/* ============================================================
   KazPin Navigator 360 — Main Stylesheet
   Design: Mesh Gradient, Modern Premium
   ============================================================ */

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  
  --clr-primary-h: 248;
  --clr-primary-s: 72%;
  --clr-primary-l: 54%;
  --clr-primary: hsl(var(--clr-primary-h), var(--clr-primary-s), var(--clr-primary-l));
  --clr-primary-dark: hsl(var(--clr-primary-h), var(--clr-primary-s), 40%);
  --clr-primary-light: hsl(var(--clr-primary-h), var(--clr-primary-s), 94%);

  
  --clr-secondary: hsl(196, 80%, 48%);
  --clr-secondary-dark: hsl(196, 80%, 34%);
  --clr-secondary-light: hsl(196, 80%, 92%);

  
  --clr-accent: hsl(320, 70%, 58%);
  --clr-accent-warm: hsl(28, 90%, 58%);

  
  --mesh-1: hsl(248, 80%, 64%);
  --mesh-2: hsl(196, 85%, 52%);
  --mesh-3: hsl(320, 65%, 60%);
  --mesh-4: hsl(160, 70%, 50%);
  --mesh-5: hsl(28, 85%, 60%);

  
  --clr-surface: hsl(248, 20%, 97%);
  --clr-surface-2: hsl(248, 15%, 94%);
  --clr-surface-3: hsl(248, 10%, 88%);
  --clr-white: hsl(0, 0%, 100%);
  --clr-card: hsl(0, 0%, 100%);

  
  --clr-text-primary: hsl(248, 25%, 14%);
  --clr-text-secondary: hsl(248, 15%, 38%);
  --clr-text-muted: hsl(248, 10%, 58%);
  --clr-text-on-dark: hsl(0, 0%, 98%);
  --clr-text-on-dark-muted: hsla(0, 0%, 100%, 0.72);

  
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  
  --shadow-sm:
    0 1px 2px hsla(248, 40%, 20%, 0.06),
    0 1px 4px hsla(248, 40%, 20%, 0.04);
  --shadow-md:
    0 2px 4px hsla(248, 40%, 20%, 0.06),
    0 4px 12px hsla(248, 40%, 20%, 0.08),
    0 8px 24px hsla(248, 40%, 20%, 0.05);
  --shadow-lg:
    0 4px 8px hsla(248, 40%, 20%, 0.06),
    0 12px 28px hsla(248, 40%, 20%, 0.10),
    0 24px 48px hsla(248, 40%, 20%, 0.08);
  --shadow-xl:
    0 8px 16px hsla(248, 40%, 20%, 0.08),
    0 24px 48px hsla(248, 40%, 20%, 0.14),
    0 40px 80px hsla(248, 40%, 20%, 0.10);
  --shadow-primary:
    0 4px 12px hsla(248, 72%, 54%, 0.28),
    0 8px 24px hsla(248, 72%, 54%, 0.16);
  --shadow-card:
    0 1px 3px hsla(248, 30%, 20%, 0.06),
    0 6px 16px hsla(248, 30%, 20%, 0.08),
    inset 0 1px 0 hsla(0, 0%, 100%, 0.8);

  
  --font-display: 'Wix Madefor Display', sans-serif;
  --font-body: 'Wix Madefor Text', sans-serif;

  
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 420ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 520ms cubic-bezier(0.34, 1.56, 0.64, 1);

  
  --container-max: 1200px;
  --container-pad: clamp(1rem, 5vw, 2rem);
  --nav-height: 72px;
  --section-pad: clamp(3rem, 8vw, 6rem);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-text-primary);
  background-color: var(--clr-surface);
  min-block-size: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1;
}

img {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base), opacity var(--transition-base);
}

ul {
  list-style: none;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-body);
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--clr-text-primary);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-inline-size: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section-pad {
  padding-block: var(--section-pad);
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
.hero__title {
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.08;
  color: var(--clr-text-primary);
}

.page-hero__title {
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--clr-text-primary);
}

.section-title {
  font-size: clamp(1.55rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--clr-text-primary);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: var(--clr-primary-light);
  padding-block: 3px;
  padding-inline: 12px;
  border-radius: var(--radius-full);
  margin-block-end: var(--sp-4);
}

.section-sub {
  font-size: clamp(1rem, 2vw, 1.12rem);
  color: var(--clr-text-secondary);
  max-inline-size: 56ch;
  margin-block-start: var(--sp-4);
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-block-end: clamp(2.5rem, 5vw, 4rem);
}

.section-header .section-sub {
  margin-inline: auto;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding-block: 0.78rem;
  padding-inline: 1.75rem;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-spring);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-block-size: 48px;
  position: relative;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--clr-primary);
  color: var(--clr-white);
  box-shadow: var(--shadow-primary);
}

.btn--primary:hover {
  background: var(--clr-primary-dark);
  box-shadow:
    0 6px 20px hsla(248, 72%, 54%, 0.38),
    0 12px 36px hsla(248, 72%, 54%, 0.22);
  color: var(--clr-white);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text-primary);
  border-color: var(--clr-surface-3);
}

.btn--ghost:hover {
  background: var(--clr-surface-2);
  border-color: var(--clr-surface-3);
}

.btn--outline {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}

.btn--outline:hover {
  background: var(--clr-primary-light);
}

.btn--white {
  background: var(--clr-white);
  color: var(--clr-primary);
  box-shadow: var(--shadow-md);
}

.btn--white:hover {
  background: var(--clr-surface);
  box-shadow: var(--shadow-lg);
  color: var(--clr-primary-dark);
}

.btn--ghost-white {
  background: transparent;
  color: var(--clr-text-on-dark);
  border-color: hsla(0, 0%, 100%, 0.38);
}

.btn--ghost-white:hover {
  background: hsla(0, 0%, 100%, 0.12);
  border-color: hsla(0, 0%, 100%, 0.65);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  block-size: var(--nav-height);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: hsla(248, 30%, 97%, 0.72);
  border-block-end: 1px solid hsla(248, 30%, 80%, 0.22);
  box-shadow:
    0 1px 0 hsla(0, 0%, 100%, 0.55),
    0 2px 20px hsla(248, 40%, 20%, 0.06);
  transition:
    background var(--transition-base),
    box-shadow var(--transition-base);
}

.nav--scrolled {
  background: hsla(248, 30%, 97%, 0.90);
  box-shadow:
    0 1px 0 hsla(0, 0%, 100%, 0.55),
    0 4px 24px hsla(248, 40%, 20%, 0.11);
}

.nav__inner {
  max-inline-size: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  block-size: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
}

.nav__logo-img {
  block-size: 40px;
  inline-size: auto;
}

.nav__links {
  display: none;
  align-items: center;
  gap: 2px;
}

@media (min-width: 900px) {
  .nav__links {
    display: flex;
  }
}

.nav__link {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-text-secondary);
  padding-block: var(--sp-2);
  padding-inline: var(--sp-3);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-base),
    background var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--clr-primary);
  background: var(--clr-primary-light);
}

.nav__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: var(--sp-2);
  block-size: 44px;
  inline-size: 44px;
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
}

.nav__burger:hover {
  background: var(--clr-surface-2);
}

.nav__burger span {
  display: block;
  block-size: 2px;
  inline-size: 22px;
  background: var(--clr-text-primary);
  border-radius: var(--radius-full);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}

@media (min-width: 900px) {
  .nav__burger {
    display: none;
  }
}

.nav__overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: hsla(248, 25%, 10%, 0.50);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.nav__overlay--visible {
  opacity: 1;
  pointer-events: all;
}

.nav__mobile {
  position: fixed;
  inset-block: 0;
  inset-inline-end: 0;
  z-index: 200;
  inline-size: min(320px, 85vw);
  background: var(--clr-white);
  padding: var(--sp-8) var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  box-shadow: var(--shadow-xl);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.nav__mobile--open {
  transform: translateX(0);
}

.nav__mobile-close {
  align-self: flex-end;
  block-size: 44px;
  inline-size: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.2rem;
  color: var(--clr-text-secondary);
  transition:
    background var(--transition-base),
    color var(--transition-base);
}

.nav__mobile-close:hover {
  background: var(--clr-surface-2);
  color: var(--clr-text-primary);
}

.nav__mobile-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav__mobile-links a {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  padding-block: var(--sp-3);
  padding-inline: var(--sp-4);
  border-radius: var(--radius-md);
  transition:
    background var(--transition-base),
    color var(--transition-base);
}

.nav__mobile-links a:hover {
  background: var(--clr-primary-light);
  color: var(--clr-primary);
}

.nav__mobile-cta {
  margin-block-start: auto;
  text-align: center;
  justify-content: center;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  padding-block-start: calc(var(--nav-height) + clamp(2.5rem, 6vw, 4rem));
  padding-block-end: clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}

.hero__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 90% 70% at 5% 15%, hsla(248, 80%, 64%, 0.42) 0%, transparent 55%),
    radial-gradient(ellipse 70% 80% at 95% 85%, hsla(196, 85%, 52%, 0.32) 0%, transparent 50%),
    radial-gradient(ellipse 80% 60% at 55% 40%, hsla(320, 65%, 60%, 0.16) 0%, transparent 62%),
    radial-gradient(ellipse 60% 70% at 85% 15%, hsla(160, 70%, 50%, 0.22) 0%, transparent 50%),
    radial-gradient(ellipse 50% 50% at 20% 85%, hsla(28, 85%, 60%, 0.16) 0%, transparent 55%),
    hsl(248, 25%, 97%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-inline-size: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  text-align: center;
  margin-block-end: var(--sp-8);
}

.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: hsla(248, 72%, 54%, 0.10);
  border: 1px solid hsla(248, 72%, 54%, 0.20);
  padding-block: 4px;
  padding-inline: var(--sp-4);
  border-radius: var(--radius-full);
  margin-block-end: var(--sp-5);
}

.hero__strip {
  position: relative;
  z-index: 1;
  inline-size: 100%;
  block-size: clamp(200px, 30vw, 420px);
  overflow: hidden;
}

.hero__strip-img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero__strip-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      to bottom,
      hsla(248, 25%, 97%, 0.65) 0%,
      transparent 28%,
      transparent 72%,
      hsla(248, 25%, 97%, 0.65) 100%
    );
}

.hero__bottom {
  position: relative;
  z-index: 2;
  max-inline-size: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  text-align: center;
  padding-block-start: clamp(2rem, 4vw, 3rem);
}

.hero__desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--clr-text-secondary);
  max-inline-size: 60ch;
  margin-inline: auto;
  margin-block-end: var(--sp-8);
  line-height: 1.72;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
}

/* ============================================================
   SUBJECTS SECTION
   ============================================================ */
.subjects {
  background: var(--clr-white);
}

.subjects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-5);
}

.subject-card {
  background: var(--clr-white);
  border: 1px solid var(--clr-surface-3);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-card);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
  animation-delay: var(--delay, 0s);
}

.subject-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: hsla(248, 72%, 54%, 0.25);
}

.subject-card__icon {
  inline-size: 52px;
  block-size: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  border-radius: var(--radius-md);
  font-size: 1.4rem;
  margin-block-end: var(--sp-4);
  transition:
    background var(--transition-base),
    color var(--transition-base);
}

.subject-card:hover .subject-card__icon {
  background: var(--clr-primary);
  color: var(--clr-white);
}

.subject-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-block-end: var(--sp-3);
  color: var(--clr-text-primary);
}

.subject-card__text {
  font-size: 0.9rem;
  color: var(--clr-text-secondary);
  line-height: 1.62;
}

/* ============================================================
   STICKY VISUAL SECTION
   ============================================================ */
.sticky-section {
  display: grid;
  grid-template-columns: 1fr;
  position: relative;
}

@media (min-width: 900px) {
  .sticky-section {
    grid-template-columns: 1fr 1fr;
    min-block-size: 100vh;
  }
}

.sticky-section__visual {
  position: relative;
  overflow: hidden;
  min-block-size: 50vh;
}

@media (min-width: 900px) {
  .sticky-section__visual {
    position: sticky;
    inset-block-start: var(--nav-height);
    block-size: calc(100vh - var(--nav-height));
    min-block-size: unset;
  }
}

.sticky-section__mesh {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, hsla(248, 80%, 64%, 0.52) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 80% 80%, hsla(196, 85%, 52%, 0.42) 0%, transparent 50%),
    radial-gradient(ellipse 70% 50% at 50% 50%, hsla(320, 65%, 60%, 0.26) 0%, transparent 60%),
    hsl(248, 40%, 18%);
}

.sticky-section__img {
  position: absolute;
  inset: 0;
  z-index: 2;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  mix-blend-mode: luminosity;
  opacity: 0.50;
}

.sticky-section__badge {
  position: absolute;
  inset-block-end: var(--sp-8);
  inset-inline-start: var(--sp-8);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  background: hsla(0, 0%, 100%, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid hsla(0, 0%, 100%, 0.24);
  color: var(--clr-white);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.88rem;
  padding-block: var(--sp-3);
  padding-inline: var(--sp-4);
  border-radius: var(--radius-full);
}

.sticky-section__content {
  padding: clamp(var(--sp-10), 6vw, var(--sp-20));
  display: flex;
  flex-direction: column;
  gap: var(--sp-10);
  background: var(--clr-surface);
}

.sticky-section__block {
  max-inline-size: 56ch;
}

.sticky-section__block p {
  color: var(--clr-text-secondary);
  line-height: 1.72;
  margin-block-start: var(--sp-4);
}

.sticky-section__sub {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  margin-block-end: var(--sp-2);
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services {
  position: relative;
  overflow: hidden;
}

.services__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 90% 10%, hsla(248, 80%, 64%, 0.16) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 10% 90%, hsla(196, 85%, 52%, 0.14) 0%, transparent 50%),
    var(--clr-white);
}

.services__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-6);
}

.service-item {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  animation-delay: var(--delay, 0s);
  position: relative;
}

.service-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.service-item__num {
  position: absolute;
  inset-block-start: var(--sp-4);
  inset-inline-end: var(--sp-4);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--clr-text-muted);
  background: var(--clr-surface-2);
  padding-block: 2px;
  padding-inline: var(--sp-2);
  border-radius: var(--radius-sm);
  z-index: 1;
}

.service-item__img {
  inline-size: 100%;
  block-size: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
  display: block;
}

.service-item:hover .service-item__img {
  transform: scale(1.04);
}

.service-item__title {
  font-size: 1.08rem;
  font-weight: 700;
  margin-block-end: var(--sp-3);
  color: var(--clr-text-primary);
  padding-inline: var(--sp-5);
  padding-block-start: var(--sp-5);
}

.service-item__text {
  font-size: 0.9rem;
  color: var(--clr-text-secondary);
  line-height: 1.65;
  padding-inline: var(--sp-5);
  padding-block-end: var(--sp-5);
}

/* ============================================================
   OVERLAP ZONE
   ============================================================ */
.overlap-zone {
  position: relative;
  z-index: 10;
  margin-block-start: calc(-1 * var(--sp-10));
  padding-block-end: var(--sp-16);
  background: var(--clr-surface);
}

.overlap-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-5);
}

.overlap-card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--clr-surface-3);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  animation-delay: var(--delay, 0s);
}

.overlap-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.overlap-card__icon {
  font-size: 1.6rem;
  color: var(--clr-primary);
  margin-block-end: var(--sp-4);
}

.overlap-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-block-end: var(--sp-2);
  color: var(--clr-text-primary);
}

.overlap-card p {
  font-size: 0.88rem;
  color: var(--clr-text-secondary);
  line-height: 1.62;
}

/* ============================================================
   CALCULATOR SECTION
   ============================================================ */
.calculator {
  position: relative;
  overflow: hidden;
}

.calculator__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 100% 80% at 0% 50%, hsla(248, 80%, 64%, 0.26) 0%, transparent 55%),
    radial-gradient(ellipse 80% 100% at 100% 50%, hsla(196, 85%, 52%, 0.20) 0%, transparent 50%),
    radial-gradient(ellipse 60% 60% at 50% 50%, hsla(320, 65%, 60%, 0.10) 0%, transparent 60%),
    hsl(248, 30%, 96%);
}

.calculator__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: start;
}

@media (min-width: 768px) {
  .calculator__inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.calculator__info .section-title {
  margin-block-start: var(--sp-3);
}

.calculator__info > p {
  color: var(--clr-text-secondary);
  line-height: 1.7;
  margin-block-start: var(--sp-4);
  font-size: 0.95rem;
}

.calculator__note {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: 0.84rem;
  color: var(--clr-text-muted);
  background: var(--clr-white);
  border: 1px solid var(--clr-surface-3);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  margin-block-start: var(--sp-5);
  line-height: 1.55;
}

.calculator__note i {
  color: var(--clr-primary);
  flex-shrink: 0;
  margin-block-start: 2px;
}

.calc-form {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  padding: clamp(var(--sp-6), 4vw, var(--sp-10));
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--clr-surface-3);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.calc-label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--clr-text-secondary);
  margin-block-end: var(--sp-2);
  letter-spacing: 0.02em;
}

.calc-select {
  inline-size: 100%;
  padding-block: 0.72rem;
  padding-inline: var(--sp-4);
  padding-inline-end: 2.5rem;
  border: 1.5px solid var(--clr-surface-3);
  border-radius: var(--radius-md);
  background-color: var(--clr-surface);
  color: var(--clr-text-primary);
  font-size: 0.95rem;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sp-4) center;
  cursor: pointer;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  min-block-size: 48px;
}

.calc-select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px hsla(248, 72%, 54%, 0.12);
}

.calc-toggle {
  display: flex;
  gap: 4px;
  background: var(--clr-surface-2);
  padding: 4px;
  border-radius: var(--radius-md);
}

.calc-toggle__btn {
  flex: 1;
  padding-block: var(--sp-2);
  padding-inline: var(--sp-4);
  border-radius: calc(var(--radius-md) - 2px);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-text-secondary);
  transition:
    background var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base);
  min-block-size: 40px;
  cursor: pointer;
  border: none;
  background: transparent;
}

.calc-toggle__btn--active {
  background: var(--clr-white);
  color: var(--clr-primary);
  box-shadow: var(--shadow-sm);
}

.calc-stepper {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  background: var(--clr-surface-2);
  padding: 4px;
  border-radius: var(--radius-md);
  inline-size: fit-content;
}

.calc-stepper__btn {
  inline-size: 40px;
  block-size: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-white);
  border-radius: calc(var(--radius-md) - 2px);
  color: var(--clr-primary);
  font-size: 0.85rem;
  box-shadow: var(--shadow-sm);
  transition:
    background var(--transition-base),
    color var(--transition-base),
    transform var(--transition-spring);
  border: none;
  cursor: pointer;
}

.calc-stepper__btn:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
  transform: scale(1.08);
}

.calc-stepper__val {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  min-inline-size: 2ch;
  text-align: center;
}

.calc-result {
  background: var(--clr-primary-light);
  border: 1px solid hsla(248, 72%, 54%, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
  text-align: center;
}

.calc-result__label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-block-end: var(--sp-2);
}

.calc-result__value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--clr-primary-dark);
  letter-spacing: -0.025em;
  transition: color var(--transition-base);
}

.calc-result__note {
  font-size: 0.76rem;
  color: var(--clr-text-muted);
  margin-block-start: var(--sp-2);
}

.calc-cta {
  inline-size: 100%;
  justify-content: center;
}

/* ============================================================
   APPROACH PREVIEW
   ============================================================ */
.approach-preview {
  background: var(--clr-white);
}

.approach-preview__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: center;
}

@media (min-width: 768px) {
  .approach-preview__inner {
    grid-template-columns: 1fr 1fr;
  }
}

.approach-preview__visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.approach-preview__img {
  inline-size: 100%;
  block-size: clamp(280px, 40vw, 480px);
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: block;
}

.approach-preview__card {
  position: absolute;
  inset-block-end: var(--sp-6);
  inset-inline-start: var(--sp-6);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  background: hsla(0, 0%, 100%, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid hsla(0, 0%, 100%, 0.65);
  border-radius: var(--radius-full);
  padding-block: var(--sp-3);
  padding-inline: var(--sp-4);
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--clr-primary);
  box-shadow: var(--shadow-md);
}

.approach-preview__card i {
  font-size: 1rem;
}

.approach-preview__text {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.approach-preview__text p {
  color: var(--clr-text-secondary);
  line-height: 1.72;
  font-size: 0.97rem;
}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--sp-16), 8vw, var(--sp-24));
}

.cta-banner__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 100% 80% at 0% 0%, hsla(248, 80%, 50%, 1) 0%, transparent 50%),
    radial-gradient(ellipse 80% 100% at 100% 100%, hsla(196, 85%, 44%, 0.95) 0%, transparent 50%),
    radial-gradient(ellipse 60% 60% at 50% 50%, hsla(320, 65%, 55%, 0.38) 0%, transparent 60%),
    radial-gradient(ellipse 80% 80% at 80% 20%, hsla(248, 72%, 40%, 0.78) 0%, transparent 55%),
    hsl(248, 60%, 28%);
}

.cta-banner__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-inline-size: 700px;
  margin-inline: auto;
}

.cta-banner__title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--clr-text-on-dark);
  margin-block-end: var(--sp-4);
  letter-spacing: -0.022em;
}

.cta-banner__sub {
  font-size: clamp(1rem, 2vw, 1.12rem);
  color: var(--clr-text-on-dark-muted);
  margin-block-end: var(--sp-8);
  line-height: 1.72;
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  position: relative;
  padding-block-start: calc(var(--nav-height) + clamp(3rem, 6vw, 5rem));
  padding-block-end: clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}

.page-hero__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 70% at 10% 20%, hsla(248, 80%, 64%, 0.30) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 90% 80%, hsla(196, 85%, 52%, 0.22) 0%, transparent 50%),
    radial-gradient(ellipse 50% 50% at 60% 30%, hsla(320, 65%, 60%, 0.13) 0%, transparent 60%),
    hsl(248, 25%, 97%);
}

.page-hero__content {
  position: relative;
  z-index: 1;
  max-inline-size: 700px;
}

.page-hero__sub {
  font-size: clamp(1rem, 2vw, 1.12rem);
  color: var(--clr-text-secondary);
  margin-block-start: var(--sp-4);
  line-height: 1.72;
  max-inline-size: 60ch;
}

/* ============================================================
   WHY PAGE
   ============================================================ */
.why-values {
  background: var(--clr-surface);
}

.why-values__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-6);
}

.why-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  animation-delay: var(--delay, 0s);
}

.why-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.why-card__icon {
  inline-size: 56px;
  block-size: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  margin-block-end: var(--sp-5);
  background: linear-gradient(
    135deg,
    hsla(248, 72%, 54%, 0.14),
    hsla(196, 85%, 52%, 0.10)
  );
  color: var(--clr-primary);
  transition:
    background var(--transition-base),
    color var(--transition-base);
}

.why-card:hover .why-card__icon {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-secondary));
  color: var(--clr-white);
}

.why-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-block-end: var(--sp-3);
}

.why-card p {
  font-size: 0.92rem;
  color: var(--clr-text-secondary);
  line-height: 1.68;
}

.why-image-section {
  position: relative;
  overflow: hidden;
  background: var(--clr-white);
}

.why-image-section__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 80% at 100% 50%, hsla(248, 80%, 64%, 0.12) 0%, transparent 55%),
    transparent;
}

.why-image-section__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: center;
}

@media (min-width: 768px) {
  .why-image-section__inner {
    grid-template-columns: 1fr 1fr;
  }
}

.why-image-section__text .section-title {
  margin-block-start: var(--sp-3);
}

.why-image-section__text p {
  color: var(--clr-text-secondary);
  line-height: 1.72;
  margin-block-start: var(--sp-4);
  font-size: 0.97rem;
}

.why-image-section__img {
  inline-size: 100%;
  block-size: clamp(280px, 40vw, 500px);
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: block;
}

.why-formats {
  background: var(--clr-surface);
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-6);
}

.format-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  animation-delay: var(--delay, 0s);
}

.format-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.format-card__img {
  inline-size: 100%;
  block-size: 220px;
  object-fit: cover;
  transition: transform var(--transition-slow);
  display: block;
}

.format-card:hover .format-card__img {
  transform: scale(1.04);
}

.format-card__body {
  padding: var(--sp-6);
}

.format-card__title {
  font-size: 1.08rem;
  font-weight: 700;
  margin-block-end: var(--sp-3);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  color: var(--clr-text-primary);
}

.format-card__title i {
  color: var(--clr-primary);
}

.format-card p {
  font-size: 0.92rem;
  color: var(--clr-text-secondary);
  line-height: 1.65;
}

/* ============================================================
   APPROACH PAGE
   ============================================================ */
.approach-steps {
  background: var(--clr-white);
}

.steps-list {
  display: flex;
  flex-direction: column;
  position: relative;
  max-inline-size: 800px;
}

.steps-list::before {
  content: '';
  position: absolute;
  inset-inline-start: 27px;
  inset-block: 0;
  inline-size: 2px;
  background: linear-gradient(
    to bottom,
    var(--clr-primary),
    var(--clr-secondary)
  );
  opacity: 0.18;
  border-radius: var(--radius-full);
}

.step-item {
  display: flex;
  gap: var(--sp-6);
  padding-block: var(--sp-8);
  position: relative;
  animation-delay: var(--delay, 0s);
}

.step-item__num {
  flex-shrink: 0;
  inline-size: 56px;
  block-size: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-white);
  border: 2px solid var(--clr-primary-light);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--clr-primary);
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 1;
  transition:
    background var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base);
}

.step-item:hover .step-item__num {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

.step-item__body {
  padding-block-start: var(--sp-3);
}

.step-item__body h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-block-end: var(--sp-3);
}

.step-item__body p {
  font-size: 0.95rem;
  color: var(--clr-text-secondary);
  line-height: 1.72;
  max-inline-size: 60ch;
}

.approach-exam {
  position: relative;
  overflow: hidden;
}

.approach-exam__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 70% at 5% 50%, hsla(248, 80%, 64%, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 95% 50%, hsla(196, 85%, 52%, 0.14) 0%, transparent 50%),
    var(--clr-surface);
}

.approach-exam__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: center;
}

@media (min-width: 768px) {
  .approach-exam__inner {
    grid-template-columns: 1fr 1fr;
  }
}

.approach-exam__text .section-title {
  margin-block-start: var(--sp-3);
}

.approach-exam__text p {
  color: var(--clr-text-secondary);
  line-height: 1.72;
  margin-block-start: var(--sp-4);
  font-size: 0.97rem;
}

.approach-exam__img {
  inline-size: 100%;
  block-size: clamp(260px, 38vw, 460px);
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: block;
}

.approach-homework {
  background: var(--clr-white);
}

.homework-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--sp-5);
}

.homework-card {
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  animation-delay: var(--delay, 0s);
}

.homework-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.homework-card__icon {
  font-size: 1.55rem;
  color: var(--clr-secondary);
  margin-block-end: var(--sp-4);
}

.homework-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-block-end: var(--sp-3);
}

.homework-card p {
  font-size: 0.9rem;
  color: var(--clr-text-secondary);
  line-height: 1.65;
}

/* ============================================================
   CLIENTS PAGE
   ============================================================ */
.clients-who {
  background: var(--clr-surface);
}

.who-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-6);
}

.who-card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  animation-delay: var(--delay, 0s);
}

.who-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.who-card__header {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-block-end: var(--sp-4);
}

.who-card__header i {
  font-size: 1.6rem;
  color: var(--clr-primary);
}

.who-card__header h3 {
  font-size: 1.08rem;
  font-weight: 700;
}

.who-card > p {
  font-size: 0.92rem;
  color: var(--clr-text-secondary);
  line-height: 1.65;
  margin-block-end: var(--sp-5);
}

.who-card__list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.who-card__list li {
  font-size: 0.88rem;
  color: var(--clr-text-secondary);
  padding-inline-start: var(--sp-5);
  position: relative;
  line-height: 1.5;
}

.who-card__list li::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.52em;
  inline-size: 6px;
  block-size: 6px;
  background: var(--clr-primary);
  border-radius: var(--radius-full);
}

.clients-subjects {
  position: relative;
  overflow: hidden;
}

.clients-subjects__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 60% at 100% 20%, hsla(248, 80%, 64%, 0.13) 0%, transparent 55%),
    radial-gradient(ellipse 60% 70% at 0% 80%, hsla(196, 85%, 52%, 0.10) 0%, transparent 50%),
    var(--clr-white);
}

.subjects-detail {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.subject-detail-card {
  display: flex;
  gap: var(--sp-6);
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  animation-delay: var(--delay, 0s);
}

.subject-detail-card:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
}

.subject-detail-card__icon {
  flex-shrink: 0;
  inline-size: 52px;
  block-size: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  border-radius: var(--radius-md);
  font-size: 1.3rem;
  transition:
    background var(--transition-base),
    color var(--transition-base);
}

.subject-detail-card:hover .subject-detail-card__icon {
  background: var(--clr-primary);
  color: var(--clr-white);
}

.subject-detail-card__body h3 {
  font-size: 1.04rem;
  font-weight: 700;
  margin-block-end: var(--sp-2);
}

.subject-detail-card__body p {
  font-size: 0.9rem;
  color: var(--clr-text-secondary);
  line-height: 1.65;
}

.subject-detail-card__body p + p {
  margin-block-start: var(--sp-2);
  font-style: italic;
  color: var(--clr-text-muted);
  font-size: 0.86rem;
}


.clients-faq {
  background: var(--clr-surface);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  max-inline-size: 800px;
  margin-inline: auto;
}

.faq-item {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-surface-3);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  animation-delay: var(--delay, 0s);
  transition: box-shadow var(--transition-base);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-item__q {
  inline-size: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6);
  text-align: start;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  cursor: pointer;
  transition:
    color var(--transition-base),
    background var(--transition-base);
  min-block-size: 60px;
  border: none;
  background: transparent;
}

.faq-item__q:hover {
  color: var(--clr-primary);
  background: var(--clr-primary-light);
}

.faq-item__q i {
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  transition:
    transform var(--transition-base),
    color var(--transition-base);
}

.faq-item__q[aria-expanded="true"] i {
  transform: rotate(180deg);
  color: var(--clr-primary);
}

.faq-item__a {
  max-block-size: 0;
  overflow: hidden;
  transition:
    max-block-size var(--transition-slow),
    padding var(--transition-slow);
  padding-inline: var(--sp-6);
  padding-block-end: 0;
}

.faq-item__a.open {
  max-block-size: 400px;
  padding-block-end: var(--sp-5);
}

.faq-item__a p {
  font-size: 0.92rem;
  color: var(--clr-text-secondary);
  line-height: 1.72;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-section {
  background: var(--clr-surface);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-10);
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1.4fr 1fr;
  }
}

.contact-form-wrap__title {
  font-size: 1.55rem;
  font-weight: 700;
  margin-block-end: var(--sp-2);
}

.contact-form-wrap__sub {
  font-size: 0.95rem;
  color: var(--clr-text-secondary);
  margin-block-end: var(--sp-8);
  line-height: 1.6;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-text-secondary);
  letter-spacing: 0.02em;
}

.req {
  color: var(--clr-primary);
}

.form-input {
  padding-block: 0.78rem;
  padding-inline: var(--sp-4);
  border: 1.5px solid var(--clr-surface-3);
  border-radius: var(--radius-md);
  background: var(--clr-surface);
  color: var(--clr-text-primary);
  font-size: 0.95rem;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
  inline-size: 100%;
  min-block-size: 48px;
}

.form-input:focus {
  outline: none;
  border-color: var(--clr-primary);
  background: var(--clr-white);
  box-shadow: 0 0 0 3px hsla(248, 72%, 54%, 0.12);
}

.form-input::placeholder {
  color: var(--clr-text-muted);
}

.form-select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sp-4) center;
  padding-inline-end: 2.5rem;
}

.form-textarea {
  resize: vertical;
  min-block-size: 120px;
  line-height: 1.62;
}

.form-field--checkbox {
  flex-direction: row;
  align-items: flex-start;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  cursor: pointer;
}

.form-checkbox input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  inline-size: 0;
  block-size: 0;
}

.form-checkbox__box {
  flex-shrink: 0;
  inline-size: 20px;
  block-size: 20px;
  border: 2px solid var(--clr-surface-3);
  border-radius: var(--radius-sm);
  background: var(--clr-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    border-color var(--transition-base),
    background var(--transition-base);
  margin-block-start: 2px;
}

.form-checkbox input:checked + .form-checkbox__box {
  background: var(--clr-primary);
  border-color: var(--clr-primary);
}

.form-checkbox input:checked + .form-checkbox__box::after {
  content: '';
  inline-size: 10px;
  block-size: 6px;
  border-inline-start: 2px solid white;
  border-block-end: 2px solid white;
  transform: rotate(-45deg) translateY(-1px);
  display: block;
}

.form-checkbox__label {
  font-size: 0.875rem;
  color: var(--clr-text-secondary);
  line-height: 1.55;
}

.form-checkbox__label a {
  color: var(--clr-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-error {
  font-size: 0.875rem;
  color: hsl(0, 65%, 48%);
  background: hsl(0, 65%, 97%);
  border: 1px solid hsl(0, 65%, 88%);
  border-radius: var(--radius-md);
  padding: var(--sp-3) var(--sp-4);
  line-height: 1.5;
}

.form-submit {
  inline-size: 100%;
  justify-content: center;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.contact-info__card {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  padding: var(--sp-8);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
}

.contact-info__title {
  font-size: 1.18rem;
  font-weight: 700;
  margin-block-end: var(--sp-6);
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  padding-block: var(--sp-4);
  border-block-end: 1px solid var(--clr-surface-2);
}

.contact-info__item:last-child {
  border-block-end: none;
  padding-block-end: 0;
}

.contact-info__item i {
  flex-shrink: 0;
  inline-size: 36px;
  block-size: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-primary-light);
  color: var(--clr-primary);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

.contact-info__item strong {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-block-end: var(--sp-1);
}

.contact-info__item p,
.contact-info__item a {
  font-size: 0.94rem;
  color: var(--clr-text-secondary);
  line-height: 1.55;
}

.contact-info__item a:hover {
  color: var(--clr-primary);
}

.contact-info__formats {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--clr-surface-3);
}

.contact-info__formats h4 {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  margin-block-end: var(--sp-4);
}

.contact-format {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding-block: var(--sp-3);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-text-primary);
  border-block-end: 1px solid var(--clr-surface-2);
}

.contact-format:last-child {
  border-block-end: none;
  padding-block-end: 0;
}

.contact-format i {
  color: var(--clr-primary);
  font-size: 1rem;
}

.map-section {
  padding-block: var(--sp-12);
  background: var(--clr-surface);
}

.map-wrap {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--clr-surface-3);
}

.map-wrap__title {
  font-size: 1.08rem;
  font-weight: 700;
  padding: var(--sp-5) var(--sp-6);
  border-block-end: 1px solid var(--clr-surface-2);
}

.map-embed iframe {
  display: block;
  inline-size: 100%;
}

/* ============================================================
   THANKS PAGE
   ============================================================ */
.thanks-main {
  position: relative;
  min-block-size: calc(100dvh - var(--nav-height));
  display: flex;
  align-items: center;
  padding-block-start: var(--nav-height);
  overflow: hidden;
}

.thanks-mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 70% at 20% 30%, hsla(248, 80%, 64%, 0.32) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 80% 70%, hsla(196, 85%, 52%, 0.26) 0%, transparent 50%),
    radial-gradient(ellipse 50% 50% at 50% 50%, hsla(160, 70%, 50%, 0.14) 0%, transparent 60%),
    hsl(248, 25%, 97%);
}

.thanks-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-inline-size: 600px;
  margin-inline: auto;
  padding-block: var(--sp-16);
}

.thanks-icon {
  font-size: 4rem;
  color: hsl(142, 60%, 46%);
  margin-block-end: var(--sp-6);
  animation: thanks-pop 0.65s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes thanks-pop {
  0% { transform: scale(0.4); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.thanks-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-block-end: var(--sp-4);
  letter-spacing: -0.022em;
}

.thanks-sub {
  font-size: 1.05rem;
  color: var(--clr-text-secondary);
  line-height: 1.72;
  margin-block-end: var(--sp-4);
}

.thanks-contact {
  font-size: 0.95rem;
  color: var(--clr-text-muted);
  margin-block-end: var(--sp-8);
}

.thanks-contact a {
  color: var(--clr-primary);
  font-weight: 600;
}

.thanks-contact a:hover {
  color: var(--clr-primary-dark);
}

.thanks-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: center;
}

/* ============================================================
   LEGAL PAGES
   ============================================================ */
.legal-hero {
  position: relative;
  padding-block-start: calc(var(--nav-height) + var(--sp-12));
  padding-block-end: var(--sp-10);
  overflow: hidden;
  background: var(--clr-surface);
}

.legal-hero__content {
  position: relative;
  z-index: 1;
}

.legal-hero__title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.022em;
  margin-block-end: var(--sp-3);
}

.legal-hero__date {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
}

.legal-content {
  background: var(--clr-white);
}

.legal-body {
  max-inline-size: 800px;
  margin-inline: auto;
}

.legal-body h2 {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  margin-block-start: var(--sp-10);
  margin-block-end: var(--sp-4);
  padding-block-end: var(--sp-3);
  border-block-end: 2px solid var(--clr-primary-light);
}

.legal-body h3 {
  font-size: 1.04rem;
  font-weight: 700;
  margin-block-start: var(--sp-6);
  margin-block-end: var(--sp-3);
  color: var(--clr-text-primary);
}

.legal-body p {
  font-size: 0.95rem;
  color: var(--clr-text-secondary);
  line-height: 1.82;
  margin-block-end: var(--sp-4);
}

.legal-body a {
  color: var(--clr-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-body a:hover {
  color: var(--clr-primary-dark);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  position: relative;
  overflow: hidden;
  background: var(--clr-text-primary);
  padding-block: clamp(var(--sp-12), 6vw, var(--sp-20));
}

.footer__mesh {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 80% at 10% 50%, hsla(248, 80%, 64%, 0.11) 0%, transparent 55%),
    radial-gradient(ellipse 50% 60% at 90% 50%, hsla(196, 85%, 52%, 0.09) 0%, transparent 50%);
}

.footer__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-6);
  text-align: center;
}

.footer__logo img {
  block-size: 44px;
  inline-size: auto;
  filter: brightness(0) invert(1);
  opacity: 0.88;
  transition: opacity var(--transition-base);
}

.footer__logo:hover img {
  opacity: 1;
}

.footer__tagline {
  font-size: 0.9rem;
  color: var(--clr-text-on-dark-muted);
  max-inline-size: 44ch;
  line-height: 1.6;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-5);
  justify-content: center;
  padding-block: var(--sp-5);
  border-block: 1px solid hsla(0, 0%, 100%, 0.10);
  inline-size: 100%;
}

.footer__nav a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--clr-text-on-dark-muted);
  transition: color var(--transition-base);
}

.footer__nav a:hover {
  color: var(--clr-text-on-dark);
}

.footer__contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-6);
  justify-content: center;
}

.footer__contact a,
.footer__contact span {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.875rem;
  color: var(--clr-text-on-dark-muted);
  transition: color var(--transition-base);
}

.footer__contact a:hover {
  color: var(--clr-text-on-dark);
}

.footer__contact i {
  color: var(--clr-secondary);
  font-size: 0.84rem;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-4);
  justify-content: center;
}

.footer__legal a {
  font-size: 0.78rem;
  color: hsla(0, 0%, 100%, 0.38);
  transition: color var(--transition-base);
}

.footer__legal a:hover {
  color: hsla(0, 0%, 100%, 0.68);
}

.footer__copy {
  font-size: 0.76rem;
  color: hsla(0, 0%, 100%, 0.28);
}

/* ============================================================
   COOKIE CONSENT BANNER
   ============================================================ */
.cookie-banner {
  position: fixed;
  inset-block-end: var(--sp-5);
  inset-inline: var(--sp-4);
  z-index: 1000;
  max-inline-size: 520px;
  margin-inline: auto;
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--clr-surface-3);
  padding: var(--sp-6);
  display: none;
  flex-direction: column;
  gap: var(--sp-4);
  animation: cookie-slide-up 0.42s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.cookie-banner--visible {
  display: flex;
}

@keyframes cookie-slide-up {
  0% { transform: translateY(24px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

.cookie-banner__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text-primary);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.cookie-banner__title i {
  color: var(--clr-accent-warm);
}

.cookie-banner__text {
  font-size: 0.875rem;
  color: var(--clr-text-secondary);
  line-height: 1.62;
}

.cookie-banner__text a {
  color: var(--clr-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

.cookie-btn {
  flex: 1;
  min-inline-size: 100px;
  padding-block: 0.6rem;
  padding-inline: var(--sp-4);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-spring);
  border: 1.5px solid transparent;
  min-block-size: 40px;
}

.cookie-btn:hover {
  transform: translateY(-1px);
}

.cookie-btn--accept {
  background: var(--clr-primary);
  color: var(--clr-white);
  box-shadow: var(--shadow-primary);
}

.cookie-btn--accept:hover {
  background: var(--clr-primary-dark);
}

.cookie-btn--reject {
  background: var(--clr-surface-2);
  color: var(--clr-text-secondary);
  border-color: var(--clr-surface-3);
}

.cookie-btn--reject:hover {
  background: var(--clr-surface-3);
  color: var(--clr-text-primary);
}

.cookie-btn--customize {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary-light);
}

.cookie-btn--customize:hover {
  background: var(--clr-primary-light);
}


.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  background: hsla(248, 25%, 10%, 0.58);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.cookie-modal--visible {
  display: flex;
}

.cookie-modal__inner {
  background: var(--clr-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--sp-8);
  max-inline-size: 500px;
  inline-size: 100%;
  max-block-size: 90dvh;
  overflow-y: auto;
  animation: cookie-modal-in 0.32s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes cookie-modal-in {
  0% { transform: scale(0.94); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.cookie-modal__title {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  margin-block-end: var(--sp-5);
}

.cookie-category {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  padding-block: var(--sp-4);
  border-block-end: 1px solid var(--clr-surface-2);
}

.cookie-category:last-of-type {
  border-block-end: none;
}

.cookie-category__info {
  flex: 1;
}

.cookie-category__name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  margin-block-end: var(--sp-1);
  color: var(--clr-text-primary);
}

.cookie-category__desc {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
}

.cookie-toggle {
  flex-shrink: 0;
  inline-size: 44px;
  block-size: 24px;
  border-radius: var(--radius-full);
  background: var(--clr-surface-3);
  position: relative;
  cursor: pointer;
  transition: background var(--transition-base);
  border: none;
  margin-block-start: 2px;
}

.cookie-toggle::after {
  content: '';
  position: absolute;
  inset-block-start: 3px;
  inset-inline-start: 3px;
  inline-size: 18px;
  block-size: 18px;
  border-radius: var(--radius-full);
  background: var(--clr-white);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base);
}

.cookie-toggle--on {
  background: var(--clr-primary);
}

.cookie-toggle--on::after {
  transform: translateX(20px);
}

.cookie-toggle--disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.cookie-modal__actions {
  display: flex;
  gap: var(--sp-3);
  margin-block-start: var(--sp-6);
  flex-wrap: wrap;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes hero-fade-in {
  0% { opacity: 0; transform: translateY(26px); }
  100% { opacity: 1; transform: translateY(0); }
}

.animate-hero-top {
  animation: hero-fade-in 0.72s cubic-bezier(0.4, 0, 0.2, 1) 0.08s both;
}

.animate-hero-bottom {
  animation: hero-fade-in 0.72s cubic-bezier(0.4, 0, 0.2, 1) 0.28s both;
}

.animate-fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity 0.62s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.62s cubic-bezier(0.4, 0, 0.2, 1);
  transition-delay: var(--delay, 0s);
}

.animate-fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   INTL TEL INPUT OVERRIDES
   ============================================================ */
.iti {
  inline-size: 100%;
}

.iti__flag-container {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.iti--separate-dial-code .iti__selected-flag {
  background: var(--clr-surface-2);
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 600px) {
  .hero__ctas,
  .cta-banner__actions,
  .thanks-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
    text-align: center;
  }

  .subject-detail-card {
    flex-direction: column;
  }

  .step-item {
    gap: var(--sp-4);
  }

  .steps-list::before {
    inset-inline-start: 23px;
  }

  .step-item__num {
    inline-size: 48px;
    block-size: 48px;
    font-size: 1rem;
  }

  .sticky-section__badge {
    inset-block-end: var(--sp-4);
    inset-inline-start: var(--sp-4);
    font-size: 0.78rem;
  }

  .overlap-zone {
    margin-block-start: 0;
  }

  .cookie-banner__actions {
    flex-direction: column;
  }

  .cookie-btn {
    flex: none;
    inline-size: 100%;
  }
}

@media (max-width: 768px) {
  .calculator__inner {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .approach-preview__inner {
    grid-template-columns: 1fr;
  }

  .why-image-section__inner {
    grid-template-columns: 1fr;
  }

  .approach-exam__inner {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   FOCUS STYLES
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--clr-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   SELECTION
   ============================================================ */
::selection {
  background: hsla(248, 72%, 54%, 0.18);
  color: var(--clr-primary-dark);
}

/* ============================================================
   SCROLLBAR (Webkit)
   ============================================================ */
::-webkit-scrollbar {
  inline-size: 8px;
  block-size: 8px;
}

::-webkit-scrollbar-track {
  background: var(--clr-surface-2);
}

::-webkit-scrollbar-thumb {
  background: var(--clr-surface-3);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--clr-text-muted);
}