/* ===========================================================================
   VELOCITY TUITION ACADEMY — DESIGN SYSTEM
   Brand: deep purple #3C2454, mid purple #553C61, light purple #A78BCA,
          cyan #24A8E4, dark teal-blue #186C84, neutral grey #9C9C9C
   =========================================================================== */

:root {
  /* Brand */
  --plum: #3C2454;
  --plum-mid: #553C61;
  --plum-soft: #A78BCA;
  --cyan: #24A8E4;
  --cyan-deep: #186C84;
  --grey: #9C9C9C;

  /* Surfaces */
  --bg: #FBF9FE;          /* warm off-white with purple tint */
  --bg-alt: #F4EEFA;      /* subtle lavender wash */
  --surface: #FFFFFF;
  --surface-dark: #1F1430;
  --surface-darker: #160B23;

  /* Text */
  --ink: #1A0F2E;
  --ink-soft: #4A3E5C;
  --ink-mute: #7A6F88;
  --ink-on-dark: #F4F1F8;
  --ink-on-dark-soft: #C9BCD8;
  --ink-on-dark-mute: #8C7FA1;

  /* Lines */
  --line: #EAE2F2;
  --line-soft: #F1EAF7;
  --line-on-dark: rgba(255,255,255,.10);

  /* Effects */
  --grad-hero: linear-gradient(135deg, #1F1430 0%, #3C2454 45%, #553C61 70%, #186C84 100%);
  --grad-cta: linear-gradient(135deg, #553C61 0%, #6E4F7E 45%, #186C84 100%);
  --grad-cyan: linear-gradient(135deg, #24A8E4 0%, #186C84 100%);
  --grad-aurora: radial-gradient(ellipse 80% 60% at 20% 10%, rgba(36,168,228,.35), transparent 60%),
                 radial-gradient(ellipse 70% 50% at 90% 30%, rgba(167,139,202,.35), transparent 60%),
                 radial-gradient(ellipse 90% 70% at 50% 100%, rgba(60,36,84,.5), transparent 70%);

  --shadow-sm: 0 2px 8px rgba(60,36,84,.06);
  --shadow: 0 6px 24px rgba(60,36,84,.08);
  --shadow-lg: 0 18px 48px rgba(60,36,84,.14);
  --shadow-cyan: 0 12px 32px rgba(36,168,228,.30);
  --shadow-plum: 0 12px 32px rgba(60,36,84,.32);

  /* Type — single family, weight does the work */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;

  /* Geometry */
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --container: 1140px;
  --container-narrow: 880px;

  /* Motion */
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-snap: cubic-bezier(.34,1.32,.64,1);
  --t-fast: .2s;
  --t: .35s;
  --t-slow: .6s;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
::selection { background: var(--cyan); color: white; }

/* ── TYPOGRAPHY ── */
.display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan-deep);
  margin-bottom: 14px;
}
.eyebrow.on-dark { color: var(--plum-soft); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.022em; line-height: 1.15; color: var(--ink); }
.h-display { font-size: clamp(36px, 6vw, 72px); line-height: 1.02; letter-spacing: -0.03em; }
.h-1 { font-size: clamp(30px, 4.4vw, 52px); }
.h-2 { font-size: clamp(26px, 3.6vw, 40px); }
.h-3 { font-size: clamp(20px, 2.4vw, 26px); }

.lead {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--ink-soft);
  line-height: 1.65;
  max-width: 60ch;
}

.text-accent { color: var(--cyan-deep); }
.text-on-dark { color: var(--ink-on-dark); }
.text-on-dark .lead { color: var(--ink-on-dark-soft); }

/* ── LAYOUT ── */
.wrap { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 24px; }
section { position: relative; }
.section { padding: clamp(64px, 10vw, 120px) 0; position: relative; }
.section-tight { padding: clamp(48px, 7vw, 80px) 0; }
.section-head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }

.bg-cream { background: var(--bg); }
.bg-lavender { background: var(--bg-alt); }
.bg-plum { background: var(--surface-dark); color: var(--ink-on-dark); }
.bg-plum h1, .bg-plum h2, .bg-plum h3, .bg-plum h4 { color: white; }
.bg-plum .lead { color: var(--ink-on-dark-soft); }
.bg-darker { background: var(--surface-darker); color: var(--ink-on-dark); }
.bg-darker h1, .bg-darker h2, .bg-darker h3 { color: white; }
.bg-darker .lead { color: var(--ink-on-dark-soft); }

/* ── NAV ── */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251,249,254,.78);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.site-nav.scrolled {
  background: rgba(251,249,254,.92);
  border-bottom-color: var(--line);
  box-shadow: 0 1px 0 rgba(60,36,84,.04);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-brand { display: flex; align-items: center; gap: 14px; }
.nav-brand img { height: 110px; width: auto; }
@media (max-width: 600px) { .nav-brand img { height: 80px; } }
.nav-brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--plum);
  letter-spacing: -0.015em;
  display: none;
}
@media (min-width: 700px) { .nav-brand-text { display: inline; } }

.nav-menu { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding: 6px 0;
  transition: color .2s var(--ease);
}
.nav-menu a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--cyan);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav-menu a:hover { color: var(--plum); }
.nav-menu a:hover::after { transform: scaleX(1); }
@media (max-width: 920px) { .nav-menu { display: none; } }

.nav-actions { display: flex; align-items: center; gap: 12px; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px;
  font-size: 15px; font-weight: 600; letter-spacing: -0.005em;
  border-radius: 999px;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap; cursor: pointer; line-height: 1; user-select: none;
}
.btn-primary {
  background: var(--plum); color: white;
  box-shadow: var(--shadow-plum);
}
.btn-primary:hover {
  transform: translateY(-2px);
  background: var(--plum-mid);
  box-shadow: 0 16px 40px rgba(60,36,84,.40);
}
.btn-cyan {
  background: var(--cyan); color: white;
  box-shadow: var(--shadow-cyan);
}
.btn-cyan:hover {
  transform: translateY(-2px);
  background: var(--cyan-deep);
  box-shadow: 0 16px 40px rgba(36,168,228,.45);
}
.btn-ghost {
  background: transparent; color: var(--plum);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--plum);
  background: white;
  transform: translateY(-1px);
}
.btn-on-dark {
  background: rgba(255,255,255,.08); color: white;
  border: 1.5px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
}
.btn-on-dark:hover {
  background: rgba(255,255,255,.14);
  border-color: rgba(255,255,255,.32);
  transform: translateY(-1px);
}
.btn-white {
  background: white; color: var(--plum);
  box-shadow: 0 8px 28px rgba(0,0,0,.18);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 44px rgba(0,0,0,.24);
}
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 18px 34px; font-size: 16px; }

/* WhatsApp icon dot */
.btn .wa-dot { width: 8px; height: 8px; border-radius: 50%; background: #25d366; box-shadow: 0 0 0 0 rgba(37,211,102,.7); animation: pulse 1.8s infinite; }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(37,211,102,.55); }
  70%  { box-shadow: 0 0 0 8px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: white;
  align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
  flex-shrink: 0;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.hamburger span {
  display: block; width: 18px; height: 1.6px; background: var(--plum); border-radius: 2px;
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}
.hamburger.open span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }
@media (max-width: 920px) { .hamburger { display: inline-flex; } }

.mobile-menu {
  position: fixed; top: 72px; left: 0; right: 0; bottom: 0; z-index: 99;
  background: rgba(251,249,254,.98);
  backdrop-filter: blur(20px);
  padding: 24px;
  transform: translateX(100%);
  transition: transform .35s var(--ease);
  overflow-y: auto;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
  display: block;
  padding: 18px 0;
  font-size: 17px; font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--line-soft);
}
.mobile-menu a:last-of-type { border-bottom: none; }
.mobile-menu .btn { margin-top: 24px; width: 100%; }

/* ── HERO ── */
.hero {
  position: relative;
  background: var(--surface-dark);
  color: var(--ink-on-dark);
  padding: clamp(80px, 12vw, 140px) 0 clamp(80px, 12vw, 130px);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: var(--grad-aurora);
  animation: aurora 18s ease-in-out infinite alternate;
}
.hero::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(800px 400px at 50% 0%, rgba(36,168,228,.18), transparent 70%),
    linear-gradient(180deg, rgba(31,20,48,.0) 0%, rgba(31,20,48,.55) 100%);
  pointer-events: none;
}
@keyframes aurora {
  0%   { transform: translate(0,0) scale(1); filter: hue-rotate(0deg); }
  50%  { transform: translate(-2%, 1%) scale(1.04); filter: hue-rotate(8deg); }
  100% { transform: translate(2%, -1%) scale(1.02); filter: hue-rotate(-6deg); }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px;
  background: rgba(36,168,228,.12);
  border: 1px solid rgba(36,168,228,.32);
  border-radius: 999px;
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
  color: #7DD3FC;
  margin-bottom: 22px;
}
.hero-badge .pip { width: 6px; height: 6px; border-radius: 50%; background: #4ADE80; box-shadow: 0 0 0 0 rgba(74,222,128,.6); animation: pulse-green 2s infinite; }
@keyframes pulse-green {
  0%   { box-shadow: 0 0 0 0 rgba(74,222,128,.55); }
  70%  { box-shadow: 0 0 0 7px rgba(74,222,128,0); }
  100% { box-shadow: 0 0 0 0 rgba(74,222,128,0); }
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  color: white;
  font-size: clamp(36px, 5.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}
.hero h1 .accent {
  color: #7DD3FC;
  font-weight: 700;
  font-style: normal;
}
.hero-sub {
  font-size: clamp(15px, 1.7vw, 18px);
  color: rgba(255,255,255,.78);
  line-height: 1.65;
  margin-bottom: 30px;
  max-width: 60ch;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }

.hero-trust {
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.hero-trust-item { display: flex; flex-direction: column; }
.hero-trust-num {
  font-family: var(--font-display);
  font-size: 26px; font-weight: 600;
  color: white; line-height: 1;
}
.hero-trust-num .star { color: #FBBF24; font-size: 18px; }
.hero-trust-label {
  font-size: 11px; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
  color: rgba(255,255,255,.5);
  margin-top: 5px;
}

/* Hero matcher card */
.matcher {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(8px);
  position: relative;
}
.matcher::before {
  content: ''; position: absolute; inset: -1px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(36,168,228,.4), transparent 50%, rgba(167,139,202,.4));
  z-index: -1; opacity: .6;
}
.matcher-title {
  font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: #7DD3FC; margin-bottom: 16px;
}
.matcher-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.matcher select, .matcher .multi {
  width: 100%;
  padding: 13px 36px 13px 14px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  color: white;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  appearance: none;
  cursor: pointer;
  transition: border-color .2s var(--ease), background .2s var(--ease);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%237DD3FC' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
.matcher select:focus, .matcher .multi:focus {
  outline: none;
  border-color: var(--cyan);
  background-color: rgba(255,255,255,.10);
}
.matcher select option { background: var(--surface-darker); color: white; }
.matcher .multi {
  position: relative;
  text-align: left;
  user-select: none;
  /* Don't clip — the dropdown is absolutely positioned inside this. */
}
.matcher .multi > span {
  display: block;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  padding-right: 6px;
}
.matcher-dropdown {
  display: none;
  position: absolute; top: calc(100% + 4px); left: 0; right: 0;
  background: var(--surface-darker);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: var(--radius-sm);
  z-index: 50;
  max-height: 240px; overflow-y: auto;
  padding: 6px;
}
.matcher-dropdown.open { display: block; }
.matcher-opt {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  font-size: 13px; color: white;
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s var(--ease);
}
.matcher-opt:hover { background: rgba(36,168,228,.18); }
.matcher-opt.checked { background: rgba(36,168,228,.22); }
.matcher-opt .check {
  width: 16px; height: 16px; border-radius: 5px;
  border: 1.5px solid rgba(255,255,255,.35);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 800; color: white;
  flex-shrink: 0;
  transition: background .15s var(--ease), border-color .15s var(--ease);
}
.matcher-opt.checked .check { background: var(--cyan); border-color: var(--cyan); }
.matcher-cta {
  width: 100%; margin-top: 8px;
  padding: 14px;
  background: var(--cyan); color: white;
  border-radius: var(--radius-sm);
  font-weight: 700; font-size: 14px; letter-spacing: .01em;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: background .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.matcher-cta:hover { background: var(--cyan-deep); transform: translateY(-1px); box-shadow: 0 10px 28px rgba(36,168,228,.4); }
.matcher-note {
  font-size: 12px; color: rgba(255,255,255,.5);
  margin-top: 12px; text-align: center;
}

/* ── ANNOUNCEMENT BAR ── */
.announce {
  background: var(--grad-cyan);
  color: white;
  text-align: center;
  padding: 11px 16px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .01em;
}
.announce strong { font-weight: 700; }

/* ── TRUST STRIP ── */
.trust-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  padding: 18px 0;
}
.trust-strip-inner {
  display: flex; align-items: center; justify-content: center; gap: clamp(20px, 4vw, 56px); flex-wrap: wrap;
}
.trust-strip-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 500; color: var(--ink-soft);
}
.trust-strip-item svg { color: var(--cyan-deep); flex-shrink: 0; }

/* ── FEATURE GRID (3 col) ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 820px) { .feature-grid { grid-template-columns: 1fr; gap: 16px; } }

.feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature .icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: var(--bg-alt);
  color: var(--plum);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
  font-size: 22px;
  transition: background .3s var(--ease), color .3s var(--ease), transform .3s var(--ease-snap);
}
.feature:hover .icon { background: var(--cyan); color: white; transform: scale(1.06) rotate(-4deg); }
.feature h3 { font-size: 20px; margin-bottom: 10px; line-height: 1.3; }
.feature p { font-size: 15px; color: var(--ink-soft); line-height: 1.6; }

/* ── STEPS (numbered) ── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
}
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }

.step {
  position: relative;
  padding: 36px 28px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  transition: box-shadow .3s var(--ease), transform .3s var(--ease);
}
.step:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.step-num {
  position: absolute; top: -18px; left: 28px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--grad-cyan);
  color: white;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700;
  box-shadow: 0 8px 22px rgba(36,168,228,.32);
}
.step h3 { font-size: 19px; margin: 18px 0 10px; }
.step p { font-size: 15px; color: var(--ink-soft); line-height: 1.6; }

/* ── TUTOR CARDS ── */
.carousel-frame { position: relative; }
.carousel-track {
  display: flex; gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 14px 4px 24px;
  scroll-padding-left: 4px;
  scroll-behavior: smooth;
}
.carousel-track::-webkit-scrollbar { display: none; }

.tutor-card {
  flex: 0 0 360px;
  scroll-snap-align: start;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 26px;
  display: flex; gap: 18px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
@media (max-width: 600px) { .tutor-card { flex: 0 0 86vw; padding: 22px; } }
.tutor-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.tutor-avatar {
  width: 68px; height: 68px; border-radius: 50%;
  font-family: var(--font-display);
  font-size: 22px; font-weight: 600;
  color: white;
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  position: relative;
  background: var(--plum);
  box-shadow: inset 0 0 0 4px rgba(255,255,255,.6), 0 4px 14px rgba(60,36,84,.18);
}
.tutor-avatar.bg-cyan { background: var(--grad-cyan); }
.tutor-avatar.bg-plum { background: var(--grad-cta); }
.tutor-avatar.bg-violet { background: linear-gradient(135deg, #8B5CF6, #6D28D9); }
.tutor-avatar.bg-pink { background: linear-gradient(135deg, #F472B6, #BE185D); }
.tutor-avatar.bg-amber { background: linear-gradient(135deg, #F59E0B, #B45309); }
.tutor-avatar.bg-emerald { background: linear-gradient(135deg, #10B981, #047857); }
.tutor-avatar .ring {
  position: absolute; inset: -4px; border-radius: 50%;
  border: 1.5px solid rgba(36,168,228,.35);
}
.tutor-avatar .exp {
  position: absolute; bottom: -6px; right: -8px;
  background: white;
  color: var(--plum);
  font-size: 10px; font-weight: 800;
  padding: 3px 7px; border-radius: 999px;
  border: 1.5px solid var(--line);
  font-family: var(--font-sans);
  white-space: nowrap;
}
.tutor-info { min-width: 0; flex: 1; }
.tutor-name { font-family: var(--font-display); font-size: 17px; font-weight: 600; color: var(--ink); }
.tutor-role { font-size: 13px; color: var(--cyan-deep); font-weight: 600; margin: 3px 0 10px; }
.tutor-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 10px; }
.tutor-tag {
  font-size: 10.5px; font-weight: 700; letter-spacing: .04em;
  padding: 3px 9px; border-radius: 999px;
  background: var(--bg-alt); color: var(--plum);
}
.tutor-subjects { font-size: 13px; color: var(--ink-soft); line-height: 1.5; margin-bottom: 10px; }
.tutor-subjects strong { color: var(--ink); font-weight: 600; }
.tutor-hl {
  font-size: 12px; color: var(--ink-soft);
  background: var(--bg);
  padding: 9px 12px;
  border-left: 3px solid var(--cyan);
  border-radius: 6px;
  line-height: 1.5;
}

/* ── CAROUSEL CONTROLS ── */
.carousel-controls {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 18px;
  gap: 16px;
}
.carousel-dots { display: flex; gap: 6px; }
.carousel-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--line);
  cursor: pointer; padding: 0;
  transition: all .25s var(--ease);
}
.carousel-dot.active { background: var(--cyan); width: 22px; border-radius: 4px; }
.carousel-dot.on-dark { background: rgba(255,255,255,.18); }
.carousel-dot.on-dark.active { background: #7DD3FC; }
.carousel-arrows { display: flex; gap: 8px; }
.carousel-arrow {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--plum);
  display: inline-flex; align-items: center; justify-content: center;
  transition: all .2s var(--ease);
  font-size: 16px;
}
.carousel-arrow:hover { background: var(--plum); color: white; border-color: var(--plum); transform: scale(1.05); }
.carousel-arrow.on-dark {
  background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.18); color: white;
}
.carousel-arrow.on-dark:hover { background: var(--cyan); border-color: var(--cyan); }
.carousel-hint { font-size: 12px; color: var(--ink-mute); }
.carousel-hint.on-dark { color: rgba(255,255,255,.4); }

/* ── SUBJECT TAGS / PILLS ── */
.pill-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 11px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px; font-weight: 600;
  color: var(--ink);
  transition: all .2s var(--ease);
}
.pill:hover { border-color: var(--cyan); color: var(--cyan-deep); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.pill.featured { background: var(--plum); color: white; border-color: var(--plum); }
.pill.featured:hover { background: var(--plum-mid); border-color: var(--plum-mid); color: white; }
.pill-group { margin-top: 28px; }
.pill-group-label {
  font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--cyan-deep); margin-bottom: 12px;
}

/* ── TESTIMONIAL CARDS ── */
.testi-card {
  flex: 0 0 360px;
  scroll-snap-align: start;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: transform .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
  position: relative;
}
@media (max-width: 600px) { .testi-card { flex: 0 0 86vw; padding: 24px; } }
.testi-card:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(36,168,228,.25);
  transform: translateY(-3px);
}
.testi-card.featured {
  background: linear-gradient(160deg, rgba(36,168,228,.16), rgba(167,139,202,.10));
  border-color: rgba(36,168,228,.30);
}
.testi-stars {
  color: #FBBF24; font-size: 14px; letter-spacing: 2px;
  margin-bottom: 14px;
}
.testi-quote {
  font-family: var(--font-display);
  font-size: 17px; line-height: 1.55;
  color: rgba(255,255,255,.92);
  margin-bottom: 22px;
  font-weight: 400;
}
.testi-quote::before { content: '"'; font-size: 38px; color: #7DD3FC; line-height: 0; vertical-align: -10px; margin-right: 4px; }
.testi-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.testi-name { font-size: 14px; font-weight: 700; color: white; }
.testi-detail { font-size: 12px; color: rgba(255,255,255,.5); margin-top: 3px; }
.testi-detail a { color: rgba(255,255,255,.7); }
.testi-detail a:hover { color: #7DD3FC; }
.testi-grade {
  font-size: 11px; font-weight: 800;
  padding: 4px 11px; border-radius: 999px;
  white-space: nowrap; flex-shrink: 0;
}
.testi-grade.astar { background: linear-gradient(135deg, #FBBF24, #F59E0B); color: #422006; }
.testi-grade.a { background: rgba(36,168,228,.25); color: #7DD3FC; }

/* ── BLOG CARDS ── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 22px;
}
.blog-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  display: flex; flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.blog-thumb {
  height: 160px;
  background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.blog-thumb::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 25% 25%, rgba(36,168,228,.18), transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(167,139,202,.22), transparent 50%);
}
.blog-thumb svg, .blog-thumb .glyph {
  position: relative; z-index: 1;
  font-family: var(--font-display);
  font-size: 56px; font-weight: 700;
  color: var(--plum);
  letter-spacing: -0.04em;
  opacity: .75;
}
.blog-body { padding: 22px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.blog-tag {
  font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--cyan-deep);
}
.blog-title {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 600; color: var(--ink);
  line-height: 1.3;
}
.blog-card:hover .blog-title { color: var(--plum); }
.blog-excerpt { font-size: 13px; color: var(--ink-soft); line-height: 1.6; flex: 1; }
.blog-more {
  font-size: 13px; font-weight: 700; color: var(--cyan-deep);
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 8px;
  transition: gap .2s var(--ease);
}
.blog-card:hover .blog-more { gap: 10px; }

/* ── FAQ ── */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.faq-item.open { border-color: var(--plum-soft); box-shadow: var(--shadow); }
.faq-q {
  width: 100%; text-align: left;
  padding: 22px 24px;
  font-size: 16px; font-weight: 600; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-family: var(--font-sans);
}
.faq-q:hover { color: var(--plum); }
.faq-icon {
  width: 28px; height: 28px; flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg-alt);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--plum);
  transition: transform .3s var(--ease), background .25s var(--ease);
}
.faq-item.open .faq-icon { background: var(--cyan); color: white; transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s var(--ease);
}
.faq-item.open .faq-a { max-height: 600px; }
.faq-a-inner {
  padding: 0 24px 22px;
  font-size: 15px; line-height: 1.7;
  color: var(--ink-soft);
}
.faq-a-inner a { color: var(--cyan-deep); font-weight: 500; border-bottom: 1px solid currentColor; }

/* ── CTA SECTION ── */
.cta-block {
  background: var(--grad-cta);
  color: white;
  text-align: center;
  padding: clamp(64px, 9vw, 110px) 24px;
  position: relative;
  overflow: hidden;
}
.cta-block::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-aurora);
  opacity: .35;
  animation: aurora 18s ease-in-out infinite alternate;
}
.cta-block > * { position: relative; z-index: 1; }
.cta-block h2 { color: white; font-size: clamp(30px, 4vw, 44px); margin-bottom: 18px; max-width: 700px; margin-left: auto; margin-right: auto; }
.cta-block p { color: rgba(255,255,255,.78); max-width: 560px; margin: 0 auto 32px; font-size: 16px; line-height: 1.65; }
.cta-block .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta-block .footnote { margin-top: 22px; font-size: 13px; color: rgba(255,255,255,.55); }

/* ── COMPARISON / TWO COL ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; gap: 32px; } }

.compare-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  border-left: 4px solid var(--line);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.compare-card.bad { border-left-color: #EF4444; }
.compare-card.good { border-left-color: var(--cyan); }
.compare-card .label {
  font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  margin-bottom: 8px;
}
.compare-card.bad .label { color: #EF4444; }
.compare-card.good .label { color: var(--cyan-deep); }
.compare-card p { font-size: 15px; color: var(--ink-soft); line-height: 1.6; }

.benefit-list { display: flex; flex-direction: column; gap: 14px; }
.benefit {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--surface);
  padding: 18px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
.benefit:hover { border-color: var(--plum-soft); transform: translateX(2px); }
.benefit .check-icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--grad-cyan);
  color: white;
  display: inline-flex; align-items: center; justify-content: center;
}
.benefit-text { font-size: 15px; color: var(--ink); line-height: 1.5; font-weight: 500; }
.benefit-text span { display: block; font-size: 13px; color: var(--ink-soft); font-weight: 400; margin-top: 3px; }

/* ── SCARCITY ── */
.scarcity-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.scarcity-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.scarcity-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.scarcity-card .subj { font-size: 15px; font-weight: 700; color: var(--ink); }
.scarcity-card .status {
  font-size: 11px; font-weight: 700; letter-spacing: .04em;
  color: var(--cyan-deep);
  padding: 4px 10px; border-radius: 999px;
  background: rgba(36,168,228,.10);
}
.scarcity-card .status.low { color: #B91C1C; background: rgba(239,68,68,.12); }

/* ── STATS ROW ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 40px;
}
@media (max-width: 760px) { .stats-row { grid-template-columns: 1fr 1fr; gap: 24px; } }
.stat {
  text-align: center;
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.6vw, 52px);
  font-weight: 600;
  background: linear-gradient(135deg, var(--cyan), var(--plum-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  letter-spacing: -0.02em;
  display: block;
}
.bg-plum .stat-num, .bg-darker .stat-num {
  background: linear-gradient(135deg, #7DD3FC, #C9BCD8);
  -webkit-background-clip: text;
  background-clip: text;
}
.stat-label {
  font-size: 12px; font-weight: 600; letter-spacing: .04em;
  color: var(--ink-soft);
  margin-top: 8px;
  display: block;
}
.bg-plum .stat-label, .bg-darker .stat-label { color: rgba(255,255,255,.55); }

/* ── FOOTER ── */
.site-footer {
  background: var(--surface-darker);
  color: rgba(255,255,255,.6);
  padding: clamp(56px, 8vw, 84px) 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
@media (max-width: 820px) { .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 520px) { .footer-top { grid-template-columns: 1fr; } }
.footer-brand img { height: 96px; width: auto; margin-bottom: 18px; }
.footer-brand p {
  font-size: 14px; color: rgba(255,255,255,.45);
  line-height: 1.6; max-width: 320px; margin-bottom: 18px;
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
  display: inline-flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.6);
  transition: all .2s var(--ease);
}
.footer-social a:hover { background: var(--cyan); color: white; border-color: var(--cyan); transform: translateY(-2px); }

.footer-col-title {
  font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: 16px;
}
.footer-col-links { display: flex; flex-direction: column; gap: 10px; }
.footer-col-links a {
  font-size: 13px; color: rgba(255,255,255,.5);
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}
.footer-col-links a:hover { color: #7DD3FC; padding-left: 4px; }

.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.06);
  font-size: 12px;
  color: rgba(255,255,255,.55);
}
.footer-bottom a { color: rgba(255,255,255,.7); }
.footer-bottom a:hover { color: #7DD3FC; }
.footer-bottom p { line-height: 1.7; max-width: 720px; }

/* ── FLOATING WHATSAPP ── */
.wa-float {
  position: fixed; bottom: 22px; right: 22px;
  z-index: 998;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: white;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 12px 28px rgba(37,211,102,.45);
  transition: transform .25s var(--ease-snap), box-shadow .25s var(--ease);
}
.wa-float:hover { transform: scale(1.08); box-shadow: 0 16px 36px rgba(37,211,102,.55); }
.wa-float::before {
  content: ''; position: absolute; inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(37,211,102,.35);
  animation: wa-ping 2.4s cubic-bezier(0,0,.2,1) infinite;
}
@keyframes wa-ping {
  0%   { transform: scale(.8); opacity: .8; }
  80%, 100% { transform: scale(1.5); opacity: 0; }
}

/* ── MOBILE STICKY CTA BAR ── */
.mobile-cta {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 95;
  background: rgba(251,249,254,.96);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  gap: 10px; align-items: center;
}
.mobile-cta .btn { flex: 1; padding: 13px 18px; font-size: 14px; }
@media (max-width: 920px) { .mobile-cta { display: flex; } body { padding-bottom: 76px; } }

/* ── COLLAPSIBLE (mobile-first responsive) ── */
.collapsible-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
  cursor: default;
}
.collapsible-toggle {
  display: none;
  align-items: center; gap: 6px;
  flex-shrink: 0;
  font-size: 12px; font-weight: 600;
  color: var(--cyan-deep);
  background: rgba(36,168,228,.08);
  border: 1px solid rgba(36,168,228,.22);
  padding: 8px 14px; border-radius: 999px;
  transition: all .2s var(--ease);
  margin-top: 6px;
}
.collapsible-toggle svg { width: 12px; height: 12px; transition: transform .25s var(--ease); }
.collapsible.open .collapsible-toggle svg { transform: rotate(180deg); }
.collapsible-toggle .lbl-less { display: none; }
.collapsible.open .collapsible-toggle .lbl-more { display: none; }
.collapsible.open .collapsible-toggle .lbl-less { display: inline; }
/* Desktop: open. Mobile: secondary blocks fold. */
.collapsible-body { overflow: visible; max-height: none; opacity: 1; }
.bg-plum .collapsible-toggle, .bg-darker .collapsible-toggle {
  color: #7DD3FC;
  background: rgba(36,168,228,.10);
  border-color: rgba(36,168,228,.30);
}

@media (max-width: 760px) {
  .collapsible-head { cursor: pointer; user-select: none; }
  .collapsible-toggle { display: inline-flex; }
  .collapsible-body {
    max-height: 0; opacity: 0; overflow: hidden;
    transition: max-height .45s var(--ease), opacity .25s var(--ease);
  }
  .collapsible.open .collapsible-body { max-height: 5000px; opacity: 1; }
}

/* Always-open variant: opens at every viewport */
.collapsible.always-open .collapsible-toggle { display: none !important; }
.collapsible.always-open .collapsible-body { max-height: none !important; opacity: 1 !important; overflow: visible !important; }
.collapsible.always-open .collapsible-head { cursor: default; }

/* ── REVEAL ANIMATIONS ── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in-view { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .08s; }
.reveal-d2 { transition-delay: .16s; }
.reveal-d3 { transition-delay: .24s; }
.reveal-d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0s !important; transition-duration: 0s !important; }
  .reveal { opacity: 1; transform: none; }
  .hero::before { animation: none !important; }
  .cta-block::before { animation: none !important; }
}

/* ── ARTICLE / BLOG TYPOGRAPHY ── */
.article {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(56px, 8vw, 96px) 24px;
}
.article-head { margin-bottom: 40px; }
.article-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--cyan-deep);
  padding: 6px 12px; border-radius: 999px;
  background: rgba(36,168,228,.08);
  margin-bottom: 18px;
}
.article h1 {
  font-size: clamp(30px, 4.6vw, 48px);
  line-height: 1.1;
  margin-bottom: 18px;
}
.article-meta {
  font-size: 13px; color: var(--ink-mute); display: flex; gap: 14px; flex-wrap: wrap;
}
.article-body { font-size: 17px; line-height: 1.75; color: var(--ink); }
.article-body > * + * { margin-top: 1em; }
.article-body h2 { font-size: clamp(24px, 3vw, 32px); margin-top: 1.6em; line-height: 1.2; }
.article-body h3 { font-size: clamp(19px, 2.2vw, 23px); margin-top: 1.4em; }
.article-body p { color: var(--ink); }
.article-body a { color: var(--cyan-deep); border-bottom: 1px solid currentColor; transition: color .2s; }
.article-body a:hover { color: var(--plum); }
.article-body ul, .article-body ol { padding-left: 1.4em; }
.article-body li { margin: .4em 0; }
.article-body blockquote {
  border-left: 4px solid var(--cyan);
  padding: 6px 22px;
  margin: 1.8em 0;
  font-family: var(--font-display); font-size: 19px;
  color: var(--ink-soft);
  background: var(--bg-alt);
  border-radius: 6px;
}
.article-body img { border-radius: var(--radius); margin: 1.4em 0; }
.article-body code {
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  background: var(--bg-alt);
  padding: 2px 7px; border-radius: 4px; font-size: .92em;
}

/* Subject/region landing-page hero (smaller than home) */
.page-hero {
  background: var(--grad-cta);
  color: white;
  padding: clamp(60px, 9vw, 110px) 0 clamp(48px, 7vw, 84px);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-aurora); opacity: .55;
  animation: aurora 20s ease-in-out infinite alternate;
}
.page-hero > .wrap { position: relative; z-index: 1; }
.page-hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  color: white;
  line-height: 1.06;
  margin-bottom: 18px;
  max-width: 16ch;
}
.page-hero .lead { color: rgba(255,255,255,.82); }
.page-hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.page-hero .breadcrumb {
  font-size: 12px; color: rgba(255,255,255,.55);
  margin-bottom: 18px;
  display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
}
.page-hero .breadcrumb a { color: rgba(255,255,255,.7); }
.page-hero .breadcrumb a:hover { color: white; }
.page-hero .breadcrumb span { opacity: .5; }

/* Utilities */
.center { text-align: center; }
.mt-12 { margin-top: 12px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; } .mt-40 { margin-top: 40px; }
.mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; } .mb-32 { margin-bottom: 32px; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; }
.no-select { user-select: none; }