:root {
  --navy-950: #0b1330;
  --navy-900: #0e1a3d;
  --navy-800: #152352;
  --blue-600: #3d5cf5;
  --blue-700: #2f49d6;
  --blue-100: #e7ebff;
  --ink-900: #101425;
  --ink-700: #3a3f55;
  --ink-500: #6b7086;
  --ink-300: #9aa0b4;
  --line: #e7e9f2;
  --bg-soft: #f5f7fb;
  --green: #1fb27a;
  --purple: #7c5cf0;
  --red: #ef5a72;
  --amber: #f5a524;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--ink-900);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img, svg {
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--blue-600);
  outline-offset: 2px;
}

/* ---------- Navbar ---------- */
header.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-text .name {
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.brand-text .tag {
  font-size: 11px;
  color: var(--ink-500);
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-700);
  flex-shrink: 0;
}

.nav-links a {
  position: relative;
  padding: 6px 0;
  transition: color .15s ease;
}

.nav-links a:hover {
  color: var(--ink-900);
}

.nav-links a.active {
  color: var(--blue-600);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -14px;
  height: 2px;
  background: var(--blue-600);
}

.nav-more {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 9px 14px;
  width: 230px;
}

.search-box input {
  border: none;
  background: none;
  outline: none;
  font-size: 13.5px;
  width: 100%;
  color: var(--ink-700);
}

.search-box input::placeholder {
  color: var(--ink-300);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14.5px;
  border-radius: 9px;
  padding: 11px 20px;
  white-space: nowrap;
  transition: transform .12s ease, box-shadow .12s ease, background .15s ease, border-color .15s ease;
}

.btn-primary {
  background: var(--blue-600);
  color: #fff;
  box-shadow: 0 1px 2px rgba(24,39,110,.08);
}

.btn-primary:hover {
  background: var(--blue-700);
}

.btn-outline {
  background: #fff;
  color: var(--ink-900);
  border: 1px solid var(--line);
}

.btn-outline:hover {
  border-color: var(--ink-300);
}

.btn-outline-dark {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.35);
}

.btn-outline-dark:hover {
  border-color: rgba(255,255,255,.7);
}

.btn-sm {
  padding: 9px 16px;
  font-size: 13.5px;
}

/* ========================================================
   ACADLY HERO SECTION (Responsive Study Desk Banner)
   ======================================================== */
.acadly-study-hero {
  position: relative;
  width: 100%;
  min-height: 480px;
  background-color: #071022;
  background-position: right center;
  background-repeat: no-repeat;
  background-size: cover;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #ffffff !important;
}

/* Deep Navy Fade: keeps text legible while revealing the desk image */
.hero-overlay-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(7, 16, 34, 0.98) 0%,
    rgba(7, 16, 34, 0.92) 40%,
    rgba(7, 16, 34, 0.65) 60%,
    rgba(7, 16, 34, 0.15) 85%,
    rgba(7, 16, 34, 0.35) 100%
  );
  z-index: 2;
  pointer-events: none;
}

.hero-content-wrap {
  position: relative;
  z-index: 5 !important;
  width: 100%;
  padding-top: 60px;
  padding-bottom: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-text-col {
  max-width: 580px;
  z-index: 5;
}

/* Rounded Pill Badge */
.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #e2e8f0 !important;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

/* Headline */
.hero-headline {
  color: #ffffff !important;
  font-size: 42px;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.hero-headline .highlight-blue {
  color: #38bdf8 !important;
}

/* Subtitle */
.hero-subtext {
  color: #cbd5e1 !important;
  font-size: 15px;
  line-height: 1.6;
  max-width: 480px;
  margin: 0 0 28px;
}

/* CTA Buttons */
.hero-cta-group {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #2563eb;
  color: #ffffff !important;
  font-size: 14.5px;
  font-weight: 700;
  padding: 12px 22px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.45);
  transition: transform .15s ease, background .15s ease;
}
.btn-hero-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff !important;
  font-size: 14.5px;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 999px;
  text-decoration: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background .15s ease, transform .15s ease;
}
.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-2px);
}

/* Chalk Quote on Dark Wall */
.hero-quote-col {
  display: flex;
  justify-content: flex-end;
  padding-right: 20px;
  z-index: 5;
}
.handwritten-quote {
  font-family: 'Segoe Script', 'Caveat', 'Comic Sans MS', cursive;
  color: #e2e8f0 !important;
  font-size: 15px;
  line-height: 1.45;
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  user-select: none;
}
.handwritten-quote .quote-sub {
  color: #94a3b8 !important;
  font-size: 13.5px;
}

/* ---------- Feature strip ---------- */
.feature-strip {
  border-bottom: 1px solid var(--line);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 32px;
  padding: 40px 32px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.f-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.f-icon.green { background: var(--green); }
.f-icon.purple { background: var(--purple); }
.f-icon.blue { background: var(--blue-600); }
.f-icon.red { background: var(--red); }

.feature-item h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 3px;
}

.feature-item p {
  font-size: 13.5px;
  color: var(--ink-500);
  line-height: 1.4;
}

/* ---------- Section headings ---------- */
.eyebrow {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--blue-600);
  letter-spacing: .02em;
  margin-bottom: 10px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 24px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-size: 29px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.section-head p {
  font-size: 14.5px;
  color: var(--ink-500);
  max-width: 520px;
}

.view-all {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-600);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ---------- University section ---------- */
.uni-section {
  background: var(--bg-soft);
  padding: 64px 32px;
}

.uni-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}

.uni-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.uni-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 600;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink-700);
}

.uni-btn.active {
  background: var(--blue-600);
  color: #fff;
  border-color: var(--blue-600);
}

.uni-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.uni-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--blue-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.uni-card h4 {
  font-size: 15.5px;
  font-weight: 700;
  margin-bottom: 4px;
}

.uni-card p {
  font-size: 13.5px;
  color: var(--ink-500);
  line-height: 1.4;
  margin-bottom: 10px;
}

.uni-card .arrow-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ---------- Category grid ---------- */
.category-section {
  padding: 72px 32px;
}

.cat-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 20px;
}

.cat-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.cat-card:hover {
  border-color: var(--blue-600);
  box-shadow: 0 6px 20px rgba(61,92,245,.08);
}

.cat-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--blue-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.cat-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cat-card p {
  font-size: 13.5px;
  color: var(--ink-500);
  line-height: 1.5;
}

/* ---------- Trending ---------- */
.trending-section {
  padding: 0 32px 76px;
}

.trend-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 20px;
}

.trend-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.trend-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--blue-600);
}

.trend-card h4 {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
}

.trend-card p {
  font-size: 13px;
  color: var(--ink-500);
  line-height: 1.5;
  flex-grow: 1;
}

.trend-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--ink-500);
}

.trend-meta .left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pill-tag {
  padding: 3px 10px;
  border-radius: 7px;
  font-weight: 700;
  font-size: 11.5px;
}

.pill-tag.free {
  background: #e4f7ee;
  color: var(--green);
}

.pill-tag.premium {
  background: #f1ecff;
  color: var(--purple);
}

/* ---------- Premium banner ---------- */
.premium-wrap {
  padding: 0 32px 80px;
}

.premium-banner {
  background: linear-gradient(120deg,var(--navy-950),var(--navy-800));
  border-radius: 18px;
  color: #fff;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 32px;
  padding: 34px 40px;
}

.premium-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.premium-icon {
  width: 46px;
  height: 46px;
  border-radius: 11px;
  background: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.premium-left h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 4px;
}

.premium-left p {
  font-size: 13.5px;
  color: #aeb4d6;
  line-height: 1.4;
}

.premium-checks {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.premium-checks span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: #dfe2f5;
}

.premium-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.premium-right small {
  color: #8b91b5;
  font-size: 12px;
}

/* ---------- Footer ---------- */
footer {
  background: var(--navy-950);
  color: #aeb4d6;
  padding: 48px 32px 26px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-links {
  display: flex;
  gap: 26px;
  font-size: 14px;
  flex-wrap: wrap;
}

.footer-links a:hover {
  color: #fff;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: rgba(255,255,255,.06);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-social a:hover {
  background: rgba(255,255,255,.14);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 22px;
  font-size: 12.5px;
  color: #7b81a3;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- Responsive Breakpoints ---------- */
@media (max-width: 980px) {
  .nav-links, .search-box { display: none; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .uni-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .trend-grid { grid-template-columns: repeat(2, 1fr); }
  .premium-banner { grid-template-columns: 1fr; text-align: left; }
  .premium-right { align-items: flex-start; }
}

@media (max-width: 960px) {
  .acadly-study-hero {
    background-position: 80% center;
    min-height: auto;
  }
  .hero-overlay-gradient {
    background: linear-gradient(
      180deg,
      rgba(7, 16, 34, 0.94) 0%,
      rgba(7, 16, 34, 0.88) 60%,
      rgba(7, 16, 34, 0.70) 100%
    );
  }
  .hero-content-wrap {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 48px;
    padding-bottom: 48px;
    gap: 28px;
  }
  .hero-headline {
    font-size: 32px;
  }
  .hero-quote-col {
    display: none;
  }
}

@media (max-width: 600px) {
  .wrap, .feature-grid, .uni-section, .category-section, .trending-section, .premium-wrap, footer {
    padding-left: 20px;
    padding-right: 20px;
  }
  .hero-headline {
    font-size: 28px;
    line-height: 1.22;
  }
  .hero-subtext {
    font-size: 14px;
    margin-bottom: 22px;
  }
  .hero-cta-group {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }
  .btn-hero-primary,
  .btn-hero-secondary {
    width: 100%;
    justify-content: center;
  }
  .feature-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .trend-grid { grid-template-columns: 1fr; }
  .footer-inner, .footer-bottom { flex-direction: column; align-items: flex-start; }
}