/* ============================================================
   BUYE — Brush Up Your English
   Design tokens
   ============================================================ */
:root {
  --paper: #EEF1EA;
  --paper-deep: #E4E8DE;
  --card: #FFFFFF;
  --ink: #17223B;
  --ink-soft: #4B5769;
  --ink-faint: #8891A0;
  --marker: #E2A63B;
  --marker-soft: #F6DFAF;
  --pen: #B23A2E;
  --pen-soft: #F0D9D5;
  --line: #D6D9CE;
  --wa-green: #25D366;

  --display: "Fraunces", "Georgia", serif;
  --body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --hand: "Caveat", cursive;

  --radius: 14px;
  --container: 1140px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* Notebook rule texture on the page background */
body {
  background-image:
    linear-gradient(var(--paper), var(--paper)),
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 43px,
      rgba(23,34,59,0.045) 44px
    );
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(238,241,234,0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.55rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}
.logo .tag {
  font-family: var(--body);
  font-weight: 500;
  font-size: 0.72rem;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

nav.primary-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
nav.primary-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
}
nav.primary-nav a:hover { color: var(--ink); }
nav.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--marker);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
nav.primary-nav a:hover::after { transform: scaleX(1); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 11px 22px;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease;
  cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover { box-shadow: 0 6px 18px rgba(23,34,59,0.25); }
.btn-whatsapp {
  background: var(--wa-green);
  color: #0b3d20;
}
.btn-whatsapp:hover { box-shadow: 0 6px 18px rgba(37,211,102,0.35); }
.btn-outline {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: 96px 0 88px;
  position: relative;
  overflow: hidden;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  font-family: var(--hand);
  font-size: 1.35rem;
  color: var(--pen);
  transform: rotate(-2deg);
  display: inline-block;
  margin-bottom: 6px;
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(2.5rem, 4.4vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 26px;
  font-weight: 600;
  color: var(--ink);
}

.hero h1 .pen-mark {
  text-decoration: underline;
  text-decoration-style: wavy;
  text-decoration-color: var(--pen);
  text-decoration-thickness: 3px;
  text-underline-offset: 8px;
}

.hero p.lede {
  font-size: 1.18rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 34px;
}

.hero .cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.hero .trust-row {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  flex-direction: column;
}
.trust-item strong {
  font-family: var(--display);
  font-size: 1.5rem;
  color: var(--ink);
}
.trust-item span {
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Hero notebook card visual */
.hero-visual {
  position: relative;
}
.notebook-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: 0 24px 60px -20px rgba(23,34,59,0.28);
  transform: rotate(1.5deg);
  border: 1px solid var(--line);
  position: relative;
}
.notebook-card::before {
  content: "";
  position: absolute;
  top: 0; left: 34px; bottom: 0;
  width: 1px;
  background: var(--pen-soft);
}
.notebook-card .margin-note {
  font-family: var(--hand);
  color: var(--pen);
  font-size: 1.1rem;
  position: absolute;
  top: -18px;
  right: 22px;
  transform: rotate(-4deg);
}
.notebook-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0 11px 30px;
  border-bottom: 1px dashed var(--line);
  font-size: 0.98rem;
}
.notebook-line:last-child { border-bottom: none; }
.notebook-line .price {
  margin-left: auto;
  font-weight: 700;
  color: var(--ink);
  font-family: var(--display);
}
.notebook-line .strike {
  text-decoration: line-through;
  color: var(--ink-faint);
  font-weight: 400;
  margin-right: 6px;
}
.notebook-line .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--marker);
  flex-shrink: 0;
}

/* ============================================================
   Section shared
   ============================================================ */
section { padding: 88px 0; }
.section-head {
  max-width: 640px;
  margin: 0 0 48px;
}
.section-head .kicker {
  font-family: var(--hand);
  color: var(--pen);
  font-size: 1.2rem;
  transform: rotate(-1.5deg);
  display: inline-block;
  margin-bottom: 4px;
}
.section-head h2 {
  font-family: var(--display);
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.section-head p {
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin: 0;
}

/* ============================================================
   Segments (4 audiences)
   ============================================================ */
.segments-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.segment-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 28px 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.segment-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(23,34,59,0.25);
}

.segment-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.tab-students { background: #DDE8E2; color: #285C46; }
.tab-professionals { background: #E3E1F5; color: #443C8C; }
.tab-educators { background: var(--marker-soft); color: #8A5A16; }
.tab-teams { background: var(--pen-soft); color: #8A2E24; }

.segment-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--paper-deep);
}
.segment-icon svg { width: 22px; height: 22px; }

.segment-card h3 {
  font-family: var(--display);
  font-size: 1.32rem;
  margin: 0;
  line-height: 1.25;
}
.segment-card p.desc {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin: -8px 0 0;
}

.segment-list {
  list-style: none;
  margin: 0; padding: 0;
  font-size: 0.88rem;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}
.segment-list li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
  color: var(--ink-soft);
}
.segment-list li b { color: var(--ink); font-weight: 600; }
.segment-list .amt { font-family: var(--display); color: var(--ink); white-space: nowrap; }

.segment-from {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.segment-from .label { font-size: 0.78rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.04em; }
.segment-from .val { font-family: var(--display); font-size: 1.2rem; color: var(--ink); }

.segment-card .btn { justify-content: center; width: 100%; }

/* ============================================================
   Why BUYE strip
   ============================================================ */
.why {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.why-item {
  position: relative;
  padding-left: 18px;
}
.why-item::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 3px;
  background: var(--marker);
  border-radius: 2px;
}
.why-item h4 {
  font-family: var(--display);
  font-size: 1.1rem;
  margin: 0 0 6px;
}
.why-item p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin: 0;
}

/* ============================================================
   All-access banner
   ============================================================ */
.membership {
  background: var(--ink);
  color: var(--paper);
  border-radius: 20px;
  padding: 44px 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.membership h3 {
  font-family: var(--display);
  font-size: 1.7rem;
  margin: 0 0 8px;
}
.membership p {
  margin: 0;
  color: #C6CCDA;
  max-width: 46ch;
}
.membership .price-tag {
  font-family: var(--display);
  font-size: 2.1rem;
  white-space: nowrap;
}
.membership .price-tag span {
  font-size: 0.95rem;
  font-family: var(--body);
  color: #98A2B8;
  display: block;
  font-weight: 400;
}
.membership .btn-primary {
  background: var(--marker);
  color: #3a2a05;
}

/* ============================================================
   Contact
   ============================================================ */
.contact {
  position: relative;
}
.contact .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}
.contact-copy .section-head { margin-bottom: 28px; }

.sticky-note {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: 0 20px 50px -25px rgba(23,34,59,0.3);
  padding: 34px;
  transform: rotate(-1deg);
}
.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
  text-decoration: none;
  color: var(--ink);
}
.contact-row:last-child { border-bottom: none; }
.contact-row .ico {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--paper-deep);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-row .ico svg { width: 22px; height: 22px; }
.contact-row .meta { display: flex; flex-direction: column; }
.contact-row .meta .label { font-size: 0.78rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.04em; }
.contact-row .meta .value { font-weight: 600; font-size: 1.05rem; }
.contact-row .go {
  margin-left: auto;
  color: var(--ink-faint);
  font-size: 1.2rem;
}
.contact-row:hover .go { color: var(--pen); }

/* Floating WhatsApp button */
.wa-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 60;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--wa-green);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px -6px rgba(11,61,32,0.5);
  transition: transform .15s ease;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 28px; height: 28px; }

/* ============================================================
   Footer
   ============================================================ */
footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
}
footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
footer .foot-logo {
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.1rem;
}
footer .foot-links {
  display: flex;
  gap: 22px;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
footer .foot-links a { text-decoration: none; }
footer .foot-links a:hover { color: var(--ink); }
footer .copyright {
  font-size: 0.8rem;
  color: var(--ink-faint);
  width: 100%;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  margin-top: 8px;
}

/* ============================================================
   Reveal on scroll
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .segments-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .contact .wrap { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  nav.primary-nav { display: none; }
  .nav-toggle { display: block; }
  .site-header.nav-open nav.primary-nav {
    display: flex;
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: var(--paper);
    flex-direction: column;
    padding: 20px 28px 28px;
    border-bottom: 1px solid var(--line);
    gap: 18px;
  }
  .segments-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .membership { flex-direction: column; align-items: flex-start; }
  .hero { padding: 56px 0 60px; }
  section { padding: 56px 0; }
}

/* ============================================================
   BUYE-ONLINE MODERN BRAND THEME
   Added as an override layer — original site content preserved.
   ============================================================ */
:root {
  --paper: #FFF9E7;
  --paper-deep: #F2F5EE;
  --card: #FFFFFF;
  --ink: #10175B;
  --ink-soft: #59627A;
  --ink-faint: #8A91A4;
  --marker: #FF8A3D;
  --marker-soft: #FFE2CF;
  --pen: #10B981;
  --pen-soft: #D7F7EA;
  --line: #DCE3DA;
  --wa-green: #25D366;
}

body {
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 8% 12%, rgba(16,185,129,.09) 0 70px, transparent 71px),
    radial-gradient(circle at 94% 24%, rgba(255,138,61,.10) 0 90px, transparent 91px),
    linear-gradient(rgba(255,249,231,.96), rgba(255,249,231,.96)),
    repeating-linear-gradient(to bottom, transparent 0, transparent 43px, rgba(16,23,91,.035) 44px);
}

.site-header {
  background: rgba(255,249,231,.90);
  border-bottom-color: rgba(16,23,91,.10);
  box-shadow: 0 8px 30px rgba(16,23,91,.06);
}

.site-header .wrap { height: 82px; }

.logo {
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--display);
}

.buye-logo-img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 15px;
  box-shadow: 0 8px 22px rgba(16,23,91,.14);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-text > .tag {
  margin-top: 5px;
}

nav.primary-nav a:hover { color: var(--ink); }
nav.primary-nav a::after { background: var(--marker); }

.btn-primary {
  background: linear-gradient(135deg, #10175B, #202A86);
  color: #fff;
  box-shadow: 0 9px 22px rgba(16,23,91,.14);
}
.btn-primary:hover {
  box-shadow: 0 12px 28px rgba(16,23,91,.22);
}

.btn-outline {
  border-color: var(--ink);
  background: rgba(255,255,255,.55);
}

.btn-whatsapp {
  background: var(--wa-green);
  box-shadow: 0 7px 20px rgba(37,211,102,.18);
}

.hero {
  padding: 105px 0 96px;
  background:
    radial-gradient(circle at 78% 42%, rgba(16,185,129,.12), transparent 30%),
    radial-gradient(circle at 92% 5%, rgba(255,138,61,.12), transparent 22%);
}

.hero h1 {
  color: var(--ink);
  font-weight: 700;
}

.hero h1 .pen-mark {
  text-decoration-color: var(--marker);
}

.eyebrow,
.section-head .kicker {
  color: var(--pen);
}

.hero p.lede,
.section-head p { color: var(--ink-soft); }

.notebook-card {
  border: 1px solid rgba(16,23,91,.10);
  border-top: 5px solid var(--pen);
  box-shadow: 0 28px 70px -25px rgba(16,23,91,.28);
}

.notebook-card::before { background: var(--marker-soft); }
.notebook-card .margin-note { color: var(--marker); }
.notebook-line .dot { background: var(--marker); }

.segments-grid { gap: 24px; }

.segment-card {
  border-color: rgba(16,23,91,.10);
  border-radius: 20px;
  box-shadow: 0 8px 28px rgba(16,23,91,.045);
  position: relative;
  overflow: hidden;
}

.segment-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(to bottom, var(--pen), var(--marker));
  opacity: .9;
}

.segment-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -22px rgba(16,23,91,.28);
}

.tab-students { background: #D7F7EA; color: #087B56; }
.tab-professionals { background: #E3E5FF; color: #303A91; }
.tab-educators { background: #FFE9B9; color: #85570A; }
.tab-teams { background: #FFE0D7; color: #8C3025; }

.segment-from .val { color: var(--ink); }

.why {
  background: linear-gradient(135deg, #EEF7F2, #F4F5FC);
  border-color: var(--line);
}

.why-item::before { background: var(--pen); }

.membership {
  background: linear-gradient(120deg, #10175B, #1B2780 65%, #087B56);
  box-shadow: 0 25px 55px -25px rgba(16,23,91,.38);
}

.membership .btn-primary {
  background: var(--marker);
  color: #301800;
  box-shadow: none;
}

.sticky-note {
  border-top: 5px solid var(--marker);
  box-shadow: 0 25px 55px -25px rgba(16,23,91,.28);
}

.contact-row:hover .go { color: var(--pen); }

.wa-float {
  background: var(--wa-green);
  box-shadow: 0 12px 30px rgba(37,211,102,.28);
}

footer {
  background: #0B1048;
  color: #fff;
  border-top: 0;
}

footer .copyright { border-color: rgba(255,255,255,.15); }
footer .foot-links { color: rgba(255,255,255,.68); }
footer .foot-links a:hover { color: #fff; }

@media (max-width: 720px) {
  .site-header .wrap { height: 74px; }
  .buye-logo-img { width: 45px; height: 45px; }
  .logo-text { font-size: 1.3rem; }
  .logo-text .tag { font-size: .58rem; }
  .site-header.nav-open nav.primary-nav {
    top: 74px;
    background: rgba(255,249,231,.98);
    box-shadow: 0 18px 30px rgba(16,23,91,.10);
  }
}