/* ═══════════════════════════════════════════
   ThriveEnglish — style.css (Global Styles)
   ═══════════════════════════════════════════ */

/* ─── Local Fonts (@font-face) ─── */
@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/PlayfairDisplay-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/PlayfairDisplay-Italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/PlayfairDisplay-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Playfair Display';
  src: url('../fonts/PlayfairDisplay-Black.woff2') format('woff2');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/Inter-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Noto Sans Mono';
  src: url('../fonts/NotoSansMono-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Noto Sans Mono';
  src: url('../fonts/NotoSansMono-SemiBold.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ─── Reset ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ─── CSS Variables ─── */
:root {
  --navy:       #0d2b55;
  --gold:       #c9973a;
  --gold-dark:  #b8851e;
  --teal:       #1a7a6e;
  --bg:         #fdf9f3;
  --white:      #ffffff;
  --text:       #1c1c1e;
  --light-grey: #f4f6f9;
  --border:     #e8e8e8;

  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'Noto Sans Mono', 'Courier New', monospace;

  --nav-height:       72px;
  --max-width:        1200px;
  --radius-btn:       24px;
  --radius-card:      12px;
  --shadow-card:      0 2px 16px rgba(0,0,0,0.07);
  --shadow-card-hover:0 8px 32px rgba(0,0,0,0.13);
  --transition:       0.2s ease;
}

/* ─── Base ─── */
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

img { max-width: 100%; height: auto; display: block; }

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

ul, ol { list-style: none; }

button { font-family: var(--font-body); }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* ─── Typography ─── */
h1, h2, h3, h4, h5 {
  font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
  line-height: 1.2;
  font-weight: 700;
}

code, .ipa, .phoneme-symbol, .pattern-spelling {
  font-family: 'Noto Sans Mono', 'Courier New', monospace;
}

h1 { font-size: 48px; }
h2 { font-size: 32px; margin-bottom: 24px; }
h3 { font-size: 22px; margin-bottom: 12px; }

/* ─── Layout ─── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section    { padding: 80px 0; }
.section-sm { padding: 60px 0; }

.text-center { text-align: center; }

.section-label {
  display: block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}

/* ─── Grid Utilities ─── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ─── Background Utilities ─── */
.bg-navy  { background-color: var(--navy); }
.bg-white { background-color: var(--white); }
.bg-light { background-color: var(--light-grey); }
.bg-cream { background-color: var(--bg); }

/* ═══════════════════════════════════
   NAVBAR
   ═══════════════════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 2px 24px rgba(0,0,0,0.10);
  border-bottom-color: transparent;
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  flex-shrink: 0;
  line-height: 1;
  display: flex;
  align-items: center;
  /* fallback text styles if SVG fails to load */
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
}

.nav-logo img {
  display: block;
  height: 48px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex: 1;
  justify-content: center;
}

.nav-links li { display: flex; }

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding-bottom: 3px;
  position: relative;
  white-space: nowrap;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 2px;
  background: var(--gold);
  transition: width var(--transition);
}

.nav-links a:hover { color: var(--navy); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-links a.active {
  color: var(--navy);
  font-weight: 600;
}

/* Mobile CTA inside nav overlay — hidden on desktop */
.nav-links .nav-mobile-cta { display: none; }

.nav-cta {
  flex-shrink: 0;
  font-size: 14px !important;
  padding: 10px 18px !important;
}

/* ─── Hamburger ─── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  z-index: 1001;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
  background: var(--white);
}
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
  background: var(--white);
}

/* ═══════════════════════════════════
   BUTTONS
   ═══════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
  transition: background-color var(--transition), border-color var(--transition),
              color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn-primary {
  background: var(--gold);
  color: var(--white);
  border-color: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(201,151,58,0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-secondary:hover {
  background: var(--navy);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.75);
}
.btn-outline-white:hover {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
  transform: translateY(-1px);
}

.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-full { width: 100%; display: flex; }

/* ═══════════════════════════════════
   CARDS
   ═══════════════════════════════════ */
.card {
  background: var(--white);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  padding: 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

/* ═══════════════════════════════════
   FOOTER
   ═══════════════════════════════════ */
.footer {
  background: var(--navy);
  color: var(--white);
  padding: 60px 0 32px;
  text-align: center;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.footer-brand { margin-bottom: 32px; }

.footer-logo {
  display: block;
  margin-bottom: 8px;
  /* fallback text styles if SVG fails to load */
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
}

.footer-logo img {
  display: block;
  height: 56px;
  width: auto;
}

.footer-tagline {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  font-style: italic;
  margin: 0;
}

.footer-links-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 28px;
  margin-bottom: 32px;
}

.footer-links-row a {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}
.footer-links-row a:hover { color: var(--gold); }

.footer-social {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-bottom: 40px;
}

.footer-social a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.8);
  transition: all var(--transition);
}

.footer-social a:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.footer-social svg { display: block; }

.footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-bottom: 24px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  text-align: left;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin: 0;
}

.footer-legal { display: flex; gap: 20px; flex-wrap: wrap; }

.footer-legal a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-legal a:hover { color: var(--gold); }

/* ═══════════════════════════════════
   FADE-IN ANIMATIONS
   ═══════════════════════════════════ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

/* ═══════════════════════════════════
   RESPONSIVE — GLOBAL
   ═══════════════════════════════════ */
@media (max-width: 1199px) {
  .nav-links { gap: 20px; }
  h1 { font-size: 40px; }
}

@media (max-width: 767px) {
  h1 { font-size: 32px; }
  h2 { font-size: 24px; }
  h3 { font-size: 20px; }

  /* Show hamburger, hide desktop nav */
  .hamburger { display: flex; }
  .nav-cta   { display: none; }

  /* Mobile full-screen nav overlay */
  .nav-links {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--navy);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 80px 24px 48px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }
  .nav-links.open { opacity: 1; visibility: visible; }

  .nav-links li { width: 100%; justify-content: center; }

  .nav-links a {
    font-size: 26px;
    color: var(--white);
    font-family: var(--font-heading);
    padding: 10px 0;
    display: block;
    text-align: center;
  }
  .nav-links a::after  { display: none; }
  .nav-links a:hover,
  .nav-links a.active  { color: var(--gold); }

  .nav-links .nav-mobile-cta {
    display: flex;
    justify-content: center;
    margin-top: 20px;
  }
  .nav-links .nav-mobile-cta a { font-size: 15px !important; }

  /* Grids */
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }

  .section    { padding: 60px 0; }
  .section-sm { padding: 40px 0; }

  /* Footer */
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  .footer-legal  { justify-content: center; }
}