/* =============================================
   BAMBOO MAY MOON - style.css
   Prefix: bi-
   Palette: Warm Cream / Forest Green / Aged Gold
   ============================================= */

/* ---- CUSTOM PROPERTIES ---- */
:root {
  --bg: #F7F4EF;
  --bg-alt: #EEE9E0;
  --text: #1C2B1A;
  --text-muted: #5A6858;
  --text-light: #8A9488;
  --accent: #8B6914;
  --accent-light: #C49A2A;
  --green: #4A7C59;
  --green-light: #6BA882;
  --outline: rgba(28,43,26,0.14);
  --outline-med: rgba(28,43,26,0.28);
  --outline-strong: rgba(28,43,26,0.55);
  --shadow-sm: 0 1px 3px rgba(28,43,26,0.06), 0 2px 8px rgba(28,43,26,0.04);
  --shadow-md: 0 4px 12px rgba(28,43,26,0.08), 0 8px 28px rgba(28,43,26,0.06), 0 1px 3px rgba(28,43,26,0.04);
  --shadow-lg: 0 8px 24px rgba(28,43,26,0.10), 0 20px 48px rgba(28,43,26,0.08), 0 2px 6px rgba(28,43,26,0.05);
  --shadow-float: 0 16px 40px rgba(28,43,26,0.12), 0 6px 16px rgba(28,43,26,0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --nav-h: 68px;
  --transition: 0.28s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.45s cubic-bezier(0.16,1,0.3,1);
}

/* ---- RESET & BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Figtree', sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
address { font-style: normal; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---- CURSOR TRAIL ---- */
.bi-cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transform: translate(-50%,-50%);
  transition: transform 0.12s ease-out, opacity 0.3s ease;
  box-shadow: 0 0 14px rgba(139,105,20,0.5), 0 0 28px rgba(139,105,20,0.2);
  mix-blend-mode: multiply;
}
.bi-cursor-dot.bi-cursor-dot--visible { opacity: 0.85; }

/* ---- CONTAINER ---- */
.bi-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- TYPOGRAPHY ---- */
h1, h2, h3, h4 { font-family: 'Literata', serif; line-height: 1.2; color: var(--text); }

.bi-section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(139,105,20,0.35);
  border-radius: 100px;
  padding: 5px 14px;
  margin-bottom: 16px;
  background: rgba(139,105,20,0.05);
}

.bi-section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.bi-section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}

.bi-section-header { margin-bottom: 56px; }
.bi-section-header--center { text-align: center; }
.bi-section-header--center .bi-section-sub { margin: 0 auto; }

/* ---- BUTTONS ---- */
.bi-btn-outline,
.bi-btn-solid {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: 'Figtree', sans-serif;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
}

.bi-btn-outline {
  border: 1.5px solid var(--outline-strong);
  color: var(--text);
  background: transparent;
}
.bi-btn-outline:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.bi-btn-solid {
  background: var(--text);
  color: var(--bg);
  border: 1.5px solid var(--text);
}
.bi-btn-solid:hover {
  background: var(--green);
  border-color: var(--green);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.bi-btn-accent {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #fff !important;
}
.bi-btn-accent:hover {
  background: #a07818 !important;
  border-color: #a07818 !important;
}

.bi-btn-lg { padding: 15px 36px; font-size: 1rem; border-radius: var(--radius-lg); }
.bi-btn-full { width: 100%; justify-content: center; }

/* ---- NAV ---- */
.bi-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  transform: translateY(-100%);
  transition: transform 0.42s cubic-bezier(0.16,1,0.3,1);
  background: rgba(247,244,239,0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--outline);
  height: var(--nav-h);
}
.bi-nav.bi-nav--visible { transform: translateY(0); }

.bi-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.bi-nav-logo {
  font-family: 'Literata', serif;
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.bi-nav-logo span { color: var(--accent); }

.bi-nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.bi-nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
}
.bi-nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 12px; right: 12px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.bi-nav-link:hover { color: var(--text); }
.bi-nav-link:hover::after { transform: scaleX(1); }

.bi-nav-cta { padding: 9px 20px; font-size: 0.88rem; margin-left: 8px; }

.bi-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.bi-hamburger:hover { background: var(--outline); }
.bi-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- MOBILE MENU ---- */
.bi-mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28,43,26,0.4);
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
  backdrop-filter: blur(2px);
}
.bi-mobile-overlay.bi-overlay--open {
  opacity: 1;
  pointer-events: auto;
}

.bi-mobile-panel {
  position: fixed;
  top: 0; left: 0;
  width: 80%;
  max-width: 320px;
  height: 100dvh;
  background: #F0EBE1;
  z-index: 1001;
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  padding: 24px;
  border-right: 1px solid var(--outline-med);
  box-shadow: var(--shadow-float);
}
.bi-mobile-panel.bi-panel--open { transform: translateX(0); }

.bi-mobile-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.bi-mobile-close {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--outline-med);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  color: var(--text);
  transition: all var(--transition);
}
.bi-mobile-close:hover { background: var(--text); color: var(--bg); }

.bi-mobile-links {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bi-mobile-link {
  display: block;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition);
  opacity: 0;
  transform: translateX(-12px);
}
.bi-mobile-link:hover {
  border-color: var(--outline-med);
  background: rgba(28,43,26,0.04);
}
.bi-panel--open .bi-mobile-link {
  opacity: 1;
  transform: translateX(0);
}
.bi-panel--open .bi-mobile-links li:nth-child(1) .bi-mobile-link { transition-delay: 0.08s; }
.bi-panel--open .bi-mobile-links li:nth-child(2) .bi-mobile-link { transition-delay: 0.13s; }
.bi-panel--open .bi-mobile-links li:nth-child(3) .bi-mobile-link { transition-delay: 0.18s; }
.bi-panel--open .bi-mobile-links li:nth-child(4) .bi-mobile-link { transition-delay: 0.23s; }
.bi-panel--open .bi-mobile-links li:nth-child(5) .bi-mobile-link { transition-delay: 0.28s; }

.bi-mobile-cta { margin-top: 24px; justify-content: center; }

/* ---- HERO ---- */
.bi-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 80px 24px 60px;
}

.bi-hero-bg {
  position: absolute; inset: 0;
  background: var(--bg);
}

.bi-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--outline) 1px, transparent 1px),
    linear-gradient(90deg, var(--outline) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.5;
}

.bi-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.bi-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--green);
  border: 1px solid rgba(74,124,89,0.3);
  border-radius: 100px;
  padding: 6px 14px;
  margin-bottom: 24px;
}
.bi-hero-tag i { font-size: 0.75rem; }

.bi-hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}
.bi-hero-title em {
  font-style: normal;
  color: var(--accent);
  position: relative;
}
.bi-hero-title em::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 2px;
}

.bi-hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 460px;
}

.bi-hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.bi-hero-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.bi-hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.87rem;
  color: var(--text-muted);
}
.bi-hero-meta-item i { color: var(--green); font-size: 0.8rem; }

/* Hero Visual */
.bi-hero-visual { position: relative; }

.bi-hero-img-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--outline-med);
  box-shadow: var(--shadow-float);
  aspect-ratio: 4/5;
}

.bi-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.bi-hero-img-frame:hover .bi-hero-img { transform: scale(1.03); }

.bi-hero-img-badge {
  position: absolute;
  bottom: 24px; left: 24px;
  background: rgba(247,244,239,0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--outline-med);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: var(--shadow-md);
}
.bi-badge-line {
  font-family: 'Literata', serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}
.bi-badge-accent { color: var(--accent); }

.bi-hero-float-card {
  position: absolute;
  top: 32px; right: -28px;
  background: var(--bg);
  border: 1px solid var(--outline-med);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 2;
  animation: floatCard 3s ease-in-out infinite;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.bi-hero-float-card i {
  font-size: 1.4rem;
  color: var(--green);
  flex-shrink: 0;
}
.bi-hero-float-card div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.bi-hero-float-card strong {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}
.bi-hero-float-card span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ---- ABOUT ---- */
.bi-about {
  padding: 100px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--outline);
  border-bottom: 1px solid var(--outline);
}

.bi-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.bi-about-img-stack { position: relative; }

.bi-about-img-main {
  width: 100%;
  border-radius: var(--radius-xl);
  border: 1px solid var(--outline-med);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/5;
  object-fit: cover;
}

.bi-about-img-secondary {
  position: absolute;
  bottom: -32px; right: -32px;
  width: 55%;
  border-radius: var(--radius-lg);
  border: 3px solid var(--bg);
  box-shadow: var(--shadow-float);
  aspect-ratio: 4/3;
  object-fit: cover;
}

.bi-about-accent-box {
  position: absolute;
  top: 32px; left: -20px;
  background: var(--text);
  color: var(--bg);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  z-index: 2;
}
.bi-about-accent-box i { color: var(--accent-light); font-size: 1rem; }

.bi-about-text-col { padding-bottom: 32px; }

.bi-about-lead {
  font-size: 1.15rem;
  color: var(--text);
  line-height: 1.7;
  font-weight: 500;
  margin-bottom: 16px;
  border-left: 3px solid var(--accent);
  padding-left: 20px;
}

.bi-about-body {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 12px;
}

.bi-about-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.bi-pillar {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid var(--outline);
  border-radius: var(--radius-md);
  background: var(--bg);
  transition: all var(--transition);
}
.bi-pillar:hover {
  border-color: var(--outline-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.bi-pillar > i {
  font-size: 1rem;
  color: var(--green);
  margin-top: 3px;
  flex-shrink: 0;
}
.bi-pillar div { display: flex; flex-direction: column; gap: 3px; }
.bi-pillar strong { font-size: 0.88rem; font-weight: 600; color: var(--text); }
.bi-pillar span { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5; }

/* ---- COURSES ---- */
.bi-courses { padding: 100px 0; }

.bi-course-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.bi-course-card {
  border: 1.5px solid var(--outline-med);
  border-radius: var(--radius-xl);
  background: transparent;
  overflow: hidden;
  position: relative;
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
}
.bi-course-card:hover {
  border-color: var(--outline-strong);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.bi-course-card--featured {
  border-color: var(--accent);
  background: linear-gradient(160deg, rgba(139,105,20,0.04) 0%, rgba(247,244,239,0) 50%);
  box-shadow: var(--shadow-md);
}
.bi-course-card--featured:hover {
  box-shadow: 0 12px 32px rgba(139,105,20,0.15), 0 4px 12px rgba(139,105,20,0.10);
}

.bi-course-featured-badge {
  position: absolute;
  top: 20px; right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 100px;
}

.bi-course-card-header {
  padding: 36px 32px 24px;
  border-bottom: 1px solid var(--outline);
}

.bi-course-icon {
  width: 48px; height: 48px;
  border: 1.5px solid var(--outline-med);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.2rem;
  color: var(--green);
  transition: all var(--transition);
}
.bi-course-card--featured .bi-course-icon {
  border-color: rgba(139,105,20,0.35);
  color: var(--accent);
}
.bi-course-card:hover .bi-course-icon {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.bi-course-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.bi-course-sub {
  font-size: 0.87rem;
  color: var(--text-muted);
}

.bi-course-card-body {
  padding: 24px 32px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.bi-course-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.bi-course-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text);
}
.bi-course-features li i {
  font-size: 0.75rem;
  color: var(--green);
  flex-shrink: 0;
  width: 14px;
}
.bi-course-card--featured .bi-course-features li i { color: var(--accent); }

.bi-feature-muted { opacity: 0.4; }
.bi-feature-muted i { color: var(--text-light) !important; }

/* ---- COMPARE TABLE ---- */
.bi-compare-wrap {
  background: var(--bg-alt);
  border: 1px solid var(--outline-med);
  border-radius: var(--radius-xl);
  padding: 40px;
  overflow: hidden;
}

.bi-compare-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}

.bi-table-scroll { overflow-x: auto; }

.bi-compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
  min-width: 520px;
}

.bi-compare-table th,
.bi-compare-table td {
  padding: 14px 20px;
  text-align: center;
  border-bottom: 1px solid var(--outline);
}

.bi-compare-table thead th {
  font-family: 'Literata', serif;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  border-bottom: 2px solid var(--outline-med);
}

.bi-th-feature { text-align: left; }
.bi-td-feature { text-align: left; color: var(--text-muted); font-weight: 500; }

.bi-th-featured {
  background: rgba(139,105,20,0.06) !important;
  color: var(--accent) !important;
  position: relative;
}
.bi-td-featured {
  background: rgba(139,105,20,0.04);
  font-weight: 500;
}
.bi-rec-tag {
  display: inline-block;
  font-size: 0.65rem;
  background: var(--accent);
  color: #fff;
  padding: 2px 8px;
  border-radius: 100px;
  margin-left: 6px;
  vertical-align: middle;
  font-family: 'Figtree', sans-serif;
  font-weight: 600;
}

.bi-compare-table tbody tr:hover td { background: rgba(28,43,26,0.025); }
.bi-compare-table tbody tr:last-child td { border-bottom: none; }

.bi-check { color: var(--green) !important; font-size: 1rem !important; }
.bi-cross { color: var(--text-light) !important; font-size: 0.9rem !important; opacity: 0.5; }

/* ---- TECHNIQUES / TABS ---- */
.bi-techniques {
  padding: 100px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--outline);
  border-bottom: 1px solid var(--outline);
}

.bi-techniques .bi-section-header { max-width: 500px; }

.bi-tabs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: start;
}

.bi-tabs-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: sticky;
  top: calc(var(--nav-h) + 20px);
}

.bi-tab-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1.5px solid var(--outline);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  text-align: left;
  transition: all var(--transition);
  cursor: pointer;
}
.bi-tab-btn i {
  font-size: 0.95rem;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  transition: color var(--transition);
}
.bi-tab-btn:hover {
  border-color: var(--outline-strong);
  color: var(--text);
  background: rgba(28,43,26,0.03);
}
.bi-tab-btn--active {
  border-color: var(--accent);
  background: rgba(139,105,20,0.05);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.bi-tab-btn--active i { color: var(--accent); }

.bi-tabs-content { min-height: 420px; }

.bi-tab-panel {
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  animation: tabFadeIn 0.35s ease;
}
.bi-tab-panel--active { display: grid; }

@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.bi-tab-visual {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--outline-med);
  box-shadow: var(--shadow-md);
  aspect-ratio: 4/3;
}
.bi-tab-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.bi-tab-visual:hover img { transform: scale(1.04); }

.bi-tab-icon-lg {
  width: 56px; height: 56px;
  border: 1.5px solid var(--outline-med);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--green);
  margin-bottom: 20px;
}

.bi-tab-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.bi-tab-desc {
  font-size: 0.97rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}

.bi-tab-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.bi-tab-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text);
  padding: 8px 12px;
  border: 1px solid var(--outline);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.bi-tab-list li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.bi-tab-list li:hover {
  border-color: var(--outline-strong);
  background: rgba(28,43,26,0.02);
}

/* ---- GALLERY ---- */
.bi-gallery { padding: 100px 0; }

.bi-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}

.bi-gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--outline);
  display: block;
  aspect-ratio: 4/3;
  transition: all var(--transition);
}
.bi-gallery-item--tall {
  grid-row: span 2;
  aspect-ratio: unset;
}
.bi-gallery-item--wide {
  grid-column: span 2;
}

.bi-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.bi-gallery-item:hover { border-color: var(--outline-strong); box-shadow: var(--shadow-md); }
.bi-gallery-item:hover img { transform: scale(1.06); }

.bi-gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(28,43,26,0.55);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  opacity: 0;
  transition: opacity var(--transition);
  color: #fff;
}
.bi-gallery-overlay i { font-size: 1.5rem; }
.bi-gallery-overlay span { font-size: 0.88rem; font-weight: 500; }
.bi-gallery-item:hover .bi-gallery-overlay { opacity: 1; }

/* ---- CTA ---- */
.bi-cta {
  padding: 100px 0;
  background: var(--text);
  border-top: 1px solid rgba(247,244,239,0.08);
}

.bi-cta-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.bi-cta-deco {
  font-size: 2.5rem;
  color: var(--accent-light);
  margin-bottom: 20px;
  opacity: 0.8;
}

.bi-cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--bg);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.bi-cta-body {
  font-size: 1.05rem;
  color: rgba(247,244,239,0.65);
  line-height: 1.75;
  margin-bottom: 36px;
}

/* ---- CONTACT ---- */
.bi-contact { padding: 100px 0; }

.bi-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.bi-contact-intro {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 36px;
}

.bi-contact-items {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

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

.bi-contact-icon {
  width: 40px; height: 40px;
  border: 1px solid var(--outline-med);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: all var(--transition);
}
.bi-contact-item:hover .bi-contact-icon {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.bi-contact-item > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bi-contact-item strong {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.bi-contact-item span, .bi-contact-item a {
  font-size: 0.93rem;
  color: var(--text);
  line-height: 1.6;
}
.bi-contact-item a:hover { color: var(--accent); }

.bi-map-wrap {
  border: 1px solid var(--outline-med);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* ---- FORM WIZARD ---- */
.bi-form-card {
  background: var(--bg);
  border: 1.5px solid var(--outline-med);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.bi-step-indicator {
  display: flex;
  align-items: center;
  margin-bottom: 36px;
}

.bi-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.bi-step-num {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--outline-med);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
}
.bi-step--active .bi-step-num {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}
.bi-step--done .bi-step-num {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.bi-step-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-light);
  white-space: nowrap;
  transition: color var(--transition);
}
.bi-step--active .bi-step-label { color: var(--text); font-weight: 600; }

.bi-step-line {
  flex: 1;
  height: 1px;
  background: var(--outline-med);
  margin: 0 8px;
  margin-bottom: 20px;
}

.bi-form-step { display: none; }
.bi-form-step--active { display: block; animation: stepFadeIn 0.3s ease; }

@keyframes stepFadeIn {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}

.bi-form-step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.bi-field { margin-bottom: 20px; }

.bi-label {
  display: block;
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 7px;
}
.bi-req { color: var(--accent); }

.bi-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--outline-med);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text);
  font-size: 0.95rem;
  font-family: 'Figtree', sans-serif;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  min-height: 44px;
}
.bi-input::placeholder { color: var(--text-light); }
.bi-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(139,105,20,0.12);
}
.bi-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%235A6858' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; background-size: 18px; padding-right: 44px; cursor: pointer; }
.bi-textarea { resize: vertical; min-height: 120px; }

.bi-field--checkbox { margin-top: 4px; }
.bi-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}
.bi-checkbox { position: absolute; opacity: 0; width: 0; height: 0; }
.bi-checkbox-custom {
  width: 18px; height: 18px;
  border: 1.5px solid var(--outline-med);
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.bi-checkbox:checked + .bi-checkbox-custom {
  background: var(--text);
  border-color: var(--text);
}
.bi-checkbox:checked + .bi-checkbox-custom::after {
  content: '';
  width: 5px; height: 9px;
  border: 2px solid var(--bg);
  border-top: none; border-left: none;
  transform: rotate(45deg) translateY(-1px);
  display: block;
}
.bi-link { color: var(--accent); border-bottom: 1px solid rgba(139,105,20,0.3); transition: border-color var(--transition); }
.bi-link:hover { border-color: var(--accent); }

.bi-form-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
}

/* intl-tel-input override */
.iti { width: 100%; }
.iti input { width: 100%; }
.iti--container { z-index: 9999; }

/* ---- FOOTER ---- */
.bi-footer {
  background: var(--text);
  color: rgba(247,244,239,0.75);
  padding: 72px 0 0;
}

.bi-footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(247,244,239,0.1);
}

.bi-footer-logo {
  font-family: 'Literata', serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--bg);
  display: block;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.bi-footer-logo span { color: var(--accent-light); }

.bi-footer-tagline {
  font-size: 0.88rem;
  line-height: 1.65;
  margin-bottom: 20px;
  color: rgba(247,244,239,0.6);
}

.bi-footer-address {
  font-size: 0.87rem;
  line-height: 1.75;
  color: rgba(247,244,239,0.55);
}
.bi-footer-address a { color: rgba(247,244,239,0.7); transition: color var(--transition); }
.bi-footer-address a:hover { color: var(--bg); }

.bi-footer-heading {
  font-family: 'Figtree', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(247,244,239,0.4);
  margin-bottom: 16px;
}

.bi-footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.bi-footer-links a {
  font-size: 0.9rem;
  color: rgba(247,244,239,0.65);
  transition: color var(--transition);
  padding: 3px 0;
}
.bi-footer-links a:hover { color: var(--bg); }

.bi-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 0.83rem;
  color: rgba(247,244,239,0.4);
  gap: 16px;
  flex-wrap: wrap;
}
.bi-footer-bottom a { color: rgba(247,244,239,0.5); transition: color var(--transition); }
.bi-footer-bottom a:hover { color: var(--bg); }

/* ---- COOKIE CONSENT - SPLIT BOTTOM ---- */
.bi-cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 9000;
  background: var(--text);
  border-top: 1px solid rgba(247,244,239,0.12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  transform: translateY(100%);
  transition: transform 0.45s cubic-bezier(0.16,1,0.3,1);
  box-shadow: 0 -8px 32px rgba(28,43,26,0.2);
}
.bi-cookie-banner.bi-cookie--visible { transform: translateY(0); }

.bi-cookie-left {
  padding: 28px 32px;
  border-right: 1px solid rgba(247,244,239,0.1);
}

.bi-cookie-right {
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bi-cookie-logo {
  font-family: 'Literata', serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--bg);
  margin-bottom: 10px;
}
.bi-cookie-logo span { color: var(--accent-light); }

.bi-cookie-text {
  font-size: 0.87rem;
  color: rgba(247,244,239,0.65);
  line-height: 1.65;
  margin-bottom: 8px;
}

.bi-cookie-links { font-size: 0.8rem; }
.bi-cookie-links a { color: rgba(247,244,239,0.5); border-bottom: 1px solid rgba(247,244,239,0.2); transition: color var(--transition); }
.bi-cookie-links a:hover { color: var(--bg); }

.bi-cookie-toggles { display: flex; flex-direction: column; gap: 8px; flex: 1; }

.bi-cookie-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 14px;
  border: 1px solid rgba(247,244,239,0.1);
  border-radius: var(--radius-sm);
}

.bi-cookie-toggle-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.bi-cookie-toggle-label strong {
  font-size: 0.82rem;
  color: var(--bg);
  font-weight: 600;
}
.bi-cookie-toggle-label span {
  font-size: 0.73rem;
  color: rgba(247,244,239,0.45);
}

.bi-cookie-switch {
  position: relative;
  width: 38px; height: 20px;
  flex-shrink: 0;
}
.bi-cookie-switch input { opacity: 0; width: 0; height: 0; }
.bi-cookie-slider {
  position: absolute;
  inset: 0;
  background: rgba(247,244,239,0.2);
  border-radius: 20px;
  cursor: pointer;
  transition: background var(--transition);
}
.bi-cookie-slider::before {
  content: '';
  position: absolute;
  width: 14px; height: 14px;
  left: 3px; top: 3px;
  background: var(--bg);
  border-radius: 50%;
  transition: transform var(--transition);
}
.bi-cookie-switch input:checked + .bi-cookie-slider { background: var(--green); }
.bi-cookie-switch input:checked + .bi-cookie-slider::before { transform: translateX(18px); }
.bi-cookie-switch input:disabled + .bi-cookie-slider { opacity: 0.7; cursor: not-allowed; }

.bi-cookie-btns {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.bi-cookie-btn-accept {
  flex: 1;
  padding: 10px;
  background: var(--bg);
  color: var(--text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.87rem;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Figtree', sans-serif;
  transition: all var(--transition);
}
.bi-cookie-btn-accept:hover { background: var(--accent-light); color: #fff; }

.bi-cookie-btn-save {
  flex: 1;
  padding: 10px;
  background: transparent;
  color: rgba(247,244,239,0.7);
  border: 1px solid rgba(247,244,239,0.2);
  border-radius: var(--radius-sm);
  font-size: 0.87rem;
  font-weight: 600;
  cursor: pointer;
  font-family: 'Figtree', sans-serif;
  transition: all var(--transition);
}
.bi-cookie-btn-save:hover { border-color: rgba(247,244,239,0.5); color: var(--bg); }

/* ---- SCROLL REVEAL ---- */
.bi-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.bi-reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================
   RESPONSIVE
   ============================ */

/* Tablet: 1024px */
@media (max-width: 1024px) {
  .bi-hero-inner { gap: 40px; }
  .bi-hero-float-card { right: -10px; }
  .bi-about-grid { gap: 48px; }
  .bi-about-img-secondary { right: -16px; }
  .bi-footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .bi-tabs-layout { grid-template-columns: 200px 1fr; gap: 32px; }
}

/* Tablet: 768px */
@media (max-width: 768px) {
  .bi-nav-links, .bi-nav-cta { display: none; }
  .bi-hamburger { display: flex; }

  .bi-hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }
  .bi-hero-desc { margin: 0 auto 36px; }
  .bi-hero-actions { justify-content: center; }
  .bi-hero-meta { justify-content: center; }
  .bi-hero-float-card { right: 0; top: 16px; }

  .bi-about-grid { grid-template-columns: 1fr; gap: 60px; }
  .bi-about-img-stack { max-width: 480px; margin: 0 auto; }

  .bi-course-cards { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto 48px; }

  .bi-tabs-layout { grid-template-columns: 1fr; }
  .bi-tabs-nav {
    flex-direction: row;
    flex-wrap: wrap;
    position: static;
    gap: 8px;
  }
  .bi-tab-btn { flex: 1; min-width: 140px; justify-content: center; }
  .bi-tab-panel { grid-template-columns: 1fr; }
  .bi-tab-visual { aspect-ratio: 16/9; }

  .bi-gallery-grid { grid-template-columns: 1fr 1fr; }
  .bi-gallery-item--tall { grid-row: auto; aspect-ratio: 4/3; }
  .bi-gallery-item--wide { grid-column: auto; }

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

  .bi-footer-top { grid-template-columns: 1fr 1fr; }
  .bi-footer-brand { grid-column: span 2; }

  .bi-cookie-banner { grid-template-columns: 1fr; }
  .bi-cookie-left { border-right: none; border-bottom: 1px solid rgba(247,244,239,0.1); padding: 20px 24px; }
  .bi-cookie-right { padding: 20px 24px; }

  .bi-compare-wrap { padding: 24px 20px; }
}

/* Mobile: 480px */
@media (max-width: 480px) {
  .bi-hero { padding: 60px 20px 40px; }
  .bi-hero-title { font-size: 2.1rem; }

  .bi-about-pillars { grid-template-columns: 1fr; }
  .bi-about-img-secondary { display: none; }

  .bi-gallery-grid { grid-template-columns: 1fr; }

  .bi-form-card { padding: 28px 20px; }
  .bi-step-label { display: none; }

  .bi-footer-top { grid-template-columns: 1fr; }
  .bi-footer-brand { grid-column: auto; }

  .bi-cookie-btns { flex-direction: column; }
}