:root {
  --eq-orange: #F36F21;
  --eq-amber: #FAA61A;
  --eq-yellow: #F7E600;
  --eq-lime: #C4D600;
  --eq-green: #6CC24A;
  --eq-gradient: linear-gradient(90deg, #F36F21 0%, #FAA61A 25%, #F7E600 50%, #C4D600 75%, #6CC24A 100%);
  --eq-gradient-soft: linear-gradient(135deg, rgba(243, 111, 33, 0.12) 0%, rgba(250, 166, 26, 0.12) 35%, rgba(196, 214, 0, 0.12) 70%, rgba(108, 194, 74, 0.12) 100%);
  --eso2-color: #D98A1C;
  --eso2-bg: #FFF9EE;
  --eso3-color: #2B78B8;
  --eso3-bg: #F0F7FD;
  --eso4-color: #4EA32E;
  --eso4-bg: #F1FAEE;
  --ink-950: #0F141C;
  --ink-900: #181F2C;
  --ink-800: #252E3F;
  --ink-700: #374151;
  --ink-600: #4B5563;
  --ink-500: #6B7280;
  --ink-400: #9CA3AF;
  --surface-0: #FFFFFF;
  --surface-50: #F8FAFC;
  --surface-100: #F1F5F9;
  --surface-200: #E2E8F0;
  --border-subtle: rgba(15, 20, 28, 0.08);
  --border-strong: rgba(15, 20, 28, 0.15);
  --shadow-xs: 0 1px 3px rgba(15, 20, 28, 0.05);
  --shadow-sm: 0 4px 12px rgba(15, 20, 28, 0.06);
  --shadow-md: 0 12px 32px -4px rgba(15, 20, 28, 0.09);
  --shadow-lg: 0 24px 48px -12px rgba(15, 20, 28, 0.16);
  --shadow-orange: 0 10px 25px -5px rgba(243, 111, 33, 0.38);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  --font-sans: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', 'Plus Jakarta Sans', system-ui, sans-serif;
  --transition: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; font-size: 16px; }
body { font-family: var(--font-sans); color: var(--ink-900); background-color: var(--surface-50); line-height: 1.65; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { width: 100%; max-width: 1260px; margin: 0 auto; padding: 0 1.5rem; }
.top-eq-strip { height: 5px; width: 100%; background: var(--eq-gradient); position: fixed; top: 0; left: 0; z-index: 1001; }
.site-header { position: sticky; top: 5px; z-index: 1000; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border-subtle); transition: box-shadow var(--transition), background var(--transition); }
.site-header.scrolled { box-shadow: var(--shadow-sm); background: rgba(255, 255, 255, 0.97); }
.site-header .container { max-width: 1380px; padding: 0 1.25rem; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 78px; gap: 0.5rem; }
.brand-link { display: flex; align-items: center; gap: 0.55rem; flex-shrink: 0; }
.brand-logo { height: 42px; width: auto; transition: transform var(--transition); }
.brand-link:hover .brand-logo { transform: scale(1.03); }
.brand-text { display: flex; flex-direction: column; }
.brand-name { font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; letter-spacing: -0.02em; color: var(--ink-950); line-height: 1.15; }
.brand-sub { font-size: 0.6rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.02em; color: var(--ink-500); }
.main-nav { display: flex; align-items: center; gap: 0.08rem; }
.nav-link { padding: 0.38rem 0.48rem; border-radius: var(--radius-full); font-weight: 600; font-size: 0.81rem; color: var(--ink-700); position: relative; white-space: nowrap; transition: all var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--ink-950); background: var(--surface-100); }
.nav-link.active::after { content: ''; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; border-radius: 3px; background: var(--eq-gradient); }
.header-actions { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; }
.header-actions .btn-sm { padding: 0.4rem 0.72rem; font-size: 0.78rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.65rem 1.25rem; border-radius: var(--radius-full); font-weight: 700; font-size: 0.92rem; border: none; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: linear-gradient(135deg, var(--eq-orange) 0%, #E0550B 100%); color: #FFFFFF; box-shadow: var(--shadow-orange); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 28px -6px rgba(243, 111, 33, 0.5); }
.btn-dark { background: var(--ink-900); color: #FFFFFF; }
.btn-dark:hover { background: var(--ink-800); transform: translateY(-2px); }
.btn-outline { background: var(--surface-0); color: var(--ink-900); border: 1.5px solid var(--border-strong); }
.btn-outline:hover { border-color: var(--eq-orange); color: var(--eq-orange); background: #FFF9F5; }
.btn-sm { padding: 0.48rem 0.95rem; font-size: 0.84rem; }
.btn-user-logged { background: #ECFDF5; color: #065F46; border: 1.5px solid #A7F3D0; }
.mobile-menu-btn { display: none; background: var(--surface-100); border: 1px solid var(--border-subtle); width: 42px; height: 42px; border-radius: var(--radius-sm); align-items: center; justify-content: center; cursor: pointer; color: var(--ink-900); }
.hero-section { position: relative; padding: 4.5rem 0 5rem; background: radial-gradient(circle at 12% 18%, rgba(243, 111, 33, 0.10) 0%, transparent 42%), radial-gradient(circle at 88% 22%, rgba(108, 194, 74, 0.12) 0%, transparent 45%), radial-gradient(circle at 60% 85%, rgba(247, 230, 0, 0.10) 0%, transparent 40%), linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%); border-bottom: 1px solid var(--border-subtle); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 3.5rem; align-items: center; }
.eyebrow-badge { display: inline-flex; align-items: center; gap: 0.55rem; padding: 0.4rem 0.95rem; border-radius: var(--radius-full); background: var(--surface-0); border: 1px solid var(--border-strong); box-shadow: var(--shadow-xs); font-size: 0.82rem; font-weight: 700; color: var(--ink-800); margin-bottom: 1.25rem; }
.mini-eq { display: inline-flex; align-items: flex-end; gap: 2.5px; height: 15px; }
.mini-eq span { width: 3.5px; border-radius: 1.5px; animation: eqPulse 1.4s ease-in-out infinite alternate; }
.mini-eq span:nth-child(1) { height: 6px; background: var(--eq-orange); animation-delay: 0s; }
.mini-eq span:nth-child(2) { height: 9px; background: var(--eq-amber); animation-delay: 0.15s; }
.mini-eq span:nth-child(3) { height: 12px; background: var(--eq-yellow); animation-delay: 0.3s; }
.mini-eq span:nth-child(4) { height: 14px; background: var(--eq-lime); animation-delay: 0.45s; }
.mini-eq span:nth-child(5) { height: 15px; background: var(--eq-green); animation-delay: 0.6s; }
@keyframes eqPulse { 0% { transform: scaleY(0.55); transform-origin: bottom; } 100% { transform: scaleY(1.1); transform-origin: bottom; } }
.hero-title { font-family: var(--font-display); font-size: clamp(2.35rem, 4.2vw, 3.65rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; color: var(--ink-950); margin-bottom: 1.25rem; }
.text-gradient { background: linear-gradient(95deg, #F36F21 0%, #E08E0B 45%, #51A330 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-lead { font-size: 1.12rem; color: var(--ink-600); max-width: 600px; margin-bottom: 2rem; }
.hero-cta-group { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-bottom: 2.5rem; }
.hero-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding-top: 1.75rem; border-top: 1px solid var(--border-subtle); }
.metric-item { display: flex; flex-direction: column; }
.metric-val { font-family: var(--font-display); font-size: 1.65rem; font-weight: 800; color: var(--ink-950); line-height: 1.1; }
.metric-lbl { font-size: 0.8rem; font-weight: 600; color: var(--ink-500); margin-top: 0.2rem; }
.hero-showcase { position: relative; display: flex; flex-direction: column; gap: 1.25rem; }
.showcase-card-main { background: var(--surface-0); border-radius: var(--radius-lg); padding: 1.75rem; box-shadow: var(--shadow-lg); border: 1px solid var(--border-subtle); position: relative; overflow: hidden; }
.showcase-card-main::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: var(--eq-gradient); }
.showcase-books-img { width: 100%; max-height: 290px; object-fit: contain; margin: 0 auto 1rem; filter: drop-shadow(0 14px 22px rgba(15, 20, 28, 0.12)); transition: transform var(--transition); }
.showcase-card-main:hover .showcase-books-img { transform: translateY(-4px) scale(1.02); }
.showcase-Floating-pills { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
.mini-feature-card { background: var(--surface-0); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 1rem 1.1rem; box-shadow: var(--shadow-sm); display: flex; align-items: center; gap: 0.85rem; transition: all var(--transition); cursor: pointer; }
.mini-feature-card:hover { transform: translateY(-3px); border-color: var(--eq-orange); box-shadow: var(--shadow-md); }
.mini-feature-icon { width: 42px; height: 42px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.25rem; flex-shrink: 0; }
.section { padding: 5rem 0; }
.section-alt { background: var(--surface-0); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.section-dark { background: var(--ink-950); color: #FFFFFF; position: relative; overflow: hidden; }
.section-header { max-width: 740px; margin: 0 auto 3.25rem; text-align: center; }
.section-tag { display: inline-flex; align-items: center; gap: 0.45rem; font-size: 0.78rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; color: var(--eq-orange); background: rgba(243, 111, 33, 0.1); padding: 0.35rem 0.85rem; border-radius: var(--radius-full); margin-bottom: 0.85rem; }
.section-title { font-family: var(--font-display); font-size: clamp(1.85rem, 3vw, 2.6rem); font-weight: 800; letter-spacing: -0.025em; line-height: 1.18; margin-bottom: 0.85rem; }
.section-desc { font-size: 1.05rem; color: var(--ink-600); }
.section-dark .section-desc { color: #94A3B8; }
.books-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.book-card { background: var(--surface-0); border-radius: var(--radius-lg); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm); overflow: hidden; display: flex; flex-direction: column; transition: all var(--transition); }
.book-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.book-card-header { padding: 2rem 1.5rem 1.25rem; display: flex; flex-direction: column; align-items: center; text-align: center; position: relative; }
.book-level-badge { position: absolute; top: 1rem; right: 1rem; padding: 0.3rem 0.75rem; border-radius: var(--radius-full); font-size: 0.76rem; font-weight: 800; background: var(--surface-0); box-shadow: var(--shadow-xs); }
.book-cover-wrap { height: 230px; display: flex; align-items: center; justify-content: center; margin-bottom: 1rem; }
.book-cover-img { max-height: 220px; width: auto; border-radius: 6px; box-shadow: 0 14px 28px rgba(15, 20, 28, 0.18); transition: transform var(--transition); }
.book-card:hover .book-cover-img { transform: scale(1.04) rotate(-1.5deg); }
.book-card-body { padding: 1.5rem 1.75rem 1.75rem; display: flex; flex-direction: column; flex: 1; }
.book-title { font-family: var(--font-display); font-size: 1.4rem; font-weight: 800; color: var(--ink-950); margin-bottom: 0.25rem; }
.book-subtitle { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.85rem; }
.book-summary { font-size: 0.92rem; color: var(--ink-600); margin-bottom: 1.15rem; }
.book-highlights { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; flex: 1; }
.book-highlights li { font-size: 0.85rem; color: var(--ink-700); display: flex; align-items: flex-start; gap: 0.5rem; }
.book-highlights li::before { content: '✓'; font-weight: 900; color: var(--eq-green); flex-shrink: 0; }
.book-card-footer { display: flex; gap: 0.65rem; padding-top: 1.1rem; border-top: 1px solid var(--border-subtle); }
.explorer-box { background: var(--surface-0); border-radius: var(--radius-xl); border: 1px solid var(--border-strong); box-shadow: var(--shadow-md); overflow: hidden; }
.explorer-toolbar { padding: 1.5rem 2rem; background: var(--ink-900); color: #FFFFFF; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.25rem; }
.course-tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.course-tab { padding: 0.6rem 1.25rem; border-radius: var(--radius-full); background: rgba(255, 255, 255, 0.08); color: #CBD5E1; border: 1px solid rgba(255, 255, 255, 0.12); font-weight: 700; font-size: 0.9rem; cursor: pointer; transition: all var(--transition); }
.course-tab:hover { background: rgba(255, 255, 255, 0.16); color: #FFFFFF; }
.course-tab.active { background: var(--eq-orange); color: #FFFFFF; border-color: var(--eq-orange); box-shadow: var(--shadow-orange); }
.explorer-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; }
.search-input-wrap { position: relative; }
.search-input { background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2); color: #FFFFFF; padding: 0.55rem 1rem 0.55rem 2.35rem; border-radius: var(--radius-full); font-size: 0.88rem; width: 250px; outline: none; transition: all var(--transition); }
.search-input::placeholder { color: #94A3B8; }
.search-input:focus { background: rgba(255, 255, 255, 0.16); border-color: var(--eq-amber); width: 280px; }
.search-icon { position: absolute; left: 0.85rem; top: 50%; transform: translateY(-50%); color: #94A3B8; font-size: 0.9rem; }
.filter-select { background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2); color: #FFFFFF; padding: 0.55rem 1rem; border-radius: var(--radius-full); font-size: 0.86rem; font-weight: 600; outline: none; cursor: pointer; }
.filter-select option { color: var(--ink-900); background: #FFFFFF; }
.explorer-body { display: grid; grid-template-columns: 310px 1fr; min-height: 540px; }
.units-sidebar { background: var(--surface-50); border-right: 1px solid var(--border-subtle); padding: 1.25rem; display: flex; flex-direction: column; gap: 0.45rem; }
.unit-btn { text-align: left; padding: 0.85rem 1rem; border-radius: var(--radius-sm); background: transparent; border: 1px solid transparent; cursor: pointer; transition: all var(--transition); display: flex; flex-direction: column; gap: 0.2rem; }
.unit-btn:hover { background: var(--surface-0); border-color: var(--border-subtle); }
.unit-btn.active { background: var(--surface-0); border-color: var(--eq-orange); box-shadow: var(--shadow-xs); }
.unit-btn-top { display: flex; align-items: center; justify-content: space-between; font-size: 0.75rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em; color: var(--eq-orange); }
.unit-btn-title { font-weight: 700; font-size: 0.92rem; color: var(--ink-900); }
.unit-content-pane { padding: 2rem; }
.unit-detail-banner { display: grid; grid-template-columns: 1fr auto; gap: 1.5rem; align-items: center; background: var(--surface-50); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 1.5rem; margin-bottom: 1.75rem; }
.unit-detail-img { width: 150px; height: 110px; object-fit: cover; border-radius: var(--radius-sm); border: 1px solid var(--border-subtle); }
.unit-topics-pills { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.85rem; }
.topic-pill { font-size: 0.78rem; font-weight: 600; padding: 0.28rem 0.7rem; border-radius: var(--radius-full); background: var(--surface-0); border: 1px solid var(--border-strong); color: var(--ink-700); }
.scores-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; }
.score-card { background: var(--surface-0); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); overflow: hidden; display: flex; flex-direction: column; transition: all var(--transition); }
.score-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--eq-amber); }
.score-thumb-wrap { position: relative; height: 165px; background: var(--surface-100); overflow: hidden; border-bottom: 1px solid var(--border-subtle); }
.score-thumb { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform 0.4s ease; }
.score-card:hover .score-thumb { transform: scale(1.05); }
.score-badges { position: absolute; top: 0.65rem; left: 0.65rem; right: 0.65rem; display: flex; justify-content: space-between; gap: 0.4rem; }
.badge-pill { padding: 0.22rem 0.6rem; border-radius: var(--radius-full); font-size: 0.7rem; font-weight: 800; backdrop-filter: blur(8px); }
.badge-free { background: rgba(16, 185, 129, 0.92); color: #FFFFFF; }
.badge-member { background: rgba(15, 20, 28, 0.85); color: #F8FAFC; }
.badge-notes { background: rgba(243, 111, 33, 0.92); color: #FFFFFF; }
.score-body { padding: 1.1rem 1.25rem 1.25rem; display: flex; flex-direction: column; flex: 1; }
.score-title { font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; color: var(--ink-950); margin-bottom: 0.45rem; }
.score-features { list-style: none; font-size: 0.8rem; color: var(--ink-600); margin-bottom: 1rem; flex: 1; }
.score-features li { margin-bottom: 0.2rem; }
.featured-app-banner { background: linear-gradient(135deg, #151C28 0%, #1F293D 100%); border-radius: var(--radius-xl); padding: 2.75rem; color: #FFFFFF; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 2.5rem; align-items: center; margin-bottom: 2.5rem; position: relative; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.1); }
.featured-app-banner::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: var(--eq-gradient); }
.featured-app-img { border-radius: var(--radius-md); box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35); border: 1px solid rgba(255, 255, 255, 0.15); }
.sa-showcase-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(225px, 1fr)); gap: 1.15rem; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.12); grid-column: 1 / -1; }
.sa-card { background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: var(--radius-md); overflow: hidden; display: flex; flex-direction: column; transition: all var(--transition); }
.sa-card:hover { transform: translateY(-4px); background: rgba(255, 255, 255, 0.1); border-color: var(--eq-amber); }
.sa-card-img { height: 135px; width: 100%; object-fit: cover; }
.sa-card-body { padding: 1rem; display: flex; flex-direction: column; flex: 1; }
.sa-card-badge { font-size: 0.7rem; font-weight: 800; color: var(--eq-yellow); text-transform: uppercase; margin-bottom: 0.3rem; }
.sa-card-title { font-weight: 700; font-size: 0.92rem; color: #FFFFFF; margin-bottom: 0.4rem; line-height: 1.3; }
.sa-card-desc { font-size: 0.78rem; color: #CBD5E1; margin-bottom: 0.85rem; flex: 1; }
.apps-secondary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.app-card { background: var(--surface-0); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 1.75rem; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: all var(--transition); }
.app-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.app-thumb-box { height: 190px; background: var(--surface-50); border-radius: var(--radius-md); overflow: hidden; display: flex; align-items: center; justify-content: center; margin-bottom: 1.25rem; border: 1px solid var(--border-subtle); }
.app-thumb-box img { width: 100%; height: 100%; object-fit: cover; }
.soundboard-mini { background: var(--ink-900); border-radius: var(--radius-sm); padding: 0.85rem; margin: 0.75rem 0 1.15rem; }
.soundboard-mini-title { font-size: 0.74rem; font-weight: 700; color: #CBD5E1; margin-bottom: 0.5rem; display: flex; align-items: center; justify-content: space-between; }
.pad-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.45rem; }
.sound-pad { border: none; border-radius: 8px; padding: 0.55rem 0.3rem; font-size: 0.74rem; font-weight: 800; color: var(--ink-950); cursor: pointer; transition: transform 0.1s ease, filter 0.15s ease; text-align: center; }
.sound-pad:active, .sound-pad.playing { transform: scale(0.93); filter: brightness(1.15); }
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; margin-top: 2.5rem; }
.principle-card { background: var(--surface-50); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 2rem; position: relative; transition: all var(--transition); }
.principle-card:hover { background: var(--surface-0); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.principle-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 1.2rem; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 2.5rem; align-items: stretch; }
.contact-info-card { background: var(--ink-900); color: #FFFFFF; border-radius: var(--radius-lg); padding: 2.5rem; display: flex; flex-direction: column; justify-content: space-between; position: relative; overflow: hidden; }
.contact-info-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: var(--eq-gradient); }
.contact-form-card { background: var(--surface-0); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 2.5rem; box-shadow: var(--shadow-sm); }
.form-group { margin-bottom: 1.15rem; }
.form-label { display: block; font-size: 0.85rem; font-weight: 700; color: var(--ink-800); margin-bottom: 0.4rem; }
.form-control { width: 100%; padding: 0.75rem 1rem; border-radius: var(--radius-sm); border: 1.5px solid var(--surface-200); background: var(--surface-50); color: var(--ink-900); transition: all var(--transition); outline: none; }
.form-control:focus { border-color: var(--eq-orange); background: var(--surface-0); box-shadow: 0 0 0 3px rgba(243, 111, 33, 0.12); }
.site-footer { background: var(--ink-950); color: #94A3B8; padding: 4rem 0 2rem; border-top: 4px solid transparent; border-image: var(--eq-gradient) 1; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer-heading { color: #FFFFFF; font-family: var(--font-display); font-weight: 700; font-size: 1rem; margin-bottom: 1rem; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.55rem; font-size: 0.9rem; }
.footer-links a:hover { color: var(--eq-amber); }
.footer-bottom { padding-top: 1.75rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; font-size: 0.84rem; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 20, 28, 0.72); backdrop-filter: blur(6px); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 1.25rem; }
.modal-backdrop.open { display: flex; }
.modal-dialog { background: var(--surface-0); border-radius: var(--radius-lg); width: 100%; max-width: 520px; max-height: 92vh; overflow-y: auto; box-shadow: var(--shadow-lg); position: relative; animation: modalIn 0.22s ease-out; }
.modal-dialog.modal-xl { max-width: 1040px; }
@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-header { padding: 1.35rem 1.75rem; border-bottom: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; background: var(--surface-0); z-index: 5; }
.modal-body { padding: 1.75rem; }
.modal-close { background: var(--surface-100); border: none; width: 36px; height: 36px; border-radius: 50%; cursor: pointer; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; color: var(--ink-700); }
.modal-close:hover { background: var(--surface-200); color: var(--ink-950); }
.cookie-banner { position: fixed; bottom: 1.25rem; left: 1.25rem; right: 1.25rem; max-width: 960px; margin: 0 auto; background: var(--ink-900); color: #F8FAFC; border: 1px solid rgba(255, 255, 255, 0.14); border-radius: var(--radius-md); padding: 1.25rem 1.5rem; box-shadow: var(--shadow-lg); z-index: 1900; display: none; align-items: center; justify-content: space-between; gap: 1.5rem; }
.cookie-banner.visible { display: flex; }
@media (max-width: 1024px) {
  .hero-grid, .featured-app-banner, .contact-grid { grid-template-columns: 1fr; }
  .books-grid, .apps-secondary-grid, .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .explorer-body { grid-template-columns: 1fr; }
  .units-sidebar { flex-direction: row; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .unit-btn { min-width: 210px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .main-nav { display: none; position: absolute; top: 78px; left: 0; right: 0; background: var(--surface-0); flex-direction: column; padding: 1rem; border-bottom: 1px solid var(--border-strong); box-shadow: var(--shadow-md); }
  .main-nav.open { display: flex; }
  .mobile-menu-btn { display: inline-flex; }
  .books-grid, .apps-secondary-grid, .principles-grid, .showcase-Floating-pills, .footer-grid { grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); }
  .unit-detail-banner { grid-template-columns: 1fr; }
  .cookie-banner { flex-direction: column; align-items: flex-start; }
}