/* ==========================================================================
   FRANKBASE.COM — MODERN DESIGN SYSTEM & STYLESHEET
   Version: 2.0.0 (11ty Component Architecture)
   ========================================================================== */

:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-dim: #94a3b8;

  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-light: #eef2ff;
  --accent-glow: rgba(79, 70, 229, 0.15);

  --emerald: #059669;
  --emerald-light: #ecfdf5;
  --amber: #d97706;
  --amber-light: #fffbeb;
  --rose: #e11d48;
  --rose-light: #fff1f2;

  --border: #e2e8f0;
  --border-subtle: #f1f5f9;
  --border-strong: #cbd5e1;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --container-max: 1200px;
  --header-height: 72px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-surface: #131d31;
  --bg-surface-elevated: #1a2742;
  --bg-glass: rgba(15, 23, 42, 0.85);

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-light: rgba(99, 102, 241, 0.15);
  --accent-glow: rgba(99, 102, 241, 0.25);

  --emerald: #10b981;
  --emerald-light: rgba(16, 185, 129, 0.15);
  --amber: #f59e0b;
  --amber-light: rgba(245, 158, 11, 0.15);
  --rose: #f43f5e;
  --rose-light: rgba(244, 63, 94, 0.15);

  --border: #1e293b;
  --border-subtle: #172033;
  --border-strong: #334155;

  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
}

/* RESET & BASE */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.25s ease, color 0.25s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  color: var(--text-primary);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.15rem; }

p { color: var(--text-secondary); }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-hover); }

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.mono { font-family: 'JetBrains Mono', monospace; }

/* FIXED HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-primary);
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  color: #ffffff;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 4px 10px var(--accent-glow);
}

.logo-text span { color: var(--accent); }

.header-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
  background: var(--accent-light);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--bg-secondary);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

.mobile-menu.open { display: flex; }

/* HERO */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 10%, var(--accent-light) 0%, transparent 60%);
}

.hero-content {
  text-align: center;
  max-width: 840px;
  margin: 0 auto;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  border: 1px solid var(--accent-glow);
}

.hero-title { margin-bottom: 1.25rem; }
.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero-search-box {
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.5rem 0.75rem 0.5rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  max-width: 620px;
  margin: 0 auto 2rem;
  transition: var(--transition);
}

.hero-search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.hero-search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 1rem;
  color: var(--text-primary);
  outline: none;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* CARDS & GRIDS */
.section { padding: 4rem 0; }
.section-alt { background-color: var(--bg-secondary); }
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}
.section-title { margin-bottom: 0.75rem; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card-title { font-size: 1.3rem; margin-bottom: 0.5rem; }
.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  flex: 1;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* TRUST BAR */
.trust-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 2rem 0;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.trust-item-icon {
  font-size: 1.8rem;
  color: var(--emerald);
}

.trust-item-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}

.trust-item-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* FOUNDER CARD */
.founder-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2.5rem;
  align-items: center;
  box-shadow: var(--shadow-md);
}

.founder-avatar {
  width: 180px;
  height: 180px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 8px 16px var(--accent-glow);
}

.founder-info h3 { font-size: 1.6rem; margin-bottom: 0.25rem; }
.founder-role {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.founder-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.credential-badge {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* LANGUAGE SWITCHER CONTROLS */
.lang-controls {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 2rem;
}

.lang-toggle {
  display: inline-flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 9999px;
  padding: 4px;
  gap: 4px;
}

.lang-btn {
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.lang-btn:not(.active):hover {
  color: var(--text-primary);
}

/* ARTICLE / BIOGRAPHY STORY CONTENT */
.story-content {
  max-width: 860px;
  margin: 0 auto;
  line-height: 1.85;
}

.story-content h1, .story-content h2, .story-content h3 {
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.story-content h1 { font-size: 2.25rem; font-weight: 800; line-height: 1.25; }
.story-content h2 { font-size: 1.5rem; font-weight: 700; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.story-content p { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 1.25rem; }
.story-content ul, .story-content ol { padding-left: 1.5rem; margin-bottom: 1.5rem; color: var(--text-secondary); }
.story-content li { font-size: 1.05rem; margin-bottom: 0.5rem; }

.quote-box {
  background: var(--bg-secondary);
  border-left: 4px solid var(--accent);
  padding: 1.5rem 1.75rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 2rem 0;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.quote-box footer {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-style: normal;
  color: var(--accent);
}

/* ACCORDION CARDS */
.accordion-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.accordion-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.accordion-card:hover { border-color: var(--accent); }
.accordion-card.active { border-color: var(--accent); box-shadow: var(--shadow-md); }

.accordion-header-btn {
  width: 100%;
  padding: 1.5rem 1.75rem;
  background: transparent;
  border: none;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: var(--text-primary);
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  transition: var(--transition);
}

.accordion-header-btn:hover { background: var(--bg-secondary); }

.accordion-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.accordion-icon-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.accordion-toggle-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 600;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.accordion-card.active .accordion-toggle-icon {
  transform: rotate(180deg);
  background: var(--accent);
  color: #ffffff;
}

.accordion-body {
  display: none;
  padding: 0 2rem 2rem 2rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-subtle);
  animation: fadeIn 0.3s ease;
}

.accordion-card.active .accordion-body { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.accordion-body h3 {
  font-size: 1.15rem;
  margin: 1.5rem 0 0.6rem;
  color: var(--text-primary);
}

.accordion-body p, .accordion-body li {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 0.85rem;
}

.accordion-body ul, .accordion-body ol {
  padding-left: 1.4rem;
  margin-bottom: 1.25rem;
}

/* FORMS */
.form-group { margin-bottom: 1.25rem; }
.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-textarea { min-height: 120px; resize: vertical; }

.form-feedback {
  display: none;
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  font-weight: 600;
  font-size: 0.95rem;
}
.form-feedback.success { background: var(--emerald-light); color: var(--emerald); border: 1px solid var(--emerald); }
.form-feedback.error { background: var(--rose-light); color: var(--rose); border: 1px solid var(--rose); }

/* FOOTER */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.95rem;
  margin: 0.75rem 0;
  color: var(--text-muted);
}

/* SOCIAL ICONS */
.social-links {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.social-icon-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
  text-decoration: none;
}

.social-icon-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px var(--accent-glow);
}

.social-icon-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--accent);
  transform: translateX(2px);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .header-nav { display: none; }
  .hamburger { display: block; }
  .founder-card { grid-template-columns: 1fr; text-align: center; }
  .founder-avatar { margin: 0 auto; }
  .founder-badges { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-search-box { flex-direction: column; padding: 0.75rem; }
  .hero-search-input { width: 100%; text-align: center; }
  .hero-cta-group .btn { width: 100%; }
  .accordion-header-btn { padding: 1.2rem 1.25rem; font-size: 1.1rem; }
  .accordion-body { padding: 0 1.25rem 1.5rem; }
}