/* ==========================================================================
   FinGen™ Platform — Shared Stylesheet
   by İFE İstanbul Finans Enstitüsü
   ========================================================================== */

:root {
  /* Colors — derived from landing page identity */
  --ink: #0A0E1A;
  --surface: #131726;
  --surface-2: #1A1F33;
  --surface-3: #232940;
  --accent: #FFD60A;
  --accent-soft: rgba(255, 214, 10, 0.12);
  --accent-strong: rgba(255, 214, 10, 0.25);
  --gold: #E5B547;
  --cream: #F4EFE6;
  --coral: #FF6B6B;
  --success: #4ADE80;
  --muted: #8B92A8;
  --muted-light: #A8AFC4;
  --border: #1F2530;
  --border-strong: #2A3142;

  /* Typography */
  --font-display: 'Fraunces', Georgia, serif;
  --font-sans: 'Geist', sans-serif;
  --font-mono: 'Geist Mono', monospace;

  /* Layout */
  --pad: clamp(1rem, 3vw, 2rem);
  --radius-sm: 0.5rem;
  --radius: 0.75rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;

  /* Transitions */
  --t-fast: 0.15s ease;
  --t-base: 0.25s ease;
  --t-slow: 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--ink);
  color: var(--cream);
  line-height: 1.55;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Subtle noise overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ==========================================================================
   LOGO
   ========================================================================== */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.logo-mark { width: 28px; height: 28px; flex-shrink: 0; }
.logo .gen { font-style: italic; font-weight: 700; }
.logo-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-left: 0.4rem;
  font-style: italic;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--t-fast), background var(--t-fast), border-color var(--t-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--ink);
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 0 0 8px var(--accent-soft);
}
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  color: var(--cream);
  border: 1px solid var(--border-strong);
}
.btn-secondary:hover {
  background: var(--surface);
  border-color: var(--cream);
}

.btn-danger {
  background: var(--coral);
  color: var(--ink);
}
.btn-danger:hover { transform: translateY(-1px); }

.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ==========================================================================
   FORM ELEMENTS
   ========================================================================== */
.field { margin-bottom: 1.25rem; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--cream);
  transition: border-color var(--t-fast);
  font-size: 0.95rem;
}

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

.field-error {
  color: var(--coral);
  font-size: 0.8rem;
  margin-top: 0.4rem;
  min-height: 1em;
}

.field-checkbox {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
}

.field-checkbox input { margin-top: 0.2rem; accent-color: var(--accent); }
.field-checkbox span { font-size: 0.85rem; color: var(--muted-light); line-height: 1.5; }

/* ==========================================================================
   CARDS & PANELS
   ========================================================================== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.card-hover { transition: border-color var(--t-base), transform var(--t-base); }
.card-hover:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   BADGES
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
}

.badge-accent { background: var(--accent-soft); color: var(--accent); }
.badge-gold { background: rgba(229, 181, 71, 0.15); color: var(--gold); }
.badge-success { background: rgba(74, 222, 128, 0.15); color: var(--success); }
.badge-coral { background: rgba(255, 107, 107, 0.15); color: var(--coral); }
.badge-muted { background: var(--surface-2); color: var(--muted); }

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */
.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  min-width: 280px;
  max-width: 360px;
  font-size: 0.9rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  animation: toast-in 0.3s ease forwards;
  pointer-events: auto;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--coral); }
.toast.info { border-left-color: var(--accent); }

@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

.toast.fade-out { animation: toast-out 0.3s ease forwards; }
@keyframes toast-out {
  to { opacity: 0; transform: translateX(20px); }
}

/* ==========================================================================
   AUTH PAGE
   ========================================================================== */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  position: relative;
  z-index: 2;
}

@media (min-width: 900px) { .auth-page { grid-template-columns: 1fr 1fr; } }

.auth-side {
  display: none;
  padding: 3rem;
  background: linear-gradient(135deg, var(--surface) 0%, var(--ink) 100%);
  border-right: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.auth-side::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60%;
  height: 80%;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 60%);
  pointer-events: none;
}

@media (min-width: 900px) { .auth-side { display: flex; flex-direction: column; justify-content: space-between; } }

.auth-side-content {
  position: relative;
  z-index: 2;
  margin-top: 4rem;
}

.auth-tagline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.auth-tagline em { font-style: italic; color: var(--accent); }

.auth-side-meta {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.auth-meta-item .label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.auth-meta-item .value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--cream);
  letter-spacing: -0.02em;
}

.auth-meta-item .value .unit {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--gold);
  margin-left: 0.2rem;
}

.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem var(--pad);
}

.auth-form-wrapper {
  width: 100%;
  max-width: 420px;
}

.auth-tabs {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem;
  margin-bottom: 2rem;
}

.auth-tab {
  flex: 1;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--muted);
  transition: all var(--t-fast);
}

.auth-tab.active {
  background: var(--accent);
  color: var(--ink);
  font-weight: 600;
}

.auth-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.auth-subtitle {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.auth-footer-link {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.auth-footer-link a { color: var(--gold); text-decoration: underline; text-decoration-color: var(--border-strong); }

/* ==========================================================================
   APP LAYOUT
   ========================================================================== */
.app {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
  position: relative;
  z-index: 2;
}

@media (min-width: 900px) {
  .app {
    grid-template-columns: 260px 1fr;
    grid-template-rows: auto 1fr;
  }
}

/* TOP NAV */
.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--pad);
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.4rem 0.4rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
}

.user-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0.5rem;
}
.menu-toggle span { width: 20px; height: 2px; background: var(--cream); border-radius: 1px; }

@media (min-width: 900px) { .menu-toggle { display: none; } }

/* SIDEBAR */
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.5rem 0.75rem;
  position: sticky;
  top: 65px;
  height: calc(100vh - 65px);
  overflow-y: auto;
}

@media (max-width: 899px) {
  .sidebar {
    position: fixed;
    top: 65px;
    left: 0;
    width: 280px;
    z-index: 40;
    transform: translateX(-100%);
    transition: transform var(--t-base);
    border-right: 1px solid var(--border-strong);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 39;
    display: none;
  }
  .sidebar-overlay.open { display: block; }
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  color: var(--muted-light);
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
  transition: background var(--t-fast), color var(--t-fast);
}

.nav-item:hover { background: var(--surface-2); color: var(--cream); }
.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
}
.nav-item.active .nav-icon { color: var(--accent); }
.nav-item .nav-icon { color: var(--muted); flex-shrink: 0; transition: color var(--t-fast); }
.nav-item:hover .nav-icon { color: var(--cream); }

.sidebar-section {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 1.5rem 1rem 0.75rem;
}

.sidebar-footer {
  margin-top: auto;
  padding: 1rem;
  background: var(--surface-2);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.sidebar-footer-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--gold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.sidebar-footer-text {
  font-size: 0.78rem;
  color: var(--muted-light);
  line-height: 1.5;
}

.sidebar-footer-text a { color: var(--gold); text-decoration: underline; text-decoration-color: var(--border-strong); }

/* MAIN CONTENT */
.main {
  padding: 1.5rem var(--pad) 3rem;
  max-width: 1200px;
  width: 100%;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.page-title em { font-style: italic; color: var(--accent); }
.page-subtitle { color: var(--muted); font-size: 1rem; max-width: 60ch; }

/* ==========================================================================
   DASHBOARD
   ========================================================================== */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 700px) { .dashboard-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .dashboard-grid { grid-template-columns: repeat(3, 1fr); } }

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.stat-card .stat-icon {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--gold);
  opacity: 0.5;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--cream);
}

.stat-value .unit {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--gold);
  margin-left: 0.3rem;
}

.stat-value.accent { color: var(--accent); }
.stat-value.gold { color: var(--gold); }
.stat-value.success { color: var(--success); }

.stat-meta {
  font-size: 0.85rem;
  color: var(--muted-light);
  margin-top: 0.3rem;
}

/* Progress bar */
.progress {
  width: 100%;
  height: 8px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--gold));
  border-radius: 999px;
  transition: width var(--t-slow);
}

/* ==========================================================================
   MODULE LIST
   ========================================================================== */
.module-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 700px) { .module-grid { grid-template-columns: repeat(2, 1fr); } }

.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  transition: border-color var(--t-base), transform var(--t-base);
  cursor: pointer;
}

.module-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.module-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
}
.module-card.locked:hover {
  border-color: var(--border);
  transform: none;
}

.module-card.completed {
  border-color: var(--success);
}

.module-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.module-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--gold);
  font-weight: 300;
  letter-spacing: -0.02em;
}

.module-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.module-card p {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.module-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* ==========================================================================
   MODULE DETAIL
   ========================================================================== */
.module-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 900px) { .module-detail { grid-template-columns: 1fr 320px; } }

.lesson-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.lesson-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.lesson-item:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
}

.lesson-item.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.lesson-item.completed .lesson-num {
  background: var(--success);
  color: var(--ink);
  border-color: var(--success);
}

.lesson-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  flex-shrink: 0;
}

.lesson-info { flex: 1; min-width: 0; }
.lesson-info strong { display: block; font-size: 0.95rem; margin-bottom: 0.15rem; }
.lesson-info .lesson-meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

/* Video player */
.video-frame {
  background: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.video-content {
  aspect-ratio: 16 / 9;
  position: relative;
  background: linear-gradient(135deg, var(--surface) 0%, var(--ink) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.video-content::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, var(--accent-soft) 0%, transparent 60%);
}

.video-placeholder {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
}

.video-play {
  width: 80px;
  height: 80px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: var(--ink);
  transition: transform var(--t-fast);
  cursor: pointer;
}

.video-play:hover { transform: scale(1.08); }
.video-play svg { margin-left: 4px; }

.video-demo-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.video-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: var(--ink);
}

.video-meta {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.video-meta .duration {
  font-family: var(--font-mono);
  color: var(--gold);
  letter-spacing: 0.05em;
}

.lesson-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.lesson-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.lesson-content p {
  color: var(--muted-light);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.lesson-content ul {
  list-style: none;
  margin: 1rem 0;
}

.lesson-content li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.6rem;
  color: var(--cream);
  line-height: 1.6;
}

.lesson-content li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
}

.lesson-content strong { color: var(--cream); font-weight: 600; }
.lesson-content em { color: var(--accent); font-style: normal; font-weight: 500; }

.lesson-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   QUIZ
   ========================================================================== */
.quiz-progress {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.quiz-progress-bar {
  flex: 1;
  height: 6px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: var(--accent);
  transition: width var(--t-slow);
}

.quiz-progress-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.quiz-question {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.quiz-q-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.quiz-q-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin-bottom: 1.5rem;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--t-fast);
  text-align: left;
  font-size: 0.95rem;
  width: 100%;
}

.quiz-option:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.quiz-option.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.quiz-option.correct {
  border-color: var(--success);
  background: rgba(74, 222, 128, 0.1);
}

.quiz-option.incorrect {
  border-color: var(--coral);
  background: rgba(255, 107, 107, 0.1);
}

.quiz-option:disabled { cursor: not-allowed; }

.quiz-letter {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
}

.quiz-option.selected .quiz-letter,
.quiz-option.correct .quiz-letter {
  background: var(--accent);
  color: var(--ink);
  border-color: var(--accent);
}

.quiz-option.correct .quiz-letter {
  background: var(--success);
  border-color: var(--success);
}

.quiz-option.incorrect .quiz-letter {
  background: var(--coral);
  color: var(--ink);
  border-color: var(--coral);
}

.quiz-explanation {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--surface-2);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.quiz-explanation strong { color: var(--gold); display: block; margin-bottom: 0.4rem; }

.quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
}

/* Quiz result */
.quiz-result {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.quiz-result-score {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1rem;
}

.quiz-result.passed .quiz-result-score { color: var(--success); }
.quiz-result.failed .quiz-result-score { color: var(--coral); }

.quiz-result h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.quiz-result p {
  color: var(--muted);
  max-width: 50ch;
  margin: 0 auto 2rem;
}

/* ==========================================================================
   BORSA / VIRTUAL EXCHANGE
   ========================================================================== */
.borsa-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 1000px) { .borsa-grid { grid-template-columns: 2fr 1fr; } }

.portfolio-summary {
  background: linear-gradient(135deg, var(--surface) 0%, var(--ink) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.portfolio-balance {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.balance-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.balance-value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1;
}

.balance-change {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}

.balance-change.up { background: rgba(74, 222, 128, 0.15); color: var(--success); }
.balance-change.down { background: rgba(255, 107, 107, 0.15); color: var(--coral); }

.portfolio-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.portfolio-stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.portfolio-stat-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

/* Stock list */
.stocks-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.stocks-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 1rem;
}

.stocks-header h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
}

.stocks-filter {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.4rem 0.85rem;
  background: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--muted);
  transition: all var(--t-fast);
}

.filter-btn:hover { color: var(--cream); }
.filter-btn.active {
  background: var(--accent);
  color: var(--ink);
  border-color: var(--accent);
  font-weight: 500;
}

.stocks-table {
  width: 100%;
  overflow-x: auto;
}

.stock-row {
  display: grid;
  grid-template-columns: 1fr 80px 80px 80px;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
  cursor: pointer;
  transition: background var(--t-fast);
}

.stock-row:hover { background: var(--surface-2); }
.stock-row:last-child { border-bottom: none; }

.stock-row.head {
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: default;
  padding: 0.85rem 1.5rem;
}
.stock-row.head:hover { background: var(--ink); }

.stock-name {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.stock-ticker {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.stock-fullname {
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.stock-price {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-align: right;
}

.stock-change {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-align: right;
}

.stock-change.up { color: var(--success); }
.stock-change.down { color: var(--coral); }

.stock-action {
  display: flex;
  justify-content: flex-end;
}

/* Trade modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(8px);
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  max-width: 480px;
  width: 100%;
  padding: 2rem;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: color var(--t-fast);
}

.modal-close:hover { color: var(--coral); }

.trade-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--ink);
  border-radius: var(--radius);
}

.trade-info-item .label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.trade-info-item .value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
}

.trade-tabs {
  display: flex;
  background: var(--ink);
  border-radius: 999px;
  padding: 0.25rem;
  margin-bottom: 1rem;
}

.trade-tab {
  flex: 1;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

.trade-tab.active {
  background: var(--accent);
  color: var(--ink);
  font-weight: 600;
}

.trade-tab.active.sell { background: var(--coral); }

.trade-summary {
  display: flex;
  justify-content: space-between;
  padding: 1rem;
  background: var(--ink);
  border-radius: var(--radius);
  margin: 1rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.trade-summary .label { color: var(--muted); }
.trade-summary .value { font-weight: 600; }

/* Positions */
.positions-list {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.position-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.position-row:last-child { border-bottom: none; }

.position-info { min-width: 0; }
.position-info strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 0.1rem;
}
.position-info .qty {
  font-size: 0.7rem;
  color: var(--muted);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.position-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-align: right;
}

.position-pl {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: right;
  margin-top: 0.2rem;
}

.position-pl.up { color: var(--success); }
.position-pl.down { color: var(--coral); }

.empty-state {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.empty-state .icon { font-size: 2.5rem; margin-bottom: 0.75rem; opacity: 0.4; }

/* ==========================================================================
   PROFILE
   ========================================================================== */
.profile-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
}

.profile-info h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.3rem;
}

.profile-info p {
  color: var(--muted);
  font-size: 0.9rem;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (min-width: 600px) { .detail-grid { grid-template-columns: 1fr 1fr; } }

.detail-row {
  padding: 1rem;
  background: var(--ink);
  border-radius: var(--radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.detail-row .label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.detail-row .value { font-size: 0.95rem; font-weight: 500; }

/* ==========================================================================
   CERTIFICATE
   ========================================================================== */
.certificate-wrapper {
  background: linear-gradient(135deg, #F4EFE6 0%, #FFE89D 100%);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 5vw, 4rem);
  color: #0A0E1A;
  position: relative;
  overflow: hidden;
  aspect-ratio: 1.41 / 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-family: var(--font-display);
  border: 4px solid var(--gold);
}

.certificate-wrapper::before {
  content: '';
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(229, 181, 71, 0.4);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.cert-locked {
  background: var(--surface);
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--muted);
}

.cert-locked h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--cream);
  font-weight: 500;
}

.cert-locked p {
  max-width: 50ch;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.cert-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.cert-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
}

.cert-brand .gen { font-style: italic; font-weight: 700; }
.cert-brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #6B5D1F;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 400;
  margin-top: 0.3rem;
}

.cert-seal {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--gold);
  color: #0A0E1A;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.7rem;
  text-align: center;
  line-height: 1.1;
}

.cert-body { text-align: center; padding: 1rem 0; }

.cert-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #6B5D1F;
  margin-bottom: 1.5rem;
}

.cert-name {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-style: italic;
  font-weight: 500;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.cert-desc {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  max-width: 50ch;
  margin: 0 auto;
  line-height: 1.6;
  color: #3A3A2A;
}

.cert-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
}

.cert-detail {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #6B5D1F;
}

.cert-detail strong { color: #0A0E1A; display: block; margin-top: 0.2rem; font-family: var(--font-sans); font-size: 0.85rem; }

/* ==========================================================================
   UTILITIES
   ========================================================================== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.text-right { text-align: right; }
.gap-sm { gap: 0.5rem; }
.gap { gap: 1rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.text-accent { color: var(--accent); }
.text-gold { color: var(--gold); }
.text-success { color: var(--success); }
.text-coral { color: var(--coral); }
.hidden { display: none !important; }
.font-mono { font-family: var(--font-mono); }
.font-display { font-family: var(--font-display); }

@media (max-width: 600px) {
  .hide-mobile { display: none !important; }
}

/* Loading spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Smooth fade in for view changes */
.view {
  animation: fade-in 0.3s ease;
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   STREAK BANNER (Dashboard)
   ========================================================================== */
.streak-banner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.streak-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.streak-icon {
  font-size: 1.75rem;
  line-height: 1;
}

.streak-value {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--accent);
}

.streak-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.2rem;
}

.streak-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
}

.streak-cta {
  margin-left: auto;
}

@media (max-width: 640px) {
  .streak-divider { display: none; }
  .streak-banner { gap: 1.5rem; }
  .streak-cta { margin-left: 0; flex-basis: 100%; text-align: center; }
}

.streak-mini {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ==========================================================================
   ACHIEVEMENTS GRID
   ========================================================================== */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.85rem;
}

.achievements-grid-compact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.achievement-card {
  background: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
  transition: border-color var(--t-fast), transform var(--t-fast);
  cursor: default;
}

.achievement-card.unlocked {
  border-color: var(--gold);
  background: linear-gradient(180deg, rgba(229, 181, 71, 0.08) 0%, var(--ink) 100%);
}

.achievement-card.unlocked:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.achievement-card.locked {
  opacity: 0.55;
}

.achievement-icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.achievement-name {
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.3rem;
  color: var(--cream);
}

.achievement-desc {
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.4;
}

/* ==========================================================================
   LEADERBOARD
   ========================================================================== */
.leaderboard-me {
  background: linear-gradient(135deg, var(--surface) 0%, var(--ink) 100%);
  border: 1px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.leaderboard-me-rank {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.leaderboard-me-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  flex: 1;
  min-width: 300px;
}

@media (max-width: 640px) {
  .leaderboard-me-stats { grid-template-columns: repeat(2, 1fr); }
}

.leaderboard {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.leaderboard-header {
  display: grid;
  grid-template-columns: 60px 1.5fr 1fr 90px 100px;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.leaderboard-row {
  display: grid;
  grid-template-columns: 60px 1.5fr 1fr 90px 100px;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  align-items: center;
  border-bottom: 1px solid var(--border);
  transition: background var(--t-fast);
}

.leaderboard-row:last-child {
  border-bottom: none;
}

.leaderboard-row:hover {
  background: var(--surface-2);
}

.leaderboard-row.me {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
}

.leaderboard-row.me:hover {
  background: var(--accent-strong);
}

.leaderboard-rank {
  font-size: 1.5rem;
  text-align: center;
}

@media (max-width: 640px) {
  .leaderboard-header,
  .leaderboard-row {
    grid-template-columns: 50px 1.5fr 70px 80px;
    padding: 0.85rem 1rem;
    gap: 0.5rem;
  }
}