/**
 * Funobotz Discovery World Hackathon Evaluation Platform
 * Main Design System & UI Stylesheet
 * Brand Colors: #FFFFFF (Background), #FEB449 (Warm Gold/Yellow Accent), #0F172A (Deep Slate)
 */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --bg-primary: #FFFFFF;
  --bg-secondary: #F8FAFC;
  --bg-tertiary: #F1F5F9;
  --surface: #FFFFFF;
  --surface-border: #E2E8F0;
  --surface-hover: #F8FAFC;

  --accent-gold: #FEB449;
  --accent-gold-hover: #F59E0B;
  --accent-gold-light: #FFFBEB;
  --accent-gold-border: #FDE68A;

  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --text-inverse: #FFFFFF;

  --color-success: #10B981;
  --color-success-bg: #ECFDF5;
  --color-success-border: #A7F3D0;

  --color-danger: #EF4444;
  --color-danger-bg: #FEF2F2;
  --color-danger-border: #FECACA;

  --color-warning: #F59E0B;
  --color-warning-bg: #FFFBEB;
  --color-warning-border: #FDE68A;

  --color-info: #3B82F6;
  --color-info-bg: #EFF6FF;
  --color-info-border: #BFDBFE;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --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, 0.05);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-secondary);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 15px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

a {
  color: var(--text-main);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-gold-hover);
}

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Navbar */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--surface-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-divider {
  width: 1px;
  height: 28px;
  background: var(--surface-border);
}

.brand-subtext {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  background: var(--bg-tertiary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--accent-gold);
  color: #000000;
  box-shadow: 0 2px 4px rgba(254, 180, 73, 0.25);
}

.btn-primary:hover {
  background-color: var(--accent-gold-hover);
  color: #000000;
}

.btn-secondary {
  background-color: var(--surface);
  color: var(--text-main);
  border-color: var(--surface-border);
}

.btn-secondary:hover {
  background-color: var(--surface-hover);
  border-color: #CBD5E1;
}

.btn-dark {
  background-color: var(--text-main);
  color: #FFFFFF;
}

.btn-dark:hover {
  background-color: #1E293B;
  color: #FFFFFF;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

/* Cards & Surfaces */
.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--surface-border);
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-gold {
  background: var(--accent-gold-light);
  color: #B45309;
  border: 1px solid var(--accent-gold-border);
}

.badge-success {
  background: var(--color-success-bg);
  color: #065F46;
  border: 1px solid var(--color-success-border);
}

.badge-danger {
  background: var(--color-danger-bg);
  color: #991B1B;
  border: 1px solid var(--color-danger-border);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: #92400E;
  border: 1px solid var(--color-warning-border);
}

.badge-secondary {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  border: 1px solid var(--surface-border);
}

/* Alerts */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}

.alert-success { background: var(--color-success-bg); border-color: var(--color-success-border); color: #065F46; }
.alert-danger { background: var(--color-danger-bg); border-color: var(--color-danger-border); color: #991B1B; }
.alert-warning { background: var(--color-warning-bg); border-color: var(--color-warning-border); color: #92400E; }
.alert-info { background: var(--color-info-bg); border-color: var(--color-info-border); color: #1E40AF; }

.alert-icon { font-size: 18px; font-weight: bold; }
.alert-text { flex: 1; }
.alert-close { background: none; border: none; font-size: 20px; cursor: pointer; color: inherit; line-height: 1; }

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-label .required {
  color: var(--color-danger);
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-main);
  background: #FFFFFF;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(254, 180, 73, 0.2);
}

.form-control::placeholder {
  color: var(--text-light);
}

.form-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform 0.25s ease;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 20px;
  font-weight: 700;
}

.modal-body {
  padding: 28px;
}

.modal-footer {
  padding: 18px 28px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--surface-border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
}

/* Hero Section */
.hero-section {
  background: #FFFFFF;
  border-bottom: 1px solid var(--surface-border);
  padding: 60px 0;
  text-align: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-gold-light);
  color: #92400E;
  border: 1px solid var(--accent-gold-border);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  color: var(--text-main);
  max-width: 820px;
  margin: 0 auto 16px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 28px;
}

/* Theme Cards Grid */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.theme-card {
  background: #FFFFFF;
  border: 2px solid var(--surface-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

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

.theme-card.selected {
  border-color: var(--accent-gold);
  background: #FFFDF9;
  box-shadow: 0 0 0 3px rgba(254, 180, 73, 0.3);
}

.theme-card-header {
  background: var(--bg-tertiary);
  padding: 24px;
  text-align: center;
  border-bottom: 1px solid var(--surface-border);
}

.theme-icon {
  font-size: 42px;
  margin-bottom: 8px;
}

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

.theme-card-title {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 10px;
}

.theme-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex: 1;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: #FFFFFF;
  text-align: left;
  font-size: 14px;
}

.data-table th {
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 2px solid var(--surface-border);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.5px;
}

.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--surface-border);
  color: var(--text-main);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background: var(--bg-tertiary);
}

.data-table tbody tr.highlight-row {
  background: #FFFBEB !important;
  font-weight: 600;
}

/* Countdown Banner */
.countdown-box {
  background: linear-gradient(135deg, #0F172A, #1E293B);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  box-shadow: var(--shadow-md);
}

.countdown-digits {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.countdown-num {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1;
}

.countdown-label {
  font-size: 11px;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Footer */
.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--surface-border);
  padding: 36px 0;
  margin-top: auto;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .navbar { height: auto; padding: 14px 0; flex-direction: column; gap: 14px; }
  .nav-links { flex-wrap: wrap; justify-content: center; gap: 12px; }
  .hero-title { font-size: 28px; }
  .countdown-box { flex-direction: column; gap: 16px; text-align: center; }
  .theme-grid { grid-template-columns: 1fr; }
}

/* Funobotz Character Showcase Cards */
.character-card {
  background: #FFFFFF;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.character-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 30px -6px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(254, 180, 73, 0.5);
  border-color: rgba(254, 180, 73, 0.6);
}

.character-img-wrap {
  position: relative;
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  background: radial-gradient(circle, rgba(254, 180, 73, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.character-img {
  max-height: 195px;
  max-width: 90%;
  object-fit: contain;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.35s ease;
  filter: drop-shadow(0 10px 18px rgba(15, 23, 42, 0.12));
}

.character-card:hover .character-img {
  transform: translateY(-8px) scale(1.08);
  filter: drop-shadow(0 16px 26px rgba(254, 180, 73, 0.38));
}

.character-zoom-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(4px);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 5px;
  opacity: 0.85;
  transition: all 0.2s ease;
  pointer-events: none;
}

.character-card:hover .character-zoom-badge {
  opacity: 1;
  background: var(--primary-accent);
  color: #0F172A;
  transform: scale(1.05);
}

/* Character Zoom Viewer Lightbox */
.char-zoom-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  padding: 24px;
}

.char-zoom-overlay.active {
  opacity: 1;
  visibility: visible;
}

.char-zoom-modal {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  max-width: 960px;
  width: 100%;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  transform: scale(0.92);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.char-zoom-overlay.active .char-zoom-modal {
  transform: scale(1);
}

.char-zoom-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #FAFAFA;
}

.char-zoom-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.char-zoom-btn {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  color: #0F172A;
  border-radius: 8px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.char-zoom-btn:hover {
  background: var(--primary-accent);
  border-color: var(--primary-accent);
  color: #0F172A;
}

.char-zoom-body {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  flex: 1;
  overflow: hidden;
  min-height: 440px;
}

@media (max-width: 768px) {
  .char-zoom-body {
    grid-template-columns: 1fr;
    overflow-y: auto;
  }
}

.char-zoom-viewport {
  background: radial-gradient(circle, #F8FAFC 0%, #E2E8F0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 30px;
  user-select: none;
  cursor: zoom-in;
}

.char-zoom-viewport.zoomed {
  cursor: grab;
}

.char-zoom-viewport.zoomed:active {
  cursor: grabbing;
}

.char-zoom-img {
  max-height: 380px;
  max-width: 100%;
  object-fit: contain;
  transition: transform 0.2s cubic-bezier(0.2, 0, 0.2, 1);
  filter: drop-shadow(0 14px 28px rgba(15, 23, 42, 0.18));
  transform-origin: center center;
}

.char-zoom-sidebar {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-y: auto;
  background: #FFFFFF;
}

.char-nav-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #E2E8F0;
  border-radius: 50%;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
  z-index: 10;
}

.char-nav-arrow:hover {
  background: var(--primary-accent);
  color: #0F172A;
  transform: translateY(-50%) scale(1.1);
}

.char-nav-prev { left: 14px; }
.char-nav-next { right: 14px; }

/* Multi-Step Wizard Progress Bar */
.wizard-progress-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
  background: #FFFFFF;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  gap: 6px;
}

.wizard-progress-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 700;
  color: #94A3B8;
  cursor: pointer;
  user-select: none;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.wizard-progress-step .step-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #E2E8F0;
  color: #64748B;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  font-weight: 800;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.wizard-progress-step.active {
  color: #0F172A;
}

.wizard-progress-step.active .step-circle {
  background: #FEB449 !important;
  color: #0F172A !important;
  box-shadow: 0 0 0 4px rgba(254, 180, 73, 0.35);
  transform: scale(1.12);
}

.wizard-progress-step.completed {
  color: #0F172A;
}

.wizard-progress-step.completed .step-circle {
  background: #10B981 !important;
  color: #FFFFFF !important;
  transform: scale(1.02);
}

.wizard-progress-line {
  flex: 1;
  min-width: 14px;
  height: 2px;
  background: #E2E8F0;
  margin: 0 8px;
  transition: background 0.35s ease;
}

.wizard-progress-line.completed {
  background: #10B981;
}