/* ====================================================
   LiveSpark — Global Design System
   Premium dark theme with glassmorphism & animations
   ==================================================== */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --color-bg: #0a0b14;
  --color-surface: #12142099;
  --color-surface-solid: #121420;
  --color-surface-2: #1c1f30;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.18);

  --color-primary: #6c63ff;
  --color-primary-hover: #7c75ff;
  --color-primary-glow: rgba(108, 99, 255, 0.35);

  --color-accent: #ff6b9d;
  --color-accent-2: #00d4aa;
  --color-accent-3: #ffd166;

  --color-text-primary: #f0f1ff;
  --color-text-secondary: #9098c1;
  --color-text-muted: #555e85;

  --color-success: #00d4aa;
  --color-warning: #ffd166;
  --color-danger: #ff6b6b;

  /* Typography */
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 24px var(--color-primary-glow);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 450ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

/* Animated mesh gradient background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 10%, rgba(108, 99, 255, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(255, 107, 157, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(0, 212, 170, 0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Typography ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1rem;
}

p {
  color: var(--color-text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

/* ---------- Layout ---------- */
.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ---------- Glass Card ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  border-color: var(--color-border-hover);
}

.card--elevated {
  background: var(--color-surface-2);
  box-shadow: var(--shadow-lg);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  transition: background var(--transition-fast);
}

.btn:hover::after {
  background: rgba(255, 255, 255, 0.06);
}

.btn:active::after {
  background: rgba(0, 0, 0, 0.1);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  color: #fff;
  box-shadow: 0 4px 16px rgba(108, 99, 255, 0.4);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(108, 99, 255, 0.5);
}

.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), #ff8a65);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 107, 157, 0.35);
}

.btn--accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 107, 157, 0.5);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
  background: rgba(255, 255, 255, 0.04);
}

.btn--danger {
  background: rgba(255, 107, 107, 0.15);
  color: var(--color-danger);
  border: 1px solid rgba(255, 107, 107, 0.3);
}

.btn--danger:hover {
  background: rgba(255, 107, 107, 0.25);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
}

/* ---------- Form Inputs ---------- */
.input,
.textarea,
.select {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text-primary);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-muted);
}

.input:focus,
.textarea:focus,
.select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.2);
}

.textarea {
  resize: vertical;
  min-height: 80px;
}

.select option {
  background: var(--color-surface-solid);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------- Badge ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--primary {
  background: rgba(108, 99, 255, 0.2);
  color: var(--color-primary);
}

.badge--success {
  background: rgba(0, 212, 170, 0.2);
  color: var(--color-success);
}

.badge--warning {
  background: rgba(255, 209, 102, 0.2);
  color: var(--color-warning);
}

.badge--accent {
  background: rgba(255, 107, 157, 0.2);
  color: var(--color-accent);
}

/* ---------- Slide Vote Options ---------- */
.vote-option {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.vote-option:hover {
  border-color: var(--color-primary);
  background: rgba(108, 99, 255, 0.1);
  transform: translateX(4px);
}

.vote-option.selected {
  border-color: var(--color-primary);
  background: rgba(108, 99, 255, 0.2);
  box-shadow: var(--shadow-glow);
}

/* ---------- Star Rating ---------- */
.star-rating {
  display: flex;
  gap: var(--space-3);
}

.star {
  font-size: 2.5rem;
  cursor: pointer;
  transition: transform var(--transition-fast), filter var(--transition-fast);
  filter: grayscale(1) opacity(0.4);
}

.star:hover,
.star.active {
  filter: grayscale(0) opacity(1);
  transform: scale(1.15);
}

/* ---------- Bar Chart ---------- */
.bar-chart {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.bar-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.bar-label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  width: 120px;
  flex-shrink: 0;
  word-break: break-word;
  line-height: 1.3;
}

.bar-track {
  flex: 1;
  height: 24px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), #8b5cf6);
  border-radius: var(--radius-sm);
  transition: width 600ms cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  padding-left: var(--space-3);
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  min-width: 36px;
}

.bar-count {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  min-width: 32px;
  text-align: right;
}

/* ---------- Navbar ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: rgba(10, 11, 20, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.navbar-brand {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  text-decoration: none;
}

@media (max-width: 540px) {
  .navbar {
    padding: var(--space-3) var(--space-4);
    gap: var(--space-2);
  }

  .navbar-hide-mobile {
    display: none !important;
  }

  .btn--sm {
    padding: var(--space-2) var(--space-3);
    font-size: 0.78rem;
  }
}

/* ---------- Hero Section ---------- */
.hero {
  flex: 1;
  padding: var(--space-16) 0;
  text-align: center;
}

.hero-title {
  background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-5);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-10);
}

/* ---------- Code / Short Code ---------- */
.session-code {
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 800;
  letter-spacing: 0.25em;
  background: linear-gradient(135deg, var(--color-accent-3), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-variant-numeric: tabular-nums;
}

/* ---------- Live Dot ---------- */
.live-dot {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-success);
}

.live-dot::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.3);
  }
}

/* ---------- Divider ---------- */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-6) 0;
}

/* ---------- Text Utilities ---------- */
.text-muted {
  color: var(--color-text-muted);
}

.text-secondary {
  color: var(--color-text-secondary);
}

.text-primary-color {
  color: var(--color-primary);
}

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

.text-success {
  color: var(--color-success);
}

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

/* ---------- Flex Utilities ---------- */
.flex {
  display: flex;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
  gap: var(--space-3);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}

/* ---------- Grid ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin: var(--space-4);
}

@media (max-width: 768px) {

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .container,
  .container--narrow {
    padding: 0 var(--space-4);
  }

  .hero {
    padding: var(--space-10) 0;
  }
}

/* ---------- Loading Spinner ---------- */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- Slide Builder ---------- */
.slide-item {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  transition: border-color var(--transition-base);
}

.slide-item:hover {
  border-color: var(--color-border-hover);
}

.slide-type-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  color: #fff;
}

.slide-type-tag--multiple-choice {
  background: var(--color-primary);
}

.slide-type-tag--word-cloud {
  background: var(--color-accent-2);
}

.slide-type-tag--rating {
  background: var(--color-accent-3);
  color: #333;
}

.slide-type-tag--open-text {
  background: var(--color-accent);
}

/* ---------- Word Cloud ---------- */
.word-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  min-height: 180px;
}

.word-cloud-word {
  font-weight: 700;
  transition: transform var(--transition-base), color var(--transition-slow);
  cursor: default;
  white-space: nowrap;
}

/* ---------- Open Text Feed ---------- */
.text-feed {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-height: 400px;
  overflow-y: auto;
}

.text-feed-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: 0.95rem;
  animation: slideInUp 0.3s ease forwards;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- QR Code wrapper ---------- */
.qr-wrapper {
  background: #fff;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  display: inline-block;
}

/* ---------- Footer ---------- */
.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-6) var(--space-4);
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

.footer a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer a:hover {
  color: var(--color-primary-hover);
}

.footer-github {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-hover);
}