/* ============================================
   КОЛЕСО ФОРТУНИ — Design System
   kiri4enko-school.com
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@400;600&family=Montserrat:wght@400;600;700&display=swap');

/* CSS Variables */
:root {
  --color-primary: #CC0000;
  --color-primary-light: #E60000;
  --color-primary-dark: #990000;
  --color-bg: #0D0D0D;
  --color-surface: #1A1A1A;
  --color-border: #333333;
  --color-text: #FFFFFF;
  --color-text-secondary: #AAAAAA;
  --color-gold: #FFD700;
  --color-gold-dark: #B8960F;

  --font-hero: 'Bebas Neue', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Montserrat', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

img {
  max-width: 100%;
  height: auto;
}

/* Container */
.container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1 {
  font-family: var(--font-hero);
  font-size: 32px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.1;
}

h2 {
  font-family: var(--font-body);
  font-size: 24px;
  font-weight: 700;
}

h3 {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 16px 40px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(204, 0, 0, 0.4);
}

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

.btn-primary:disabled {
  background: #555;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
  color: #000;
}

.btn-gold:hover {
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
  padding: 12px 24px;
  font-size: 14px;
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 13px;
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text-secondary);
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--color-text);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition);
}

.form-group input::placeholder {
  color: #666;
}

.form-group input:focus {
  border-color: var(--color-primary);
}

.form-group input.invalid {
  border-color: var(--color-primary);
  animation: shake 0.4s ease;
}

.form-group .error-msg {
  font-size: 12px;
  color: var(--color-primary);
  margin-top: 6px;
  display: none;
}

.form-group input.invalid + .error-msg {
  display: block;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* Footer */
.footer {
  text-align: center;
  padding: 40px 20px;
  margin-top: 60px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 13px;
  line-height: 1.8;
}

.footer a {
  color: var(--color-text-secondary);
  text-decoration: underline;
}

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

/* Pulse Animation */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Glow Animation */
@keyframes glow {
  0%, 100% { box-shadow: 0 0 5px rgba(204, 0, 0, 0.5); }
  50% { box-shadow: 0 0 20px rgba(204, 0, 0, 0.8), 0 0 40px rgba(204, 0, 0, 0.3); }
}

/* Fade In */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

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

/* Jackpot overlay */
.jackpot-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

.jackpot-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.jackpot-content {
  text-align: center;
  animation: jackpotPulse 0.5s ease;
}

.jackpot-content h2 {
  font-family: var(--font-hero);
  font-size: 48px;
  color: var(--color-gold);
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
  animation: blink 0.5s ease infinite alternate;
  margin-bottom: 20px;
}

.jackpot-content p {
  font-size: 18px;
  margin-bottom: 30px;
  max-width: 500px;
}

@keyframes jackpotPulse {
  from { transform: scale(0.5); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes blink {
  from { opacity: 1; }
  to { opacity: 0.7; text-shadow: 0 0 40px rgba(255, 215, 0, 0.8); }
}

/* Accordion */
.accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  overflow: hidden;
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--color-surface);
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  transition: background var(--transition);
  user-select: none;
}

.accordion-header:hover {
  background: #222;
}

.accordion-header .icon {
  transition: transform var(--transition);
  font-size: 12px;
}

.accordion-item.active .accordion-header .icon {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion-item.active .accordion-body {
  max-height: 600px;
}

.accordion-body-inner {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Attempts indicator */
.attempts {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin: 20px 0;
}

.attempt-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  transition: all 0.5s ease;
}

.attempt-dot.used {
  background: #333;
  transform: scale(0.7);
  opacity: 0.4;
}

/* Results table */
.result-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.5s ease;
}

.result-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.result-card .attempt-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.result-card .prize-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}

.result-card .prize-name span {
  color: var(--color-gold);
}

.result-card .buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Responsive */
@media (min-width: 768px) {
  h1 {
    font-size: 56px;
  }

  h2 {
    font-size: 32px;
  }

  h3 {
    font-size: 20px;
  }
}