/* ============================================
   The Still Flow - Games V2 (Premium Design)
   ============================================ */

/* === CSS Variables === */
:root {
  --sf-primary: #2d5a3d;
  --sf-primary-light: #4a8c6b;
  --sf-primary-dark: #1a3a25;
  --sf-accent: #7cb897;
  --sf-gold: #d4a574;
  --sf-gold-light: #e8c4a0;
  --sf-bg: #0f1a14;
  --sf-bg-card: rgba(255, 255, 255, 0.08);
  --sf-text: #e8ede9;
  --sf-text-muted: #8fa898;
  --sf-glass: rgba(255, 255, 255, 0.05);
  --sf-glass-border: rgba(255, 255, 255, 0.1);
  --sf-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --sf-shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
  --sf-radius: 20px;
  --sf-radius-sm: 12px;
  --sf-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--sf-bg);
  color: var(--sf-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* === Animated Background === */
.sf-bg-animated {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #0a120e 0%, #162a1e 50%, #0f1a14 100%);
}

.sf-bg-animated::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(74, 140, 107, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(212, 165, 116, 0.1) 0%, transparent 40%);
  animation: sf-bg-float 20s ease-in-out infinite;
}

@keyframes sf-bg-float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(1deg); }
  66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

/* === Particles === */
.sf-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.sf-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--sf-accent);
  border-radius: 50%;
  opacity: 0;
  animation: sf-particle-float 15s infinite;
}

@keyframes sf-particle-float {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 0.6; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* === Container === */
.sf-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* === Header === */
.sf-header {
  background: linear-gradient(180deg, rgba(45, 90, 61, 0.3) 0%, transparent 100%);
  padding: 40px 0 60px;
  text-align: center;
  position: relative;
}

.sf-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sf-glass-border), transparent);
}

.sf-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--sf-text) 0%, var(--sf-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.sf-header p {
  color: var(--sf-text-muted);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto;
}

.sf-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--sf-accent);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 24px;
  transition: var(--sf-transition);
}

.sf-back:hover {
  color: var(--sf-gold);
  transform: translateX(-4px);
}

/* === Glass Card === */
.sf-glass-card {
  background: var(--sf-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--sf-glass-border);
  border-radius: var(--sf-radius);
  padding: 32px;
  box-shadow: var(--sf-shadow);
  transition: var(--sf-transition);
}

.sf-glass-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--sf-shadow-lg);
  transform: translateY(-4px);
}

/* === Buttons === */
.sf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--sf-radius-sm);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--sf-transition);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.sf-btn-primary {
  background: linear-gradient(135deg, var(--sf-primary) 0%, var(--sf-primary-light) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(45, 90, 61, 0.4);
}

.sf-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(45, 90, 61, 0.5);
}

.sf-btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.sf-btn-primary:hover::before {
  left: 100%;
}

.sf-btn-gold {
  background: linear-gradient(135deg, var(--sf-gold) 0%, var(--sf-gold-light) 100%);
  color: var(--sf-primary-dark);
  box-shadow: 0 4px 15px rgba(212, 165, 116, 0.4);
}

.sf-btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(212, 165, 116, 0.5);
}

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

.sf-btn-ghost:hover {
  background: var(--sf-glass);
  border-color: var(--sf-accent);
}

.sf-btn-large {
  padding: 18px 36px;
  font-size: 1.1rem;
  border-radius: 16px;
}

/* === Game Grid === */
.sf-games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  padding: 40px 0;
}

/* === Game Card === */
.sf-game-card {
  background: var(--sf-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--sf-glass-border);
  border-radius: var(--sf-radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--sf-text);
  display: block;
  transition: var(--sf-transition);
  position: relative;
}

.sf-game-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(74, 140, 107, 0.1) 0%, rgba(212, 165, 116, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.4s;
}

.sf-game-card:hover {
  transform: translateY(-8px);
  border-color: var(--sf-accent);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.sf-game-card:hover::before {
  opacity: 1;
}

.sf-game-card-icon {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.sf-game-card-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--sf-primary-dark) 0%, var(--sf-primary) 100%);
}

.sf-game-card-icon::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
}

.sf-game-card-icon svg {
  width: 64px;
  height: 64px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
  transition: transform 0.4s ease;
}

.sf-game-card:hover .sf-game-card-icon svg {
  transform: scale(1.1) rotate(5deg);
}

.sf-game-card-body {
  padding: 24px;
  position: relative;
  z-index: 1;
}

.sf-game-card-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--sf-text);
}

.sf-game-card-desc {
  font-size: 0.9rem;
  color: var(--sf-text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.sf-game-card-tag {
  display: inline-block;
  background: rgba(124, 184, 151, 0.2);
  color: var(--sf-accent);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-right: 8px;
  margin-bottom: 8px;
}

/* === Quiz Styles === */
.sf-quiz-progress {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}

.sf-quiz-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--sf-glass-border);
  transition: var(--sf-transition);
}

.sf-quiz-dot.active {
  background: var(--sf-accent);
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(124, 184, 151, 0.5);
}

.sf-quiz-dot.completed {
  background: var(--sf-gold);
}

.sf-quiz-question {
  font-size: 1.4rem;
  text-align: center;
  margin-bottom: 32px;
  color: var(--sf-text);
  font-weight: 500;
}

.sf-quiz-options {
  display: grid;
  gap: 12px;
}

.sf-quiz-option {
  background: var(--sf-glass);
  border: 1px solid var(--sf-glass-border);
  border-radius: var(--sf-radius-sm);
  padding: 18px 24px;
  cursor: pointer;
  transition: var(--sf-transition);
  font-family: inherit;
  font-size: 1rem;
  text-align: left;
  color: var(--sf-text);
}

.sf-quiz-option:hover {
  border-color: var(--sf-accent);
  background: rgba(124, 184, 151, 0.1);
  transform: translateX(8px);
}

.sf-quiz-option.selected {
  border-color: var(--sf-accent);
  background: rgba(124, 184, 151, 0.2);
}

.sf-quiz-option.correct {
  border-color: #4caf50;
  background: rgba(76, 175, 80, 0.2);
}

.sf-quiz-option.wrong {
  border-color: #f44336;
  background: rgba(244, 67, 54, 0.2);
}

/* === Breathing Animation === */
.sf-breathing-circle {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sf-primary) 0%, var(--sf-accent) 100%);
  margin: 40px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.3rem;
  font-weight: 500;
  transition: transform 4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 60px rgba(74, 140, 107, 0.4);
  position: relative;
}

.sf-breathing-circle::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: -20px;
  bottom: -20px;
  border-radius: 50%;
  border: 2px solid var(--sf-accent);
  opacity: 0.3;
  animation: sf-breathing-ring 4s ease-in-out infinite;
}

@keyframes sf-breathing-ring {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.1; }
}

.sf-breathing-circle.inhale {
  transform: scale(1.3);
  box-shadow: 0 0 80px rgba(74, 140, 107, 0.6);
}

.sf-breathing-circle.exhale {
  transform: scale(1);
  box-shadow: 0 0 40px rgba(74, 140, 107, 0.3);
}

.sf-breathing-instruction {
  text-align: center;
  font-size: 1.5rem;
  color: var(--sf-accent);
  margin: 24px 0;
  min-height: 40px;
  font-weight: 500;
}

.sf-breathing-timer {
  text-align: center;
  font-size: 4rem;
  color: var(--sf-text);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* === Result Screen === */
.sf-result {
  text-align: center;
  padding: 40px 20px;
}

.sf-result-score {
  font-size: 5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--sf-accent) 0%, var(--sf-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 24px 0;
}

.sf-result-title {
  font-size: 2rem;
  color: var(--sf-text);
  margin-bottom: 12px;
}

.sf-result-desc {
  color: var(--sf-text-muted);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.05rem;
}

.sf-result-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* === Share Buttons === */
.sf-share {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 24px 0;
}

.sf-share-btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--sf-radius-sm);
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  transition: var(--sf-transition);
  color: white;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sf-share-btn:hover {
  transform: translateY(-3px);
}

.sf-share-twitter { background: #1da1f2; }
.sf-share-facebook { background: #4267B2; }

/* === Related Articles === */
.sf-related {
  background: var(--sf-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--sf-glass-border);
  border-radius: var(--sf-radius);
  padding: 32px;
  margin-top: 40px;
}

.sf-related h3 {
  color: var(--sf-text);
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.sf-related-list {
  list-style: none;
}

.sf-related-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--sf-glass-border);
}

.sf-related-list li:last-child {
  border-bottom: none;
}

.sf-related-list a {
  color: var(--sf-accent);
  text-decoration: none;
  transition: var(--sf-transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sf-related-list a:hover {
  color: var(--sf-gold);
  transform: translateX(4px);
}

.sf-related-list a::before {
  content: '→';
  opacity: 0;
  transition: opacity 0.3s;
}

.sf-related-list a:hover::before {
  opacity: 1;
}

/* === Email Capture === */
.sf-email-capture {
  background: linear-gradient(135deg, var(--sf-primary) 0%, var(--sf-primary-light) 100%);
  padding: 40px;
  border-radius: var(--sf-radius);
  text-align: center;
  margin: 32px 0;
}

.sf-email-capture h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: white;
}

.sf-email-capture p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 24px;
}

.sf-email-form {
  display: flex;
  gap: 12px;
  max-width: 400px;
  margin: 0 auto;
}

.sf-email-input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  border-radius: var(--sf-radius-sm);
  font-family: inherit;
  font-size: 1rem;
  background: rgba(255,255,255,0.9);
}

.sf-email-submit {
  padding: 14px 24px;
  background: var(--sf-gold);
  color: var(--sf-primary-dark);
  border: none;
  border-radius: var(--sf-radius-sm);
  font-family: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: var(--sf-transition);
}

.sf-email-submit:hover {
  background: var(--sf-gold-light);
  transform: translateY(-2px);
}

/* === Footer === */
.sf-footer {
  background: rgba(0, 0, 0, 0.3);
  padding: 40px 0;
  text-align: center;
  margin-top: 60px;
  border-top: 1px solid var(--sf-glass-border);
}

.sf-footer p {
  color: var(--sf-text-muted);
  font-size: 0.9rem;
}

.sf-footer a {
  color: var(--sf-accent);
  text-decoration: none;
}

/* === Animations === */
@keyframes sf-fadeIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes sf-pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes sf-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(124, 184, 151, 0.3); }
  50% { box-shadow: 0 0 40px rgba(124, 184, 151, 0.6); }
}

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

.sf-glow {
  animation: sf-glow 3s ease infinite;
}

/* === Responsive === */
@media (max-width: 768px) {
  .sf-header h1 {
    font-size: 1.8rem;
  }

  .sf-games-grid {
    grid-template-columns: 1fr;
  }

  .sf-breathing-circle {
    width: 180px;
    height: 180px;
  }

  .sf-email-form {
    flex-direction: column;
  }

  .sf-breathing-timer {
    font-size: 3rem;
  }

  .sf-result-score {
    font-size: 3.5rem;
  }
}

/* === New Game Cards === */
.sf-card-new {
  border-color: rgba(212, 165, 116, 0.45) !important;
  box-shadow: 0 0 22px rgba(212, 165, 116, 0.18) !important;
}
.sf-card-new .sf-game-card-title::after {
  content: ' ✨';
  color: var(--sf-gold);
}

/* === Completed Badge on Game Cards === */
.sf-done-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, var(--sf-primary), var(--sf-accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  box-shadow: 0 2px 10px rgba(74, 140, 107, 0.5);
  z-index: 2;
}

.sf-card-done {
  border-color: rgba(212, 165, 116, 0.4) !important;
  box-shadow: 0 0 18px rgba(212, 165, 116, 0.15) !important;
}

/* === Small Phones === */
@media (max-width: 480px) {
  .sf-header {
    padding: 32px 16px 48px;
  }

  .sf-header h1 {
    font-size: 1.5rem;
  }

  .sf-header p {
    font-size: 0.92rem;
  }

  .sf-game-card {
    padding: 14px;
  }

  .sf-game-card-icon svg {
    width: 48px;
    height: 48px;
  }

  .sf-game-card-title {
    font-size: 0.95rem;
  }

  .sf-games-grid {
    gap: 12px;
  }

  .sf-btn {
    width: 100%;
  }

  .sf-result-actions {
    flex-direction: column;
  }

  .sf-result-actions .sf-btn {
    width: 100%;
  }

  .sf-share {
    flex-direction: column;
  }

  .sf-share-btn {
    justify-content: center;
  }

  .sf-breathing-circle {
    width: 140px;
    height: 140px;
  }

  .sf-breathing-timer {
    font-size: 2.2rem;
  }

  .sf-related > div {
    grid-template-columns: 1fr 1fr !important;
  }
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--sf-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--sf-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--sf-primary-light);
}

/* === Selection === */
::selection {
  background: var(--sf-primary);
  color: white;
}