:root {
  --bg-gradient: radial-gradient(circle at 15% 15%, #1a1c2e 0%, #0d0e15 50%, #050508 100%);
  --bg-orb-1: radial-gradient(circle, rgba(120, 119, 198, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
  --bg-orb-2: radial-gradient(circle, rgba(66, 153, 225, 0.12) 0%, rgba(255, 255, 255, 0) 70%);

  --glass-bg-main: rgba(255, 255, 255, 0.06);
  --glass-bg-strong: rgba(255, 255, 255, 0.12);
  --glass-bg-weak: rgba(255, 255, 255, 0.03);
  --glass-bg-interactive: rgba(255, 255, 255, 0.09);

  --glass-border-main: 1px solid rgba(255, 255, 255, 0.14);
  --glass-border-strong: 1px solid rgba(255, 255, 255, 0.25);
  --glass-border-interactive: 1px solid rgba(255, 255, 255, 0.35);

  --glass-blur-main: blur(28px) saturate(190%);
  --glass-blur-strong: blur(40px) saturate(200%);

  --glass-shadow-main: 0 16px 40px -8px rgba(0, 0, 0, 0.35), inset 0 1px 0 0 rgba(255, 255, 255, 0.2);
  --glass-shadow-floating: 0 24px 48px -12px rgba(0, 0, 0, 0.5), inset 0 1px 1px 0 rgba(255, 255, 255, 0.3);

  --font-system: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  --text-primary: rgba(255, 255, 255, 0.95);
  --text-secondary: rgba(255, 255, 255, 0.65);
  --text-tertiary: rgba(255, 255, 255, 0.45);

  --accent-color: #0A84FF;
  --accent-glow: rgba(10, 132, 255, 0.35);
  --accent-gradient: linear-gradient(135deg, #0A84FF 0%, #5E5CE6 100%);

  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-pill: 9999px;

  --ease-ios: cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: 0.18s var(--ease-ios);
  --transition-normal: 0.32s var(--ease-ios);
}

[data-theme="light"] {
  --bg-gradient: radial-gradient(circle at 15% 15%, #f2f3f8 0%, #e4e7f1 50%, #d5d9e8 100%);
  --bg-orb-1: radial-gradient(circle, rgba(160, 175, 255, 0.25) 0%, rgba(255, 255, 255, 0) 70%);
  --bg-orb-2: radial-gradient(circle, rgba(120, 200, 255, 0.2) 0%, rgba(255, 255, 255, 0) 70%);

  --glass-bg-main: rgba(255, 255, 255, 0.45);
  --glass-bg-strong: rgba(255, 255, 255, 0.7);
  --glass-bg-weak: rgba(255, 255, 255, 0.25);
  --glass-bg-interactive: rgba(255, 255, 255, 0.6);

  --glass-border-main: 1px solid rgba(255, 255, 255, 0.6);
  --glass-border-strong: 1px solid rgba(255, 255, 255, 0.85);

  --text-primary: rgba(15, 23, 42, 0.95);
  --text-secondary: rgba(15, 23, 42, 0.65);
  --text-tertiary: rgba(15, 23, 42, 0.45);

  --glass-shadow-main: 0 16px 40px -8px rgba(0, 0, 0, 0.08), inset 0 1px 0 0 rgba(255, 255, 255, 0.8);
}

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

body {
  font-family: var(--font-system);
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

body::before, body::after {
  content: '';
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
body::before { top: -100px; left: -100px; background: var(--bg-orb-1); }
body::after { bottom: -100px; right: -100px; background: var(--bg-orb-2); }

.glass-panel {
  background: var(--glass-bg-main);
  border: var(--glass-border-main);
  box-shadow: var(--glass-shadow-main);
  border-radius: var(--radius-md);
  position: relative;
  z-index: 1;
}

@supports (backdrop-filter: blur(20px)) {
  .glass-panel {
    backdrop-filter: var(--glass-blur-main);
    -webkit-backdrop-filter: var(--glass-blur-main);
  }
}

.glass-nav {
  position: sticky;
  top: 16px;
  margin: 16px auto;
  max-width: 1200px;
  width: calc(100% - 32px);
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  background: var(--glass-bg-strong);
  border: var(--glass-border-strong);
  box-shadow: var(--glass-shadow-floating);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
}

@supports (backdrop-filter: blur(20px)) {
  .glass-nav {
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
  }
}

.glass-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--glass-bg-interactive);
  border: var(--glass-border-main);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  outline: none;
}

.glass-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  border: var(--glass-border-interactive);
}

.glass-btn:active { transform: scale(0.97); }

.glass-btn-primary {
  background: var(--accent-gradient);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.glass-btn-primary:hover {
  box-shadow: 0 6px 24px var(--accent-glow);
  opacity: 0.95;
}

.app-container {
  max-width: 1000px;
  margin: 32px auto;
  padding: 0 16px;
  position: relative;
  z-index: 1;
}

.confession-card {
  padding: 24px;
  margin-bottom: 20px;
  transition: transform var(--transition-normal);
}

.confession-card:hover { transform: translateY(-2px); }

.reaction-bar {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.reaction-btn {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  background: var(--glass-bg-weak);
  border: var(--glass-border-main);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.reaction-btn:hover {
  background: var(--glass-bg-interactive);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.4);
}