@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap");

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

:root {
  --bg: #fafafe;
  --bg-card: #ffffff;
  --bg-input: #f4f4f8;
  --bg-nav: rgba(255, 255, 255, 0.85);
  --border: #e2e2ea;
  --border-hover: #c8c8d4;
  --text: #1a1a2e;
  --text-secondary: #3a3a52;
  --text-muted: #7a7a94;
  --text-dim: #a0a0b4;
  --accent: #d63384;
  --accent-hover: #c22574;
  --accent-secondary: #8b5cf6;
  --accent-tertiary: #6366f1;
  --gradient: linear-gradient(135deg, #d63384, #8b5cf6);
  --gradient-subtle: linear-gradient(135deg, rgba(214, 51, 132, 0.08), rgba(139, 92, 246, 0.08));
  --success: #10b981;
  --error: #ef4444;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --transition: 0.2s ease;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0c0c18;
    --bg-card: #16162a;
    --bg-input: #1e1e36;
    --bg-nav: rgba(12, 12, 24, 0.85);
    --border: #2a2a46;
    --border-hover: #3a3a5a;
    --text: #eeeef6;
    --text-secondary: #c8c8dc;
    --text-muted: #7a7a9c;
    --text-dim: #5a5a78;
    --accent: #ec4899;
    --accent-hover: #f472b6;
    --accent-secondary: #a78bfa;
    --accent-tertiary: #818cf8;
    --gradient: linear-gradient(135deg, #ec4899, #a78bfa);
    --gradient-subtle: linear-gradient(135deg, rgba(236, 72, 153, 0.1), rgba(167, 139, 250, 0.1));
    --success: #34d399;
    --error: #f87171;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  }
}

:root[data-theme="dark"] {
  --bg: #0c0c18;
  --bg-card: #16162a;
  --bg-input: #1e1e36;
  --bg-nav: rgba(12, 12, 24, 0.85);
  --border: #2a2a46;
  --border-hover: #3a3a5a;
  --text: #eeeef6;
  --text-secondary: #c8c8dc;
  --text-muted: #7a7a9c;
  --text-dim: #5a5a78;
  --accent: #ec4899;
  --accent-hover: #f472b6;
  --accent-secondary: #a78bfa;
  --accent-tertiary: #818cf8;
  --gradient: linear-gradient(135deg, #ec4899, #a78bfa);
  --gradient-subtle: linear-gradient(135deg, rgba(236, 72, 153, 0.1), rgba(167, 139, 250, 0.1));
  --success: #34d399;
  --error: #f87171;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition), color var(--transition);
}

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

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

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  max-width: 960px;
  margin: 0 auto;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.nav-logo:hover {
  color: var(--text);
}

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

.nav-links a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-xs);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg-input);
}

/* Theme toggle */

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: var(--radius-xs);
  font-size: 18px;
  line-height: 1;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: var(--bg-input);
}

/* Hero */

.hero {
  text-align: center;
  padding: 100px 24px 60px;
  max-width: 720px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 52px;
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto 36px;
}

/* Cards / Panels */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

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

.card h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.pricing-card {
  background: var(--gradient-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 32px;
  text-align: center;
  margin: 48px 0 80px;
  box-shadow: var(--shadow-md);
}

.pricing-card h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.pricing-card p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition);
  letter-spacing: -0.01em;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

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

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 2px 8px rgba(214, 51, 132, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(214, 51, 132, 0.35);
}

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

.btn-secondary:hover {
  border-color: var(--border-hover);
  background: var(--bg-input);
}

.btn-danger {
  background: transparent;
  color: var(--error);
  border: 1px solid var(--error);
}

.btn-danger:hover {
  background: var(--error);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 8px 14px;
}

.btn-ghost:hover {
  color: var(--text);
  background: var(--bg-input);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* Forms */

.input-group {
  margin-bottom: 16px;
}

.input-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.input-group input,
.input-group select,
.input-group textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(214, 51, 132, 0.1);
}

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

.error-msg {
  color: var(--error);
  font-size: 13px;
  font-weight: 500;
  margin-top: 8px;
}

.success-msg {
  color: var(--success);
  font-size: 13px;
  font-weight: 500;
  margin-top: 8px;
}

.hidden {
  display: none !important;
}

/* Auth */

.auth-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 80px);
  padding: 40px 24px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
}

.auth-card h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.auth-card .subtitle {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 24px;
}

.auth-card .footer {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
}

/* Steps */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 48px 0 0;
}

.step {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.step:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step .number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.step p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* Dashboard */

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px 0 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.dashboard-header h1 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.subscription-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.subscription-badge.active {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success);
}

.subscription-badge.inactive {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error);
}

/* Card grid */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.scheduled-card {
  display: flex;
  gap: 14px;
  align-items: center;
}

.scheduled-card img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.scheduled-card-info h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}

.scheduled-card-info p {
  font-size: 12px;
  color: var(--text-muted);
}

/* Idol grid */

.idol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.idol-card {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 12px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.idol-card:hover {
  border-color: var(--accent-secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.idol-card.selected {
  border-color: var(--accent);
  background: var(--gradient-subtle);
  box-shadow: 0 0 0 3px rgba(214, 51, 132, 0.15);
}

.idol-card img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 10px;
}

.idol-card .idol-name {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.idol-card .idol-group {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.idol-avatar-placeholder {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient-subtle);
  border: 1px solid var(--border);
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

/* Sections */

.section {
  margin-bottom: 40px;
}

.section h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.date-selects {
  display: flex;
  gap: 12px;
}

.date-selects select {
  flex: 1;
}

/* Toggle group */

.toggle-group {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.toggle-btn {
  flex: 1;
  padding: 11px;
  background: var(--bg-input);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.toggle-btn.active {
  border-color: var(--accent);
  color: var(--text);
  background: var(--gradient-subtle);
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.checkbox-group label {
  font-size: 13px;
  color: var(--text-muted);
}

/* Empty / Loading states */

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state p {
  font-size: 15px;
  margin-bottom: 16px;
}

.loading {
  text-align: center;
  padding: 32px;
  color: var(--text-dim);
  font-size: 14px;
}

/* Footer */

.footer-bar {
  text-align: center;
  padding: 32px 24px;
  color: var(--text-dim);
  font-size: 12px;
  border-top: 1px solid var(--border);
  margin-top: 80px;
}

/* Responsive */

@media (max-width: 640px) {
  .hero {
    padding: 64px 20px 40px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero p {
    font-size: 16px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .idol-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    padding: 12px 16px;
  }
}