/*
 * Radio FM - Sistema de Temas
 * 5 temas exclusivos com design, tipografia e paleta de cores diferentes
 * Copyright (c) 2024 Radio FM - Todos os direitos reservados
 */

/* ============================================================
   VARIAVEIS GLOBAIS E RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s, color 0.3s;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); }

/* ============================================================
   TEMA 1 - CLASSICO DOURADO (Elegante, Serif, Dourado/Preto)
   ============================================================ */
[data-theme="theme1"] {
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Lora', Georgia, serif;
  --font-ui: 'Raleway', sans-serif;

  --accent: #C9A84C;
  --accent-hover: #E8C76A;
  --accent-dark: #8B6914;
  --accent-rgb: 201, 168, 76;

  --bg-primary: #0A0A0A;
  --bg-secondary: #111111;
  --bg-card: #181818;
  --bg-nav: rgba(10, 10, 10, 0.97);
  --bg-player: #0D0D0D;
  --bg-footer: #050505;

  --text-primary: #F0ECD6;
  --text-secondary: #B8A97A;
  --text-muted: #6B5F40;

  --border: rgba(201, 168, 76, 0.2);
  --border-strong: rgba(201, 168, 76, 0.5);
  --shadow: 0 4px 24px rgba(0,0,0,0.6);
  --shadow-card: 0 2px 16px rgba(0,0,0,0.4);
  --radius: 4px;
  --radius-lg: 8px;

  --nav-height: 80px;
  --player-height: 80px;
}

/* ============================================================
   TEMA 2 - MODERNO VERMELHO (Ousado, Sans-Serif, Vermelho/Cinza Escuro)
   ============================================================ */
[data-theme="theme2"] {
  --font-heading: 'Oswald', 'Arial Narrow', sans-serif;
  --font-body: 'Source Sans Pro', 'Arial', sans-serif;
  --font-ui: 'Source Sans Pro', sans-serif;

  --accent: #E53935;
  --accent-hover: #FF5252;
  --accent-dark: #B71C1C;
  --accent-rgb: 229, 57, 53;

  --bg-primary: #121212;
  --bg-secondary: #1A1A1A;
  --bg-card: #1E1E1E;
  --bg-nav: rgba(18, 18, 18, 0.98);
  --bg-player: #0F0F0F;
  --bg-footer: #0A0A0A;

  --text-primary: #EEEEEE;
  --text-secondary: #AAAAAA;
  --text-muted: #666666;

  --border: rgba(229, 57, 53, 0.2);
  --border-strong: rgba(229, 57, 53, 0.5);
  --shadow: 0 4px 20px rgba(0,0,0,0.5);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.3);
  --radius: 2px;
  --radius-lg: 4px;

  --nav-height: 70px;
  --player-height: 75px;
}

/* ============================================================
   TEMA 3 - AZUL PROFISSIONAL (Corporativo, Inter, Azul/Branco)
   ============================================================ */
[data-theme="theme3"] {
  --font-heading: 'Montserrat', 'Helvetica Neue', sans-serif;
  --font-body: 'Inter', 'Helvetica', sans-serif;
  --font-ui: 'Inter', sans-serif;

  --accent: #1565C0;
  --accent-hover: #1E88E5;
  --accent-dark: #0D47A1;
  --accent-rgb: 21, 101, 192;

  --bg-primary: #F5F7FA;
  --bg-secondary: #EBEEF3;
  --bg-card: #FFFFFF;
  --bg-nav: rgba(255, 255, 255, 0.98);
  --bg-player: #1A237E;
  --bg-footer: #0D1B3E;

  --text-primary: #1A1A2E;
  --text-secondary: #4A5568;
  --text-muted: #9AA5B4;

  --border: rgba(21, 101, 192, 0.15);
  --border-strong: rgba(21, 101, 192, 0.4);
  --shadow: 0 4px 20px rgba(21, 101, 192, 0.1);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.08);
  --radius: 8px;
  --radius-lg: 16px;

  --nav-height: 75px;
  --player-height: 80px;
}

[data-theme="theme3"] .site-footer,
[data-theme="theme3"] .player-bar {
  color: #FFFFFF;
}

[data-theme="theme3"] .player-bar {
  background: var(--bg-player);
}

/* ============================================================
   TEMA 4 - ROXO NEON (Moderno, Futurista, Roxo/Neon)
   ============================================================ */
[data-theme="theme4"] {
  --font-heading: 'Exo 2', 'Futura', sans-serif;
  --font-body: 'Nunito', 'Trebuchet MS', sans-serif;
  --font-ui: 'Nunito', sans-serif;

  --accent: #9C27B0;
  --accent-hover: #CE93D8;
  --accent-dark: #6A1B9A;
  --accent-rgb: 156, 39, 176;

  --bg-primary: #0D0520;
  --bg-secondary: #130830;
  --bg-card: #1A0F38;
  --bg-nav: rgba(13, 5, 32, 0.97);
  --bg-player: #110728;
  --bg-footer: #080315;

  --text-primary: #EDE7F6;
  --text-secondary: #B39DDB;
  --text-muted: #7E57C2;

  --border: rgba(156, 39, 176, 0.25);
  --border-strong: rgba(206, 147, 216, 0.5);
  --shadow: 0 4px 30px rgba(156, 39, 176, 0.2);
  --shadow-card: 0 2px 20px rgba(156, 39, 176, 0.15);
  --radius: 12px;
  --radius-lg: 20px;

  --nav-height: 80px;
  --player-height: 85px;
}

/* ============================================================
   TEMA 5 - VERDE TROPICAL (Vibrante, Natureza, Verde/Laranja)
   ============================================================ */
[data-theme="theme5"] {
  --font-heading: 'Poppins', 'Verdana', sans-serif;
  --font-body: 'Poppins', 'Verdana', sans-serif;
  --font-ui: 'Poppins', sans-serif;

  --accent: #2E7D32;
  --accent-hover: #4CAF50;
  --accent-dark: #1B5E20;
  --accent-rgb: 46, 125, 50;

  --bg-primary: #F1F8E9;
  --bg-secondary: #E8F5E9;
  --bg-card: #FFFFFF;
  --bg-nav: rgba(255, 255, 255, 0.97);
  --bg-player: #1B5E20;
  --bg-footer: #1A3D1F;

  --text-primary: #1A3D1F;
  --text-secondary: #4A7C59;
  --text-muted: #81C784;

  --border: rgba(46, 125, 50, 0.2);
  --border-strong: rgba(46, 125, 50, 0.5);
  --shadow: 0 4px 20px rgba(46, 125, 50, 0.1);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
  --radius: 10px;
  --radius-lg: 18px;

  --nav-height: 75px;
  --player-height: 80px;
}

[data-theme="theme5"] .site-footer,
[data-theme="theme5"] .player-bar {
  color: #FFFFFF;
}

[data-theme="theme5"] .player-bar {
  background: var(--bg-player);
}

/* ============================================================
   COMPONENTES GLOBAIS
   ============================================================ */

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* Selecao de texto */
::selection { background: var(--accent); color: #fff; }

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-sm {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Section */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Divider */
.divider {
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 20px auto;
  border-radius: 2px;
}

/* Botoes */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border: none;
  border-radius: var(--radius);
  transition: all 0.25s;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(var(--accent-rgb), 0.1);
  color: var(--accent);
}
.btn-ghost:hover {
  background: rgba(var(--accent-rgb), 0.2);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
  box-shadow: var(--shadow-card);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}

.card-body {
  padding: 24px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-accent { background: rgba(var(--accent-rgb), 0.15); color: var(--accent); }
.badge-live { background: #D32F2F; color: white; animation: pulse-live 2s infinite; }

@keyframes pulse-live {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

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

.form-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.15);
}

.form-control::placeholder { color: var(--text-muted); }

select.form-control { cursor: pointer; }

textarea.form-control { resize: vertical; min-height: 120px; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }

/* Toast */
.toast-container {
  position: fixed;
  bottom: calc(var(--player-height) + 20px);
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  animation: slideInRight 0.3s ease;
  max-width: 320px;
}

.toast.success { border-left-color: #4CAF50; }
.toast.error { border-left-color: #F44336; }
.toast.warning { border-left-color: #FF9800; }

@keyframes slideInRight {
  from { transform: translateX(120%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Loading */
.loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-center {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 60px 20px;
}

/* Overlay */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

/* Modal */
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 95%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
  transition: color 0.2s;
}
.modal-close:hover { color: var(--text-primary); }

.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 12px; justify-content: flex-end; }

/* ============================================================
   RESPONSIVO
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .section-header { margin-bottom: 40px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
}

@media (max-width: 480px) {
  html { font-size: 15px; }
  .btn { padding: 10px 20px; }
  .btn-lg { padding: 12px 28px; }
}