/* ============================================
   SISTEMA DE GERENCIAMENTO DE BANNERS
   Design Moderno & Profissional
   ============================================ */

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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #06b6d4;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #1e293b;
    --darker: #0f172a;
    --light: #f8fafc;
    --gray: #64748b;
    --gray-light: #e2e8f0;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-dark: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--darker);
    color: var(--light);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============================================
   LAYOUT PRINCIPAL
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Moderno */
.main-header {
    background: var(--gradient-dark);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    position: relative;
    overflow: hidden;
}

.main-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-section h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-section p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-top: 5px;
}

/* ============================================
   LOGIN NO HEADER (INDEX)
   ============================================ */

.header-login {
    display: flex;
    gap: 10px;
    align-items: center;
}

.header-login input {
    padding: 10px 15px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.05);
    color: var(--light);
    font-size: 0.9rem;
    width: 200px;
    transition: var(--transition);
}

.header-login input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255,255,255,0.1);
}

.header-login input::placeholder {
    color: var(--gray);
}

/* ============================================
   BOTÕES
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--light);
    border: 2px solid rgba(255,255,255,0.2);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--primary);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: var(--dark);
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition);
}

.card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title .icon {
    font-size: 1.5rem;
}

/* ============================================
   FORMULÁRIOS
   ============================================ */

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-light);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.05);
    color: var(--light);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255,255,255,0.1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
}

/* ============================================
   ALERTAS
   ============================================ */

.alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    color: var(--danger);
}

/* ============================================
   TABELAS
   ============================================ */

.table-container {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.1);
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.table th {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-light);
    font-weight: 600;
    text-align: left;
    padding: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.table td {
    padding: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--gray-light);
}

.table tr:hover td {
    background: rgba(255,255,255,0.02);
}

.table tr:last-child td {
    border-bottom: none;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-image {
    background: rgba(139, 92, 246, 0.2);
    color: #a78bfa;
}

.badge-html {
    background: rgba(6, 182, 212, 0.2);
    color: #67e8f9;
}

/* ============================================
   CÓDIGO/COPY AREA
   ============================================ */

.code-block {
    background: var(--darker);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-sm);
    padding: 20px;
    position: relative;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    color: #a5b4fc;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.code-title {
    font-size: 0.9rem;
    color: var(--gray);
    font-weight: 600;
}

/* ============================================
   LAYOUTS ESPECÍFICOS
   ============================================ */

/* Index - Hero Section */
.hero-section {
    padding: 60px 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Preview Banner */
.banner-preview {
    background: var(--dark);
    border-radius: var(--radius);
    padding: 1px;
    margin: 40px 0;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
}

.banner-preview iframe {
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
}

/* Grid de Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

/* Painel - Layout em Grid */
.painel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .painel-grid {
        grid-template-columns: 1fr;
    }

    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .header-login {
        width: 100%;
        flex-direction: column;
    }

    .header-login input {
        width: 100%;
    }
}

/* ============================================
   UTILITÁRIOS
   ============================================ */

.text-center { text-align: center; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-primary { color: var(--primary-light); }

.mt-20 { margin-top: 20px; }
.mb-20 { margin-bottom: 20px; }

.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    margin: 40px 0;
}

/* Animações */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.pulse {
    animation: pulse 2s infinite;
}

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

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

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

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

/* Estilos para preview de banners */
.banner-preview {
    transition: transform 0.2s;
    cursor: pointer;
}

.banner-preview:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* Badges */
.badge-image {
    background: rgba(102, 126, 234, 0.2);
    color: #667eea;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.badge-html {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

/* Ajustes na tabela */
.table td {
    vertical-align: middle;
}

/* ============================================
   SEÇÃO DE BANNERS 300x250 LADO A LADO
   ============================================ */

.banners-300x250-section {
    padding: 40px 0;
    margin-top: 20px;
}

.banners-300x250-grid {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
}

.banner-300x250-item {
    background: var(--dark);
    border-radius: var(--radius);
    padding: 10px;
    border: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    transition: var(--transition);
}

.banner-300x250-item:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.banner-300x250-item iframe {
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    display: block;
    margin: 0 auto;
}

.banner-label {
    margin-top: 15px;
    color: var(--gray);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Responsivo para mobile */
@media (max-width: 768px) {
    .banners-300x250-grid {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    
    .banner-300x250-item {
        width: 100%;
        max-width: 340px;
    }
}