/* ========================================
   VIRALNEWS - ESTILOS GLOBAIS
   Design Clean & Minimalista
   ======================================== */

/* ---------- IMPORTAÇÕES ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- VARIÁVEIS ---------- */
:root {
    /* Cores Primárias */
    --primary: #4A6CF7;
    --primary-dark: #3A56D4;
    --primary-light: #6C8AFF;
    --secondary: #6C63FF;
    --accent: #00C9A7;
    
    /* Cores Neutras */
    --white: #FFFFFF;
    --gray-50: #F8F9FE;
    --gray-100: #EEF0F8;
    --gray-200: #DDE0EA;
    --gray-300: #B8BCCD;
    --gray-400: #8B8BA3;
    --gray-500: #6B6B83;
    --gray-600: #4A4A63;
    --gray-700: #333366;
    --gray-800: #1A1A2E;
    --gray-900: #0D0D1A;
    
    /* Cores de Plataforma */
    --instagram: #E4405F;
    --facebook: #1877F2;
    --tiktok: #000000;
    --tiktok-accent: #00F2EA;
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(74, 108, 247, 0.08);
    --shadow-md: 0 4px 20px rgba(74, 108, 247, 0.12);
    --shadow-lg: 0 8px 40px rgba(74, 108, 247, 0.16);
    --shadow-xl: 0 12px 60px rgba(74, 108, 247, 0.20);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transições */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
}

/* ---------- RESET ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ---------- TIPOGRAFIA ---------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-800);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

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

a:hover {
    color: var(--primary-dark);
}

/* ---------- UTILITÁRIOS ---------- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.flex {
    display: flex;
}
.flex-col {
    flex-direction: column;
}
.items-center {
    align-items: center;
}
.justify-between {
    justify-content: space-between;
}
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }

.grid {
    display: grid;
    gap: var(--spacing-lg);
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.text-center { text-align: center; }
.text-gray { color: var(--gray-400); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

/* ---------- BOTÕES ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 10px 24px;
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}
.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-success {
    background: var(--accent);
    color: var(--white);
}
.btn-success:hover {
    background: #00B897;
    transform: translateY(-2px);
}

.btn-danger {
    background: #EF4444;
    color: var(--white);
}
.btn-danger:hover {
    background: #DC2626;
}

.btn-sm {
    padding: 6px 16px;
    font-size: 0.8125rem;
}
.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

.btn-instagram {
    background: var(--instagram);
    color: var(--white);
}
.btn-instagram:hover {
    background: #D6304F;
    transform: translateY(-2px);
}

.btn-facebook {
    background: var(--facebook);
    color: var(--white);
}
.btn-facebook:hover {
    background: #1666CC;
    transform: translateY(-2px);
}

.btn-tiktok {
    background: var(--tiktok);
    color: var(--white);
}
.btn-tiktok:hover {
    background: #1A1A1A;
    transform: translateY(-2px);
}

/* ---------- CARDS ---------- */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--gray-100);
}

/* ---------- FORMULÁRIOS ---------- */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
    color: var(--gray-800);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(74, 108, 247, 0.1);
}

.form-input::placeholder {
    color: var(--gray-300);
}

.form-error {
    color: #EF4444;
    font-size: 0.8125rem;
    margin-top: var(--spacing-sm);
}

/* ---------- NAVBAR ---------- */
.navbar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gray-800);
    text-decoration: none;
}

.navbar-brand .logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.navbar-nav a {
    color: var(--gray-500);
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--transition);
    text-decoration: none;
}
.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--primary);
}

.navbar-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    cursor: pointer;
}

/* ---------- BADGES ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-primary {
    background: rgba(74, 108, 247, 0.1);
    color: var(--primary);
}
.badge-success {
    background: rgba(0, 201, 167, 0.1);
    color: var(--accent);
}
.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #EF4444;
}
.badge-instagram {
    background: rgba(228, 64, 95, 0.1);
    color: var(--instagram);
}
.badge-facebook {
    background: rgba(24, 119, 242, 0.1);
    color: var(--facebook);
}
.badge-tiktok {
    background: rgba(0, 0, 0, 0.05);
    color: var(--tiktok);
}

/* ---------- ANIMAÇÕES ---------- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.animate-fade {
    animation: fadeIn 0.5s ease-out;
}
.animate-pulse {
    animation: pulse 2s infinite;
}

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

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .navbar-nav {
        display: none;
    }
    .navbar-nav.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--gray-100);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .btn {
        padding: 8px 16px;
        font-size: 0.8125rem;
    }
}