/* 
   Sistema de Design V9 Informática - 2026
   Cores: Azul, Branco, Azul Claro, Petróleo
   Autor: Antigravity
*/

:root {
    --primary: #0C5678; /* Petróleo */
    --primary-light: #167bac;
    --secondary: #00A8E8; /* Azul Vibrante */
    --accent: #E0F2F7; /* Azul Muito Claro */
    --white: #FFFFFF;
    --dark: #1A1A1A;
    --gray-light: #F8F9FA;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.15);
    --glass: rgba(255, 255, 255, 0.7);
    --glass-blur: blur(10px);
}

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

body {
    font-family: 'Outfit', 'Inter', sans-serif;
    background-color: var(--white);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Tipografia */
h1, h2, h3, h4 {
    font-weight: 700;
    color: var(--primary);
}

/* Título no Header */
.v9-header-title {
    color: var(--primary);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1;
}

.v9-header-title small {
    font-size: 1.1rem;
    font-weight: 500;
    display: block;
    color: var(--primary-light);
}

.navbar-v9 .nav-link {
    background: var(--glass);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid rgba(255,255,255,0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar-v9 .nav-link {
    color: var(--primary);
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    transition: color 0.3s;
}

.navbar-v9 .nav-link:hover {
    color: var(--secondary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--white) 0%, var(--accent) 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    opacity: 0.1;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

.btn-v9-primary {
    background-color: var(--primary);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    border: none;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
    text-decoration: none;
    display: inline-block;
}

.btn-v9-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

/* Cards de Produtos */
.product-card {
    background: var(--white);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid var(--accent);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    height: 100%;
    text-align: center;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}

.product-icon {
    font-size: 3rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

/* Área do Cliente / Login */
.client-section {
    background: var(--primary);
    color: white;
    padding: 80px 0;
    border-radius: 50px 50px 0 0;
}

.login-card {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 3rem;
    border-radius: 30px;
}

.form-control-v9 {
    background: rgba(255,255,255,0.9);
    border: none;
    border-radius: 12px;
    padding: 1rem;
}

/* Footer */
footer {
    background: var(--gray-light);
    padding: 40px 0;
    border-top: 1px solid var(--accent);
    text-align: center;
}

.copyright {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 500;
}

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

.animate-fade {
    animation: fadeIn 0.8s ease forwards;
}

/* Botão WhatsApp Flutuante */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    color: #FFF;
    transform: scale(1.1);
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Responsividade Mobile */
@media (max-width: 768px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 25px;
    }
}

/* ─── Seção Material de Estudo ─────────────────────── */
.video-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--accent);
    box-shadow: var(--shadow-sm);
    transition: all 0.35s ease;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}

.video-card .ratio {
    border-radius: 16px 16px 0 0;
    overflow: hidden;
}

.video-card .video-info {
    padding: 1rem 1.2rem;
}

.video-card .video-info p {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
    margin: 0;
}

/* Seção de História e Essência */
.history-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfdfd 0%, #f1f8fc 100%);
    position: relative;
    overflow: hidden;
}

.history-section::before {
    content: '"';
    position: absolute;
    top: 50px;
    right: 10%;
    font-size: 20rem;
    color: var(--primary);
    opacity: 0.03;
    font-style: italic;
}

.history-tag {
    color: var(--secondary);
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 1rem;
}

.history-section h2 {
    color: var(--primary);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    line-height: 1.2;
}

.history-text {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #555;
}

.history-highlight {
    color: var(--primary);
    font-weight: 700;
}

.history-quote {
    font-size: 1.5rem;
    font-style: italic;
    color: var(--primary-light);
    border-left: 5px solid var(--secondary);
    padding-left: 1.5rem;
    margin: 2rem 0;
}