/* =========================================
   VARIÁVEIS (PADRÃO = DARK MODE)
   ========================================= */
:root {
    --primary: #00a099;
    --secondary: #8cc63f;
    
    /* Cores Padrão (Escuras) */
    --bg-color: #0f172a;       
    --text-color: #cbd5e1;     
    --card-bg: #1e293b;        
    --border-color: #334155;   
    --shadow-color: rgba(0,0,0,0.3);
}

/* TEMA CLARO (Ativado via classe .light-mode) */
body.light-mode {
    --bg-color: #f8fafc;       
    --text-color: #334155;     
    --card-bg: #ffffff;        
    --border-color: #e2e8f0;   
    --shadow-color: rgba(0,0,0,0.05);
}

/* =========================================
   BASE
   ========================================= */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', sans-serif; }
html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.6;
}

/* =========================================
   NAVBAR (Menu Principal)
   ========================================= */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 5%; 
    min-height: 140px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0; 
    z-index: 1000;
    transition: 0.3s;
}

body.light-mode .navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-bottom: none;
}

.logo img { 
    height: 130px;       
    width: auto;         
    max-width: 450px;    
    display: block;
    object-fit: contain; 
}

.menu { display: flex; align-items: center; gap: 20px; }

.menu a {
    text-decoration: none;
    color: inherit;
    font-weight: 500;
    font-size: 1rem;
    transition: 0.3s;
}
.menu a:hover { color: var(--primary); }

/* BOTÃO PADRÃO (Área do Cliente) */
.btn-login {
    padding: 10px 20px;
    background-color: var(--primary);
    color: white !important;
    border-radius: 5px;
    font-weight: bold;
}
.btn-login:hover { background-color: var(--secondary); }

/* BOTÃO WHATSAPP (Verde) */
.btn-whatsapp {
    padding: 10px 20px;
    background-color: #25D366; /* Verde Oficial do Zap */
    color: white !important;
    border-radius: 5px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
}
.btn-whatsapp:hover {
    background-color: #128C7E; /* Verde mais escuro no hover */
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(37, 211, 102, 0.4);
}

#theme-toggle {
    background: none;
    border: 1px solid var(--text-color);
    color: var(--text-color);
    padding: 5px 10px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 1.2rem;
}

/* =========================================
   HERO
   ========================================= */
.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(135deg, #0f172a 0%, var(--primary) 100%);
    color: white;
}
.hero h1 { font-size: 3rem; margin-bottom: 15px; }
.hero p { font-size: 1.2rem; opacity: 0.9; max-width: 600px; margin: 0 auto 30px; }
.btn-cta {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: transform 0.2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}
.btn-cta:hover { transform: scale(1.05); }

/* =========================================
   SEÇÃO GERAL
   ========================================= */
section { padding: 60px 5%; }
h2 { text-align: center; margin-bottom: 50px; font-size: 2.2rem; color: var(--primary); }

/* =========================================
   SERVIÇOS
   ========================================= */
.grid-servicos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.card-servico {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    border-top: 5px solid var(--secondary);
    text-align: center;
    transition: transform 0.3s;
}
body.light-mode .card-servico {
    border: none;
    border-top: 5px solid var(--secondary);
    box-shadow: 0 5px 20px var(--shadow-color);
}
.card-servico:hover { transform: translateY(-5px); }
.card-servico i { font-size: 3rem; color: var(--primary); margin-bottom: 20px; }
.card-servico h3 { margin-bottom: 15px; font-size: 1.3rem; }

/* =========================================
   CLIENTES
   ========================================= */
.client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 50px;
    align-items: flex-start;
}

.client-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 250px;
    text-align: center;
}

.img-wrapper img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    border-radius: 50%;
    background-color: var(--card-bg);
    padding: 20px;
    border: 4px solid var(--border-color);
    transition: all 0.3s ease;
}
/* No Dark Mode, fundo da bolinha deve ser claro para o logo aparecer */
.img-wrapper img { background-color: #f8fafc; border-color: #334155; }
body.light-mode .img-wrapper img { border-color: #e2e8f0; }

.img-wrapper img:hover {
    border-color: var(--secondary);
    transform: scale(1.05);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}

.client-info h3 {
    font-size: 1.2rem;
    margin-top: 20px;
    margin-bottom: 5px;
    color: var(--primary);
    font-weight: 600;
}
.client-info p { font-size: 0.95rem; color: #94a3b8; line-height: 1.5; }
body.light-mode .client-info p { color: #64748b; }

/* =========================================
   RODAPÉ
   ========================================= */
footer {
    text-align: center;
    padding: 50px 20px;
    background: #0f172a;
    color: #94a3b8;
    border-top: 5px solid var(--primary);
    margin-top: 50px;
}

/* =========================================
   MODAL / POPUP DE CONTATO
   ========================================= */
.modal-overlay {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: var(--card-bg);
    color: var(--text-color);
    margin: 5% auto;
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: slideDown 0.4s ease;
}

@keyframes slideDown {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close-modal {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}
.close-modal:hover { color: var(--primary); }

.modal-content h2 { margin-bottom: 10px; color: var(--primary); text-align: center; }
.modal-content p { text-align: center; margin-bottom: 20px; font-size: 0.9rem; opacity: 0.8; }

.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 0.9rem; }

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    outline: none;
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 5px rgba(0, 160, 153, 0.3);
}

.form-group-row { display: flex; gap: 15px; }
.form-group-row .form-group { flex: 1; }
@media (max-width: 600px) { .form-group-row { flex-direction: column; gap: 0; } }

.btn-submit {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}
.btn-submit:hover { background: var(--secondary); }