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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* Container Principal */
.container {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.4);
    max-width: 450px;
    width: 100%;
    padding: 45px;
    animation: slideUp 0.6s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Logo */
.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    color: #667eea;
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 700;
}

.logo p {
    color: #666;
    font-size: 0.95em;
}

.wifi-icon {
    font-size: 3.5em;
    color: #667eea;
    margin-bottom: 15px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.7;
        transform: scale(1.05);
    }
}

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

label {
    display: block;
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 0.92em;
    letter-spacing: 0.3px;
}

input[type="text"],
input[type="date"],
input[type="email"],
input[type="password"],
select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1em;
    transition: all 0.3s ease;
    outline: none;
    background: #f7fafc;
    color: #2d3748;
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus {
    border-color: #667eea;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.12);
    transform: translateY(-1px);
}

input::placeholder {
    color: #aaa;
    font-size: 0.95em;
}

/* Botões */
.btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: #6c757d;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9em;
}

/* Alertas */
.alert {
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9em;
    display: none;
}

.alert-error {
    background: #fee;
    color: #c33;
    border-left: 4px solid #c33;
}

.alert-success {
    background: #efe;
    color: #3c3;
    border-left: 4px solid #3c3;
}

.alert-info {
    background: #eef;
    color: #33c;
    border-left: 4px solid #33c;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border-left: 4px solid #ffc107;
}

/* Loading */
.loading {
    display: none;
    text-align: center;
    margin: 20px 0;
}

.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading p {
    margin-top: 10px;
    color: #667eea;
}

/* Info Box */
.info-box {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 12px;
    padding: 18px 20px;
    margin-top: 24px;
    font-size: 0.88em;
    color: #4a5568;
    border-left: 4px solid #667eea;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.info-box p {
    margin-bottom: 8px;
}

.info-box strong {
    color: #333;
}

/* Badges */
.badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 600;
    display: inline-block;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* Responsive */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .container {
        padding: 30px 20px;
        border-radius: 15px;
    }
    
    .logo h1 {
        font-size: 2em;
    }
    
    .wifi-icon {
        font-size: 2.8em;
    }
    
    .btn {
        padding: 14px;
        font-size: 1em;
    }
    
    input[type="text"],
    input[type="date"] {
        padding: 10px 12px;
        font-size: 0.95em;
    }
}