/* Login Moderno - Adega J&D */

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    
    --bg-primary: #f8fafc;
    --bg-card: #ffffff;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-white: #ffffff;
    
    --border-color: #e2e8f0;
    --border-focus: #2563eb;
    
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    --transition: 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.login-container {
    width: 100%;
    max-width: 400px;
    position: relative;
}

.login-box {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    position: relative;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #1e40af);
}

.login-header {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: var(--text-white);
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
    50% { transform: translate(-50%, -50%) rotate(180deg); }
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
    letter-spacing: -0.025em;
}

.login-header p {
    font-size: 1rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.login-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    background: var(--bg-card);
    transform: translateY(-1px);
}

.form-group input::placeholder {
    color: var(--text-secondary);
    font-weight: 400;
}

.btn-login {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-login:hover::before {
    left: 100%;
}

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

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

.login-footer {
    padding: 1.5rem 2rem;
    background: var(--bg-primary);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition);
}

.login-footer a:hover {
    color: var(--primary-hover);
}

/* Alertas */
.alert {
    padding: 1rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    border: 1px solid;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

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

.alert-error {
    background: #fef2f2;
    border-color: #fecaca;
    color: #dc2626;
}

.alert-success {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: #16a34a;
}

.alert i {
    font-size: 1.25rem;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsivo */
@media (max-width: 480px) {
    .login-container {
        padding: 0.5rem;
    }
    
    .login-header {
        padding: 1.5rem;
    }
    
    .login-header h1 {
        font-size: 1.75rem;
    }
    
    .login-form {
        padding: 1.5rem;
    }
    
    .login-footer {
        padding: 1rem 1.5rem;
    }
}

/* Animações extras */
.login-box {
    animation: fadeInUp 0.6s ease-out;
}

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

/* Efeito de foco nos inputs */
.form-group {
    position: relative;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    transform: translateY(-1.5rem) scale(0.875);
    color: var(--primary-color);
}

/* Decoração adicional */
.login-box::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), #1e40af);
    border-radius: 2px;
    opacity: 0.3;
}

/* Hover effects */
.login-box:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0f172a;
        --bg-card: #1e293b;
        --text-primary: #f8fafc;
        --text-secondary: #cbd5e1;
        --border-color: #334155;
    }
    
    .login-box {
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .form-group input {
        background: #334155;
        color: var(--text-primary);
    }
    
    .form-group input:focus {
        background: #475569;
    }
}