/* ===== LOGIN SVINUM - CSS COMPLETO ===== */

:root {
    --primary-color: #000;
    --secondary-color: #666;
    --accent-color: #28a745;
    --danger-color: #dc3545;
    --success-color: #28a745;
    --light-gray: #f8f9fa;
    --border-light: #f0f0f0;
    --border-medium: #e0e0e0;
    --border-dark: #ddd;
    --shadow-light: 0 4px 20px rgba(0,0,0,0.05);
    --shadow-medium: 0 8px 30px rgba(0,0,0,0.1);
    --shadow-heavy: 0 10px 30px rgba(0,0,0,0.2);
    --transition-fast: 0.3s ease;
    --transition-medium: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.6s ease;
    --google-red: #db4437;
    --facebook-blue: #1877f2;
}

/* ===== LAYOUT PRINCIPAL ===== */
.login-main {
    background: linear-gradient(135deg, #fafafa 0%, #f0f0f0 100%);
    min-height: 100vh;
    padding: 40px 0;
    position: relative;
}

.login-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="wine" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23000" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23wine)"/></svg>');
    pointer-events: none;
}

.login-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    position: relative;
    z-index: 1;
}

/* ===== TARJETA DE LOGIN ===== */
.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px 40px 20px 40px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-medium);
    position: relative;
    overflow: hidden;
}

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

/* ===== HEADER DEL FORMULARIO ===== */
.login-header {
    text-align: center;
    margin-bottom: 35px;
}

.login-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
    position: relative;
}

.login-header p {
    color: var(--secondary-color);
    font-size: 1rem;
    margin: 0;
    font-weight: 400;
}

/* ===== ALERTAS ===== */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    animation: slideDown 0.4s ease;
}

.alert-error {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.2);
    color: var(--danger-color);
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid rgba(40, 167, 69, 0.2);
    color: var(--success-color);
}

.alert i {
    font-size: 1.1rem;
    flex-shrink: 0;
}

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

/* ===== FORMULARIO ===== */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
}

.form-control {
    padding: 16px 18px;
    border: 2px solid var(--border-medium);
    border-radius: 10px;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: white;
    font-family: inherit;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0,0,0,0.08);
    outline: none;
    transform: translateY(-1px);
}

.form-control::placeholder {
    color: #999;
}

.form-control.error {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.1);
}

/* ===== CAMPO DE CONTRASEÑA ===== */
.password-field {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.password-toggle:hover {
    color: var(--primary-color);
    background: var(--light-gray);
}

.password-toggle:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== OPCIONES DEL FORMULARIO ===== */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: -10px 0 10px 0;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-check-input {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-medium);
    border-radius: 4px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.form-check-input:checked {
    background: var(--primary-color);
    border-color: var(--primary-color);
    position: relative;
}

.form-check-input:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.form-check-label {
    font-size: 0.9rem;
    color: var(--secondary-color);
    cursor: pointer;
    font-weight: 500;
}

.forgot-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    padding: 4px 8px;
    border-radius: 4px;
}

.forgot-link:hover {
    color: var(--primary-color);
    background: var(--light-gray);
    text-decoration: none;
}

/* ===== BOTÓN DE LOGIN ===== */
.btn-login {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 18px 30px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.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 var(--transition-slow);
}

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

.btn-login:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

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

.btn-login i {
    transition: transform var(--transition-fast);
}

.btn-login:hover i {
    transform: translateX(4px);
}

/* ===== DIVIDER ===== */
.or-divider {
    text-align: center;
    position: relative;
    margin: 30px 0;
}

.or-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-medium);
}

.or-divider span {
    background: white;
    padding: 0 20px;
    color: var(--secondary-color);
    font-weight: 500;
    position: relative;
    z-index: 1;
    font-size: 0.9rem;
}

/* ===== LOGIN SOCIAL ===== */
.social-login {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.social-btn {
    padding: 15px 20px;
    border: 2px solid var(--border-medium);
    border-radius: 10px;
    background: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 500;
    font-size: 0.95rem;
}

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

.google-btn {
    color: var(--google-red);
    border-color: rgba(219, 68, 55, 0.2);
}

.google-btn:hover {
    background: rgba(219, 68, 55, 0.05);
    border-color: var(--google-red);
}

.facebook-btn {
    color: var(--facebook-blue);
    border-color: rgba(24, 119, 242, 0.2);
}

.facebook-btn:hover {
    background: rgba(24, 119, 242, 0.05);
    border-color: var(--facebook-blue);
}

.social-btn i {
    font-size: 1.2rem;
}

/* ===== FOOTER DEL FORMULARIO ===== */
.login-footer {
    text-align: center;
    border-top: 1px solid var(--border-light);
    padding-top: 25px;
}

.login-footer p {
    margin: 0 0 15px 0;
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
    padding: 2px 4px;
    border-radius: 4px;
}

.login-footer a:hover {
    color: var(--primary-color);
    background: var(--light-gray);
    text-decoration: none;
}

.guest-link {
    margin-top: 20px !important;
    padding-top: 15px;
    border-top: 1px solid var(--border-light);
}

.guest-link a {
    color: var(--secondary-color);
    font-weight: 500;
    text-decoration: underline;
}

.guest-link a:hover {
    color: var(--primary-color);
    background: none;
}

/* ===== BENEFICIOS ===== */
.login-benefits {
    background: white;
    border-radius: 16px;
    padding: 40px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-light);
    height: fit-content;
    position: sticky;
    top: 20px;
}

.login-benefits h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

.login-benefits h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 20px;
    border-radius: 12px;
    transition: all var(--transition-fast);
    cursor: default;
}

.benefit-item:hover {
    background: var(--light-gray);
    transform: translateX(5px);
}

.benefit-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.benefit-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0 0 5px 0;
}

.benefit-item p {
    color: var(--secondary-color);
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

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

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

.login-card {
    animation: fadeInUp 0.6s ease forwards;
}

.login-benefits {
    animation: fadeInRight 0.6s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.benefit-item {
    animation: fadeInUp 0.4s ease forwards;
    opacity: 0;
}

.benefit-item:nth-child(1) { animation-delay: 0.4s; }
.benefit-item:nth-child(2) { animation-delay: 0.5s; }
.benefit-item:nth-child(3) { animation-delay: 0.6s; }
.benefit-item:nth-child(4) { animation-delay: 0.7s; }

/* ===== ESTADOS DE CARGA ===== */
.btn-login.loading {
    pointer-events: none;
    position: relative;
}

.btn-login.loading span {
    opacity: 0;
}

.btn-login.loading i {
    opacity: 0;
}

.btn-login.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr;
        gap: 40px;
        max-width: 600px;
    }
    
    .login-benefits {
        position: static;
    }
}

@media (max-width: 768px) {
    .login-main {
        padding: 20px 0;
    }
    
    .login-container {
        padding: 0 20px;
        gap: 30px;
    }
    
    .login-card {
        padding: 30px 25px;
        border-radius: 12px;
    }
    
    .login-header h1 {
        font-size: 1.7rem;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .social-login {
        grid-template-columns: 1fr;
    }
    
    .login-benefits {
        padding: 30px 25px;
    }
    
    .benefit-item {
        padding: 15px;
    }
}

@media (max-width: 576px) {
    .login-card {
        padding: 25px 20px;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .form-control {
        padding: 14px 16px;
    }
    
    .btn-login {
        padding: 16px 25px;
    }
    
    .login-benefits {
        padding: 25px 20px;
    }
    
    .login-benefits h3 {
        font-size: 1.3rem;
    }
    
    .benefit-item {
        gap: 12px;
        padding: 12px;
    }
    
    .benefit-item i {
        font-size: 1.3rem;
    }
}

/* ===== MEJORAS DE ACCESIBILIDAD ===== */
.btn-login:focus,
.social-btn:focus,
.forgot-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.form-control:focus {
    outline: none;
}

/* errores del login */
.alert-error  {background:#ffe2e2;color:#d11a2a;border:1px solid #f5c2c7;}
.alert-success{background:#e6f4ea;color:#198754;border:1px solid #b8e0c2;}
.alert        {padding:12px 16px;border-radius:8px;display:flex;align-items:center;gap:.5rem;margin-bottom:1rem;}