/* Login Styles - Sistema de Autenticación Optimizado */

:root {
    --dark: #343a40;
    --warning: #ffc107;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --shadow: rgba(0, 0, 0, 0.15);
    --success: #1b1c1c;
    --danger: #dc3545;
    --info: #17a2b8;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--white);
    min-height: 100vh;
    overflow-x: hidden;
}


/* Background animado */

.login-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.05;
}


/* Contenedor principal */

.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}


/* Card de login */

.login-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 10px 40px var(--shadow);
    overflow: hidden;
    max-width: 450px;
    width: 100%;
    animation: slideInUp 0.5s ease;
}

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


/* Header con logo */

.login-header {
    background: linear-gradient(135deg, var(--dark) 0%, #212529 100%);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 193, 7, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.logo-container {
    position: relative;
    z-index: 1;
    margin-bottom: 20px;
}

.logo-img {
    max-width: 120px;
    height: auto;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
    animation: pulse 2s ease infinite;
}

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

.login-title {
    color: var(--white);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.login-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    position: relative;
    z-index: 1;
}


/* Body del formulario */

.login-body {
    padding: 40px 30px;
}


/* Grupos de formulario */

.form-group {
    margin-bottom: 25px;
}

.form-label {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
}

.form-label i {
    margin-right: 8px;
    color: var(--warning);
}


/* Input personalizado */

.input-group-custom {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #adb5bd;
    z-index: 10;
}

.form-control {
    border: 2px solid #dee2e6;
    border-radius: 10px;
    padding: 12px 15px 12px 45px;
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--warning);
    box-shadow: 0 0 0 0.2rem rgba(255, 193, 7, 0.25);
}

.form-control.is-valid {
    border-color: var(--success);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.invalid-feedback {
    display: none;
    color: var(--danger);
    font-size: 13px;
    margin-top: 5px;
}

.form-control.is-invalid~.invalid-feedback {
    display: block;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #adb5bd;
    z-index: 10;
    transition: color 0.3s;
}

.password-toggle:hover {
    color: var(--warning);
}


/* Botones */

.btn-login {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-dark {
    background: var(--dark);
    border-color: var(--dark);
}

.btn-dark:hover:not(:disabled) {
    background: #212529;
    border-color: #212529;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 58, 64, 0.4);
}

.btn-dark:disabled {
    opacity: 0.85;
    cursor: not-allowed;
}

.btn-warning {
    background: var(--warning);
    border-color: var(--warning);
    color: var(--dark);
}

.btn-warning:hover {
    background: #e0a800;
    border-color: #e0a800;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.4);
}


/* Alertas personalizadas */

.alert-custom {
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 25px;
    border: none;
    animation: slideInDown 0.3s ease;
    display: flex;
    align-items: center;
    font-size: 14px;
    line-height: 1.5;
}

.alert-custom i {
    font-size: 18px;
    flex-shrink: 0;
}

.alert-custom span {
    flex: 1;
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger);
}

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

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid var(--info);
}


/* Security badge */

.security-badge {
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #dee2e6;
}

.security-badge i {
    color: var(--success);
    margin-right: 5px;
}

.security-badge span {
    color: #6c757d;
    font-size: 13px;
}


/* Loading overlay */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.loading-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--warning);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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


/* Modal personalizado */

.modal-content {
    border-radius: 15px;
    border: none;
}

.modal-header {
    background: linear-gradient(135deg, var(--dark), #212529);
    color: white;
    border: none;
    padding: 20px;
    border-radius: 15px 15px 0 0;
}

.modal-body {
    padding: 30px;
    font-size: 15px;
    color: #495057;
}

.modal-footer {
    border: none;
    padding: 20px;
}


/* Animación shake para errores */

@keyframes shakeX {
    0%,
    100% {
        transform: translateX(0);
    }
    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-10px);
    }
    20%,
    40%,
    60%,
    80% {
        transform: translateX(10px);
    }
}

.animate__shakeX {
    animation: shakeX 0.82s cubic-bezier(.36, .07, .19, .97) both;
}

.animate__fadeOut {
    animation: fadeOut 0.5s ease;
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}


/* Responsive */

@media (max-width: 576px) {
    .login-card {
        margin: 10px;
    }
    .login-header {
        padding: 30px 20px;
    }
    .login-body {
        padding: 30px 20px;
    }
    .login-title {
        font-size: 24px;
    }
    .logo-img {
        max-width: 100px;
    }
    .alert-custom {
        font-size: 13px;
        padding: 12px;
    }
}

@media (max-width: 380px) {
    .form-control {
        font-size: 14px;
        padding: 10px 10px 10px 40px;
    }
    .btn-login {
        padding: 12px;
        font-size: 15px;
    }
    .alert-custom i {
        font-size: 16px;
    }
}


/* Utilidades */

.d-none {
    display: none !important;
}

.mr-2 {
    margin-right: 0.5rem !important;
}