/* ==================== LOGIN ERP - SG LOGISTICA ==================== */

/* Reset y variables */
:root {
    --primary: #5b5fff;
    --primary-dark: #4a4ed4;
    --primary-light: #8b8eff;
    --secondary: #1f2937;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-500: #6b7280;
    --gray-700: #374151;
    --gray-900: #111827;
    --error: #ef4444;
}

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

body {
    margin: 0;
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, #5b5fff 0%, #8b8eff 50%, #5b5fff 100%);
    background-size: 200% 200%;
    animation: gradientShift 10s ease infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

/* Animación del gradiente de fondo */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Contenedor principal del login */
.login-container {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 40px 32px;
    border-radius: 24px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-container:hover {
    transform: translateY(-4px);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.3);
}

/* Logo o icono */
.login-logo {
    margin-bottom: 24px;
}

.login-logo i {
    font-size: 56px;
    color: var(--primary);
    background: linear-gradient(135deg, #5b5fff, #8b8eff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Títulos */
.login-container h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.login-container h1 span {
    color: var(--primary);
}

.login-container .subtitle {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 32px;
}

/* Campos de formulario */
.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.input-group label i {
    margin-right: 6px;
    color: var(--primary);
}

.input-group input {
    width: 100%;
    padding: 12px 14px;
    font-size: 15px;
    border: 1.5px solid var(--gray-100);
    border-radius: 12px;
    background: var(--gray-50);
    transition: all 0.2s ease;
    font-family: inherit;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(91, 95, 255, 0.1);
}

.input-group input::placeholder {
    color: #9ca3af;
    font-size: 13px;
}

/* Opciones (recordar y recuperar) */
.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 13px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-500);
    cursor: pointer;
}

.remember-me input {
    width: 16px;
    height: 16px;
    margin: 0;
    cursor: pointer;
}

.forgot-password {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.forgot-password:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Botón de login */
.login-container button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #5b5fff, #4a4ed4);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.login-container button:hover {
    background: linear-gradient(135deg, #4a4ed4, #3b3fb8);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(91, 95, 255, 0.3);
}

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

/* Mensaje de error */
.error {
    color: var(--error);
    background: #fef2f2;
    padding: 10px;
    border-radius: 10px;
    margin-top: 16px;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.error i {
    font-size: 16px;
}

/* Loading spinner (para cuando se envía el formulario) */
.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
}

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

/* Footer del login */
.login-footer {
    margin-top: 32px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
    font-size: 12px;
    color: var(--gray-500);
}

/* Versión demo (opcional) */
.demo-credentials {
    background: var(--gray-50);
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 20px;
    font-size: 12px;
    color: var(--gray-500);
    text-align: left;
}

.demo-credentials strong {
    color: var(--gray-700);
}

.demo-credentials code {
    background: #e5e7eb;
    padding: 2px 6px;
    border-radius: 6px;
    font-family: monospace;
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 32px 24px;
        max-width: 100%;
    }
    
    .login-container h1 {
        font-size: 24px;
    }
    
    .login-options {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
}