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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --dark: #1e293b;
    --text: #334155;
    --text-light: #64748b;
    --border: #e2e8f0;
    --bg-light: #f8fafc;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    display: flex;
    width: 100%;
    max-width: 1100px;
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    min-height: 600px;
}

/* ========== SECCIÓN DE INFORMACIÓN ========== */
.info-section {
    flex: 1;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.info-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: pulse 15s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.3); opacity: 0.8; }
}

.info-content {
    position: relative;
    z-index: 1;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}

.logo-section i {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.logo-section h1 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.info-section h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}

.info-section > p {
    font-size: 16px;
    opacity: 0.95;
    margin-bottom: 40px;
    line-height: 1.7;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-item i {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.feature-item h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-item p {
    font-size: 14px;
    opacity: 0.9;
}

/* ========== SECCIÓN DEL FORMULARIO ========== */
.form-section {
    flex: 1;
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.form-content {
    max-width: 400px;
    margin: 0 auto;
    width: 100%;
}

.form-header {
    margin-bottom: 40px;
}

.form-header h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.form-header p {
    font-size: 16px;
    color: var(--text-light);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.form-group label {
    font-weight: 600;
    font-size: 14px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group label i {
    color: var(--primary);
    font-size: 14px;
}

.form-group input {
    padding: 14px 16px;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.2s ease;
    background: var(--bg-light);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.password-input {
    position: relative;
}

.password-input input {
    padding-right: 50px;
    width: 100%;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.toggle-password:hover {
    background: var(--border);
    color: var(--dark);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: -8px;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
    user-select: none;
}

.remember-me input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

.forgot-password {
    font-size: 14px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

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

.btn-submit {
    padding: 15px 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    margin-top: 8px;
}

.btn-submit:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-submit:active:not(:disabled) {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.error-message,
.success-message {
    padding: 14px 16px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

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

.error-message {
    background: #fef2f2;
    color: var(--danger);
    border: 1px solid #fecaca;
}

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

.success-message {
    background: #f0fdf4;
    color: var(--success);
    border: 1px solid #86efac;
}

.success-message i {
    font-size: 16px;
}

.form-footer {
    margin-top: 32px;
    text-align: center;
}

.form-footer p {
    font-size: 15px;
    color: var(--text);
}

.form-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.2s ease;
}

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

.password-hint {
    font-size: 12px;
    color: var(--text-light);
    margin-top: -4px;
    display: block;
    transition: color 0.2s ease;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 968px) {
    .login-container {
        flex-direction: column;
        max-width: 500px;
    }

    .info-section {
        padding: 40px 30px;
        min-height: auto;
    }

    .info-section h2 {
        font-size: 24px;
    }

    .features {
        display: none;
    }

    .form-section {
        padding: 40px 30px;
    }

    .form-header h2 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 0;
    }

    .login-container {
        border-radius: 0;
        min-height: 100vh;
    }

    .info-section,
    .form-section {
        padding: 30px 20px;
    }

    .logo-section h1 {
        font-size: 26px;
    }

    .form-header h2 {
        font-size: 24px;
    }
}