/* CSS Variables */
:root {
    --primary-color: #1a365d;
    --primary-dark: #0f2027;
    --secondary-color: #2d3748;
    --accent-color: #38a169;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --danger-color: #e53e3e;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-primary: #f7fafc;
    --bg-light: #edf2f7;
    --border-color: #e2e8f0;
    --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow-medium);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.header-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.profile-container {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    overflow: hidden;
}

/* Profile Header */
.profile-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.profile-title h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.profile-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Profile Overview */
.profile-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    background: var(--bg-light);
}

.overview-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.overview-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.overview-card.account-status {
    border-left: 6px solid var(--success-color);
}

.overview-card.last-update {
    border-left: 6px solid var(--warning-color);
}

.overview-card.security-level {
    border-left: 6px solid var(--primary-color);
}

.overview-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.overview-icon i {
    font-size: 1.5rem;
    color: white;
}

.overview-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.overview-amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.overview-trend {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.overview-trend.positive {
    color: var(--success-color);
}

.overview-trend.neutral {
    color: var(--text-light);
}

.overview-trend i {
    font-size: 0.8rem;
}

/* Profile Forms */
.profile-section {
    padding: 2rem;
}

.section-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.profile-forms {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.profile-info, .change-password {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
}

.profile-info h3, .change-password h3 {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

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

.btn-warning:hover {
    background: #dd6b20;
    transform: translateY(-2px);
}

/* Notifications */
.notifications {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1000;
}

.notification {
    background: white;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-medium);
    border-left: 4px solid var(--primary-color);
    min-width: 300px;
}

.notification.success {
    border-left-color: var(--success-color);
}

.notification.error {
    border-left-color: var(--danger-color);
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-medium);
}

.loading-spinner i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .profile-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .profile-forms {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .profile-overview {
        grid-template-columns: 1fr;
    }
    
    .main-content {
        padding: 1rem;
    }
}