/*
 * Urban Balance - Component Styles
 * Reusable UI Components
 */

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-300);
    padding: var(--space-md) var(--space-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo:hover {
    color: var(--color-primary-hover);
}

.header-nav {
    display: flex;
    gap: var(--space-xl);
    align-items: center;
}

.header-nav a {
    color: var(--color-gray-600);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-base);
    padding: var(--space-sm) 0;
    border-bottom: 2px solid transparent;
}

.header-nav a:hover,
.header-nav a.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.user-menu {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-semibold);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--space-2xl) var(--space-lg);
    margin-top: var(--space-3xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-section h4 {
    color: var(--color-white);
    font-size: var(--font-size-base);
    margin-bottom: var(--space-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: var(--color-gray-400);
    transition: color var(--transition-base);
}

.footer-section a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-700);
    padding-top: var(--space-md);
    text-align: center;
    font-size: var(--font-size-sm);
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--color-white);
    padding: var(--space-3xl) var(--space-lg);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--color-white);
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.hero p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-xl);
    opacity: 0.95;
}

/* ========================================
   COUNTDOWN TIMER
   ======================================== */

.countdown {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    align-items: center;
}

.countdown-item {
    text-align: center;
}

.countdown-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    display: block;
    line-height: 1;
}

.countdown-label {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    text-transform: uppercase;
    margin-top: var(--space-xs);
}

/* ========================================
   AUCTION CARDS
   ======================================== */

.auction-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

.auction-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.auction-card-image {
    width: 100%;
    height: 200px;
    background: var(--color-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.auction-card-content {
    padding: var(--space-lg);
}

.auction-card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-sm);
}

.auction-card-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.auction-card-price {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: var(--space-md);
}

/* ========================================
   LICENSE CARD
   ======================================== */

.license-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.license-number {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-md);
}

.license-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

/* ========================================
   STATS / KPI CARDS
   ======================================== */

.stat-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
}

.stat-value {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-change {
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

.stat-change.positive {
    color: var(--color-success);
}

.stat-change.negative {
    color: var(--color-error);
}

/* ========================================
   TABS
   ======================================== */

.tabs {
    border-bottom: 1px solid var(--color-gray-300);
    margin-bottom: var(--space-lg);
}

.tabs-list {
    display: flex;
    gap: var(--space-md);
    list-style: none;
}

.tabs-list li {
    margin: 0;
}

.tabs-list a {
    display: block;
    padding: var(--space-md) var(--space-lg);
    color: var(--color-gray-600);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all var(--transition-base);
}

.tabs-list a:hover,
.tabs-list a.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ========================================
   MODAL / DIALOG
   ======================================== */

.modal-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: 1000;
    padding: var(--space-lg);
}

.modal {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    color: var(--color-gray-600);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--color-gray-200);
    display: flex;
    gap: var(--space-md);
    justify-content: flex-end;
}

/* ========================================
   EMPTY STATE
   ======================================== */

.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-sm);
}

.empty-state-description {
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
}

/* ========================================
   PROGRESS BAR
   ======================================== */

.progress {
    width: 100%;
    height: 8px;
    background: var(--color-gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--color-primary);
    transition: width var(--transition-slow);
}

.progress-bar.success {
    background: var(--color-success);
}

.progress-bar.warning {
    background: var(--color-warning);
}

.progress-bar.error {
    background: var(--color-error);
}

/* ========================================
   LOADING SPINNER
   ======================================== */

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* ========================================
   RESPONSIVE NAVIGATION
   ======================================== */

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: var(--space-sm);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .header-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        gap: 0;
        border-top: 1px solid var(--color-gray-300);
        box-shadow: var(--shadow-lg);
    }

    .header-nav.active {
        display: flex;
    }

    .header-nav a {
        padding: var(--space-md) var(--space-lg);
        border-bottom: 1px solid var(--color-gray-200);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .hero h1 {
        font-size: var(--font-size-3xl);
    }
}