/**
 * Reusable Components
 * izzetince.com.tr
 * ==================
 */

/* === Base Reset === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--gradient-bg), var(--bg-dark);
    color: var(--text-primary);
    line-height: var(--line-height-relaxed);
    min-height: 100vh;
}

/* === Container === */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* === Unified Navbar === */
.site-navbar {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: var(--navbar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    height: var(--navbar-height);
}

.site-navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
}

.nav-brand-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-item {
    position: relative;
}

.nav-item > a,
.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-item > a:hover,
.nav-link:hover,
.nav-item > a:focus,
.nav-link:focus {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-item > a.active,
.nav-link.active {
    color: var(--color-primary-light);
}

/* Focus visible for accessibility */
.nav-item > a:focus-visible,
.nav-link:focus-visible {
    outline: 2px solid var(--outline-focus);
    outline-offset: 2px;
}

/* Nav Badge */
.nav-badge {
    font-size: 10px;
    padding: 2px 6px;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
    color: white;
    font-weight: var(--font-weight-semibold);
    margin-left: var(--spacing-xs);
}

/* === Dropdown Menu === */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 220px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-dropdown a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.nav-dropdown-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-sm);
}

.nav-dropdown-content {
    flex: 1;
}

.nav-dropdown-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.nav-dropdown-desc {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* === Mega Menu === */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 700px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.mega-menu-section h4 {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-sm);
}

.mega-menu-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mega-menu-card:hover {
    background: rgba(255, 255, 255, 0.05);
}

.mega-menu-card-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-base);
    flex-shrink: 0;
}

.mega-menu-card-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.mega-menu-card-badge {
    font-size: 10px;
    padding: 2px 6px;
    background: rgba(17, 153, 142, 0.2);
    color: var(--color-primary-light);
    border-radius: var(--radius-full);
    margin-left: var(--spacing-xs);
}

.mega-menu-card-desc {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.mega-menu-footer {
    grid-column: 1 / -1;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.mega-menu-footer a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-primary-light);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.mega-menu-footer a:hover {
    text-decoration: underline;
}

/* === Hamburger Menu === */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* === Breadcrumb === */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-primary-light);
}

.breadcrumb-separator {
    color: var(--text-muted);
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}

/* === Search Box === */
.search-container {
    position: relative;
}

.search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 26, 0.9);
    backdrop-filter: blur(8px);
    z-index: var(--z-modal);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.search-modal.active {
    opacity: 1;
    visibility: visible;
}

.search-box {
    width: 100%;
    max-width: 600px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: translateY(-20px);
    transition: transform var(--transition-normal);
}

.search-modal.active .search-box {
    transform: translateY(0);
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.search-input-wrapper i {
    color: var(--text-muted);
    font-size: var(--font-size-xl);
    margin-right: var(--spacing-md);
}

.search-input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    outline: none;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--spacing-sm);
}

.search-close:hover {
    color: var(--text-primary);
}

.search-results {
    max-height: 400px;
    overflow-y: auto;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    text-decoration: none;
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.search-result-item:hover,
.search-result-item.active {
    background: rgba(255, 255, 255, 0.05);
}

.search-result-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.search-result-title {
    font-weight: var(--font-weight-medium);
}

.search-result-path {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.search-empty {
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-muted);
}

.search-shortcuts {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.search-shortcuts kbd {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: inherit;
}

/* === Theme Toggle === */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.theme-toggle .fa-sun { display: none; }
.theme-toggle .fa-moon { display: block; }

[data-theme="light"] .theme-toggle .fa-sun { display: block; }
[data-theme="light"] .theme-toggle .fa-moon { display: none; }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn:focus-visible {
    outline: 2px solid var(--outline-focus);
    outline-offset: 2px;
}

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

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

/* === Cards === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* === Footer === */
.site-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-3xl);
    text-align: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.site-footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

.site-footer a:hover {
    color: var(--color-primary-light);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .mega-menu {
        width: 90vw;
        max-width: 600px;
    }

    .mega-menu-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --navbar-height: 60px;
        --container-padding: 16px;
    }

    .nav-menu {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-dark);
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-lg);
        gap: var(--spacing-xs);
        transform: translateX(100%);
        transition: transform var(--transition-normal);
        overflow-y: auto;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-item > a,
    .nav-link {
        padding: var(--spacing-md);
        font-size: var(--font-size-base);
    }

    .nav-dropdown,
    .mega-menu {
        position: static;
        transform: none;
        width: 100%;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 0 0 0 var(--spacing-lg);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-normal);
    }

    .nav-item.open .nav-dropdown,
    .nav-item.open .mega-menu {
        max-height: 500px;
    }

    .mega-menu-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .mega-menu-section h4 {
        margin-top: var(--spacing-md);
    }

    .search-box {
        margin: 0 var(--spacing-md);
    }
}

/* === Skip Link (Accessibility) === */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--spacing-md);
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    z-index: var(--z-tooltip);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--spacing-md);
}

/* === Screen Reader Only === */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}