/* Üst menü ve footer düzeni */

.site-topbar {
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header {
    position: relative;
    z-index: 2;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-small);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    gap: 1rem;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-text);
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

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

.site-logo__icon {
    font-size: 1.4rem;
}

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

.main-nav__list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    color: var(--color-text);
    border-radius: var(--border-radius-small);
    border: none;
    background: transparent;
    font: inherit;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.main-nav__link:hover,
.main-nav__link[aria-expanded="true"] {
    background: var(--color-surface-secondary);
    color: var(--color-primary);
}

.main-nav__item--has-submenu {
    position: relative;
}

.main-nav__submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    margin: 0;
    padding: 0.4rem 0.5rem 0.5rem;
    list-style: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-medium);
    z-index: 50;
}

/* Masaüstü: hover ile açılır; padding üst boşluğu fare yolunu koparmaz */
@media (min-width: 901px) {
    .main-nav__item--has-submenu:hover .main-nav__submenu,
    .main-nav__item--has-submenu:focus-within .main-nav__submenu,
    .main-nav__submenu.is-open {
        display: block;
    }
}

.main-nav__submenu a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--color-text);
    border-radius: var(--border-radius-small);
}

.main-nav__submenu a:hover {
    background: var(--color-surface-secondary);
    color: var(--color-primary);
}

.main-nav__chevron {
    font-size: 0.75rem;
}

/* Tema değiştirme butonu */
.theme-toggle {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: linear-gradient(145deg, #1a2430, #2a3542);
    color: #ffd54f;
    cursor: pointer;
    box-shadow: var(--btn-shadow);
    overflow: hidden;
    transition:
        border-color var(--transition-fast),
        background 0.45s ease,
        box-shadow var(--transition-fast),
        transform var(--transition-fast),
        color 0.45s ease;
}

[data-theme="light"] .theme-toggle {
    background: linear-gradient(145deg, #fff8e1, #ffe082);
    color: #5c4a00;
    border-color: color-mix(in srgb, #f9a825 35%, var(--color-border));
}

.theme-toggle:hover {
    border-color: color-mix(in srgb, var(--color-primary) 50%, var(--color-border));
    transform: translateY(-1px) scale(1.04);
    box-shadow: var(--btn-shadow-hover);
}

.theme-toggle:active {
    transform: translateY(0) scale(0.98);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.theme-toggle__scene {
    position: relative;
    width: 22px;
    height: 22px;
}

.theme-toggle__orb {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition:
        opacity 0.45s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.55s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.theme-toggle__svg {
    width: 22px;
    height: 22px;
    display: block;
}

[data-theme="dark"] .theme-toggle__orb--sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="dark"] .theme-toggle__orb--moon {
    opacity: 0;
    transform: rotate(120deg) scale(0.35);
}

[data-theme="light"] .theme-toggle__orb--sun {
    opacity: 0;
    transform: rotate(-120deg) scale(0.35);
}

[data-theme="light"] .theme-toggle__orb--moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.theme-toggle.is-animating .theme-toggle__orb--sun,
.theme-toggle.is-animating .theme-toggle__orb--moon {
    transition-duration: 0.55s;
}

.theme-toggle.is-animating .theme-toggle__orb--sun {
    animation: theme-sun-spin 0.55s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.theme-toggle.is-animating .theme-toggle__orb--moon {
    animation: theme-moon-rise 0.55s cubic-bezier(0.34, 1.4, 0.64, 1);
}

@keyframes theme-sun-spin {
    0% { transform: rotate(0deg) scale(1); }
    45% { transform: rotate(180deg) scale(0.5); opacity: 0.4; }
    100% { transform: rotate(360deg) scale(1); }
}

@keyframes theme-moon-rise {
    0% { transform: rotate(-90deg) scale(0.3); opacity: 0; }
    55% { transform: rotate(10deg) scale(1.15); opacity: 1; }
    100% { transform: rotate(0deg) scale(1); }
}

/* Mobil menü butonu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--btn-radius);
    background: var(--color-surface-secondary);
    cursor: pointer;
    box-shadow: var(--btn-shadow);
    transition:
        border-color var(--transition-fast),
        background var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
}

.mobile-menu-toggle:hover {
    border-color: color-mix(in srgb, var(--color-primary) 50%, var(--color-border));
    background: color-mix(in srgb, var(--color-primary) 8%, var(--color-surface-secondary));
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-hover);
}

.mobile-menu-toggle:active {
    transform: translateY(0);
}

.mobile-menu-toggle:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.mobile-menu-toggle__bar {
    display: block;
    width: 22px;
    height: 2px;
    margin: 0 auto;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 90;
}

.mobile-menu-overlay[hidden] {
    display: none;
}

/* Footer */
.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 2.5rem 0 1.5rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section__title {
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.footer-section__text {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.4rem;
}

.footer-links a {
    color: var(--color-text-muted);
}

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

.footer-copyright {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
    margin: 0;
}