/* GravityTeknoloji - Tema Toggle */
.theme-toggle {
    position: relative;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    flex-shrink: 0;
    z-index: 10;
    transition: all var(--transition-base);
    overflow: hidden;
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.theme-toggle__icon {
    position: absolute;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.theme-toggle__icon svg {
    width: 100%;
    height: 100%;
}

/* Aydınlık modda: güneş görünür, ay gizli */
[data-theme="light"] .theme-toggle__icon--sun,
:root:not([data-theme="dark"]) .theme-toggle__icon--sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle__icon--moon,
:root:not([data-theme="dark"]) .theme-toggle__icon--moon {
    opacity: 0;
    transform: rotate(90deg) scale(0);
}

/* Karanlık modda: ay görünür, güneş gizli */
[data-theme="dark"] .theme-toggle__icon--sun {
    opacity: 0;
    transform: rotate(-90deg) scale(0);
}

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

/* Auto mod - sistem tercihine göre */
@media (prefers-color-scheme: light) {
    [data-theme="auto"] .theme-toggle__icon--sun {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
    [data-theme="auto"] .theme-toggle__icon--moon {
        opacity: 0;
        transform: rotate(90deg) scale(0);
    }
}

@media (prefers-color-scheme: dark) {
    [data-theme="auto"] .theme-toggle__icon--sun {
        opacity: 0;
        transform: rotate(-90deg) scale(0);
    }
    [data-theme="auto"] .theme-toggle__icon--moon {
        opacity: 1;
        transform: rotate(0deg) scale(1);
    }
}

/* Tema geçiş animasyonu */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
    transition: background 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease !important;
}