/* Sayfa iskeleti: header, footer, genel grid yardımcıları. */

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    height: var(--header-h);
    display: flex;
    align-items: center;
    background: rgba(10, 17, 20, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-soft);
}

:root[data-theme="light"] .site-header {
    background: rgba(244, 248, 247, 0.85);
}

.navbar {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding-inline: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-5);
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--fs-18);
    flex-shrink: 0;
}

.brand__mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: var(--accent-soft);
    color: var(--accent);
    font-size: var(--fs-14);
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--sp-6);
    flex-wrap: wrap;
}

.nav-links a {
    position: relative;
    font-size: var(--fs-14);
    font-weight: 500;
    color: var(--text-muted);
    padding-block: 4px;
    transition: color var(--transition);
}

.nav-links a:hover { color: var(--text); }

.nav-links a.is-active {
    color: var(--accent);
}

.nav-links a.is-active::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -10px;
    height: 2px;
    background: var(--accent);
    border-radius: var(--radius-pill);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.theme-toggle {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    color: var(--text-muted);
    transition: border-color var(--transition), color var(--transition);
}

.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav-toggle {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    color: var(--text);
}

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid var(--border-soft);
    background: var(--surface);
    margin-top: var(--sp-9);
}

.footer-cta {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--sp-8) 24px;
    display: grid;
    grid-template-columns: 1.1fr 0.8fr 1fr;
    gap: var(--sp-7);
    align-items: center;
}

.footer-cta__heading h2 {
    font-size: var(--fs-28);
    margin-bottom: var(--sp-2);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--sp-4);
}

.footer-contact__item {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-3);
}

.footer-contact__item svg {
    width: 18px; height: 18px;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact__item span { display: block; }
.footer-contact__item .label { font-size: var(--fs-12); color: var(--text-dim); }
.footer-contact__item .value { font-size: var(--fs-14); color: var(--text); }

.footer-bottom {
    border-top: 1px solid var(--border-soft);
}

.footer-bottom__inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--sp-5) 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    flex-wrap: wrap;
    font-size: var(--fs-14);
    color: var(--text-dim);
}

.footer-bottom__nav {
    display: flex;
    gap: var(--sp-5);
    flex-wrap: wrap;
}

.footer-bottom__nav a { color: var(--text-dim); transition: color var(--transition); }
.footer-bottom__nav a:hover { color: var(--accent); }

.back-to-top {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    color: var(--text-muted);
    transition: color var(--transition), border-color var(--transition);
}

.back-to-top:hover { color: var(--accent); border-color: var(--accent); }
.back-to-top svg { width: 16px; height: 16px; }

/* ---------- Kırılımlar ---------- */
@media (max-width: 1200px) {
    .footer-cta { grid-template-columns: 1fr 1fr; }
    .footer-cta__code { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border-soft);
        padding: var(--sp-3) var(--sp-5) var(--sp-5);
    }
    .nav-links.is-open { display: flex; }
    .nav-links a {
        padding: var(--sp-3) 0;
        border-bottom: 1px solid var(--border-soft);
    }
    .nav-links a.is-active::after { display: none; }

    .nav-toggle { display: grid; place-items: center; }
    .site-header { position: sticky; }

    .footer-cta { grid-template-columns: 1fr; }
}

/* Dar telefon ekranlarında marka metni + arama/tema/menü butonları navbar genişliğini aşıp
   menü butonunu görünür alanın dışına itiyordu — burada marka metnini gizleyip boşlukları
   sıkılaştırıyoruz. */
@media (max-width: 420px) {
    .navbar { padding-inline: var(--sp-4); gap: var(--sp-2); }
    .brand span:not(.brand__mark) { display: none; }
    .header-actions { gap: var(--sp-2); }
    .theme-toggle, .nav-toggle { width: 34px; height: 34px; }
}