/* =============================================================
   Sun Dizayn Aluminyum – Responsive CSS
   Breakpoints: 1200 | 1024 | 768 | 480
   ============================================================= */



/* ─── TABLET GENİŞ: ≤ 1200px ─── */
@media (max-width: 1200px) {
    .mega-menu__grid { grid-template-columns: repeat(5, 1fr); }
    .services-grid { grid-template-columns: repeat(3, 1fr); }
    .services-grid--4col { grid-template-columns: repeat(3, 1fr); }
}

/* ─── TABLET: ≤ 1024px ─── */
@media (max-width: 1024px) {
    .mega-menu__grid { grid-template-columns: repeat(4, 1fr); }
    .nav-link { padding: var(--space-2) var(--space-3); font-size: 12px; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid--4col { grid-template-columns: repeat(2, 1fr); }
    .why-us-grid { grid-template-columns: repeat(2, 1fr); }
    .about-intro { grid-template-columns: 1fr; gap: var(--space-10); }
    .about-intro__img { max-width: 600px; }
    .service-content { grid-template-columns: 1fr; gap: var(--space-10); }
    .service-sidebar { position: static; }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .process-steps::before { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
    .contact-layout { grid-template-columns: 1fr; gap: var(--space-10); }
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ─── MOBİL MENÜ: ≤ 768px ─── */
@media (max-width: 768px) {

    /* Header */
    :root { --header-height: 68px; }

    .site-header {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background-color: rgba(255, 255, 255, 0.98) !important;
    }

    /* Hamburger butonu görünür yap */
    .mobile-menu-toggle {
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 5px;
        width: 44px;
        height: 44px;
        padding: var(--space-2);
        border-radius: var(--radius-md);
        background: transparent;
        border: none;
        cursor: pointer;
        flex-shrink: 0;
        z-index: 1001;
        transition: background-color var(--transition-fast);
        margin-left: auto;
    }
    .mobile-menu-toggle:hover {
        background-color: var(--color-light-gray);
    }
    .hamburger {
        display: block;
        width: 22px;
        height: 2px;
        background-color: var(--color-text);
        border-radius: var(--radius-full);
        transition: transform var(--transition-normal), opacity var(--transition-normal);
        transform-origin: center;
    }
    /* Hamburger → X animasyonu */
    .mobile-menu-toggle.is-open .hamburger:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .mobile-menu-toggle.is-open .hamburger:nth-child(2) {
        opacity: 0;
        transform: scaleX(0);
    }
    .mobile-menu-toggle.is-open .hamburger:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* Header CTA küçük */
    .header-cta .btn {
        font-size: var(--font-size-xs);
        padding: var(--space-2) var(--space-3);
    }

    /* Header inner düzeni: logo | boşluk | hamburger */
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: var(--space-4);
        width: 100%;
    }
    .header-cta { display: none !important; } /* Mobilde gizle, menü içinden ulaşılabilir */

    /* ── Mobil Nav Paneli ── */
    .main-nav {
        display: none !important;
        position: fixed !important;
        top: var(--header-height) !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        height: calc(100vh - var(--header-height)) !important;
        height: calc(100dvh - var(--header-height)) !important;
        background-color: var(--color-white) !important;
        flex-direction: column !important;
        justify-content: flex-start !important;
        padding: 0 !important;
        margin: 0 !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
        z-index: 99999 !important;
        border-top: 2px solid var(--color-accent) !important;
        box-shadow: 0 10px 30px rgba(0,0,0,.15) !important;
    }
    .main-nav.is-open {
        display: flex !important;
    }
    .nav-item--mobile-cta {
        display: block !important;
    }

    /* Nav liste */
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        width: 100%;
    }
    .nav-item { width: 100%; }
    .nav-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--space-4) var(--space-6);
        font-size: var(--font-size-base);
        font-weight: var(--font-weight-medium);
        border-bottom: 1px solid var(--color-border);
        border-radius: 0;
        white-space: normal;
        width: 100%;
    }
    .nav-link::after { display: none; }
    .nav-link:hover {
        background-color: var(--color-off-white);
    }
    .nav-chevron {
        flex-shrink: 0;
        transition: transform var(--transition-normal);
    }
    .nav-item--has-dropdown.is-open .nav-chevron {
        transform: rotate(180deg);
    }

    /* Mobil Mega Menu (accordion) */
    .mega-menu {
        position: static !important;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        box-shadow: none !important;
        border-top: none !important;
        border: none !important;
        padding: 0;
        display: none;
        background-color: var(--color-off-white);
        pointer-events: auto !important;
        max-height: none;
    }
    .nav-item--has-dropdown.is-open .mega-menu {
        display: block;
    }
    .mega-menu__inner {
        padding: var(--space-3) var(--space-4);
    }
    .mega-menu__header {
        display: none;
    }
    .mega-menu__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-1);
    }
    .mega-menu__item {
        flex-direction: row;
        align-items: center;
        gap: var(--space-2);
        padding: var(--space-3) var(--space-3);
        background: var(--color-white);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
    }
    .mega-menu__item-img { display: none; }
    .mega-menu__item-title {
        padding: 0;
        font-size: var(--font-size-sm);
        font-weight: var(--font-weight-medium);
        color: var(--color-text);
    }

    /* Mobil CTA buton – menü altında */
    .main-nav::after {
        content: "";
        display: block;
        padding: var(--space-4) var(--space-6);
    }

    /* ── İçerik ─ */
    .section { padding: var(--space-16) 0; }
    .section--lg { padding: var(--space-20) 0; }
    .hero { min-height: calc(100svh - var(--header-height)); }
    .hero__content { padding: var(--space-12) 0 var(--space-24); }
    .hero__actions { flex-direction: column; align-items: stretch; }
    .hero__actions .btn { justify-content: center; }
    .services-grid { grid-template-columns: 1fr; }
    .services-grid--4col { grid-template-columns: 1fr; }
    .why-us-grid { grid-template-columns: 1fr; }
    .about-intro { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: var(--space-8); }
    .footer-bottom__inner { flex-direction: column; text-align: center; gap: var(--space-3); }
    .footer-legal { flex-wrap: wrap; justify-content: center; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form { padding: var(--space-6); }
    .projects-grid { grid-template-columns: 1fr; }
    .cta-section__actions { flex-direction: column; align-items: stretch; }
    .cta-section__actions .btn { justify-content: center; }
    .site-logo img { height: 48px; }
    .page-hero { padding: var(--space-12) 0; }
    .service-content { grid-template-columns: 1fr; }
    .error-page__code { font-size: 5rem; }
    .related-services__grid { grid-template-columns: 1fr 1fr; }

    /* FAQ mobil */
    .faq-question { padding: var(--space-4) var(--space-5); font-size: var(--font-size-sm); }
    .faq-answer { padding: 0 var(--space-5) var(--space-4); }

    /* Breadcrumb mobil */
    .breadcrumb { padding: var(--space-3) 0; }
    .breadcrumb__list { flex-wrap: wrap; font-size: var(--font-size-xs); }
}

/* ─── KÜÇÜK MOBİL: ≤ 480px ─── */
@media (max-width: 480px) {
    .mega-menu__grid { grid-template-columns: 1fr 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .related-services__grid { grid-template-columns: 1fr; }
    .hero__title { font-size: 1.75rem; }
    .btn--lg { padding: var(--space-4) var(--space-6); }
    .section-title { font-size: var(--font-size-2xl); }
    .contact-form { padding: var(--space-4); }
    .footer-logo img { height: 60px; }
    .nav-link { padding: var(--space-3) var(--space-4); }
}

/* ─── FOCUS Erişilebilirlik ─── */
:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}