:root {
    --color-anthracite: #1f252b;
    --color-orange: #df7f42;
    --color-orange-hover: #e99562;
    --color-text: var(--color-anthracite);
    --color-muted: #58616c;
    --color-white: #fff;
    --color-background: #fff;
    --color-surface: #f4f5f6;
    --color-border: #d7dce0;
    --color-control-border: #77828c;
    --color-footer-text: #c9cfd5;
    --color-accent-soft: #fbf1e9;
    --color-accent-ink: #84451d;
    --color-success: #23583d;
    --color-success-bg: #eff6f1;
    --color-error: #9c2926;
    --color-error-bg: #fcf1f0;
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --text-xs: .75rem;
    --text-sm: .875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-h1: clamp(2rem, 4vw, 3.25rem);
    --text-h2: clamp(1.5rem, 2.5vw, 2.125rem);
    --text-h3: 1.125rem;
    --space-1: .25rem;
    --space-2: .5rem;
    --space-3: .75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 3rem;
    --space-8: 4.5rem;
    --container-wide: 82rem;
    --container-reading: 46rem;
    --gutter: clamp(1rem, 3vw, 2rem);
    --radius-sm: .25rem;
    --radius-md: .5rem;
    --border: 1px solid var(--color-border);
    --focus-color: #8a451e;
    --focus-ring: 3px solid var(--focus-color);
    /* Kırılımlar: 40rem (ızgara), 56rem (footer), 72rem (menü).
       CSS değişkenleri native media koşullarında çalışmaz; aşağıda sabittir. */
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { font-family: var(--font-sans); color: var(--color-text); background: var(--color-background); line-height: 1.6; }
body { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-underline-offset: .25em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: var(--focus-ring); outline-offset: 4px; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.025em; overflow-wrap: anywhere; }
h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
p { overflow-wrap: anywhere; }
.container { width: min(calc(100% - var(--gutter) * 2), var(--container-wide)); margin-inline: auto; }
.main-content { min-height: 55vh; padding-block: var(--space-6) var(--space-8); }
.main-content:focus { outline: none; }
.skip-link { position: absolute; z-index: 10; left: var(--space-4); top: -6rem; background: var(--color-white); padding: var(--space-3); }
.skip-link:focus { top: var(--space-2); }
.utility-bar { background: var(--color-anthracite); color: var(--color-white); font-size: var(--text-xs); }
.utility-bar .container { display: flex; justify-content: space-between; gap: var(--space-4); padding-block: var(--space-2); }
.utility-bar span { color: var(--color-orange); font-weight: 700; letter-spacing: .14em; }
.utility-bar .container { align-items: center; padding-block: 0; }
.utility-brand { display: none; margin: 0; }
.utility-contact { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 0 var(--space-5); margin: 0 0 0 auto; padding: 0; list-style: none; }
.utility-contact a { display: inline-flex; align-items: center; gap: var(--space-2); min-height: 44px; color: var(--color-white); font-weight: 650; text-decoration: none; }
.utility-contact a:hover { text-decoration: underline; }
.utility-contact .icon { width: 1rem; height: 1rem; filter: invert(1); }
.utility-bar :focus-visible { --focus-ring: 3px solid var(--color-orange); }
.site-header { border-bottom: var(--border); background: var(--color-white); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; padding-block: var(--space-4); }
.brand { flex-shrink: 0; }
.brand img { width: clamp(10rem, 20vw, 13rem); height: auto; }
.site-navigation { display: flex; width: 100%; flex-direction: column; gap: var(--space-2); border-top: var(--border); padding-top: var(--space-4); }
.nav-link { display: inline-flex; align-items: center; min-height: 44px; padding: var(--space-2) var(--space-3); text-decoration: none; font-size: var(--text-sm); font-weight: 650; }
.nav-link[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--color-orange); text-decoration-thickness: 3px; text-underline-offset: .6em; }
.icon { width: 1.25rem; height: 1.25rem; flex-shrink: 0; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-3); min-height: 46px; max-width: 100%; padding: .7rem 1.1rem; border: 1px solid transparent; border-radius: var(--radius-sm); font-size: var(--text-sm); font-weight: 700; line-height: 1.4; text-decoration: none; text-align: center; }
.button-primary { color: var(--color-anthracite); background: var(--color-orange); }
.button-primary:hover:not(:disabled) { background: var(--color-orange-hover); }
.button-secondary { color: var(--color-white); background: var(--color-anthracite); }
.button-secondary .icon { filter: invert(1); }
.button-outline { color: var(--color-text); background: transparent; border-color: var(--color-control-border); }
.button-outline:hover:not(:disabled) { background: var(--color-surface); }
.button:disabled { cursor: not-allowed; opacity: .6; }
.button-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.eyebrow { color: var(--color-accent-ink); font-size: var(--text-xs); font-weight: 750; letter-spacing: .12em; line-height: 1.5; }
.page-heading { max-width: var(--container-reading); margin-block: var(--space-6); }
.page-heading h1 { margin-block: var(--space-3) var(--space-4); }
.section-heading { margin-bottom: var(--space-5); }
.section-heading h2 { margin-top: var(--space-2); }
.section-description { color: var(--color-muted); max-width: var(--container-reading); margin-top: var(--space-3); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: var(--space-2); list-style: none; padding: 0; margin: 0; font-size: var(--text-sm); color: var(--color-muted); }
.breadcrumb li + li::before { content: "/"; margin-right: var(--space-2); }
.notice { padding: var(--space-5); border: var(--border); border-left: 3px solid var(--color-control-border); border-radius: var(--radius-sm); background: var(--color-surface); }
.notice strong { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-1); }
.notice p { font-size: var(--text-sm); }
.notice-success { color: var(--color-success); background: var(--color-success-bg); border-left-color: var(--color-success); }
.notice-error { color: var(--color-error); background: var(--color-error-bg); border-left-color: var(--color-error); }
.badge { display: inline-flex; align-items: center; align-self: flex-start; padding: var(--space-1) var(--space-3); border: 1px solid var(--color-orange); border-radius: var(--radius-sm); background: var(--color-accent-soft); color: var(--color-accent-ink); font-size: var(--text-xs); font-weight: 700; }
.preview-section { margin-top: var(--space-7); padding-top: var(--space-7); border-top: var(--border); }
.preview-intro { display: flex; justify-content: space-between; gap: var(--space-5); flex-wrap: wrap; margin-bottom: var(--space-6); }
.preview-intro h2 { margin-top: var(--space-2); }
.token-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-3); }
.swatch { padding: var(--space-5); border-radius: var(--radius-sm); min-height: 7rem; display: flex; flex-direction: column; justify-content: space-between; }
.swatch span { font-size: var(--text-sm); }
.swatch-anthracite { background: var(--color-anthracite); color: var(--color-white); }
.swatch-orange { background: var(--color-orange); color: var(--color-anthracite); }
.swatch-neutral { background: var(--color-surface); border: var(--border); }
.card-grid, .form-grid, .message-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-5); }
.card { min-width: 0; border: var(--border); border-radius: var(--radius-md); overflow: hidden; background: var(--color-white); display: flex; flex-direction: column; }
.card-body { padding: var(--space-5); display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-3); flex: 1; }
.card p { color: var(--color-muted); font-size: var(--text-sm); }
.card-service { border-top: 3px solid var(--color-orange); }
.card-article { background: var(--color-surface); }
.image-placeholder { aspect-ratio: 16 / 9; min-height: 8rem; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: var(--space-2); background: var(--color-surface); color: var(--color-muted); border-bottom: var(--border); font-size: var(--text-sm); }
.text-link { display: inline-flex; gap: var(--space-2); align-items: center; min-height: 44px; font-weight: 650; }
.facts { width: 100%; margin: 0; font-size: var(--text-sm); }
.facts div { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-2); padding-block: var(--space-2); border-top: var(--border); }
.facts dt { color: var(--color-muted); }
.facts dd { margin: 0; font-weight: 600; }
.form-panel { min-width: 0; margin: 0 0 var(--space-5); border: var(--border); border-radius: var(--radius-md); padding: var(--space-5); }
.form-panel legend { padding-inline: var(--space-2); font-size: var(--text-sm); font-weight: 650; }
.field { display: flex; flex-direction: column; gap: var(--space-2); min-width: 0; margin-bottom: var(--space-5); }
.field label { font-weight: 600; font-size: var(--text-sm); }
.field input:not([type="checkbox"]), .field select, .field textarea { width: 100%; min-width: 0; min-height: 46px; padding: .7rem var(--space-3); border: 1px solid var(--color-control-border); border-radius: var(--radius-sm); background: var(--color-white); color: var(--color-text); }
.field textarea { resize: vertical; }
.field input[aria-invalid="true"], .field select[aria-invalid="true"], .field textarea[aria-invalid="true"] { border: 2px solid var(--color-error); }
.field input:disabled { background: var(--color-surface); }
.field-hint, .field-error { font-size: var(--text-sm); }
.field-hint { color: var(--color-muted); }
.field-error { color: var(--color-error); }
.field-checkbox { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr); align-items: start; gap: var(--space-3); }
.field-checkbox input { width: 1.25rem; height: 1.25rem; margin: .75rem 0 0; accent-color: var(--color-anthracite); }
.field-checkbox label { padding-block: var(--space-3); cursor: pointer; }
.field-checkbox .field-hint, .field-checkbox .field-error { grid-column: 2; }
.cta-panel { display: flex; flex-direction: column; align-items: flex-start; gap: var(--space-5); background: var(--color-anthracite); color: var(--color-white); padding: clamp(1.5rem, 4vw, 3rem); border-radius: var(--radius-md); }
.cta-panel .eyebrow { color: var(--color-orange); }
.cta-panel h2 { margin-block: var(--space-2) var(--space-3); }
.cta-panel p:not(.eyebrow) { color: var(--color-footer-text); max-width: 42rem; }
.cta-panel :focus-visible, .site-footer :focus-visible { --focus-ring: 3px solid var(--color-orange); }
.empty-state { text-align: center; padding: var(--space-7) var(--space-5); border: 1px dashed var(--color-control-border); margin-top: var(--space-5); border-radius: var(--radius-md); }
.empty-state .icon { margin: 0 auto var(--space-3); }
.empty-state p { color: var(--color-muted); margin-top: var(--space-2); }
.site-footer { background: var(--color-anthracite); color: var(--color-white); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-6); padding-block: var(--space-7); }
.footer-brand > a img { width: 12rem; height: auto; margin-bottom: var(--space-4); }
.footer-brand p { max-width: 22rem; }
.site-footer p, .footer-links { font-size: var(--text-sm); color: var(--color-footer-text); }
.footer-title { font-size: var(--text-sm); letter-spacing: 0; margin-bottom: var(--space-3); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links a { display: inline-flex; min-height: 32px; align-items: center; text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
.footer-brand .footer-contact { margin-top: var(--space-4); }
.footer-contact { list-style: none; padding: 0; margin: 0; font-size: var(--text-sm); color: var(--color-footer-text); overflow-wrap: anywhere; }
.footer-contact li { display: flex; align-items: center; gap: var(--space-2); padding-block: var(--space-1); }
.footer-contact .icon { width: 1.25rem; height: 1.25rem; filter: invert(1); }
.footer-contact a { display: inline-flex; min-height: 44px; align-items: center; gap: var(--space-2); text-decoration: none; }
.footer-contact a:hover { text-decoration: underline; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-4); border-top: 1px solid var(--color-control-border); padding-block: var(--space-5); color: var(--color-footer-text); }
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: var(--space-5); font-size: var(--text-sm); }
.footer-bottom nav a { display: inline-flex; align-items: center; min-height: 44px; }
@media (min-width: 40rem) {
    .utility-brand { display: block; }
    .token-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .card-grid, .form-grid, .message-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 56rem) {
    .footer-grid { grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr)); }
    .cta-panel { flex-direction: row; align-items: center; justify-content: space-between; }
    .cta-panel .button { flex-shrink: 0; }
}
@media (min-width: 72rem) {
    .header-inner { flex-wrap: nowrap; }
    .site-navigation { flex: 1 1 auto; width: auto; margin-left: var(--space-6); flex-direction: row; align-items: center; gap: var(--space-1); padding: 0; border: 0; }
    .site-navigation .button { margin-left: auto; }
    .nav-link { padding-inline: var(--space-2); }
    .card-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}

/* JS kapalı menü, gizli JS menüsünden bağımsız olarak erişilebilir kalır. */
.header-inner > noscript { width: 100%; }
@media (min-width: 72rem) { .header-inner > noscript { display: flex; flex: 1 1 auto; width: auto; margin-left: var(--space-6); } .header-inner > noscript .site-navigation { flex: 1 1 auto; margin-left: 0; } }
.fixed-zone { position: sticky; z-index: 50; bottom: 0; height: 0; }
.fixed-contact { position: absolute; left: max(var(--space-4), env(safe-area-inset-left)); bottom: max(var(--space-4), env(safe-area-inset-bottom)); display: flex; flex-direction: column; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.fixed-contact a, .scroll-top { display: flex; align-items: center; justify-content: center; width: 2.75rem; height: 2.75rem; border-radius: var(--radius-sm); box-shadow: 0 2px 8px rgb(31 37 43 / .3); }
.fixed-contact a { background: var(--color-anthracite); border: 1px solid rgb(255 255 255 / .35); }
.fixed-contact a:hover { background: #343c44; }
.fixed-contact .icon { filter: invert(1); }
.scroll-top { position: absolute; right: max(var(--space-4), env(safe-area-inset-right)); bottom: max(var(--space-4), env(safe-area-inset-bottom)); background: var(--color-orange); border: 1px solid var(--color-anthracite); color: var(--color-anthracite); text-decoration: none; }
.scroll-top:hover { background: var(--color-orange-hover); }
@media print { .fixed-contact, .scroll-top { display: none; } }
.card-media-link { display: block; min-width: 0; }
.card-title-link { color: inherit; text-decoration: none; }
.card-title-link:hover { text-decoration: underline; text-decoration-color: var(--color-orange); text-decoration-thickness: 2px; }

.banner-content:focus { outline: none; }
.page-banner { --banner-image: url("/assets/images/home/hero-mobile.webp"); padding-block: var(--space-6); border-bottom: 3px solid var(--color-orange); background: linear-gradient(rgb(31 37 43 / .78), rgb(31 37 43 / .78)), var(--banner-image) center / cover no-repeat var(--color-anthracite); color: var(--color-white); }
.page-banner h1 { max-width: 56rem; margin-top: var(--space-4); }
.page-banner .breadcrumb ol { color: rgb(255 255 255 / .85); }
.page-banner .breadcrumb a { color: var(--color-white); }
.page-banner .breadcrumb [aria-current="page"] { color: var(--color-orange-hover); }
.page-banner :focus-visible { --focus-ring: 3px solid var(--color-orange); }
.page-banner + .main-content { padding-top: var(--space-6); }
@media (min-width: 48rem) { .page-banner { --banner-image: url("/assets/images/home/hero-desktop.webp"); padding-block: var(--space-7); } }