/* Dijital Pazarlama Mühendisi — marka stil sistemi
   Harici font/kütüphane yok: hızlı yüklenme ve yüksek Core Web Vitals için. */

:root {
    --navy: #0f172a;
    --navy-2: #1e293b;
    --teal: #0d9488;
    --teal-light: #14b8a6;
    --orange: #f97316;
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --border: #e2e8f0;
    --text: #1e293b;
    --text-muted: #64748b;
    --radius: 10px;
    --shadow: 0 4px 20px rgba(15, 23, 42, 0.07);
    --max-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

img { max-width: 100%; display: block; }

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { color: var(--navy); line-height: 1.25; font-weight: 700; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
.muted { color: var(--text-muted); }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section { padding: 56px 0; }
.section-soft { background: var(--bg-soft); }
.section-header { max-width: 640px; margin: 0 auto 36px; text-align: center; }

.eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--teal);
    background: rgba(13, 148, 136, 0.1);
    padding: 5px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.highlight { color: var(--teal); }

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--navy);
    color: #fff;
    padding: 10px 16px;
    z-index: 1000;
}
.skip-link:focus { left: 8px; top: 8px; }

/* Header */
.site-header {
    background: var(--navy);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-weight: 700;
}
.brand:hover { text-decoration: none; }

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--teal-light), var(--teal));
    color: #fff;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.brand-name { font-size: 1rem; }

.main-nav {
    display: flex;
    align-items: center;
    gap: 22px;
}
.main-nav a {
    color: #cbd5e1;
    font-weight: 500;
    font-size: 0.95rem;
}
.main-nav a:hover { color: #fff; text-decoration: none; }
.main-nav .nav-cta {
    background: var(--orange);
    color: #fff;
    padding: 9px 18px;
    border-radius: 999px;
    font-weight: 600;
}
.main-nav .nav-cta:hover { background: #ea6a0c; text-decoration: none; }

.nav-toggle { display: none; }
.nav-toggle-label {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.nav-toggle-label span {
    width: 24px;
    height: 2px;
    background: #fff;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 999px;
    font-weight: 600;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: #ea6a0c; color: #fff; }
.btn-outline { background: transparent; border-color: #fff; color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-outline-navy { background: transparent; border-color: var(--navy); color: var(--navy); }
.btn-outline-navy:hover { background: var(--navy); color: #fff; }
.btn-small { padding: 6px 14px; font-size: 0.85rem; }
.btn-danger { background: #dc2626; color: #fff; }

/* Hero */
.hero {
    background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
    color: #fff;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}
.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
}
.hero::before {
    width: 420px;
    height: 420px;
    background: rgba(13, 148, 136, 0.25);
    top: -140px;
    right: -100px;
}
.hero::after {
    width: 320px;
    height: 320px;
    background: rgba(249, 115, 22, 0.15);
    bottom: -120px;
    left: -80px;
}
.hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero h1 { color: #fff; }
.hero p.lead { color: #cbd5e1; font-size: 1.15rem; max-width: 520px; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-badge {
    display: inline-block;
    background: rgba(20, 184, 166, 0.15);
    color: var(--teal-light);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 18px;
}
.hero-stats {
    display: flex;
    gap: 28px;
    margin-top: 40px;
    flex-wrap: wrap;
}
.hero-stats div strong { display: block; font-size: 1.6rem; color: #fff; }
.hero-stats div span { color: #94a3b8; font-size: 0.85rem; }
/* Hero'daki portfolyo mockup kartları */
.hero-mockup {
    position: relative;
    min-height: 280px;
}
.mockup-card {
    position: absolute;
    width: 78%;
    background: #1e293b;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.35);
    border: 1px solid rgba(255,255,255,0.08);
}
.mockup-card img { display: block; width: 100%; aspect-ratio: 16/10; object-fit: cover; object-position: top; }
.mockup-bar { display: flex; gap: 6px; padding: 10px 12px; background: #0f172a; }
.mockup-bar span { width: 8px; height: 8px; border-radius: 50%; background: #475569; }
.mockup-card-back {
    top: 0;
    right: 0;
    transform: rotate(4deg);
    opacity: 0.85;
}
.mockup-card-front {
    bottom: 0;
    left: 0;
    transform: rotate(-3deg);
    z-index: 1;
}

/* Sektör şeridi (anasayfa, hero altı) */
.industry-strip {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 20px 0;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}
.industry-strip span { font-weight: 600; color: var(--navy); }
.industry-strip a {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 0.85rem;
}
.industry-strip a:hover { border-color: var(--teal); color: var(--teal); text-decoration: none; }
.industry-strip a.active-filter { background: var(--navy); border-color: var(--navy); color: #fff; }

/* Grids / cards */
.grid { display: grid; gap: 24px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.12);
}
.card .icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(13, 148, 136, 0.1);
    color: var(--teal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 14px;
}
.card .card-cta { margin-top: auto; padding-top: 14px; font-weight: 600; }

.post-card img, .portfolio-card img {
    border-radius: var(--radius) var(--radius) 0 0;
    aspect-ratio: 16/9;
    object-fit: cover;
    width: 100%;
}
.post-card, .portfolio-card, .product-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.post-card:hover, .portfolio-card:hover, .product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.12);
}
.post-card .body, .portfolio-card .body, .product-card .body { padding: 20px; }
.post-card .date { color: var(--text-muted); font-size: 0.85rem; }

/* Portfolyo kartı "canlı önizleme": kart üzerine gelince tam sayfa görseli
   yavaşça yukarıdan aşağıya kaydırır — hover bitince başa döner. Görseldeki
   img etiketi zaten tam sayfa (uzun) görsel; burada sadece görünür pencereyi
   sabit tutup içindeki görseli kaydırıyoruz. */
.portfolio-preview-window {
    height: 220px;
    overflow: hidden;
    border-radius: var(--radius) var(--radius) 0 0;
}
.portfolio-preview-window img {
    aspect-ratio: auto;
    transition: transform 9s ease-in-out;
    transform: translateY(0);
}
.portfolio-card:hover .portfolio-preview-window img {
    transform: translateY(calc(-100% + 220px));
}

.badge-result {
    display: inline-block;
    background: rgba(249, 115, 22, 0.12);
    color: var(--orange);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Portfolyo/vaka çalışması sayfalarındaki bilgi kutusu — hem insan hem arama/AI
   motorları için taranabilir, net etiketlenmiş özet bilgiler. */
.fact-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 18px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin: 24px 0;
}
.fact-box dt {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    margin: 0 0 4px;
}
.fact-box dd {
    margin: 0;
    font-weight: 600;
    color: var(--navy);
}

/* Testimonials */
.testimonial {
    background: var(--bg-soft);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--border);
}
.testimonial .stars { color: var(--orange); margin-bottom: 10px; }
.testimonial .author { margin-top: 14px; font-weight: 700; color: var(--navy); }
.testimonial .author span { display: block; font-weight: 400; color: var(--text-muted); font-size: 0.85rem; }

/* CTA band */
.cta-band {
    background: linear-gradient(135deg, var(--teal), var(--teal-light));
    color: #fff;
    text-align: center;
    padding: 56px 0;
}
.cta-band h2 { color: #fff; }
.cta-band .btn-primary { background: var(--navy); }
.cta-band .btn-primary:hover { background: var(--navy-2); }

/* Forms */
.form-grid { display: grid; gap: 18px; max-width: 640px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-weight: 600; font-size: 0.9rem; color: var(--navy); }
.form-group input,
.form-group textarea,
.form-group select {
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}
.field-validation-error { color: #dc2626; font-size: 0.85rem; }
.validation-summary-errors { color: #dc2626; margin-bottom: 12px; }
.validation-summary-errors ul { margin: 0; padding-left: 18px; }
.honeypot-field { position: absolute; left: -9999px; opacity: 0; }
.alert-success {
    background: rgba(13, 148, 136, 0.1);
    border: 1px solid var(--teal);
    color: #0f766e;
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
}

/* Footer */
.site-footer { background: var(--navy); color: #cbd5e1; padding: 48px 0 0; }
.footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand p { color: #94a3b8; margin-top: 10px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links h4 { color: #fff; margin-bottom: 4px; }
.footer-links a { color: #cbd5e1; }
.footer-links a:hover { color: #fff; }
.footer-bottom { padding: 18px 0; text-align: center; color: #64748b; font-size: 0.85rem; }

/* Pagination */
/* Süreç adımları */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.step { text-align: center; }
.step-number {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--navy);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 16px;
}
.step h4 { margin-bottom: 6px; }

/* SSS akordiyon */
.faq { max-width: 760px; margin: 0 auto; display: grid; gap: 12px; }
.faq details {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 22px;
}
.faq summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--navy);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--teal); flex-shrink: 0; }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { margin: 12px 0 0; color: var(--text-muted); }

.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 32px; }
.pagination a, .pagination span {
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
}
.pagination .active { background: var(--navy); color: #fff; border-color: var(--navy); }

/* Admin */
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar { width: 240px; background: var(--navy); color: #cbd5e1; padding: 24px 16px; flex-shrink: 0; }
.admin-sidebar a { display: block; color: #cbd5e1; padding: 10px 12px; border-radius: 8px; margin-bottom: 4px; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: rgba(255,255,255,0.08); color: #fff; text-decoration: none; }
.admin-main { flex: 1; padding: 32px; background: var(--bg-soft); }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card { background: #fff; border-radius: var(--radius); padding: 20px; border: 1px solid var(--border); }
.stat-card strong { font-size: 1.8rem; display: block; color: var(--navy); }
table.data-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; }
table.data-table th, table.data-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.92rem; }
table.data-table th { background: var(--bg-soft); color: var(--navy); }
.table-wrap { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow-x: auto; }
.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.pill-green { background: rgba(13,148,136,0.12); color: var(--teal); }
.pill-gray { background: #e2e8f0; color: var(--text-muted); }
.pill-orange { background: rgba(249,115,22,0.12); color: var(--orange); }
.admin-filter-tabs { display: flex; gap: 6px; margin-bottom: 18px; flex-wrap: wrap; }
.admin-filter-tabs a {
    padding: 7px 14px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.88rem;
    font-weight: 600;
}
.admin-filter-tabs a:hover { text-decoration: none; border-color: var(--teal); color: var(--teal); }
.admin-filter-tabs a.active { background: var(--navy); border-color: var(--navy); color: #fff; }
.actions-row { display: flex; gap: 8px; align-items: center; }
.admin-login-shell { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--navy); }
.admin-login-card { background: #fff; padding: 40px; border-radius: var(--radius); width: 100%; max-width: 380px; }

/* Responsive */
@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-mockup { min-height: 220px; margin-top: 20px; }
    .mockup-card { width: 68%; }
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr; }
    .admin-sidebar { display: none; }
}

@media (max-width: 640px) {
    .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .nav-toggle-label { display: flex; }
    .main-nav {
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--navy);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 20px;
        gap: 14px;
        display: none;
    }
    .nav-toggle:checked ~ .main-nav { display: flex; }
    .admin-main { padding: 20px; }
}