:root {
    --primary: #0f3a3a;
    --primary-light: #39b7b7;
    --primary-deep: #062424;
    --accent: #df7e0a;
    --accent-light: #f29722;
    --ink: #0b1220;
    --ink-soft: #1f2937;
    --muted: #6b7280;
    --line: #e5e7eb;
    --bg: #ffffff;
    --bg-soft: #f7f8f9;
    --bg-hard: #0b1220;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.04);
    --shadow-md: 0 6px 14px rgba(0,0,0,.08);
    --shadow-lg: 0 18px 40px rgba(0,0,0,.12);
    --radius: 0; /* keskin köşeler */
    --radius-sm: 2px;
    --header-h: 140px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.65;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px;
}

/* ============ HEADER ============ */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--header-h);
    background: rgba(255,255,255,.95);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--line);
    transition: box-shadow .25s ease, background .25s ease;
}
.header.scrolled { box-shadow: var(--shadow-md); }
.header-content {
    height: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    padding-top: 22px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.logo img {
    height: 96px;
    width: 96px;
    object-fit: contain;
}
.logo-text {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 24px;
    letter-spacing: 2px;
    color: var(--primary);
    line-height: 1;
}
.nav { align-self: center; }
.header-right {
    display: flex;
    align-items: center;
    gap: 14px;
    align-self: center;
}
.nav {
    display: flex;
    list-style: none;
    gap: 4px;
}
.nav a {
    color: var(--ink-soft);
    font-weight: 500;
    font-size: 14px;
    letter-spacing: .8px;
    text-transform: uppercase;
    padding: 12px 18px;
    position: relative;
    transition: color .2s ease;
}
.nav a:hover, .nav a.active { color: var(--primary); }
.nav a::after {
    content: '';
    position: absolute;
    left: 18px; right: 18px;
    bottom: 6px;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .25s ease;
}
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
}
.lang-switcher a {
    color: var(--muted);
    padding: 8px 6px;
    transition: color .2s ease;
}
.lang-switcher a:hover, .lang-switcher a.active {
    color: var(--accent);
}
.lang-divider { color: var(--line); }

.mobile-menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.mobile-menu-toggle span { width: 24px; height: 2px; background: var(--primary); }
.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
}
.mobile-nav.active { display: block; }
.mobile-nav a {
    display: block;
    padding: 16px 28px;
    border-bottom: 1px solid var(--line);
    font-weight: 500;
    color: var(--ink-soft);
}
.mobile-nav a:hover { background: var(--bg-soft); color: var(--primary); }
.mobile-nav-lang {
    display: flex;
    border-bottom: 1px solid var(--line);
    background: var(--bg-soft);
}
.mobile-nav-lang a {
    flex: 1;
    text-align: center;
    border-bottom: 0;
    border-right: 1px solid var(--line);
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--muted);
    padding: 14px 0;
}
.mobile-nav-lang a:last-child { border-right: 0; }
.mobile-nav-lang a.active { color: var(--accent); background: #fff; }

/* ============ HERO ============ */
.hero {
    margin-top: var(--header-h);
    background:
        linear-gradient(180deg, rgba(6,36,36,.55) 0%, rgba(6,36,36,.85) 100%),
        radial-gradient(ellipse at 30% 20%, rgba(57,183,183,.4), transparent 60%),
        var(--primary-deep);
    color: #fff;
    padding: 110px 0 100px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath d='M0 39.5h40M39.5 0v40' stroke='%23ffffff' stroke-opacity='0.04' stroke-width='1'/%3E%3C/svg%3E");
    pointer-events: none;
}
.hero-content {
    position: relative;
    max-width: 880px;
    z-index: 2;
}
.hero .eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent-light);
    border-left: 3px solid var(--accent);
    padding-left: 12px;
    margin-bottom: 22px;
}
.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 20px;
}
.hero h1 em { font-style: normal; color: var(--accent-light); }
.hero .subtitle {
    font-size: 1.125rem;
    color: rgba(255,255,255,.78);
    max-width: 640px;
    margin-bottom: 38px;
    font-weight: 400;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    transition: all .25s ease;
    border-radius: var(--radius-sm);
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-1px); }
.btn-ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,.35);
}
.btn-ghost:hover { background: #fff; color: var(--primary); }
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

/* ============ SECTION COMMON ============ */
section { padding: 110px 0; }
.section-header {
    margin-bottom: 56px;
    max-width: 720px;
}
.section-header.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-header .eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 14px;
    border-left: 3px solid var(--accent);
    padding-left: 12px;
}
.section-header.center .eyebrow { border-left: none; padding-left: 0; }
.section-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.9rem, 3.4vw, 2.6rem);
    color: var(--primary);
    line-height: 1.18;
    margin-bottom: 14px;
    letter-spacing: -.5px;
}
.section-header p {
    color: var(--muted);
    font-size: 1.05rem;
}

/* ============ ABOUT ============ */
.about { background: var(--bg); }
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 70px;
    align-items: center;
}
.about-text p {
    color: var(--ink-soft);
    margin-bottom: 18px;
    font-size: 1.02rem;
}
.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    margin-top: 36px;
    border-top: 1px solid var(--line);
}
.stat {
    padding: 28px 18px 0 18px;
    border-right: 1px solid var(--line);
    text-align: left;
}
.stat:last-child { border-right: none; }
.stat .num {
    font-family: 'Playfair Display', serif;
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--primary);
    display: block;
    line-height: 1;
}
.stat .lbl {
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin-top: 8px;
    display: block;
}
.about-visual {
    position: relative;
    aspect-ratio: 4 / 5;
    background:
        linear-gradient(135deg, rgba(15,58,58,.06), rgba(223,126,10,.05)),
        var(--bg-soft);
    border: 1px solid var(--line);
    overflow: hidden;
}
.about-visual > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.about-visual.has-image::before { display: none; }
.about-visual::before {
    content: '';
    position: absolute;
    top: 24px; left: 24px;
    width: 72px; height: 4px;
    background: var(--accent);
    z-index: 2;
}
.about-visual .badge { z-index: 2; }
.about-visual .badge {
    position: absolute;
    bottom: 28px; left: 28px;
    background: var(--primary);
    color: #fff;
    padding: 18px 22px;
    font-family: 'Playfair Display', serif;
    font-size: 1.05rem;
    line-height: 1.3;
    max-width: 240px;
}

/* ============ ARTICLES PREVIEW ============ */
.articles-preview { background: var(--bg-soft); }
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}
.article-card {
    background: #fff;
    border: 1px solid var(--line);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.article-card .cover {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    overflow: hidden;
    position: relative;
}
.article-card .cover img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform .5s ease;
}
.article-card:hover .cover img { transform: scale(1.04); }
.article-card .meta {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.4px;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 12px;
}
.article-card .body {
    padding: 28px 26px 30px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.article-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.35rem;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 12px;
    letter-spacing: -.3px;
}
.article-card p {
    color: var(--muted);
    font-size: 0.97rem;
    margin-bottom: 22px;
    flex: 1;
}
.article-card .read {
    color: var(--accent);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: gap .25s ease;
}
.article-card:hover .read { gap: 14px; }

/* ============ TEAM ============ */
.team { background: var(--bg); }
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}
.team-card {
    background: #fff;
    border: 1px solid var(--line);
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.team-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
}
.team-card .photo {
    aspect-ratio: 4 / 5;
    background: var(--bg-soft);
    overflow: hidden;
    border-bottom: 3px solid var(--accent);
}
.team-card .photo img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.team-card .info { padding: 28px 26px 32px; }
.team-card .info h3 {
    font-family: 'Playfair Display', serif;
    color: var(--primary);
    font-size: 1.35rem;
    margin-bottom: 6px;
    letter-spacing: -.3px;
}
.team-card .info .role {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}
.team-card .info .bio {
    color: var(--ink-soft);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============ CONTACT ============ */
.contact {
    background: var(--primary-deep);
    color: #fff;
}
.contact .section-header h2 { color: #fff; }
.contact .section-header .eyebrow { color: var(--accent-light); }
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 36px;
}
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}
.contact-icon {
    width: 44px; height: 44px;
    background: var(--accent);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.contact-detail h4 {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-light);
    margin-bottom: 8px;
}
.contact-detail p, .contact-detail a {
    color: rgba(255,255,255,.85);
    line-height: 1.6;
    font-size: 0.98rem;
    white-space: pre-line;
}
.contact-detail a:hover { color: var(--accent-light); }

/* ============ FOOTER ============ */
.footer {
    background: var(--ink);
    color: rgba(255,255,255,.7);
    padding: 70px 0 30px;
    border-top: 3px solid var(--accent);
}
.footer-content {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}
.footer-section h3 {
    font-family: 'Playfair Display', serif;
    color: #fff;
    font-size: 1.1rem;
    letter-spacing: 1px;
    margin-bottom: 18px;
}
.footer-section p, .footer-section a {
    color: rgba(255,255,255,.65);
    line-height: 2;
    font-size: 0.93rem;
}
.footer-section i { color: var(--accent); margin-right: 10px; width: 16px; }
.footer-section a:hover { color: var(--accent-light); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: 22px;
    text-align: center;
    font-size: 12px;
    letter-spacing: 1px;
    color: rgba(255,255,255,.5);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .container { padding: 0 22px; }
    .articles-preview .section-header {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 18px;
    }
}
@media (max-width: 980px) {
    :root { --header-h: 118px; }
    .nav { display: none; }
    .header-content { grid-template-columns: 1fr auto 1fr; }
    .logo img { height: 78px; width: 78px; }
    .logo-text { font-size: 18px; letter-spacing: 2.4px; }
    .mobile-menu-toggle { display: flex; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-visual { max-width: 480px; margin: 0 auto; }
    .footer-content { grid-template-columns: 1fr; gap: 30px; text-align: left; }
    section { padding: 70px 0; }
    .hero { padding: 70px 0 60px; }
    .hero h1 { letter-spacing: -.5px; }
    .articles-grid { gap: 22px; }
    .team-grid { gap: 22px; }
    .btn { padding: 14px 26px; font-size: 13px; }
    .section-header { margin-bottom: 40px; }
}
@media (max-width: 720px) {
    :root { --header-h: 104px; }
    .container { padding: 0 18px; }
    .logo img { height: 64px; width: 64px; }
    .logo-text { font-size: 15px; letter-spacing: 2px; }
    .lang-switcher { font-size: 12px; gap: 4px; }
    .lang-switcher a { padding: 6px 4px; }
    .hero { padding: 56px 0 50px; }
    .hero .eyebrow { font-size: 11px; letter-spacing: 3px; margin-bottom: 16px; }
    .hero h1 { font-size: 2rem; }
    .hero .subtitle { font-size: 1rem; margin-bottom: 28px; }
    .hero-actions { gap: 10px; }
    .hero-actions .btn { flex: 1; min-width: 0; justify-content: center; padding: 14px 18px; }
    section { padding: 56px 0; }
    .section-header { margin-bottom: 32px; }
    .section-header h2 { font-size: 1.6rem; }
    .about-text p { font-size: .98rem; }
    .article-card .body { padding: 22px 20px 26px; }
    .article-card h3 { font-size: 1.18rem; }
    .team-card .info { padding: 22px 20px 26px; }
    .team-card .info h3 { font-size: 1.2rem; }
    .contact-grid { gap: 24px; }
}
@media (max-width: 480px) {
    :root { --header-h: 92px; }
    .logo img { height: 56px; width: 56px; }
    .logo-text { font-size: 13px; letter-spacing: 1.6px; }
    .hero h1 { font-size: 1.7rem; line-height: 1.18; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { width: 100%; }
    .about-stats { grid-template-columns: 1fr; border-top: 0; }
    .stat { border-right: none; border-top: 1px solid var(--line); padding: 22px 0 0; }
    .footer { padding: 50px 0 24px; }
    .section-header h2 { font-size: 1.45rem; }
}