/* =========================================================
   Fatih Murat Eyioğlu — Kişisel Web Sitesi
   Tema: Açık / Koyu mod destekli, lacivert + bordo aksan
   ========================================================= */

:root {
    --bg: #f6f6f4;
    --bg-alt: #ffffff;
    --bg-soft: #eef0f3;
    --text: #141a24;
    --text-muted: #57626f;
    --border: #e3e6ea;
    --primary: #0f1b33;
    --primary-2: #1c2f52;
    --accent: #8a1c2a;
    --accent-2: #b8894a;
    --card-bg: #ffffff;
    --shadow: 0 10px 30px rgba(15, 27, 51, 0.08);
    --shadow-sm: 0 2px 10px rgba(15, 27, 51, 0.06);
    --radius: 14px;
    --radius-sm: 8px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --header-h: 76px;
    /* Footer her zaman koyu lacivert bant olarak tasarlandı; --primary tema ile ters döndüğü için
       footer renkleri kasıtlı olarak temadan bağımsız, sabit tutulur. */
    --footer-bg: #0f1b33;
    --footer-text: rgba(255, 255, 255, .72);
    --footer-text-strong: #ffffff;
    --footer-border: rgba(255, 255, 255, .15);
    color-scheme: light;
}

[data-theme="dark"] {
    --bg: #0b0e14;
    --bg-alt: #10141d;
    --bg-soft: #151a25;
    --text: #eef1f5;
    --text-muted: #98a2b3;
    --border: #232a38;
    --primary: #dfe6f2;
    --primary-2: #b9c6dd;
    --accent: #c9536a;
    --accent-2: #d8a668;
    --card-bg: #10141d;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #0b0e14;
        --bg-alt: #10141d;
        --bg-soft: #151a25;
        --text: #eef1f5;
        --text-muted: #98a2b3;
        --border: #232a38;
        --primary: #dfe6f2;
        --primary-2: #b9c6dd;
        --accent: #c9536a;
        --accent-2: #d8a668;
        --card-bg: #10141d;
        --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
        --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);
        color-scheme: dark;
    }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    transition: background .25s ease, color .25s ease;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.container {
    width: 100%;
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; margin: 0 0 .5em; line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; color: var(--text-muted); }

.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.eyebrow {
    display: inline-block;
    font-size: .8rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: .95rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--primary); color: var(--bg-alt); }
[data-theme="dark"] .btn-primary { color: var(--bg); }
.btn-primary:hover { box-shadow: var(--shadow); }
.btn-outline { border-color: var(--border); color: var(--text); background: transparent; }
.btn-outline:hover { border-color: var(--primary); }
.btn-accent { background: var(--accent); color: #fff; }

/* ---------- Header ---------- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-h);
    display: flex;
    align-items: center;
    z-index: 500;
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: blur(14px) saturate(160%);
    border-bottom: 1px solid transparent;
    transition: border-color .25s ease, background .25s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--border); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; }

.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-serif); font-weight: 700; font-size: 1.15rem; }
.brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }

.nav-desktop { display: flex; align-items: center; gap: 34px; }
.nav-desktop a { font-size: .93rem; font-weight: 500; color: var(--text-muted); position: relative; padding: 6px 0; }
.nav-desktop a:hover, .nav-desktop a.active { color: var(--text); }
.nav-desktop a.active::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--accent);
}

.header-actions { display: flex; align-items: center; gap: 10px; }

.icon-btn {
    width: 40px; height: 40px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); background: var(--bg-alt);
    cursor: pointer; color: var(--text);
    transition: border-color .2s ease, transform .2s ease;
}
.icon-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn .icon-moon { display: none; }
[data-theme="dark"] .icon-btn .icon-sun { display: none; }
[data-theme="dark"] .icon-btn .icon-moon { display: block; }

.lang-btn { font-size: .8rem; font-weight: 700; letter-spacing: .04em; }

.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
    padding: calc(var(--header-h) + 64px) 0 80px;
    background:
        radial-gradient(1100px 480px at 85% -10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 60%),
        var(--bg);
}
.hero .container { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero-eyebrow { color: var(--accent); font-weight: 600; letter-spacing: .1em; text-transform: uppercase; font-size: .85rem; margin-bottom: 14px; }
.hero-name { margin-bottom: 6px; }
.hero-role { color: var(--text-muted); font-size: 1.15rem; margin-bottom: 22px; }
.hero-summary { max-width: 520px; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 34px; margin-top: 48px; flex-wrap: wrap; }
.hero-stat strong { display: block; font-family: var(--font-serif); font-size: 1.8rem; color: var(--text); }
.hero-stat span { font-size: .82rem; color: var(--text-muted); }

.hero-photo-wrap { position: relative; }
.hero-photo {
    aspect-ratio: 4/5; border-radius: var(--radius); overflow: hidden;
    background: linear-gradient(150deg, var(--primary), var(--primary-2));
    box-shadow: var(--shadow); position: relative;
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo .placeholder-initials {
    position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
    font-family: var(--font-serif); font-size: 5rem; color: rgba(255,255,255,.9); letter-spacing: .05em;
}
.hero-photo-badge {
    position: absolute; bottom: -18px; left: -18px;
    background: var(--card-bg); border: 1px solid var(--border);
    padding: 14px 18px; border-radius: var(--radius-sm); box-shadow: var(--shadow-sm);
    font-size: .82rem; color: var(--text-muted); max-width: 220px;
}
.hero-photo-badge strong { display: block; color: var(--text); font-size: .95rem; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.about-photo { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); aspect-ratio: 3/4; background: var(--bg-soft); }
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-body p { color: var(--text); }
.about-body .lede { font-size: 1.15rem; color: var(--text); }
.about-cta-row { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }

.mini-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 56px; }
.mini-stat { text-align: center; padding: 22px 12px; border-radius: var(--radius-sm); background: var(--bg-soft); }
.mini-stat strong { display: block; font-family: var(--font-serif); font-size: 2rem; }
.mini-stat span { font-size: .8rem; color: var(--text-muted); }

/* ---------- Timeline (experience) ---------- */
.timeline { position: relative; max-width: 820px; margin: 0 auto; padding-left: 32px; border-left: 2px solid var(--border); }
.timeline-item { position: relative; padding-bottom: 40px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
    content: ''; position: absolute; left: -39px; top: 4px;
    width: 14px; height: 14px; border-radius: 50%; background: var(--accent); border: 3px solid var(--bg);
    box-shadow: 0 0 0 2px var(--accent);
}
.timeline-period { font-size: .8rem; font-weight: 700; letter-spacing: .06em; color: var(--accent); text-transform: uppercase; margin-bottom: 4px; }
.timeline-role { font-family: var(--font-serif); font-size: 1.2rem; margin-bottom: 2px; }
.timeline-org { color: var(--text-muted); font-size: .92rem; margin-bottom: 10px; font-weight: 500; }
.timeline-desc { font-size: .95rem; }

/* ---------- Skills ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.skill-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 22px; }
.skill-card h4 { margin-bottom: 10px; font-family: var(--font-sans); font-weight: 700; font-size: .95rem; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag { font-size: .78rem; padding: 5px 12px; border-radius: 999px; background: var(--bg-soft); color: var(--text-muted); }

/* ---------- Services (numaralı hizmet kartları) ---------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 30px 26px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.service-number {
    font-family: var(--font-serif); font-size: 1rem; font-weight: 700; color: var(--accent);
    display: inline-flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; border-radius: 50%; border: 1.5px solid var(--accent);
    margin-bottom: 18px;
}
.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.service-card p { font-size: .92rem; margin: 0; }

/* ---------- Testimonials (referanslar) ---------- */
.testimonials-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.testimonial-card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 30px; display: flex; flex-direction: column; gap: 18px;
}
.testimonial-quote-mark { font-family: var(--font-serif); font-size: 2.6rem; line-height: 1; color: var(--accent); opacity: .5; }
.testimonial-text { font-size: 1rem; color: var(--text); font-style: italic; margin: 0; flex: 1; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
    width: 44px; height: 44px; border-radius: 50%; background: var(--primary-2);
    display: flex; align-items: center; justify-content: center; color: var(--bg-alt);
    font-family: var(--font-serif); font-weight: 700; font-size: 1rem; flex-shrink: 0;
}
[data-theme="dark"] .testimonial-avatar { color: var(--bg); }
.testimonial-author strong { display: block; font-size: .95rem; }
.testimonial-author span { font-size: .8rem; color: var(--text-muted); }

/* ---------- Cards grid (projects/blog) ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; transition: transform .2s ease, box-shadow .2s ease; display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card-media { aspect-ratio: 16/10; background: var(--bg-soft); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-tag { font-size: .74rem; text-transform: uppercase; letter-spacing: .07em; color: var(--accent); font-weight: 700; }
.card-title { font-family: var(--font-serif); font-size: 1.18rem; margin: 0; }
.card-excerpt { font-size: .92rem; flex: 1; }
.card-meta { font-size: .78rem; color: var(--text-muted); display: flex; gap: 10px; align-items: center; }
.card-link { font-size: .85rem; font-weight: 700; color: var(--accent); margin-top: 6px; }

.section-footer { text-align: center; margin-top: 48px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; }
.contact-info-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; height: fit-content; }
.contact-info-item { display: flex; gap: 14px; margin-bottom: 20px; align-items: flex-start; }
.contact-info-item svg { width: 20px; height: 20px; color: var(--accent); flex-shrink: 0; margin-top: 3px; }
.contact-info-item strong { display: block; font-size: .85rem; color: var(--text-muted); font-weight: 600; }
.social-row { display: flex; gap: 10px; margin-top: 24px; }

.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 8px; }
input[type=text], input[type=email], textarea, select {
    width: 100%; padding: 13px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border);
    background: var(--bg-alt); color: var(--text); font-family: inherit; font-size: .95rem;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; min-height: 140px; }

.alert { padding: 14px 18px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: .9rem; }
.alert-success { background: rgba(40,160,90,.12); color: #1c7a45; border: 1px solid rgba(40,160,90,.3); }
.alert-error { background: rgba(200,50,50,.1); color: #a52323; border: 1px solid rgba(200,50,50,.3); }

/* ---------- Footer ----------
   Kasıtlı olarak her zaman koyu lacivert bant: --footer-* değişkenleri temadan bağımsızdır (yukarıda :root). */
.site-footer { background: var(--footer-bg); color: var(--footer-text); padding: 64px 0 28px; margin-top: 40px; }
.site-footer a { color: var(--footer-text); }
.site-footer a:hover { color: var(--footer-text-strong); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand { font-family: var(--font-serif); font-size: 1.3rem; color: var(--footer-text-strong); margin-bottom: 10px; }
.footer-col h4 { color: var(--footer-text-strong); font-family: var(--font-sans); font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.footer-col li { margin-bottom: 10px; font-size: .9rem; }
.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a {
    width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--footer-border);
    display: flex; align-items: center; justify-content: center;
}
.footer-social svg { width: 16px; height: 16px; }
.footer-bottom { border-top: 1px solid var(--footer-border); padding-top: 24px; font-size: .82rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* ---------- Blog / Project detail ---------- */
.detail-header { padding: calc(var(--header-h) + 56px) 0 40px; text-align: center; }
.detail-meta { display: flex; justify-content: center; gap: 16px; color: var(--text-muted); font-size: .85rem; margin-bottom: 18px; }
.detail-cover { max-width: 900px; margin: 0 auto 48px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.prose { max-width: 760px; margin: 0 auto; font-size: 1.05rem; }
.prose h2 { margin-top: 1.6em; }
.prose img { border-radius: var(--radius-sm); margin: 1.5em 0; }
.prose a { color: var(--accent); text-decoration: underline; }
.prose blockquote { border-left: 3px solid var(--accent); padding-left: 20px; font-style: italic; color: var(--text-muted); }

/* ---------- Utilities ---------- */
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.fade-up { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.in-view { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .hero .container, .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .about-photo { max-width: 340px; margin: 0 auto; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
    .nav-desktop { position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
        background: var(--bg); flex-direction: column; justify-content: flex-start;
        padding: 40px 24px; gap: 24px; transform: translateX(100%); transition: transform .3s ease;
    }
    .nav-desktop.is-open { transform: translateX(0); }
    .nav-desktop a { font-size: 1.1rem; }
    .nav-toggle { display: flex; }
    .card-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .mini-stats { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-stats { gap: 22px; }
}