@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0a0f;
    --bg2: #111118;
    --bg3: #1a1a24;
    --surface: #16161f;
    --surface2: #1e1e2a;
    --border: rgba(255,255,255,0.07);
    --border-bright: rgba(255,255,255,0.15);
    --text: #f0eee8;
    --text-muted: #7a7a8c;
    --text-dim: #4a4a5c;
    --accent: #b4f03a;
    --accent-dark: #8fc42c;
    --accent-glow: rgba(180, 240, 58, 0.15);
    --accent2: #6b3aff;
    --accent2-glow: rgba(107, 58, 255, 0.15);
    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --radius: 4px;
    --radius-lg: 12px;
    --nav-bg: rgba(10, 10, 15, 0.95);
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

body.light {
    --bg: #f5f4ef;
    --bg2: #edece7;
    --bg3: #e4e3de;
    --surface: #ffffff;
    --surface2: #f0efe9;
    --border: rgba(0,0,0,0.08);
    --border-bright: rgba(0,0,0,0.15);
    --text: #0f0f18;
    --text-muted: #5a5a6e;
    --text-dim: #9a9aac;
    --accent: #4a8c00;
    --accent-dark: #3a7000;
    --accent-glow: rgba(74, 140, 0, 0.1);
    --ticker-bg: #0f0f18;
    --ticker-text: #f0eee8;
        --nav-bg: rgba(245, 244, 239, 0.95);
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* ---- NOISE OVERLAY ---- */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 1000;
}

/* ---- THEME TOGGLE ---- */
.theme-toggle {
    cursor: pointer;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 8px 14px;
    border-radius: 100px;
    display: flex;
    gap: 10px;
    align-items: center;
    transition: border-color 0.3s;
    z-index: 502;
}

.theme-toggle:hover {
    border-color: var(--border-bright);
}

.theme-toggle i {
    font-size: 0.9rem;
    transition: color 0.3s, opacity 0.3s;
}

.theme-toggle .fa-sun { color: #f59e0b; }
.theme-toggle .fa-moon { color: #a78bfa; }

/* Desktop'ta sabit konum */
@media (min-width: 769px) {
    .theme-toggle {
        position: fixed;
        top: 24px;
        right: 24px;
    }
}

/* ---- NAVBAR ---- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 400;
    padding: 20px 0;
    transition: background 0.3s, border-color 0.3s;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

body.light .navbar.scrolled {
    background: rgba(245, 244, 239, 0.92);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.02em;
    position: relative;
}

.logo a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
}

.nav-links {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* ---- BUTTONS ---- */
.btn {
    padding: 0.8rem 1.75rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #0a0a0f;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border-color: var(--border-bright);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* CV İndir butonu - diğer butonlarla aynı stil */
.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius);
    padding: 0.8rem 1.75rem;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.25s ease;
    cursor: pointer;
    border-color: var(--border-bright);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-outline i {
    font-size: 0.8rem;
}

/* ========== MOBILE NAVBAR DÜZELTMELERİ ========== */

/* Hamburger buton - her zaman görünür */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    z-index: 501;
    position: relative;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s ease;
    display: block;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile menü - full screen overlay */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg);
        backdrop-filter: blur(0px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
        z-index: 500;
        margin: 0;
        padding: 2rem;
        list-style: none;
    }
    
    .nav-links.active {
        transform: translateX(0);
    }
    
    .nav-links li {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }
    
    .nav-links.active li {
        opacity: 1;
        transform: translateY(0);
    }
    
    .nav-links.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.active li:nth-child(2) { transition-delay: 0.2s; }
    .nav-links.active li:nth-child(3) { transition-delay: 0.3s; }
    .nav-links.active li:nth-child(4) { transition-delay: 0.4s; }
    
    .nav-links a {
        font-size: 1.3rem;
        font-weight: 600;
        letter-spacing: 0.05em;
    }
    
    /* Sayfa içeriği menü açıkken kaydırmayı engelle */
    body.menu-open {
        overflow: hidden;
    }
}

/* Desktop'ta hamburger gizli */
@media (min-width: 769px) {
    .hamburger {
        display: none !important;
    }
    
    .nav-links {
        display: flex !important;
        position: static;
        transform: none;
        flex-direction: row;
        height: auto;
        background: transparent;
        padding: 0;
        gap: 3rem;
    }
    
    .nav-links li {
        opacity: 1;
        transform: none;
    }
    
    /* Desktop'ta hero yüksekliği normal */
    .hero {
        min-height: calc(100vh - 80px);
    }
}

/* ---- CONTAINER ---- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
}

@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }
}

/* ---- HERO ---- */
.hero {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(107, 58, 255, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(180, 240, 58, 0.07) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 6rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
        padding: 0 1.5rem;
    }
    .hero-image { margin: 0 auto; max-width: 200px; }
    .hero-buttons { justify-content: center; }
    .hero-tag { justify-content: center; }
}

.hero-image {
    position: relative;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: var(--surface);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

/* Gradient overlay (eski görsel efekt) */
.image-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-glow), var(--accent2-glow));
    opacity: 0.3;
    pointer-events: none;
    z-index: 2;
}

/* Fotoğraf stili */
.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    position: relative;
    z-index: 1;
}

/* Corner decorations (köşe süslemeleri) */
.image-placeholder::after {
    content: '';
    position: absolute;
    top: 10px;
    right: 10px;
    width: 20px;
    height: 20px;
    border-top: 1px solid var(--accent);
    border-right: 1px solid var(--accent);
    z-index: 3;
    pointer-events: none;
}

/* Placeholder ikon ve yazıları gizle (artık fotoğraf kullanılıyor) */
.image-placeholder i,
.image-placeholder span {
    display: none;
}

.hero-badge {
    position: absolute;
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #0a0a0f;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 100px;
    white-space: nowrap;
}

.hero-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 1.5rem;
}

.hero-tag-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
    50% { box-shadow: 0 0 0 8px transparent; }
}

.hero-tag span {
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-family: var(--font-display);
}

.hero-content h1 {
    font-family: var(--font-display);
    font-size: clamp(3rem, 4vw, 5rem);
    font-weight: 800;
    line-height: 1.0;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero-content h1 .accent-text {
    color: var(--accent);
    display: block;
}

.hero-title {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.01em;
    max-width: 520px;
    line-height: 1.7;
}

.hero-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hero-meta-item span:first-child {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
}

.hero-meta-item span:last-child {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero-buttons {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ---- BUTTONS ---- */
.btn {
    padding: 0.8rem 1.75rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #0a0a0f;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border-color: var(--border-bright);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ---- TICKER ---- */
.ticker-wrapper {
    width: 100%;
    overflow: hidden;
    background: var(--accent);
    padding: 14px 0;
    position: relative;
}

.ticker-track {
    display: inline-flex;
    gap: 0;
    white-space: nowrap;
    animation: ticker-scroll 30s linear infinite;
}

.ticker-track span {
    color: #0a0a0f;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0 2.5rem;
    position: relative;
}

.ticker-track span::before {
    content: '◆';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.4rem;
}

@keyframes ticker-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ---- PAGE HEADER ---- */
.page-header {
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.page-header::before {
    content: attr(data-title);
    position: absolute;
    top: 50%;
    left: 3rem;
    transform: translateY(-50%);
    font-family: var(--font-display);
    font-size: clamp(5rem, 15vw, 12rem);
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255,255,255,0.04);
    white-space: nowrap;
    pointer-events: none;
    letter-spacing: -0.05em;
    line-height: 1;
    z-index: 0;
}

body.light .page-header::before {
    -webkit-text-stroke: 1px rgba(0,0,0,0.05);
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-header-label::before {
    content: '';
    display: inline-block;
    width: 30px;
    height: 1px;
    background: var(--accent);
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.0;
    margin-bottom: 1rem;
}

.page-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 500px;
    font-weight: 300;
}

/* ---- ABOUT PAGE ---- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5px;
    background: var(--border);
    border: 1px solid var(--border);
    overflow: hidden;
}

@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; }
}

.about-card {
    background: var(--bg);
    padding: 3rem;
    transition: background 0.3s;
    position: relative;
}

body.light .about-card { background: var(--surface); }

.about-card:hover {
    background: var(--surface);
}

body.light .about-card:hover { background: var(--bg2); }

.about-card.full-width {
    grid-column: 1 / -1;
}

.about-card-label {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.about-card-label i { font-size: 0.8rem; }

.about-card h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.about-item h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.sub {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.sub-note {
    font-size: 0.8rem;
    color: var(--text-dim);
    font-style: italic;
}

.courses {
    margin-top: 1.5rem;
}

.courses h4 {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.course-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.course-list span {
    background: var(--surface2);
    border: 1px solid var(--border);
    padding: 4px 12px;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    transition: all 0.2s;
}

.course-list span:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

@media (max-width: 600px) {
    .skills-grid { grid-template-columns: 1fr; }
}

.skill-cat h3 {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.skill-cat ul { list-style: none; }

.skill-cat li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: color 0.2s;
}

.skill-cat li:hover { color: var(--text); }

.skill-cat li::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.cert-list { list-style: none; }

.cert-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.cert-list li::before {
    content: '↗';
    color: var(--accent);
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.soft-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.soft-skills span {
    border: 1px solid var(--border-bright);
    padding: 0.5rem 1.25rem;
    font-size: 0.82rem;
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: 0.05em;
    transition: all 0.2s;
    color: var(--text-muted);
}

.soft-skills span:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

/* ---- PROJECTS PAGE ---- */
.projects-section {
    padding: 5rem 0;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border);
    padding: 0.5rem 1.25rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--accent);
    color: #0a0a0f;
    border-color: var(--accent);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
}

@media (max-width: 500px) {
    .projects-grid { grid-template-columns: 1fr; }
}

.project-card {
    background: var(--bg);
    overflow: hidden;
    transition: background 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
}

body.light .project-card { background: var(--surface); }

.project-card:hover { background: var(--surface); }
body.light .project-card:hover { background: var(--bg2); }

.project-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: var(--surface2);
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;  /* cover yerine contain - fotoğrafın tamamını gösterir */
    object-position: center;
    background: var(--bg2);
    filter: grayscale(30%);
    transition: filter 0.5s, transform 0.5s;
}

.project-card:hover .project-img img {
    filter: grayscale(0%);
    transform: scale(1.03);
}

.project-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--bg) 0%, transparent 60%);
    pointer-events: none;
}

.project-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-family: var(--font-display);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--accent);
    background: rgba(10,10,15,0.8);
    padding: 4px 10px;
    border: 1px solid rgba(180, 240, 58, 0.3);
}

.project-info {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.project-info h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
}

.project-cat {
    font-size: 0.75rem;
    color: var(--accent);
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.project-desc {
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    font-size: 0.875rem;
    line-height: 1.65;
    flex: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.project-tech span {
    background: var(--surface2);
    border: 1px solid var(--border);
    padding: 2px 10px;
    font-size: 0.7rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.btn-detail {
    color: var(--text-muted);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.btn-detail:hover {
    color: var(--accent);
    gap: 1rem;
}

/* ---- CONTACT PAGE ---- */
.contact-section {
    padding: 5rem 0;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
}

.contact-card {
    background: var(--bg);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    transition: background 0.3s;
    position: relative;
    overflow: hidden;
}

body.light .contact-card { background: var(--surface); }

.contact-card:hover { background: var(--surface); }
body.light .contact-card:hover { background: var(--bg2); }

.contact-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.4s ease;
}

.contact-card:hover::after { width: 100%; }

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--surface2);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    transition: all 0.3s;
}

.contact-card:hover .contact-icon {
    background: var(--accent-glow);
    border-color: var(--accent);
}

.contact-icon i {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: color 0.3s;
}

.contact-card:hover .contact-icon i {
    color: var(--accent);
}

.contact-card h3 {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
}

.contact-card a {
    color: var(--text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
    word-break: break-all;
}

.contact-card:hover a { color: var(--accent); }

.contact-note {
    font-size: 0.78rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
}

/* ---- PROJECT DETAIL ---- */
.project-detail-section {
    padding: 5rem 0;
}

.project-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

@media (max-width: 900px) {
    .project-detail-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

.project-detail-image {
    position: sticky;
    top: 100px;
}

.project-detail-image img {
    width: 100%;
    border: 1px solid var(--border);
    display: block;
}

.project-detail-content h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.project-detail-content h3 {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin: 2rem 0 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.project-detail-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    white-space: pre-line;
}

.detail-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: var(--surface2);
    border: 1px solid var(--border);
    padding: 6px 14px;
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: all 0.2s;
}

.tech-tag:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.project-links { margin-top: 2.5rem; }

/* ---- FOOTER ---- */
.footer {
    border-top: 1px solid var(--border);
    padding: 3rem 0;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 600px) {
    .footer-container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
        padding: 0 1.5rem;
    }
}

.footer-social {
    display: flex;
    gap: 1.25rem;
}

.footer-social a {
    color: var(--text-dim);
    font-size: 1rem;
    transition: color 0.2s;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.footer-social a:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.footer-copyright {
    color: var(--text-dim);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent);
    color: #0a0a0f;
    border: none;
    width: 44px;
    height: 44px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 99;
    font-size: 0.8rem;
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-3px);
    background: var(--accent-dark);
}

/* ---- ANIMATIONS ---- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========== MOBİL NAVBAR DÜZENİ ========== */
@media (max-width: 768px) {
    .nav-container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.25rem;
        padding: 0 1rem;
    }
    
    .logo {
        order: 1;
        flex-shrink: 0;
    }
    
    .logo a {
        font-size: 1rem;
    }
    
    /* KISA DARK/LIGHT BUTONU */
    .theme-toggle {
        position: static !important;
        order: 2;
        margin: 0 auto;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 30px;
        display: flex;
        width: auto;
        min-width: 30px;
        max-width: 65px;
    }
    
    .theme-toggle i {
        font-size: 15px !important;
        margin: 0;
    }
    
    .hamburger {
        position: static !important;
        order: 3;
        display: flex;
        flex-shrink: 0;
        padding: 4px;
    }
    
    .hamburger span {
        width: 18px;
        height: 1.5px;
        margin: 2px 0;
    }
    
    .navbar {
        padding: 8px 0;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 400;
        margin: 0;
        padding: 2rem;
    }
    
    .nav-links.active {
        transform: translateX(0);
    }
    
    .nav-links a {
        font-size: 1.3rem;
    }
}

/* ========== KESİN ÇALIŞAN BUTON STİLLERİ ========== */
.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    border-radius: 4px;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #0a0a0f;
    border: 1px solid var(--accent);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-bright);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* Özgeçmiş butonu - çerçeveli */
.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border-bright);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-outline i {
    font-size: 0.85rem;
}

/* ========== SERTİFİKALAR GRİD GÖRÜNÜMÜ ========== */
.certificates-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: flex-start;
    margin-top: 1rem;
}

.certificate-item {
    flex: 1;
    min-width: 150px;
    max-width: 200px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    text-align: center;
}

.certificate-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.certificate-image {
    width: 100%;
    aspect-ratio: 1 / 0.7;
    overflow: hidden;
    background: var(--bg);
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.3s ease;
}

.certificate-item:hover .certificate-image img {
    transform: scale(1.05);
}

.certificate-title {
    padding: 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    line-height: 1.4;
    border-top: 1px solid var(--border);
    background: var(--surface);
}

/* Mobil görünüm */
@media (max-width: 768px) {
    .certificates-grid {
        justify-content: center;
        gap: 1rem;
    }
    
    .certificate-item {
        min-width: 130px;
        max-width: 160px;
    }
    
    .certificate-title {
        font-size: 0.65rem;
        padding: 0.5rem;
    }
}

/* ========== PROJE DETAY SLİDER ========== */
.slider-container {
    position: relative;
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
}

.slider-main {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
}

.slider-main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg2);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.slider-btn:hover {
    background: var(--accent);
    color: #0a0a0f;
}

.slider-btn.prev {
    left: 16px;
}

.slider-btn.next {
    right: 16px;
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 12px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-dim);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot:hover {
    background: var(--accent);
}

.dot.active {
    width: 24px;
    border-radius: 4px;
    background: var(--accent);
}

.slider-counter {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-family: monospace;
    color: white;
    z-index: 10;
}

/* Mobil uyum */
@media (max-width: 768px) {
    .slider-btn {
        width: 32px;
        height: 32px;
    }
    
    .slider-btn i {
        font-size: 0.8rem;
    }
    
    .dot {
        width: 6px;
        height: 6px;
    }
    
    .dot.active {
        width: 20px;
    }
}

/* Video player için ek stiller */
.slider-main video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: var(--bg2);
    border-radius: var(--radius-lg);
}

.slider-main video:focus {
    outline: none;
}

/* Video kontrolleri için dark mode uyumu */
video::-webkit-media-controls-panel {
    background-color: rgba(0,0,0,0.7);
}

video::-webkit-media-controls-play-button,
video::-webkit-media-controls-timeline,
video::-webkit-media-controls-current-time-display,
video::-webkit-media-controls-time-remaining-display,
video::-webkit-media-controls-mute-button {
    filter: invert(1);
}

/* ========== MOBİL KAYDIRMA SORUNU KESİN ÇÖZÜM ========== */
html, body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

body {
    overflow-y: auto !important;
    height: auto !important;
    min-height: 100vh;
}

/* Mobilde hero section'ın yüksekliğini düzelt */
@media (max-width: 768px) {
    html, body {
        height: auto !important;
        overflow-y: auto !important;
    }
    
    .hero {
        min-height: auto !important;
        height: auto !important;
        padding: 2rem 0 4rem;
        overflow-y: visible;
    }
    
    .hero-container {
        height: auto;
        min-height: auto;
    }
    
    main {
        overflow-y: visible;
        height: auto;
        flex: 1;
    }
    
    /* Scroll butonunu mobilde daha küçük yap */
    .scroll-top {
        width: 36px;
        height: 36px;
        bottom: 1rem;
        right: 1rem;
    }
}