:root {
    --bg-dark: #05050a;
    --bg-panel: #0e0e16;
    --accent: #d4af37;
    --accent-2: #3a9bd5;
    --accent-glow: rgba(212,175,55,0.3);
    --font-display: 'Cinzel', serif;
    --text-main: #e8ecf0;
    --text-muted: #8a96a8;
    --radius: 16px;
    --container-width: 1200px;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

header {
    padding: 24px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(5, 5, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo span {
    color: var(--accent);
    font-weight: 300;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--accent);
}

.btn-primary {
    background: var(--accent);
    color: #fff !important;
    padding: 10px 24px;
    border-radius: 30px;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.hero {
    padding: 160px 0 100px;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 64px;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-content h1 span {
    background: linear-gradient(90deg, var(--accent), #d4af37);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.btn-main {
    text-decoration: none;
    background: var(--accent);
    color: #fff;
    padding: 16px 32px;
    border-radius: 40px;
    font-weight: 600;
    box-shadow: 0 8px 25px var(--accent-glow);
    transition: 0.3s;
}

.btn-main:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px var(--accent-glow);
}

.btn-outline {
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
    padding: 16px 32px;
    border-radius: 40px;
    font-weight: 600;
    transition: 0.3s;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.glow-sphere {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    z-index: -1;
}

.features {
    padding: 100px 0;
    background: var(--bg-panel);
}

.section-title {
    text-align: center;
    font-size: 40px;
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--bg-dark);
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
}

.feature-card .icon {
    font-size: 40px;
    margin-bottom: 24px;
}

.feature-card h3 {
    margin-bottom: 16px;
    font-size: 24px;
}

.feature-card p {
    color: var(--text-muted);
}

.download-section {
    padding: 100px 0;
}

.download-section h2 {
    font-size: 48px;
    margin-bottom: 16px;
}

.download-section p {
    color: var(--text-muted);
    margin-bottom: 60px;
}

.download-box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.os-card {
    background: var(--bg-panel);
    padding: 40px 24px;
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.os-card.active {
    border-color: var(--accent);
    background: linear-gradient(180deg, var(--bg-panel) 0%, rgba(58, 155, 213, 0.1) 100%);
}

.os-icon {
    font-size: 48px;
}

.os-name {
    font-size: 20px;
    font-weight: 600;
}

.btn-download {
    text-decoration: none;
    color: var(--accent);
    font-weight: 600;
    padding: 8px 16px;
    background: rgba(58, 155, 213, 0.1);
    border-radius: 8px;
    transition: 0.3s;
}

.btn-download:hover {
    background: var(--accent);
    color: #fff;
}

footer {
    padding: 60px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 14px;
}

.socials {
    display: flex;
    gap: 24px;
}

.socials a {
    text-decoration: none;
    color: var(--text-muted);
    transition: 0.3s;
}

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

@media (max-width: 968px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content h1 {
        font-size: 48px;
    }
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-actions {
        justify-content: center;
    }
    .feature-grid {
        grid-template-columns: 1fr;
    }
    .download-box {
        grid-template-columns: 1fr;
    }
}


/* ===== Themes section ===== */
.themes-section {
    padding: 100px 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(58,155,213,0.08) 0%, transparent 60%), var(--bg-dark);
}

.themes-sub {
    text-align: center;
    color: var(--text-muted);
    margin: -40px auto 60px;
    max-width: 560px;
}

.themes-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.theme-card {
    background: var(--bg-panel);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    overflow: hidden;
    transition: 0.3s;
}

.theme-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 50px rgba(58,155,213,0.15);
}

.theme-card img {
    width: 100%;
    display: block;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.theme-info {
    padding: 28px 32px 32px;
}

.theme-info h3 {
    font-size: 26px;
    margin-bottom: 12px;
}

.theme-info p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.theme-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.theme-tags span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--accent);
    background: rgba(58,155,213,0.1);
    border: 1px solid rgba(58,155,213,0.3);
    padding: 5px 12px;
    border-radius: 20px;
}

@media (max-width: 968px) {
    .themes-grid {
        grid-template-columns: 1fr;
    }
}


/* ===== Tınga Klasik tema uyarlaması ===== */
h1, h2, h3, .logo, .os-name, .section-title {
    font-family: var(--font-display);
    letter-spacing: 1px;
}

.logo {
    color: #d4af37;
    letter-spacing: 4px;
}

.hero-content h1 span {
    background: linear-gradient(90deg, #d4af37, #3a9bd5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn-primary,
.btn-main {
    background: linear-gradient(135deg, #d4af37, #a8842a);
    color: #120e06 !important;
    font-weight: 700;
}

.btn-outline {
    border-color: rgba(212,175,55,0.35);
    color: #d4af37;
}

.btn-outline:hover {
    background: rgba(212,175,55,0.08);
}

.feature-card {
    border-color: rgba(212,175,55,0.12);
}

.feature-card:hover {
    border-color: rgba(212,175,55,0.6);
}

.theme-card:hover {
    border-color: rgba(212,175,55,0.6);
    box-shadow: 0 20px 50px rgba(212,175,55,0.12);
}

.theme-tags span {
    color: #d4af37;
    background: rgba(212,175,55,0.08);
    border-color: rgba(212,175,55,0.3);
}

.glow-sphere {
    background: radial-gradient(circle, rgba(212,175,55,0.22) 0%, transparent 70%);
}

/* download: klasik stil */
.os-card {
    border: 1px solid rgba(212,175,55,0.15);
    background: linear-gradient(180deg, #0e0e16, #0b0b12);
}

.os-card.active {
    border-color: rgba(212,175,55,0.6);
    background: linear-gradient(180deg, #12121c 0%, rgba(212,175,55,0.08) 100%);
    box-shadow: 0 0 30px rgba(212,175,55,0.12);
}

.os-glyph {
    font-size: 44px;
    color: #d4af37;
    text-shadow: 0 0 14px rgba(212,175,55,0.5);
    line-height: 1;
}

.os-name {
    font-size: 18px;
    letter-spacing: 3px;
}

.btn-download {
    color: #d4af37;
    background: rgba(212,175,55,0.08);
    border: 1px solid rgba(212,175,55,0.35);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}

.btn-download:hover {
    background: #d4af37;
    color: #120e06;
}

.btn-download.soon {
    opacity: .45;
    pointer-events: none;
}

.socials a:hover,
.nav-links a:hover {
    color: #d4af37;
}