:root {
    --bg: #F5F2EB;
    --surface: #EAE6DC;
    --text-primary: #171614;
    --text-secondary: #6B665E;
    --border-subtle: rgba(23, 22, 20, 0.08);
    --font-logo: 'Cabinet Grotesk', 'Syne', -apple-system, sans-serif;
    --font-display: 'Syne', sans-serif;
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

body {
    background-color: var(--bg);
    color: var(--text-primary);
    font-family: var(--font-body);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* 3D WebGL Canvas */
#viewport-3d {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: none;
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 90px;
    padding: 0 8vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: linear-gradient(180deg, rgba(245, 242, 235, 0.88) 0%, rgba(245, 242, 235, 0) 100%);
}

.brand {
    font-family: var(--font-body);
    font-size: 1.05rem;
    letter-spacing: 0.36em;
    text-transform: uppercase;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.brand span {
    font-weight: 300;
    opacity: 0.45;
    margin: 0 2px;
}

.nav-meta {
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 600;
}

main {
    position: relative;
    z-index: 10;
}

section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 8vw;
}

#sec-intro {
    padding-top: 130px;
}

.col {
    max-width: 530px;
}

.meta-tag {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.26em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 22px;
    font-weight: 700;
}

h1, h2 {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 5vw, 4.3rem);
    line-height: 1.06;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    color: var(--text-primary);
}

h1 em, h2 em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    letter-spacing: -0.01em;
    opacity: 0.9;
}

p.lead {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 34px;
}

.editorial-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 32px;
    border-top: 1px solid var(--border-subtle);
    padding-top: 22px;
}

.spec-item h4 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 6px;
}

.spec-item p {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.align-right {
    justify-content: flex-end;
}

.align-center {
    justify-content: center;
    text-align: center;
}

.link-action {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 0.82rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--text-primary);
    transition: opacity 0.3s, transform 0.2s;
}

.link-action:hover {
    opacity: 0.65;
    transform: translateX(4px);
}

footer {
    position: relative;
    z-index: 20;
    background: var(--bg);
    padding: 44px 8vw;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    font-weight: 600;
    color: var(--text-secondary);
}

#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease;
}

#loader.loaded {
    opacity: 0;
    pointer-events: none;
}

.loader-title {
    font-family: var(--font-body);
    font-size: 0.95rem;
    letter-spacing: 0.36em;
    text-transform: uppercase;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Mobil Uyarlamalar */
@media (max-width: 768px) {
    header {
        height: 75px;
        padding: 0 6vw;
    }

    .brand {
        font-size: 0.92rem;
        letter-spacing: 0.26em;
    }

    .nav-meta {
        display: none;
    }

    section {
        min-height: 85vh;
        padding: 60px 6vw;
        justify-content: flex-start !important;
        text-align: left !important;
    }

    #sec-intro {
        padding-top: 110px;
    }

    .col {
        max-width: 100%;
        background: rgba(245, 242, 235, 0.45);
        backdrop-filter: blur(4px);
        border-radius: 12px;
        padding: 20px 0;
    }

    h1, h2 {
        font-size: 2.3rem;
        line-height: 1.15;
    }

    p.lead {
        font-size: 0.95rem;
        line-height: 1.7;
        margin-bottom: 28px;
    }

    .editorial-specs {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    footer {
        padding: 30px 6vw;
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}