/* Byt Dokuma — Elite kurumsal mimari */
:root {
    --byt-navy: #0A1220;
    --byt-navy-light: #141E32;
    --byt-navy-soft: #1C2840;
    --byt-glass: #2B4A6E;
    --byt-stone: #E8E4DE;
    --byt-stone-dark: #D4CFC6;
    --byt-gold: #C9A962;
    --byt-gold-light: #E2C992;
    --byt-gold-muted: #9A8458;
    --byt-gold-gradient: linear-gradient(135deg, #E2C992 0%, #C9A962 50%, #A8895C 100%);
    --byt-bg: #FAF9F7;
    --byt-bg-alt: #F3F1ED;
    --byt-white: #FFFFFF;
    --byt-text: #141414;
    --byt-text-muted: #6B6560;
    --byt-border: #E8E4DE;
    --byt-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
    --byt-sans: 'Outfit', 'Inter', 'Segoe UI', system-ui, sans-serif;
    --byt-container: 1240px;
    --byt-section-pad: 6rem;
    --byt-header-h: 122px;
    --byt-header-h-compact: 72px;
    --byt-shadow-sm: 0 2px 12px rgba(10, 18, 32, 0.04);
    --byt-shadow-md: 0 8px 32px rgba(10, 18, 32, 0.08);
    --byt-shadow-lg: 0 20px 60px rgba(10, 18, 32, 0.12);
    --byt-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--byt-sans);
    font-size: 15px;
    line-height: 1.65;
    color: var(--byt-text);
    background: var(--byt-white);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--byt-serif);
    font-weight: 500;
    line-height: 1.2;
    margin: 0 0 1rem;
}

p { margin: 0 0 1rem; }

a { color: inherit; text-decoration: none; }

img { max-width: 100%; height: auto; display: block; }

.byt-container {
    max-width: var(--byt-container);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ── Header — kayan / overlay ── */
.byt-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    transform: translateY(0);
    transition: transform 0.45s var(--byt-ease), background 0.35s var(--byt-ease),
                box-shadow 0.35s var(--byt-ease), border-color 0.35s;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(232, 228, 222, 0.8);
}

.byt-header--hidden {
    transform: translateY(-100%);
}

.byt-header--overlay {
    background: linear-gradient(180deg, rgba(10, 18, 32, 0.72) 0%, rgba(10, 18, 32, 0.15) 70%, transparent 100%);
    backdrop-filter: none;
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.byt-header--overlay.byt-header--scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    border-bottom-color: var(--byt-border);
    box-shadow: var(--byt-shadow-md);
}

.byt-header--overlay:not(.byt-header--scrolled) .byt-nav__link,
.byt-header--overlay:not(.byt-header--scrolled) .byt-header__phone,
.byt-header--overlay:not(.byt-header--scrolled) .byt-nav-toggle {
    color: var(--byt-white);
}

.byt-header--overlay:not(.byt-header--scrolled) .byt-header__top {
    background: transparent;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.byt-header--overlay:not(.byt-header--scrolled) .byt-header__top a,
.byt-header--overlay:not(.byt-header--scrolled) .byt-header__top span {
    color: rgba(255, 255, 255, 0.8);
}

.byt-header--compact .byt-header__top {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    padding: 0;
    border: none;
}

.byt-header--compact .byt-header__inner {
    height: var(--byt-header-h-compact);
}

.byt-no-hero .byt-main {
    padding-top: var(--byt-header-h);
}

.byt-header--transparent {
    position: absolute;
    width: 100%;
    background: transparent;
    border-bottom-color: rgba(255,255,255,0.15);
}

.byt-header--transparent .byt-logo,
.byt-header--transparent .byt-nav__link,
.byt-header--transparent .byt-header__phone {
    color: var(--byt-white);
}

.byt-header__top {
    background: var(--byt-navy);
    color: rgba(255,255,255,0.85);
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    max-height: 40px;
    opacity: 1;
    overflow: hidden;
    transition: max-height 0.35s var(--byt-ease), opacity 0.35s;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.byt-header__top-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 38px;
    gap: 1rem;
}

.byt-header__top-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.byt-header__link-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.byt-header__phone {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.byt-header__top a {
    color: rgba(255,255,255,0.85);
    transition: color 0.2s;
}

.byt-header__top a:hover { color: var(--byt-gold); }

.byt-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 84px;
    gap: 1rem;
    position: relative;
}

.byt-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    line-height: 0;
}

.byt-logo__img {
    display: block;
    height: 56px;
    width: auto;
    object-fit: contain;
    transition: opacity 0.3s var(--byt-ease);
}

.byt-logo:hover .byt-logo__img {
    opacity: 0.88;
}

.byt-header--compact .byt-logo__img {
    height: 48px;
}

.byt-logo--footer .byt-logo__img {
    height: 80px;
}

.byt-header--overlay:not(.byt-header--scrolled) .byt-logo__img {
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
}

.byt-nav {
    display: flex;
    gap: 1.75rem;
    justify-content: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.byt-nav__link {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--byt-text);
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s, color 0.2s;
}

.byt-nav__link:hover,
.byt-nav__link.active {
    border-bottom-color: var(--byt-gold);
    color: var(--byt-navy);
}

.byt-header__actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: flex-end;
}

.byt-header__phone {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--byt-navy);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.byt-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--byt-navy);
}

.byt-nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: currentColor;
}

/* ── Buttons ── */
.byt-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    font-family: var(--byt-sans);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: opacity 0.2s, background 0.2s, transform 0.15s;
}

.byt-btn:hover { opacity: 0.92; transform: translateY(-1px); }

.byt-btn--primary {
    background: var(--byt-navy);
    color: var(--byt-white);
}

.byt-btn--secondary {
    background: var(--byt-white);
    color: var(--byt-navy);
    border: 1px solid var(--byt-navy);
}

.byt-btn--gold {
    background: var(--byt-gold-gradient);
    color: var(--byt-navy);
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(201, 169, 98, 0.35);
}

.byt-btn--gold:hover {
    box-shadow: 0 6px 24px rgba(201, 169, 98, 0.45);
}

.byt-btn--ghost {
    background: transparent;
    color: var(--byt-white);
    border: 1px solid var(--byt-white);
}

.byt-link {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-bottom: 1px solid currentColor;
    padding-bottom: 2px;
}

.byt-link:hover { opacity: 0.75; }

.byt-arrow::after {
    content: '\2192';
    margin-left: 0.25rem;
}

/* ── Labels ── */
.byt-label {
    font-family: var(--byt-sans);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--byt-text-muted);
    margin-bottom: 0.75rem;
}

.byt-label--light { color: rgba(255,255,255,0.7); }
.byt-label--gold { color: var(--byt-gold-muted); }

/* ── Hero ── */
.byt-hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    color: var(--byt-white);
}

.byt-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(15,26,46,0.82) 0%, rgba(15,26,46,0.45) 55%, rgba(15,26,46,0.15) 100%);
}

.byt-hero__content {
    position: relative;
    z-index: 1;
    max-width: 580px;
    padding: 9rem 0 5rem;
}

.byt-hero h1 {
    font-size: clamp(2.5rem, 5.5vw, 3.75rem);
    margin-bottom: 1.25rem;
    color: inherit;
    font-weight: 400;
}

.byt-hero__sub {
    font-size: 1.05rem;
    line-height: 1.75;
    opacity: 0.92;
    margin-bottom: 2rem;
    max-width: 480px;
}

.byt-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.byt-hero__stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.2);
    flex-wrap: wrap;
}

.byt-hero__stat strong {
    display: block;
    font-family: var(--byt-serif);
    font-size: 2rem;
    font-weight: 500;
    color: var(--byt-gold);
    line-height: 1;
    margin-bottom: 0.35rem;
}

.byt-hero__stat span {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.8;
}

/* ── Sections ── */
.byt-section {
    padding: var(--byt-section-pad) 0;
}

.byt-section--bg { background: var(--byt-bg); }
.byt-section--gray { background: var(--byt-bg-alt); }
.byt-section--navy { background: var(--byt-navy); color: var(--byt-white); }

.byt-section__header { margin-bottom: 3rem; }
.byt-section__header--center { text-align: center; max-width: 640px; margin-left: auto; margin-right: auto; }

.byt-section__header h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

.byt-section__header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 2rem;
    flex-wrap: wrap;
}

/* ── Product grid ── */
.byt-products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.byt-product-card {
    position: relative;
    overflow: hidden;
}

.byt-product-card img {
    aspect-ratio: 4/5;
    object-fit: cover;
    width: 100%;
    transition: transform 0.5s ease;
}

.byt-product-card:hover img { transform: scale(1.04); }

.byt-product-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(15,26,46,0.75) 0%, transparent 55%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.75rem;
    color: var(--byt-white);
}

.byt-product-card__overlay h3 {
    font-family: var(--byt-sans);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.byt-product-card__overlay p {
    font-size: 0.82rem;
    opacity: 0.85;
    margin: 0;
}

/* ── Split ── */
.byt-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.byt-feature-list {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    margin: 2rem 0;
}

.byt-feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.byt-feature-item__icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    color: var(--byt-gold);
}

.byt-feature-item h4 {
    font-family: var(--byt-sans);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.byt-feature-item p {
    font-size: 0.85rem;
    color: var(--byt-text-muted);
    margin: 0;
}

/* ── Dual banner ── */
.byt-dual-banner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 420px;
}

.byt-dual-banner__item {
    position: relative;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
    padding: 3rem;
    color: var(--byt-white);
}

.byt-dual-banner__item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(15,26,46,0.7) 0%, transparent 60%);
}

.byt-dual-banner__content {
    position: relative;
    z-index: 1;
    max-width: 340px;
}

.byt-dual-banner__content h3 {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.byt-dual-banner__content p {
    font-size: 0.88rem;
    opacity: 0.9;
    margin-bottom: 1.25rem;
}

/* ── CTA ── */
.byt-cta {
    background: var(--byt-navy);
    color: var(--byt-white);
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.byt-cta::before {
    content: '';
    position: absolute;
    right: -2%;
    top: 50%;
    transform: translateY(-50%);
    width: 320px;
    height: 320px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 120' fill='none' stroke='rgba(197,165,114,0.12)' stroke-width='0.6'%3E%3Cpath d='M10 10h100v100H10z'/%3E%3Cpath d='M10 30h100M10 50h100M10 70h100M10 90h100M30 10v100M50 10v100M70 10v100M90 10v100'/%3E%3C/svg%3E") center/contain no-repeat;
    pointer-events: none;
}

.byt-cta__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.byt-cta h2 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    color: var(--byt-white);
    margin-bottom: 0.5rem;
}

.byt-cta p {
    font-size: 0.9rem;
    opacity: 0.85;
    margin: 0;
    max-width: 480px;
}

/* ── Cards ── */
.byt-cards-grid {
    display: grid;
    gap: 1.5rem;
}

.byt-cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.byt-cards-grid--4 { grid-template-columns: repeat(4, 1fr); }

.byt-card {
    background: var(--byt-bg-alt);
    padding: 2rem 1.5rem;
    border-radius: 2px;
    border: 1px solid transparent;
    transition: border-color 0.2s;
}

.byt-card:hover { border-color: var(--byt-border); }

.byt-card--white {
    background: var(--byt-white);
    border: 1px solid var(--byt-border);
}

.byt-card__icon {
    width: 32px;
    height: 32px;
    margin-bottom: 1rem;
    color: var(--byt-gold);
}

.byt-card h3, .byt-card h4 {
    font-family: var(--byt-sans);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.byt-card p {
    font-size: 0.85rem;
    color: var(--byt-text-muted);
    margin: 0;
}

/* ── Process steps ── */
.byt-process {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    counter-reset: byt-step;
}

.byt-process__step {
    padding: 2rem 1.5rem;
    border-left: 1px solid var(--byt-border);
    position: relative;
}

.byt-process__step:first-child { border-left: none; }

.byt-process__step::before {
    counter-increment: byt-step;
    content: counter(byt-step, decimal-leading-zero);
    font-family: var(--byt-serif);
    font-size: 2.5rem;
    color: var(--byt-gold);
    opacity: 0.4;
    display: block;
    margin-bottom: 1rem;
    line-height: 1;
}

.byt-process__step h4 {
    font-family: var(--byt-sans);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.byt-process__step p {
    font-size: 0.82rem;
    color: var(--byt-text-muted);
    margin: 0;
}

/* ── Hero inset (inner pages) ── */
.byt-hero-inset {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 70vh;
    align-items: center;
}

.byt-hero-inset__bg {
    background-size: cover;
    background-position: center;
    min-height: 70vh;
    position: relative;
}

.byt-hero-inset__content {
    padding: 4rem;
    max-width: 520px;
}

.byt-hero-inset__thumb {
    position: absolute;
    right: -60px;
    bottom: 60px;
    width: 200px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}

/* ── Contact ── */
.byt-contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
}

.byt-contact-detail {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.byt-contact-detail__icon-wrap {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(201, 169, 98, 0.1);
    border: 1px solid rgba(201, 169, 98, 0.22);
}

.byt-contact-detail__icon {
    flex-shrink: 0;
    color: var(--byt-gold);
}

/* Ortak ikon */
.byt-icon {
    display: block;
    flex-shrink: 0;
}

.byt-icon--gold {
    color: var(--byt-gold);
}

.byt-icon--inline {
    display: inline-block;
    vertical-align: -0.15em;
}

.byt-footer__contact-row {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.byt-footer__col--contact a.byt-footer__contact-row:hover {
    color: var(--byt-gold-light);
}

.byt-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.byt-form-field label {
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    color: var(--byt-text-muted);
}

.byt-form-field input,
.byt-form-field select,
.byt-form-field textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--byt-border);
    background: var(--byt-white);
    font-family: var(--byt-sans);
    font-size: 0.9rem;
    color: var(--byt-text);
    transition: border-color 0.2s;
}

.byt-form-field input:focus,
.byt-form-field select:focus,
.byt-form-field textarea:focus {
    outline: none;
    border-color: var(--byt-gold);
}

.byt-form-field textarea { min-height: 140px; resize: vertical; }
.byt-form-field--full { grid-column: 1 / -1; }

.byt-form-note {
    font-size: 0.78rem;
    color: var(--byt-text-muted);
    margin-top: 1rem;
}

.byt-map {
    position: relative;
    min-height: 400px;
    background: #E8E4DF url('https://images.unsplash.com/photo-1524661135-423995f22d0b?w=1400&q=80') center/cover;
}

.byt-map__card {
    position: absolute;
    left: 10%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--byt-white);
    padding: 2rem;
    max-width: 340px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}

.byt-map__pin {
    position: absolute;
    left: 55%;
    top: 45%;
    color: var(--byt-navy);
}

/* ── Legal / prose ── */
.byt-prose {
    max-width: 760px;
    margin: 0 auto;
}

.byt-prose h2 {
    font-size: 1.5rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.byt-prose h3 {
    font-size: 1.15rem;
    font-family: var(--byt-sans);
    font-weight: 600;
    margin-top: 1.75rem;
}

.byt-prose p, .byt-prose li {
    font-size: 0.92rem;
    color: var(--byt-text-muted);
    line-height: 1.75;
}

.byt-prose ul { padding-left: 1.25rem; }

/* ── Footer ── */
.byt-footer {
    background: var(--byt-navy);
    color: rgba(255,255,255,0.75);
    padding: 3.5rem 0 0;
}

.byt-footer__inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 2rem;
    align-items: start;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.byt-footer .byt-logo {
    color: var(--byt-white);
}

.byt-footer__desc {
    font-size: 0.85rem;
    margin-top: 1rem;
    max-width: 320px;
    line-height: 1.7;
}

.byt-footer__col {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.byt-footer__col-title {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--byt-gold);
    margin-bottom: 0.5rem;
}

.byt-footer__col a {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.65);
    transition: color 0.2s;
}

.byt-footer__col a:hover { color: var(--byt-white); }

.byt-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.45);
    flex-wrap: wrap;
    gap: 1rem;
}

.byt-footer__legal {
    display: flex;
    gap: 1.5rem;
}

.byt-footer__legal a {
    color: rgba(255,255,255,0.45);
}

.byt-footer__legal a:hover { color: var(--byt-gold); }

/* ── Responsive ── */
@media (max-width: 1024px) {
    .byt-products-grid { grid-template-columns: repeat(2, 1fr); }
    .byt-cards-grid--4 { grid-template-columns: repeat(2, 1fr); }
    .byt-process { grid-template-columns: repeat(2, 1fr); }
    .byt-process__step:nth-child(odd) { border-left: none; }
    .byt-hero-inset { grid-template-columns: 1fr; }
    .byt-hero-inset__bg { min-height: 40vh; }
    .byt-hero-inset__thumb { display: none; }
}

@media (max-width: 768px) {
    :root { --byt-section-pad: 3rem; }

    .byt-header__top { display: none; }

    .byt-header__inner { flex-wrap: wrap; height: auto; padding: 0.75rem 0; }

    .byt-nav {
        display: none;
        position: static;
        transform: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        border-top: 1px solid var(--byt-border);
    }

    .byt-nav--open { display: flex; }

    .byt-nav__link { padding: 0.75rem 0; }

    .byt-nav-toggle { display: flex; }

    .byt-header__phone { display: none; }

    .byt-split,
    .byt-dual-banner,
    .byt-contact-grid,
    .byt-footer__inner {
        grid-template-columns: 1fr;
    }

    .byt-products-grid,
    .byt-cards-grid--3,
    .byt-process {
        grid-template-columns: 1fr;
    }

    .byt-process__step { border-left: none; border-top: 1px solid var(--byt-border); padding-top: 1.5rem; }

    .byt-hero { min-height: 75vh; }
    .byt-hero__content { padding: 7rem 0 3rem; }
    .byt-hero__stats { gap: 1.5rem; }

    .byt-form-grid { grid-template-columns: 1fr; }

    .byt-cta__inner { flex-direction: column; align-items: flex-start; }

    .byt-map__card { position: static; transform: none; margin: 2rem; }

    .byt-header__top .byt-lang { display: none; }
    .byt-header__actions .byt-lang { display: flex; }
}

/* ── Elite extras ── */
.byt-lang {
    display: inline-flex;
    align-items: center;
    gap: 0;
    padding: 2px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
}

.byt-header__inner .byt-lang,
.byt-header__actions .byt-lang {
    border-color: var(--byt-border);
    background: var(--byt-bg);
}

.byt-lang__btn {
    font-family: var(--byt-sans);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    color: var(--byt-text-muted);
    transition: all 0.25s var(--byt-ease);
}

.byt-header__top .byt-lang__btn { color: rgba(255,255,255,0.65); }
.byt-header__top .byt-lang__btn--active {
    background: rgba(201, 169, 98, 0.25);
    color: var(--byt-gold-light);
}

.byt-header__inner .byt-lang__btn--active,
.byt-header__actions .byt-lang__btn--active {
    background: var(--byt-navy);
    color: var(--byt-white);
}

.byt-lang__sep {
    width: 1px;
    height: 12px;
    background: currentColor;
    opacity: 0.2;
}

.byt-ornament {
    display: block;
    width: 48px;
    height: 1px;
    background: var(--byt-gold-gradient);
    margin-bottom: 1rem;
}

.byt-ornament--center { margin-left: auto; margin-right: auto; }

.byt-hero--premium { min-height: 92vh; }

.byt-hero--compact { min-height: 52vh; }

.byt-hero--compact .byt-hero__content { padding: 6rem 0 3.5rem; }

.byt-hero__grain {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 1;
}

.byt-hero--premium::before {
    background: linear-gradient(115deg, rgba(10,18,32,0.88) 0%, rgba(10,18,32,0.55) 45%, rgba(10,18,32,0.2) 100%);
}

.byt-hero__eyebrow {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.byt-hero__stats--glass {
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 4px;
    padding: 1.75rem 2rem;
    display: inline-flex;
}

.byt-hero__stats--inline {
    border-top: none;
    padding-top: 0;
    margin-top: 1.5rem;
}

.byt-hero__stats--inline .byt-hero__stat strong { color: var(--byt-gold); }
.byt-hero__stats--inline .byt-hero__stat span { color: var(--byt-text-muted); }

.byt-heading--light { color: var(--byt-white); }

.byt-heading--error { color: #b54a4a; }

.byt-link--light { color: #fff; border-color: rgba(255,255,255,0.6); }

.byt-products-grid--elite {
    grid-template-columns: repeat(3, 1fr);
    gap: 2.25rem;
}

.byt-product-card--elite {
    background: var(--byt-white);
    border: 1px solid var(--byt-border);
    transition: transform 0.4s var(--byt-ease), box-shadow 0.4s var(--byt-ease);
}

.byt-product-card--elite:hover {
    transform: translateY(-6px);
    box-shadow: var(--byt-shadow-md);
}

.byt-product-card__frame {
    overflow: hidden;
    aspect-ratio: 4/5;
    background: var(--byt-bg-alt);
}

.byt-product-card__frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--byt-ease);
}

.byt-product-card--elite:hover .byt-product-card__frame img {
    transform: scale(1.06);
}

.byt-product-card__body {
    padding: 1.5rem 1.25rem 1.75rem;
}

.byt-product-card__body h3 {
    font-family: var(--byt-sans);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}

.byt-product-card__body p {
    font-size: 0.82rem;
    color: var(--byt-text-muted);
    margin: 0;
    line-height: 1.6;
}

.byt-split__media {
    position: relative;
}

.byt-split__media::before {
    content: '';
    position: absolute;
    inset: -12px -12px 12px 12px;
    border: 1px solid var(--byt-gold);
    opacity: 0.35;
    pointer-events: none;
}

.byt-split__media img {
    width: 100%;
    object-fit: cover;
    min-height: 480px;
    display: block;
}

.byt-card--hover {
    transition: transform 0.35s var(--byt-ease), box-shadow 0.35s var(--byt-ease), border-color 0.35s;
}

.byt-card--hover:hover {
    transform: translateY(-4px);
    box-shadow: var(--byt-shadow-sm);
    border-color: rgba(201, 169, 98, 0.35);
}

.byt-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.byt-tag {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.65rem 1.25rem;
    border: 1px solid var(--byt-border);
    background: var(--byt-white);
    color: var(--byt-navy);
    transition: all 0.25s var(--byt-ease);
}

.byt-tag:hover {
    border-color: var(--byt-gold);
    color: var(--byt-gold-muted);
}

.byt-list {
    margin: 1rem 0 0;
    padding-left: 1.1rem;
    font-size: 0.85rem;
    color: var(--byt-text-muted);
    line-height: 1.8;
}

.byt-contact-form {
    background: var(--byt-white);
    border: 1px solid var(--byt-border);
    padding: 2.5rem;
    box-shadow: var(--byt-shadow-sm);
}

.byt-contact-details { margin-top: 2rem; }

.byt-section--legal { padding-top: 5rem; }

.byt-footer {
    background: linear-gradient(180deg, var(--byt-navy-light) 0%, var(--byt-navy) 100%);
    border-top: 3px solid transparent;
    border-image: var(--byt-gold-gradient) 1;
}

.byt-footer .byt-logo { padding-left: 0; }

.byt-header__actions .byt-lang { display: none; }

@media (min-width: 769px) {
    .byt-header__top .byt-lang { display: inline-flex; }
}

@media (max-width: 1024px) {
    .byt-products-grid--elite { grid-template-columns: repeat(2, 1fr); }
    .byt-who__grid { grid-template-columns: 1fr; }
    .byt-arch { grid-template-columns: 1fr; }
    .byt-arch--reverse .byt-arch__media { order: -1; }
}

/* ── Biz Kimiz — kurumsal mimari ── */
.byt-who {
    padding: var(--byt-section-pad) 0;
    background: var(--byt-bg);
    position: relative;
}

.byt-who::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--byt-gold), transparent);
}

.byt-who__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.byt-who__title {
    font-family: var(--byt-sans);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 300;
    letter-spacing: 0.35em;
    margin-bottom: 1.25rem;
}

.byt-who__lead {
    font-size: 1.02rem;
    line-height: 1.85;
    color: var(--byt-text-muted);
    max-width: 520px;
}

.byt-who__visual {
    position: relative;
}

.byt-who__frame {
    overflow: hidden;
    border: 1px solid var(--byt-border);
    box-shadow: var(--byt-shadow-lg);
}

.byt-who__frame img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}

.byt-who__plate {
    position: absolute;
    bottom: -1.5rem;
    left: -1.5rem;
    background: var(--byt-navy);
    color: var(--byt-white);
    padding: 1.25rem 1.5rem;
    border-left: 3px solid var(--byt-gold);
}

.byt-who__plate span {
    display: block;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.7;
}

.byt-who__plate strong {
    font-family: var(--byt-sans);
    font-size: 0.85rem;
    letter-spacing: 0.25em;
    font-weight: 500;
}

.byt-lines {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    border: 1px solid var(--byt-border);
    background: var(--byt-white);
}

.byt-lines--page {
    grid-template-columns: 1fr;
}

.byt-line-card {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    padding: 2.25rem 2rem;
    border-bottom: 1px solid var(--byt-border);
    border-right: 1px solid var(--byt-border);
    transition: background 0.3s var(--byt-ease);
}

.byt-lines--page .byt-line-card {
    grid-template-columns: 100px 1fr;
    border-right: none;
}

.byt-line-card:nth-child(2n) { border-right: none; }
.byt-line-card:nth-last-child(-n+2) { border-bottom: none; }
.byt-lines--page .byt-line-card:last-child { border-bottom: none; }

.byt-line-card:hover {
    background: var(--byt-bg);
}

.byt-line-card__num {
    font-family: var(--byt-serif);
    font-size: 2.5rem;
    color: var(--byt-gold);
    opacity: 0.45;
    line-height: 1;
}

.byt-line-card__body h3 {
    font-family: var(--byt-sans);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 0.65rem;
}

.byt-line-card__body p {
    font-size: 0.88rem;
    color: var(--byt-text-muted);
    line-height: 1.75;
    margin: 0;
}

/* ── Mimari split bolum ── */
.byt-arch {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    min-height: 520px;
}

.byt-arch--reverse {
    grid-template-columns: 1fr 1.1fr;
}

.byt-arch__media {
    overflow: hidden;
    position: relative;
}

.byt-arch__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 420px;
}

.byt-arch__content {
    display: flex;
    align-items: center;
    background: var(--byt-navy);
    color: var(--byt-white);
    padding: 3rem;
}

.byt-arch__content--stone {
    background: var(--byt-stone);
    color: var(--byt-text);
}

.byt-arch__inner {
    max-width: 440px;
}

.byt-arch__inner h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    margin-bottom: 1rem;
}

.byt-arch__inner p {
    color: rgba(255,255,255,0.82);
    line-height: 1.75;
}

.byt-arch__content--stone .byt-arch__inner p {
    color: var(--byt-text-muted);
}

.byt-section--stone {
    background: var(--byt-stone);
}

.byt-split__media--arch::before {
    inset: 12px -12px -12px 12px;
    border-color: var(--byt-glass);
}

.byt-process--inline {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 2rem;
}

.byt-process--inline .byt-process__step {
    border-left: none;
    border-top: none;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--byt-border);
}

/* ── Hero ekstra ── */
.byt-hero__arch-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--byt-gold-gradient);
    z-index: 2;
}

.byt-hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    width: 28px;
    height: 44px;
    border: 1px solid rgba(255,255,255,0.35);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.byt-hero__scroll span {
    width: 4px;
    height: 8px;
    background: var(--byt-gold);
    border-radius: 2px;
    animation: byt-scroll 1.8s infinite;
}

@keyframes byt-scroll {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.3; }
}

.byt-hero-inset--arch {
    min-height: 75vh;
    grid-template-columns: 1.2fr 1fr;
}

.byt-hero-inset__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(10,18,32,0.15) 0%, rgba(10,18,32,0.55) 100%);
}

.byt-hero-inset--arch .byt-hero-inset__content {
    background: var(--byt-white);
    margin: 3rem;
    padding: 3rem;
    box-shadow: var(--byt-shadow-lg);
    align-self: center;
}

@media (max-width: 768px) {
    .byt-lines { grid-template-columns: 1fr; }
    .byt-line-card { border-right: none !important; }
    .byt-line-card:nth-last-child(-n+2) { border-bottom: 1px solid var(--byt-border); }
    .byt-line-card:last-child { border-bottom: none; }
    .byt-hero-inset--arch { grid-template-columns: 1fr; }
    .byt-hero-inset--arch .byt-hero-inset__content { margin: 1.5rem; padding: 2rem; }
    .byt-who__plate { left: 0; bottom: -1rem; }
    .byt-process--inline { grid-template-columns: 1fr; }
}