/* =========================================================
   ÇALIŞKAN AHŞAP - Main Stylesheet
   Modern, Responsive, SEO-friendly Design
   ========================================================= */

:root {
    --brown-darkest: #2A1810;
    --brown-darker: #3D2817;
    --brown-dark: #5A3A1E;
    --brown: #6B4423;
    --brown-light: #8B6F47;
    --brown-lighter: #B8956A;
    --cream: #F5EFE6;
    --cream-light: #FAF6F0;
    --beige: #E8DCC4;
    --accent: #C8965F;
    --accent-hover: #B07F4A;
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-400: #9CA3AF;
    --gray-600: #4B5563;
    --gray-800: #1F2937;
    --black: #0F0A06;

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --shadow-sm: 0 2px 4px rgba(42, 24, 16, 0.06);
    --shadow-md: 0 6px 20px rgba(42, 24, 16, 0.08);
    --shadow-lg: 0 14px 40px rgba(42, 24, 16, 0.14);
    --shadow-xl: 0 24px 60px rgba(42, 24, 16, 0.20);

    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;

    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

    --header-h: 86px;
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
picture { display: contents; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; color: var(--brown-darkest); }

/* CONTAINER */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* TYPOGRAPHY HELPERS */
.eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
    position: relative;
    padding-left: 50px;
}
.eyebrow::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 36px;
    height: 2px;
    background: var(--accent);
    transform: translateY(-50%);
}
.text-center { text-align: center; }
.text-center .eyebrow { padding-left: 0; }
.text-center .eyebrow::before { display: none; }

.section-title {
    font-size: clamp(1.85rem, 3.5vw, 2.75rem);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.section-lead {
    font-size: 1.05rem;
    color: var(--gray-600);
    max-width: 720px;
    margin: 0 auto 8px;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
}
.btn-primary {
    background: var(--brown);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(107, 68, 35, 0.35);
}
.btn-primary:hover { background: var(--brown-dark); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(107, 68, 35, 0.4); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid rgba(255, 255, 255, 0.7); }
.btn-outline:hover { background: var(--white); color: var(--brown-dark); border-color: var(--white); }
.btn-outline-dark { background: transparent; color: var(--brown); border: 2px solid var(--brown); }
.btn-outline-dark:hover { background: var(--brown); color: var(--white); }
.btn-light { background: var(--white); color: var(--brown-dark); }
.btn-light:hover { background: var(--cream); transform: translateY(-2px); }

/* SECTION */
.section { padding: 100px 0; }
.section-dark { background: var(--brown-darkest); }
.section-dark .section-title,
.section-dark h3 { color: var(--white); }
.section-dark .section-lead { color: rgba(255,255,255,0.7); }

/* TOPBAR */
.topbar { background: var(--brown-darkest); color: rgba(255,255,255,0.8); font-size: 0.83rem; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.topbar-left { display: flex; gap: 24px; flex-wrap: wrap; }
.topbar-link { display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.8); transition: color var(--transition); }
.topbar-link:hover { color: var(--accent); }
.topbar-right { display: flex; gap: 14px; }
.social-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border-radius: 50%;
    background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.8);
    transition: all var(--transition);
}
.social-icon:hover { background: var(--accent); color: var(--white); transform: translateY(-2px); }
@media (max-width: 768px) { .hide-mobile { display: none; } }

/* HEADER */
.header {
    background: var(--white);
    box-shadow: 0 2px 12px rgba(42, 24, 16, 0.06);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: all var(--transition);
}
.header.scrolled { box-shadow: 0 6px 24px rgba(42, 24, 16, 0.12); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }

/* LOGO */
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo-mark {
    width: 46px; height: 46px; border-radius: 10px;
    background: linear-gradient(135deg, var(--brown), var(--brown-dark));
    color: var(--white);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display); font-size: 1.5rem; font-weight: 700;
    box-shadow: 0 4px 14px rgba(107, 68, 35, 0.35);
}
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-text strong { font-family: var(--font-display); font-size: 1.15rem; color: var(--brown-darkest); letter-spacing: 1.5px; font-weight: 700; }
.logo-text small { font-size: 0.72rem; color: var(--accent); letter-spacing: 4px; font-weight: 600; margin-top: 3px; }
.logo-img { height: 50px; width: auto; max-width: 240px; object-fit: contain; display: block; }
.logo-footer .logo-img { max-height: 60px; max-width: 260px; }

/* NAV */
.nav { display: flex; align-items: center; gap: 32px; }
.nav-list { display: flex; gap: 4px; align-items: center; }
.nav-list a {
    display: block;
    padding: 10px 14px;
    color: var(--gray-800);
    font-weight: 500;
    font-size: 0.93rem;
    position: relative;
}
.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform var(--transition);
    transform-origin: center;
}
.nav-list a:hover { color: var(--brown); }
.nav-list a:hover::after,
.nav-list a.active::after { transform: scaleX(1); }
.nav-list a.active { color: var(--brown); }
.nav-cta { padding: 10px 22px; font-size: 0.85rem; }

/* HAMBURGER */
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--brown-darkest); transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* HERO */
.hero { position: relative; height: calc(100vh - var(--header-h) - 48px); min-height: 580px; max-height: 780px; overflow: hidden; }
.hero-slider { position: relative; height: 100%; }
.hero-slide {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    display: flex; align-items: center;
    opacity: 0; visibility: hidden;
    transition: opacity 1.2s ease, visibility 1.2s ease;
}
.hero-slide.active { opacity: 1; visibility: visible; }
.hero-content { color: var(--white); max-width: 820px; padding: 0 24px; }
.hero-eyebrow {
    display: inline-block;
    color: var(--accent);
    font-size: 0.85rem;
    letter-spacing: 5px;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: heroIn 0.8s 0.2s forwards;
}
.hero-title {
    font-size: clamp(2rem, 5.5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    color: var(--white);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    opacity: 0; transform: translateY(30px);
    animation: heroIn 0.8s 0.35s forwards;
}
.hero-subtitle {
    font-size: clamp(1rem, 1.6vw, 1.25rem);
    color: rgba(255,255,255,0.85);
    margin-bottom: 36px;
    max-width: 640px;
    opacity: 0; transform: translateY(30px);
    animation: heroIn 0.8s 0.5s forwards;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; opacity: 0; transform: translateY(30px); animation: heroIn 0.8s 0.65s forwards; }

@keyframes heroIn { to { opacity: 1; transform: translateY(0); } }

/* SLIDER CONTROLS */
.slider-nav {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 52px; height: 52px; border-radius: 50%;
    background: rgba(255,255,255,0.12); backdrop-filter: blur(8px);
    color: var(--white);
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition);
    z-index: 5;
}
.slider-nav:hover { background: var(--accent); transform: translateY(-50%) scale(1.08); }
.slider-prev { left: 28px; }
.slider-next { right: 28px; }
@media (max-width: 768px) { .slider-nav { display: none; } }

.slider-dots { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 5; }
.slider-dots button {
    width: 36px; height: 4px; border-radius: 2px;
    background: rgba(255,255,255,0.4); transition: all var(--transition);
}
.slider-dots button.active { background: var(--accent); width: 56px; }

.scroll-down {
    position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
    width: 28px; height: 46px; border: 2px solid rgba(255,255,255,0.6);
    border-radius: 14px; z-index: 4;
}
.scroll-down span {
    position: absolute; top: 7px; left: 50%; transform: translateX(-50%);
    width: 3px; height: 8px; background: var(--white);
    border-radius: 2px;
    animation: scrollDown 1.6s infinite;
}
@keyframes scrollDown {
    0% { opacity: 1; transform: translate(-50%, 0); }
    50% { opacity: 0.4; transform: translate(-50%, 12px); }
    100% { opacity: 1; transform: translate(-50%, 0); }
}

/* ABOUT */
.about { background: var(--cream-light); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.about-image-wrap { position: relative; }
.about-image {
    height: 540px;
    background-size: cover; background-position: center;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    position: relative;
}
.about-image::after {
    content: '';
    position: absolute;
    top: 24px; left: -24px; right: 24px; bottom: -24px;
    border: 3px solid var(--accent);
    border-radius: var(--radius-lg);
    z-index: -1;
}
.about-badge {
    position: absolute; bottom: -32px; right: -16px;
    background: var(--brown);
    color: var(--white);
    padding: 22px 28px;
    border-radius: var(--radius);
    display: flex; align-items: center; gap: 14px;
    box-shadow: var(--shadow-lg);
}
.about-badge strong { font-family: var(--font-display); font-size: 2.6rem; line-height: 1; color: var(--accent); }
.about-badge span { font-size: 0.85rem; line-height: 1.3; }

.about-content .section-title { margin-bottom: 24px; }
.about-content p { margin-bottom: 18px; color: var(--gray-600); }
.about-features { margin: 28px 0 36px; display: flex; flex-direction: column; gap: 14px; }
.about-features li {
    display: flex; align-items: center; gap: 14px;
    font-weight: 500; color: var(--gray-800);
}
.about-features svg {
    flex-shrink: 0;
    width: 24px; height: 24px; padding: 4px;
    background: var(--accent); color: var(--white);
    border-radius: 50%;
}

/* SERVICES */
.services .section-head { margin-bottom: 64px; }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.service-card {
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 38px 32px;
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--brown), var(--brown-dark));
    opacity: 0;
    transition: opacity var(--transition);
    z-index: -1;
}
.service-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.service-card:hover::before { opacity: 1; }
.service-icon {
    width: 64px; height: 64px;
    background: var(--accent);
    color: var(--white);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 22px;
    transition: all var(--transition);
}
.service-card:hover .service-icon { background: var(--white); color: var(--brown); transform: rotate(-6deg) scale(1.08); }
.service-title { color: var(--white); font-size: 1.3rem; margin-bottom: 12px; }
.service-text { color: rgba(255,255,255,0.7); font-size: 0.95rem; margin-bottom: 22px; }
.service-link {
    display: inline-flex; align-items: center; gap: 8px;
    color: var(--accent); font-weight: 600; font-size: 0.88rem;
    letter-spacing: 1px; text-transform: uppercase;
}
.service-card:hover .service-link { color: var(--white); }
.service-link svg { transition: transform var(--transition); }
.service-card:hover .service-link svg { transform: translateX(4px); }

/* WORKS */
.works { background: var(--white); }
.works .section-head { margin-bottom: 64px; }
.works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.work-card {
    display: block;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    background: var(--white);
    transition: all var(--transition);
    color: var(--gray-800);
}
.work-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.work-image {
    height: 280px;
    background-size: cover; background-position: center;
    position: relative;
    transition: transform 0.6s ease;
}
.work-card:hover .work-image { transform: scale(1.06); }
.work-image::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(42, 24, 16, 0.6));
}
.work-category {
    position: absolute; top: 18px; left: 18px;
    background: var(--accent);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    z-index: 2;
}
.work-gallery-badge {
    position: absolute; top: 18px; right: 18px;
    background: rgba(42, 24, 16, 0.85);
    backdrop-filter: blur(6px);
    color: #fff;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    z-index: 2;
}
.work-info { padding: 22px 24px; }
.work-title { font-size: 1.2rem; color: var(--brown-darkest); margin-bottom: 8px; }
.work-location { display: inline-flex; align-items: center; gap: 6px; font-size: 0.88rem; color: var(--gray-600); }

/* STATS */
.stats-section {
    padding: 90px 0;
    background-size: cover; background-position: center; background-attachment: fixed;
    color: var(--white);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-item { padding: 20px; }
.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.6rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 12px;
}
.stat-label {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.85);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 500;
}

/* REFERENCES */
.references { background: var(--cream-light); }
.references .section-head { margin-bottom: 56px; }
.ref-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
.ref-card {
    background: var(--white);
    padding: 36px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition);
    border: 1px solid var(--gray-200);
}
.ref-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.ref-logo {
    display: block;
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--brown);
    letter-spacing: 1px;
    margin-bottom: 8px;
}
.ref-logo-img {
    display: block;
    max-width: 100%;
    max-height: 60px;
    width: auto;
    margin: 0 auto 10px;
    object-fit: contain;
    filter: grayscale(40%);
    transition: filter var(--transition);
}
.ref-card:hover .ref-logo-img { filter: grayscale(0); }
.ref-name { font-size: 0.82rem; color: var(--gray-600); letter-spacing: 1px; text-transform: uppercase; }

/* CTA */
.cta-section { padding: 80px 0; background: var(--cream); }
.cta-box {
    background: linear-gradient(135deg, var(--brown-dark), var(--brown-darkest));
    border-radius: var(--radius-lg);
    padding: 60px 56px;
    display: grid; grid-template-columns: 1.6fr 1fr; gap: 30px;
    align-items: center;
    color: var(--white);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: '';
    position: absolute; top: -100px; right: -100px;
    width: 320px; height: 320px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.12;
}
.cta-box .eyebrow { color: var(--accent); }
.cta-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--white);
    margin-bottom: 14px;
}
.cta-box p { color: rgba(255,255,255,0.8); }
.cta-actions { display: flex; flex-direction: column; gap: 12px; }

/* FOOTER */
.footer { background: var(--brown-darkest); color: rgba(255,255,255,0.75); padding: 80px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 50px; margin-bottom: 60px; }
.logo-footer { margin-bottom: 20px; }
.logo-footer .logo-text strong { color: var(--white); }
.footer-text { margin-bottom: 22px; font-size: 0.93rem; line-height: 1.8; color: rgba(255,255,255,0.7); }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 38px; height: 38px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.8);
    transition: all var(--transition);
}
.footer-social a:hover { background: var(--accent); color: var(--white); transform: translateY(-3px); }

.footer-title {
    color: var(--white);
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 22px;
    letter-spacing: 0.5px;
    position: relative;
    padding-bottom: 12px;
}
.footer-title::after {
    content: '';
    position: absolute; bottom: 0; left: 0;
    width: 36px; height: 2px;
    background: var(--accent);
}

.footer-links li { margin-bottom: 10px; }
.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 0.93rem;
    transition: all var(--transition);
    display: inline-block;
}
.footer-links a:hover { color: var(--accent); transform: translateX(4px); }

.footer-contact li {
    display: flex; gap: 12px; align-items: flex-start;
    margin-bottom: 14px;
    font-size: 0.93rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.6;
}
.footer-contact svg { color: var(--accent); margin-top: 3px; flex-shrink: 0; }
.footer-contact a:hover { color: var(--accent); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 14px;
    font-size: 0.86rem;
    color: rgba(255,255,255,0.55);
}
.footer-bottom strong { color: var(--white); }
.footer-credits a { color: rgba(255,255,255,0.65); margin: 0 4px; }
.footer-credits a:hover { color: var(--accent); }

/* SCROLL TO TOP */
.to-top {
    position: fixed; bottom: 24px; right: 24px;
    width: 46px; height: 46px; border-radius: 50%;
    background: var(--brown);
    color: var(--white);
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 89;
    opacity: 0; visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition);
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--brown-dark); transform: translateY(-3px); }

/* ============================================================
   IC SAYFALAR (Hakkimizda, Hizmetler, Calismalar vb.)
   ============================================================ */

/* PAGE HEADER (Breadcrumb hero) */
.page-header {
    position: relative;
    padding: 130px 0 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--white);
    text-align: center;
    overflow: hidden;
}
.page-header::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(42, 24, 16, 0.85), rgba(91, 58, 30, 0.78));
}
.page-header .container { position: relative; z-index: 2; }
.page-header h1 {
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.page-header p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.85);
    max-width: 700px;
    margin: 0 auto;
}
.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 22px;
    padding: 8px 18px;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(8px);
    border-radius: 30px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.9);
}
.breadcrumb a { color: rgba(255,255,255,0.85); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span.sep { color: rgba(255,255,255,0.5); }
.breadcrumb span.current { color: var(--accent); font-weight: 600; }

/* HAKKIMIZDA ek bolumler */
.values-section { background: var(--white); }
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.value-card {
    background: var(--cream-light);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition);
    border: 1px solid transparent;
}
.value-card:hover { background: var(--white); border-color: var(--accent); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.value-icon {
    width: 72px; height: 72px;
    margin: 0 auto 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brown), var(--brown-dark));
    color: var(--white);
    display: flex; align-items: center; justify-content: center;
}
.value-card h3 { font-size: 1.3rem; margin-bottom: 14px; color: var(--brown-darkest); }
.value-card p { color: var(--gray-600); font-size: 0.95rem; }

/* TIMELINE */
.timeline { background: var(--cream-light); }
.timeline-wrap {
    position: relative;
    max-width: 880px;
    margin: 0 auto;
    padding: 30px 0;
}
.timeline-wrap::before {
    content: '';
    position: absolute;
    left: 50%; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, transparent, var(--accent) 10%, var(--accent) 90%, transparent);
    transform: translateX(-50%);
}
.timeline-item {
    position: relative;
    width: 50%;
    padding: 24px 50px;
}
.timeline-item:nth-child(odd) { left: 0; text-align: right; }
.timeline-item:nth-child(even) { left: 50%; }
.timeline-item::before {
    content: '';
    position: absolute;
    top: 36px;
    width: 18px; height: 18px;
    background: var(--accent);
    border: 4px solid var(--white);
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--accent);
    z-index: 2;
}
.timeline-item:nth-child(odd)::before { right: -10px; }
.timeline-item:nth-child(even)::before { left: -10px; }
.timeline-box {
    background: var(--white);
    padding: 26px 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}
.timeline-year {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
}
.timeline-box h4 { font-size: 1.15rem; margin-bottom: 6px; color: var(--brown-darkest); }
.timeline-box p { color: var(--gray-600); font-size: 0.92rem; }

/* HIZMETLER detay grid */
.services-detailed-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}
.service-detail-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid var(--gray-200);
}
.service-detail-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.service-detail-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}
.service-detail-image::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.5));
}
.service-detail-body { padding: 32px 30px; }
.service-detail-body h3 {
    font-size: 1.5rem;
    margin-bottom: 14px;
    color: var(--brown-darkest);
}
.service-detail-body p { color: var(--gray-600); margin-bottom: 18px; }
.service-detail-body ul { margin-bottom: 22px; }
.service-detail-body li {
    display: flex; align-items: flex-start;
    gap: 10px;
    padding: 6px 0;
    color: var(--gray-800);
    font-size: 0.93rem;
}
.service-detail-body li::before {
    content: '';
    flex-shrink: 0;
    width: 7px; height: 7px;
    margin-top: 9px;
    background: var(--accent);
    border-radius: 50%;
}

/* CALISMALAR filtre + galeri */
.work-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 48px;
}
.work-filter {
    padding: 10px 22px;
    background: var(--white);
    border: 1.5px solid var(--gray-200);
    border-radius: 30px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gray-600);
    transition: all var(--transition);
    cursor: pointer;
}
.work-filter:hover { color: var(--brown); border-color: var(--brown); }
.work-filter.active { background: var(--brown); color: var(--white); border-color: var(--brown); }

.work-card.hidden { display: none; }

/* REFERANSLAR genis grid */
.ref-large-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 50px;
}
.ref-large-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 50px 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: all var(--transition);
}
.ref-large-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}
.ref-large-logo {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--brown);
    letter-spacing: 1.5px;
    margin-bottom: 14px;
    display: block;
}
.ref-large-img {
    display: block;
    max-width: 100%;
    max-height: 90px;
    width: auto;
    margin: 0 auto 18px;
    object-fit: contain;
    filter: grayscale(50%);
    transition: filter var(--transition);
}
.ref-large-card:hover .ref-large-img { filter: grayscale(0); }
a.ref-large-card { display: block; color: inherit; text-decoration: none; }
.ref-large-name {
    font-size: 0.95rem;
    color: var(--gray-600);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 500;
}

/* ILETISIM */
.contact-section { background: var(--cream-light); }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 50px;
    align-items: start;
}
.contact-info-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 42px 36px;
    box-shadow: var(--shadow-md);
    height: 100%;
}
.contact-info-card h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--brown-darkest);
}
.contact-info-list { margin-bottom: 32px; }
.contact-info-item {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    padding: 18px 0;
    border-bottom: 1px solid var(--gray-100);
}
.contact-info-item:last-child { border-bottom: none; }
.contact-info-icon {
    flex-shrink: 0;
    width: 46px; height: 46px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--brown), var(--brown-dark));
    color: var(--white);
    display: flex; align-items: center; justify-content: center;
}
.contact-info-text strong {
    display: block;
    color: var(--brown-darkest);
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 0.92rem;
}
.contact-info-text span,
.contact-info-text a {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.5;
}
.contact-info-text a:hover { color: var(--accent); }
.contact-social-row {
    display: flex;
    gap: 12px;
    padding-top: 8px;
}
.contact-social-row a {
    width: 42px; height: 42px;
    border-radius: 10px;
    background: var(--cream);
    color: var(--brown);
    display: inline-flex; align-items: center; justify-content: center;
    transition: all var(--transition);
}
.contact-social-row a:hover { background: var(--brown); color: var(--white); transform: translateY(-3px); }

.contact-form-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 42px 40px;
    box-shadow: var(--shadow-md);
}
.contact-form-card h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    color: var(--brown-darkest);
}
.contact-form-card .form-intro {
    color: var(--gray-600);
    margin-bottom: 28px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 18px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--brown-darkest);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--gray-800);
    background: var(--cream-light);
    transition: all var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(200, 150, 95, 0.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-submit {
    width: 100%;
    justify-content: center;
}
.form-status {
    margin-top: 18px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    display: none;
}
.form-status.success { display: block; background: #ECFDF5; color: #065F46; border: 1px solid #A7F3D0; }
.form-status.error   { display: block; background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }

.map-wrap {
    margin-top: 60px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--white);
}
.map-wrap iframe { width: 100%; height: 420px; border: 0; display: block; }

/* WORK DETAY SAYFASI */
.work-detail-grid {
    display: grid;
    grid-template-columns: 1.7fr 1fr;
    gap: 50px;
    align-items: start;
}
.work-detail-content p {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.8;
}
.work-detail-meta {
    background: var(--cream-light);
    padding: 32px 30px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--beige);
}
.work-detail-meta h3 {
    font-size: 1.25rem;
    color: var(--brown-darkest);
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--accent);
}
.work-detail-meta ul {
    list-style: none;
    padding: 0;
}
.work-detail-meta li {
    padding: 14px 0;
    border-bottom: 1px dashed rgba(107, 68, 35, 0.15);
}
.work-detail-meta li:last-child { border-bottom: none; }
.work-detail-meta li small {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 1.5px;
    margin-bottom: 4px;
    font-weight: 600;
}
.work-detail-meta li strong {
    font-size: 1.05rem;
    color: var(--brown-darkest);
    font-family: var(--font-display);
    font-weight: 600;
}

/* GALLERY MOSAIC */
.gallery-mosaic {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.gallery-cell {
    position: relative;
    display: block;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--gray-100);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}
.gallery-cell:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.gallery-cell img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.gallery-cell:hover img { transform: scale(1.08); }
.gallery-cell-caption {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 14px 18px 12px;
    color: #fff;
    font-size: 0.88rem;
    font-weight: 500;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,.75));
    transform: translateY(100%);
    transition: transform var(--transition);
}
.gallery-cell:hover .gallery-cell-caption { transform: translateY(0); }
.gallery-cell-zoom {
    position: absolute;
    top: 14px; right: 14px;
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.95);
    color: var(--brown-darkest);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transform: scale(0.6);
    transition: all var(--transition);
}
.gallery-cell:hover .gallery-cell-zoom { opacity: 1; transform: scale(1); }

/* LIGHTBOX */
.lightbox {
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px 80px;
}
.lightbox.open { display: flex; }
.lightbox-content {
    position: relative;
    max-width: 100%; max-height: 100%;
    text-align: center;
}
.lightbox-content img {
    max-width: 100%;
    max-height: calc(100vh - 140px);
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 20px 80px rgba(0,0,0,0.6);
    animation: lbIn 0.3s ease;
}
@keyframes lbIn { from { opacity: 0; transform: scale(0.96); } to { opacity: 1; transform: scale(1); } }
.lightbox-caption {
    margin-top: 18px;
    color: #fff;
    font-size: 1rem;
    font-weight: 500;
    text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}
.lightbox-counter {
    margin-top: 6px;
    color: rgba(255,255,255,0.6);
    font-size: 0.82rem;
    letter-spacing: 2px;
}
.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    width: 54px; height: 54px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(10px);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    z-index: 2;
}
.lightbox-close { top: 24px; right: 24px; }
.lightbox-prev  { left: 24px;  top: 50%; transform: translateY(-50%); }
.lightbox-next  { right: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { background: var(--accent); transform: scale(1.08) translateY(0); }
.lightbox-prev:hover, .lightbox-next:hover { transform: translateY(-50%) scale(1.08); }

/* RESPONSIVE: ic sayfalar */
@media (max-width: 1024px) {
    .services-detailed-grid { grid-template-columns: 1fr; }
    .ref-large-grid { grid-template-columns: repeat(3, 1fr); }
    .work-detail-grid { grid-template-columns: 1fr; gap: 30px; }
    .gallery-mosaic { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .page-header { padding: 80px 0 60px; }
    .values-grid { grid-template-columns: 1fr; }
    .ref-large-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; gap: 30px; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .contact-form-card, .contact-info-card { padding: 32px 26px; }

    /* Timeline - mobil tek kolon */
    .timeline-wrap::before { left: 18px; }
    .timeline-item {
        width: 100%;
        left: 0 !important;
        text-align: left !important;
        padding: 20px 0 20px 50px;
    }
    .timeline-item::before { left: 9px !important; right: auto !important; }
}

@media (max-width: 768px) {
    .gallery-mosaic { grid-template-columns: 1fr; gap: 12px; }
    .lightbox { padding: 20px; }
    .lightbox-close { top: 14px; right: 14px; width: 44px; height: 44px; }
    .lightbox-prev, .lightbox-next { width: 44px; height: 44px; }
    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
}

@media (max-width: 480px) {
    .ref-large-grid { grid-template-columns: 1fr; }
    .work-filters { gap: 6px; }
    .work-filter { padding: 8px 14px; font-size: 0.8rem; }
}

/* REVEAL ANIMATION */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* RESPONSIVE */
@media (max-width: 1024px) {
    .about-grid { gap: 50px; }
    .services-grid, .works-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    .section { padding: 70px 0; }
    .nav { position: fixed; top: var(--header-h); right: -100%; width: 80%; max-width: 360px; height: calc(100vh - var(--header-h)); background: var(--white); flex-direction: column; align-items: flex-start; padding: 32px 28px; gap: 18px; box-shadow: -10px 0 40px rgba(0,0,0,0.1); transition: right var(--transition); overflow-y: auto; }
    .nav.open { right: 0; }
    .nav-list { flex-direction: column; gap: 0; width: 100%; }
    .nav-list li { width: 100%; border-bottom: 1px solid var(--gray-100); }
    .nav-list a { padding: 14px 0; font-size: 1rem; }
    .nav-list a::after { display: none; }
    .nav-cta { width: 100%; justify-content: center; margin-top: 12px; }
    .hamburger { display: flex; }

    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-image { height: 380px; }
    .about-image::after { display: none; }
    .about-badge { bottom: -22px; right: -8px; padding: 16px 20px; }
    .about-badge strong { font-size: 2rem; }

    .services-grid, .works-grid, .ref-grid { grid-template-columns: 1fr; }
    .ref-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .cta-box { grid-template-columns: 1fr; padding: 40px 28px; text-align: center; }
    .cta-box .eyebrow { padding-left: 0; }
    .cta-box .eyebrow::before { display: none; }
    .cta-actions { flex-direction: row; justify-content: center; flex-wrap: wrap; }

    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .footer-bottom { flex-direction: column; text-align: center; }

    .topbar-inner { justify-content: center; }
    .topbar-left { justify-content: center; }
}

@media (max-width: 480px) {
    .topbar { font-size: 0.78rem; }
    .topbar-left { gap: 14px; }
    .logo-text strong { font-size: 1rem; }
    .logo-text small { font-size: 0.65rem; letter-spacing: 3px; }
    .hero { height: 80vh; min-height: 480px; }
    .btn { padding: 12px 24px; font-size: 0.85rem; }
    .ref-grid { grid-template-columns: 1fr; }
    .to-top { width: 40px; height: 40px; right: 18px; bottom: 18px; }
}
.reveal { opacity: 1 !important; transform: none !important; transition: none !important; }