/* =========================
   THEME TOKENS
========================= */
:root {
    --brand: #00E0A4;
    --brandrepinu: #4040B8;
    --brandbongo: #FA5D85;
    /* dark */
    --bg: #0f1115;
    --bg2: #14171c;
    --surface: rgba(255,255,255,.04);
    --surface2: rgba(255,255,255,.07);
    --line: rgba(255,255,255,.11);
    --text: rgba(255,255,255,.92);
    --muted: rgba(255,255,255,.62);
    --radius: 18px;
    --container: 1180px;
    --shadow: 0 24px 80px rgba(0,0,0,.22);
    --h1: clamp(52px, 6.6vw, 118px);
    --h2: clamp(35px, 4.2vw, 66px);
    --h3: clamp(28px, 3.2vw, 44px);
}

[data-theme="light"] {
    --bg: #f5f7f8;
    --bg2: #ffffff;
    --surface: rgba(15,17,21,.04);
    --surface2: rgba(15,17,21,.06);
    --line: rgba(15,17,21,.12);
    --text: rgba(15,17,21,.92);
    --muted: rgba(15,17,21,.62);
    --shadow: 0 18px 60px rgba(15,17,21,.12);
}

/* =========================
   BASE
========================= */
* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth
}

body {
    margin: 0;
    font-family: "Space Grotesk", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--text);
    background: radial-gradient(1200px 600px at 12% 18%, rgba(0,224,164,.11), transparent 55%), radial-gradient(900px 520px at 80% 10%, rgba(0,224,164,.08), transparent 60%), linear-gradient(180deg, var(--bg), var(--bg2));
    letter-spacing: .1px;
}

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

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

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 28px
}

.muted {
    color: var(--muted)
}

.max {
    max-width: 100ch
}

/* skip link */
.skip {
    position: absolute;
    left: -999px;
    top: 10px;
    background: var(--bg2);
    color: var(--text);
    border: 1px solid var(--line);
    padding: 10px 12px;
    border-radius: 12px;
    z-index: 999;
}

    .skip:focus {
        left: 10px
    }

/* =========================
   UI
========================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 14px;
    font-weight: 700;
    border: 1px solid var(--line);
    background: var(--surface);
    transition: transform .15s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
    cursor: pointer;
    user-select: none;
    will-change: transform;
}

    .btn:hover {
        transform: translateY(-1px);
        background: var(--surface2);
        border-color: color-mix(in srgb, var(--line), var(--brand) 28%);
    }

    .btn.primary {
        background: var(--brand);
        color: #00110c;
        border-color: transparent;
        box-shadow: 0 18px 60px rgba(0,224,164,.18);
    }

        .btn.primary:hover {
            filter: saturate(1.05)
        }

    .btn.ghost {
        background: transparent
    }

.icon-btn {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    background: var(--surface);
    cursor: pointer;
    transition: transform .15s ease, background .15s ease, border-color .15s ease;
}

    .icon-btn:hover {
        transform: translateY(-1px);
        background: var(--surface2);
        border-color: color-mix(in srgb, var(--line), var(--brand) 28%);
    }

/* =========================
   HEADER
========================= */
.header {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    z-index: 50;
    background: color-mix(in srgb, var(--bg), transparent 35%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color .2s ease, background .2s ease;
}

    .header.scrolled {
        background: color-mix(in srgb, var(--bg), transparent 10%);
        border-bottom: 1px solid var(--line);
    }

.nav {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px
}

.logo {
    height: 37px;
    width: auto
}

/* PNG LOGO FILTER:
   Varsayım: logo PNG siyah.
   Dark: invert -> beyaz.
   Light: normal.
   Eğer logo PNG beyazsa, bu iki kuralı ters çevir.
*/
[data-theme="dark"] .logo {
    filter: brightness(0) invert(1)
}

[data-theme="light"] .logo {
    filter: none
}

[data-theme="light"] .hero {
    background-image: url(bg2.png);
}

[data-theme="dark"] .hero {
    filter: none
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 14px
}

    .nav-links a {
        padding: 10px 10px;
        border-radius: 14px;
        color: var(--muted);
        font-weight: 700;
        transition: background .15s ease, color .15s ease;
    }

        .nav-links a:hover {
            background: var(--surface);
            color: var(--text)
        }

.nav-cta {
    display: flex;
    align-items: center;
    gap: 10px
}

.hamburger {
    display: none
}

/* Mobile menu */
.mobile {
    display: none;
    border-top: 1px solid var(--line);
    padding: 10px 28px 16px;
}

    .mobile a {
        display: block;
        padding: 12px 10px;
        border-radius: 14px;
        color: var(--muted);
        font-weight: 700;
    }

        .mobile a:hover {
            background: var(--surface);
            color: var(--text)
        }

/* =========================
   SECTIONS
========================= */
.section {
    padding: 92px 0
}

.kicker {
    color: var(--muted);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 1.2px;
    font-weight: 700;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

    .section-head h2 {
        margin: 10px 0 0;
        font-size: var(--h2);
        letter-spacing: -.35px;
    }

    .section-head p {
        margin: 10px 0 0
    }

/* =========================
   HERO
========================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 64px;
    background-image: url("bg.png");
    background-size: cover
}

.hero-inner {
    position: relative
}

.hero-title {
    margin: 0;
    font-size: var(--h1);
    line-height: .75;
    font-weight: 700;
    letter-spacing: -.6px;
}

.hero-subtitle {
    margin: 0;
    padding-left: 2px;
    font-size: var(--h2);
    line-height: .65;
    font-weight: 600;
    letter-spacing: -1px;
}

.accent {
    color: var(--brand)
}

.hero-sub {
    margin-top: 18px;
    margin-left: 9px;
    max-width: 68ch;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.65;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 22px;
}

.hero-metrics {
    margin-top: 26px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    max-width: 720px;
}

.metric {
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: 16px;
    padding: 12px;
}

    .metric b {
        font-size: 16px
    }

    .metric span {
        display: block;
        margin-top: 2px;
        color: var(--muted);
        font-weight: 700;
        font-size: 12px
    }

/* =========================
   SERVICES
========================= */
.big-list {
    display: grid;
    gap: 10px;
    margin-top: 18px
}

.big-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--surface);
    transition: transform .15s ease, border-color .15s ease, background .15s ease;
}

    .big-item:hover {
        transform: translateY(-1px);
        border-color: color-mix(in srgb, var(--line), var(--brand) 35%);
        background: color-mix(in srgb, var(--surface), var(--brand) 8%);
    }

    .big-item b {
        font-size: 18px
    }

    .big-item p {
        margin: 6px 0 0
    }

.pill {
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--muted);
    font-weight: 800;
    font-size: 12px;
    background: color-mix(in srgb, var(--bg), transparent 72%);
    white-space: nowrap;
}

.cntrimg {
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 15px;
    margin-top: 15px;
}

/* =========================
   WORK
========================= */
.work-grid {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 16px;
}

.work {
    position: relative;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--surface);
    overflow: hidden;
    min-height: 220px;
    transition: transform .15s ease, border-color .15s ease;
    text-align: center;
}

    .work:hover {
        transform: translateY(-2px);
        border-color: color-mix(in srgb, var(--line), var(--brandrepinu) 35%);
    }

    .work::before {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(600px 260px at 20% 20%, rgba(64,64,184,.18), transparent 55%), radial-gradient(520px 240px at 80% 80%, rgba(255,255,255,.08), transparent 60%);
        opacity: .85;
        transition: opacity .15s ease;
        pointer-events: none;
    }

.workbng {
    position: relative;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--surface);
    overflow: hidden;
    min-height: 220px;
    transition: transform .15s ease, border-color .15s ease;
    text-align: center;
}

    .workbng:hover {
        transform: translateY(-2px);
        border-color: color-mix(in srgb, var(--line), var(--brandbongo) 35%);
    }

    .workbng::before {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(600px 260px at 20% 20%, rgba(250,93,133,.18), transparent 55%), radial-gradient(520px 240px at 80% 80%, rgba(255,255,255,.08), transparent 60%);
        opacity: .85;
        transition: opacity .15s ease;
        pointer-events: none;
    }

[data-theme="light"] .work::before {
    background: radial-gradient(600px 260px at 20% 20%, rgba(0,224,164,.14), transparent 55%), radial-gradient(520px 240px at 80% 80%, rgba(15,17,21,.10), transparent 60%);
}

.work:hover::before {
    opacity: 1
}

.work-inner {
    position: relative;
    padding: 18px
}

.tags {
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px
}

.tag {
    font-size: 12px;
    font-weight: 800;
    color: var(--muted);
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg), transparent 65%);
}

/* =========================
   PROCESS + CTA
========================= */
.process {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 16px;
}

.step {
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: var(--radius);
    padding: 18px;
}

.num {
    width: 36px;
    height: 36px;
    border-radius: 14px;
    display: inline-grid;
    place-items: center;
    background: color-mix(in srgb, var(--brand), transparent 86%);
    border: 1px solid color-mix(in srgb, var(--brand), transparent 68%);
    color: var(--brand);
    font-weight: 900;
    margin-bottom: 10px;
}

.step b {
    display: block;
    margin-bottom: 6px
}

.cta {
    margin-top: 22px;
    border-radius: 28px;
    border: 1px solid var(--line);
    background: radial-gradient(900px 420px at 30% 30%, rgba(0,224,164,.14), transparent 55%), var(--surface);
    padding: 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

    .cta h3 {
        margin: 0;
        font-size: clamp(22px, 2.6vw, 32px);
        letter-spacing: -.25px
    }

    .cta p {
        margin: 10px 0 0
    }

.cta-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap
}

/* =========================
   CONTACT
========================= */
.contact {
    margin-top: 18px;
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 16px;
}

.card {
    border: 1px solid var(--line);
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.p {
    padding: 18px
}

label {
    display: block;
    font-size: 13px;
    font-weight: 800;
    color: var(--muted);
    margin-bottom: 6px;
}

input, textarea, select {
    width: 100%;
    padding: 12px 12px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    outline: none;
    font-family: inherit;
    font-size: 14px;
}

textarea {
    min-height: 120px;
    resize: vertical
}

.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 14px
}

.hint {
    color: var(--muted);
    font-size: 12px
}

.aside-title {
    font-size: 18px;
    display: block;
    margin-bottom: 6px
}

.mini-grid {
    display: grid;
    gap: 12px;
    margin: 14px 0
}

.mini {
    padding: 12px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background: var(--surface);
}

.strong {
    margin-top: 6px;
    font-weight: 900
}

/* =========================
   FOOTER
========================= */
.footer {
    padding: 40px 0 46px;
    color: var(--muted)
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-left {
    max-width: 70ch
}

    .footer-left .logo {
        margin-bottom: 10px
    }

.footer-right {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end
}

.links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap
}

    .links a {
        padding: 10px 12px;
        border-radius: 14px;
        border: 1px solid var(--line);
        background: var(--surface);
        color: var(--muted);
        font-weight: 800;
    }

        .links a:hover {
            color: var(--text);
            border-color: color-mix(in srgb, var(--line), var(--brand) 35%);
            background: color-mix(in srgb, var(--surface), var(--brand) 8%);
        }

/* =========================
   ANIMATIONS (subtle + a11y)
========================= */
.reveal {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .5s ease, transform .5s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto
    }

    .btn, .icon-btn, .big-item, .work {
        transition: none
    }

    .reveal {
        opacity: 1;
        transform: none
    }
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 980px) {
    .section {
        padding: 76px 0
    }

    .nav-links {
        display: none
    }

    .hamburger {
        display: inline-grid
    }

    .mobile {
        padding: 10px 28px 16px
    }

    .hero {
        padding: 120px 0 56px
    }

    .hero-metrics {
        grid-template-columns: 1fr;
        max-width: 520px
    }

    .work-grid {
        grid-template-columns: 1fr
    }

    .process {
        grid-template-columns: 1fr 1fr
    }

    .contact {
        grid-template-columns: 1fr
    }

    .row {
        grid-template-columns: 1fr
    }

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

    .footer-right {
        align-items: flex-start
    }
}

@media (max-width: 520px) {
    .container {
        padding: 0 18px
    }

    .nav {
        height: 70px
    }

    .logo {
        height: 24px
    }
}