@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

        :root {
            /* 1. TEMA: Kurumsal Odak & Ciddiyet (Varsayılan - Slate) */
            --bg-dark: #202029;
            --bg-card: #282833;
            --bg-surface: #24242e;
            --primary: #4f46e5;
            --primary-hover: #6366f1;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #e2e2ea;
            --text-muted: #a4a0b2;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-focus: #4f46e5;
            --input-bg: #1c1c24;
        }

        [data-theme="slate"], html[data-theme="slate"] {
            --bg-dark: #202029;
            --bg-card: #282833;
            --bg-surface: #24242e;
            --primary: #4f46e5;
            --primary-hover: #6366f1;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #e2e2ea;
            --text-muted: #a4a0b2;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-focus: #4f46e5;
            --input-bg: #1c1c24;
        }

        [data-theme="future"], html[data-theme="future"] {
            --bg-dark: #191826;
            --bg-card: #222033;
            --bg-surface: #1d1c2c;
            --primary: #0284c7;
            --primary-hover: #38bdf8;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #e0e7f1;
            --text-muted: #a2abbd;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-focus: #0284c7;
            --input-bg: #161521;
        }

        [data-theme="hope"], html[data-theme="hope"] {
            --bg-dark: #181522;
            --bg-card: #221c30;
            --bg-surface: #1d1828;
            --primary: #d97706;
            --primary-hover: #f59e0b;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #f2ede4;
            --text-muted: #b5aba0;
            --border-color: rgba(245, 158, 11, 0.15);
            --border-focus: #d97706;
            --input-bg: #15121e;
        }

        [data-theme="void"], html[data-theme="void"] {
            --bg-dark: #121017;
            --bg-card: #1b1824;
            --bg-surface: #181520;
            --primary: #8b5cf6;
            --primary-hover: #a78bfa;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #ece9f3;
            --text-muted: #aba3bb;
            --border-color: rgba(255, 255, 255, 0.07);
            --border-focus: #8b5cf6;
            --input-bg: #100e15;
        }

        [data-theme="wisdom"], html[data-theme="wisdom"] {
            --bg-dark: #1F1A29;
            --bg-card: #272235;
            --bg-surface: #241f30;
            --primary: #6c42ba;
            --primary-hover: #7d52cf;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #e4dfec;
            --text-muted: #b2abc0;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-focus: #6c42ba;
            --input-bg: #1b1624;
        }

        /* ==================== 2. KATEGORİ: PULSARIUM ==================== */
        /* ==================== 2. KATEGORİ: PULSARIUM ==================== */
        [data-theme="pulsarium-moss"], html[data-theme="pulsarium-moss"] {
            --bg-dark: #0b110b;
            --bg-card: #152215;
            --bg-surface: #101810;
            --primary: #2ea04f;
            --primary-hover: #38b95f;
            --accent-green: #38b95f;
            --accent-red: #ef4444;
            --text-main: #e8f5e5;
            --text-muted: #95b390;
            --border-color: rgba(46, 160, 79, 0.3);
            --border-focus: #2ea04f;
            --input-bg: #080c08;
        }

        [data-theme="pulsarium-mint"], html[data-theme="pulsarium-mint"] {
            --bg-dark: #07120e;
            --bg-card: #11241c;
            --bg-surface: #0c1a14;
            --primary: #10b981;
            --primary-hover: #34d399;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #e6faf2;
            --text-muted: #88c2a8;
            --border-color: rgba(16, 185, 129, 0.32);
            --border-focus: #10b981;
            --input-bg: #050d0a;
        }

        [data-theme="pulsarium-abyss"], html[data-theme="pulsarium-abyss"] {
            --bg-dark: #0d121c;
            --bg-card: #162033;
            --bg-surface: #111826;
            --primary: #10b981;
            --primary-hover: #22c55e;
            --accent-green: #22c55e;
            --accent-red: #ef4444;
            --text-main: #e2eafc;
            --text-muted: #889ec7;
            --border-color: rgba(16, 185, 129, 0.35);
            --border-focus: #10b981;
            --input-bg: #090e17;
        }

        [data-theme="pulsarium-twilight"], html[data-theme="pulsarium-twilight"] {
            --bg-dark: #141018;
            --bg-card: #221b2b;
            --bg-surface: #1a1520;
            --primary: #22c55e;
            --primary-hover: #34d399;
            --accent-green: #34d399;
            --accent-red: #ef4444;
            --text-main: #f3e8f8;
            --text-muted: #b099bd;
            --border-color: rgba(52, 211, 153, 0.32);
            --border-focus: #22c55e;
            --input-bg: #0f0c12;
        }

        [data-theme="pulsarium-aurora"], html[data-theme="pulsarium-aurora"] {
            --bg-dark: #071217;
            --bg-card: #10242e;
            --bg-surface: #0c1a21;
            --primary: #06b6d4;
            --primary-hover: #22d3ee;
            --accent-green: #06b6d4;
            --accent-red: #ef4444;
            --text-main: #e0f7fa;
            --text-muted: #7ec7d8;
            --border-color: rgba(6, 182, 212, 0.35);
            --border-focus: #06b6d4;
            --input-bg: #050d11;
        }

        /* ==================== 3. KATEGORİ: ANTEA ==================== */
        [data-theme="antea-crimson"], html[data-theme="antea-crimson"] {
            --bg-dark: #140d0d;
            --bg-card: #221414;
            --bg-surface: #1a1010;
            --primary: #dc2626;
            --primary-hover: #ef4444;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #fef2f2;
            --text-muted: #b98e8e;
            --border-color: rgba(239, 68, 68, 0.32);
            --border-focus: #dc2626;
            --input-bg: #0e0909;
        }

        [data-theme="antea-scarlet"], html[data-theme="antea-scarlet"] {
            --bg-dark: #140f0c;
            --bg-card: #261911;
            --bg-surface: #1c140e;
            --primary: #ea580c;
            --primary-hover: #f97316;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #fff7ed;
            --text-muted: #c49a82;
            --border-color: rgba(234, 88, 12, 0.35);
            --border-focus: #ea580c;
            --input-bg: #0d0a08;
        }

        [data-theme="antea-bloodstone"], html[data-theme="antea-bloodstone"] {
            --bg-dark: #160a0a;
            --bg-card: #271010;
            --bg-surface: #1d0d0d;
            --primary: #ff2a2a;
            --primary-hover: #ff4d4d;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #fff1f2;
            --text-muted: #cca0a0;
            --border-color: rgba(255, 42, 42, 0.38);
            --border-focus: #ff2a2a;
            --input-bg: #0f0707;
        }

        [data-theme="antea-ash"], html[data-theme="antea-ash"] {
            --bg-dark: #140d12;
            --bg-card: #24141e;
            --bg-surface: #1b1017;
            --primary: #e11d48;
            --primary-hover: #f43f5e;
            --accent-green: #10b981;
            --accent-red: #e11d48;
            --text-main: #fff1f2;
            --text-muted: #be929f;
            --border-color: rgba(225, 29, 72, 0.35);
            --border-focus: #e11d48;
            --input-bg: #0e090c;
        }

        /* ==================== 4. KATEGORİ: ASMVO ==================== */
        [data-theme="asmvo-minimal"], html[data-theme="asmvo-minimal"] {
            --bg-dark: #0c0d11;
            --bg-card: #161920;
            --bg-surface: #111318;
            --primary: #ff6200;
            --primary-hover: #ff7a1a;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #ffffff;
            --text-muted: #9aa3af;
            --border-color: rgba(255, 98, 0, 0.32);
            --border-focus: #ff6200;
            --input-bg: #08090d;
        }

        [data-theme="asmvo-hazard"], html[data-theme="asmvo-hazard"] {
            --bg-dark: #0a0b0f;
            --bg-card: #141720;
            --bg-surface: #0f1117;
            --primary: #ff5500;
            --primary-hover: #ff6f1a;
            --accent-green: #10b981;
            --accent-red: #ef4444;
            --text-main: #ffffff;
            --text-muted: #9da6b4;
            --border-color: rgba(255, 85, 0, 0.38);
            --border-focus: #ff5500;
            --input-bg: #07080b;
        }

        [data-theme="asmvo-asiimov"], html[data-theme="asmvo-asiimov"] {
            --bg-dark: #08090d;
            --bg-card: #131620;
            --bg-surface: #0e1017;
            --primary: #ff5900;
            --primary-hover: #ff731e;
            --accent-green: #10b981;
            --accent-red: #ff5900;
            --text-main: #ffffff;
            --text-muted: #a4adba;
            --border-color: rgba(255, 89, 0, 0.42);
            --border-focus: #ff5900;
            --input-bg: #06070a;
        }

        [data-theme="asmvo-asitech"], html[data-theme="asmvo-asitech"] {
            --bg-dark: #f4f5f8;
            --bg-card: #111317;
            --bg-surface: #ffffff;
            --primary: #ff5500;
            --primary-hover: #ff6f1f;
            --accent-green: #10b981;
            --accent-red: #ff5500;
            --text-main: #111317;
            --text-muted: #4b525e;
            --border-color: #111317;
            --border-focus: #ff5500;
            --input-bg: #ffffff;
        }

        [data-theme="asmvo-vanguard"], html[data-theme="asmvo-vanguard"] {
            --bg-dark: #e6ebf2;
            --bg-card: #1e2430;
            --bg-surface: #ffffff;
            --primary: #ff5500;
            --primary-hover: #ff6f1f;
            --accent-green: #10b981;
            --accent-red: #ff5500;
            --text-main: #11151c;
            --text-muted: #4a5468;
            --border-color: #ff5500;
            --border-focus: #ff731e;
            --input-bg: #ffffff;
        }

        [data-theme="asmvo-mecha"], html[data-theme="asmvo-mecha"] {
            --bg-dark: #121418;
            --bg-card: #101216;
            --bg-surface: #1a1e26;
            --primary: #ff5500;
            --primary-hover: #ff6f1f;
            --accent-green: #10b981;
            --accent-red: #ff5500;
            --text-main: #ffffff;
            --text-muted: #95a0b5;
            --border-color: #ff5500;
            --border-focus: #ff731e;
            --input-bg: #0d0f13;
        }

        /* 12 YENİ GEOMETRİK TEMA (PETEK, DALGA, ZİKZAK) */
        [data-theme="stellarch-hex"], html[data-theme="stellarch-hex"] {
            --bg-dark: #0c0b16; --bg-card: #18152e; --bg-surface: #141226; --primary: #8b5cf6; --primary-hover: #a78bfa;
            --accent-green: #10b981; --accent-red: #ef4444; --text-main: #f0effc; --text-muted: #a39ec4;
            --border-color: #6366f1; --border-focus: #818cf8; --input-bg: #090812;
        }
        [data-theme="stellarch-wave"], html[data-theme="stellarch-wave"] {
            --bg-dark: #0a0a14; --bg-card: #171530; --bg-surface: #121124; --primary: #a855f7; --primary-hover: #c084fc;
            --accent-green: #10b981; --accent-red: #ef4444; --text-main: #f5f3ff; --text-muted: #a79fc2;
            --border-color: #8b5cf6; --border-focus: #c084fc; --input-bg: #07070f;
        }
        [data-theme="stellarch-zigzag"], html[data-theme="stellarch-zigzag"] {
            --bg-dark: #0f0e1c; --bg-card: #1d1a38; --bg-surface: #17152b; --primary: #9333ea; --primary-hover: #a855f7;
            --accent-green: #10b981; --accent-red: #ef4444; --text-main: #f3f0fa; --text-muted: #aba4bf;
            --border-color: #a855f7; --border-focus: #d8b4fe; --input-bg: #0a0914;
        }
        [data-theme="pulsarium-hex"], html[data-theme="pulsarium-hex"] {
            --bg-dark: #06120e; --bg-card: #0e2920; --bg-surface: #0a1f18; --primary: #10b981; --primary-hover: #34d399;
            --accent-green: #10b981; --accent-red: #ef4444; --text-main: #ecfdf5; --text-muted: #86b9a3;
            --border-color: #10b981; --border-focus: #34d399; --input-bg: #040d0a;
        }
        [data-theme="pulsarium-wave"], html[data-theme="pulsarium-wave"] {
            --bg-dark: #071510; --bg-card: #102d24; --bg-surface: #0c211a; --primary: #059669; --primary-hover: #10b981;
            --accent-green: #10b981; --accent-red: #ef4444; --text-main: #f0fdf4; --text-muted: #87bda9;
            --border-color: #059669; --border-focus: #10b981; --input-bg: #040e0b;
        }
        [data-theme="pulsarium-zigzag"], html[data-theme="pulsarium-zigzag"] {
            --bg-dark: #081216; --bg-card: #122830; --bg-surface: #0d1e24; --primary: #00f5a0; --primary-hover: #38ef7d;
            --accent-green: #00f5a0; --accent-red: #ef4444; --text-main: #ecfeff; --text-muted: #83b8c5;
            --border-color: #06b6d4; --border-focus: #22d3ee; --input-bg: #050d10;
        }
        [data-theme="antea-hex"], html[data-theme="antea-hex"] {
            --bg-dark: #0c0d12; --bg-card: #181b26; --bg-surface: #14161f; --primary: #e61e38; --primary-hover: #ff2647;
            --accent-green: #10b981; --accent-red: #e61e38; --text-main: #f5f6fa; --text-muted: #9ba3af;
            --border-color: #e61e38; --border-focus: #ff2647; --input-bg: #08090d;
        }
        [data-theme="antea-wave"], html[data-theme="antea-wave"] {
            --bg-dark: #0e1017; --bg-card: #1b1f2c; --bg-surface: #161924; --primary: #ff2647; --primary-hover: #ff576f;
            --accent-green: #10b981; --accent-red: #ff2647; --text-main: #ffffff; --text-muted: #9ba4b5;
            --border-color: #ff2647; --border-focus: #ff576f; --input-bg: #090a0f;
        }
        [data-theme="antea-zigzag"], html[data-theme="antea-zigzag"] {
            --bg-dark: #101218; --bg-card: #1d212c; --bg-surface: #181b24; --primary: #e61e38; --primary-hover: #ff334f;
            --accent-green: #10b981; --accent-red: #e61e38; --text-main: #ffffff; --text-muted: #9fa8b8;
            --border-color: #e61e38; --border-focus: #ffffff; --input-bg: #0a0b10;
        }
        [data-theme="asmvo-hex"], html[data-theme="asmvo-hex"] {
            --bg-dark: #f4f5f8; --bg-card: #ffffff; --bg-surface: #111317; --primary: #ff5500; --primary-hover: #ff6f1f;
            --accent-green: #10b981; --accent-red: #ff5500; --text-main: #111317; --text-muted: #4b525e;
            --border-color: #ff5500; --border-focus: #111317; --input-bg: #ffffff;
        }
        [data-theme="asmvo-wave"], html[data-theme="asmvo-wave"] {
            --bg-dark: #0a0c10; --bg-card: #13161e; --bg-surface: #ffffff; --primary: #ff5500; --primary-hover: #ff6f1f;
            --accent-green: #10b981; --accent-red: #ff5500; --text-main: #ffffff; --text-muted: #95a0b5;
            --border-color: #ff5500; --border-focus: #ff731e; --input-bg: #ffffff;
        }
        [data-theme="asmvo-zigzag"], html[data-theme="asmvo-zigzag"] {
            --bg-dark: #0e1015; --bg-card: #12141b; --bg-surface: #ff5500; --primary: #ff5500; --primary-hover: #ff6f1f;
            --accent-green: #10b981; --accent-red: #ff5500; --text-main: #111317; --text-muted: #333333;
            --border-color: #111317; --border-focus: #ff5500; --input-bg: #ffffff;
        }

        /* ==================== CS2 ASMVO ŞEKİLLİ & ŞERİTLİ DESENLER ==================== */
        /* 1) asmvo-hazard: CS2 Mecha Açılı Şerit Deseni */
        [data-theme="asmvo-hazard"] .service-card,
        [data-theme="asmvo-hazard"] .hero-card {
            border-top: 3px solid #ff5500;
            background-image: repeating-linear-gradient(135deg, rgba(255, 85, 0, 0.08) 0px, rgba(255, 85, 0, 0.08) 12px, transparent 12px, transparent 24px);
        }
        [data-theme="asmvo-hazard"] .service-card:hover {
            border-color: #ff5500;
        }
        [data-theme="asmvo-hazard"] .navbar {
            border-bottom: 2px solid #ff5500;
        }

        /* 2) asmvo-asiimov: CS2 Asiimov İkonik Turuncu / Beyaz / Grafit Köşegen Şeritleri & Geometrik Açı */
        [data-theme="asmvo-asiimov"] .service-card,
        [data-theme="asmvo-asiimov"] .hero-card {
            position: relative;
            border-top: 3px solid #ff5900;
            border-left: 2px solid rgba(255, 255, 255, 0.2);
            background-image: repeating-linear-gradient(-45deg, rgba(255, 89, 0, 0.08) 0px, rgba(255, 89, 0, 0.08) 14px, transparent 14px, transparent 28px);
        }
        [data-theme="asmvo-asiimov"] .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, transparent 48%, rgba(255, 255, 255, 0.25) 48%, rgba(255, 255, 255, 0.25) 56%, transparent 56%, transparent 66%, #ff5900 66%);
            pointer-events: none;
        }
        [data-theme="asmvo-asiimov"] .service-card:hover {
            border-color: #ff5900;
            border-left: 3px solid #ffffff;
        }
        [data-theme="asmvo-asiimov"] .navbar {
            border-bottom: 2px solid #ff5900;
            background: linear-gradient(90deg, rgba(255,89,0,0.16) 0%, transparent 45%, transparent 55%, rgba(255,255,255,0.08) 100%), var(--bg-surface);
        }

        /* 3) asmvo-asitech: CS2 AK-47 Asiimov — Beyaz Taban + İnce Çizgiler, Siyah & Turuncu Şeritler */
        [data-theme="asmvo-asitech"] body,
        html[data-theme="asmvo-asitech"] body {
            background-color: #f4f5f8;
            background-image: repeating-linear-gradient(
                -45deg,
                transparent 0px,
                transparent 24px,
                rgba(17, 19, 23, 0.08) 24px,
                rgba(17, 19, 23, 0.08) 25.5px
            );
            background-attachment: fixed;
            color: #111317;
        }
        [data-theme="asmvo-asitech"] .service-card,
        [data-theme="asmvo-asitech"] .hero-card {
            position: relative;
            background: repeating-linear-gradient(
                -45deg,
                #111317 0px,
                #111317 32px,
                #ff5500 32px,
                #ff5500 64px
            ) !important;
            border: 2.5px solid #111317 !important;
            box-shadow: 0 6px 20px rgba(17, 19, 23, 0.16) !important;
            color: #ffffff !important;
        }
        [data-theme="asmvo-asitech"] .service-card h3,
        [data-theme="asmvo-asitech"] .service-card p,
        [data-theme="asmvo-asitech"] .hero-card h1,
        [data-theme="asmvo-asitech"] .hero-card p {
            color: #ffffff !important;
            text-shadow: 0 1px 3px rgba(0,0,0,0.9);
        }
        [data-theme="asmvo-asitech"] .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 60px;
            height: 60px;
            background: linear-gradient(
                135deg,
                transparent 42%,
                #ffffff 42%,
                #ffffff 52%,
                transparent 52%,
                transparent 60%,
                #111317 60%,
                #111317 70%,
                #ff5500 70%
            );
            pointer-events: none;
        }
        [data-theme="asmvo-asitech"] .service-card:hover {
            border-color: #111317 !important;
            box-shadow: 0 10px 28px rgba(255, 85, 0, 0.35), 0 2px 10px rgba(17, 19, 23, 0.4) !important;
            transform: translateY(-2px);
        }
        [data-theme="asmvo-asitech"] .navbar {
            background-color: #ffffff !important;
            border-bottom: 2.5px solid #111317 !important;
            box-shadow: 0 2px 10px rgba(17, 19, 23, 0.08) !important;
        }

        /* Erişilebilirlik & Klavye Odağı */
        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--primary-hover, #6366f1) !important;
            outline-offset: 2px !important;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
            box-shadow: none !important;
            text-shadow: none !important;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        /* TOP UTILITY BAR (Language Switcher) */
        .top-utility-bar {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            padding: 6px 40px;
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-color);
            font-size: 12px;
        }

        .lang-switcher {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .lang-label {
            color: var(--text-muted);
            margin-right: 6px;
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .lang-btn {
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.15s ease;
        }

        .lang-btn:hover {
            color: var(--text-main);
            border-color: var(--border-color);
        }

        .lang-btn.active {
            color: #ffffff;
            background: var(--primary);
            border-color: var(--primary);
        }

        /* NAVBAR */
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 14px 40px;
            background-color: var(--bg-surface);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-left {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #ffffff;
            cursor: pointer;
            text-decoration: none;
        }

        .nav-group-wrapper {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        /* External link buttons: 20% smaller */
        .nav-external-links {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-ext-btn {
            background: transparent;
            border: none;
            border-bottom: 2px solid transparent;
            color: var(--text-muted);
            padding: 6px 10px;
            font-size: 12.5px;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: color 0.15s ease, border-color 0.15s ease;
            display: inline-flex;
            align-items: center;
        }

        .nav-ext-btn:hover {
            color: var(--text-main);
            border-bottom-color: var(--border-color);
        }

        .nav-divider {
            width: 1px;
            height: 18px;
            background-color: var(--border-color);
        }

        /* Main Hub navigation buttons: normal size, underline only */
        .nav-main-links {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .nav-tab-btn {
            background: transparent;
            border: none;
            border-bottom: 2px solid transparent;
            color: var(--text-muted);
            padding: 6px 12px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: color 0.15s ease, border-color 0.15s ease;
            white-space: nowrap;
        }

        .nav-tab-btn:hover {
            color: var(--text-main);
            border-bottom-color: var(--border-color);
        }

        .nav-tab-btn.active {
            color: #ffffff;
            border-bottom-color: var(--primary);
        }

        /* DROPDOWN MENU FOR PROJECTS */
        .nav-dropdown-wrapper {
            position: relative;
            display: inline-flex;
            align-items: center;
        }

        .nav-dropdown-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            margin-top: 4px;
            min-width: 180px;
            background-color: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 6px 0;
            z-index: 1000;
        }

        .nav-dropdown-wrapper:hover .nav-dropdown-menu {
            display: block;
        }

        .nav-dropdown-item {
            display: block;
            padding: 8px 16px;
            font-size: 13.5px;
            font-weight: 500;
            color: var(--text-muted);
            text-decoration: none;
            transition: background-color 0.15s ease, color 0.15s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .nav-dropdown-item:hover {
            background-color: rgba(255, 255, 255, 0.05);
            color: #ffffff;
        }

        .nav-right {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .btn {
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
            border: 1px solid transparent;
            outline: none;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border-color: var(--border-color);
        }

        .btn-outline:hover {
            border-color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff;
            border-color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
        }

        /* MAIN CONTAINER (SPA Views) */
        .main-container {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px 20px;
        }

        .tab-view {
            display: none;
            width: 100%;
            max-width: 900px;
            margin: 0 auto;
        }

        .tab-view.active {
            display: block;
        }

        /* ABOUT VIEW */
        .content-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 40px;
        }

        .content-box h1 {
            font-size: 32px;
            margin-bottom: 24px;
            font-weight: 700;
            color: #ffffff;
        }

        .content-box p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .founders {
            margin-top: 32px;
            font-style: italic;
            color: var(--accent-green);
            font-weight: 600;
            border-left: 3px solid var(--accent-green);
            padding-left: 14px;
        }

        /* PROJECTS VIEW */
        .projects-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .projects-header {
            margin-bottom: 28px;
        }

        .projects-header h1 {
            font-size: 32px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 8px;
        }

        .projects-subtitle {
            font-size: 15.5px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .project-cards-stack {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .project-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 34px;
            scroll-margin-top: 90px;
        }

        .project-card-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 20px;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .project-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            background: rgba(79, 70, 229, 0.18);
            color: var(--primary-hover);
            margin-bottom: 8px;
            border: 1px solid rgba(79, 70, 229, 0.3);
        }

        .project-name {
            font-size: 24px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 4px;
        }

        .project-tagline {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .project-actions {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-project-ext {
            font-size: 13px;
            padding: 6px 14px;
        }

        .project-description {
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 22px;
        }

        .project-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 14px;
            margin-bottom: 22px;
        }

        .project-feature-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 14px 16px;
        }

        .project-feature-item h4 {
            font-size: 14px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 5px;
        }

        .project-feature-item p {
            font-size: 12.5px;
            color: var(--text-muted);
            line-height: 1.5;
        }

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

        .tech-tag {
            font-size: 11.5px;
            font-weight: 500;
            color: var(--text-muted);
            background: var(--input-bg);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 3px 9px;
        }

        /* COMMUNITY VIEW */
        .community-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 40px;
        }

        .community-box h1 {
            font-size: 32px;
            margin-bottom: 12px;
            font-weight: 700;
            color: #ffffff;
        }

        .community-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 30px;
            line-height: 1.6;
        }

        .community-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
            margin-bottom: 32px;
        }

        .community-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 24px;
        }

        .community-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #ffffff;
            font-weight: 600;
        }

        .community-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .community-cta {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .community-cta-text h4 {
            font-size: 17px;
            color: #ffffff;
            margin-bottom: 6px;
        }

        .community-cta-text p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* CONTACT FORM VIEW (MATCHING ATTACHED SCREENSHOT) */
        .contact-wrapper {
            max-width: 540px;
            margin: 0 auto;
        }

        .contact-form-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 34px 30px;
        }

        .form-group-field {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 14px;
            background: var(--input-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-main);
            font-size: 14px;
            outline: none;
            transition: border-color 0.15s ease;
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            border-color: var(--border-focus);
        }

        .form-select {
            cursor: pointer;
        }

        .form-select option {
            background-color: var(--bg-card);
            color: var(--text-main);
        }

        .form-textarea {
            resize: vertical;
            min-height: 100px;
            line-height: 1.5;
        }

        .checkbox-container {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 24px;
            cursor: pointer;
            user-select: none;
        }

        .checkbox-container input[type="checkbox"] {
            margin-top: 3px;
            width: 16px;
            height: 16px;
            accent-color: var(--primary);
            cursor: pointer;
            flex-shrink: 0;
        }

        .checkbox-text {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .checkbox-text a {
            color: var(--text-main);
            text-decoration: underline;
            cursor: pointer;
        }

        .checkbox-text a:hover {
            color: var(--primary-hover);
        }

        .btn-submit-contact {
            width: 100%;
            padding: 13px;
            border-radius: 9999px;
            background: var(--primary);
            color: #ffffff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: background-color 0.15s ease;
        }

        .btn-submit-contact:hover {
            background: var(--primary-hover);
        }

        .btn-submit-contact:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        /* ALERTS */
        .alert {
            padding: 12px 14px;
            border-radius: 8px;
            margin-bottom: 18px;
            font-size: 13px;
            display: none;
            line-height: 1.5;
        }

        .alert.error {
            display: block;
            background: rgba(239, 68, 68, 0.1);
            border: 1px solid var(--accent-red);
            color: #fca5a5;
        }

        .alert.success {
            display: block;
            background: rgba(16, 185, 129, 0.1);
            border: 1px solid var(--accent-green);
            color: #86efac;
        }

        .alert.warning {
            display: block;
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid #f59e0b;
            color: #fde68a;
        }

        /* MODALS */
        .modal-overlay {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0, 0, 0, 0.75);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.2s ease;
        }

        .modal-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        .modal-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            width: 100%;
            max-width: 440px;
            padding: 28px;
            transform: translateY(12px);
            transition: transform 0.2s ease;
        }

        .modal-overlay.active .modal-card {
            transform: translateY(0);
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .modal-header h3 {
            font-size: 20px;
            color: #ffffff;
            font-weight: 600;
        }

        .close-btn {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 22px;
            cursor: pointer;
            line-height: 1;
        }

        .close-btn:hover {
            color: var(--accent-red);
        }

        .modal-form-group {
            margin-bottom: 16px;
        }

        .modal-form-group label {
            display: block;
            margin-bottom: 6px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .modal-form-group input {
            width: 100%;
            padding: 10px 12px;
            background: var(--input-bg);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: #ffffff;
            font-size: 14px;
            outline: none;
        }

        .modal-form-group input:focus {
            border-color: var(--border-focus);
        }

        /* USER PROFILE BAR */
        #userProfileArea {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .user-greeting {
            font-size: 14px;
            color: var(--text-muted);
        }

        .user-greeting span {
            color: #ffffff;
            font-weight: 600;
        }



        /* VIEW MODE TOGGLE & RESTORE BAR */
        .view-mode-hub-btn {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-muted);
            border-radius: 4px;
            padding: 2px 8px;
            font-size: 11px;
            font-weight: 600;
            cursor: pointer;
            margin-left: 10px;
            transition: color 0.15s ease, border-color 0.15s ease;
        }
        .view-mode-hub-btn:hover {
            color: var(--text-main);
            border-color: var(--primary);
        }
        .mobile-hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: var(--text-main);
            padding: 6px 9px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }
        .mobile-restore-bar {
            position: fixed;
            bottom: 14px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 999999;
        }
        .btn-restore-mobile {
            background: var(--primary);
            color: #ffffff;
            border: none;
            border-radius: 20px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(0,0,0,0.5);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background-color 0.15s ease;
        }
        .btn-restore-mobile:hover {
            background: var(--primary-hover);
        }

        /* HİBRİT MOBİL RESPONSIVE DÜZEN */
        @media (max-width: 860px) {
            html:not([data-view-mode="desktop"]) .mobile-hamburger-btn,
            html[data-view-mode="mobile"] .mobile-hamburger-btn {
                display: inline-flex;
            }
            html:not([data-view-mode="desktop"]) .navbar,
            html[data-view-mode="mobile"] .navbar {
                padding: 10px 14px;
                flex-wrap: wrap;
                position: relative;
            }
            html:not([data-view-mode="desktop"]) .nav-left,
            html[data-view-mode="mobile"] .nav-left {
                width: 100%;
                display: flex;
                justify-content: space-between;
                align-items: center;
                gap: 0;
            }
            html:not([data-view-mode="desktop"]) .nav-group-wrapper,
            html[data-view-mode="mobile"] .nav-group-wrapper {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
                padding-top: 14px;
                border-top: 1px solid var(--border-color);
                margin-top: 10px;
            }
            html:not([data-view-mode="desktop"]) .nav-group-wrapper.mobile-menu-open,
            html[data-view-mode="mobile"] .nav-group-wrapper.mobile-menu-open {
                display: flex;
            }
            html:not([data-view-mode="desktop"]) .nav-external-links,
            html[data-view-mode="mobile"] .nav-external-links {
                display: flex;
                gap: 8px;
                width: 100%;
            }
            html:not([data-view-mode="desktop"]) .nav-ext-btn,
            html[data-view-mode="mobile"] .nav-ext-btn {
                flex: 1;
                justify-content: center;
                background: var(--bg-surface);
                border: 1px solid var(--border-color);
                border-radius: 6px;
                padding: 8px 10px;
                font-size: 13px;
            }
            html:not([data-view-mode="desktop"]) .nav-divider,
            html[data-view-mode="mobile"] .nav-divider {
                display: none;
            }
            html:not([data-view-mode="desktop"]) .nav-main-links,
            html[data-view-mode="mobile"] .nav-main-links {
                display: flex;
                flex-direction: column;
                gap: 4px;
                width: 100%;
            }
            html:not([data-view-mode="desktop"]) .nav-tab-btn,
            html[data-view-mode="mobile"] .nav-tab-btn {
                width: 100%;
                text-align: left;
                padding: 10px 12px;
                border-radius: 6px;
                font-size: 14.5px;
            }
            html:not([data-view-mode="desktop"]) .nav-tab-btn.active,
            html[data-view-mode="mobile"] .nav-tab-btn.active {
                background: rgba(79, 70, 229, 0.12);
                border-left: 3px solid var(--primary);
                border-bottom: 2px solid transparent;
            }
            html:not([data-view-mode="desktop"]) .nav-dropdown-wrapper,
            html[data-view-mode="mobile"] .nav-dropdown-wrapper {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }
            html:not([data-view-mode="desktop"]) .nav-dropdown-menu,
            html[data-view-mode="mobile"] .nav-dropdown-menu {
                position: static;
                display: block;
                background: transparent;
                border: none;
                padding-left: 14px;
            }
            html:not([data-view-mode="desktop"]) .nav-dropdown-item,
            html[data-view-mode="mobile"] .nav-dropdown-item {
                padding: 7px 10px;
                font-size: 13px;
            }
            html:not([data-view-mode="desktop"]) .nav-right,
            html[data-view-mode="mobile"] .nav-right {
                width: 100%;
                display: none;
                padding-top: 10px;
                border-top: 1px solid var(--border-color);
                justify-content: stretch;
                gap: 8px;
            }
            html:not([data-view-mode="desktop"]) .nav-right.mobile-menu-open,
            html[data-view-mode="mobile"] .nav-right.mobile-menu-open {
                display: flex;
            }
            html:not([data-view-mode="desktop"]) .nav-right .btn,
            html[data-view-mode="mobile"] .nav-right .btn {
                flex: 1;
                padding: 10px;
                text-align: center;
                font-size: 13.5px;
            }
            html:not([data-view-mode="desktop"]) .main-container,
            html[data-view-mode="mobile"] .main-container {
                padding: 16px 12px;
            }
            html:not([data-view-mode="desktop"]) .content-box,
            html:not([data-view-mode="desktop"]) .community-box,
            html:not([data-view-mode="desktop"]) .contact-form-card,
            html:not([data-view-mode="desktop"]) .project-card,
            html[data-view-mode="mobile"] .content-box,
            html[data-view-mode="mobile"] .community-box,
            html[data-view-mode="mobile"] .contact-form-card,
            html[data-view-mode="mobile"] .project-card {
                padding: 20px 14px;
                border-radius: 10px;
            }
            /* İletişim Formu: Dikey Tek Sütun */
            html:not([data-view-mode="desktop"]) .form-grid,
            html[data-view-mode="mobile"] .form-grid {
                grid-template-columns: 1fr !important;
                gap: 12px !important;
            }
            html:not([data-view-mode="desktop"]) .form-input,
            html:not([data-view-mode="desktop"]) .form-select,
            html:not([data-view-mode="desktop"]) .form-textarea,
            html[data-view-mode="mobile"] .form-input,
            html[data-view-mode="mobile"] .form-select,
            html[data-view-mode="mobile"] .form-textarea {
                font-size: 15px;
                padding: 12px 14px;
            }
            html:not([data-view-mode="desktop"]) .btn-submit-contact,
            html[data-view-mode="mobile"] .btn-submit-contact {
                padding: 14px;
                font-size: 15px;
            }
            /* Proje Kartları */
            html:not([data-view-mode="desktop"]) .project-card-header,
            html[data-view-mode="mobile"] .project-card-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            html:not([data-view-mode="desktop"]) .project-actions,
            html[data-view-mode="mobile"] .project-actions {
                width: 100%;
                flex-wrap: wrap;
            }
            html:not([data-view-mode="desktop"]) .btn-project-ext,
            html[data-view-mode="mobile"] .btn-project-ext {
                flex: 1;
                text-align: center;
                justify-content: center;
            }
            /* Modallar */
            html:not([data-view-mode="desktop"]) .modal-content,
            html[data-view-mode="mobile"] .modal-content {
                width: 95%;
                max-width: 95%;
                padding: 20px 15px;
            }
        }

        /* ZORUNLU MASAÜSTÜ MODU */
        html[data-view-mode="desktop"] body {
            overflow-x: auto;
        }
        html[data-view-mode="desktop"] .navbar,
        html[data-view-mode="desktop"] .main-container {
            min-width: 960px;
        }
        html[data-view-mode="desktop"] .mobile-hamburger-btn {
            display: none !important;
        }

        /* Interactive Terms Verification (Sun-Yellow & Confident Solid-Green, No Neon/Glow) */
        .terms-modal-card {
            max-width: 680px !important;
            width: 95% !important;
            max-height: 88vh !important;
            display: flex !important;
            flex-direction: column !important;
            box-sizing: border-box !important;
            padding: 22px 24px !important;
            overflow: hidden !important;
        }
        .terms-modal-card .modal-header {
            flex-shrink: 0;
            margin-bottom: 12px;
            padding-bottom: 10px;
        }
        .terms-modal-card .modal-body {
            display: flex !important;
            flex-direction: column !important;
            flex: 1 1 auto !important;
            min-height: 0 !important;
            overflow: hidden !important;
            padding: 0 !important;
        }
        .terms-scroll-body {
            flex: 1 1 auto !important;
            min-height: 180px !important;
            max-height: 48vh !important;
            overflow-y: auto !important;
            padding: 16px 18px;
            background: var(--bg-surface, #0f172a);
            border: 1px solid var(--border-color, #334155);
            border-radius: 8px;
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-main, #f8fafc);
        }
        .terms-scroll-body h2 {
            font-size: 14px;
            color: var(--primary, #3b82f6);
            margin-top: 14px;
            margin-bottom: 6px;
            border-bottom: 1px solid var(--border-color, #334155);
            padding-bottom: 4px;
        }
        .terms-scroll-body ul {
            padding-left: 20px;
            margin-bottom: 10px;
        }
        .terms-scroll-body li {
            margin-bottom: 4px;
        }
        .terms-footer-area {
            flex-shrink: 0 !important;
            margin-top: 18px !important;
            display: flex !important;
            flex-direction: column !important;
            gap: 8px !important;
        }
        /* Sarı arka plan yok, sadece tıklanabilirlik kutusu; sarı yazı ve kutu rengi: #e8e656 */
        .term-keyword {
            display: inline-block !important;
            padding: 2px 7px !important;
            margin: 1px 3px !important;
            background: transparent !important;
            background-color: transparent !important;
            color: #e8e656 !important;
            border: 1px dashed #e8e656 !important;
            border-radius: 4px !important;
            font-weight: 600 !important;
            cursor: pointer !important;
            user-select: none !important;
            box-shadow: none !important;
            text-shadow: none !important;
            transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease !important;
        }
        .term-keyword:hover {
            background: rgba(232, 230, 86, 0.08) !important;
            border-color: #fef08a !important;
            color: #fef08a !important;
        }
        /* Güven ve kararlılık hissettiren gerçek yeşil (neon/ışık/parlama yok) */
        .term-keyword.confirmed {
            background: transparent !important;
            background-color: transparent !important;
            color: #22c55e !important;
            border: 1px solid #16a34a !important;
            cursor: default !important;
            box-shadow: none !important;
            text-shadow: none !important;
            transform: none !important;
        }