@font-face {
            font-family: 'Plus Jakarta Sans';
            font-style: normal;
            font-weight: 400;
            font-display: block;
            src: url(https://fonts.gstatic.com/s/plusjakartasans/v12/LDIbaomQNQcsA88c7O9yZ4KMCoOg4IA6-91aHEjcWuA_qU7NSg.ttf) format('truetype');
        }
        @font-face {
            font-family: 'Plus Jakarta Sans';
            font-style: normal;
            font-weight: 500;
            font-display: block;
            src: url(https://fonts.gstatic.com/s/plusjakartasans/v12/LDIbaomQNQcsA88c7O9yZ4KMCoOg4IA6-91aHEjcWuA_m07NSg.ttf) format('truetype');
        }
        @font-face {
            font-family: 'Plus Jakarta Sans';
            font-style: normal;
            font-weight: 600;
            font-display: block;
            src: url(https://fonts.gstatic.com/s/plusjakartasans/v12/LDIbaomQNQcsA88c7O9yZ4KMCoOg4IA6-91aHEjcWuA_d0nNSg.ttf) format('truetype');
        }
        @font-face {
            font-family: 'Plus Jakarta Sans';
            font-style: normal;
            font-weight: 700;
            font-display: block;
            src: url(https://fonts.gstatic.com/s/plusjakartasans/v12/LDIbaomQNQcsA88c7O9yZ4KMCoOg4IA6-91aHEjcWuA_TknNSg.ttf) format('truetype');
        }
        @font-face {
            font-family: 'Plus Jakarta Sans';
            font-style: normal;
            font-weight: 800;
            font-display: block;
            src: url(https://fonts.gstatic.com/s/plusjakartasans/v12/LDIbaomQNQcsA88c7O9yZ4KMCoOg4IA6-91aHEjcWuA_KUnNSg.ttf) format('truetype');
        }
        :root {
            --primary: #0c6e8a;
            --primary-dark: #084d63;
            --primary-light: #14a3c7;
            --accent: #d4a853;
            --accent-dark: #b8892e;
            --bg: #f7f9fc;
            --bg-dark: #0a1f2e;
            --card: #ffffff;
            --text: #1a2b3c;
            --text-muted: #5a6f82;
            --border: rgba(12, 110, 138, 0.12);
            --shadow: 0 4px 24px rgba(10, 31, 46, 0.06);
            --shadow-lg: 0 20px 50px rgba(10, 31, 46, 0.12);
            --radius: 20px;
            --radius-sm: 12px;
            --nav-h: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--nav-h);
        }

        body {
            font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.65;
            overflow-x: hidden;
            font-synthesis: none;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
            padding-left: max(24px, env(safe-area-inset-left));
            padding-right: max(24px, env(safe-area-inset-right));
        }

        /* ── Navigation ── */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            transition: box-shadow 0.3s;
        }

        .nav.scrolled .nav-bar { box-shadow: var(--shadow); }

        .nav-bar {
            height: var(--nav-h);
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
        }

        @media (min-width: 769px) {
            .nav-bar {
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
            }
        }

        .nav-inner {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
            padding-left: max(24px, env(safe-area-inset-left));
            padding-right: max(24px, env(safe-area-inset-right));
            height: var(--nav-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

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

        .logo img {
            height: 56px;
            width: auto;
            display: block;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        @media (min-width: 769px) {
            .nav-links {
                flex: 1;
                justify-content: center;
                min-width: 0;
                margin-inline: 12px;
            }

            .menu-toggle {
                display: none;
            }
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: color 0.2s;
            white-space: nowrap;
        }

        .nav-links a:hover { color: var(--primary); }

        .nav-right-area {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .nav-cta {
            padding: 10px 22px;
            background: var(--primary);
            color: #fff !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.88rem;
            transition: background 0.2s, transform 0.2s;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* Lang Switcher */
        .lang-switcher {
            display: inline-flex;
            align-items: center;
        }

        .lang-select {
            background: #fff;
            border: 1px solid var(--border);
            padding: 6px 12px;
            border-radius: 50px;
            font-family: inherit;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            cursor: pointer;
            outline: none;
            transition: all 0.2s;
        }

        .lang-select:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .hero-logo { margin-bottom: 28px; }
        .hero-logo img { height: 52px; width: auto; }
        .cta-logo { position: relative; margin-bottom: 28px; }
        .cta-logo img { height: 44px; width: auto; margin: 0 auto; }
        .footer-logo { margin-bottom: 16px; }
        .footer-logo img { height: 40px; width: auto; margin: 0 auto; opacity: 0.9; }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 10px;
            margin-inline-end: -10px;
            position: relative;
            z-index: 1002;
            -webkit-tap-highlight-color: transparent;
        }

        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            margin: 5px 0;
            transition: transform 0.3s, opacity 0.3s;
            transform-origin: center;
        }

        .menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .menu-toggle.active span:nth-child(2) { opacity: 0; }
        .menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        body.menu-open { overflow: hidden; }

        /* ── Hero ── */
        .hero {
            padding: calc(var(--nav-h) + 80px) 0 100px;
            background: linear-gradient(160deg, #e8f4f8 0%, #f7f9fc 40%, #fef9ee 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(12, 110, 138, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(12, 110, 138, 0.1);
            color: var(--primary-dark);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-badge::before {
            content: '';
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 50%;
        }

        .hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1px;
            color: var(--bg-dark);
            margin-bottom: 20px;
        }

        .hero h1 em { font-style: normal; color: var(--primary); }
        .hero-desc { font-size: 1.1rem; color: var(--text-muted); max-width: 520px; margin-bottom: 36px; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 48px; }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 30px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s;
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(12, 110, 138, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(12, 110, 138, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary-dark);
            border: 2px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(12, 110, 138, 0.05);
        }

        .hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
        .stat strong { display: block; font-size: 1.6rem; font-weight: 800; color: var(--primary-dark); line-height: 1.2; }
        .stat span { font-size: 0.82rem; color: var(--text-muted); font-weight: 500; }
        .hero-visual { position: relative; }
        .hero-card-stack { background: var(--card); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
        .hero-card-stack h3 { font-size: 1rem; color: var(--text-muted); font-weight: 500; margin-bottom: 20px; }

        .ecosystem-link {
            display: block;
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 20px;
            transition: color 0.2s;
        }

        .ecosystem-link:hover { color: var(--primary); }

        .mini-modules { display: flex; flex-direction: column; gap: 12px; }
        .mini-module {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
            text-decoration: none;
            color: inherit;
        }
        .mini-module:hover {
            transform: translateX(4px);
            background: #eef5f8;
            box-shadow: 0 2px 8px rgba(12, 110, 138, 0.08);
        }

        .mini-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--primary);
        }

        .mini-module:nth-child(1) .mini-icon { background: #e0f2fe; color: #0369a1; }
        .mini-module:nth-child(2) .mini-icon { background: #fef3c7; color: #b45309; }
        .mini-module:nth-child(3) .mini-icon { background: #d1fae5; color: #047857; }
        .mini-module:nth-child(4) .mini-icon { background: #ede9fe; color: #6d28d9; }

        .mini-module strong { font-size: 0.9rem; display: block; color: var(--text); }
        .mini-module small { font-size: 0.78rem; color: var(--text-muted); }

        /* ── Section commons ── */
        section { padding: 90px 0; }
        .section-label { display: inline-block; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--primary); margin-bottom: 12px; }
        .section-title { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -0.5px; color: var(--bg-dark); margin-bottom: 16px; }
        .section-desc { font-size: 1.05rem; color: var(--text-muted); max-width: 640px; }
        .section-header { text-align: center; margin-bottom: 56px; }
        .section-header .section-desc { margin: 0 auto; }

        /* ── Features ── */
        .features { background: var(--bg-dark); color: #fff; position: relative; overflow: hidden; }
        .features::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            pointer-events: none;
        }
        .features .section-label { color: var(--accent); }
        .features .section-title { color: #fff; }
        .features .section-desc { color: rgba(255,255,255,0.65); }
        .features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; z-index: 1; }
        .features-item { padding: 32px 28px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); transition: background 0.3s, transform 0.3s; }
        .features-item:hover { background: rgba(255,255,255,0.08); transform: translateY(-4px); }
        .features-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(255, 255, 255, 0.08); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--accent); }
        .features-item h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
        .features-item p { font-size: 0.9rem; color: rgba(255,255,255,0.6); line-height: 1.6; }

        /* ── Products ── */
        .products { background: #fff; }
        .product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
        .product-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; transition: all 0.3s; position: relative; scroll-margin-top: calc(var(--nav-h) + 16px); }
        .product-card:hover { box-shadow: var(--shadow-lg); border-color: rgba(12, 110, 138, 0.25); transform: translateY(-4px); }
        .product-card.featured { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #fff; border: none; }
        .product-card.featured:hover { box-shadow: 0 20px 50px rgba(12, 110, 138, 0.3); border-color: transparent; }
        .product-card.featured p, .product-card.featured li { color: rgba(255,255,255,0.85); }
        .product-card.featured li::before { color: var(--accent); }
        .product-card.featured .badge { background: rgba(255,255,255,0.2); color: #fff; }
        .product-card.featured h2 { color: #fff; }
        .card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
        .product-card h2 { font-size: 1.25rem; font-weight: 700; color: var(--primary-dark); display: flex; align-items: center; gap: 10px; }
        .card-icon { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 10px; background: rgba(12, 110, 138, 0.1); color: var(--primary); flex-shrink: 0; }
        .product-card.featured .card-icon { background: rgba(255, 255, 255, 0.15); color: #fff; }

        .icon { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
        .icon--sm { width: 16px; height: 16px; }
        .icon--md { width: 22px; height: 22px; }

        .badge { font-size: 0.72rem; background: rgba(12, 110, 138, 0.1); color: var(--primary-dark); padding: 5px 12px; border-radius: 50px; font-weight: 600; white-space: nowrap; flex-shrink: 0; }
        .product-card p { color: var(--text-muted); font-size: 0.92rem; margin-bottom: 18px; }
        .product-card ul { list-style: none; }
        .product-card li { position: relative; padding-left: 22px; margin-bottom: 10px; font-size: 0.88rem; color: var(--text); }
        .product-card li::before { content: "✓"; position: absolute; left: 0; color: var(--primary-light); font-weight: 700; }

        /* RTL genel düzenlemeler */
        html[dir="rtl"] .product-card li { padding-left: 0; padding-right: 22px; }
        html[dir="rtl"] .product-card li::before { left: auto; right: 0; }
        html[dir="rtl"] .mini-module:hover { transform: translateX(-4px); }
        html[dir="rtl"] .hero h1 { letter-spacing: 0; }

        @media (min-width: 769px) {
            html[dir="rtl"] .nav-links {
                gap: 18px;
            }

            html[dir="rtl"] .nav-links a {
                font-size: 0.84rem;
            }
        }

        /* ── Why Sejour ── */
        .why { background: linear-gradient(180deg, var(--bg) 0%, #eef5f8 100%); }
        .why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .why-card { text-align: center; padding: 36px 24px; background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); }
        .why-num { width: 48px; height: 48px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.1rem; margin: 0 auto 18px; }
        .why-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--bg-dark); }
        .why-card p { font-size: 0.85rem; color: var(--text-muted); }

        /* ── CTA ── */
        .cta { padding: 90px 0; background: #fff; }
        .cta-box { background: linear-gradient(135deg, var(--bg-dark) 0%, #123347 100%); border-radius: calc(var(--radius) + 8px); padding: 64px 48px; text-align: center; position: relative; overflow: hidden; }
        .cta-box::before { content: ''; position: absolute; top: 0; right: 0; width: 300px; height: 300px; background: radial-gradient(circle, rgba(212, 168, 83, 0.15) 0%, transparent 70%); }
        .cta-box h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; color: #fff; margin-bottom: 16px; position: relative; }
        .cta-box p { color: rgba(255,255,255,0.7); font-size: 1.05rem; max-width: 520px; margin: 0 auto 32px; position: relative; }
        .cta-box .btn-primary { position: relative; background: var(--accent); box-shadow: 0 8px 24px rgba(212, 168, 83, 0.35); }
        .cta-box .btn-primary:hover { background: var(--accent-dark); }
        .cta-contact { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; margin-top: 36px; position: relative; }
        .cta-contact a { color: rgba(255,255,255,0.8); font-size: 0.9rem; font-weight: 500; transition: color 0.2s; display: inline-flex; align-items: center; gap: 8px; }
        .cta-contact a:hover { color: var(--accent); }

        /* ── Footer ── */
        footer { background: var(--bg-dark); color: rgba(255,255,255,0.5); padding: 32px 0; text-align: center; font-size: 0.85rem; }
        footer strong { color: rgba(255,255,255,0.8); }

        /* ── Responsive ── */
        @media (max-width: 992px) {
            .hero-grid { grid-template-columns: 1fr; gap: 40px; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .why-grid { grid-template-columns: repeat(2, 1fr); }
            .product-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            :root { --nav-h: 64px; --radius: 16px; }
            .container { padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
            .nav-inner { padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
            .logo img { height: 30px; }
            .nav-right-area { gap: 12px; }
            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-h);
                left: 0;
                right: 0;
                bottom: 0;
                z-index: 1001;
                background: #fff;
                flex: none;
                flex-direction: column;
                align-items: stretch;
                margin: 0;
                padding: 20px 16px 32px;
                padding-left: max(16px, env(safe-area-inset-left));
                padding-right: max(16px, env(safe-area-inset-right));
                padding-bottom: max(32px, env(safe-area-inset-bottom));
                gap: 4px;
                box-shadow: var(--shadow);
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
            }
            .nav-links.open { display: flex; }
            .nav-links li { width: 100%; }
            .nav-links a { display: block; padding: 14px 16px; font-size: 1rem; border-radius: var(--radius-sm); }
            .nav-links a:not(.nav-cta):active { background: var(--bg); }
            .nav-cta { display: block; text-align: center; margin-top: 12px; padding: 14px 22px; }
            .menu-toggle { display: block; }
            section { padding: 56px 0; }
            .section-header { margin-bottom: 36px; }
            .section-desc { font-size: 0.95rem; }
            .hero { padding: calc(var(--nav-h) + 32px) 0 56px; }
            .hero h1 { font-size: clamp(1.75rem, 7vw, 2.2rem); letter-spacing: -0.5px; }
            .hero-desc { font-size: 1rem; margin-bottom: 28px; }
            .hero-actions { margin-bottom: 32px; }
            .hero-stats { gap: 20px; }
            .hero-card-stack { padding: 24px 20px; }
            .features-grid { grid-template-columns: 1fr; gap: 16px; }
            .features-item { padding: 24px 20px; }
            .product-card { padding: 24px 20px; }
            .card-top { flex-direction: column; align-items: flex-start; gap: 10px; }
            .product-card h2 { font-size: 1.1rem; line-height: 1.35; }
            .badge { margin-left: 0; }
            .why-grid { grid-template-columns: 1fr; gap: 16px; }
            .why-card { padding: 28px 20px; }
            .cta { padding: 56px 0; }
            .cta-box { padding: 40px 20px; border-radius: var(--radius); }
            .cta-box p { font-size: 0.95rem; }
            .cta-contact { flex-direction: column; align-items: center; gap: 14px; margin-top: 28px; }
            .cta-logo img { height: 36px; }
            footer { padding: 28px 0; padding-bottom: max(28px, env(safe-area-inset-bottom)); }
        }

        @media (max-width: 480px) {
            .hero-actions { flex-direction: column; }
            .btn { justify-content: center; width: 100%; padding: 14px 24px; font-size: 0.9rem; }
            .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; text-align: center; }
            .stat strong { font-size: 1.25rem; }
            .stat span { font-size: 0.72rem; line-height: 1.3; }
            .mini-module { padding: 12px 14px; }
            .mini-module strong { font-size: 0.85rem; }
            .mini-module small { font-size: 0.72rem; }
            .product-card li { font-size: 0.85rem; }
            .cta-box .btn-primary { width: 100%; justify-content: center; }
        }

        @media (max-width: 360px) {
            .hero-stats { grid-template-columns: 1fr 1fr; }
            .hero-stats .stat:last-child { grid-column: 1 / -1; }
        }