/* 
         * PREMIUM SAAS TECH MINIMALIST DESIGN SYSTEM
         * Color Palette: Alpine White, Slate Gray, Royal Indigo Accent (Stripe/Linear Inspired)
         */
        :root {
            --bg-base: #fafbfe; /* Light alpine white-blue */
            --bg-surface: #ffffff; /* Pure white card surface */
            --bg-neutral: #f1f5f9; /* Slate gray background fill */
            --text-main: #0f172a; /* Slate-900 primary high contrast text */
            --text-muted: #64748b; /* Slate-500 softer descriptive text */
            --primary: #4f46e5; /* Royal indigo focus accent */
            --primary-light: #e0e7ff; /* Soft light indigo background tint */
            --success: #10b981; /* Premium emerald green */
            --danger: #ef4444; /* High visibility red */
            --border-color: #e2e8f0; /* Soft slate border line */
            --font-sans: 'Inter', 'Noto Sans SC', sans-serif;
            --font-mono: 'JetBrains Mono', monospace;
            --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px -2px rgba(0, 0, 0, 0.02);
            --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.01);
            --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.6;
            font-weight: 400;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            font-weight: 600;
        }

        /* Subtle modern radial background grid overlay */
        body::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(rgba(15, 23, 42, 0.01) 1px, transparent 1px);
            background-size: 24px 24px;
            z-index: -2;
            pointer-events: none;
        }

        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ── Site Header ── */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 200;
            background: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset,
                        0 4px 24px -8px rgba(15, 23, 42, 0.06);
        }

        .header-inner {
            display: grid;
            grid-template-columns: auto 1fr auto;
            align-items: center;
            gap: 24px;
            height: 68px;
        }

        /* Brand */
        .brand {
            display: flex;
            align-items: center;
            gap: 11px;
            text-decoration: none;
            color: inherit;
            flex-shrink: 0;
        }

        .brand-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 11px;
            background: linear-gradient(145deg, #eef2ff 0%, #e0e7ff 100%);
            border: 1px solid rgba(79, 70, 229, 0.12);
            box-shadow: 0 2px 8px rgba(79, 70, 229, 0.08);
        }

        .brand-mark img {
            width: 28px;
            height: 28px;
            object-fit: contain;
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
            gap: 1px;
        }

        .brand-name {
            font-size: 1.05rem;
            font-weight: 600;
            letter-spacing: -0.03em;
            color: var(--text-main);
        }

        .brand-tag {
            font-size: 0.68rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.12em;
        }

        /* Nav pills */
        .nav-main {
            display: flex;
            justify-content: center;
            min-width: 0;
        }

        .nav-pills {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 5px;
            background: var(--bg-neutral);
            border: 1px solid var(--border-color);
            border-radius: 999px;
        }

        .nav-pills .nav-item {
            display: inline-block;
            padding: 7px 16px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: 999px;
            transition: color 0.2s, background 0.2s, box-shadow 0.2s;
            white-space: nowrap;
        }

        .nav-pills .nav-item:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.6);
        }

        .nav-pills .nav-item.is-active {
            color: var(--text-main);
            background: var(--bg-surface);
            box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(15, 23, 42, 0.04);
        }

        /* Header actions */
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .lang-switch {
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 12px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-muted);
            background: transparent;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: background 0.2s, color 0.2s;
        }

        .lang-switch:hover,
        .lang-switch:focus-within {
            background: var(--bg-neutral);
            color: var(--text-main);
        }

        .lang-chevron {
            font-size: 0.55rem;
            opacity: 0.5;
            transition: transform 0.2s;
        }

        .lang-switch:focus-within .lang-chevron {
            transform: rotate(180deg);
        }

        .lang-menu {
            position: absolute;
            top: calc(100% + 6px);
            right: 0;
            min-width: 132px;
            padding: 6px;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            box-shadow: var(--shadow-premium);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-4px);
            transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
            z-index: 210;
        }

        .lang-switch:hover .lang-menu,
        .lang-switch:focus-within .lang-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .lang-menu-item {
            display: block;
            width: 100%;
            padding: 8px 12px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-muted);
            text-align: left;
            background: none;
            text-decoration: none;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-family: inherit;
            transition: background 0.15s, color 0.15s;
        }

        .lang-menu-item:hover {
            background: var(--bg-neutral);
            color: var(--primary);
        }

        .lang-menu-item.is-active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-light);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 18px;
            font-size: 0.84rem;
            font-weight: 600;
            color: #fff;
            text-decoration: none;
            background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
            border-radius: 10px;
            box-shadow: 0 2px 8px rgba(79, 70, 229, 0.35);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .header-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.4);
        }

        .header-cta i {
            font-size: 0.75rem;
        }

        .mobile-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            padding: 0;
            font-size: 1.1rem;
            color: var(--text-main);
            background: var(--bg-neutral);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            cursor: pointer;
            transition: background 0.2s, transform 0.15s;
        }

        .mobile-toggle:hover {
            background: var(--border-color);
        }

        .mobile-toggle:active {
            transform: scale(0.92);
        }

        .mobile-toggle i {
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                        opacity 0.2s ease;
        }

        .mobile-toggle[aria-expanded="true"] i {
            transform: rotate(90deg);
        }

        @media (max-width: 900px) {
            .header-inner {
                grid-template-columns: auto 1fr;
            }

            .nav-main {
                display: block;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                z-index: 199;
                overflow: hidden;
                max-height: 0;
                opacity: 0;
                pointer-events: none;
                transform: translateY(-6px);
                transition: max-height 0.32s cubic-bezier(0.4, 0, 0.2, 1),
                            opacity 0.22s ease,
                            transform 0.22s ease;
            }

            .nav-main.is-open {
                max-height: 400px;
                opacity: 1;
                pointer-events: auto;
                transform: translateY(0);
            }

            .nav-pills {
                display: flex;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                margin: 0;
                padding: 12px 16px 16px;
                border-radius: 0;
                border: none;
                border-bottom: 1px solid var(--border-color);
                background: rgba(255, 255, 255, 0.98);
                box-shadow: 0 12px 24px -8px rgba(15, 23, 42, 0.1);
            }

            .nav-pills .nav-item {
                border-radius: 10px;
                padding: 12px 14px;
            }

            .site-header {
                position: sticky;
            }

            .site-header:has(.nav-main.is-open) .header-inner {
                border-bottom: none;
            }

            .lang-switch > span {
                display: none;
            }

            .lang-switch .lang-chevron {
                display: none;
            }

            .header-cta span {
                display: none;
            }

            .header-cta {
                padding: 9px 12px;
            }

            .mobile-toggle {
                display: inline-flex;
            }
        }

        @media (max-width: 480px) {
            .header-cta {
                display: none;
            }
        }

        /* ── Site Footer ── */
        .site-footer {
            margin-top: 48px;
            background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 55%, #f1f5f9 100%);
            border-top: 1px solid var(--border-color);
            padding: 52px 0 28px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: minmax(200px, 1.35fr) repeat(3, minmax(120px, 1fr));
            gap: 40px 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(226, 232, 240, 0.9);
        }

        .footer-brand-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            margin-bottom: 14px;
        }

        .footer-logo {
            width: 36px;
            height: 36px;
            object-fit: contain;
            flex-shrink: 0;
        }

        .footer-brand-text {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand-name {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-main);
            letter-spacing: -0.02em;
        }

        .footer-brand-badge {
            font-size: 0.68rem;
            font-weight: 500;
            padding: 2px 8px;
            border-radius: 6px;
            background: var(--primary-light);
            color: var(--primary);
        }

        .footer-tagline {
            font-size: 0.875rem;
            line-height: 1.65;
            color: var(--text-muted);
            max-width: 300px;
        }

        .footer-column h4 {
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--text-main);
            margin-bottom: 14px;
        }

        .footer-column ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .footer-column ul a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: #475569;
            text-decoration: none;
            padding: 3px 0;
            transition: color 0.2s;
        }

        .footer-column ul a i {
            width: 1em;
            font-size: 0.9em;
            color: #94a3b8;
            transition: color 0.2s;
        }

        .footer-column ul a:hover {
            color: var(--primary);
        }

        .footer-column ul a:hover i {
            color: var(--primary);
        }

        .footer-note {
            font-size: 0.8125rem;
            line-height: 1.65;
            color: var(--text-muted);
            padding: 14px 16px;
            background: rgba(255, 255, 255, 0.75);
            border: 1px solid var(--border-color);
            border-radius: 10px;
        }

        .footer-disclaimer {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 14px 16px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 10px;
            margin-bottom: 20px;
        }

        .footer-disclaimer-icon {
            color: #64748b;
            font-size: 0.75rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .footer-disclaimer p {
            font-size: 0.72rem;
            line-height: 1.65;
            color: #64748b;
            margin: 0;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 22px;
        }

        .site-footer .copyright {
            font-size: 0.8125rem;
            color: #64748b;
        }

        .footer-langs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-lang {
            font-size: 0.75rem;
            padding: 6px 12px;
            border-radius: 999px;
            color: #64748b;
            background: rgba(255, 255, 255, 0.85);
            border: 1px solid var(--border-color);
            cursor: pointer;
            text-decoration: none;
            transition: var(--transition-smooth);
        }

        .footer-lang:hover:not(.is-active) {
            color: var(--primary);
            border-color: #c7d2fe;
            background: var(--primary-light);
        }

        .footer-lang.is-active {
            color: var(--primary);
            background: var(--primary-light);
            border-color: #c7d2fe;
            font-weight: 500;
            cursor: default;
            pointer-events: none;
        }

        @media (max-width: 900px) {
            /* Make header fully opaque on mobile so content doesn't bleed through */
            .site-header {
                background: rgba(255, 255, 255, 0.97);
            }

            /* Push actions to the right end of the header */
            .header-actions {
                justify-self: end;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            .site-footer { padding: 40px 0 24px; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
            .footer-langs { flex-wrap: wrap; gap: 6px; }
            .footer-disclaimer { padding: 12px 14px; }
            .footer-disclaimer p { font-size: 0.7rem; }
        }

        /* ── Global container padding on small screens ── */
        @media (max-width: 480px) {
            .container { padding: 0 16px; }
        }