:root {
            --bg: #ffffff;
            --text: #000000;
            --accent: #000000;
            --gray-light: #f8f9fa;
            --border: rgba(0,0,0,0.12);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
            --transition: all 0.4s cubic-bezier(0.23,1,0.32,1);
            --footer-bg: #ffffff;
            --footer-text: #1f2937;
            --footer-text-muted: #6b7280;
            --footer-accent: #1d4ed8;
            --footer-border: rgba(0,0,0,0.08);
            --footer-hover: #3b82f6;
            --badge-bg: rgba(0,0,0,0.03);
            --badge-border: rgba(0,0,0,0.10);
        }

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

        body {
            font-family: 'Inter', system-ui, sans-serif;
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            background: #f8fafc;
            background-image: 
            radial-gradient(#cbd5e1 0.2px, transparent 1px);
            background-size: 20px 20px;
        }

        /* ================== NAVIGATION ================== */
        nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 6%;
            z-index: 1000;
            backdrop-filter: blur(20px);
            background: rgba(255, 255, 255, 0.12);
            transition: var(--transition);
        }

        .logo {
            display: inline-flex;
            align-items: center;
            text-decoration: none;
            font-size: clamp(1.5rem, 4vw, 1.9rem);
            font-weight: 800;
            letter-spacing: -1.2px;
            color: var(--text);
            transition: var(--transition);
        }

        .logo img {
            display: block;
            height: 8rem;
            width: auto;
            max-height: 100%;
            object-fit: contain;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .logo:hover img {
            transform: scale(1.04);
            opacity: 0.92;
        }

        .nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
        }

        .nav-links a {
            color: var(--text);
            text-decoration: none;
            font-weight: 500;
            font-size: 15px;
            position: relative;
            padding: 8px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            transform: translateX(-50%);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

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

        .nav-btn {
            height: 38px;
            padding: 0 18px;
            font-size: 14.5px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 10px;
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            backdrop-filter: blur(16px);
            color: #fff;
            white-space: nowrap;
            position: relative;
            background: #000000;
        }

        .menu-toggle {
            display: none;
            width: 48px;
            height: 48px;
            background: none;
            border: none;
            cursor: pointer;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 6px;
            padding: 8px;
            z-index: 1001;
        }

        .menu-toggle span {
            width: 28px;
            height: 2.5px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
            transform-origin: center;
        }

        .menu-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translate(9px, 8px);
        }

        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
            transform: translateX(20px);
        }

        .menu-toggle.open span:nth-child(3) {
            transform: rotate(-45deg) translate(9px, -8px);
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100dvh;
            background: var(--bg);
            color: var(--text);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 48px;
            font-size: 2.8rem;
            font-weight: 400;
            letter-spacing: -1.5px;
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transform: translateY(-30px);
            transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
            pointer-events: all;
            transform: translateY(0);
        }

        .mobile-menu a {
            color: var(--text);
            text-decoration: none;
            opacity: 0.85;
            transition: all 0.4s ease;
        }

        .mobile-menu a:hover {
            opacity: 1;
            transform: scale(1.06);
        }
/* Main body */
        .body-no-scroll {
            overflow: hidden !important;
            height: 100vh !important;
        }

        .container {
            width: 100%;
            margin: 100px auto 120px;
            padding: 0 6%;
        }

        header {
            text-align: left;
            margin-bottom: 60px;
            border-left: 4px solid var(--accent);
            padding-left: 24px;
        }

        header h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 400;
            letter-spacing: -1.4px;
            line-height: 1.05;
            margin-bottom: 1.2rem;
            color: #0f172a;
        }

        header p {
            font-size: 1.25rem;
            color: #475569;
            margin-top: 10px;
        }

        .roadmap-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 20px;
            margin-bottom: 80px;
        }

        .phase-card {
            background: white;
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 32px;
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .phase-card:hover {
            border-color: var(--accent);
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.12);
        }

        .phase-num {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            display: block;
            margin-bottom: 12px;
        }

        .phase-card h2 {
            font-size: 1.75rem;
            margin-bottom: 12px;
            font-weight: 600;
            color: #0f172a;
        }

        .phase-card p {
            color: #475569;
            font-size: 0.95rem;
            margin-bottom: 24px;
        }

        .focus-list {
            list-style: none;
        }

        .focus-list li {
            font-size: 0.9rem;
            padding: 8px 0;
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            color: #475569;
        }

        .focus-list li::before {
            content: "→";
            margin-right: 12px;
            color: var(--accent);
        }
/* CTA — impact */
        .cta-box {
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            border-radius: 32px;
            padding: 60px 40px;
            text-align: center;
            margin-top: 40px;
            color: black;
        }

        .cta-box h2 { font-size:1.8rem; font-weight: 700; margin-bottom: 16px; }
        .cta-box p{font-size:.9rem; opacity:.85;}

        .btn-main {
            background: #000;
            color: #fff;
            padding: 10px 35px;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            display: inline-block;
            margin-top: 24px;
            transition: transform 0.2s ease;
        }

        .btn-main:hover { transform: scale(1.05); }

/* ================== FOOTER ================== */

/* ═══════════════════════════════════════════════════════
   Main Body Responsive (1200px down to 480px)
   ════════════════════════════════════════════════════ */

/* --- LARGE TABLETS / SMALL LAPTOPS (Up to 1200px) --- */
@media screen and (max-width: 1200px) {
    .container {
        margin: 60px auto 100px;
        padding: 0 4%;
    }

    header { 
        border-left: none; 
        position: relative; 
        padding-left: 24px; 
    }
    
    header::before { 
        content: ""; 
        position: absolute; 
        left: 0; 
        top: 35%; 
        height: 70%; 
        width: 4px; 
        background: var(--accent); 
    }

    header p { padding-top: 80px; font-size: 1.15rem; }

    .roadmap-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }

    .btn-main {
        display: inline-block;
        width: auto;
        padding: 16px 24px;
        text-align: center;
    }
}

/* --- TABLETS & PHABLETS (Up to 768px) --- */
@media screen and (max-width: 768px) {
    .container { padding: 0 3%; }
    header p { padding-top: 60px; }

    .roadmap-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .phase-card { padding: 24px; }

    .cta-box { 
        padding: 40px 24px; 
        border-radius: 24px; 
    }

    .phase-card h2 { font-size: 1.6rem; }
    .cta-box h2 { font-size: 1.8rem; }
}

.is-invalid{
    border-color : red !important;
}
.valid{
    border-color : #ddd;
}

/* --- SMALL MOBILE DEVICES (Up to 480px) --- */
@media screen and (max-width: 480px) {
    .container { 
        margin: 70px auto 80px; 
        padding: 0 2%; 
    }

    header { margin-bottom: 70px;}

    header p {font-size: 0.95rem; }
    header h1 {font-size: 1.8rem;}
    
    .btn-main {
        display: block;
        padding: 10px 20px;
        margin: 20px 15px; 
        text-align: center;
    }

    .cta-box p { 
        font-size: .9rem; 
        padding: 0 15px; 
        text-align: center;
    }

    .phase-num { font-size: 0.85rem; }
    .phase-card h2 { font-size: 1.4rem; }
    .phase-card p, .focus-list li, .cta-box p { font-size: 0.9rem; }
}