:root {
        --primary: #2563eb;
        --primary-hover: #1d4ed8;
        --primary-light: #eff6ff;
        --dark: #0f172a;
        --gray-text: #475569;
        --light-bg: #f8fafc;
        --border-color: #e2e8f0;
        --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: 'Plus Jakarta Sans', sans-serif;
        color: var(--dark);
        background: #ffffff;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
    }

    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ANIMATION UTITAS: SCROLL REVEAL STYLES */
    .reveal {
        opacity: 0;
        transform: translateY(40px);
        transition: var(--transition);
    }

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

    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }
    .delay-3 { transition-delay: 0.3s; }

    /* HEADER NAVBAR */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border-color);
        z-index: 1000;
        padding: 16px 0;
        transition: var(--transition);
    }

    .navbar .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        font-size: 22px;
        font-weight: 800;
        color: var(--primary);
        text-decoration: none;
        letter-spacing: -0.5px;
    }

    nav {
        display: flex;
        gap: 32px;
        align-items: center;
    }

    nav a {
        text-decoration: none;
        color: var(--gray-text);
        font-weight: 500;
        font-size: 15px;
        transition: var(--transition);
    }

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

    .btn-login {
        background: var(--dark);
        color: #ffffff !important;
        padding: 10px 20px;
        border-radius: 8px;
        font-weight: 600;
    }

    .btn-login:hover {
        background: var(--primary);
        box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
    }

    /* HERO SECTION */
    .hero {
        padding: 180px 0 100px 0;
        background: radial-gradient(100% 100% at 50% 0%, #f0f7ff 0%, #ffffff 100%);
    }

    .hero-grid {
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 64px;
        align-items: center;
    }

    .badge {
        display: inline-block;
        background: var(--primary-light);
        color: var(--primary);
        padding: 6px 14px;
        border-radius: 50px;
        font-size: 13px;
        font-weight: 600;
        margin-bottom: 24px;
        border: 1px solid rgba(37, 99, 235, 0.1);
    }

    .hero h1 {
        font-size: 54px;
        font-weight: 800;
        line-height: 1.15;
        letter-spacing: -1.5px;
        margin-bottom: 24px;
        color: var(--dark);
    }

    .hero p {
        font-size: 18px;
        color: var(--gray-text);
        line-height: 1.6;
        margin-bottom: 40px;
    }

    .hero-buttons {
        display: flex;
        gap: 16px;
    }

    .btn-primary {
        background: var(--primary);
        color: #ffffff;
        text-decoration: none;
        padding: 16px 28px;
        border-radius: 10px;
        font-weight: 600;
        font-size: 16px;
        transition: var(--transition);
        display: inline-block;
    }

    .btn-primary:hover {
        background: var(--primary-hover);
        box-shadow: 0 10px 25px rgba(37, 99, 235, 0.25);
        transform: translateY(-2px);
    }

    .btn-secondary {
        border: 1px solid var(--border-color);
        background: #ffffff;
        padding: 16px 28px;
        border-radius: 10px;
        text-decoration: none;
        color: var(--dark);
        font-weight: 600;
        font-size: 16px;
        transition: var(--transition);
    }

    .btn-secondary:hover {
        background: var(--light-bg);
        border-color: #cbd5e1;
    }

    /* HERO MOCKUP CARD VISUAL */
    .hero-image {
        position: relative;
        display: flex;
        justify-content: center;
    }

    .mockup-card {
        background: #ffffff;
        border-radius: 24px;
        padding: 32px;
        width: 100%;
        max-width: 360px;
        border: 1px solid var(--border-color);
        box-shadow: 0 25px 60px rgba(15, 23, 42, 0.08);
        transition: var(--transition);
    }

    .mockup-card:hover {
        transform: translateY(-8px) rotate(1deg);
    }

    .mockup-card h3 {
        font-size: 20px;
        margin-bottom: 12px;
        font-weight: 700;
    }

    .mockup-card p {
        background: var(--light-bg);
        padding: 8px 12px;
        border-radius: 8px;
        font-weight: 600;
        color: var(--primary);
        display: inline-block;
        margin-bottom: 16px;
    }

    .mockup-card span {
        display: block;
        font-size: 13px;
        color: #10b981;
        font-weight: 600;
    }

    /* FEATURES SECTION */
    .features, .workflow, .pricing, .cta {
        padding: 120px 0;
    }

    .features { background: var(--light-bg); }

    h2 {
        font-size: 36px;
        font-weight: 800;
        text-align: center;
        letter-spacing: -1px;
        margin-bottom: 16px;
    }

    .section-desc {
        text-align: center;
        color: var(--gray-text);
        max-width: 600px;
        margin: 0 auto 56px auto;
        font-size: 16px;
    }

    .feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .feature-card {
        background: #ffffff;
        border: 1px solid var(--border-color);
        border-radius: 16px;
        padding: 32px;
        transition: var(--transition);
    }

    .feature-card:hover {
        transform: translateY(-6px);
        border-color: rgba(37, 99, 235, 0.3);
        box-shadow: 0 20px 40px rgba(15, 23, 42, 0.04);
    }

    .feature-card .icon-box {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .feature-card h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 12px;
    }

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

    /* WORKFLOW SECTION */
    .steps {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
        position: relative;
    }

    .step {
        text-align: center;
        position: relative;
    }

    .step span {
        width: 56px;
        height: 56px;
        background: var(--primary);
        color: #ffffff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 16px;
        font-weight: 700;
        font-size: 18px;
        margin-bottom: 24px;
        box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
    }

    .step h3 {
        font-size: 16px;
        font-weight: 700;
    }

    /* PRICING SECTION */
    .pricing-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        align-items: center;
        max-width: 1000px;
        margin: 0 auto;
    }

    .price-card {
        background: #ffffff;
        border: 1px solid var(--border-color);
        border-radius: 20px;
        padding: 40px 32px;
        text-align: center;
        position: relative;
        transition: var(--transition);
    }

    .price-card h3 {
        font-size: 18px;
        color: var(--gray-text);
        margin-bottom: 16px;
    }

    .price-card h1 {
        font-size: 44px;
        font-weight: 800;
        margin-bottom: 8px;
    }

    .price-card p {
        font-size: 15px;
        color: var(--gray-text);
        margin-bottom: 32px;
    }

    .price-card.featured {
        border: 2px solid var(--primary);
        box-shadow: 0 20px 40px rgba(37, 99, 235, 0.08);
        background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
        padding: 56px 32px;
    }

    .ribbon {
        position: absolute;
        top: 16px;
        right: 16px;
        background: var(--primary);
        color: #ffffff;
        padding: 4px 12px;
        border-radius: 20px;
        font-size: 11px;
        font-weight: 700;
    }

    /* CTA SECTION */
    .cta {
        text-align: center;
        background: var(--dark);
        color: #ffffff;
        position: relative;
        overflow: hidden;
    }

    .cta h2 {
        font-size: 40px;
        max-width: 700px;
        margin: 0 auto 24px auto;
        line-height: 1.2;
    }

    .cta p {
        color: #94a3b8;
        margin-bottom: 40px;
    }

    /* FOOTER */
    footer {
        padding: 40px 0;
        text-align: center;
        border-top: 1px solid var(--border-color);
        background: #ffffff;
        color: var(--gray-text);
        font-size: 14px;
    }

    /* RESPONSIVE LAYOUT */
    @media(max-width: 991px) {
        .hero-grid { grid-template-columns: 1fr; gap: 48px; text-align: center; }
        .hero-buttons { justify-content: center; }
        .feature-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
        .steps { grid-template-columns: repeat(2, 1fr); gap: 40px; }
        .hero h1 { font-size: 42px; }
    }

    @media(max-width: 768px) {
        nav { display: none; }
        .feature-grid, .pricing-grid, .steps { grid-template-columns: 1fr; }
        .hero h1 { font-size: 34px; }
        h2 { font-size: 28px; }
        .cta h2 { font-size: 28px; }
    }