:root {
            --color-primary: #0db7a1;
            --color-primary-hover: #0a9b88;
            --color-secondary: #ffffff;
            --bg-main: #0a1118;
            --bg-card: #121e27;
            --bg-header: rgba(10, 17, 24, 0.6);
            --text-main: #8fa5b5;
            --text-light: #ffffff;
            --font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
            --space-sm: 0.5rem;
            --space-md: 1rem;
            --space-lg: 2rem;
            --space-xl: 4rem;
            --border-card: 1px solid #1c2e3b;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --radius: 16px;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-family); color: var(--text-main); background-color: var(--bg-main); line-height: 1.6; }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul { list-style: none; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--space-md); }
        .section-padding { padding: var(--space-xl) 0; }

        /* HEADER */
        .header {
            position: fixed; top: 1rem; left: 50%; transform: translateX(-50%);
            width: 95%; max-width: 1100px;
            background: var(--bg-header); backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255,255,255,0.1);
            z-index: 1000; padding: 0.5rem 1rem; border-radius: 50px;
        }
        .header__inner { display: flex; justify-content: space-between; align-items: center; }
        .header__logo { display: flex; align-items: center; gap: 10px; font-size: 1.25rem; color: var(--text-light); font-weight: 700; }
        .nav { display: flex; align-items: center; gap: 2rem; }
        .nav__list { display: flex; gap: 2rem; }
        .nav__link { font-weight: 500; color: var(--text-light); }
        .nav__link:hover { color: var(--color-primary); }
        .btn { display: inline-block; padding: 0.75rem 1.5rem; border-radius: 30px; font-weight: 600; text-align: center; cursor: pointer; transition: var(--transition); font-family: var(--font-family); border: none; }
        .btn--primary { background-color: #fff; color: #000; border: 2px solid #fff; }
        .btn--primary:hover { background-color: #e2e8f0; border-color: #e2e8f0; }
        .btn--teal { background-color: var(--color-primary); color: #fff; border: 2px solid var(--color-primary); }
        .btn--teal:hover { background-color: var(--color-primary-hover); border-color: var(--color-primary-hover); }
        .header__menu-toggle { display: none; }
        .header__hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 1001; }
        .header__hamburger span { width: 25px; height: 3px; background-color: var(--text-light); transition: var(--transition); }

        /* HERO */
        .hero {
            padding-top: 160px; padding-bottom: 5rem; text-align: center;
            background: radial-gradient(circle at top center, rgba(13, 183, 161, 0.18) 0%, var(--bg-main) 65%);
        }
        .hero__badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(13,183,161,0.12); border: 1px solid rgba(13,183,161,0.3); color: var(--color-primary); border-radius: 30px; padding: 0.35rem 1rem; font-size: 0.85rem; font-weight: 600; margin-bottom: 1.5rem; }
        .hero__title { font-size: 3rem; line-height: 1.15; color: var(--text-light); margin-bottom: 1.25rem; font-weight: 800; letter-spacing: -1px; }
        .hero__title span { color: var(--color-primary); }
        .hero__desc { color: var(--text-main); font-size: 1.1rem; max-width: 640px; margin: 0 auto 2.5rem; }
        .hero__actions { display: flex; flex-direction: column; align-items: center; gap: 1rem; }

        /* SECTION HEADER */
        .section-header { text-align: center; margin-bottom: 3rem; }
        .section-header__subtitle { display: inline-block; color: var(--color-primary); font-weight: 600; border: 1px solid var(--color-primary); padding: 0.25rem 1rem; border-radius: 20px; margin-bottom: 1rem; font-size: 0.9rem; }
        .section-header__title { font-size: 2.2rem; color: var(--text-light); font-weight: 800; letter-spacing: -0.5px; }

        /* FEATURES */
        .features { background: var(--bg-main); }
        .features__grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
        .feature-card { background: var(--bg-card); border: var(--border-card); border-radius: var(--radius); padding: 2rem; transition: var(--transition); }
        .feature-card:hover { border-color: var(--color-primary); transform: translateY(-5px); }
        .feature-card__icon { width: 56px; height: 56px; border-radius: 14px; background: rgba(13,183,161,0.1); border: 1px solid rgba(13,183,161,0.25); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 1.25rem; }
        .feature-card__title { color: var(--text-light); font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem; }
        .feature-card__desc { font-size: 0.95rem; line-height: 1.7; }

        /* TECH STACK */
        .tech { background: var(--bg-card); border-top: var(--border-card); border-bottom: var(--border-card); }
        .tech__inner { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem; padding: 2.5rem 0; }
        .tech__badge { display: flex; align-items: center; gap: 0.5rem; background: var(--bg-main); border: var(--border-card); border-radius: 10px; padding: 0.6rem 1.2rem; color: var(--text-light); font-weight: 600; font-size: 0.9rem; transition: var(--transition); }
        .tech__badge:hover { border-color: var(--color-primary); color: var(--color-primary); }
        .tech__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); }

        /* PORTFOLIO */
        .portfolio__grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
        .portfolio-card { border-radius: var(--radius); overflow: hidden; border: var(--border-card); position: relative; background: var(--bg-card); transition: var(--transition); }
        .portfolio-card:hover { border-color: var(--color-primary); transform: translateY(-4px); }
        .portfolio-card img { width: 100%; height: 220px; object-fit: cover; transition: transform 0.5s ease; }
        .portfolio-card:hover img { transform: scale(1.04); }
        .portfolio-card__label { position: absolute; top: 1rem; left: 1rem; background: rgba(10,17,24,0.8); backdrop-filter: blur(8px); border: 1px solid rgba(13,183,161,0.3); color: var(--color-primary); padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }

        /* PROCESS */
        .process__steps { display: grid; grid-template-columns: 1fr; gap: 1.5rem; position: relative; }
        .step { display: flex; gap: 1.25rem; align-items: flex-start; }
        .step__num { min-width: 44px; height: 44px; border-radius: 50%; background: rgba(13,183,161,0.1); border: 2px solid var(--color-primary); display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-weight: 800; font-size: 1rem; flex-shrink: 0; }
        .step__content h4 { color: var(--text-light); font-weight: 700; margin-bottom: 0.3rem; }
        .step__content p { font-size: 0.95rem; }

        /* CTA */
        .cta-section { background: var(--bg-main); padding-bottom: var(--space-xl); }
        .cta__inner { background: var(--bg-card); border-radius: 24px; padding: 4rem 2rem; border: var(--border-card); text-align: center; box-shadow: 0 20px 60px rgba(13,183,161,0.08); }
        .cta__title { font-size: 2rem; color: var(--text-light); font-weight: 800; max-width: 600px; margin: 0 auto 0.75rem; letter-spacing: -0.5px; }
        .cta__subtitle { margin-bottom: 2rem; font-size: 1rem; }
        .text-highlight { color: var(--color-primary); }

        /* FOOTER */
        .footer { background-color: #050a0f; color: var(--text-main); padding: var(--space-xl) 0 var(--space-md); border-top: var(--border-card); }
        .footer__inner { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); margin-bottom: var(--space-lg); }
        .footer__logo { color: var(--text-light); display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; margin-bottom: 0.75rem; }
        .footer__links h4 { color: var(--text-light); margin-bottom: 1rem; }
        .footer__links ul { display: flex; flex-direction: column; gap: 0.5rem; }
        .footer__links a:hover { color: var(--color-primary); }
        .footer__contact h4 { color: var(--text-light); margin-bottom: 1rem; }
        .footer__contact p { display: flex; align-items: center; gap: 8px; margin-bottom: 0.5rem; }
        .footer__bottom { text-align: center; padding-top: 1rem; border-top: var(--border-card); font-size: 0.9rem; }
        .back-link { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--text-main); margin-bottom: 0.5rem; font-size: 0.95rem; transition: var(--transition); }
        .back-link:hover { color: var(--color-primary); }

        /* REVEAL */
        .reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.65s ease, transform 0.65s ease; }
        .reveal.visible { opacity: 1; transform: translateY(0); }

        /* MOBILE NAV */
        @media (max-width: 1023px) {
            .header__hamburger { display: flex; }
            .nav { position: absolute; top: calc(100% + 10px); left: 0; width: 100%; background: var(--bg-card); border: var(--border-card); border-radius: var(--radius); padding: 1.5rem; flex-direction: column; gap: 1rem; display: none; }
            .nav__list { flex-direction: column; gap: 1rem; }
            .header__menu-toggle:checked ~ .nav { display: flex; }
        }

        @media (min-width: 768px) {
            .hero__title { font-size: 4rem; }
            .hero__actions { flex-direction: row; justify-content: center; }
            .features__grid { grid-template-columns: repeat(2, 1fr); }
            .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
            .process__steps { grid-template-columns: repeat(2, 1fr); }
            .footer__inner { grid-template-columns: repeat(3, 1fr); }
        }

        @media (min-width: 1024px) {
            .hero__title { font-size: 4.5rem; }
            .features__grid { grid-template-columns: repeat(4, 1fr); }
            .portfolio__grid { grid-template-columns: repeat(3, 1fr); }
        }