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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: Arial, Helvetica, sans-serif;
            background: #f7f9fc;
            color: #172033;
            line-height: 1.6;
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
        }

        /* =========================
           HEADER
        ========================= */

        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #e7ebf2;
        }

        .nav {
            max-width: 1200px;
            margin: auto;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .logo {
            font-size: 27px;
            font-weight: 900;
            letter-spacing: 2px;
            color: #0c1830;
        }

        .logo span {
            color: #1769ff;
        }

        .nav-links {
            display: flex;
            gap: 26px;
            align-items: center;
        }

        .nav-links a {
            font-size: 14px;
            font-weight: 600;
            color: #47536b;
            transition: 0.2s;
        }

        .nav-links a:hover {
            color: #1769ff;
        }

        .nav-button {
            background: #1769ff;
            color: white !important;
            padding: 11px 18px;
            border-radius: 10px;
        }

        .menu-btn {
            display: none;
            border: none;
            background: transparent;
            font-size: 28px;
        }

        /* =========================
           HERO
        ========================= */

        .hero {
            position: relative;
            overflow: hidden;
            background:
                radial-gradient(circle at 80% 20%, rgba(23,105,255,0.18), transparent 30%),
                radial-gradient(circle at 20% 80%, rgba(0,180,255,0.10), transparent 25%),
                #071326;
            color: white;
        }

        .hero-container {
            max-width: 1200px;
            min-height: 650px;
            margin: auto;
            padding: 90px 20px;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 50px;
            align-items: center;
        }

        .badge {
            display: inline-block;
            padding: 8px 14px;
            border: 1px solid rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.08);
            border-radius: 50px;
            font-size: 13px;
            margin-bottom: 22px;
        }

        .hero h1 {
            font-size: clamp(42px, 6vw, 72px);
            line-height: 1.04;
            margin-bottom: 25px;
            letter-spacing: -2px;
        }

        .hero h1 span {
            color: #61a0ff;
        }

        .hero p {
            max-width: 650px;
            color: #cbd5e7;
            font-size: 18px;
            margin-bottom: 34px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            border: none;
            border-radius: 11px;
            padding: 14px 22px;
            font-weight: 700;
            font-size: 15px;
            transition: 0.25s;
        }

        .btn-primary {
            background: #1769ff;
            color: white;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            background: #0e58dc;
        }

        .btn-light {
            background: white;
            color: #172033;
        }

        .btn-light:hover {
            transform: translateY(-2px);
        }

        /* HERO AI CARD */

        .ai-preview {
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 22px;
            padding: 22px;
            box-shadow: 0 30px 80px rgba(0,0,0,0.25);
        }

        .ai-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }

        .ai-icon {
            width: 45px;
            height: 45px;
            display: grid;
            place-items: center;
            background: #1769ff;
            border-radius: 12px;
            font-size: 22px;
        }

        .ai-top strong {
            display: block;
        }

        .ai-top small {
            color: #aebbd0;
        }

        .chat {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .message {
            max-width: 90%;
            padding: 13px 15px;
            border-radius: 14px;
            font-size: 14px;
        }

        .message.ai {
            background: rgba(255,255,255,0.09);
            align-self: flex-start;
        }

        .message.user {
            background: #1769ff;
            align-self: flex-end;
        }

        /* =========================
           GENERAL SECTIONS
        ========================= */

        section {
            padding: 90px 20px;
        }

        .container {
            max-width: 1200px;
            margin: auto;
        }

        .section-heading {
            text-align: center;
            max-width: 750px;
            margin: 0 auto 55px;
        }

        .section-heading .label {
            color: #1769ff;
            font-weight: 800;
            text-transform: uppercase;
            font-size: 12px;
            letter-spacing: 1.5px;
        }

        .section-heading h2 {
            font-size: clamp(30px, 4vw, 46px);
            line-height: 1.15;
            margin: 10px 0 16px;
        }

        .section-heading p {
            color: #68758d;
        }

        /* =========================
           SERVICES
        ========================= */

        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .service-card {
            background: white;
            border: 1px solid #e8edf4;
            padding: 25px;
            border-radius: 18px;
            transition: 0.25s;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 18px 45px rgba(25,50,90,0.10);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            display: grid;
            place-items: center;
            border-radius: 13px;
            background: #edf4ff;
            font-size: 22px;
            margin-bottom: 17px;
        }

        .service-card h3 {
            font-size: 18px;
            margin-bottom: 8px;
        }

        .service-card p {
            color: #718097;
            font-size: 14px;
        }

        /* =========================
           AI SECTION
        ========================= */

        .ai-section {
            background: #071326;
            color: white;
        }

        .ai-section .section-heading p {
            color: #aebbd0;
        }

        .ai-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .ai-card {
            padding: 28px;
            border: 1px solid rgba(255,255,255,0.1);
            background: rgba(255,255,255,0.05);
            border-radius: 18px;
        }

        .ai-card .number {
            font-size: 13px;
            color: #70a7ff;
            font-weight: 800;
        }

        .ai-card h3 {
            margin: 12px 0 8px;
        }

        .ai-card p {
            color: #afbdd2;
            font-size: 14px;
        }

        /* =========================
           PROCESS
        ========================= */

        .process {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 12px;
        }

        .step {
            position: relative;
            background: white;
            border: 1px solid #e7ecf3;
            padding: 20px 12px;
            text-align: center;
            border-radius: 15px;
        }

        .step-number {
            width: 36px;
            height: 36px;
            margin: auto auto 10px;
            border-radius: 50%;
            background: #1769ff;
            color: white;
            display: grid;
            place-items: center;
            font-weight: 800;
        }

        .step h4 {
            font-size: 14px;
        }

        /* =========================
           PRICING
        ========================= */

        .pricing-section {
            background: #eef4ff;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .price-card {
            background: white;
            border: 1px solid #dfe7f4;
            border-radius: 20px;
            padding: 30px;
        }

        .price-card.featured {
            border: 2px solid #1769ff;
            transform: translateY(-8px);
        }

        .price-card .tag {
            display: inline-block;
            background: #1769ff;
            color: white;
            padding: 5px 10px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 800;
            margin-bottom: 15px;
        }

        .price {
            font-size: 35px;
            font-weight: 900;
            margin: 12px 0;
        }

        .price span {
            font-size: 13px;
            color: #7a869a;
            font-weight: 400;
        }

        .price-list {
            list-style: none;
            margin: 20px 0;
        }

        .price-list li {
            margin: 10px 0;
            color: #59667d;
            font-size: 14px;
        }

        /* =========================
           TRACKING
        ========================= */

        .tracking-box {
            background: white;
            border: 1px solid #e3e9f2;
            border-radius: 20px;
            padding: 30px;
            max-width: 900px;
            margin: auto;
            box-shadow: 0 20px 60px rgba(30,55,90,0.08);
        }

        .tracking-head {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            align-items: center;
            margin-bottom: 25px;
        }

        .progress-bar {
            height: 10px;
            background: #e8edf5;
            border-radius: 50px;
            overflow: hidden;
            margin-bottom: 30px;
        }

        .progress {
            width: 65%;
            height: 100%;
            background: #1769ff;
        }

        .tracking-list {
            display: grid;
            gap: 12px;
        }

        .tracking-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px;
            background: #f7f9fc;
            border-radius: 10px;
        }

        .check {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: grid;
            place-items: center;
            background: #1769ff;
            color: white;
            font-size: 13px;
        }

        .pending {
            background: #e8edf5;
            color: #7b879b;
        }

        /* =========================
           STATS
        ========================= */

        .stats {
            background: white;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat {
            padding: 25px;
        }

        .stat strong {
            display: block;
            font-size: 40px;
            color: #1769ff;
        }

        .stat span {
            color: #718097;
        }

        /* =========================
           INSTITUT / COMMUNITY
        ========================= */

        .two-column {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
        }

        .large-card {
            background: white;
            border: 1px solid #e5eaf2;
            border-radius: 20px;
            padding: 35px;
        }

        .large-card h3 {
            font-size: 26px;
            margin-bottom: 12px;
        }

        .large-card p {
            color: #6c7890;
            margin-bottom: 20px;
        }

        .pill-list {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .pill {
            padding: 7px 12px;
            background: #edf4ff;
            color: #1769ff;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 700;
        }

        /* =========================
           CTA
        ========================= */

        .cta {
            background: linear-gradient(135deg, #1769ff, #0b49ba);
            color: white;
            text-align: center;
        }

        .cta h2 {
            font-size: clamp(30px, 5vw, 50px);
            margin-bottom: 15px;
        }

        .cta p {
            max-width: 650px;
            margin: 0 auto 28px;
            color: #dce8ff;
        }

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

        footer {
            background: #050d1a;
            color: white;
            padding: 55px 20px 25px;
        }

        .footer-grid {
            max-width: 1200px;
            margin: auto;
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
        }

        footer h4 {
            margin-bottom: 15px;
        }

        footer p,
        footer a {
            color: #93a0b5;
            font-size: 14px;
        }

        footer a {
            display: block;
            margin: 8px 0;
        }

        .copyright {
            max-width: 1200px;
            margin: 40px auto 0;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #718097;
            font-size: 12px;
        }

        /* =========================
           AI CHAT BUTTON
        ========================= */

        .chat-button {
            position: fixed;
            right: 22px;
            bottom: 22px;
            width: 62px;
            height: 62px;
            border: none;
            border-radius: 50%;
            background: #1769ff;
            color: white;
            font-size: 25px;
            box-shadow: 0 12px 35px rgba(23,105,255,0.4);
            z-index: 2000;
        }

        .chat-window {
            position: fixed;
            right: 22px;
            bottom: 95px;
            width: 350px;
            max-width: calc(100vw - 30px);
            background: white;
            border-radius: 18px;
            box-shadow: 0 25px 80px rgba(0,0,0,0.25);
            overflow: hidden;
            display: none;
            z-index: 1999;
        }

        .chat-window.active {
            display: block;
        }

        .chat-header {
            background: #071326;
            color: white;
            padding: 18px;
        }

        .chat-header strong {
            display: block;
        }

        .chat-header small {
            color: #aebbd0;
        }

        .chat-body {
            height: 310px;
            padding: 15px;
            overflow-y: auto;
            background: #f6f8fb;
        }

        .chat-message {
            padding: 10px 12px;
            border-radius: 12px;
            margin-bottom: 10px;
            max-width: 88%;
            font-size: 13px;
        }

        .chat-message.bot {
            background: white;
        }

        .chat-message.me {
            background: #1769ff;
            color: white;
            margin-left: auto;
        }

        .chat-input {
            display: flex;
            border-top: 1px solid #e3e7ee;
        }

        .chat-input input {
            flex: 1;
            border: none;
            padding: 14px;
            outline: none;
        }

        .chat-input button {
            border: none;
            background: #1769ff;
            color: white;
            width: 55px;
        }

        /* =========================
           RESPONSIVE
        ========================= */

        @media (max-width: 900px) {

            .nav-links {
                display: none;
            }

            .menu-btn {
                display: block;
            }

            .hero-container {
                grid-template-columns: 1fr;
                padding-top: 65px;
                padding-bottom: 65px;
            }

            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .ai-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process {
                grid-template-columns: repeat(3, 1fr);
            }

            .pricing-grid {
                grid-template-columns: 1fr;
            }

            .price-card.featured {
                transform: none;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .two-column {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 600px) {

            section {
                padding: 65px 15px;
            }

            .hero-container {
                padding-left: 15px;
                padding-right: 15px;
            }

            .hero h1 {
                font-size: 42px;
            }

            .hero p {
                font-size: 16px;
            }

            .services-grid,
            .ai-grid,
            .process,
            .stats-grid,
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .tracking-head {
                align-items: flex-start;
                flex-direction: column;
            }

            .chat-window {
                right: 15px;
                bottom: 90px;
            }

            .chat-button {
                right: 15px;
                bottom: 15px;
            }
        }