/* ========== Global Styles ========== */
        :root {
            --primary-color: #7c3aed;
            --primary-light: #a78bfa;
            --primary-dark: #5b21b6;
            --secondary-color: #f97316;
            --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
            --gradient-hero: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 50%, #ddd6fe 100%);
            --text-dark: #1f2937;
            --text-gray: #6b7280;
            --text-light: #9ca3af;
            --bg-light: #f9fafb;
            --white: #ffffff;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            --border-radius: 16px;
            --border-radius-lg: 24px;
        }

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

        body {
            font-family: 'Cairo', sans-serif;
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .text-gradient {
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }

        /* ========== Navbar ========== */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            padding: 15px 0;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .navbar.scrolled {
            padding: 10px 0;
            box-shadow: var(--shadow-md);
        }

        .navbar-brand {
            font-size: 1.8rem;
            font-weight: 800;
        }

        .brand-bsu {
            color: var(--primary-color);
        }

        .brand-tech {
            color: var(--text-dark);
        }

        .brand-dot {
            color: var(--secondary-color);
        }

        .nav-link {
            color: var(--text-gray) !important;
            font-weight: 500;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--primary-color) !important;
            background: rgba(124, 58, 237, 0.1);
        }

        .nav-buttons .btn {
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
        }

        .btn-primary {
            background: var(--gradient-primary);
            border: none;
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5);
            background: var(--gradient-primary);
        }

        .btn-outline-primary {
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
        }

        .btn-outline-primary:hover {
            background: var(--primary-color);
            border-color: var(--primary-color);
        }

        /* ========== Hero Section ========== */
        .hero-section {
            background: var(--white);
            min-height: calc(85vh - 85px);
            padding: 140px 0 60px;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 24px;
            color: var(--text-dark);
        }

        .hero-description {
            font-size: 1.1rem;
            color: var(--text-gray);
            margin-bottom: 35px;
            max-width: 480px;
            line-height: 1.8;
        }

        /* Hero Buttons */
        .hero-buttons {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .hero-buttons .btn-lg {
            padding: 14px 32px;
            font-size: 1rem;
            border-radius: 8px;
            font-weight: 600;
        }

        .btn-outline-dark {
            border: 2px solid var(--text-dark);
            color: var(--text-dark);
            background: transparent;
        }

        .btn-outline-dark:hover {
            background: var(--text-dark);
            color: var(--white);
        }

        /* Hero Image */
        .hero-image {
            position: relative;
            z-index: 1;
        }

        .hero-img-wrapper {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-circle {
            position: absolute;
            width: 400px;
            height: 400px;
            background: linear-gradient(135deg, #c7d2fe 0%, #ddd6fe 50%, #e9d5ff 100%);
            border-radius: 50%;
            z-index: 0;
        }

        .main-hero-img {
            position: relative;
            width: 100%;
            max-width: 400px;
            height: 400px;
            object-fit: cover;
            object-position: center;
            z-index: 1;
            border-radius: 50%;
        }

        .hero-dots {
            position: absolute;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            z-index: 2;
        }

        .dot-1 {
            background: var(--primary-color);
            top: 15%;
            right: 10%;
        }

        .dot-2 {
            background: #fbbf24;
            bottom: 30%;
            left: 5%;
        }

        .dot-3 {
            background: #10b981;
            top: 40%;
            right: 5%;
        }

        /* ========== Section Styles ========== */
        .section-header {
            margin-bottom: 50px;
        }

        .section-header.text-center {
            text-align: center;
        }

        .section-badge {
            display: inline-block;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary-color);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        .section-desc {
            color: var(--text-gray);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ========== Platform Overview Section ========== */
        .platform-overview-section {
            padding: 100px 0;
            background: var(--white);
        }

        .platform-content {
            margin-top: 50px;
        }

        .platform-image {
            border-radius: var(--border-radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .platform-info {
            padding-left: 30px;
        }

        .platform-info h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .platform-info p {
            color: var(--text-gray);
            margin-bottom: 20px;
            line-height: 1.8;
        }

        /* ========== Features Section ========== */
        .features-section {
            padding: 100px 0;
            background: var(--bg-light);
        }

        .features-tabs {
            margin-top: 50px;
        }

        .nav-pills .nav-link {
            color: var(--text-gray);
            background: transparent;
            border: 2px solid var(--text-gray);
            border-radius: 50px;
            padding: 12px 28px;
            margin: 0 8px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .nav-pills .nav-link.active {
            background: var(--gradient-primary);
            color: var(--white);
            border-color: var(--primary-color);
        }

        .nav-pills .nav-link:hover {
            color: var(--primary-color);
            border-color: var(--primary-color);
        }

        .filter-buttons {
            display: flex !important;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
            width: 100%;
        }

        .filter-btn {
            display: inline-block !important;
            padding: 10px 24px;
            border: 2px solid #e5e7eb;
            background: var(--white);
            border-radius: 50px;
            color: var(--text-gray);
            font-weight: 600;
            font-family: 'Cairo', sans-serif;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .filter-btn:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
        }

        .filter-btn.active {
            background: var(--gradient-primary);
            border-color: var(--primary-color);
            color: var(--white);
        }

        .feature-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            height: 100%;
            transition: all 0.3s ease;
            border: 1px solid #e5e7eb;
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary-color);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }

        .feature-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

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

        /* ========== How It Works Section ========== */
        .how-it-works-section {
            padding: 100px 0;
            background: var(--white);
        }

        .process-timeline {
            margin-top: 60px;
            position: relative;
        }

        .process-steps {
            margin-bottom: 40px;
        }

        .process-step {
            position: relative;
            padding: 0 15px;
        }

        .step-number {
            width: 50px;
            height: 50px;
            background: var(--gradient-primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 20px;
        }

        .step-content {
            text-align: center;
            padding: 0 15px;
        }

        .step-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 15px;
        }

        .step-content p {
            color: var(--text-gray);
            line-height: 1.6;
        }

        /* ========== Mission & Vision Section ========== */
        .mission-vision-section {
            padding: 100px 0;
            background: var(--bg-light);
        }

        .mission-vision-card {
            background: var(--white);
            border-radius: var(--border-radius-lg);
            padding: 40px;
            height: 100%;
            box-shadow: var(--shadow-md);
            transition: all 0.3s ease;
        }

        .mission-vision-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-xl);
        }

        .card-icon {
            width: 70px;
            height: 70px;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 25px;
        }

        .mission-vision-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
        }

        .mission-vision-card p {
            color: var(--text-gray);
            margin-bottom: 15px;
            line-height: 1.8;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-light);
        }

        .cta-wrapper {
            background: var(--gradient-primary);
            border-radius: var(--border-radius-lg);
            padding: 60px;
            color: var(--white);
        }

        .cta-wrapper h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-wrapper p {
            opacity: 0.9;
            font-size: 1.1rem;
        }

        .cta-wrapper .btn-light {
            background: var(--white);
            color: var(--primary-color);
            font-weight: 600;
            padding: 14px 30px;
            border-radius: 50px;
        }

        .cta-wrapper .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* ========== Footer ========== */
        .footer {
            background: var(--text-dark);
            color: var(--white);
            padding: 80px 0 30px;
        }

        .footer-brand {
            font-size: 1.8rem;
            font-weight: 800;
            display: inline-block;
            margin-bottom: 20px;
        }

        .footer-brand .brand-bsu {
            color: var(--primary-light);
        }

        .footer-brand .brand-tech {
            color: var(--white);
        }

        .footer-desc {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 25px;
        }

        .social-links {
            display: flex;
            gap: 12px;
        }

        .social-links a {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            background: var(--primary-color);
            transform: translateY(-3px);
        }

        .footer h5 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 25px;
            color: var(--white);
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: var(--text-light);
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--primary-light);
            padding-right: 5px;
        }

        .footer-contact {
            list-style: none;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

        .footer-contact i {
            color: var(--primary-light);
            margin-top: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 50px;
            padding-top: 30px;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        /* ========== Text Content Decorative Shapes ========== */
        .text-shape {
            position: absolute;
            border-radius: 50%;
            opacity: 0.1;
            z-index: 0;
        }

        .text-shape-1 {
            width: 80px;
            height: 80px;
            background: #6366f1;
            top: -40px;
            left: 5%;
            animation: float 7s ease-in-out infinite;
        }

        .text-shape-2 {
            width: 60px;
            height: 60px;
            background: #8b5cf6;
            top: 30%;
            right: -50px;
            animation: pulse 5s ease-in-out infinite;
        }

        .text-shape-3 {
            width: 70px;
            height: 70px;
            background: #a78bfa;
            bottom: 25%;
            left: -60px;
            animation: float 6s ease-in-out infinite reverse;
        }

        /* ========== Hero Decorative Shapes ========== */
        .hero-shape {
            position: absolute;
            border-radius: 50%;
            opacity: 0.15;
            z-index: 0;
        }

        .shape-top-left {
            width: 80px;
            height: 80px;
            background: #6366f1;
            top: -40px;
            left: 10%;
            animation: float 6s ease-in-out infinite;
        }

        .shape-bottom-right {
            width: 70px;
            height: 70px;
            background: #6366f1;
            bottom: -40px;
            right: 10%;
            animation: float 8s ease-in-out infinite reverse;
        }

        /* ========== Keyframe Animations ========== */
        @keyframes float {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-20px);
            }
        }

        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
                opacity: 0.15;
            }
            50% {
                transform: scale(1.2);
                opacity: 0.25;
            }
        }

        /* ========== Animation classes ========== */
        .animate-in {
            opacity: 1 !important;
            transform: translateY(0) !important;
        }

        /* ========== Responsive ========== */
        @media (max-width: 991px) {
            .hero-title {
                font-size: 2.5rem;
            }
            
            .hero-image {
                margin-top: 50px;
            }
            
            .hero-circle {
                width: 300px;
                height: 300px;
            }
            
            .nav-buttons {
                margin-top: 20px;
                display: flex;
                gap: 10px;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .cta-wrapper {
                padding: 40px 30px;
                text-align: center;
            }
            
            .cta-wrapper .text-lg-end {
                text-align: center !important;
                margin-top: 20px;
            }
            
            .platform-info {
                padding-left: 0;
                margin-top: 30px;
            }
            
            .nav-pills .nav-link {
                margin-bottom: 10px;
            }
            
            .process-step {
                margin-bottom: 40px;
            }
        }

        @media (max-width: 767px) {
            .hero-section {
                padding: 120px 0 80px;
            }
            
            .hero-title {
                font-size: 2rem;
            }
            
            .hero-circle {
                width: 250px;
                height: 250px;
            }
            
            .main-hero-img {
                max-width: 280px;
            }
            
            .platform-overview-section,
            .features-section,
            .how-it-works-section,
            .mission-vision-section {
                padding: 60px 0;
            }
            
            .feature-card,
            .mission-vision-card {
                padding: 25px;
            }
            
            .cta-wrapper h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 576px) {
            .hero-section {
                padding: 70px 0 30px;
                min-height: auto;
            }

            .hero-section .row {
                flex-direction: column-reverse;
            }

            .hero-section .col-lg-6 {
                width: 100% !important;
                max-width: 100%;
            }

            .hero-content {
                margin-bottom: 20px;
            }

            .hero-image {
                margin-top: 0;
                margin-bottom: 20px;
            }

            .hero-title {
                font-size: 1.5rem;
                margin-bottom: 10px;
                line-height: 1.2;
            }

            .hero-description {
                font-size: 0.85rem;
                margin-bottom: 12px;
                max-width: 100%;
                line-height: 1.5;
            }
            
            .hero-buttons {
                flex-direction: column;
                gap: 8px;
            }
            
            .hero-buttons .btn-lg {
                width: 100%;
                text-align: center;
                padding: 10px 16px;
                font-size: 12px;
            }

            .hero-circle {
                width: 200px;
                height: 200px;
            }

            .main-hero-img {
                max-width: 240px;
                height: 240px;
            }

            .hero-img-wrapper {
                justify-content: center;
            }
            
            .section-title {
                font-size: 1.6rem;
                margin-bottom: 10px;
            }

            .section-badge {
                font-size: 0.8rem;
                padding: 6px 16px;
            }

            .section-desc {
                font-size: 0.95rem;
            }

            .platform-overview-section,
            .features-section,
            .how-it-works-section,
            .mission-vision-section {
                padding: 40px 0;
            }

            .platform-content {
                margin-top: 30px;
            }

            .platform-info {
                padding-left: 0;
                margin-top: 20px;
            }

            .platform-info h3 {
                font-size: 1.3rem;
                margin-bottom: 15px;
            }

            .platform-info p {
                font-size: 0.95rem;
                margin-bottom: 15px;
            }

            .feature-card,
            .mission-vision-card {
                padding: 20px;
                margin-bottom: 15px;
            }

            .feature-icon,
            .card-icon {
                width: 50px;
                height: 50px;
                font-size: 1.3rem;
                margin-bottom: 15px;
            }

            .feature-card h4,
            .mission-vision-card h3 {
                font-size: 1.1rem;
                margin-bottom: 10px;
            }

            .feature-card p,
            .mission-vision-card p {
                font-size: 0.9rem;
                line-height: 1.5;
            }

            .nav-pills {
                flex-wrap: wrap;
                gap: 8px;
            }

            .nav-pills .nav-link {
                padding: 8px 16px;
                font-size: 0.9rem;
                margin: 0;
            }

            .step-number {
                width: 45px;
                height: 45px;
                font-size: 1.1rem;
                margin-bottom: 15px;
            }

            .step-content h3 {
                font-size: 1.1rem;
                margin-bottom: 10px;
            }

            .step-content p {
                font-size: 0.9rem;
            }

            .process-step {
                padding: 0 10px;
                margin-bottom: 30px;
            }

            .cta-section {
                padding: 40px 0;
            }

            .cta-wrapper {
                padding: 25px 15px;
            }

            .cta-wrapper h2 {
                font-size: 1.4rem;
                margin-bottom: 10px;
            }

            .cta-wrapper p {
                font-size: 0.95rem;
                margin-bottom: 15px;
            }

            .cta-wrapper .btn-light {
                padding: 10px 20px;
                font-size: 13px;
                width: 100%;
            }

            .footer {
                padding: 40px 0 20px;
            }

            .footer-brand {
                font-size: 1.4rem;
            }

            .footer h5 {
                font-size: 1rem;
                margin-bottom: 15px;
            }

            .footer-links li,
            .footer-contact li {
                margin-bottom: 10px;
                font-size: 0.9rem;
            }

            .footer-bottom {
                margin-top: 40px;
                padding-top: 30px;
            }

            .footer-bottom p {
                font-size: 0.95rem;
            }
        }