/* ==================== GLOBAL STYLES ==================== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        /* body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
            min-height: 100vh;
            padding: 0;
            margin: 0;
            overflow-x: hidden;
        } */

        .demo-container {
            padding: 40px 20px;
            min-height: 100vh;
        }        /* ==================== ADVANCED NAVIGATION BAR ==================== */        .navbar-container {
            position: fixed;
            top: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 60px);
            max-width: 1000px;
            transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .navbar {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            padding: 12px 25px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 
                0 20px 40px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
            transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            position: relative;
            overflow: hidden;
        }

        .navbar::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, 
                transparent, 
                rgba(255, 255, 255, 0.1), 
                transparent);
            transition: left 0.8s ease;
        }

        .navbar:hover::before {
            left: 100%;
        }

        .navbar:hover {
            transform: translateY(-2px);
            box-shadow: 
                0 25px 50px rgba(0, 0, 0, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.3);
        }

        /* ==================== LOGO SECTION ==================== */
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: white;
            font-weight: 700;
            font-size: 1.4rem;
            z-index: 2;
            position: relative;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            /* background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
            border-radius: 50%; */
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            /* box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2); */
        }

        .logo-icon::before {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            /* background: rgba(255, 255, 255, 0.9);
            border-radius: 50%; */
            animation: logo-pulse 2s ease-in-out infinite;
        }

        @keyframes logo-pulse {
            0%, 100% { transform: scale(1); opacity: 0.8; }
            50% { transform: scale(1.2); opacity: 1; }
        }

        .brand-text {
            background: linear-gradient(135deg, #ffffff, #f0f0f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }        /* ==================== NAVIGATION LINKS ==================== */
        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 5px;
            list-style: none;
            z-index: 2;
            position: relative;
        }

        /* Desktop navigation styles */
        @media (min-width: 993px) {
            .navbar-nav {
                display: flex !important;
                position: static !important;
                opacity: 1 !important;
                visibility: visible !important;
                transform: none !important;
                background: none !important;
                border: none !important;
                padding: 0 !important;
                box-shadow: none !important;
                flex-direction: row !important;
            }
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            text-decoration: none;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 0.9rem;
            border-radius: 25px;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            position: relative;
            overflow: hidden;
            white-space: nowrap;
        }

        .nav-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
            border-radius: 25px;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .nav-link:hover::before {
            opacity: 1;
        }

        .nav-link:hover {
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .nav-link.active {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
            color: white;
            box-shadow: 
                inset 0 1px 0 rgba(255, 255, 255, 0.3),
                0 4px 12px rgba(0, 0, 0, 0.1);
        }        .nav-icon {
            width: 16px;
            height: 16px;
            fill: currentColor;
            transition: transform 0.3s ease;
        }

        .nav-link:hover .nav-icon {
            transform: scale(1.1);
        }

        /* ==================== MOBILE MENU TOGGLE ==================== */        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: all 0.3s ease;
            z-index: 1001;
            position: relative;
            flex-shrink: 0;
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: scale(1.1);
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 4px;
            width: 24px;
            height: 18px;
            justify-content: center;
        }

        .hamburger span {
            width: 24px;
            height: 2px;
            background: white;
            border-radius: 2px;
            transition: all 0.3s ease;
            display: block;
        }

        .mobile-toggle.active .hamburger span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }

        .mobile-toggle.active .hamburger span:nth-child(2) {
            opacity: 0;
            transform: translateX(-20px);
        }

        .mobile-toggle.active .hamburger span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }        /* ==================== CTA BUTTON ==================== */
        .cta-button {
            background: linear-gradient(135deg, #ff6b6b, #ee5a52);
            color: white;
            text-decoration: none;
            padding: 10px 20px;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 8px 20px rgba(255, 107, 107, 0.3);
            transition: all 0.3s ease;
            white-space: nowrap;
            margin-left: 5px;
        }

        .cta-button:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 20px rgba(255, 107, 107, 0.4);
        }/* ==================== MOBILE RESPONSIVE ==================== */
        @media (max-width: 992px) {
            .navbar-container {
                top: 20px;
                width: calc(100% - 30px);
            }

            .navbar {
                padding: 12px 20px;
                position: relative;
            }

            .mobile-toggle {
                display: flex !important;
                align-items: center;
                justify-content: center;
            }

            /* Hide desktop navigation on mobile */
            .navbar-nav {
                display: none;
            }

            .brand-text {
                font-size: 1.2rem;
            }
        }

        /* Mobile Menu Overlay */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            z-index: 1500;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .mobile-menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* Mobile Menu Container */
        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            z-index: 1600;
            transform: translateY(-100%);
            transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            overflow-y: auto;
        }

        .mobile-menu.active {
            transform: translateY(0);
        }

        /* Mobile Menu Header */
        .mobile-menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 30px 30px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .mobile-menu-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: white;
            font-weight: 700;
            font-size: 1.4rem;
        }

        .mobile-menu-close {
            background: none;
            border: none;
            color: white;
            font-size: 2rem;
            cursor: pointer;
            padding: 8px;
            border-radius: 50%;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
        }

        .mobile-menu-close:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: scale(1.1);
        }

        /* Mobile Menu Navigation */
        .mobile-menu-nav {
            padding: 40px 30px;
            list-style: none;
        }

        .mobile-menu-item {
            margin-bottom: 8px;
        }

        .mobile-menu-link {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            text-decoration: none;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            font-size: 1.1rem;
            border-radius: 20px;
            transition: all 0.3s ease;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 12px;
        }

        .mobile-menu-link:hover,
        .mobile-menu-link.active {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            transform: translateX(8px);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .mobile-menu-icon {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .mobile-cta {
            margin: 30px 30px 40px;
        }

        .mobile-cta-button {
            display: block;
            width: 100%;
            background: linear-gradient(135deg, #ff6b6b, #ee5a52);
            color: white;
            text-decoration: none;
            padding: 20px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 1.1rem;
            text-align: center;
            box-shadow: 0 10px 30px rgba(255, 107, 107, 0.3);
            transition: all 0.3s ease;
        }

        .mobile-cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 40px rgba(255, 107, 107, 0.4);
        }

        @media (max-width: 768px) {
            .navbar-container {
                width: calc(100% - 30px);
            }
        }

        @media (max-width: 480px) {
            .navbar-container {
                width: calc(100% - 20px);
                top: 15px;
            }

            .navbar {
                padding: 10px 15px;
            }

            .navbar-brand {
                gap: 8px;
            }

            .logo-icon {
                width: 35px;
                height: 35px;
            }

            .brand-text {
                font-size: 1.1rem;
            }
        }        /* ==================== DEMO CONTENT ==================== */
        .demo-content {
            margin-top: 120px;
            text-align: center;
            color: white;
            padding: 40px 20px;
        }

        .demo-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff, #f0f0f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }

        .demo-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.6;
        }        /* ==================== CONTENT SECTIONS ==================== */
        .content-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            padding: 100px 20px 40px;
            text-align: center;
            color: white;
            position: relative;
        }        /* Add extra spacing for home section */
        #home {
            padding-top: 200px;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff, #f0f0f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            font-size: 1.1rem;
            opacity: 0.8;
            max-width: 600px;
            line-height: 1.6;
            margin-bottom: 40px;
        }        #home {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
            padding-top: 200px;
        }

        #about {
            background: linear-gradient(135deg, #2d1b69 0%, #11998e 50%, #38ef7d 100%);
        }

        #services {
            background: linear-gradient(135deg, #134e5e 0%, #71b280 50%, #2d3748 100%);
        }

        #portfolio {
            background: linear-gradient(135deg, #4a148c 0%, #6a1b9a 50%, #8e24aa 100%);
        }

        #contact {
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #1a202c 100%);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 60px;
            max-width: 1000px;
            margin-left: auto;
            margin-right: auto;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            transition: transform 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-10px);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
            border-radius: 50%;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .feature-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 15px;
        }

        .feature-description {
            opacity: 0.8;
            line-height: 1.5;
        }

        /* ==================== FLOATING ELEMENTS ==================== */
        .floating-elements {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
        }

        .floating-circle {
            position: absolute;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
            animation: float 6s ease-in-out infinite;
        }

        .floating-circle:nth-child(1) {
            width: 80px;
            height: 80px;
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .floating-circle:nth-child(2) {
            width: 120px;
            height: 120px;
            top: 60%;
            right: 15%;
            animation-delay: 2s;
        }

        .floating-circle:nth-child(3) {
            width: 60px;
            height: 60px;
            bottom: 20%;
            left: 20%;
            animation-delay: 4s;
        }        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(180deg); }
        }

        /* ==================== FOOTER ==================== */
        .footer {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 50px;
            margin: 30px auto 40px;
            padding: 25px 40px;
            max-width: 1000px;
            width: calc(100% - 60px);
            box-shadow: 
                0 20px 40px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
            position: relative;
            overflow: hidden;
        }

        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, 
                transparent, 
                rgba(255, 255, 255, 0.1), 
                transparent);
            transition: left 0.8s ease;
        }

        .footer:hover::before {
            left: 100%;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: white;
            position: relative;
            z-index: 2;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
            color: white;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .footer-logo {
            width: 35px;
            height: 35px;
            background: linear-gradient(135deg, #ff6b6b, #4ecdc4);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
        }

        .footer-logo::before {
            content: '';
            position: absolute;
            width: 16px;
            height: 16px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            animation: logo-pulse 2s ease-in-out infinite;
        }

        .footer-links {
            display: flex;
            gap: 30px;
            list-style: none;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            padding: 8px 0;
        }

        .footer-link:hover {
            color: white;
            transform: translateY(-1px);
        }

        .footer-social {
            display: flex;
            gap: 15px;
        }

        .social-link {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .social-link:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .social-icon {
            width: 18px;
            height: 18px;
            fill: currentColor;
        }

        .footer-copy {
            text-align: center;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.85rem;
        }

        @media (max-width: 768px) {
            .footer {
                width: calc(100% - 30px);
                padding: 20px 25px;
            }

            .footer-content {
                flex-direction: column;
                text-align: center;
                gap: 15px;
            }

            .footer-links {
                gap: 20px;
                flex-wrap: wrap;
                justify-content: center;
            }

            .footer-social {
                justify-content: center;
            }
        }        @media (max-width: 480px) {
            .footer {
                width: calc(100% - 20px);
                padding: 15px 20px;
            }

            .footer-links {
                gap: 15px;
            }
        }

        /* ==================== CONTACT FORM ==================== */
        .contact-form {
            max-width: 600px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 25px;
            padding: 40px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
        }

        .form-group {
            margin-bottom: 25px;
            position: relative;
        }

        .form-label {
            display: block;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 500;
            margin-bottom: 8px;
            font-size: 0.95rem;
        }

        .form-input,
        .form-textarea {
            width: 100%;
            padding: 15px 20px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 15px;
            color: white;
            font-size: 16px;
            outline: none;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            box-sizing: border-box;
        }

        .form-input::placeholder,
        .form-textarea::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .form-input:focus,
        .form-textarea:focus {
            border-color: rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
            font-family: inherit;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .submit-btn {
            width: 100%;
            padding: 15px 30px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 15px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
            position: relative;
            overflow: hidden;
        }

        .submit-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #764ba2, #667eea);
            transition: left 0.3s ease;
        }

        .submit-btn:hover::before {
            left: 0;
        }

        .submit-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
        }

        .submit-btn span {
            position: relative;
            z-index: 1;
        }

        @media (max-width: 768px) {
            .contact-form {
                padding: 30px 25px;
                margin: 0 20px;
            }

            .form-row {
                grid-template-columns: 1fr;
                gap: 15px;
            }
        }

        @media (max-width: 480px) {
            .contact-form {
                padding: 25px 20px;
                margin: 0 10px;
            }
        }