:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #10b981;
            --secondary-dark: #0d9668;
            --accent: #f59e0b;
            --dark: #1e293b;
            --darker: #0f172a;
            --light: #f8fafc;
            --gray: #64748b;
            --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            --gradient-dark: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
        }

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--light);
            color: var(--dark);
            line-height: 1.6;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            font-family: 'Merriweather', serif;
            font-weight: 700;
        }

        .navbar {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
            padding: 0.8rem 0;
            transition: all 0.3s ease;
        }

        .navbar-scrolled {
            padding: 0.5rem 0;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .navbar-brand {
            color: var(--primary);
            font-weight: 700;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nav-link {
            font-weight: 500;
            color: var(--dark) !important;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary) !important;
        }

        .nav-link:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background: var(--gradient);
            transition: width 0.3s ease;
        }

        .nav-link:hover:after {
            width: 100%;
        }

        .btn-primary {
            background: var(--gradient);
            border: none;
            padding: 0.7rem 1.5rem;
            font-weight: 500;
            transition: all 0.3s ease-in-out;
        }

        .btn-primary:hover {
            background: var(--gradient-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(30, 64, 175, 0.2);
        }

        .section {
            padding: 6rem 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
        }

        .section-title:after {
            content: '';
            width: 70px;
            height: 4px;
            background: var(--gradient);
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            border-radius: 2px;
        }

        .hero {
            background: linear-gradient(rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.8)), url(../images/hero.png);
            /* background-repeat: no-repeat; */
             background-size: cover;
            background-position: center;
            padding: 8rem 0 6rem;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            flex-wrap: wrap;
            text-align: center;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.25rem;
            max-width: 700px;
            margin: 0 auto 2rem;
            color: var(--darker);
        }

        .tool-card {
            background: white;
            border-radius: 16px;
            padding: 2.5rem 2rem;
            text-align: center;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
            transition: all 0.3s ease;
            height: 100%;
            border: 1px solid rgba(0, 0, 0, 0.05);
            position: relative;
            overflow: hidden;
        }

        .tool-card:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 0;
            background: var(--gradient);
            transition: height 0.5s ease;
        }

        .tool-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }

        .tool-card:hover:before {
            height: 100%;
        }

        .tool-icon {
            font-size: 2.5rem;
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 1.5rem;
            display: inline-block;
        }

        .feature-box {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            height: 100%;
            transition: all 0.3s ease;
        }

        .feature-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .table th {
            background: var(--gradient);
            color: white;
            border: none;
            padding: 1rem;
        }

        .table td {
            padding: 1rem;
            vertical-align: middle;
        }

        .table tr:nth-child(even) {
            background-color: rgba(30, 64, 175, 0.05);
        }

        .accordion-button {
            font-weight: 600;
            padding: 1.2rem 1.25rem;
        }

        .accordion-button:not(.collapsed) {
            background: var(--gradient);
            color: white;
        }

        .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(30, 64, 175, 0.2);
        }

        .form-control {
            padding: 0.8rem 1rem;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .form-control:focus {
            box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
            border-color: var(--primary);
        }

        .footer {
            background: var(--darker);
            color: white;
            padding: 5rem 0 2rem;
        }

        .footer-title {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            position: relative;
            padding-bottom: 0.8rem;
        }

        .footer-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--gradient);
            border-radius: 2px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 0.8rem;
        }

        .footer-links a {
            color: #cbd5e1;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }

        .footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }

        .footer-newsletter input {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: white;
            padding: 0.8rem 1rem;
            border-radius: 8px;
            width: 100%;
        }

        .footer-newsletter input::placeholder {
            color: #94a3b8;
        }

        .footer-newsletter button {
            background: var(--gradient);
            border: none;
            color: white;
            padding: 0.8rem 1rem;
            border-radius: 8px;
            width: 100%;
            transition: all 0.3s ease;
        }

        .footer-newsletter button:hover {
            background: var(--gradient-dark);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            margin-top: 3rem;
        }

        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            margin-right: 0.8rem;
            transition: all 0.3s ease;
        }

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

        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            box-shadow: 0 5px 15px rgba(30, 64, 175, 0.3);
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s ease;
            z-index: 999;
        }

        .back-to-top.active {
            opacity: 1;
            visibility: visible;
              bottom: 30px;
            right: 30px;
        }

        .back-to-top:hover {
            background: var(--gradient-dark);
            transform: translateY(-3px);
              bottom: 30px;
            right: 30px;
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.5rem;
            }

            .section {
                padding: 4rem 0;
            }

            .footer-newsletter input,
            .footer-newsletter button {
                width: 100%;
                margin-bottom: 0.5rem;
            }
        }