@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@300;400;500;600;700;800;900&family=Noto+Sans+Bengali:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
    /* Green/Teal Color Scheme */
    --primary: #10b981;
    --primary-light: #34d399;
    --primary-dark: #059669;
    --secondary: #14b8a6;
    --accent: #06b6d4;
    --success: #22c55e;
    --warning: #f59e0b;

    /* Light Background */
    --bg-primary: #ffffff;
    --bg-secondary: #f0fdf4;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-glass: rgba(255, 255, 255, 0.8);

    /* Text */
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;

    /* Effects */
    --glow: 0 0 30px rgba(16, 185, 129, 0.3);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.1);

    --radius: 24px;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', 'Noto Sans Bengali', sans-serif;
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 50%, #d1fae5 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1rem 2rem;
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

/* Logo */
.logo {
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: 'Poppins', 'Noto Sans Bengali', sans-serif;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.02);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

.lang-switcher {
    display: flex;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.1);
    padding: 0.4rem;
    border-radius: 12px;
}

.lang-btn {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 500;
    font-size: 0.9rem;
}

.lang-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.mobile-menu-btn {
    display: none;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 1000px;
}

.hero-title {
    font-family: 'Poppins', 'Noto Sans Bengali', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.3rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

/* Demo Box */
.demo-box {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius);
    padding: 2rem;
    margin: 2rem auto;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
}

.demo-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.5rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.demo-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(16, 185, 129, 0.45);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: white;
    box-shadow: 0 8px 25px rgba(20, 184, 166, 0.35);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(20, 184, 166, 0.45);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), var(--primary));
    color: white;
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.35);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(34, 197, 94, 0.45);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Section Styling */
.section {
    padding: 6rem 2rem;
    position: relative;
}

.section-title {
    font-family: 'Poppins', 'Noto Sans Bengali', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 4rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(16, 185, 129, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 180px;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), var(--glow);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

/* Pricing Cards */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid rgba(16, 185, 129, 0.1);
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.2);
}

.popular-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.package-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.package-price {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.package-price .currency {
    font-size: 1.5rem;
    vertical-align: super;
}

.package-desc {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
    padding: 0;
}

.features-list li {
    padding: 0.6rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.features-list li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
}

.features-list li.disabled {
    color: var(--text-muted);
    opacity: 0.5;
}

.features-list li.disabled::before {
    content: '×';
    color: var(--text-muted);
}

/* Form */
.form-container {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    padding: 3rem;
    border-radius: var(--radius);
    border: 1px solid rgba(16, 185, 129, 0.1);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 1rem 1.25rem;
    background: #f9fafb;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

/* Footer */
.footer {
    background: #f9fafb;
    border-top: 1px solid #e5e7eb;
    padding: 3rem 2rem 1.5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
}

.footer-section p {
    color: var(--text-muted);
    line-height: 1.7;
}

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

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    padding: 0.3rem 0;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Utility */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--success);
    color: #166534;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
    color: #991b1b;
}

/* Spinner */
.spinner {
    border: 3px solid rgba(16, 185, 129, 0.2);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 35px;
    height: 35px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 6rem 0.5rem 3rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-description {
        font-size: 1rem;
        padding: 0 0.5rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .header {
        padding: 0.75rem 0.5rem;
    }

    .section {
        padding: 3rem 0.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .section-subtitle {
        font-size: 1rem;
        padding: 0 0.5rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        padding: 0 0.25rem;
    }

    .feature-card {
        padding: 1rem;
        min-height: 140px;
        border-radius: 12px;
    }

    .feature-icon {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .feature-name {
        font-size: 0.9rem;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        padding: 0 0.25rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .demo-box {
        margin: 1.5rem 0.25rem;
        padding: 1.5rem 1rem;
    }

    .demo-buttons {
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
        width: 100%;
    }

    .form-container {
        padding: 1.5rem;
        margin: 0 0.25rem;
    }

    .footer {
        padding: 2rem 0.5rem 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .container {
        padding: 0 0.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        padding: 0;
    }

    .feature-card {
        padding: 0.75rem;
        min-height: 120px;
        border-radius: 10px;
    }

    .feature-icon {
        font-size: 1.75rem;
    }

    .feature-name {
        font-size: 0.8rem;
    }

    .section {
        padding: 2rem 0.25rem;
    }

    .demo-box {
        margin: 1rem 0;
        padding: 1rem;
    }
}