:root {
    --primary-color: #008751; /* Bangladesh Green-ish */
    --primary-dark: #006a3e;
    --secondary-color: #f0fdf4;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius: 12px;
}

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

body {
    font-family: 'Inter', 'Hind Siliguri', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: #f9fafb;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #e5e7eb;
    padding: 16px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-logo {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-large {
    padding: 14px 28px;
    font-size: 1.1rem;
}

.btn-google-play {
    background-color: #000;
    color: #fff;
    border-radius: 8px;
}

.btn-google-play:hover {
    background-color: #333;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #ecfdf5 0%, #ffffff 100%);
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    display: inline-block;
    background-color: #d1fae5;
    color: var(--primary-dark);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero-headline {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #111827;
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 500px;
}

.phone-mockup {
    width: 100%;
    max-width: 320px;
    border-radius: 20px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border: 8px solid #fff;
    margin: 0 auto;
    display: block;
    transform: rotate(-5deg);
    transition: transform 0.5s ease;
}

.phone-mockup:hover {
    transform: rotate(0deg) scale(1.02);
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 60px;
    color: #111827;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: #fff;
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid #f3f4f6;
    transition: all 0.3s ease;
}

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

.icon-box {
    width: 60px;
    height: 60px;
    background-color: #ecfdf5;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: #111827;
}

.feature-card p {
    color: var(--text-light);
}

/* Screenshots Section */
.screenshots {
    padding: 80px 0;
    background-color: #f9fafb;
}

.screenshot-scroller {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding-bottom: 30px;
    scrollbar-width: thin;
}

.screenshot-scroller::-webkit-scrollbar {
    height: 8px;
}

.screenshot-scroller::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.screenshot-scroller::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}

.screenshot-scroller img {
    height: 400px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.screenshot-scroller img:hover {
    transform: scale(1.02);
}

/* Footer */
.footer {
    background-color: #1f2937;
    color: #f3f4f6;
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #fff;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-headline {
        font-size: 2.5rem;
    }

    .hero-subheadline {
        margin: 0 auto 30px;
    }

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