/* Sparrow XPL Corporate Theme for TwinShip Landing Page */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@400;500;600;700;800;900&display=swap');

:root {
    /* Sparrow XPL Brand Colors */
    --sparrow-green: #c4ff61;
    --sparrow-green-dark: #a6d649;
    --sparrow-green-light: #d4ff81;
    --sparrow-black: #000000;
    --sparrow-dark-gray: #1a1a1a;
    --sparrow-light-gray: #f5f5f5;
    
    /* Text colors */
    --text-white: #ffffff;
    --text-black: #000000;
    --text-gray: #666666;
    --text-light-gray: #999999;
    
    /* Background colors */
    --bg-green: var(--sparrow-green);
    --bg-black: var(--sparrow-black);
    --bg-dark: var(--sparrow-dark-gray);
    --bg-light: var(--sparrow-light-gray);
    --bg-white: #ffffff;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    /* Border radius */
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    
    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.2);
    --shadow-green: 0 4px 20px rgba(126, 211, 33, 0.3);
}

/* Global styles */
body, html {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-black);
    line-height: 1.6;
    scroll-behavior: smooth;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
}

section {
    padding: var(--spacing-xxl) 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles - Sparrow Green */
.sparrow-header {
    background: var(--bg-green);
    color: var(--text-black);
    padding: var(--spacing-sm) 0;
    position: relative;
    z-index: 1000;
}

.sparrow-header .navbar-brand {
    color: var(--text-black);
    text-decoration: none;
    font-weight: 800;
    font-size: 1.5rem;
}

.sparrow-header .navbar-brand:hover {
    color: var(--text-black);
}

.sparrow-header .nav-link {
    color: var(--text-black);
    font-weight: 500;
    text-decoration: none;
    margin: 0 var(--spacing-sm);
    transition: opacity 0.3s ease;
}

.sparrow-header .nav-link:hover {
    color: var(--text-black);
    opacity: 0.8;
}

/* Button Styles */
.btn-sparrow-green {
    display: inline-block;
    padding: 12px 30px;
    background: var(--bg-green);
    color: var(--text-black);
    border: none;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-green);
    margin-right: var(--spacing-sm);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-sparrow-green:hover {
    background: var(--sparrow-green-dark);
    color: var(--text-black);
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(126, 211, 33, 0.4);
}

.btn-sparrow-outline {
    display: inline-block;
    padding: 12px 30px;
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--bg-green);
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    margin-right: var(--spacing-sm);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-sparrow-outline:hover {
    background: var(--bg-green);
    color: var(--text-black);
    transform: translateY(-2px);
}

/* Hero Section */
.sparrow-hero-section {
    background: var(--bg-light);
    padding: var(--spacing-xxl) 0;
    text-align: center;
    position: relative;
}

.sparrow-hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--text-black);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.sparrow-hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.sparrow-hero-buttons {
    margin-top: var(--spacing-lg);
}

.sparrow-hero-image {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.sparrow-hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(var(--shadow-lg));
}

/* Dark Section Styles */
.sparrow-dark-section {
    background: var(--bg-black);
    color: var(--text-white);
    padding: var(--spacing-xxl) 0;
}

.sparrow-dark-section h2 {
    color: var(--text-white);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.sparrow-dark-section .section-subtitle {
    font-size: 1.1rem;
    color: #cccccc;
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Feature Cards */
.sparrow-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.sparrow-feature-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
}

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

.sparrow-feature-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    font-size: 2rem;
    color: var(--text-black);
}

.sparrow-feature-card h3 {
    font-size: 1.5rem;
    color: var(--text-black);
    margin-bottom: var(--spacing-sm);
}

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

/* CTA Section */
.sparrow-cta-section {
    background: var(--bg-black);
    color: var(--text-white);
    text-align: center;
    padding: var(--spacing-xxl) 0;
    position: relative;
}

.sparrow-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--bg-green);
}

.sparrow-cta-section h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.sparrow-cta-section p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #cccccc;
}

.sparrow-cta-buttons {
    margin-bottom: var(--spacing-lg);
}

.sparrow-cta-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.sparrow-cta-feature {
    display: flex;
    align-items: center;
    color: var(--bg-green);
    font-weight: 500;
}

.sparrow-cta-feature i {
    margin-right: var(--spacing-xs);
}

/* Footer */
.sparrow-footer {
    background: var(--bg-black);
    color: var(--text-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.sparrow-footer h5 {
    color: var(--bg-green);
    margin-bottom: var(--spacing-md);
}

.sparrow-footer a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.sparrow-footer a:hover {
    color: var(--bg-green);
}

.sparrow-footer-bottom {
    border-top: 1px solid #333;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    text-align: center;
    color: #666;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sparrow-hero-title {
        font-size: 2.5rem;
    }
    
    .sparrow-hero-subtitle {
        font-size: 1.1rem;
    }
    
    .sparrow-feature-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .sparrow-cta-features {
        flex-direction: column;
        align-items: center;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-lg) 0;
    }
}

@media (max-width: 576px) {
    .sparrow-hero-title {
        font-size: 2rem;
    }
    
    .btn-sparrow-green,
    .btn-sparrow-outline {
        display: block;
        margin: var(--spacing-sm) auto;
        max-width: 250px;
    }
}

/* Additional Utility Classes */
.text-center {
    text-align: center;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col, .col-md-6, .col-lg-4 {
    padding: 0 15px;
}

.col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
}

.col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
}

@media (max-width: 768px) {
    .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

@media (max-width: 992px) {
    .col-lg-4 {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

@media (max-width: 576px) {
    .col-lg-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}