/* ==========================================
   Store Group System Website
   Purple Masonry Layout Theme
   ========================================== */

:root {
    --primary-color: #8b5cf6;
    --secondary-color: #7c3aed;
    --accent-color: #a78bfa;
    --dark-color: #4c1d95;
    --light-color: #f5f3ff;
    --text-color: #1f2937;
    --border-color: #e9d5ff;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(139, 92, 246, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(139, 92, 246, 0.2);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-color);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   Header & Navigation
   ========================================== */

header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

nav a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark-color);
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 5rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   Masonry Layout Features
   ========================================== */

.features-section {
    padding: 4rem 0;
}

.features-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
}

.masonry-grid {
    column-count: 3;
    column-gap: 2rem;
}

.feature-card {
    break-inside: avoid;
    margin-bottom: 2rem;
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: inline-block;
    width: 100%;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-color);
    line-height: 1.8;
}

.feature-card ul {
    margin-top: 1rem;
    padding-left: 1.5rem;
}

.feature-card li {
    margin-bottom: 0.5rem;
}

/* ==========================================
   Stats Section
   ========================================== */

.stats {
    background: var(--white);
    padding: 3rem 0;
    margin: 3rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-color);
}

/* ==========================================
   CTA Section
   ========================================== */

.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
    margin-top: 4rem;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.contact-item::before {
    content: '●';
    font-size: 1.5rem;
}

/* ==========================================
   Footer
   ========================================== */

footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 1024px) {
    .masonry-grid {
        column-count: 2;
    }
}

@media (max-width: 768px) {
    .masonry-grid {
        column-count: 1;
    }

    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow);
    }

    nav ul.active {
        display: flex;
    }

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

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .contact-info {
        flex-direction: column;
        gap: 1rem;
    }
}