/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1e3a8a;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --text-dark: #0f172a;
    --text-medium: #475569;
    --text-light: #94a3b8;
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --border-light: #e2e8f0;
    --dark-bg: #0a1733;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #f1f5f9;
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* Page Wrapper */
.page-wrapper {
    min-height: 100vh;
    padding: 20px;
    background: #f1f5f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-white);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 48px;
    border-bottom: 1px solid var(--border-light);
    position: relative;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-line-1, .logo-line-2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
}

.nav-list {
    display: flex;
    gap: 36px;
    align-items: center;
}

.nav-link {
    color: var(--text-medium);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
    padding: 4px 0;
}

.nav-link:hover {
    color: var(--text-dark);
}

.nav-link.active {
    color: var(--text-dark);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -26px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

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

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

.nav-btn {
    padding: 10px 20px;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* About Section */
.about-section {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    padding: 60px 48px;
    align-items: center;
}

.about-content {
    animation: fadeInLeft 0.8s ease;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.page-title {
    font-size: 52px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.about-description {
    font-size: 17px;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 480px;
}

.about-features {
    list-style: none;
    margin-bottom: 36px;
}

.about-feature-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 8px 0;
    font-size: 16px;
    color: var(--text-dark);
    font-weight: 500;
    transition: transform 0.2s ease;
}

.about-feature-item:hover {
    transform: translateX(4px);
}

.check-icon {
    width: 24px;
    height: 24px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
    transition: all 0.2s ease;
}

.about-feature-item:hover .check-icon {
    transform: scale(1.15);
    background: var(--primary-dark);
}

.check-icon svg {
    width: 14px;
    height: 14px;
}

.btn-learn-more {
    padding: 12px 28px;
}

/* About Image */
.about-image {
    position: relative;
    animation: fadeInRight 0.8s ease;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.image-blob-top {
    position: absolute;
    top: -30px;
    right: -20px;
    width: 140px;
    height: 200px;
    background: var(--primary);
    border-radius: 0 0 0 60%;
    z-index: 1;
    opacity: 0.95;
    animation: blobFloat 6s ease-in-out infinite;
}

.image-blob-bottom {
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 130px;
    height: 110px;
    background: var(--primary);
    border-radius: 50% 0 0 0;
    z-index: 1;
    opacity: 0.95;
    animation: blobFloat 7s ease-in-out infinite reverse;
}

@keyframes blobFloat {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-8px) scale(1.02); }
}

.building-img {
    width: 100%;
    max-width: 540px;
    height: auto;
    aspect-ratio: 1/1;
    object-fit: cover;
    border-radius: 16px;
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    margin-left: auto;
    display: block;
}

/* About Stats Section */
.about-stats {
    margin: 0 48px 60px;
    padding: 40px 48px;
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    box-shadow: var(--shadow-sm);
}

.stat-box {
    text-align: center;
    padding: 0 12px;
    position: relative;
}

.stat-box:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 60%;
    background: var(--border-light);
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 15px;
    color: var(--text-medium);
    font-weight: 500;
}

/* Responsive */
@media (max-width: 1024px) {
    .header {
        padding: 20px 32px;
    }
    
    .nav-list {
        gap: 24px;
    }
    
    .about-section {
        padding: 48px 32px;
        gap: 40px;
    }
    
    .page-title {
        font-size: 40px;
    }
    
    .about-stats {
        margin: 0 32px 48px;
        padding: 32px 24px;
    }
    
    .stat-number {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .page-wrapper {
        padding: 10px;
    }
    
    .container {
        border-radius: 16px;
    }
    
    .header {
        padding: 16px 20px;
    }
    
    .nav, .nav-btn {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .about-section {
        grid-template-columns: 1fr;
        padding: 40px 24px;
        gap: 48px;
    }
    
    .page-title {
        font-size: 36px;
    }
    
    .about-description {
        font-size: 16px;
    }
    
    .about-features {
        margin-bottom: 28px;
    }
    
    .about-feature-item {
        font-size: 15px;
    }
    
    .building-img {
        max-width: 100%;
    }
    
    .image-blob-top {
        width: 100px;
        height: 150px;
    }
    
    .image-blob-bottom {
        width: 90px;
        height: 80px;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        margin: 0 24px 40px;
        padding: 28px 20px;
        gap: 20px;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .stat-box:nth-child(2)::after,
    .stat-box:nth-child(4)::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 30px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .stat-box::after {
        display: none !important;
    }
    
    .stat-box {
        padding: 12px 0;
        border-bottom: 1px solid var(--border-light);
    }
    
    .stat-box:last-child {
        border-bottom: none;
    }
}