/* variables & reset */
:root {
    --primary-color: #0f172a; /* Slate 900 */
    --secondary-color: #3b82f6; /* Blue 500 */
    --text-color: #334155;
    --text-light: #64748b;
    --bg-color: #f8fafc;
    --white: #ffffff;
    --transition: all 0.3s ease;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

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

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

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

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

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--secondary-color);
    color: var(--white);
    border-radius: 8px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #2563eb;
    transform: translateY(-2px);
    color: var(--white);
}

/* Header */
.site-header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
}

.main-nav a {
    font-weight: 500;
    color: var(--text-color);
}

.main-nav a:hover {
    color: var(--secondary-color);
}

/* Slider Section */
.slider-section {
    position: relative;
    height: 600px;
    background-color: var(--primary-color);
    overflow: hidden;
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.slide::before {
    content: '';
    position: absolute;
    top:0; left:0; width:100%; height:100%;
    background: rgba(15, 23, 42, 0.6);
}

.slide.active {
    opacity: 1;
    z-index: 1;
}

.slide-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.slide-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    transform: translateY(20px);
    opacity: 0;
    animation: fadeInUp 0.8s forwards 0.3s;
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 30px;
    color: #e2e8f0;
    transform: translateY(20px);
    opacity: 0;
    animation: fadeInUp 0.8s forwards 0.5s;
}

.slide-content .btn {
    transform: translateY(20px);
    opacity: 0;
    animation: fadeInUp 0.8s forwards 0.7s;
}

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

/* Common Section */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-light);
    font-size: 18px;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.service-img {
    height: 200px;
    overflow: hidden;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.service-card:hover .service-img img {
    transform: scale(1.1);
}

.service-body {
    padding: 30px;
}

.service-body h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.service-body p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.read-more {
    font-weight: 600;
    color: var(--secondary-color);
    display: inline-flex;
    align-items: center;
}

.read-more::after {
    content: '→';
    margin-left: 8px;
    transition: transform 0.3s;
}

.read-more:hover::after {
    transform: translateX(5px);
}

/* Service Areas Grid */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

@media (max-width: 992px) {
    .areas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .areas-grid {
        grid-template-columns: 1fr;
    }
}

.area-card {
    background: var(--white);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid #e2e8f0;
}

.area-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-5px);
}

.area-placeholder {
    font-size: 40px;
    margin-bottom: 20px;
}

.area-card img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
}

.area-content h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 20px;
}

.area-content p {
    color: var(--text-light);
    font-size: 15px;
}

/* Inner Pages */
.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 40px;
}

.page-content {
    background: var(--white);
    padding: 60px 0;
}

.page-main-img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 40px;
}

.content-body {
    max-width: 800px;
    margin: 0 auto;
    font-size: 18px;
    color: var(--text-color);
}

.content-body h2, .content-body h3 {
    margin: 30px 0 15px;
    color: var(--primary-color);
}

.content-body p {
    margin-bottom: 20px;
}

/* Footer */
.site-footer {
    background-color: var(--primary-color);
    color: #cbd5e1;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 20px;
}

.footer-col p {
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: #cbd5e1;
}

.social-links a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
}