/* --- CSS VARIABLES & RESET --- */
:root {
	--primary-color: #1a252f; /* Biru Gelap Professional */
	--secondary-color: #f39c12; /* Oranye Konstruksi/Energetic */
	--text-dark: #333333;
	--text-light: #666666;
	--white: #ffffff;
	--light-bg: #f4f7f6;
	--transition: all 0.3s ease;
	--container-width: 1200px;
}

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

html {
	scroll-behavior: smooth;
}

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

ul { list-style: none; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* --- LAYOUT UTILITIES --- */
.container {
	max-width: var(--container-width);
	margin: 0 auto;
	padding: 0 20px;
}

.section-padding {
	padding: 80px 0;
}

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

.section-title h2 {
	font-size: 2.5rem;
	color: var(--primary-color);
	margin-bottom: 15px;
	position: relative;
	display: inline-block;
}

.section-title h2::after {
	content: '';
	display: block;
	width: 60px;
	height: 4px;
	background: var(--secondary-color);
	margin: 10px auto 0;
	border-radius: 2px;
}

.section-title p {
	color: var(--text-light);
	max-width: 600px;
	margin: 0 auto;
}

/* --- BUTTONS --- */
.btn {
	display: inline-block;
	padding: 12px 30px;
	border-radius: 5px;
	font-weight: 600;
	transition: var(--transition);
	cursor: pointer;
	border: none;
	font-size: 1rem;
}

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

.btn-primary:hover {
	background-color: #d68910;
	transform: translateY(-2px);
	box-shadow: 0 5px 15px rgba(243, 156, 18, 0.3);
}

.btn-outline {
	border: 2px solid var(--white);
	color: var(--white);
	background: transparent;
}

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

/* --- HEADER & NAV --- */
header {
	background-color: var(--white);
	box-shadow: 0 2px 10px rgba(0,0,0,0.1);
	position: sticky;
	top: 0;
	z-index: 1000;
}

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

.logo {
	font-size: 1.5rem;
	font-weight: 700;
	color: var(--primary-color);
	display: flex;
	align-items: center;
	gap: 10px;
}

.logo i { color: var(--secondary-color); }

.nav-links {
	display: flex;
	gap: 30px;
}

.nav-links a {
	font-weight: 500;
	color: var(--primary-color);
	transition: var(--transition);
}

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

.menu-toggle {
	display: none;
	font-size: 1.5rem;
	cursor: pointer;
	color: var(--primary-color);
}

/* --- HERO SECTION --- */
.hero {
	height: 90vh; /* Hampir full screen */
	background: linear-gradient(rgba(26, 37, 47, 0.7), rgba(26, 37, 47, 0.7)), 
				url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80');
	background-size: cover;
	background-position: center;
	display: flex;
	align-items: center;
	text-align: center;
	color: var(--white);
}

.hero-content h1 {
	font-size: 3.5rem;
	margin-bottom: 20px;
	line-height: 1.2;
}

.hero-content p {
	font-size: 1.2rem;
	margin-bottom: 30px;
	opacity: 0.9;
	max-width: 800px;
	margin-left: auto;
	margin-right: auto;
}

.hero-buttons {
	display: flex;
	gap: 15px;
	justify-content: center;
}

/* --- STATS SECTION --- */
.stats {
	background-color: var(--secondary-color);
	padding: 40px 0;
	color: var(--white);
	margin-top: -50px; /* Overlap effect */
	position: relative;
	z-index: 10;
	border-radius: 8px;
	box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.stats-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	text-align: center;
	gap: 20px;
}

.stat-item h3 {
	font-size: 2.5rem;
	font-weight: 700;
}

.stat-item p {
	font-size: 1rem;
	opacity: 0.9;
}

/* --- ABOUT SECTION --- */
.about-content {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 50px;
	align-items: center;
}

.about-img {
	position: relative;
}

.about-img img {
	border-radius: 10px;
	box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.about-text h3 {
	font-size: 1.8rem;
	color: var(--primary-color);
	margin-bottom: 20px;
}

.about-text p {
	margin-bottom: 20px;
	color: var(--text-light);
	text-align: justify;
}

.feature-list li {
	margin-bottom: 10px;
	display: flex;
	align-items: center;
	gap: 10px;
}

.feature-list i {
	color: var(--secondary-color);
}

/* --- SERVICES SECTION --- */
.services {
	background-color: var(--light-bg);
}

.services-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
	gap: 30px;
}

.service-card {
	background: var(--white);
	padding: 40px 30px;
	border-radius: 10px;
	transition: var(--transition);
	text-align: center;
	border-bottom: 4px solid transparent;
	box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.service-card:hover {
	transform: translateY(-10px);
	border-bottom: 4px solid var(--secondary-color);
	box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.service-icon {
	font-size: 3rem;
	color: var(--secondary-color);
	margin-bottom: 20px;
}

.service-card h3 {
	margin-bottom: 15px;
	color: var(--primary-color);
}

/* --- PROJECTS/PORTFOLIO SECTION --- */
.projects-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
	gap: 20px;
}

.project-item {
	position: relative;
	overflow: hidden;
	border-radius: 10px;
	height: 250px;
}

.project-item img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: var(--transition);
}

.project-overlay {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(26, 37, 47, 0.8);
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	opacity: 0;
	transition: var(--transition);
	color: var(--white);
}

.project-item:hover .project-overlay {
	opacity: 1;
}

.project-item:hover img {
	transform: scale(1.1);
}

/* --- CONTACT SECTION --- */
.contact {
	background-color: var(--light-bg);
}

.contact-wrapper {
	display: grid;
	grid-template-columns: 1fr 1.5fr;
	gap: 50px;
	background: var(--white);
	padding: 50px;
	border-radius: 10px;
	box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.contact-info h3 {
	color: var(--primary-color);
	margin-bottom: 20px;
}

.info-item {
	display: flex;
	align-items: flex-start;
	gap: 15px;
	margin-bottom: 25px;
}

.info-item i {
	font-size: 1.2rem;
	color: var(--secondary-color);
	margin-top: 5px;
}

.contact-form .form-group {
	margin-bottom: 20px;
}

.contact-form input, 
.contact-form textarea {
	width: 100%;
	padding: 15px;
	border: 1px solid #ddd;
	border-radius: 5px;
	font-family: inherit;
	outline: none;
	transition: var(--transition);
}

.contact-form input:focus, 
.contact-form textarea:focus {
	border-color: var(--secondary-color);
}

/* --- FOOTER --- */
footer {
	background-color: var(--primary-color);
	color: var(--white);
	padding: 60px 0 20px;
}

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

.footer-col h4 {
	font-size: 1.2rem;
	margin-bottom: 20px;
	position: relative;
	padding-bottom: 10px;
}

.footer-col h4::after {
	content: '';
	position: absolute;
	left: 0;
	bottom: 0;
	width: 40px;
	height: 2px;
	background: var(--secondary-color);
}

.footer-links li {
	margin-bottom: 10px;
}

.footer-links a {
	color: #ccc;
	transition: var(--transition);
}

.footer-links a:hover {
	color: var(--secondary-color);
	padding-left: 5px;
}

.social-links a {
	display: inline-flex;
	justify-content: center;
	align-items: center;
	width: 40px;
	height: 40px;
	background: rgba(255,255,255,0.1);
	color: var(--white);
	border-radius: 50%;
	margin-right: 10px;
	transition: var(--transition);
}

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

.copyright {
	text-align: center;
	padding-top: 20px;
	border-top: 1px solid rgba(255,255,255,0.1);
	color: #888;
	font-size: 0.9rem;
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 768px) {
	.hero-content h1 { font-size: 2.5rem; }
	.nav-links {
		position: absolute;
		top: 80px;
		left: 0;
		width: 100%;
		background: var(--white);
		flex-direction: column;
		align-items: center;
		padding: 20px 0;
		box-shadow: 0 5px 10px rgba(0,0,0,0.1);
		display: none;
	}
	.nav-links.active { display: flex; }
	.menu-toggle { display: block; }
	
	.about-content { grid-template-columns: 1fr; }
	.stats-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
	.contact-wrapper { grid-template-columns: 1fr; padding: 30px; }
}