/* Variables */
:root {
	--primary-blue: #2980b9; /* Main button, active link */
	--secondary-blue: #3498db; /* Hover, accents */
	--dark-text: #2c3e50; /* Headings, strong text */
	--medium-text: #666; /* Body text */
	--light-bg: #f8f9fa; /* Section backgrounds */
	--white: #ffffff;
	--border-color: #e0e0e0;
	--footer-bg: #2c3e50;
	--footer-text: #ecf0f1;
	--footer-border: #34495e;
}

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

body {
	font-family: "Open Sans", sans-serif;
	line-height: 1.6;
	color: var(--medium-text);
	background-color: var(--white);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
	font-family: "Montserrat", sans-serif;
	color: var(--dark-text);
	line-height: 1.2;
	margin-bottom: 0.5em;
}

h1 {
	font-size: 2.5rem;
}
h2 {
	font-size: 2rem;
}
h3 {
	font-size: 1.5rem;
}

a {
	color: var(--primary-blue);
	text-decoration: none;
	transition: color 0.3s ease;
}

a:hover {
	color: var(--secondary-blue);
}

/* Buttons */
.btn {
	display: inline-block;
	padding: 12px 25px;
	border-radius: 5px;
	font-weight: 600;
	text-align: center;
	transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
	cursor: pointer;
	border: none;
}

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

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

.btn-secondary {
	background-color: white;
	color: var(--primary-blue);
	border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
	background-color: white;
	color: black;
}

/* Header */
.header {
	background-color: var(--white);
	padding: 20px 0;
	border-bottom: 1px solid var(--border-color);
	position: sticky;
	top: 0;
	z-index: 1000;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

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

.logo {
	font-size: 1.8rem;
	font-weight: 700;
	margin: 0;
}

.logo a {
	color: var(--dark-text);
}

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

.main-nav a {
	color: var(--dark-text);
	font-weight: 600;
	padding: 5px 0;
	position: relative;
}

.main-nav a::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: -5px;
	width: 0;
	height: 2px;
	background-color: var(--primary-blue);
	transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
	width: 100%;
}

.menu-toggle {
	display: none; /* Hidden on desktop */
	background: none;
	border: none;
	cursor: pointer;
	padding: 10px;
	z-index: 1001;
}

.menu-toggle span {
	display: block;
	width: 25px;
	height: 3px;
	background-color: var(--dark-text);
	margin-bottom: 5px;
	transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
	transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
	opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
	transform: translateY(-8px) rotate(-45deg);
}

/* Main Content Sections */
.main {
	padding-top: 0; /* Header is sticky, so no top padding needed */
}

.section-title {
	font-size: 2.5rem;
	text-align: center;
	margin-bottom: 20px;
	color: var(--dark-text);
}

.section-description {
	font-size: 1.1rem;
	text-align: center;
	max-width: 800px;
	margin: 0 auto 60px;
	color: var(--medium-text);
}

.hero-section {
	color: var(--white);
	text-align: center;
	padding: 120px 20px;
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 600px;
}

.hero-content {
	max-width: 900px;
}

.hero-title {
	font-size: 3.5rem;
	font-weight: 700;
	margin-bottom: 25px;
	color: var(--white);
}

.hero-description {
	font-size: 1.3rem;
	margin-bottom: 40px;
	line-height: 1.5;
	color: rgba(255, 255, 255, 0.9);
}

/* Page Hero (Hakkımızda, İletişim) */
.page-hero {
	background-color: var(--light-bg);
	padding: 80px 20px;
	text-align: center;
	border-bottom: 1px solid var(--border-color);
}

.page-title {
	font-size: 3rem;
	color: var(--dark-text);
	margin-bottom: 15px;
}

.page-description {
	font-size: 1.2rem;
	color: var(--medium-text);
	max-width: 700px;
	margin: 0 auto;
}

/* Services Section */
.services-section {
	padding: 80px 0;
	background-color: var(--white);
}

.services-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 30px;
}

.service-card {
	background-color: var(--light-bg);
	padding: 30px;
	border-radius: 8px;
	text-align: center;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
	transform: translateY(-10px);
	box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.service-icon {
	width: 60px;
	height: 60px;
	margin-bottom: 20px;
	filter: invert(25%) sepia(70%) saturate(2000%) hue-rotate(180deg) brightness(90%) contrast(90%); /* Blue tint */
}

.service-card h3 {
	font-size: 1.4rem;
	margin-bottom: 10px;
	color: var(--dark-text);
}

.service-card p {
	font-size: 0.95rem;
	color: var(--medium-text);
}

/* Call to Action Section */
.cta-section {
	background-color: var(--primary-blue);
	color: var(--white);
	text-align: center;
	padding: 80px 20px;
}

.cta-title {
	font-size: 2.8rem;
	color: var(--white);
	margin-bottom: 20px;
}

.cta-description {
	font-size: 1.2rem;
	margin-bottom: 40px;
	color: rgba(255, 255, 255, 0.9);
}

/* About Content Section */
.about-content-section {
	padding: 80px 0;
	background-color: var(--white);
}

.about-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 50px;
	align-items: center;
	margin-bottom: 60px;
}

.about-text h3 {
	font-size: 2rem;
	margin-bottom: 20px;
}

.about-text p {
	margin-bottom: 15px;
	line-height: 1.7;
}

.about-image {
	text-align: center;
}

.responsive-image {
	max-width: 100%;
	height: auto;
	border-radius: 8px;
	box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.values-section,
.team-section {
	margin-bottom: 60px;
}

.values-section h3,
.team-section h3 {
	text-align: center;
	margin-bottom: 40px;
	font-size: 2.2rem;
}

.value-item {
	background-color: var(--light-bg);
	padding: 30px;
	border-radius: 8px;
	margin-bottom: 20px;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.value-item h4 {
	font-size: 1.3rem;
	color: var(--primary-blue);
	margin-bottom: 10px;
}

.values-list {
	list-style: none;
	padding: 0;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 20px;
}

.values-list li {
	background-color: var(--light-bg);
	padding: 20px;
	border-radius: 8px;
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
	font-size: 1.05rem;
	color: var(--dark-text);
}

.values-list li strong {
	color: var(--primary-blue);
}

/* Contact Details Section (İletişim Page) */
.contact-details-section {
	padding: 80px 0;
	background-color: var(--white);
}

.contact-info-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
	gap: 30px;
	margin-bottom: 60px;
}

.info-card {
	background-color: var(--light-bg);
	padding: 30px;
	border-radius: 8px;
	text-align: center;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.info-icon {
	width: 50px;
	height: 50px;
	margin-bottom: 15px;
	filter: invert(25%) sepia(70%) saturate(2000%) hue-rotate(180deg) brightness(90%) contrast(90%); /* Blue tint */
}

.info-card h3 {
	font-size: 1.4rem;
	margin-bottom: 10px;
	color: var(--dark-text);
}

.info-card p {
	font-size: 1rem;
	color: var(--medium-text);
}

.info-card a {
	color: var(--primary-blue);
	font-weight: 600;
}

.map-container {
	margin-bottom: 60px;
	text-align: center;
}

.map-container h3 {
	font-size: 2rem;
	margin-bottom: 30px;
}

.map-container iframe {
	border-radius: 8px;
	box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Contact Form Section */
.contact-form-section {
	background-color: var(--light-bg);
	padding: 60px 40px;
	border-radius: 12px;
	margin-bottom: 60px;
	box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

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

.contact-form-section .section-description {
	margin-bottom: 40px;
}

.contact-form {
	max-width: 700px;
	margin: 0 auto;
}

.form-row {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	margin-bottom: 20px;
}

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

.form-group label {
	display: block;
	margin-bottom: 8px;
	font-weight: 600;
	color: var(--dark-text);
}

.form-group input,
.form-group textarea {
	width: 100%;
	padding: 12px 15px;
	border: 2px solid var(--border-color);
	border-radius: 6px;
	font-size: 1rem;
	transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
	outline: none;
	border-color: var(--primary-blue);
	box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.2);
}

.submit-btn {
	width: 100%;
	margin-top: 10px;
}

.form-message {
	margin-top: 20px;
	padding: 15px;
	border-radius: 6px;
	text-align: center;
	font-weight: 600;
	display: none;
	opacity: 0;
	transition: opacity 0.3s ease;
}

.form-message.show {
	display: block;
	opacity: 1;
}

.form-message.success {
	background-color: #d4edda;
	color: #155724;
	border: 1px solid #c3e6cb;
}

.form-message.error {
	background-color: #f8d7da;
	color: #721c24;
	border: 1px solid #f5c6cb;
}

/* Footer */
.footer {
	background-color: var(--footer-bg);
	color: var(--footer-text);
	padding: 50px 0 20px;
}

.footer-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 40px;
	margin-bottom: 30px;
}

.footer-col h3 {
	margin-bottom: 20px;
	font-size: 1.3rem;
	color: var(--white);
}

.footer-col p,
.footer-col ul {
	font-size: 0.95rem;
	line-height: 1.7;
}

.footer-col ul {
	list-style: none;
	padding: 0;
}

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

.footer-col ul li a {
	color: var(--footer-text);
	transition: color 0.3s ease;
}

.footer-col ul li a:hover {
	color: var(--secondary-blue);
}

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

.social-links img {
	width: 28px;
	height: 28px;
	filter: invert(100%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%) contrast(100%); /* White icons */
	transition: filter 0.3s ease;
}

.social-links a:hover img {
	filter: invert(60%) sepia(100%) saturate(2000%) hue-rotate(180deg) brightness(100%) contrast(100%); /* Blue tint on hover */
}

.footer-bottom {
	text-align: center;
	padding-top: 20px;
	border-top: 1px solid var(--footer-border);
	color: #bdc3c7;
	font-size: 0.9rem;
}

.footer-link {
	color: #ffffff;
	text-decoration: none;
	transition: color 0.3s ease;
	display: block;
	margin-bottom: 8px;
}

.footer-link:hover {
	color: #cccccc;
	text-decoration: underline;
}



/* Responsive Design */
@media (max-width: 992px) {
	.hero-title {
		font-size: 2.8rem;
	}
	.hero-description {
		font-size: 1.1rem;
	}
	.about-grid {
		grid-template-columns: 1fr;
	}
	.about-image {
		order: -1; /* Image above text on mobile */
		margin-bottom: 30px;
	}
}

@media (max-width: 768px) {
	.header-content {
		flex-wrap: wrap;
	}
	.logo {
		flex-grow: 1;
		text-align: left;
	}
	.main-nav {
		display: none; /* Hide by default on mobile */
		width: 100%;
		order: 3; /* Below logo and toggle */
		background-color: var(--white);
		box-shadow: 0 5px 10px rgba(0, 0, 0, 0.05);
		padding: 20px 0;
		margin-top: 10px;
	}
	.main-nav.active {
		display: block; /* Show when active */
	}
	.main-nav ul {
		flex-direction: column;
		gap: 15px;
		text-align: center;
	}
	.main-nav a {
		padding: 10px 0;
		display: block;
	}
	.main-nav a::after {
		display: none; /* Hide underline on mobile menu */
	}
	.menu-toggle {
		display: block; /* Show hamburger on mobile */
	}

	.hero-section {
		padding: 80px 20px;
		min-height: 500px;
	}
	.hero-title {
		font-size: 2.2rem;
	}
	.hero-description {
		font-size: 1rem;
	}
	.page-title {
		font-size: 2.5rem;
	}
	.page-description {
		font-size: 1.1rem;
	}
	.section-title {
		font-size: 2rem;
	}
	.section-description {
		font-size: 1rem;
		margin-bottom: 40px;
	}
	.services-grid,
	.contact-info-grid,
	.footer-grid {
		grid-template-columns: 1fr;
	}
	.service-card,
	.info-card {
		padding: 25px;
	}
	.cta-title {
		font-size: 2.2rem;
	}
	.cta-description {
		font-size: 1.1rem;
	}
	.contact-form-section {
		padding: 40px 20px;
	}
	.form-row {
		grid-template-columns: 1fr;
		gap: 0;
	}
	.footer-col {
		text-align: center;
	}
	.social-links {
		justify-content: center;
	}
}

@media (max-width: 480px) {
	h1 {
		font-size: 2rem;
	}
	h2 {
		font-size: 1.8rem;
	}
	h3 {
		font-size: 1.3rem;
	}
	.hero-section {
		padding: 60px 15px;
		min-height: 400px;
	}
	.hero-title {
		font-size: 1.8rem;
	}
	.hero-description {
		font-size: 0.9rem;
	}
	.btn {
		padding: 10px 20px;
		font-size: 0.9rem;
	}
	.page-hero {
		padding: 60px 15px;
	}
	.page-title {
		font-size: 2rem;
	}
	.section-title {
		font-size: 1.8rem;
	}
	.contact-form-section {
		padding: 30px 15px;
	}
}

.call-button {
	display: inline-flex;
	align-items: center;
	gap: 10px;
	background-color: #007bff;
	color: #fff;
	padding: 10px 18px;
	border-radius: 50px;
	text-decoration: none;
	font-weight: bold;
	font-size: 16px;
	transition: background-color 0.3s ease;
	animation: heartbeat 1.5s infinite;
}

.call-button:hover {
	background-color: #0056b3;
	color: #fff;
}

.call-button i {
	background-color: white;
	color: #007bff;
	border-radius: 50%;
	padding: 10px;
	width: 40px;
	height: 40px;
	text-align: center;
	line-height: 20px;
	font-size: 18px;
	animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
	0% {
		transform: scale(1);
	}
	25% {
		transform: scale(1.1);
	}
	50% {
		transform: scale(1);
	}
	75% {
		transform: scale(1.1);
	}
	100% {
		transform: scale(1);
	}
}