:root {
    /* Light Theme Palette - "İç Açıcı" & Ferah */
    --bg-color: #f8fafc;
    /* Very light blue-grey */
    --bg-surface: #ffffff;
    --text-primary: #1e293b;
    /* Slate 800 */
    --text-secondary: #64748b;
    /* Slate 500 */

    --primary-color: #3b82f6;
    /* Blue 500 */
    --primary-hover: #2563eb;
    /* Blue 600 */
    --secondary-color: #8b5cf6;
    /* Violet 500 */
    --accent-color: #06b6d4;
    /* Cyan 500 */

    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.6);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.05);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    /* Soft, refreshing gradient background */
    background-image:
        radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 40%);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    /* Dark text for headings */
}

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

ul {
    list-style: none;
}

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

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-heading);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(59, 130, 246, 0.4);
}

.btn-outline {
    background: var(--bg-surface);
    border: 1px solid #e2e8f0;
    color: var(--text-primary);
}

.btn-outline:hover {
    background: #f1f5f9;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.section-padding {
    padding: 100px 0;
}

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

.text-gradient {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Glassmorphism / Cards */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--card-shadow);
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
    /* More opaque for light mode readability */
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

header.scrolled {
    padding: 15px 0;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--text-primary);
}

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

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    /* Slightly shorter */
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
    overflow: hidden;
    background: #fff;
    /* Start fresh */
    background: linear-gradient(180deg, #fff 0%, var(--bg-color) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    line-height: 1.1;
    color: #0f172a;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
    /* Soft shadow */
    animation: float 6s ease-in-out infinite;
    background: #fff;
    padding: 10px;
    /* Frame */
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: var(--bg-surface);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid #f1f5f9;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px -10px rgba(59, 130, 246, 0.15);
    border-color: #e2e8f0;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.feature-card p {
    color: var(--text-secondary);
}

/* Template Showcase - Live Editor Feature */
.template-showcase {
    background: #fff;
    position: relative;
}

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

.template-item {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    position: relative;
    /* group property removed as it is invalid CSS */
}

.template-item img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.template-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.1);
}

.template-item:hover img {
    transform: scale(1.05);
}

.template-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: #fff;
    opacity: 0;
    transition: var(--transition);
}

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

/* Performance Section - Live Editor Feature */
.live-editor-highlight {
    background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%);
    overflow: hidden;
}

.editor-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

@media (max-width: 968px) {
    .editor-split {
        grid-template-columns: 1fr;
    }
}

.stat-box {
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.pricing-card {
    background: var(--bg-surface);
    padding: 50px 30px;
    border-radius: 24px;
    border: 1px solid #e2e8f0;
    text-align: center;
    position: relative;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
}

.pricing-card.popular {
    background: #fff;
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
    z-index: 10;
    box-shadow: 0 20px 40px -10px rgba(59, 130, 246, 0.2);
}

.popular-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--primary-color);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.price {
    font-size: 3rem;
    font-weight: 800;
    margin: 20px 0;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.pricing-features {
    margin: 30px 0;
    text-align: left;
}

.pricing-features li {
    padding: 10px 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #f1f5f9;
}

.check {
    color: var(--primary-color);
    font-weight: bold;
}

/* Footer */
footer {
    background: #fff;
    padding: 80px 0 40px;
    margin-top: 100px;
    border-top: 1px solid #e2e8f0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links h4 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

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

.footer-links ul li a {
    color: var(--text-secondary);
}

.footer-links ul li a:hover {
    color: var(--primary-color);
}

.copyright {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #f1f5f9;
    color: var(--text-secondary);
}

/* Forms (for Contact Page) */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: #fff;
    padding: 50px;
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    border: 1px solid #f1f5f9;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    background: #f8fafc;
    font-family: var(--font-body);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Animations */
@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }

    100% {
        transform: translateY(0px);
    }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}