:root {
    --primary-color: #1a222d;
    --secondary-color: #1a222d;
    --accent-color: #ede1dd;
    --hover-color: #1a222d;
    --text-color: #2c3e50;
    --light-text: #6c757d;
    --background: #f5f5f5;
}

/* Global Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text-color);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--accent-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--primary-color);
}

.logo img {
    height: 35px;
    width: auto;
}

.logo span {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--hover-color) 100%);
    padding: 8rem 2rem 4rem;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    color: #ffffff; /* Beyaz metin */
}

.hero-content h1,
.hero-content p {
    color: #ffffff;
}

/* Features Section */
.features {
    padding: 5rem 2rem;
}

.feature-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-2px);
}

.feature-card i {
    font-size: 2.5rem;
    background: var(--accent-color);
    color: var(--primary-color);
    padding: 1rem;
    border-radius: 50%;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
}

/* App Download Section */
.app-download {
    padding: 4rem 2rem;
    background: #f8f9fa;
}

.app-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
}

.app-text {
    text-align: center;
    max-width: 600px;
}

.app-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.app-text h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: var(--text-color);
}

.app-text p {
    color: var(--light-text);
    margin-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.6;
}

.app-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    align-items: center;
    max-width: 500px;
    margin: 0 auto;
}

.app-btn {
    flex: 0 1 200px;
    padding: 1rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 12px;
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.app-btn:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
}

.app-btn i {
    font-size: 2rem;
    color: white;
}

.btn-text small {
    font-size: 0.7rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-text span {
    font-size: 1.1rem;
    font-weight: 600;
}

.phone-mockup {
    position: relative;
    max-width: 300px;
    margin: 0 auto;
}

.phone-mockup img {
    width: 100%;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* How It Works Section */
.how-it-works {
    padding: 5rem 2rem;
    text-align: center;
}

.how-it-works h2 {
    margin-bottom: 3rem;
    color: var(--text-color);
}

.steps-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.step:hover {
    transform: translateY(-2px);
}

.step-number {
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo span {
    font-size: 1.2rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: color 0.3s ease, opacity 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-color);
    opacity: 1;
}

/* Utility Overrides for Dark Backgrounds */
.hero-content,
.hero-content h1,
.hero-content p,
.app-btn i,
.login-btn i {
    color: white;
}

.feature-card i {
    background: var(--accent-color);
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero { padding: 6rem 2rem 4rem; }
    .features { padding: 4rem 2rem; }
    .app-download { padding: 2rem 1rem; }
    .app-text h2 { font-size: 1.8rem; }
    .how-it-works { padding: 3rem 1rem; }
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .nav-container { padding: 1rem; }
    .hero { padding: 4rem 1rem 3rem; }
    .hero-content h1 { font-size: 2rem; }
    .features { padding: 3rem 1rem; }
    .feature-container { gap: 1rem; }
    .app-text h2 { font-size: 1.5rem; }
    .app-buttons { flex-direction: column; }
    .how-it-works h2 { font-size: 1.5rem; }
    .step-number {
        width: 30px;
        height: 30px;
    }
}