/* Genel Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    transition: all 0.3s ease;
    overflow-x: hidden;
}

/* Container Yapısı */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Tipografi */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.highlight {
    color: var(--primary-color);
}

/* Buton Stilleri */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 128, 120, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

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

.btn-secondary:hover {
    background-color: #ff9800;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 167, 38, 0.3);
}

.btn-lg {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Header Stilleri */
.sticky-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--light-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    height: 50px;
    width: auto;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

#theme-toggle {
    background: none;
    border: none;
    color: var(--dark-color);
    font-size: 1.2rem;
    cursor: pointer;
    margin-left: 15px;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 20px;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 600;
    transition: color 0.3s ease;
    padding: 8px 12px;
    border-radius: 6px;
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: rgba(45, 128, 120, 0.1);
}

.auth-buttons {
    display: flex;
    gap: 15px;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--dark-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Bölümü */
.hero-section {
    padding: 180px 0 100px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    color: white;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 3rem;
}

.app-stats {
    display: flex;
    gap: 30px;
}

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

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: white;
    display: block;
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    max-width: 50%;
}

.app-screens {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
}

.floating-icon {
    position: absolute;
    animation: float 6s ease-in-out infinite;
    color: white;
    opacity: 0.8;
}

.recycle-icon {
    top: 20%;
    left: 10%;
    font-size: 2rem;
    animation-delay: 0s;
}

.leaf-icon {
    top: 70%;
    left: 80%;
    font-size: 1.8rem;
    animation-delay: 1s;
}

.award-icon {
    top: 40%;
    left: 85%;
    font-size: 2.2rem;
    animation-delay: 2s;
}

.wave-divider {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.wave-divider svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 120px;
    transform: rotateY(180deg);
}

/* Bölüm Başlıkları */
.section-title {
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--dark-color);
    opacity: 0.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Özellikler Bölümü */
.features-section {
    padding: 100px 0;
    background-color: var(--light-color);
}

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

.feature-card {
    background-color: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background-color: rgba(45, 128, 120, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.8rem;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background-color: var(--primary-color);
    color: white;
}

/* Nasıl Çalışır Bölümü */
.how-it-works-section {
    padding: 100px 0;
    background-color: #f9f9f9;
}

.steps-container {
    max-width: 800px;
    margin: 0 auto 50px;
}

.step-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-right: 20px;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    margin-bottom: 10px;
}

.video-container {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
}

.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* İş Ortakları Bölümü */
.partners-section {
    padding: 80px 0;
    background-color: white;
}

.partners-slider {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 50px;
}

.partner-logo {
    flex: 0 0 160px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Kullanıcı Yorumları Bölümü */
.testimonials-section {
    padding: 100px 0;
    background-color: #f9f9f9;
}

.testimonials-slider {
    display: flex;
    gap: 30px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.testimonial-card {
    flex: 0 0 350px;
    background-color: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    scroll-snap-align: start;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
    position: relative;
    margin-bottom: 20px;
}

.quote-icon {
    color: var(--primary-color);
    opacity: 0.2;
    font-size: 3rem;
    position: absolute;
    top: -10px;
    left: -10px;
    z-index: 0;
}

.testimonial-content p {
    position: relative;
    z-index: 1;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    margin-bottom: 5px;
}

.author-info span {
    color: var(--dark-color);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* İletişim Bölümü */
.contact-section {
    padding: 100px 0;
    background-color: white;
}

.contact-content {
    margin-bottom: 50px;
}

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

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

.info-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(45, 128, 120, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.info-content h4 {
    margin-bottom: 5px;
}

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

.info-content a:hover {
    text-decoration: underline;
}

.contact-form {
    background-color: #f9f9f9;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    margin-bottom: 20px;
    text-align: center;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(45, 128, 120, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Reklam Bölümü */
.advertisement-section {
    padding: 60px 0;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.ad-content h2 {
    color: white;
    margin-bottom: 15px;
}

.ad-content p {
    max-width: 600px;
    margin: 0 auto 25px;
    opacity: 0.9;
}

/* Footer */
.main-footer {
    background-color: var(--dark-color);
    color: white;
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
}

.footer-about p {
    opacity: 0.8;
    margin-bottom: 20px;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-col h4 {
    color: white;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

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

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.input-group {
    display: flex;
    margin-bottom: 20px;
}

.input-group input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
}

.input-group button {
    border-radius: 0 8px 8px 0;
    padding: 0 20px;
}

.app-download-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.download-btn {
    display: block;
}

.download-btn img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: 5px;
    opacity: 0.7;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: white;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* Animasyonlar */
@keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

/* Dark Mode */
[data-theme="dark"] {
    --light-color: #222;
    --dark-color: #f8f9fa;
}

[data-theme="dark"] .feature-card,
[data-theme="dark"] .testimonial-card,
[data-theme="dark"] .contact-form {
    background-color: #333;
    color: white;
}

[data-theme="dark"] .how-it-works-section,
[data-theme="dark"] .testimonials-section {
    background-color: #111;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background-color: #444;
    border-color: #555;
    color: white;
}

[data-theme="dark"] .footer-links a {
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Tasarım */
@media (max-width: 992px) {
    .hero-image {
        position: relative;
        max-width: 100%;
        transform: none;
        margin-top: 50px;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .app-stats {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
        order: 1; /* Hamburger menüyü sağa al */
        margin-left: auto;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--light-color);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .main-nav {
        position: relative;
    }
        .auth-buttons {
        display: none;
        flex-direction: column;
        gap: 10px;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--light-color);
        padding: 15px 20px;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 998;
    }
    .nav-links.active + .auth-buttons {
        display: flex;
    }
    .auth-buttons.active {
        transform: translateY(0);
    }
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .app-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .steps-container {
        padding: 0 20px;
    }
    
    .step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .step-number {
        margin-right: 0;
        margin-bottom: 15px;
    }
        .nav-links.active + .auth-buttons {
        transform: translateY(0);
        top: calc(100% + var(--nav-links-height));
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
}
/* Kurumsal Bölüm Stilleri */
.corporate-section {
    padding: 80px 0;
    background-color: var(--light-color);
}

.corporate-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.corporate-feature-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

[data-theme="dark"] .corporate-feature-card {
    background: #2a2a2a;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.corporate-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(45, 128, 120, 0.15);
}

.corporate-feature-card .feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: rgba(45, 128, 120, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 24px;
}

.corporate-feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.corporate-feature-card p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
}

[data-theme="dark"] .corporate-feature-card p {
    color: #ccc;
}

.corporate-cta {
    text-align: center;
    margin-top: 60px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* Responsive düzenlemeler */
@media (max-width: 768px) {
    .corporate-features-grid {
        grid-template-columns: 1fr;
    }
    
    .corporate-feature-card {
        padding: 20px;
    }
    
    .corporate-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .corporate-cta .btn {
        width: 100%;
        max-width: 300px;
    }
}