/* Dert.net Sohbet Teması - Optimized CSS */

:root {
    --turuncu: #FF6B35;
    --turuncu-koyu: #E85A2A;
    --beyaz: #FFFFFF;
    --lacivert: #1E3A8A;
    --lacivert-koyu: #1E40AF;
    --sari: #FFD700;
    --koyu-kirmizi: #8B0000;
    --siyah: #000000;
    --gri: #2C2C2C;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--gri) 0%, var(--siyah) 100%);
    color: var(--beyaz);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--lacivert) 0%, var(--lacivert-koyu) 100%);
    padding: 1rem 0;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    transition: transform 0.3s;
}

.logo-container:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--turuncu) 0%, var(--koyu-kirmizi) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 3px solid var(--sari);
    flex-shrink: 0;
}

.logo-text {
    font-size: 32px;
    font-weight: bold;
    background: linear-gradient(135deg, var(--turuncu) 0%, var(--sari) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.nav {
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

.nav-link {
    padding: 12px 20px;
    color: var(--beyaz);
    text-decoration: none;
    font-weight: 600;
    border-radius: 25px;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid transparent;
    font-size: 14px;
}

.nav-link:hover {
    background: var(--turuncu);
    transform: translateY(-2px);
}

.nav-link.active {
    background: var(--turuncu);
    border-color: var(--sari);
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    width: 100%;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--lacivert) 0%, var(--turuncu) 100%);
    padding: 20px 25px;
    border-radius: 12px;
    text-align: center;
    margin-bottom: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.hero h1 {
    font-size: 28px;
    margin-bottom: 8px;
    color: var(--beyaz);
    line-height: 1.2;
}

.hero p {
    font-size: 14px;
    color: var(--beyaz);
    opacity: 0.95;
    line-height: 1.4;
    margin: 0;
}

/* Content Sections */
.content-section {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 15px;
    margin-bottom: 30px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.content-section h2 {
    color: var(--turuncu);
    font-size: 32px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--sari);
}

.content-section h3 {
    color: var(--sari);
    font-size: 24px;
    margin: 25px 0 15px 0;
}

.content-section p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: var(--beyaz);
    opacity: 0.9;
}

.content-section ul, .content-section ol {
    margin: 20px 0;
    padding-left: 30px;
}

.content-section li {
    margin-bottom: 10px;
    color: var(--beyaz);
    opacity: 0.9;
}

/* Forms */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--sari);
    font-weight: 600;
    font-size: 16px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--lacivert);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--beyaz);
    font-size: 16px;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--turuncu);
    background: rgba(255, 255, 255, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.btn {
    padding: 14px 35px;
    background: linear-gradient(135deg, var(--turuncu) 0%, var(--koyu-kirmizi) 100%);
    color: var(--beyaz);
    border: 2px solid var(--sari);
    border-radius: 25px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-3px);
    background: linear-gradient(135deg, var(--koyu-kirmizi) 0%, var(--turuncu) 100%);
}

/* FAQ Accordion */
.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--turuncu);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--sari);
    font-size: 18px;
}

.faq-question:hover {
    color: var(--turuncu);
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    font-weight: bold;
    color: var(--turuncu);
    transition: transform 0.3s;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
    padding: 0 20px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-answer p {
    color: var(--beyaz);
    opacity: 0.9;
    line-height: 1.8;
}

/* Article Grid */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.article-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    transition: all 0.3s;
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-5px);
    border-color: var(--turuncu);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

.article-card h3 {
    color: var(--turuncu);
    margin-bottom: 15px;
    font-size: 22px;
}

.article-card p {
    color: var(--beyaz);
    opacity: 0.8;
    margin-bottom: 15px;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--sari);
    opacity: 0.7;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--siyah) 0%, var(--gri) 100%);
    padding: 40px 20px;
    margin-top: 50px;
    border-top: 3px solid var(--turuncu);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: var(--turuncu);
    margin-bottom: 20px;
    font-size: 20px;
    border-bottom: 2px solid var(--sari);
    padding-bottom: 10px;
}

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

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

.footer-section a {
    color: var(--beyaz);
    text-decoration: none;
    transition: all 0.3s;
    opacity: 0.8;
    display: inline-block;
}

.footer-section a:hover {
    color: var(--turuncu);
    opacity: 1;
    transform: translateX(5px);
}

.footer-section p {
    color: var(--beyaz);
    opacity: 0.8;
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--beyaz);
    opacity: 0.7;
}

.footer-bottom a {
    color: var(--sari);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
}

.footer-bottom a:hover {
    color: var(--turuncu);
}

/* Login Buttons */
.login-section {
    background: rgba(255, 107, 53, 0.1);
    border: 2px solid var(--turuncu);
    max-width: 400px;
    margin: 0 auto 20px auto;
    padding: 20px;
    border-radius: 12px;
    width: 100%;
    box-sizing: border-box;
}

.login-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.login-btn {
    display: block;
    padding: 14px 25px;
    border-radius: 10px;
    color: var(--beyaz);
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.login-btn-chat {
    background: linear-gradient(135deg, var(--turuncu) 0%, var(--koyu-kirmizi) 100%);
    border-color: var(--turuncu);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.login-btn-chat:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
}

.login-btn-mobil {
    background: linear-gradient(135deg, var(--lacivert) 0%, var(--lacivert-koyu) 100%);
    border-color: var(--lacivert);
    box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.login-btn-mobil:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.5);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--turuncu);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.2);
}

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

/* Usage List */
.usage-list {
    margin-top: 20px;
    list-style-position: inside;
}

.usage-list li {
    margin-bottom: 15px;
}

.usage-list strong {
    color: var(--sari);
}

/* News List */
.news-list {
    margin-top: 20px;
}

.news-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 15px;
    border-left: 4px solid var(--turuncu);
}

.news-item h3 {
    color: var(--sari);
    margin-bottom: 10px;
    font-size: 20px;
}

.news-item time {
    color: var(--sari);
    font-size: 14px;
    opacity: 0.7;
    display: block;
    margin-top: 10px;
}

/* Links */
.highlight-link {
    color: var(--turuncu);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
}

.highlight-link:hover {
    color: var(--sari);
    border-bottom-color: var(--sari);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--siyah);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--turuncu) 0%, var(--koyu-kirmizi) 100%);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--koyu-kirmizi) 0%, var(--turuncu) 100%);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
    }

    .logo-text {
        font-size: 24px;
    }

    .nav {
        justify-content: center;
        width: 100%;
    }

    .nav-link {
        padding: 10px 15px;
        font-size: 13px;
    }

    .hero {
        padding: 18px 20px;
        margin-bottom: 18px;
        border-radius: 10px;
    }

    .hero h1 {
        font-size: 24px;
        margin-bottom: 6px;
    }

    .hero p {
        font-size: 13px;
    }

    .content-section {
        padding: 25px 20px;
    }

    .content-section h2 {
        font-size: 24px;
    }

    .login-section {
        padding: 18px 15px;
        max-width: 100%;
        margin: 0 auto 18px auto;
        width: 100%;
        box-sizing: border-box;
        border-radius: 10px;
    }

    .login-buttons {
        gap: 12px;
        width: 100%;
    }

    .login-btn {
        padding: 14px 18px;
        font-size: 15px;
        width: 100%;
        max-width: 100%;
        border-radius: 8px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .article-grid {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo-icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .logo-text {
        font-size: 20px;
    }

    .hero {
        padding: 15px 12px;
        margin-bottom: 15px;
        border-radius: 10px;
    }

    .hero h1 {
        font-size: 20px;
        margin-bottom: 5px;
    }

    .hero p {
        font-size: 12px;
        line-height: 1.3;
    }

    .content-section {
        padding: 20px 15px;
    }

    .login-section {
        padding: 15px 12px;
        max-width: 100%;
        width: 100%;
        margin: 0 auto 15px auto;
        box-sizing: border-box;
        border-radius: 10px;
    }

    .login-buttons {
        gap: 10px;
        width: 100%;
    }

    .login-btn {
        padding: 12px 16px;
        font-size: 14px;
        width: 100%;
        max-width: 100%;
        border-radius: 8px;
    }

    .feature-card {
        padding: 20px;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .nav {
        display: none;
    }
    
    .content-section {
        page-break-inside: avoid;
    }
}