/* MODERN CSS RESET (Sıfırlama) */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* RENK PALETİ VE DEĞİŞKENLER */
:root {
    --primary-color: #2563eb; /* Mavi (Uygulamanızdaki gibi) */
    --primary-hover: #1d4ed8;
    --dark-bg: #0f172a; /* Koyu Lacivert/Gri (CAD Editör rengi) */
    --text-dark: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --bg-light: #f8fafc;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- HEADER (ÜST MENÜ) --- */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center; /* Resim ve yazıyı dikeyde ortalar */
    gap: 10px; /* Resim ile yazı arasındaki boşluk */
    font-size: 24px;
    font-weight: 900;
    letter-spacing: -0.5px;
}

.logo-img {
    height: 70px; /* Logonun yüksekliği.  */
    width: auto;
}

.logo-tamgam { color: var(--primary-color); }
.logo-cad { color: var(--text-dark); }

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

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

.main-nav a:hover {
    color: var(--primary-color);
}

/* BUTONLAR */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    border: 2px solid var(--primary-color);
}

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

/* --- HERO (GİRİŞ) BÖLÜMÜ --- */
.hero {
    background-color: var(--bg-light);
    padding: 80px 0;
}

.hero-container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.hero-text {
    flex: 1;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-bg);
}

.hero-text p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
}

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

.hero-image {
    flex: 1;
}

.placeholder-image {
    width: 100%;
    height: 350px;
    background-color: var(--dark-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 500;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* --- ÖZELLİKLER BÖLÜMÜ --- */
.features {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    color: var(--dark-bg);
}

.divider {
    height: 4px;
    width: 60px;
    background-color: var(--primary-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

.features-grid {
    display: flex;
    gap: 30px;
    justify-content: space-between;
}

.feature-card {
    flex: 1;
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border: 1px solid #e2e8f0;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card .icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 15px;
}

/* --- FOOTER --- */
footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 40px;
}

.footer-col {
    flex: 1;
}

.footer-col p {
    color: #94a3b8;
    margin-top: 15px;
    font-size: 14px;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
}

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

.footer-col ul li a {
    color: #94a3b8;
    font-size: 14px;
}

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

.footer-bottom {
    text-align: center;
    border-top: 1px solid #334155;
    padding-top: 20px;
    font-size: 14px;
    color: #94a3b8;
}

/* RESPONSIVE (Mobil Uyumluluk) */
@media screen and (max-width: 768px) {
    .header-container { flex-direction: column; height: auto; padding: 20px 0; gap: 15px; }
    .hero-container { flex-direction: column; text-align: center; }
    .hero-buttons { justify-content: center; }
    .features-grid { flex-direction: column; }
    .footer-container { flex-direction: column; text-align: center; }
}

/* RESİM STİLLERİ */
.app-screenshot {
    width: 100%; /* Ekran küçülse de kendi alanının %100'üne sığsın */
    max-width: 800px; /* Çok büyük ekranlarda devasa olmasını engeller */
    height: auto; /* En/boy oranını bozmaz */
    border-radius: 12px; /* Köşeleri modern şekilde yuvarlatır */
    box-shadow: 0 20px 40px rgba(0,0,0,0.15); /* Derinlik katan şık gölge */
    display: block;
    margin: 0 auto; /* Resmi ortalar */
    border: 1px solid #e2e8f0; /* Çok ince zarif bir çerçeve */
}

/* --- İLETİŞİM BÖLÜMÜ --- */
.contact {
    background-color: var(--bg-light);
    padding: 80px 0;
}

.contact .section-title p {
    margin-top: 15px;
    color: var(--text-light);
}

.contact-wrapper {
    display: flex;
    gap: 50px;
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border: 1px solid #e2e8f0;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--dark-bg);
}

.contact-info p {
    margin-bottom: 15px;
    color: var(--text-dark);
}

.contact-note {
    margin-top: 30px;
    font-size: 14px;
    color: var(--text-light);
    font-style: italic;
}

.contact-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.3s ease;
}

/* Kutuya tıklanınca etrafında mavi parlama efekti */
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Mobilde yan yana değil alt alta dizeceğiz */
@media screen and (max-width: 768px) {
    .contact-wrapper {
        flex-direction: column;
    }
}
/* --- PRO VERSİYON SAYFASI --- */
.pricing-page {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.pricing-cards {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
    align-items: center;
}

.pricing-card {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    position: relative;
    transition: transform 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

/* Pro Paketi Öne Çıkarma */
.pro-card {
    border: 2px solid var(--primary-color);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
    transform: scale(1.05); /* Pro kartını biraz daha büyük yapar */
}

.pro-card:hover {
    transform: scale(1.05) translateY(-5px);
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 1px;
}

.pricing-card h3 {
    font-size: 24px;
    color: var(--dark-bg);
    margin-bottom: 15px;
    text-align: center;
}

.price {
    font-size: 48px;
    font-weight: 900;
    color: var(--dark-bg);
    text-align: center;
    margin-bottom: 15px;
}

.price span {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-light);
}

.card-desc {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 30px;
    font-size: 15px;
}

.features-list {
    margin-bottom: 40px;
}

.features-list li {
    margin-bottom: 15px;
    color: var(--text-dark);
    font-weight: 500;
}

.features-list li.disabled {
    color: #94a3b8;
    text-decoration: line-through;
}

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

/* Mobilde kartları alt alta dizme */
@media screen and (max-width: 768px) {
    .pricing-cards {
        flex-direction: column;
    }
    .pro-card {
        transform: scale(1);
    }
    .pro-card:hover {
        transform: scale(1) translateY(-5px);
    }
}

/* --- KULLANIM KILAVUZU (DOKÜMANTASYON) SAYFASI --- */
.docs-page {
    padding: 60px 0;
    background-color: var(--bg-light);
    min-height: calc(100vh - 200px);
}

.docs-container {
    display: flex;
    gap: 40px;
}

/* Sol Menü */
.docs-sidebar {
    width: 250px;
    flex-shrink: 0;
    background: var(--white);
    padding: 30px 20px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    align-self: flex-start;
    position: sticky;
    top: 100px; /* Sayfa kaydıkça menü ekranda kalır */
}

.docs-sidebar h3 {
    font-size: 18px;
    color: var(--dark-bg);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bg-light);
}

.docs-nav li {
    margin-bottom: 10px;
}

.docs-nav a {
    display: block;
    padding: 8px 12px;
    color: var(--text-light);
    border-radius: 6px;
    font-weight: 500;
}

.docs-nav a:hover, .docs-nav a.active {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
}

/* Sağ İçerik */
.docs-content {
    flex: 1;
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.docs-section {
    margin-bottom: 50px;
}

.docs-section:last-child {
    margin-bottom: 0;
}

.docs-section h2 {
    font-size: 28px;
    color: var(--dark-bg);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e2e8f0;
}

.docs-section p {
    color: var(--text-dark);
    margin-bottom: 15px;
}

.docs-section ul {
    list-style: disc;
    margin-left: 20px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

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

/* Bilgi Kutusu */
.info-box {
    background-color: #f0fdf4; /* Hafif yeşil tonu */
    border-left: 4px solid #22c55e;
    padding: 15px 20px;
    border-radius: 0 8px 8px 0;
    color: #166534;
    font-size: 15px;
}

/* Mobilde menüyü yukarı, içeriği aşağı alma */
@media screen and (max-width: 768px) {
    .docs-container {
        flex-direction: column;
    }
    .docs-sidebar {
        width: 100%;
        position: static;
    }
}
/* --- YASAL METİNLER SAYFASI --- */
.legal-page {
    padding: 60px 0;
    background-color: var(--bg-light);
}

.legal-section {
    background: var(--white);
    padding: 50px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin-bottom: 40px;
}

.legal-section h2 {
    font-size: 28px;
    color: var(--dark-bg);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--bg-light);
}

.legal-content h3 {
    font-size: 16px;
    color: var(--primary-color);
    margin-top: 25px;
    margin-bottom: 10px;
}

.legal-content p {
    color: var(--text-dark);
    margin-bottom: 15px;
    font-size: 15px;
}

.legal-content ul {
    list-style-type: disc;
    margin-left: 20px;
    margin-bottom: 20px;
    color: var(--text-dark);
    font-size: 15px;
}

.legal-content ul li {
    margin-bottom: 8px;
}

.lang-badge {
    display: inline-block;
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.legal-divider {
    margin: 50px 0 30px;
    border-top: 1px dashed #cbd5e1;
    position: relative;
    text-align: center;
}

.legal-divider span {
    background: var(--white);
    padding: 0 15px;
    color: #94a3b8;
    font-weight: bold;
    font-size: 12px;
    letter-spacing: 1px;
    position: relative;
    top: -9px;
}

/* --- İNDİRME (CTA) BÖLÜMÜ --- */
.download-section {
    padding: 100px 0;
    /* Koyu lacivert/mavi bir degrade (gradient) arka plan */
    background: linear-gradient(135deg, var(--dark-bg), #1e293b);
    color: var(--white);
    text-align: center;
}

.download-box {
    max-width: 650px;
    margin: 0 auto;
}

.download-box h2 {
    font-size: 36px;
    font-weight: 900;
}

.download-box p {
    font-size: 18px;
    color: #94a3b8;
    margin-bottom: 30px;
    line-height: 1.8;
}

/* Store Rozeti */
.store-badge {
    display: inline-block;
    margin-bottom: 20px;
}

.store-badge img {
    height: 60px; /* Rozetin standart, ideal yüksekliği */
    transition: transform 0.3s ease;
}

.store-badge:hover img {
    transform: scale(1.05); /* Üzerine gelince hafifçe büyür */
}

.download-note {
    font-size: 14px !important;
    color: #64748b !important;
    margin-bottom: 0 !important;
}

/* Kullanım kılavuzundaki resimlerin tasarımı */
.docs-img {
    width: 100%; /* Resmin taşıp sayfayı bozmasını engeller */
    max-width: 700px;
    height: auto;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin: 20px 0; /* Üstten alttan boşluk verir */
}

/* Dil Seçici Tasarımı */
.lang-switch {
    margin-left: 20px;
    margin-right: 20px;
    font-size: 15px;
    font-weight: bold;
}
.lang-switch a {
    color: var(--text-light);
    transition: color 0.3s ease;
    padding: 5px;
}
.lang-switch a.active {
    color: var(--primary-color);
}
.lang-switch a:hover {
    color: var(--primary-color);
}
.lang-switch span {
    color: #cbd5e1;
    margin: 0 2px;
}