/* style.css - Tam ve Güncel Kod (29 Mayıs 2025 itibarıyla) */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700&family=Open+Sans:wght@400;600&display=swap');

:root {
    --primary-color: #3498db; /* Ana Mavi */
    --secondary-color: #2c3e50; /* Koyu Lacivert/Gri */
    --accent-color: #e74c3c; /* Vurgu Kırmızısı */
    --light-bg: #f4f7f9; /* Çok Açık Gri Arka Plan */
    --dark-text: #333333;
    --light-text: #ecf0f1;
    --border-color: #e0e0e0;
    --card-bg: #ffffff;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.12);

    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;

    --container-width: 1200px;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.7;
    background-color: var(--light-bg);
    color: var(--dark-text);
    font-size: 16px;
    overflow-x: hidden; /* Yatay scroll barı engelle */
}

.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 15px;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--secondary-color);
    line-height: 1.3;
    margin-bottom: 0.75rem;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.8rem; }

p {
    margin-bottom: 1rem;
}

/* Buton Stilleri */
.btn {
    display: inline-block;
    background: var(--primary-color);
    color: #fff;
    padding: 12px 28px;
    border: none;
    border-radius: 5px;
    font-family: var(--font-primary);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    cursor: pointer;
}

.btn:hover {
    background: var(--secondary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.btn-accent {
    background-color: var(--accent-color);
}
.btn-accent:hover {
    background-color: #c0392b; /* Accent hover */
}

.btn-small { /* Menüdeki veya kartlardaki butonlar için */
    padding: 8px 18px;
    font-size: 0.85rem;
}

/* Form Stilleri (Gelişmiş) */
.form-grup {
    margin-bottom: 20px;
}
.form-grup label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600; /* Open Sans için bold yerine semi-bold */
    color: var(--secondary-color);
    font-size: 0.9rem;
}
.form-grup input[type="text"],
.form-grup input[type="password"],
.form-grup input[type="email"],
.form-grup textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-sizing: border-box;
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-grup input[type="text"]:focus,
.form-grup input[type="password"]:focus,
.form-grup input[type="email"]:focus,
.form-grup textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}
.form-grup textarea {
    min-height: 150px;
    resize: vertical;
}

/* Hata ve Başarı Mesajları */
.message { /* login.php içindeki .error sınıfı yerine bunu kullanabilirsiniz */
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-size: 0.95rem;
}
.message.error, .error { /* .error sınıfını da destekleyelim */
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Login Container (Önceki adımdan) */
.login-container {
    width: 350px;
    margin: 80px auto;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.login-container h2 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--secondary-color);
}


/* Header Stilleri */
.site-header {
    background-color: #fff;
    box-shadow: var(--shadow);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo-area {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo-image {
    max-height: 40px;
    margin-right: 10px;
}

.logo-text {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--secondary-color);
    letter-spacing: -0.5px;
}

.tagline {
    font-size: 0.8rem;
    color: #7f8c8d;
    margin-left: 15px;
    font-style: italic;
    border-left: 1px solid var(--border-color);
    padding-left: 15px;
}

.main-navigation .nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
}

.main-navigation .nav-menu li {
    margin-left: 25px;
}

.main-navigation .nav-menu li a {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--secondary-color);
    padding: 10px 0;
    position: relative;
    letter-spacing: 0.3px;
    font-size: 0.95rem;
}

.main-navigation .nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.main-navigation .nav-menu li a:hover::after,
.main-navigation .nav-menu li a.active::after {
    width: 100%;
}
.main-navigation .nav-menu li a.active {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}
.menu-icon-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--secondary-color);
    margin: 4px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.menu-toggle.active .menu-icon-bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}
.menu-toggle.active .menu-icon-bar:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active .menu-icon-bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Ana İçerik Alanı */
.main-content-area {
    padding-top: 30px;
    padding-bottom: 60px;
    min-height: calc(100vh - var(--header-height) - 250px); /* Footer yüksekliğine göre ayarlanabilir (footer yaklaşık yüksekliği) */
}

/* Hero Section Stilleri (index.php) */
.hero-section {
    background-color: var(--secondary-color);
    color: var(--light-text);
    padding: 80px 0;
    text-align: center;
    /*
    background-image: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.9)), url('path/to/hero-image.jpg');
    background-size: cover;
    background-position: center;
    */
}
.hero-content {
    max-width: 700px;
    margin: 0 auto;
}
.hero-title {
    font-size: 3.2rem;
    color: #fff;
    margin-bottom: 20px;
    font-weight: 700;
}
.hero-subtitle {
    font-size: 1.2rem;
    color: #bdc3c7;
    margin-bottom: 30px;
    line-height: 1.8;
}

/* Genel Sayfa ve Bölüm Stilleri (index.php) */
.page-container { /* .container'a ek olarak sayfa içi padding için */
    padding-top: 40px;
    padding-bottom: 40px;
}
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 15px;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Yazı Kartları Grid (index.php) */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.post-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.post-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.post-card-image-placeholder {
    height: 200px;
    background-color: #e9ecef;
    display: flex;
    justify-content: center;
    align-items: center;
}
.post-card-image-placeholder .placeholder-icon {
    font-size: 3rem;
    color: #adb5bd;
}

.post-card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.post-card-title {
    font-size: 1.4rem;
    margin-bottom: 10px;
    line-height: 1.4;
}
.post-card-title a {
    color: var(--secondary-color);
}
.post-card-title a:hover {
    color: var(--primary-color);
}

.post-card-excerpt {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 20px;
    flex-grow: 1;
}

.post-card-meta {
    font-size: 0.8rem;
    color: #7f8c8d;
    margin-bottom: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.meta-author, .meta-date {
    margin-bottom: 5px;
}

.btn-read-more { /* post-card içindeki buton için */
    align-self: flex-start;
}

.no-posts-message {
    grid-column: 1 / -1;
    text-align: center;
    padding: 50px 20px;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    font-size: 1.3rem;
    color: #7f8c8d;
}

.all-posts-link-container {
    text-align: center;
    margin-top: 50px;
}

/* Footer Stilleri */
.site-footer-main {
    background-color: var(--secondary-color);
    color: var(--light-text);
    padding: 60px 0 30px;
    border-top: 5px solid var(--primary-color);
}

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

.footer-widget {
    flex-basis: calc(33.333% - 20px); /* gap'ı hesaba katarak 3 sütun */
    min-width: 280px;
}

.footer-widget .widget-title {
    font-size: 1.3rem;
    color: #fff;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    position: relative;
}
.footer-widget .widget-title::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-widget p {
    font-size: 0.9rem;
    color: #bdc3c7;
    line-height: 1.8;
}

.footer-nav {
    list-style: none;
}
.footer-nav li {
    margin-bottom: 10px;
}
.footer-nav li a {
    color: #bdc3c7;
    font-size: 0.9rem;
    transition: color 0.3s ease, padding-left 0.3s ease;
}
.footer-nav li a:hover {
    color: #fff;
    padding-left: 5px;
}

.social-icons a {
    display: inline-block;
    color: #bdc3c7;
    margin-right: 15px;
    font-size: 0.9rem;
    /* FontAwesome kullanıyorsanız:
    font-size: 1.5rem;
    width: 35px; height: 35px; line-height: 35px; text-align: center; border: 1px solid #bdc3c7; border-radius: 50%;
    */
    transition: color 0.3s ease, transform 0.2s ease;
}
.social-icons a:hover {
    color: #fff;
    transform: scale(1.1);
    /* FontAwesome kullanıyorsanız:
    border-color: #fff;
    */
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.85rem;
    color: #95a5a6;
}
.footer-bottom p {
    margin-bottom: 0;
}


/* Mobil Duyarlılık Stilleri */
@media (max-width: 992px) { /* Tablet ve büyük telefonlar */
    .hero-title { font-size: 2.6rem; }
    .hero-subtitle { font-size: 1.1rem; }
    .section-title { font-size: 2rem; }

    .footer-widgets {
        gap: 40px;
    }
    .footer-widget {
        flex-basis: calc(50% - 20px); /* Tablette 2 sütun */
    }
}

@media (max-width: 768px) { /* Küçük tabletler ve telefonlar */
    :root {
        --header-height: 60px;
    }
    .header-container {
        position: relative;
    }
    .logo-text { font-size: 1.5rem; }
    .tagline { display: none; }

    .menu-toggle {
        display: block;
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        z-index: 1001; /* Menüden üstte olsun */
    }

    .main-navigation .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: #fff;
        box-shadow: var(--shadow);
        padding: 15px 0;
        border-top: 1px solid var(--border-color);
        z-index: 1000;
    }
    .main-navigation .nav-menu.active {
        display: flex;
    }
    .main-navigation .nav-menu li {
        margin-left: 0;
        width: 100%;
    }
    .main-navigation .nav-menu li a {
        display: block;
        padding: 12px 20px;
        border-bottom: 1px solid var(--border-color);
    }
    .main-navigation .nav-menu li:last-child a {
        border-bottom: none;
    }
    .main-navigation .nav-menu li a::after {
        display: none;
    }
    .main-navigation .nav-menu li a.active,
    .main-navigation .nav-menu li a:hover {
        background-color: var(--light-bg);
        color: var(--primary-color);
    }
    .admin-menu-item a.btn {
        display: block;
        width: calc(100% - 40px);
        margin: 10px 20px;
        text-align: center;
        box-sizing: border-box;
    }

    .hero-title { font-size: 2rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-section { padding: 60px 0; }

    .post-grid {
        grid-template-columns: 1fr; /* Tek sütun */
    }
    .post-card-title { font-size: 1.3rem; }

    .footer-widget {
        flex-basis: 100%; /* Mobilde footer widget'ları tek sütun */
    }
}

@media (max-width: 480px) { /* Çok küçük ekranlar */
    body { font-size: 15px; }
    h1 { font-size: 2rem; } /* Örnek ana başlık boyutu */
    h2 { font-size: 1.7rem; } /* Örnek bölüm başlığı */
    .btn { padding: 10px 20px; font-size: 0.9rem;}
    .hero-title { font-size: 1.8rem; }
    .hero-subtitle { font-size: 0.9rem; }
    .logo-text { font-size: 1.3rem; }
}

/*
.no-scroll {
    overflow: hidden;
}
*/

/* ===========================================
   HERO EK DOKUNUŞLAR (index.php)
   =========================================== */

.hero-kicker {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.75rem;
    color: #bdc3c7;
    margin-bottom: 0.75rem;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.btn-ghost {
    background: transparent;
    color: #ecf0f1;
    border: 1px solid rgba(236, 240, 241, 0.5);
    box-shadow: none;
}
.btn-ghost:hover {
    background: rgba(236, 240, 241, 0.08);
    color: #fff;
}

/* ===========================================
   POST KARTLARI – KAPAK GÖRSELİ ve ROZET
   =========================================== */

/* Yeni sınıf: görseli olan kartlar için */
.post-card-image {
    position: relative;
    height: 210px;
    overflow: hidden;
    background-color: #e9ecef;
}
.post-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.post-card:hover .post-card-image img {
    transform: scale(1.04);
}

/* Placeholder ile uyumlu görünmesi için */
.post-card-image.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: #ecf0f1;
    background: linear-gradient(135deg, var(--secondary-color), #1a252f);
}
.post-card-image.placeholder .placeholder-icon {
    font-size: 2.8rem;
    margin-bottom: 0.25rem;
}
.post-card-image.placeholder .placeholder-label {
    font-size: 0.8rem;
    opacity: 0.9;
}

/* PDF ROZETİ */
.post-card-badge.pdf-badge {
    position: absolute;
    right: 12px;
    bottom: 12px;
    background: var(--accent-color);
    color: #fff;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
}

.meta-dot {
    opacity: 0.7;
}
.meta-pdf {
    color: var(--accent-color);
    font-weight: 600;
}

/* ===========================================
   POST DETAY SAYFASI (post.php)
   =========================================== */

.post-detail-container {
    padding-top: 50px;
    padding-bottom: 60px;
}

.post-layout {
    display: grid;
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.1fr);
    gap: 30px;
    align-items: flex-start;
}

@media (max-width: 992px) {
    .post-layout {
        grid-template-columns: 1fr;
    }
}

.post-detail-header {
    margin-bottom: 20px;
}

.post-detail-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.75rem;
    color: #7f8c8d;
    margin-bottom: 6px;
}

.post-detail-title {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.post-detail-meta {
    font-size: 0.85rem;
    color: #7f8c8d;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
}

.post-detail-cover img {
    width: 100%;
    border-radius: 14px;
    box-shadow: var(--shadow-hover);
    margin: 22px 0 26px;
}

.post-detail-body {
    font-size: 1rem;
    line-height: 1.8;
    color: #2c3e50;
}

.post-detail-body p {
    margin-bottom: 1.1rem;
}

.post-detail-footer {
    margin-top: 30px;
}

/* ===========================================
   POST DETAY – PDF CALL OUT
   =========================================== */

.post-detail-pdf-callout {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #ecf0f1;
    border-radius: 12px;
    padding: 16px 18px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: var(--shadow-hover);
}

.post-detail-pdf-callout .callout-text {
    font-size: 0.95rem;
}

.post-detail-pdf-callout .callout-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.post-detail-pdf-callout .btn {
    box-shadow: none;
}

/* ===========================================
   SAĞ PANEL (PDF simülatör + özet)
   =========================================== */

.post-sidebar {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

@media (max-width: 992px) {
    .post-sidebar {
        position: static;
    }
}

.pdf-viewer-card,
.post-summary-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 16px 18px 18px;
    box-shadow: var(--shadow);
}

.pdf-viewer-title,
.post-summary-title {
    font-size: 1.05rem;
    margin-bottom: 6px;
}

.pdf-viewer-subtitle {
    font-size: 0.85rem;
    color: #7f8c8d;
    margin-bottom: 10px;
}

.post-summary-body {
    font-size: 0.9rem;
    color: #555;
}

/* ===========================================
   PDF VIEWER (PDF.js)
   =========================================== */

.pdf-toolbar,
.pdf-zoom-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
    font-size: 0.8rem;
}

.pdf-page-info {
    font-size: 0.8rem;
    color: #7f8c8d;
}

.pdf-zoom-label {
    font-size: 0.8rem;
    color: #7f8c8d;
}

.pdf-canvas-wrapper {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    background: #0f172a;
    padding: 5px;
    margin-top: 4px;
}

#pdfCanvas {
    width: 100%;
    display: block;
    border-radius: 6px;
    background: #111827;
}

.pdf-loading-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: radial-gradient(circle at top, rgba(15,23,42,0.7), rgba(15,23,42,0.9));
    color: #e5e7eb;
    font-size: 0.8rem;
}

.pdf-loading-overlay .spinner {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    border: 2px solid rgba(249,250,251,0.3);
    border-top-color: var(--primary-color);
    animation: spin 0.9s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.pdf-footer-note {
    margin-top: 8px;
    font-size: 0.75rem;
    color: #7f8c8d;
}

/* Küçük buton versiyonu (PDF kontrol tuşları için) */
.btn.btn-xs {
    padding: 4px 10px;
    font-size: 0.75rem;
    text-transform: none;
    letter-spacing: 0;
}

/* ===========================================
   404 BLOĞU (post.php bulunamazsa)
   =========================================== */

.not-found-wrapper h1 {
    color: var(--secondary-color);
}
.not-found-wrapper p {
    color: #7f8c8d;
}