/* Tema: Saf (Modern & Clean)
   Renkler: Gri/Beyaz Tonları + Mavi Vurgu
*/
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

:root {
    --bg-body: #f4f6f8;       /* Çok açık gri arka plan */
    --bg-card: #ffffff;       /* Beyaz kartlar */
    --text-main: #2d3748;     /* Koyu gri metin */
    --text-muted: #718096;    /* Soluk gri metin */
    --color-primary: #3182ce; /* Modern mavi */
    --color-hover: #2b6cb0;   /* Koyu mavi */
    --border-color: #e2e8f0;  /* İnce kenarlıklar */
    --shadow-sm: 0 1px 3px 0 rgba(0,0,0,0.1), 0 1px 2px 0 rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* Footer'ı aşağı itmek için */
}

/* --- HEADER & NAV --- */
header {
    background-color: var(--bg-card);
    box-shadow: var(--shadow-sm);
    position: sticky; /* Menüyü yukarı sabitle */
    top: 0;
    z-index: 1000;
}

.navbar {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
}

.nav-links a {
    margin-left: 20px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

.nav-links .btn-nav {
    background-color: var(--color-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
}
.nav-links .btn-nav:hover { color: white; background-color: var(--color-hover); }

/* --- MAIN CONTAINER --- */
.container {
    flex: 1; /* İçerik az olsa bile alanı kapla */
    max-width: 1100px;
    width: 100%;
    margin: 20px auto;
    padding: 0 20px;
}

/* --- KARTLAR & KUTULAR --- */
.card, .welcome, .category-item, .post-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 35px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

/* --- KARTLAR & KUTULAR --- */
.cardtop, .welcome, .category-item, .post-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 0px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

/* --- KARTLAR & KUTULAR --- */
.card-cat, .welcome, .category-item, .post-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 0px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
}

/* Alıntı Kutusu Stili (view_posts.php) */
.blockquote {
    /* Açık Gri arka plan */
    background-color: #f0f0f0;
    /* Sol kenarlık ve dolgu */
    border-left: 4px solid #ccc;
    padding: 10px 15px;
    margin: 15px 0;
    border-radius: 4px;
}


/* Yeni eklenen post içeriği sınıfı */
.post-content-body {
    line-height: 1.7;
}


.welcome {
    background-color: #ebf8ff; /* Çok açık mavi */
    border-color: #bee3f8;
    color: #2c5282;
    font-weight: 500;
}

/* --- KATEGORİ LİSTESİ --- */
.category-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.category-item h3 { margin: 0 0 10px 0; font-size: 1.2rem; }
.category-item h3 a { color: var(--text-main); text-decoration: none; }
.category-item h3 a:hover { color: var(--color-primary); }
.category-item p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }

/* --- TABLOLAR --- */
table { width: 100%; border-collapse: collapse; margin-top: 0px; background: white; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-sm); }
th, td { padding: 16px; text-align: left; border-bottom: 1px solid var(--border-color); }
th { background-color: #f7fafc; font-weight: 600; color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; }
tr:last-child td { border-bottom: none; }

/* --- FORMLAR --- */
input[type="text"], input[type="email"], input[type="password"], textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-main);
    background-color: #fff;
    transition: border-color 0.2s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.btn-submit, .btn-primary {
    display: inline-block;
    background-color: var(--color-primary);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
}
.btn-submit:hover { background-color: var(--color-hover); }

/* --- FOOTER --- */
footer {
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 0px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .navbar { flex-direction: column; height: auto; padding: 15px; }
    .nav-links { margin-top: 15px; width: 100%; display: flex; flex-direction: column; align-items: center; gap: 10px; }
    .nav-links a { margin: 0; }
    .container { margin-top: 20px; }
    table { display: block; overflow-x: auto; white-space: nowrap; }
}