/* =========================================
   1. FONTS & VARIABLES
   ========================================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --aviation-blue: #0f172a;
    --aviation-accent: #0284c7;
    --aviation-light: #f1f5f9;
    --aviation-gray: #64748b;
    --surface-white: #ffffff;
    --border-color: #e2e8f0;
    --navbar-height-desktop: 110px; /* Navbar Yüksekliği */
    --navbar-height-mobile: 80px;
}

/* =========================================
   2. GLOBAL SETTINGS
   ========================================= */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--aviation-light);
    color: #334155;
    font-size: 0.9rem;
    /* Navbar büyüdüğü için içeriği daha aşağı itiyoruz */
    padding-top: calc(var(--navbar-height-desktop) + 20px);
}

a {
    text-decoration: none;
}

/* =========================================
   3. NAVBAR & LOGO (BÜYÜTÜLDÜ)
   ========================================= */
.navbar-aviation {
    background-color: var(--surface-white);
    box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.1);
    padding: 0.8rem 1.5rem; /* Boşlukları artırdık */
    border-bottom: 1px solid var(--border-color);
    height: var(--navbar-height-desktop); /* Sabit yükseklik */
    display: flex;
    align-items: center;
}

/* Logo Alanı */
.navbar-brand {
    margin-right: 2rem;
    display: flex;
    align-items: center;
}

/* LOGO BOYUTLANDIRMA */
.nav-logo {
    height: 175px; /* Masaüstünde oldukça büyük ve net */
    width: auto; /* Orantıyı koru */
    max-width: 250px; /* Çok yayvan logolar için sınır */
    object-fit: contain;
    transition: all 0.3s ease;
    display: block;
}

/* Linkler */
.nav-link {
    font-weight: 600;
    color: var(--aviation-gray) !important;
    transition: all 0.2s;
    padding: 0.6rem 1.2rem !important;
    font-size: 1rem;
}

    .nav-link:hover, .nav-link.active {
        color: var(--aviation-accent) !important;
        background-color: #f0f9ff;
        border-radius: 8px;
    }

/* =========================================
   4. PAGE HEADERS & BUTTONS
   ========================================= */
.page-header {
    background-color: transparent;
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--aviation-blue);
    margin: 0;
    letter-spacing: -0.5px;
}

.page-subtitle {
    font-size: 0.95rem;
    color: var(--aviation-gray);
    margin-top: 5px;
    margin-bottom: 0;
}

/* Buton Düzenlemeleri */
.btn-primary-aviation {
    background-color: var(--aviation-blue);
    border-color: var(--aviation-blue);
    color: white;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.2s;
}

    .btn-primary-aviation:hover {
        background-color: #1e293b;
        box-shadow: 0 4px 12px rgba(15, 23, 42, 0.25);
        transform: translateY(-1px);
    }

.btn-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: auto !important;
}

/* =========================================
   5. CARDS, TABLES & FORMS
   ========================================= */
.card-aviation { /* ...Eski kodlar aynı... */
}

.table-responsive {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: white;
}

.table-hover tbody tr:hover {
    background-color: #f8fafc;
}

.form-control:focus {
    border-color: var(--aviation-accent);
    box-shadow: 0 0 0 4px rgba(2, 132, 199, 0.1);
}

/* =========================================
   6. RESPONSIVE (MOBİL AYARLAR)
   ========================================= */
@media (max-width: 992px) {
    /* Tablet ve Mobilde Navbar Küçülür */
    .navbar-aviation {
        height: auto; /* İçeriğe göre uzasın */
        min-height: var(--navbar-height-mobile);
        padding: 0.8rem 1rem;
    }

    body {
        padding-top: 100px; /* Mobilde body boşluğu azalır */
    }

    /* Mobilde Logo biraz daha makul boyuta iner */
    .nav-logo {
        height: 150px;
    }

    /* Mobilde Header Başlık ve Buton alt alta gelir */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .btn-action {
        width: 100% !important;
        justify-content: center;
    }
}