:root {
    --ozd-navy: #1a3a6b;
    --ozd-navy-dark: #142d52;
    --ozd-gray: #595959;
    --ozd-light: #f5f6f8;
}

html, body {
    font-family: 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: var(--ozd-light);
    color: #222;
}

a, .btn-link { color: var(--ozd-navy); }

.btn-primary {
    color: #fff;
    background-color: var(--ozd-navy);
    border-color: var(--ozd-navy-dark);
}
.btn-primary:hover { background-color: var(--ozd-navy-dark); border-color: var(--ozd-navy-dark); }

.btn:focus, .btn:active:focus, .form-control:focus, .form-check-input:focus, .form-select:focus {
    box-shadow: 0 0 0 0.15rem rgba(26, 58, 107, .25);
    border-color: var(--ozd-navy);
}

h1, h2, h3, h4, h5 { color: var(--ozd-navy); }
h1:focus { outline: none; }

/* --- Modern başlık çubuğu --- */
.app-topbar {
    background: rgba(255,255,255,.9);
    backdrop-filter: saturate(160%) blur(6px);
    border-bottom: 1px solid #e6ebf2;
    box-shadow: 0 2px 10px rgba(16,33,64,.05);
    position: sticky; top: 0; z-index: 1030; min-height: 60px;
}
.app-topbar .brand-logo { height: 40px; }

/* --- Modern sol menü --- */
.sidebar {
    background: linear-gradient(185deg, #17335f 0%, #0f2447 100%);
    min-height: 100vh;
}
.sidebar .nav-link {
    position: relative;
    color: rgba(255,255,255,.78);
    border-radius: 10px;
    margin: 2px 10px;
    padding: .55rem .85rem;
    display: flex; align-items: center; gap: .65rem;
    font-size: .93rem; transition: background .15s, color .15s;
}
.sidebar .nav-link:hover { background: rgba(255,255,255,.10); color: #fff; }
.sidebar .nav-link.active { background: rgba(255,255,255,.14); color: #fff; font-weight: 600; }
.sidebar .nav-link.active::before {
    content: ""; position: absolute; left: -2px; top: 8px; bottom: 8px;
    width: 3px; border-radius: 3px; background: #6aa3ff;
}
.sidebar .nav-link i { font-size: 1.02rem; width: 1.25rem; text-align: center; opacity: .85; }
.sidebar .nav-link.active i { opacity: 1; }
.sidebar .nav-group-title {
    color: rgba(255,255,255,.42);
    font-size: .68rem;
    text-transform: uppercase;
    letter-spacing: .09em;
    padding: 1rem 1.1rem .25rem;
    font-weight: 700;
}

/* --- Kartlar --- */
.card-section > .card-header {
    background: var(--ozd-navy);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}
.card-section .card-header .toggle-ico { transition: transform .2s; }
.card-section.collapsed .card-header .toggle-ico { transform: rotate(-90deg); }

/* --- Stok renk satırları --- */
tr.stock-insufficient, .stock-insufficient > td { background-color: #f8d7da !important; }
tr.stock-critical, .stock-critical > td { background-color: #fff3cd !important; }
tr.stock-sufficient td .stock-dot { color: #198754; }
.stock-dot { font-size: .7rem; }

/* --- Modern Login --- */
.login-wrap {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center; padding: 1rem;
    background: radial-gradient(1200px 600px at 20% -10%, #23508f 0%, transparent 55%),
                linear-gradient(135deg, #17335f 0%, #0f2447 100%);
}
.login-card { width: 100%; max-width: 420px; border: none; border-radius: 18px;
    box-shadow: 0 24px 60px -20px rgba(0,0,0,.55); }
.login-card .logo { max-width: 220px; margin: 0 auto 1rem; display: block; }

/* --- Modern aylık takvim --- */
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.cal-head { text-align: center; font-weight: 700; color: var(--ozd-navy); padding: 6px 0; font-size: .78rem;
    text-transform: uppercase; letter-spacing: .04em; }
.cal-cell { min-height: 108px; border: 1px solid #e9edf3; border-radius: 12px; padding: 6px; background: #fff;
    overflow: hidden; transition: box-shadow .15s; }
.cal-cell:hover { box-shadow: 0 6px 16px -8px rgba(16,33,64,.25); }
.cal-cell.muted { background: #f5f7fa; }
.cal-cell.muted .cal-daynum { color: #b8bcc2; }
.cal-cell.today { border: 2px solid #2f6bd8; background: #f2f7ff; }
.cal-daynum { font-size: .82rem; font-weight: 700; color: #33477a; }
.cal-event { font-size: .7rem; color: #fff; border-radius: 6px; padding: 2px 6px; margin-top: 3px; cursor: pointer;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 500; }
.cal-more { font-size: .68rem; color: var(--ozd-navy); cursor: pointer; margin-top: 2px; }

/* --- Mobil / Basit görünüm yapısal kontrol --- */
.app-bottomnav { display: none; }          /* varsayılan: gizli */
.app-hamburger { display: none; }          /* masaüstünde gizli */
/* Sol menü sabit: içerik kayarken yerinde kalır */
.app-sidebar {
    display: block;
    position: sticky;
    top: 0;
    align-self: flex-start;
    height: 100vh;
    overflow-y: auto;
}
.app-viewtoggle .simple-show { display: none; }   /* normalde "Basit" yazısı */

/* Küçük ekran (telefon): otomatik basit yapı */
@media (max-width: 767.98px) {
    .app-sidebar { display: none; }
    .app-bottomnav { display: flex; }
    .app-hamburger { display: inline-block; }
    main { padding-bottom: 76px !important; }
}

/* "Basit Görünüm" elle açıkken: ekran genişliğinden BAĞIMSIZ (tablet dahil) */
body.simple-mode .app-sidebar { display: none !important; }
body.simple-mode .app-bottomnav { display: flex !important; }
body.simple-mode .app-hamburger { display: inline-block !important; }
body.simple-mode main { padding-bottom: 76px !important; }
body.simple-mode .summary-box .display-6 { font-size: 1.9rem; }
body.simple-mode .app-viewtoggle .simple-hide { display: none; }
body.simple-mode .app-viewtoggle .simple-show { display: inline; }

/* --- Off-canvas çekmece menü (kayan animasyon) --- */
.app-drawer {
    position: fixed; inset: 0; z-index: 1045;
    visibility: hidden;           /* kapalıyken tıklamayı engellemesin */
}
.app-drawer-backdrop {
    position: absolute; inset: 0; background: rgba(0,0,0,.45);
    opacity: 0; transition: opacity .25s ease;
}
.app-drawer-panel {
    position: absolute; top: 0; left: 0; bottom: 0;
    width: 82%; max-width: 300px;
    transform: translateX(-100%);
    transition: transform .25s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;   /* iOS akıcı kaydırma */
    box-shadow: 2px 0 14px rgba(0,0,0,.35);
    min-height: 0;                /* .sidebar 100vh'i ezsin, içerik kaysın */
}
body.drawer-open .app-drawer { visibility: visible; }
body.drawer-open .app-drawer-backdrop { opacity: 1; }
body.drawer-open .app-drawer-panel { transform: translateX(0); }
body.drawer-open { overflow: hidden; }   /* arka plan kaymasın */

/* --- Alt gezinme çubuğu görünüm --- */
.mobile-bottom-nav {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 1040;
    background: #fff; border-top: 1px solid #e0e0e0;
    box-shadow: 0 -2px 10px rgba(0,0,0,.08);
}
.mobile-bottom-nav a {
    flex: 1; text-align: center; padding: .45rem .2rem; color: #6c757d;
    text-decoration: none; font-size: .66rem; line-height: 1.1;
}
.mobile-bottom-nav a .ico { display: block; font-size: 1.35rem; margin-bottom: 1px; }
.mobile-bottom-nav a.active { color: var(--ozd-navy); font-weight: 600; }
.mobile-bottom-nav a.fab .ico {
    background: var(--ozd-navy); color: #fff; border-radius: 50%;
    width: 38px; height: 38px; line-height: 38px; margin: -14px auto 0; box-shadow: 0 2px 6px rgba(0,0,0,.25);
}

/* Mobilde içerik alt çubuğun altında kalmasın + daha ferah dokunma */
@media (max-width: 767.98px) {
    main { padding-bottom: 76px !important; }
    .app-topbar .brand-logo { height: 34px; }
    .btn { padding: .45rem .7rem; }
    h2 { font-size: 1.35rem; }
    .table-responsive { font-size: .9rem; }
    .summary-box .display-6 { font-size: 1.8rem; }
}

.validation-message { color: #d33; font-size: .85rem; }
.blazor-error-boundary {
    background: #b32121; padding: 1rem; color: white;
}
.blazor-error-boundary::after { content: "Bir hata oluştu."; }

/* ===== Fiyat gizleme (teklif hazırlarken) ===== */
.prices-hidden .price-cell { display: none !important; }

/* ===== Grup akordeonu (teklif ürün seçimi) ===== */
.group-acc { border: 1px solid #e3e7ee; border-radius: 12px; overflow: hidden; }
.group-acc .group-head {
    background: #f7f9fc; cursor: pointer; padding: .6rem .9rem; user-select: none;
    border-bottom: 1px solid transparent;
}
.group-acc:not(.collapsed) .group-head { background: #eef3fb; border-bottom-color: #e3e7ee; }
.group-acc .group-head:hover { background: #eef3fb; }
.group-acc .toggle-ico { color: #1a3a6b; font-size: .9rem; }
.group-picker { max-height: 260px; overflow-y: auto; border: 1px solid #eef0f4; border-radius: 8px; }
.group-pick {
    display: flex; align-items: center; width: 100%; gap: .4rem; text-align: left;
    background: #fff; border: none; border-bottom: 1px solid #f1f3f7; padding: .45rem .7rem; font-size: .9rem;
}
.group-pick:last-child { border-bottom: none; }
.group-pick:hover { background: #eef8f0; }
.group-pick .pick-name { flex: 1; }
.group-pick .pick-price { color: #198754; font-weight: 600; white-space: nowrap; }
/* Radyatör bölümündeki "Radyatör" / "Vana" alt başlıkları */
.pick-title { font-size: .78rem; font-weight: 700; color: #5b6573; letter-spacing: .3px; margin-bottom: .25rem; }

/* Ürün sıralama (sürükle-bırak) */
tr[draggable="true"] .drag-cell { cursor: grab; }
tr.row-dragging { opacity: .4; }
/* Bırakılacak yeri gösteren çizgi — sürüklerken satırlar yer değiştirmez, sadece bu görünür */
tr.row-drop-target > td { box-shadow: inset 0 3px 0 -1px #198754; }