/* =====================================================================
   Apartman Yönetim Sistemi — Tasarım Sistemi
   Bootstrap 5 üzerine kurulu; renkler ve bileşenler CSS değişkenleriyle
   tek noktadan yönetilir.
   ===================================================================== */

:root {
    /* Marka paleti */
    --brand-600: #4f46e5;
    --brand-700: #4338ca;
    --brand-100: #e0e7ff;
    --brand-50: #eef2ff;

    /* Nötrler (slate) */
    --ink-900: #0f172a;
    --ink-800: #1e293b;
    --ink-600: #475569;
    --ink-400: #94a3b8;
    --ink-200: #e2e8f0;
    --ink-100: #f1f5f9;

    /* Durum renkleri */
    --ok-600: #059669;
    --ok-100: #d1fae5;
    --warn-600: #d97706;
    --warn-100: #fef3c7;
    --err-600: #dc2626;
    --err-100: #fee2e2;

    --sidebar-width: 250px;
    --topbar-height: 60px;
    --radius: 12px;
    --shadow-card: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .04);
}

html { font-size: 15px; }

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--ink-100);
    color: var(--ink-800);
    margin: 0;
}

/* ------------------------------------------------ Uygulama iskeleti */

.app-shell { display: flex; min-height: 100vh; }

.app-sidebar {
    width: var(--sidebar-width);
    background: var(--ink-900);
    color: var(--ink-200);
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 1040;
    transition: transform .25s ease;
}

.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: 1rem 1.25rem;
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.sidebar-brand .brand-icon {
    width: 34px; height: 34px;
    border-radius: 9px;
    background: var(--brand-600);
    display: grid; place-items: center;
    font-size: 1.1rem;
}

.sidebar-section {
    padding: 1rem 1.25rem .35rem;
    font-size: .7rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ink-400);
}

.sidebar-nav { list-style: none; margin: 0; padding: 0 .75rem; }

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .55rem .75rem;
    margin-bottom: 2px;
    border-radius: 8px;
    color: var(--ink-200);
    text-decoration: none;
    font-size: .92rem;
    transition: background .15s;
}

.sidebar-nav a:hover { background: var(--ink-800); color: #fff; }
.sidebar-nav a.active { background: var(--brand-600); color: #fff; }
.sidebar-nav .nav-icon { width: 1.15rem; text-align: center; opacity: .85; }

.sidebar-footer {
    margin-top: auto;
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, .08);
    font-size: .8rem;
    color: var(--ink-400);
}

/* Topbar */
.app-topbar {
    height: var(--topbar-height);
    background: #fff;
    border-bottom: 1px solid var(--ink-200);
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.topbar-title { font-weight: 600; color: var(--ink-900); font-size: 1rem; margin: 0; }
.topbar-context { color: var(--ink-400); font-size: .85rem; }

.topbar-user {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: .75rem;
}

.user-chip {
    display: flex;
    align-items: center;
    gap: .55rem;
    text-decoration: none;
    color: var(--ink-800);
    padding: .3rem .6rem;
    border-radius: 999px;
}

.user-chip:hover { background: var(--ink-100); color: var(--ink-900); }

.avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--brand-100);
    color: var(--brand-700);
    display: grid; place-items: center;
    font-weight: 700;
    font-size: .85rem;
}

.app-content { padding: 1.5rem; flex: 1; }

/* ------------------------------------------------ Sayfa başlığı */

.page-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .75rem;
    margin-bottom: 1.25rem;
}

.page-header h1 { font-size: 1.35rem; font-weight: 700; color: var(--ink-900); margin: 0; }
.page-header .subtitle { color: var(--ink-600); font-size: .9rem; width: 100%; margin: 0; }
.page-header .actions { margin-left: auto; display: flex; gap: .5rem; }

/* ------------------------------------------------ Kartlar & tablolar */

.panel {
    background: #fff;
    border: 1px solid var(--ink-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.panel-body { padding: 1.25rem; }

.panel-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--ink-200);
    font-weight: 600;
    color: var(--ink-900);
    display: flex;
    align-items: center;
    gap: .5rem;
}

.panel-header .actions { margin-left: auto; }

.stat-card {
    background: #fff;
    border: 1px solid var(--ink-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 1.1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 100%;
}

.stat-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: grid; place-items: center;
    font-size: 1.2rem;
    background: var(--brand-50);
    color: var(--brand-600);
    flex-shrink: 0;
}

.stat-icon.ok { background: var(--ok-100); color: var(--ok-600); }
.stat-icon.warn { background: var(--warn-100); color: var(--warn-600); }
.stat-icon.err { background: var(--err-100); color: var(--err-600); }

.stat-value { font-size: 1.45rem; font-weight: 700; color: var(--ink-900); line-height: 1.1; }
.stat-label { font-size: .82rem; color: var(--ink-600); }

.table-panel { margin: 0; }
.table-panel thead th {
    background: var(--ink-100);
    color: var(--ink-600);
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    font-weight: 600;
    border-bottom: 1px solid var(--ink-200);
    padding: .65rem 1rem;
    white-space: nowrap;
}
.table-panel tbody td { padding: .7rem 1rem; vertical-align: middle; }
.table-panel tbody tr:hover { background: var(--brand-50); }

/* Rozetler */
.badge-soft {
    display: inline-block;
    padding: .28em .7em;
    border-radius: 999px;
    font-size: .76rem;
    font-weight: 600;
}
.badge-soft.brand { background: var(--brand-100); color: var(--brand-700); }
.badge-soft.ok { background: var(--ok-100); color: var(--ok-600); }
.badge-soft.warn { background: var(--warn-100); color: var(--warn-600); }
.badge-soft.err { background: var(--err-100); color: var(--err-600); }
.badge-soft.muted { background: var(--ink-100); color: var(--ink-600); }

/* Butonlar: Bootstrap primary'yi marka rengine bağla */
.btn-primary {
    --bs-btn-bg: var(--brand-600);
    --bs-btn-border-color: var(--brand-600);
    --bs-btn-hover-bg: var(--brand-700);
    --bs-btn-hover-border-color: var(--brand-700);
    --bs-btn-active-bg: var(--brand-700);
    --bs-btn-active-border-color: var(--brand-700);
}

.btn-outline-primary {
    --bs-btn-color: var(--brand-600);
    --bs-btn-border-color: var(--brand-600);
    --bs-btn-hover-bg: var(--brand-600);
    --bs-btn-hover-border-color: var(--brand-600);
    --bs-btn-active-bg: var(--brand-700);
    --bs-btn-active-border-color: var(--brand-700);
}

.form-control:focus, .form-select:focus {
    border-color: var(--brand-600);
    box-shadow: 0 0 0 .2rem rgba(79, 70, 229, .15);
}

/* ------------------------------------------------ Boş durum */

.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--ink-600);
}

.empty-state .empty-icon {
    width: 64px; height: 64px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--ink-100);
    display: grid; place-items: center;
    font-size: 1.6rem;
    color: var(--ink-400);
}

.empty-state h5 { color: var(--ink-900); font-weight: 600; }
.empty-state p { max-width: 420px; margin: .25rem auto 1rem; font-size: .9rem; }

/* ------------------------------------------------ Giriş ekranı */

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: linear-gradient(155deg, var(--ink-900) 0%, #1e1b4b 55%, var(--brand-700) 100%);
    padding: 1.5rem;
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(2, 6, 23, .45);
    padding: 2.25rem 2rem;
}

.auth-brand { text-align: center; margin-bottom: 1.5rem; }
.auth-brand .brand-icon {
    width: 52px; height: 52px;
    margin: 0 auto .75rem;
    border-radius: 14px;
    background: var(--brand-600);
    color: #fff;
    display: grid; place-items: center;
    font-size: 1.5rem;
}
.auth-brand h1 { font-size: 1.2rem; font-weight: 700; color: var(--ink-900); margin: 0; }
.auth-brand p { color: var(--ink-600); font-size: .85rem; margin: .25rem 0 0; }

/* ------------------------------------------------ Kimlik fişi (yazdırılabilir) */

.credential-slip {
    border: 2px dashed var(--ink-400);
    border-radius: var(--radius);
    padding: 1.5rem;
    max-width: 480px;
    background: #fff;
}

.credential-slip dt { color: var(--ink-600); font-weight: 500; font-size: .85rem; }
.credential-slip dd {
    font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ink-900);
}

@media print {
    .app-sidebar, .app-topbar, .no-print { display: none !important; }
    .app-main { margin-left: 0 !important; }
    .app-content { padding: 0; }
    body { background: #fff; }
}

/* ------------------------------------------------ Mobil */

.sidebar-toggle { display: none; }

@media (max-width: 991.98px) {
    .app-sidebar { transform: translateX(-100%); }
    .app-sidebar.open { transform: translateX(0); }
    .app-main { margin-left: 0; }
    .sidebar-toggle {
        display: inline-flex;
        background: none;
        border: 0;
        font-size: 1.3rem;
        color: var(--ink-800);
        padding: .25rem .5rem;
    }
    .sidebar-backdrop {
        position: fixed; inset: 0;
        background: rgba(15, 23, 42, .5);
        z-index: 1035;
        display: none;
    }
    .sidebar-backdrop.show { display: block; }
    .app-content { padding: 1rem; }
    .topbar-context { display: none; }
}