/* ============================================================
   Construction OS — App Styles
   ============================================================ */

:root {
    --sidebar-width:     240px;
    --sidebar-bg:        #1a1f2e;
    --sidebar-text:      #a8b2c8;
    --sidebar-hover:     rgba(255,255,255,.07);
    --sidebar-active-bg: rgba(255,165,0,.15);
    --sidebar-active:    #ffa500;
    --topbar-h:          60px;
    --topbar-bg:         #ffffff;
    --topbar-border:     #e9ecef;
    --body-bg:           #f4f6fa;
    --card-bg:           #ffffff;
    --card-border:       #e9ecef;
    --card-radius:       .75rem;
    --text-primary:      #1a1f2e;
    --text-muted:        #6c757d;
    --accent:            #ff6b00;
    --accent-hover:      #e55d00;
    --success:           #28a745;
    --warning:           #ffc107;
    --danger:            #dc3545;
    --info:              #17a2b8;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; }

body.app-body {
    margin: 0;
    background: var(--body-bg);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    font-size: .9rem;
}

/* ---- Layout ---- */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    margin-left: var(--sidebar-width);
    transition: margin-left .25s ease;
}

/* ---- Sidebar ---- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1040;
    transition: transform .25s ease;
    padding-bottom: 1rem;
}

.sidebar-brand {
    padding: 1.25rem 1rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,.07);
}

.brand-link {
    display: flex;
    align-items: center;
    gap: .6rem;
    text-decoration: none;
    color: #ffffff;
}

.brand-icon {
    font-size: 1.5rem;
    color: var(--accent);
}

.brand-name {
    font-weight: 700;
    font-size: .95rem;
    line-height: 1.2;
    letter-spacing: -.01em;
}

.sidebar-nav {
    padding: .5rem 0;
}

.nav-section-label {
    list-style: none;
    padding: .65rem 1rem .25rem;
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: rgba(255,255,255,.3);
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .5rem 1rem;
    color: var(--sidebar-text);
    border-radius: 0;
    transition: background .15s, color .15s;
    font-size: .87rem;
    white-space: nowrap;
}

.sidebar-nav .nav-link i {
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-nav .nav-link:hover {
    background: var(--sidebar-hover);
    color: #fff;
}

.sidebar-nav .nav-link.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active);
    font-weight: 600;
    border-left: 3px solid var(--sidebar-active);
}

.sidebar-footer {
    padding: .5rem 0;
    border-top: 1px solid rgba(255,255,255,.07);
    margin-top: .5rem;
}

.sidebar-footer .nav-link {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .5rem 1rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: .87rem;
    transition: color .15s;
}

.sidebar-footer .nav-link:hover { color: #fff; }
.sidebar-footer .nav-link.text-danger:hover { color: #ff6b6b !important; }

/* ---- Topbar ---- */
.topbar {
    height: var(--topbar-h);
    background: var(--topbar-bg);
    border-bottom: 1px solid var(--topbar-border);
    position: sticky;
    top: 0;
    z-index: 1030;
}

.topbar-title {
    font-size: .9rem;
    color: var(--text-muted);
}

.avatar-circle {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: .8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ---- Page Content Area ---- */
.page-content {
    padding: 1.5rem;
    flex: 1;
}

.page-header {
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: .2rem;
}

/* ---- Cards ---- */
.app-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--card-radius);
    padding: 1.25rem 1.5rem;
    transition: box-shadow .2s;
}

.app-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.06); }

/* Stat cards */
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--card-radius);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: box-shadow .2s, transform .2s;
}

.stat-card:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,.07);
    transform: translateY(-1px);
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: .75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.stat-icon-orange  { background: rgba(255,107,0,.12);  color: #ff6b00; }
.stat-icon-blue    { background: rgba(13,110,253,.12);  color: #0d6efd; }
.stat-icon-green   { background: rgba(25,135,84,.12);   color: #198754; }
.stat-icon-yellow  { background: rgba(255,193,7,.15);   color: #d4a000; }
.stat-icon-purple  { background: rgba(111,66,193,.12);  color: #6f42c1; }
.stat-icon-teal    { background: rgba(13,202,240,.12);  color: #0dcaf0; }

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text-primary);
}

.stat-label {
    font-size: .78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-top: .15rem;
}

/* ---- Buttons ---- */
.btn-accent {
    background: var(--accent);
    color: #fff;
    border: none;
}

.btn-accent:hover {
    background: var(--accent-hover);
    color: #fff;
}

/* ---- Tables ---- */
.table-app {
    --bs-table-bg: transparent;
    font-size: .88rem;
}

.table-app thead th {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom-width: 1px;
    padding: .65rem .75rem;
}

.table-app td { padding: .65rem .75rem; vertical-align: middle; }

/* ---- Alert / Toast ---- */
.toast-body { font-size: .87rem; }

/* ---- Badges ---- */
.bg-purple { background-color: #6f42c1 !important; }

/* ---- Login Page ---- */
.login-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #1a1f2e 0%, #2d3450 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: #fff;
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,.25);
}

.login-logo { font-size: 2rem; color: var(--accent); }
.login-title { font-weight: 700; font-size: 1.4rem; }

/* ---- Empty State ---- */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state i { font-size: 3rem; opacity: .3; }
.empty-state p { margin-top: .75rem; }

/* ---- Mobile ---- */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,.5);
        z-index: 1035;
    }

    .sidebar-overlay.show { display: block; }
}

/* ---- HTMX Loading indicator ---- */
.htmx-indicator {
    opacity: 0;
    transition: opacity .2s;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    opacity: 1;
}

/* ---- Scrollbar ---- */
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 2px; }