/* ===================================================
   IMOPOLS ERP — Flat Professional Design System
   =================================================== */

/* --- RESET & TOKENS --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --sidebar-w: 200px;
    --sidebar-collapsed-w: 52px;
    --topbar-h: 46px;
    --primary: #2563eb;
    --primary-light: #eff6ff;
    --danger: #dc2626;
    --danger-light: #fef2f2;
    --success: #16a34a;
    --success-light: #f0fdf4;
    --warning: #d97706;
    --warning-light: #fffbeb;
    --text: #111827;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --bg: #f9fafb;
    --card: #ffffff;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --sidebar-bg: #111827;
    --sidebar-text: #9ca3af;
    --sidebar-hover: #d1d5db;
    --sidebar-active: rgba(59, 130, 246, 0.12);
    --sidebar-active-text: #93c5fd;
    --radius: 6px;
    --radius-sm: 4px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 13px;
    line-height: 1.5;
    color: var(--text);
    background: var(--bg);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- LAYOUT --- */
.layout {
    display: flex;
    min-height: 100vh;
}

.main-area {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

/* --- SIDEBAR --- */
.sidebar {
    width: var(--sidebar-w);
    min-width: var(--sidebar-w);
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    transition: width 0.2s ease, min-width 0.2s ease;
    overflow: hidden;
}

.sb-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 12px 10px;
}

.sb-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sb-dot {
    width: 8px;
    height: 8px;
    min-width: 8px;
    border-radius: 2px;
    background: var(--primary);
}

.sb-name {
    color: #d1d5db;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.sb-toggle {
    background: none;
    border: none;
    color: #6b7280;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s;
}
.sb-toggle:hover { color: #d1d5db; }

/* Quick actions */
.sb-section { padding: 0 6px 4px; }

.sb-quick {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 5px;
    color: #d1d5db;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    margin-bottom: 1px;
    transition: background 0.12s;
}
.sb-quick:hover { background: rgba(255,255,255,0.06); text-decoration: none; }
.sb-quick svg { min-width: 14px; }

.sb-divider {
    height: 1px;
    background: #1f2937;
    margin: 4px 12px;
}

/* Nav links */
.sb-nav { flex: 1; padding: 4px 6px; overflow-y: auto; }

.sb-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 5px;
    color: var(--sidebar-text);
    font-size: 12px;
    margin-bottom: 1px;
    text-decoration: none;
    transition: color 0.12s, background 0.12s;
    white-space: nowrap;
}
.sb-link:hover { color: var(--sidebar-hover); text-decoration: none; }
.sb-link.on {
    background: var(--sidebar-active);
    color: var(--sidebar-active-text);
    font-weight: 500;
}
.sb-link svg { min-width: 15px; }
.sb-label { white-space: nowrap; overflow: hidden; }

/* User footer */
.sb-user {
    padding: 10px 12px;
    border-top: 1px solid #1f2937;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sb-avatar {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border-radius: 4px;
    background: #1f2937;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    font-size: 10px;
    font-weight: 600;
}

.sb-user-info { flex: 1; min-width: 0; overflow: hidden; }
.sb-user-name { color: #9ca3af; font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sb-logout {
    color: #6b7280;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    transition: color 0.15s;
}
.sb-logout:hover { color: #dc2626; text-decoration: none; }

/* --- COLLAPSED STATE --- */
.sb-collapsed .sidebar {
    width: var(--sidebar-collapsed-w);
    min-width: var(--sidebar-collapsed-w);
}
.sb-collapsed .sb-name,
.sb-collapsed .sb-label,
.sb-collapsed .sb-user-info { display: none; }
.sb-collapsed .sb-top { justify-content: center; padding: 14px 8px 10px; }
.sb-collapsed .sb-logo { justify-content: center; }
.sb-collapsed .sb-toggle svg { transform: rotate(180deg); }
.sb-collapsed .sb-quick { justify-content: center; padding: 8px; }
.sb-collapsed .sb-quick span { display: none; }
.sb-collapsed .sb-link { justify-content: center; padding: 8px; }
.sb-collapsed .sb-user { justify-content: center; padding: 10px 8px; }
.sb-collapsed .sb-logout { display: none; }
.sb-collapsed .sb-section { padding: 0 4px 4px; }
.sb-collapsed .sb-nav { padding: 4px 4px; }
.sb-collapsed .sb-divider { margin: 4px 8px; }

/* --- TOPBAR --- */
.topbar {
    height: var(--topbar-h);
    min-height: var(--topbar-h);
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.topbar-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- MESSAGES --- */
.msg-wrap { padding: 12px 20px 0; }
.msg {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    margin-bottom: 6px;
    border: 1px solid var(--border);
    background: var(--card);
}
.msg-success { border-color: #bbf7d0; background: #f0fdf4; color: #166534; }
.msg-warning { border-color: #fde68a; background: #fffbeb; color: #92400e; }
.msg-error { border-color: #fecaca; background: #fef2f2; color: #991b1b; }

/* --- CONTENT --- */
.content { flex: 1; padding: 16px 20px; overflow-y: auto; }

/* --- CARDS --- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 12px;
}

.card-header {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title { font-size: 13px; font-weight: 600; color: var(--text); }
.card-body { padding: 14px; }

/* --- KPI CARDS --- */
.kpi-grid { display: grid; gap: 10px; margin-bottom: 14px; }
.kpi-grid-4 { grid-template-columns: repeat(4, 1fr); }
.kpi-grid-3 { grid-template-columns: repeat(3, 1fr); }

.kpi {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
}
.kpi-label {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.kpi-value {
    font-size: 22px;
    font-weight: 600;
    margin-top: 4px;
    line-height: 1;
}
.kpi-sub { font-size: 10px; color: var(--text-muted); margin-top: 3px; }

.kpi-danger .kpi-value { color: var(--danger); }
.kpi-success .kpi-value { color: var(--success); }
.kpi-warning .kpi-value { color: var(--warning); }

/* --- TABLES --- */
table { width: 100%; border-collapse: collapse; }

th {
    text-align: left;
    padding: 7px 14px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: #f9fafb;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 8px 14px;
    font-size: 12px;
    color: var(--text);
    border-bottom: 1px solid var(--border-light);
}

tr:last-child td { border-bottom: none; }

tr[data-href] { cursor: pointer; }
tr[data-href]:hover { background: #f9fafb; }

/* --- BADGES --- */
.badge {
    display: inline-block;
    padding: 2px 7px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
    line-height: 1.4;
}
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-info { background: var(--primary-light); color: var(--primary); }
.badge-muted { background: var(--border-light); color: var(--text-secondary); }

/* --- BUTTONS --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    transition: opacity 0.12s;
    line-height: 1.4;
}
.btn:hover { opacity: 0.9; text-decoration: none; }

.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-outline { background: var(--card); color: var(--text); border-color: var(--border); }
.btn-danger { background: var(--card); color: var(--danger); border-color: #fecaca; }
.btn-success { background: var(--card); color: var(--success); border-color: #bbf7d0; }
.btn-sm { padding: 3px 8px; font-size: 11px; }

/* --- FORMS --- */
.form-grid { display: grid; gap: 10px; }
.form-grid-2 { grid-template-columns: 1fr 1fr; }
.form-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-grid-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }

.fg { margin-bottom: 0; }
.fg label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

input, select, textarea {
    width: 100%;
    padding: 6px 10px;
    font-size: 12px;
    color: var(--text);
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    line-height: 1.4;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-light);
}

textarea { resize: vertical; min-height: 60px; }

/* Search input (topbar) */
.search-input {
    padding: 5px 10px 5px 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12px;
    background: var(--bg);
    color: var(--text);
    width: 200px;
    transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--primary); background: var(--card); }
.search-input::placeholder { color: var(--text-muted); }

.search-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.search-wrap svg {
    position: absolute;
    left: 8px;
    color: var(--text-muted);
    pointer-events: none;
}

/* --- LAYOUT GRID (content) --- */
.grid-main { display: grid; gap: 12px; }
.grid-main-sidebar { grid-template-columns: 1fr 260px; }

/* --- SIDEBAR LISTS (dashboard) --- */
.side-list { list-style: none; }
.side-item {
    padding: 8px 14px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.side-item:last-child { border-bottom: none; }
.side-main { font-size: 12px; color: var(--primary); font-weight: 500; }
.side-sub { font-size: 10px; color: var(--text-muted); margin-top: 1px; }

/* --- PAGE HEADER (detail pages) --- */
.page-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 14px;
}
.meta-item { }
.meta-label {
    font-size: 10px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.meta-value { font-size: 13px; margin-top: 2px; }

/* --- FOLDER (case detail) --- */
.folder { margin-bottom: 8px; }
.folder-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: #f9fafb;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    user-select: none;
    margin-bottom: 4px;
}
.folder-toggle:hover { background: #f3f4f6; }
.folder-toggle .arrow { transition: transform 0.15s; }
.folder-toggle.collapsed .arrow { transform: rotate(-90deg); }
.folder-body { }
.folder-body.hidden { display: none; }

/* --- UTILITIES --- */
.text-muted { color: var(--text-secondary); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.gap-2 { gap: 8px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.flex-gap { gap: 8px; }
.inline { display: inline; }
.hidden { display: none; }
.w-full { width: 100%; }

/* --- RESPONSIVE --- */
@media (max-width: 900px) {
    .layout { flex-direction: column; }
    .sidebar { width: 100%; min-width: 100%; flex-direction: row; height: auto; }
    .sb-nav { display: flex; overflow-x: auto; padding: 4px; }
    .sb-link { white-space: nowrap; }
    .sb-top, .sb-user, .sb-section, .sb-divider { display: none; }
    .content { padding: 12px; }
    .kpi-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-main-sidebar { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .kpi-grid-4 { grid-template-columns: 1fr; }
    .kpi-grid-3 { grid-template-columns: 1fr; }
    .topbar { padding: 0 12px; }
    .topbar-right { display: none; }
}