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

/* ── Design Tokens ───────────────────────────────────────────────────── */
:root {
    --primary:       #1D7A78;
    --primary-dark:  #155a58;
    --primary-light: #e6f4f4;
    --accent:        #E59E0B;
    --accent-dark:   #c98a09;
    --accent-light:  #fef9ee;
    --text:          #1e293b;
    --text-muted:    #64748b;
    --border:        #e2e8f0;
    --bg:            #f1f5f9;
    --white:         #ffffff;
    --danger:        #ef4444;
    --danger-light:  #fee2e2;
    --success:       #22c55e;
    --success-light: #dcfce7;
    --warning:       #f59e0b;
    --warning-light: #fef3c7;
    --sidebar-w:     220px;
    --topbar-h:      54px;
    --radius:        6px;
    --radius-lg:     10px;
    --shadow-sm:     0 1px 3px rgba(0,0,0,0.07);
    --shadow:        0 4px 12px rgba(0,0,0,0.08);
    --font:          'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ── Reset ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font); font-size: 14px; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }

/* ── App Layout ──────────────────────────────────────────────────────── */
.app-layout  { display: flex; min-height: 100vh; }
.main-area   { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.page-content { flex: 1; padding: 24px; }

/* ── Sidebar ─────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    background: var(--primary);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; bottom: 0; left: 0;
    z-index: 200;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.2) transparent;
}
.sidebar-logo          { padding: 18px 16px 16px; border-bottom: 1px solid rgba(255,255,255,0.12); }
.sidebar-logo .brand   { color: #fff; font-size: 17px; font-weight: 700; letter-spacing: 0.3px; }
.sidebar-logo .sub     { color: rgba(255,255,255,0.55); font-size: 11px; margin-top: 2px; }
.nav-section           { padding-top: 8px; }
.nav-group-label       { padding: 14px 16px 5px; color: rgba(255,255,255,0.45); font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; }
.nav-item {
    display: flex; align-items: center; gap: 9px;
    padding: 9px 16px;
    color: rgba(255,255,255,0.78);
    font-size: 13px; font-weight: 500;
    transition: background 0.14s, color 0.14s;
    border-left: 3px solid transparent;
    cursor: pointer;
}
.nav-item:hover  { background: rgba(255,255,255,0.1); color: #fff; }
.nav-item.active { background: rgba(255,255,255,0.15); color: #fff; border-left-color: var(--accent); }
.nav-icon        { font-size: 14px; width: 18px; text-align: center; }

/* ── Topbar ──────────────────────────────────────────────────────────── */
.topbar {
    height: var(--topbar-h);
    background: var(--white);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 24px;
    position: sticky; top: 0; z-index: 100;
    box-shadow: var(--shadow-sm);
}
.topbar-left  { display: flex; align-items: center; gap: 10px; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.page-title   { font-size: 16px; font-weight: 600; color: var(--text); }
.user-name    { font-size: 13px; font-weight: 500; color: var(--text-muted); }

/* ── Buttons ─────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 15px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 13px; font-weight: 500; font-family: var(--font);
    cursor: pointer; transition: all 0.15s;
    text-decoration: none; white-space: nowrap;
    line-height: 1.4;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary  { background: var(--primary);  color: #fff; border-color: var(--primary); }
.btn-primary:hover  { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-accent   { background: var(--accent);   color: #fff; border-color: var(--accent); }
.btn-accent:hover   { background: var(--accent-dark);  border-color: var(--accent-dark); }
.btn-outline  { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover  { background: var(--primary-light); }
.btn-danger   { background: var(--danger);   color: #fff; border-color: var(--danger); }
.btn-danger:hover   { background: #dc2626;   border-color: #dc2626; }
.btn-ghost    { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn-ghost:hover    { background: var(--bg); color: var(--text); }
.btn-sm       { padding: 4px 10px; font-size: 12px; }

/* ── Form Controls ───────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-label {
    font-size: 11px; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.form-control {
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 13px; font-family: var(--font); color: var(--text);
    background: var(--white);
    transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
}
.form-control:focus   { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(29,122,120,0.1); }
.form-control:disabled { background: var(--bg); color: var(--text-muted); cursor: default; }
select.form-control   { cursor: pointer; }

/* ── Cards ───────────────────────────────────────────────────────────── */
.card         { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.card-header  { padding: 13px 18px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 14px; display: flex; align-items: center; justify-content: space-between; }
.card-body    { padding: 18px; }

/* ── Badges ──────────────────────────────────────────────────────────── */
.badge         { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; white-space: nowrap; }
.badge-success { background: var(--success-light); color: #15803d; }
.badge-danger  { background: var(--danger-light);  color: #b91c1c; }
.badge-warning { background: var(--warning-light); color: #92400e; }
.badge-muted   { background: var(--bg);            color: var(--text-muted); }
.badge-primary { background: var(--primary-light); color: var(--primary-dark); }

/* ── Tabs ────────────────────────────────────────────────────────────── */
.tabs-bar      { display: flex; border-bottom: 2px solid var(--border); gap: 0; margin-bottom: 20px; }
.tab-btn       { padding: 9px 18px; border: none; background: transparent; color: var(--text-muted); font-size: 13px; font-weight: 500; font-family: var(--font); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all 0.15s; }
.tab-btn:hover { color: var(--text); background: var(--bg); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel      { display: none; }
.tab-panel.active { display: block; }

/* ── Page Header ─────────────────────────────────────────────────────── */
.page-header       { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.page-header-left  { display: flex; align-items: center; gap: 12px; }
.page-header-right { display: flex; align-items: center; gap: 8px; }
.order-count       { font-size: 14px; font-weight: 500; color: var(--text-muted); }

/* ── Field Grid ──────────────────────────────────────────────────────── */
.field-row    { display: grid; gap: 14px; margin-bottom: 14px; }
.cols-2  { grid-template-columns: repeat(2, 1fr); }
.cols-3  { grid-template-columns: repeat(3, 1fr); }
.cols-4  { grid-template-columns: repeat(4, 1fr); }
.cols-6  { grid-template-columns: repeat(6, 1fr); }
.col-span-2 { grid-column: span 2; }

/* ── Action Panel ────────────────────────────────────────────────────── */
.action-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-top: 12px;
    background: var(--bg);
    display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap;
}
.action-panel .form-group { min-width: 160px; }

/* ── Utilities ───────────────────────────────────────────────────────── */
.text-muted    { color: var(--text-muted); }
.text-danger   { color: var(--danger); }
.text-success  { color: #15803d; }
.fw-600        { font-weight: 600; }
.mt-1 { margin-top: 8px;  }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px;  }
.mb-2 { margin-bottom: 16px; }
.hidden { display: none !important; }
.flex  { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 16px; }

/* ── Modal ───────────────────────────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 500;
}
.modal-box {
    display: none;
    position: fixed;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 560px;
    z-index: 501;
    max-height: 90vh;
    overflow-y: auto;
}
.modal-overlay.open,
.modal-box.open     { display: block; }
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
}
.modal-title  { font-size: 15px; font-weight: 600; color: var(--text); }
.modal-close  {
    background: none; border: none; cursor: pointer;
    font-size: 16px; color: var(--text-muted); line-height: 1;
    padding: 2px 6px; border-radius: var(--radius);
}
.modal-close:hover { background: var(--bg); color: var(--text); }
.modal-body   { padding: 18px; }
.modal-footer {
    padding: 12px 18px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: flex-end; gap: 8px;
}

/* ── Form Section Title ──────────────────────────────────────────────── */
.form-section-title {
    font-size:      11px;
    font-weight:    700;
    color:          var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin:         20px 0 10px;
    padding-bottom: 6px;
    border-bottom:  1px solid var(--border);
}