/* ============================================================
   GLOBAL RESET & BASE
   Matches review page aesthetic — DM Sans + DM Mono,
   deep dark surfaces, accent blue
============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
    --bg-base:        #0d0f12;
    --bg-surface:     #13161b;
    --bg-raised:      #1a1e26;
    --bg-hover:       #20252f;
    --border:         #252a35;
    --border-subtle:  #1e2330;
    --text-primary:   #e8eaf0;
    --text-secondary: #8a91a0;
    --text-muted:     #4a5060;
    --accent:         #4f8ef7;
    --accent-glow:    rgba(79, 142, 247, 0.15);
    --accent-hover:   #6ba3ff;
    --green:          #3dba6e;
    --amber:          #e8a030;
    --red:            #e05252;
    --font-ui:        'DM Sans', sans-serif;
    --font-mono:      'DM Mono', monospace;
    --nav-height:     52px;
    --nav-collapsed:  0px;
    --toggle-height:  22px;
    --radius-sm:      4px;
    --radius-md:      8px;
    --radius-lg:      12px;
    --shadow-sm:      0 1px 3px rgba(0,0,0,0.4);
    --shadow-md:      0 4px 16px rgba(0,0,0,0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: var(--font-ui);
    background: var(--bg-base);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ============================================================
   TOP NAV BAR
============================================================ */

.topnav {
    width: 100%;
    height: var(--nav-height);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 16px 0 20px;
    gap: 4px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: height 0.22s ease, opacity 0.22s ease;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* Collapsed: slide nav up out of view */
.topnav.topnav-collapsed {
    height: var(--nav-collapsed);
    opacity: 0;
    pointer-events: none;
    border-bottom-color: transparent;
}

.topnav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

.topnav a:hover {
    background: var(--bg-raised);
    color: var(--text-primary);
}

.topnav a.active {
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid rgba(79, 142, 247, 0.25);
}

.topnav-right {
    margin-left: auto;
    display: flex;
    gap: 8px;
    align-items: center;
}

/* ============================================================
   TOGGLE BUTTON
   Fixed position — always visible, never squished
============================================================ */

.topnav-toggle {
    position: fixed;
    top: 0;
    right: 16px;
    z-index: 1100;
    height: var(--toggle-height);
    padding: 0 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-raised);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    color: var(--text-muted);
    font-size: 9px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, top 0.22s ease;
    letter-spacing: 0.05em;
    min-width: 48px;
}

/* When nav is open, toggle sits flush under the nav bottom edge */
.topnav-toggle {
    top: var(--nav-height);
}

/* When nav is collapsed, toggle sits at the very top */
body.topnav-collapsed .topnav-toggle {
    top: 0;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    color: var(--accent);
    border-color: rgba(79, 142, 247, 0.3);
    background: var(--bg-surface);
}

.topnav-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ============================================================
   MAIN CONTENT
   Offset by nav height; shrinks when nav collapses
============================================================ */

.main-content {
    flex: 1;
    padding: 28px;
    padding-top: calc(var(--nav-height) + var(--toggle-height) + 16px);
    overflow-y: auto;
    background: var(--bg-base);
    min-height: 100vh;
    width: 100%;
    transition: padding-top 0.22s ease;
    position: relative;
    z-index: 1;
}

body.topnav-collapsed .main-content {
    padding-top: calc(var(--toggle-height) + 16px);
}

/* ============================================================
   HEADINGS & TEXT
============================================================ */

h1, h2, h3 {
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    font-family: var(--font-ui);
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }

p {
    margin-bottom: 12px;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ============================================================
   CARDS
============================================================ */

.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

/* ============================================================
   TABLES
============================================================ */

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
}

th, td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border-subtle);
    text-align: left;
    font-size: 0.875rem;
}

th {
    background: var(--bg-raised);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.72rem;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    font-family: var(--font-mono);
}

td {
    color: var(--text-primary);
}

tr:hover td {
    background: var(--bg-hover);
}

/* ============================================================
   FORMS & INPUTS
============================================================ */

input[type="text"],
input[type="number"],
input[type="date"],
input[type="password"],
select,
textarea {
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font-ui);
    width: 100%;
    background: var(--bg-raised);
    color: var(--text-primary);
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-family: var(--font-mono);
    display: block;
    margin-bottom: 5px;
}

.form-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

/* ============================================================
   BUTTONS
============================================================ */

button, .btn {
    padding: 7px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    cursor: pointer;
    font-size: 0.875rem;
    font-family: var(--font-ui);
    font-weight: 500;
    background: var(--bg-raised);
    color: var(--text-primary);
    transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

button:hover, .btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 8px var(--accent-glow);
}

button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.danger-btn {
    color: var(--red);
    border-color: rgba(224, 82, 82, 0.3);
    background: transparent;
}

.danger-btn:hover {
    background: rgba(224, 82, 82, 0.12);
    border-color: var(--red);
    color: var(--red);
    box-shadow: none;
}

.global-sync-btn {
    font-size: 0.82rem;
}

/* ============================================================
   BADGES
============================================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    font-family: var(--font-mono);
}

.badge.success {
    background: rgba(61, 186, 110, 0.12);
    color: var(--green);
    border: 1px solid rgba(61, 186, 110, 0.25);
}

.badge.warning {
    background: rgba(232, 160, 48, 0.12);
    color: var(--amber);
    border: 1px solid rgba(232, 160, 48, 0.25);
}

.badge.danger {
    background: rgba(224, 82, 82, 0.12);
    color: var(--red);
    border: 1px solid rgba(224, 82, 82, 0.25);
}

/* ============================================================
   UTILITY CLASSES
============================================================ */

.text-sm     { font-size: 0.875rem; }
.text-xs     { font-size: 0.75rem; }
.text-muted  { color: var(--text-muted); }
.font-mono   { font-family: var(--font-mono); }
.w-full      { width: 100%; }
.relative    { position: relative; }
.hidden      { display: none !important; }
.shadow-lg   { box-shadow: var(--shadow-md); }
.action-btn  { font-size: 0.8rem; padding: 5px 12px; }
.right-align { display: flex; gap: 6px; justify-content: flex-end; }

/* ============================================================
   PAGE HEADER  (PowerBI-style: label | title | actions)
============================================================ */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0 14px;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
    gap: 16px;
}

.page-header-left {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.page-header-label {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.page-header h1,
.page-header h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.01em;
}

.page-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* ============================================================
   USER PREFERENCE OVERRIDES
============================================================ */

/* Compact rows */
body.pref-compact th,
body.pref-compact td {
    padding: 5px 10px !important;
}

/* Large text */
body.pref-large-text td,
body.pref-large-text .review-table td,
body.pref-large-text .lineitem-table td {
    font-size: 1rem !important;
}

/* Highlight required fields */
body.pref-highlight-required select.needs-review,
body.pref-highlight-required input.needs-review {
    border-color: var(--amber) !important;
    box-shadow: 0 0 0 2px rgba(232,160,48,0.22) !important;
}