/* ============================================================
   MRP Manager – style.css
   Nexus Design System · Satoshi font · Light + Dark mode
   ============================================================ */

/* ── Google/Fontshare already loaded in <head> ── */

/* ── Design Tokens ─────────────────────────────────────────── */
:root, [data-theme="light"] {
  --color-bg:               #f7f6f2;
  --color-surface:          #f9f8f5;
  --color-surface-2:        #fbfbf9;
  --color-surface-offset:   #f3f0ec;
  --color-surface-offset-2: #edeae5;
  --color-surface-dynamic:  #e6e4df;
  --color-divider:          #dcd9d5;
  --color-border:           #d4d1ca;

  --color-text:             #28251d;
  --color-text-muted:       #7a7974;
  --color-text-faint:       #bab9b4;
  --color-text-inverse:     #f9f8f4;

  --color-primary:          #01696f;
  --color-primary-hover:    #0c4e54;
  --color-primary-active:   #0f3638;
  --color-primary-highlight:#cedcd8;

  --color-success:          #437a22;
  --color-success-bg:       #d4dfcc;
  --color-error:            #a12c7b;
  --color-error-bg:         #e0ced7;
  --color-warning:          #964219;
  --color-warning-bg:       #ddcfc6;
  --color-danger:           #a13544;
  --color-danger-hover:     #782b33;
  --color-danger-bg:        #dececb;

  --font-body:    'Satoshi', 'Inter', sans-serif;
  --font-display: 'Satoshi', 'Inter', sans-serif;

  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --sidebar-w: 240px;
  --topbar-h:  60px;
}

[data-theme="dark"] {
  --color-bg:               #171614;
  --color-surface:          #1c1b19;
  --color-surface-2:        #201f1d;
  --color-surface-offset:   #1d1c1a;
  --color-surface-offset-2: #22211f;
  --color-surface-dynamic:  #2d2c2a;
  --color-divider:          #262523;
  --color-border:           #393836;
  --color-text:             #cdccca;
  --color-text-muted:       #797876;
  --color-text-faint:       #5a5957;
  --color-text-inverse:     #2b2a28;
  --color-primary:          #4f98a3;
  --color-primary-hover:    #227f8b;
  --color-primary-active:   #1a626b;
  --color-primary-highlight:#313b3b;
  --color-success:          #6daa45;
  --color-success-bg:       #3a4435;
  --color-error:            #d163a7;
  --color-error-bg:         #4c3d46;
  --color-warning:          #bb653b;
  --color-warning-bg:       #564942;
  --color-danger:           #dd6974;
  --color-danger-hover:     #c24a59;
  --color-danger-bg:        #574848;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:               #171614;
    --color-surface:          #1c1b19;
    --color-surface-2:        #201f1d;
    --color-surface-offset:   #1d1c1a;
    --color-surface-offset-2: #22211f;
    --color-surface-dynamic:  #2d2c2a;
    --color-divider:          #262523;
    --color-border:           #393836;
    --color-text:             #cdccca;
    --color-text-muted:       #797876;
    --color-text-faint:       #5a5957;
    --color-text-inverse:     #2b2a28;
    --color-primary:          #4f98a3;
    --color-primary-hover:    #227f8b;
    --color-primary-active:   #1a626b;
    --color-primary-highlight:#313b3b;
    --color-success:          #6daa45;
    --color-success-bg:       #3a4435;
    --color-error:            #d163a7;
    --color-error-bg:         #4c3d46;
    --color-warning:          #bb653b;
    --color-warning-bg:       #564942;
    --color-danger:           #dd6974;
    --color-danger-hover:     #c24a59;
    --color-danger-bg:        #574848;
  }
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100dvh;
  line-height: 1.6;
}

img, svg { display: block; max-width: 100%; }
input, button, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { text-wrap: balance; line-height: 1.2; }
p, li { text-wrap: pretty; }

::selection { background: oklch(from var(--color-primary) l c h / 0.2); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Skip link ──────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-4); }

/* ── Auth layout ────────────────────────────────────────────── */
.auth-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  background: var(--color-bg);
}

.auth-layout {
  width: 100%;
  max-width: 420px;
  padding: var(--space-6) var(--space-4);
}

.auth-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.brand-mark {
  width: 52px;
  height: 52px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.brand-mark.small {
  width: 36px;
  height: 36px;
}

.brand-lockup h1 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.brand-lockup p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.auth-card {
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.auth-note {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── App shell ──────────────────────────────────────────────── */
.app-body { overflow-x: hidden; }

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

/* ── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100dvh;
  z-index: 200;
  overflow-y: auto;
  transition: transform var(--transition);
}

.sidebar-top {
  padding: var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}

.brand-link strong {
  font-size: var(--text-sm);
  font-weight: 700;
  display: block;
}

.brand-link span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-link {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
}

.nav-link:hover {
  background: var(--color-surface-dynamic);
  color: var(--color-text);
}

.nav-link.active {
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}

.sidebar-footer {
  padding: var(--space-4) var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mini-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
}

.mini-stat span { color: var(--color-text-muted); }
.mini-stat strong { font-weight: 700; color: var(--color-text); font-variant-numeric: tabular-nums; }

/* ── Main shell ─────────────────────────────────────────────── */
.main-shell {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

/* ── Topbar ─────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.topbar-left h2 {
  font-size: var(--text-lg);
  font-weight: 700;
}

.topbar-left p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ── Main content ───────────────────────────────────────────── */
.main-content {
  flex: 1;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* ── Card ───────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

/* ── Section head ───────────────────────────────────────────── */
.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.section-head h3 {
  font-size: var(--text-base);
  font-weight: 700;
}

.section-head p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ── Metric grid ────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(200px, 100%), 1fr));
  gap: var(--space-4);
}

.metric-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  box-shadow: var(--shadow-sm);
}

.metric-card span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

.metric-card strong {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.metric-card small {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.metric-card.danger strong { color: var(--color-danger); }

/* ── Content grid ───────────────────────────────────────────── */
.content-grid { display: grid; gap: var(--space-5); }
.content-grid.two-column { grid-template-columns: 1fr 1fr; }
.content-grid.form-layout { grid-template-columns: 380px 1fr; align-items: start; }

/* ── Alerts ─────────────────────────────────────────────────── */
.alert {
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  border: 1px solid transparent;
}

.alert-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: oklch(from var(--color-success) l c h / 0.25);
}

.alert-error {
  background: var(--color-error-bg);
  color: var(--color-error);
  border-color: oklch(from var(--color-error) l c h / 0.25);
}

.alert-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: oklch(from var(--color-warning) l c h / 0.25);
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), border-color var(--transition);
  border: 1px solid transparent;
  min-height: 36px;
}

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

.btn-secondary {
  background: var(--color-surface-dynamic);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover { background: var(--color-surface-offset-2); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}
.btn-ghost:hover { background: var(--color-surface-dynamic); color: var(--color-text); }

.btn-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: oklch(from var(--color-danger) l c h / 0.25);
}
.btn-danger:hover { background: var(--color-danger); color: #fff; }

.btn-block { width: 100%; }

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  min-height: 28px;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
}
.icon-btn:hover { background: var(--color-surface-dynamic); color: var(--color-text); }

/* ── Forms ──────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="password"],
input[type="date"],
input[type="file"],
select,
textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  min-height: 38px;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}

input::placeholder, textarea::placeholder { color: var(--color-text-faint); }
textarea { resize: vertical; min-height: 80px; }

.grid-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4) var(--space-5);
}

.grid-form .full { grid-column: 1 / -1; }
.form-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ── Table ──────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }

.data-table {
  font-size: var(--text-sm);
  min-width: 600px;
}

.data-table thead tr {
  background: var(--color-surface-offset);
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  text-align: left;
  white-space: nowrap;
}

.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text);
  vertical-align: middle;
  font-variant-numeric: tabular-nums;
}

.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover { background: var(--color-surface-offset); }

.data-table td strong { display: block; font-weight: 600; }
.cell-meta { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: 2px; display: block; }

.data-table td.actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex-wrap: wrap;
}

.text-right { text-align: right; }

/* ── Status badge ───────────────────────────────────────────── */
.status {
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: capitalize;
}

.status.active {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.status.inactive {
  background: var(--color-surface-dynamic);
  color: var(--color-text-muted);
}

.stale-tag {
  display: inline-block;
  margin-left: var(--space-1);
  padding: 1px var(--space-2);
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
}

.role-badge {
  padding: 2px var(--space-3);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* ── Filters ────────────────────────────────────────────────── */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-4);
}

.filters input, .filters select {
  max-width: 220px;
  flex: 1;
  min-width: 140px;
}

/* ── Import box ─────────────────────────────────────────────── */
.import-box {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-offset);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.import-box input[type="file"] {
  min-height: auto;
  border: none;
  background: none;
  padding: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  flex: 1;
}

/* ── Code box ───────────────────────────────────────────────── */
.code-box {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-family: 'Courier New', Courier, monospace;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  word-break: break-all;
  line-height: 1.6;
  white-space: pre-wrap;
}

/* ── List stack ─────────────────────────────────────────────── */
.list-stack { display: flex; flex-direction: column; gap: 0; }

.list-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider);
  gap: var(--space-4);
}

.list-row:last-child { border-bottom: none; }

.list-row strong { font-size: var(--text-sm); font-weight: 600; display: block; }
.list-row p { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: 2px; }
.list-row .up { color: var(--color-success); font-size: var(--text-xs); margin-top: 2px; }
.list-row .down { color: var(--color-danger); font-size: var(--text-xs); margin-top: 2px; }

.up { color: var(--color-success); }
.down { color: var(--color-danger); }

/* ── Chart card ─────────────────────────────────────────────── */
.chart-card canvas { max-height: 220px; }

/* ── Empty box ──────────────────────────────────────────────── */
.empty-box {
  padding: var(--space-10) var(--space-6);
  text-align: center;
  color: var(--color-text-faint);
  font-size: var(--text-sm);
}

/* ── Calculator ─────────────────────────────────────────────── */
.calculator-form { grid-template-columns: 1fr 1fr; }

.calc-results {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.result-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-offset);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.result-box span {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.result-box strong {
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

/* ── Mobile ─────────────────────────────────────────────────── */
.mobile-only { display: none; }

@media (max-width: 900px) {
  .content-grid.two-column { grid-template-columns: 1fr; }
  .content-grid.form-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    transform: translateX(-100%);
    width: 260px;
  }

  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }

  .main-shell { margin-left: 0; }
  .mobile-only { display: flex; }

  .main-content { padding: var(--space-4); }
  .topbar { padding: 0 var(--space-4); }
  .grid-form { grid-template-columns: 1fr; }
  .grid-form .full { grid-column: 1; }
  .filters { flex-direction: column; align-items: stretch; }
  .filters input, .filters select { max-width: none; }
}

@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr 1fr; }
  .data-table td.actions { flex-direction: column; align-items: flex-start; }
}
