/* Rejesha — Stage 1 base styles. Mobile-first. */

:root {
  --bg:        #f6f7f5;
  --surface:   #ffffff;
  --ink:       #1d2b22;
  --muted:     #667a6d;
  --line:      #dfe5e0;
  --brand:     #1f7a4d;
  --brand-dk:  #165c3a;
  --error-bg:  #fdecec;
  --error-ink: #8a1f1f;
  --ok-bg:     #e9f6ee;
  --ok-ink:    #1f6b42;
  --warn-bg:   #fff6e5;
  --warn-ink:  #8a5a00;
  --radius:    10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

/* ---------------------------------------------------------- topbar */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--brand-dk);
  text-decoration: none;
}

.mainnav { display: flex; gap: 14px; flex-wrap: wrap; }
.mainnav a { font-weight: 500; }

.who {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pill {
  background: var(--ok-bg);
  color: var(--ok-ink);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: .78rem;
  text-transform: capitalize;
}

.inline { display: inline; margin: 0; }

/* -------------------------------------------------------- container */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px 48px;
}

/* ------------------------------------------------------------ cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  color: inherit;
  text-decoration: none;
  transition: border-color .15s, transform .15s;
}

.card:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
  text-decoration: none;
}

.card h2 { margin: 0 0 6px; font-size: 1.05rem; color: var(--brand-dk); }
.card p  { margin: 0; color: var(--muted); font-size: .92rem; }

/* ------------------------------------------------------------ forms */
label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 600;
  font-size: .9rem;
}

input[type=text], input[type=email], input[type=password],
input[type=number], input[type=tel], input[type=date],
input[type=file], select, textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  font: inherit;
  color: inherit;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}

/* ---------------------------------------------------------- buttons */
.btn {
  display: inline-block;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--brand);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.btn:hover { background: var(--brand-dk); }

.btn-block { display: block; width: 100%; margin-top: 20px; }
.btn-sm    { padding: 6px 12px; font-size: .85rem; }

.btn-ghost {
  background: transparent;
  color: var(--brand-dk);
  border-color: var(--line);
}

.btn-ghost:hover { background: var(--bg); }

.btn-danger { background: var(--error-ink); }

/* --------------------------------------------------------- messages */
.flash {
  padding: 12px 14px;
  border-radius: var(--radius);
  margin: 0 0 16px;
  font-size: .93rem;
}

.flash-error   { background: var(--error-bg); color: var(--error-ink); }
.flash-success { background: var(--ok-bg);    color: var(--ok-ink); }
.flash-info    { background: var(--warn-bg);  color: var(--warn-ink); }

/* --------------------------------------------------------- auth page */
.auth-card {
  max-width: 400px;
  margin: 8vh auto 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px 32px;
}

.auth-card h1 { margin: 0 0 4px; font-size: 1.4rem; color: var(--brand-dk); }

/* ------------------------------------------------------------ misc */
.muted { color: var(--muted); }
.small { font-size: .85rem; }

.welcome h1 { margin: 0 0 4px; font-size: 1.5rem; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 20px 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .85rem;
}

/* --------------------------------------------------------- tablet+ */
@media (min-width: 720px) {
  .container { padding: 28px 24px 60px; }
}


/* ======================================================= Stage 2 */

/* KPI stats --------------------------------------------------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 16px 0 24px;
}

@media (min-width: 720px) {
  .stat-grid { grid-template-columns: repeat(4, 1fr); }
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.stat-value {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--brand-dk);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: .82rem;
  color: var(--muted);
  margin-top: 4px;
}

/* Sections --------------------------------------------------------- */
.section { margin: 28px 0; }
.section h2 {
  font-size: 1.1rem;
  margin: 0 0 8px;
  color: var(--brand-dk);
}

.section-help {
  color: var(--muted);
  font-size: .9rem;
  margin: 0 0 14px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

/* Collection log --------------------------------------------------- */
.log-list {
  list-style: none;
  padding: 0;
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.log-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.log-list li:last-child { border-bottom: 0; }

.log-time {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: .85rem;
  min-width: 48px;
}

.log-main { flex: 1; min-width: 0; }
.log-main strong { display: block; }
.log-main small { color: var(--muted); }

.log-kg {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.log-thumb {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--line);
  flex: 0 0 auto;
}

/* Photo preview ---------------------------------------------------- */
.photo-preview {
  margin-top: 10px;
  max-width: 220px;
  max-height: 220px;
  border-radius: 8px;
  border: 1px solid var(--line);
  display: block;
}

/* Device register rows -------------------------------------------- */
.device-row {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 12px;
}

.device-row .row-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.device-row .row-num {
  font-weight: 600;
  color: var(--brand-dk);
  font-size: .9rem;
}

.row-actions { margin: 8px 0 20px; }

/* Empty state ------------------------------------------------------ */
.empty {
  text-align: center;
  color: var(--muted);
  padding: 24px 12px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

/* Table ------------------------------------------------------------ */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.table th, .table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  font-size: .92rem;
  vertical-align: middle;
}

.table th {
  background: var(--bg);
  font-weight: 600;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--muted);
}

.table tr:last-child td { border-bottom: 0; }

/* Badges ----------------------------------------------------------- */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: .75rem;
  background: var(--bg);
  color: var(--muted);
}

.badge-ok {
  background: var(--ok-bg);
  color: var(--ok-ink);
}


/* ======================================================= Stage 3 */

.breadcrumb {
  margin: 0 0 10px;
  font-size: .9rem;
}

/* Device header ---------------------------------------------------- */
.device-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.device-code {
  font-size: 1.6rem;
  margin: 0 0 4px;
  color: var(--brand-dk);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

/* Detail grid ------------------------------------------------------ */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.detail-label {
  display: block;
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  margin-bottom: 3px;
}

.detail-value {
  display: block;
  font-size: .95rem;
}

.detail-photo {
  display: block;
  max-width: 220px;
  max-height: 220px;
  border-radius: 8px;
  border: 1px solid var(--line);
  margin-top: 4px;
}

/* Radio / checkbox groups ----------------------------------------- */
.radio-group,
.checkbox-group {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin: 0 0 18px;
}

.radio-group legend,
.checkbox-group legend {
  font-weight: 600;
  font-size: .9rem;
  padding: 0 6px;
  color: var(--brand-dk);
}

.radio, .checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 400;
  margin: 0;
}

.radio:hover, .checkbox:hover { background: var(--bg); }

.radio input, .checkbox input {
  margin-top: 3px;
  flex: 0 0 auto;
}

.radio span { display: block; }
.radio strong { display: block; }
.radio small { color: var(--muted); display: block; margin-top: 2px; }

.radio input:disabled + span { opacity: .5; }

/* Conditional sections -------------------------------------------- */
.conditional-section {
  border-top: 1px solid var(--line);
  padding-top: 8px;
  margin-top: 8px;
}

.conditional-section[hidden] { display: none; }

/* CO2e display ----------------------------------------------------- */
.co2e-display {
  display: block;
  background: var(--ok-bg);
  color: var(--ok-ink);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-top: 14px;
}

.co2e-display .detail-label {
  color: var(--ok-ink);
  opacity: .8;
}

.co2e-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin: 2px 0 4px;
}

/* Assessment summary ---------------------------------------------- */
.assessment-summary {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}

.summary-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.kv {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 8px 16px;
  margin: 0;
}

.kv dt {
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--muted);
  padding-top: 2px;
}

.kv dd { margin: 0; font-size: .95rem; }

/* Timeline -------------------------------------------------------- */
.timeline {
  list-style: none;
  padding: 0 0 0 20px;
  margin: 0;
  position: relative;
  border-left: 2px solid var(--line);
}

.timeline li {
  position: relative;
  padding: 0 0 20px 18px;
}

.timeline li:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -27px;
  top: 3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brand);
  border: 2px solid var(--surface);
}

.timeline strong { font-size: .95rem; }

.timeline-notes {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: .88rem;
}

/* ======================================================= Stage 4 */

/* Two-column form rows -------------------------------------------- */
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 16px;
}

@media (min-width: 640px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

/* Credit panel ---------------------------------------------------- */
.credit-panel {
  background: var(--ok-bg);
  color: var(--ok-ink);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 18px 0 4px;
}

.credit-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 6px 0;
  font-size: 1rem;
}

.credit-key {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  opacity: .8;
}

.credit-val {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.credit-total {
  border-top: 1px solid rgba(0, 0, 0, .12);
  margin-top: 6px;
  padding-top: 10px;
  font-size: 1.2rem;
}

.credit-total .credit-val { font-size: 1.5rem; font-weight: 700; }

.credit-help {
  font-size: .8rem;
  margin: 6px 0 0;
  opacity: .85;
}

/* Receipt --------------------------------------------------------- */
.receipt {
  max-width: 640px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.receipt-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line);
  margin-bottom: 18px;
}

.receipt-head h1 { margin: 0; font-size: 1.35rem; color: var(--brand-dk); }

.receipt-section { margin: 20px 0; }
.receipt-section h2 {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  margin: 0 0 8px;
}

.receipt-calc {
  width: 100%;
  border-collapse: collapse;
}

.receipt-calc th,
.receipt-calc td {
  text-align: left;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  font-size: .98rem;
}

.receipt-calc th {
  color: var(--muted);
  font-weight: 500;
  width: 45%;
}

.receipt-calc td {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.receipt-total th,
.receipt-total td {
  border-bottom: 0;
  padding-top: 12px;
  font-size: 1.1rem;
  color: var(--brand-dk);
}

.receipt-total td { font-size: 1.3rem; font-weight: 700; }

.receipt-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.device-code-inline {
  font-variant-numeric: tabular-nums;
  letter-spacing: .03em;
  color: var(--brand-dk);
}

/* Print ----------------------------------------------------------- */
@media print {
  .no-print, .topbar, .footer, .breadcrumb { display: none !important; }
  body { background: #fff; }
  .receipt {
    border: 0;
    padding: 0;
    max-width: 100%;
  }
  .receipt-head { border-bottom-color: #000; }
}


/* ======================================================= Stage 5 */

/* Filter bar ------------------------------------------------------- */
.filter-bar {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.filter-bar label {
  margin: 0;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--muted);
  align-self: center;
}

.filter-bar select,
.filter-bar input[type=date] {
  width: auto;
  min-width: 160px;
  padding: 8px 10px;
}

.filter-bar #customDates {
  display: inline-flex;
  align-items: flex-end;
  gap: 10px;
}

.filter-bar #customDates[hidden] { display: none; }

.range-caption {
  margin: 12px 0 0;
  font-size: .92rem;
  color: var(--muted);
}

/* KPI grid --------------------------------------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.kpi-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  text-decoration: none;
  color: inherit;
  transition: border-color .15s, transform .15s;
}

.kpi-card:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
  text-decoration: none;
}

.kpi-value {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--brand-dk);
  font-variant-numeric: tabular-nums;
}

.kpi-label {
  font-size: .92rem;
  font-weight: 600;
  margin-top: 4px;
}

.kpi-sub {
  font-size: .78rem;
  color: var(--muted);
  margin-top: 2px;
}

.kpi-hint {
  margin: 12px 0 0;
  font-size: .85rem;
  color: var(--muted);
}

/* Chart ------------------------------------------------------------ */
.chart-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  max-width: 720px;
}

/* Numeric cells ---------------------------------------------------- */
.table .num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}