/* ============================================================
   RFP Proposal Builder — Single-Page Layout
   ============================================================ */

/* === Design Tokens === */
:root {
  --text-xs: 0.75rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.125rem;
  --text-xl: 1.5rem;

  --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;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 10px;
  --radius-full: 9999px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --transition: 160ms var(--ease);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;

  --content-max: 1200px;
}

/* === Light Theme === */
:root,
[data-theme="light"] {
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-surface-2: #f3f4f5;
  --color-border: #a8a9ab;
  --color-divider: #a8a9ab;
  --color-text: #1b2733;
  --color-text-muted: #384147;
  --color-text-faint: #98a3ad;
  --color-primary: #0d7377;
  --color-primary-hover: #095558;
  --color-primary-light: rgba(13, 115, 119, 0.07);
  --color-primary-muted: rgba(13, 115, 119, 0.04);
  --color-success: #1a7f37;
  --color-success-light: rgba(26, 127, 55, 0.08);
  --color-warning: #9a6700;
  --color-warning-light: rgba(154, 103, 0, 0.08);
  --color-error: #cf222e;
  --header-bg: rgba(255, 255, 255, 0.82);
}

/* === Dark Theme === */
[data-theme="dark"] {
  --color-bg: #0d1117;
  --color-surface: #161b22;
  --color-surface-2: #1c2128;
  --color-border: #30363d;
  --color-divider: #21262d;
  --color-text: #c9d1d9;
  --color-text-muted: #8b949e;
  --color-text-faint: #484f58;
  --color-primary: #58a6aa;
  --color-primary-hover: #3d8c90;
  --color-primary-light: rgba(88, 166, 170, 0.1);
  --color-primary-muted: rgba(88, 166, 170, 0.05);
  --color-success: #3fb950;
  --color-success-light: rgba(63, 185, 80, 0.1);
  --color-warning: #d29922;
  --color-warning-light: rgba(210, 153, 34, 0.1);
  --color-error: #f85149;
  --header-bg: rgba(22, 27, 34, 0.82);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0d1117;
    --color-surface: #161b22;
    --color-surface-2: #1c2128;
    --color-border: #30363d;
    --color-divider: #21262d;
    --color-text: #c9d1d9;
    --color-text-muted: #8b949e;
    --color-text-faint: #484f58;
    --color-primary: #58a6aa;
    --color-primary-hover: #3d8c90;
    --color-primary-light: rgba(88, 166, 170, 0.1);
    --color-primary-muted: rgba(88, 166, 170, 0.05);
    --color-success: #3fb950;
    --color-success-light: rgba(63, 185, 80, 0.1);
    --color-warning: #d29922;
    --color-warning-light: rgba(210, 153, 34, 0.1);
    --color-error: #f85149;
    --header-bg: rgba(22, 27, 34, 0.82);
  }
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; scroll-behavior: smooth; }
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  display: flex;
  flex-direction: column;
}
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* === Header — frosted glass === */
.header {
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.logo-img {
  height: 28px;
  width: auto;
}
.logo-text {
  font-size: var(--text-xl);
  font-weight: 900;
  line-height: 1.2;
  padding-left: 15px;
}
.theme-toggle {
  padding: var(--space-2);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: background var(--transition), color var(--transition);
}
.theme-toggle:hover {
  background: var(--color-primary-muted);
  color: var(--color-text);
}

/* === Main === */
.main {
  flex: 1;
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  padding: var(--space-5) var(--space-5) var(--space-8);
}

/* === Progress / Download Bar === */
.gen-bar {
  margin-bottom: var(--space-5);
  animation: genSlideIn 300ms ease;
}
.gen-bar.hidden { display: none; }

.gen-bar .gen-output {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
}

@keyframes genSlideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.gen-track {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--space-2);
}
.gen-track-bar {
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width 300ms ease, background 300ms ease;
}
.gen-track-bar.done {
  background: var(--color-success);
}

.gen-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.gen-status-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}
.gen-status-label::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  margin-right: var(--space-2);
  animation: pulse 1.2s ease-in-out infinite;
  vertical-align: middle;
}
.gen-output.is-done .gen-status-label::before {
  background: var(--color-success);
  animation: none;
}
.gen-status-step {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

/* === Generation Result Card === */
.gen-result {
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  animation: genSlideIn 300ms ease;
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.gen-result.hidden { display: none; }

.gen-result.is-success {
  background: var(--color-success-light);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}
.gen-result.is-error {
  background: #fef2f2;
  border: 1px solid #ef4444;
  color: #b91c1c;
}
[data-theme="dark"] .gen-result.is-error {
  background: rgba(239,68,68,0.1);
  color: #fca5a5;
}

.gen-result-info {
  flex: 1;
  min-width: 0;
}
.gen-result-info strong {
  display: block;
  margin-bottom: 2px;
}
.gen-result-info p {
  margin: 0;
  opacity: 0.85;
  font-size: var(--text-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-download {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-success);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn-download:hover {
  background: #0a8c4a;
  transform: translateY(-1px);
  text-decoration: none;
}
.btn-download svg {
  flex-shrink: 0;
}

/* === Page Title Row === */
.page-title-row {
  margin-bottom: var(--space-1);
}
.page-title-row h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--color-primary-light);
  display: inline-block;
}
.page-subtitle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.page-subtitle-row p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 60ch;
}

/* === Card Base === */
.info-card,
.line-items-card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.info-card h3,
.line-items-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-2);
  border-bottom: 1px solid #bcbdbe;
}
.card-headline h3 {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

/* === Upload Zone === */
.upload-status {
  margin-top: var(--space-3);
}

/* === Status Pills === */
.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.status-pill.success {
  background: var(--color-success-light);
  color: var(--color-success);
}
.status-pill.warning {
  background: var(--color-warning-light);
  color: var(--color-warning);
}
.status-pill.muted {
  background: var(--color-surface-2);
  color: var(--color-text-faint);
}

/* === Info Grid (Quote + Client — 2-column) === */
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

/* === Form Fields — bottom-border style === */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}
.compact-grid {
  grid-template-columns: 1fr;
}
.field {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.field label {
  flex: 0 0 130px;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.field input,
.field select {
  flex: 1;
  min-width: 0;
  padding: var(--space-2) 0;
  border: none;
  border-bottom: 1.5px solid var(--color-border);
  border-radius: 0;
  background: transparent;
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.field input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 1px 0 0 var(--color-primary);
}
.field input::placeholder {
  color: var(--color-text-faint);
}
.field .lookup-row {
  flex: 1;
  min-width: 0;
  display: flex;
  gap: var(--space-2);
  align-items: center;
}
.field input[type="date"] {
  padding: var(--space-2) var(--space-1);
}

/* === Card Headlines === */
.card-headline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  border-bottom: 1px solid #bcbdbe;
}
.card-headline p {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

/* === Data Tables — zebra + hover + compact === */
.table-scroll {
  overflow-x: auto;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}
.data-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}
.data-table th {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.data-table td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  font-size: var(--text-sm);
  vertical-align: top;
}
.data-table tbody tr:nth-child(even) {
  background: transparent;
}
.data-table tbody tr:hover {
  background: var(--color-primary-muted);
}
.col-numeric {
  font-variant-numeric: tabular-nums;
  text-align: right !important;
}
.empty-state-cell {
  color: var(--color-text-faint);
  text-align: center;
  padding: var(--space-6) var(--space-4) !important;
  font-size: var(--text-sm);
}

/* === Line Items Card === */
.line-items-card {
  margin-bottom: var(--space-4);
}

/* === Accordion Table Rows === */
.acc-partner {
  cursor: pointer;
  user-select: none;
}
.acc-partner td {
  font-weight: 600;
  color: var(--color-primary);
  padding: var(--space-3) var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}
.acc-partner-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.acc-partner:hover td {
  background: var(--color-primary-muted);
}
.acc-chevron {
  flex-shrink: 0;
  transition: transform 200ms var(--ease);
  color: var(--color-text-faint);
}
.acc-partner.is-open .acc-chevron {
  transform: rotate(0deg);
}
.acc-partner:not(.is-open) .acc-chevron {
  transform: rotate(-90deg);
}

/* Accordion children: hidden by default */
.acc-child {
  display: none;
}
.acc-child.is-visible {
  display: table-row;
}

/* Channel sub-header row — indented past partner text */
.acc-channel td {
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--color-text);
  padding-left: 2.75rem;
  background: transparent;
  border-bottom: 1px solid var(--color-divider);
}

/* Data rows — indented past channel headers */
.acc-item .acc-indent {
  padding-left: 3.5rem;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.55rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all var(--transition);
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.btn:active {
  transform: translateY(0);
}
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-light);
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
}
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-text);
}
.btn-generate {
  background: var(--color-primary);
  color: #fff;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
}
.btn-generate:hover {
  background: var(--color-primary-hover);
}
.btn-generate:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-small {
  padding: 0.35rem 0.6rem;
  font-size: var(--text-xs);
}

/* === Toggle Cards (5-across horizontal row) === */
.toggles-section {
  margin-bottom: var(--space-4);
}
.toggle-grid {
  display: flex;
  gap: var(--space-2);
}
.toggle-card {
  flex: 1;
  min-width: 0;
  display: grid;
  grid-template-columns: auto auto 1fr;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 0 var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-divider);
  border-left: 2px solid transparent;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.toggle-card:hover {
  border-color: var(--color-border);
  background: var(--color-surface-2);
}
.toggle-card input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}
.check-indicator {
  grid-row: 1;
  grid-column: 1;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  position: relative;
}
.check-indicator::after {
  content: "";
  display: block;
  width: 8px;
  height: 5px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) scale(0);
  transition: transform 140ms var(--ease);
  margin-top: -1px;
}
.toggle-card input:checked ~ .check-indicator {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.toggle-card input:checked ~ .check-indicator::after {
  transform: rotate(-45deg) scale(1);
}
.toggle-card:not(.disabled) {
  border-left-color: var(--color-primary);
}
.toggle-card:has(input:checked) {
  border-left-color: var(--color-primary);
  background: var(--color-primary-light);
}
.toggle-content {
  grid-row: 1 / span 2;
  grid-column: 2 / -1;
}
.toggle-name {
  font-weight: 600;
  font-size: var(--text-sm);
  display: block;
  line-height: 1.3;
}
.toggle-card small {
  color: var(--color-text-muted);
  font-size: 0.6875rem;
  line-height: 1.4;
  display: block;
  margin-top: 1px;
}

.toggle-card.disabled {
  opacity: 0.45;
  pointer-events: none;
  border-left-color: var(--color-border);
  background: var(--color-surface-2);
}

/* === Campaign Goals (3-column) === */
.goals-section {
  margin-bottom: var(--space-4);
}
.goals-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.field-vertical {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field-vertical label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

/* === Goal Select Dropdowns === */
.goal-select {
  width: 100%;
  min-width: 0;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
  font-size: var(--text-sm);
  cursor: pointer;
  transition: border-color var(--transition);
}
.goal-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* === Footer === */
.footer {
  padding: var(--space-4);
  text-align: center;
  font-size: 0.6875rem;
  color: var(--color-text-faint);
  border-top: 1px solid var(--color-divider);
}

/* === Focus-visible global === */
*:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-light);
  border-radius: var(--radius-sm);
}


/* === Responsive === */
@media (max-width: 900px) {
  .info-grid {
    grid-template-columns: 1fr;
  }
  .goals-grid {
    grid-template-columns: 1fr;
  }
  .toggle-grid {
    flex-wrap: wrap;
  }
  .toggle-card {
    flex: 1 1 calc(50% - var(--space-2));
  }
}
@media (max-width: 640px) {
  .toggle-grid {
    flex-direction: column;
  }
  .toggle-card {
    flex: 1 1 100%;
  }
  .page-subtitle-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  .card-headline {
    flex-direction: column;
  }
}