/*
 * Tennly Marketing Site v2 Stylesheet
 * Modern app-presentation styling aligned with design/APP-LAYOUT.md:
 * - Clean neutral canvas (#F4F5F7), white content panels (#FFFFFF), 1px borders (#E2E4E8)
 * - 8px border-radius on panels, 6px on controls/buttons, 4px on status tags
 * - IBM Plex Serif for hero/page titles and major figures; IBM Plex Sans 600 for UI headings
 * - Tabular figures & explicitly signed money values everywhere
 * - Zero drop shadows (except menus/modals), zero gradients/glows, zero pills, zero hype
 * - Light theme default with accessible dark mode toggle
 */

@import "tokens.css";

:root {
  /* v2 layout tokens */
  --tn-v2-canvas: #F4F5F7;
  --tn-v2-surface: #FFFFFF;
  --tn-v2-surface-subtle: #F8F9FA;
  --tn-v2-border: #E2E4E8;
  --tn-v2-border-strong: #CBD0D6;
  --tn-v2-radius-panel: 8px;
  --tn-v2-radius-ctrl: 6px;
  --tn-v2-radius-tag: 4px;
}

[data-theme="dark"] {
  --tn-v2-canvas: #13171B;
  --tn-v2-surface: #1C2228;
  --tn-v2-surface-subtle: #242B33;
  --tn-v2-border: #323A44;
  --tn-v2-border-strong: #46515E;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  background-color: var(--tn-v2-canvas);
  color: var(--tn-text);
  font-family: var(--tn-font);
  line-height: var(--tn-leading);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Accessibility skip link and sr-only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--tn-text);
  color: var(--tn-bg);
  padding: 8px 16px;
  border-radius: var(--tn-v2-radius-ctrl);
  font-size: 14px;
  text-decoration: none;
  z-index: 9999;
}
.skip-link:focus {
  top: 16px;
  outline: 2px solid var(--tn-brand);
  outline-offset: 2px;
}

/* Container */
.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--tn-space-5);
}

.wrap-prose {
  max-width: 820px;
}

/* Site Header */
.site-header {
  border-bottom: 1px solid var(--tn-v2-border);
  background: var(--tn-v2-surface);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: var(--tn-space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--tn-space-2);
  text-decoration: none;
  color: var(--tn-text);
  font-family: var(--tn-font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand .mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--tn-brand);
  color: var(--tn-on-brand);
  border-radius: var(--tn-v2-radius-ctrl);
  font-size: 1rem;
  font-family: var(--tn-font-display);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--tn-space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--tn-text-muted);
  text-decoration: none;
  font-size: var(--tn-size-small);
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color var(--tn-duration) ease, border-color var(--tn-duration) ease;
}

.nav-links a:hover {
  color: var(--tn-text);
}

.nav-links a[aria-current="page"] {
  color: var(--tn-text);
  border-bottom-color: var(--tn-brand);
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--tn-space-3);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--tn-v2-border);
  border-radius: var(--tn-v2-radius-ctrl);
  color: var(--tn-text-muted);
  font-family: var(--tn-font);
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 7px 12px;
  cursor: pointer;
  min-height: 36px;
  transition: background-color var(--tn-duration) ease, color var(--tn-duration) ease;
}

.theme-toggle:hover {
  background: var(--tn-v2-surface-subtle);
  color: var(--tn-text);
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  color: var(--tn-text);
  margin-top: 0;
  letter-spacing: 0;
  text-transform: none;
}

h1 {
  font-family: var(--tn-font-display);
  font-size: 2.75rem;
  line-height: 1.18;
  margin-bottom: var(--tn-space-4);
}

h2 {
  font-family: var(--tn-font-display);
  font-size: 1.875rem;
  line-height: 1.25;
  margin-bottom: var(--tn-space-3);
}

h3 {
  font-family: var(--tn-font);
  font-size: 1.2rem;
  line-height: 1.35;
  margin-bottom: var(--tn-space-2);
}

p {
  margin-top: 0;
  margin-bottom: var(--tn-space-4);
  max-width: var(--tn-measure);
}

p.lede {
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--tn-text-muted);
  max-width: 68ch;
}

p.note {
  font-size: var(--tn-size-small);
  color: var(--tn-text-muted);
  max-width: var(--tn-measure);
}

.mono {
  font-family: var(--tn-font-mono);
  font-variant-numeric: tabular-nums;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--tn-brand);
  color: var(--tn-on-brand);
  border: 1px solid var(--tn-brand);
  border-radius: var(--tn-v2-radius-ctrl);
  padding: 10px 22px;
  font-family: var(--tn-font);
  font-size: var(--tn-size-body);
  font-weight: 500;
  text-decoration: none;
  min-height: 44px;
  cursor: pointer;
  transition: background-color var(--tn-duration) ease, border-color var(--tn-duration) ease;
}

.btn:hover {
  background: var(--tn-brand-strong);
  border-color: var(--tn-brand-strong);
  color: var(--tn-on-brand);
}

.btn:focus-visible {
  outline: 2px solid var(--tn-text);
  outline-offset: 2px;
}

.btn.secondary {
  background: var(--tn-v2-surface);
  color: var(--tn-text);
  border: 1px solid var(--tn-v2-border-strong);
}

.btn.secondary:hover {
  background: var(--tn-v2-surface-subtle);
  border-color: var(--tn-text);
}

.btn.sm {
  min-height: 36px;
  padding: 6px 14px;
  font-size: var(--tn-size-small);
}

.link {
  color: var(--tn-brand);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  font-weight: 500;
}

.link:hover {
  color: var(--tn-brand-strong);
}

/* Sections */
.section {
  padding: var(--tn-space-8) 0;
  border-bottom: 1px solid var(--tn-v2-border);
}

.section-alt {
  background: var(--tn-v2-surface);
}

.section-head {
  margin-bottom: var(--tn-space-7);
}

/* Status Tags (v2 4px radius) */
.status {
  display: inline-block;
  padding: 3px 8px;
  border-radius: var(--tn-v2-radius-tag);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.3;
  border: 1px solid transparent;
  white-space: nowrap;
}

.status.paid,
.status.current {
  color: var(--tn-paid);
  background: var(--tn-paid-fill);
  border-color: var(--tn-paid);
}

.status.due {
  color: var(--tn-due);
  background: var(--tn-due-fill);
  border-color: var(--tn-due);
}

.status.overdue {
  color: var(--tn-overdue);
  background: var(--tn-overdue-fill);
  border-color: var(--tn-overdue);
}

/* Money Formatting */
.money {
  font-family: var(--tn-font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

.money.neg {
  color: var(--tn-money-neg);
}

.money.pos {
  color: var(--tn-money-pos);
}

.money.zero {
  color: var(--tn-money-zero);
}

/* Hero Section */
.hero {
  padding: var(--tn-space-8) 0 var(--tn-space-7);
  background: var(--tn-v2-canvas);
  border-bottom: 1px solid var(--tn-v2-border);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--tn-space-4);
  margin-top: var(--tn-space-5);
  margin-bottom: var(--tn-space-4);
}

/* ==========================================================================
   Panel Cards & Excerpts
   ========================================================================== */
.panel-card {
  background: var(--tn-v2-surface);
  border: 1px solid var(--tn-v2-border);
  border-radius: var(--tn-v2-radius-panel);
  padding: var(--tn-space-5);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: var(--tn-space-3);
  margin-bottom: var(--tn-space-4);
  border-bottom: 1px solid var(--tn-v2-border);
}

.panel-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

/* ==========================================================================
   Workflow Steps & Excerpts
   ========================================================================== */
.workflow-stack {
  display: flex;
  flex-direction: column;
  gap: var(--tn-space-6);
  margin-top: var(--tn-space-6);
}

.workflow-card {
  background: var(--tn-v2-surface);
  border: 1px solid var(--tn-v2-border);
  border-radius: var(--tn-v2-radius-panel);
  padding: var(--tn-space-6);
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: var(--tn-space-6);
  align-items: center;
}

.workflow-meta-num {
  font-family: var(--tn-font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--tn-brand);
  margin-bottom: var(--tn-space-2);
}

/* Mini Excerpts inside Workflow & Features */
.mini-excerpt {
  background: var(--tn-v2-surface-subtle);
  border: 1px solid var(--tn-v2-border);
  border-radius: var(--tn-v2-radius-panel);
  padding: var(--tn-space-4);
  font-size: 0.8125rem;
}

.mini-excerpt-header {
  font-weight: 600;
  padding-bottom: var(--tn-space-2);
  margin-bottom: var(--tn-space-3);
  border-bottom: 1px solid var(--tn-v2-border);
  display: flex;
  justify-content: space-between;
}

/* Alternating Feature Showcase */
.showcase-grid {
  display: flex;
  flex-direction: column;
  gap: var(--tn-space-7);
}

.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--tn-space-7);
  align-items: center;
}

.showcase-row.reverse {
  direction: rtl;
}
.showcase-row.reverse > * {
  direction: ltr;
}

/* Tables inside excerpts */
.table-scroll {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table.ledger {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--tn-size-small);
  text-align: left;
}

table.ledger th {
  padding: 10px 12px;
  font-weight: 600;
  color: var(--tn-text);
  border-bottom: 2px solid var(--tn-v2-border-strong);
  white-space: nowrap;
}

table.ledger td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--tn-v2-border);
  color: var(--tn-text);
  white-space: nowrap;
}

table.ledger th.num,
table.ledger td.num {
  text-align: right;
  font-family: var(--tn-font-mono);
  font-variant-numeric: tabular-nums;
}

table.ledger th.date,
table.ledger td.date {
  font-family: var(--tn-font-mono);
}

table.ledger tr.totals td {
  border-top: 3px double var(--tn-v2-border-strong);
  border-bottom: 1px solid var(--tn-v2-border-strong);
  font-weight: 600;
}

/* Receipt Sheet Excerpt */
.receipt-sheet {
  background: var(--tn-v2-surface);
  border: 1px solid var(--tn-v2-border);
  border-radius: var(--tn-v2-radius-panel);
  padding: var(--tn-space-5);
  max-width: 420px;
}

.receipt-head {
  border-bottom: 1px solid var(--tn-v2-border);
  padding-bottom: var(--tn-space-2);
  margin-bottom: var(--tn-space-3);
}

.receipt-landlord {
  font-weight: 600;
  margin: 0 0 2px;
}

.receipt-title {
  font-family: var(--tn-font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 2px;
}

.receipt-meta {
  font-size: var(--tn-size-small);
  margin-bottom: var(--tn-space-3);
}

.receipt-meta p {
  display: flex;
  justify-content: space-between;
  margin: 0 0 4px;
}

table.receipt-lines {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--tn-size-small);
  margin-bottom: var(--tn-space-3);
}

table.receipt-lines td {
  padding: 5px 0;
  border-bottom: 1px solid var(--tn-v2-border);
}

table.receipt-lines tr.receipt-total td {
  border-top: 3px double var(--tn-v2-border-strong);
  border-bottom: none;
  font-weight: 600;
  padding-top: 6px;
}

.receipt-sign {
  font-size: 0.75rem;
  color: var(--tn-text-muted);
  margin-top: var(--tn-space-3);
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--tn-space-6);
  margin: var(--tn-space-6) 0;
}

.pricing-panel {
  background: var(--tn-v2-surface);
  border: 1px solid var(--tn-v2-border);
  border-radius: var(--tn-v2-radius-panel);
  padding: var(--tn-space-6);
  display: flex;
  flex-direction: column;
}

.pricing-panel.featured {
  border-top: 4px solid var(--tn-brand);
}

.plan-title {
  font-size: 1.5rem;
  margin-bottom: var(--tn-space-1);
}

.plan-desc {
  color: var(--tn-text-muted);
  font-size: var(--tn-size-small);
  margin-bottom: var(--tn-space-4);
}

.plan-price {
  font-family: var(--tn-font-display);
  font-size: 2.25rem;
  font-weight: 600;
  margin-bottom: var(--tn-space-1);
}

.plan-features {
  list-style: none;
  margin: var(--tn-space-5) 0 auto;
  padding: 0;
  border-top: 1px solid var(--tn-v2-border);
}

.plan-features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--tn-v2-border);
  font-size: var(--tn-size-small);
  display: flex;
  justify-content: space-between;
}

.plan-cta {
  margin-top: var(--tn-space-6);
}

/* Ruled FAQ */
.faq-list {
  border-top: 2px solid var(--tn-v2-border-strong);
}

.faq-item {
  padding: var(--tn-space-5) 0;
  border-bottom: 1px solid var(--tn-v2-border);
}

.faq-item h3 {
  font-size: 1.125rem;
  margin-bottom: var(--tn-space-2);
}

.faq-item p {
  color: var(--tn-text-muted);
  margin-bottom: 0;
}

/* Prose layout for Legal Pages */
.prose-content {
  padding: var(--tn-space-7) 0;
}

.prose-content h2 {
  margin-top: var(--tn-space-6);
  padding-top: var(--tn-space-4);
  border-top: 1px solid var(--tn-v2-border);
}

.prose-content ul,
.prose-content ol {
  padding-left: var(--tn-space-5);
  margin-bottom: var(--tn-space-5);
  max-width: var(--tn-measure);
}

.prose-content li {
  margin-bottom: var(--tn-space-2);
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--tn-v2-border);
  background: var(--tn-v2-surface);
  padding: var(--tn-space-6) 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--tn-space-4);
}

.footer-nav {
  display: flex;
  gap: var(--tn-space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav a {
  color: var(--tn-text-muted);
  text-decoration: none;
  font-size: var(--tn-size-small);
}

.footer-nav a:hover {
  color: var(--tn-text);
}

.footer-mandatory {
  font-size: var(--tn-size-small);
  color: var(--tn-text-muted);
  margin: 0;
  width: 100%;
  padding-top: var(--tn-space-4);
  border-top: 1px solid var(--tn-v2-border);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 960px) {
  .workflow-card {
    grid-template-columns: 1fr;
  }
  .showcase-row,
  .showcase-row.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .nav-container {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--tn-space-4) 0;
  }
  .nav-links {
    flex-wrap: wrap;
    gap: var(--tn-space-3);
  }
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }
  h1 {
    font-size: 2rem;
  }
}

/*
 * Product Visual Slots
 * Real app screenshots displayed as 1px bordered panels with 8px radius, no shadow.
 */
.product-visual-slot {
  position: relative;
  width: 100%;
}

.product-shot {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--tn-v2-radius-panel, 8px);
  border: 1px solid var(--tn-v2-border, #E2E4E8);
  background: var(--tn-v2-surface, #FFFFFF);
  box-shadow: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}