/* ==========================================================================
   CordCloud (cordcloud.mom) — Editorial Magazine Minimalist Stylesheet
   Palette:
   - Paper Background: #FAF7F2
   - Ink Text:         #141414
   - Pure Surface:     #FFFFFF
   - Signal Orange:    #FF4D00 (Strictly for Logo dot, links/CTAs, dropcap)
   Constraints:
   - ZERO gradients, ZERO box-shadows/text-shadows, ZERO stock photos.
   - Visible 1px hairline 12-column grid system.
   ========================================================================== */

:root {
  --bg-paper: #FAF7F2;
  --surface-white: #FFFFFF;
  --text-ink: #141414;
  --text-muted: #52504C;
  --border-ink: #141414;
  --border-rule: #D6D1C7;
  --signal-orange: #FF4D00;
  --font-display: 'Fraunces', Georgia, 'Noto Serif SC', 'Songti SC', serif;
  --font-sans: 'Archivo', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --max-width: 1360px;
}

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

html {
  background-color: var(--bg-paper);
  color: var(--text-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-paper);
  color: var(--text-ink);
  overflow-x: hidden;
  border-top: 3px solid var(--border-ink);
}

/* Accessibility utility */
.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;
}

/* Typography Reset & Editorial Hierarchy */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-ink);
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--signal-orange);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

/* Restrained Animated Underline Link / CTA */
.editorial-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--signal-orange);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  padding-bottom: 4px;
  text-decoration: none;
}

.editorial-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: var(--signal-orange);
  transform: scaleX(0.28);
  transform-origin: left center;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.editorial-link:hover::after,
.editorial-link:focus-visible::after {
  transform: scaleX(1);
}

/* Buttons (Touch-friendly, zero shadow, zero gradient) */
.btn-editorial {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--border-ink);
  background-color: var(--surface-white);
  color: var(--signal-orange);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-editorial:hover,
.btn-editorial:focus-visible {
  background-color: var(--text-ink);
  color: var(--bg-paper);
  border-color: var(--text-ink);
}

.btn-editorial-primary {
  background-color: var(--text-ink);
  color: var(--bg-paper);
  border: 1px solid var(--text-ink);
}

.btn-editorial-primary .dot-accent {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--signal-orange);
}

.btn-editorial-primary:hover,
.btn-editorial-primary:focus-visible {
  background-color: var(--surface-white);
  color: var(--signal-orange);
  border-color: var(--border-ink);
}

/* Visible 1px 12-Column Editorial Grid Container */
.page-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  border-left: 1px solid var(--border-ink);
  border-right: 1px solid var(--border-ink);
  background-color: var(--bg-paper);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  border-bottom: 1px solid var(--border-ink);
}

.col-1  { grid-column: span 1; }
.col-2  { grid-column: span 2; }
.col-3  { grid-column: span 3; }
.col-4  { grid-column: span 4; }
.col-5  { grid-column: span 5; }
.col-6  { grid-column: span 6; }
.col-7  { grid-column: span 7; }
.col-8  { grid-column: span 8; }
.col-9  { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-12 { grid-column: span 12; }

.cell-pad {
  padding: 2.5rem 2rem;
}

.cell-pad-lg {
  padding: 4.5rem 2.5rem;
}

.border-r {
  border-right: 1px solid var(--border-ink);
}

.border-r-subtle {
  border-right: 1px solid var(--border-rule);
}

.border-b-subtle {
  border-bottom: 1px solid var(--border-rule);
}

.surface-white {
  background-color: var(--surface-white);
}

/* Top Issue Masthead Bar */
.issue-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 2rem;
  border-bottom: 1px solid var(--border-ink);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* Header & Navigation */
.site-header {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: stretch;
  border-bottom: 1px solid var(--border-ink);
  background-color: var(--bg-paper);
  position: sticky;
  top: 0;
  z-index: 50;
}

.brand-cell {
  grid-column: span 3;
  display: flex;
  align-items: center;
  padding: 1.15rem 2rem;
  border-right: 1px solid var(--border-ink);
}

/* Logo: Fraunces "CordCloud" with second 'o' replaced by solid #FF4D00 circle */
.brand-logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-ink);
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: baseline;
  text-decoration: none;
}

.brand-logo:hover {
  color: var(--text-ink);
}

.logo-orange-dot {
  display: inline-block;
  width: 0.48em;
  height: 0.48em;
  background-color: var(--signal-orange);
  border-radius: 50%;
  margin: 0 0.04em;
  vertical-align: 0.05em;
}

.nav-cell {
  grid-column: span 7;
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  border-right: 1px solid var(--border-ink);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-list a {
  color: var(--text-ink);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--signal-orange);
  border-bottom-color: var(--signal-orange);
}

.header-cta-cell {
  grid-column: span 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  background-color: var(--surface-white);
}

/* Visible 12-Column Guide Ruler (Magazine Architectural Detail) */
.grid-ruler {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  border-bottom: 1px solid var(--border-rule);
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--font-sans);
  letter-spacing: 0.08em;
}

.grid-ruler span {
  padding: 0.3rem 0.6rem;
  border-right: 1px solid var(--border-rule);
  text-align: right;
}

.grid-ruler span:last-child {
  border-right: none;
}

/* Hero Section */
.hero-kicker {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-ink);
  padding-bottom: 0.25rem;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6.8vw, 6rem); /* Up to 96px (6rem) */
  line-height: 1.02;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--text-ink);
  margin-bottom: 1.5rem;
}

.hero-headline .brand-subline {
  display: block;
  font-size: clamp(1.35rem, 2.3vw, 2.1rem);
  font-weight: 500;
  line-height: 1.35;
  margin-top: 1rem;
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  font-weight: 500;
  line-height: 1.45;
  color: var(--text-ink);
  margin-bottom: 1.25rem;
}

.hero-lead {
  font-size: 1.06rem;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 64ch;
  margin-bottom: 2.25rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-rule);
}

.hero-button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}

.hero-spec-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-spec-item {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-rule);
}

.hero-spec-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.spec-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.spec-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-ink);
}

/* Section Headers */
.section-index {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-style: italic;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 58ch;
}

/* Two-Column Editorial Section with Signal Orange Dropcap */
.editorial-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.dropcap-paragraph::first-letter {
  font-family: var(--font-display);
  font-size: 4.4rem;
  font-weight: 700;
  line-height: 0.82;
  float: left;
  margin-right: 0.75rem;
  margin-top: 0.12rem;
  color: var(--signal-orange);
}

/* Feature Cards & Streaming Cards */
.card-illustration {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border-ink);
  background-color: var(--bg-paper);
  margin-bottom: 1.5rem;
}

.card-number {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: block;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

.card-text {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
}

/* Streaming & AI Support Matrix */
.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin-top: 1.25rem;
}

.badge-item {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border-ink);
  background-color: var(--bg-paper);
  color: var(--text-ink);
}

/* Pricing Cards & Comparison Table */
.price-tier-name {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  display: block;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.35rem;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: block;
}

.price-features {
  list-style: none;
  margin: 1.5rem 0 2rem 0;
  border-top: 1px solid var(--border-rule);
}

.price-features li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border-rule);
  font-size: 0.92rem;
  display: flex;
  justify-content: space-between;
}

.table-scroll {
  width: 100%;
  overflow-x: auto;
}

.editorial-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--surface-white);
  font-size: 0.94rem;
}

.editorial-table th,
.editorial-table td {
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border-ink);
  text-align: left;
}

.editorial-table th {
  background-color: var(--bg-paper);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}

/* User Reviews */
.review-quote {
  font-family: var(--font-display);
  font-size: 1.12rem;
  line-height: 1.65;
  margin-bottom: 1.5rem;
  color: var(--text-ink);
}

.review-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-rule);
  padding-top: 0.75rem;
  display: flex;
  justify-content: space-between;
}

/* FAQ Section */
.faq-item {
  border-bottom: 1px solid var(--border-ink);
  padding: 1.75rem 2rem;
  background-color: var(--surface-white);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-family: var(--font-display);
  font-size: 1.22rem;
  margin-bottom: 0.65rem;
}

.faq-answer {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.75;
  margin-bottom: 0;
}

/* Magazine Colophon Footer */
.colophon-footer {
  background-color: var(--bg-paper);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  align-items: center;
}

.footer-links-list a {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--signal-orange);
  border-bottom: 1px solid var(--signal-orange);
  padding-bottom: 2px;
}

.footer-links-list a:hover {
  color: var(--text-ink);
  border-bottom-color: var(--text-ink);
}

.colophon-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Subtle Scroll Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Article / Editorial Hub Styles */
.article-card {
  padding: 2.5rem 2rem;
  border-bottom: 1px solid var(--border-ink);
  background-color: var(--surface-white);
}

.article-meta {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.article-body p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-ink);
  margin-bottom: 1.15rem;
}

.article-body h3 {
  font-size: 1.28rem;
  margin: 1.75rem 0 0.75rem 0;
}

/* ==========================================================================
   Responsive Media Queries (@media) — Single Column Mobile & Finger-Friendly
   ========================================================================== */
@media (max-width: 1024px) {
  .site-header {
    grid-template-columns: 1fr;
  }
  .brand-cell,
  .nav-cell,
  .header-cta-cell {
    grid-column: span 12;
    border-right: none;
    border-bottom: 1px solid var(--border-ink);
  }
  .header-cta-cell {
    border-bottom: none;
    justify-content: flex-start;
    padding: 0.75rem 2rem;
  }
  .nav-cell {
    padding: 0.75rem 2rem;
  }
  .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9 {
    grid-column: span 12;
  }
  .border-r, .border-r-subtle {
    border-right: none;
    border-bottom: 1px solid var(--border-ink);
  }
  .editorial-columns {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 680px) {
  .page-shell {
    border-left: none;
    border-right: none;
  }
  .issue-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 0.6rem 1.25rem;
  }
  .grid-ruler {
    display: none;
  }
  .cell-pad,
  .cell-pad-lg,
  .article-card,
  .faq-item {
    padding: 1.75rem 1.25rem;
  }
  .brand-cell,
  .nav-cell,
  .header-cta-cell {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
  .nav-list {
    gap: 0.85rem 1.25rem;
  }
  .nav-list a {
    font-size: 0.95rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  .hero-cta-group,
  .hero-button-row {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }
  .btn-editorial,
  .editorial-link {
    width: 100%;
    min-height: 48px;
    justify-content: center;
  }
  .footer-links-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .footer-links-list a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }
}