/* ===================================
   Hausstack — Case Study Detail Pages
=================================== */

:root {
  --ink: #0A0A0A;
  --ink-2: #1a1a1a;
  --ink-3: #2b2b2b;
  --mute: #6b6557;
  --mute-2: #8a8374;
  --paper: #F5F3EE;
  --paper-2: #EDEAE0;
  --white: #ffffff;
  --signal: #F5C518;
  --signal-deep: #D9A800;
  --line: #e5e1d7;
  --line-2: #d7d2c4;
  --black: var(--ink);
  --charcoal: var(--ink-2);
  --card-dark: var(--ink-3);
  --slate: var(--mute);
  --soft: var(--mute-2);
  --mist: var(--paper-2);
  --amber: var(--signal);
  --amber-hover: var(--signal);
  --amber-dark: var(--signal-deep);
  --border-light: var(--line);
  --border-dark: rgba(255, 255, 255, 0.08);
  --green: #16A34A;
  --red: #DC2626;
  --blue: #2563EB;
  --sans: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: 'Geist Mono', ui-monospace, monospace;
  --serif: 'Instrument Serif', Georgia, serif;
  --max: 1200px;
  --radius: 14px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ========== NAV ========== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  background: rgba(245, 243, 238, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--max); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--sans);
  font-size: 20px; font-weight: 700; letter-spacing: -0.02em;
}
.logo-mark { display: inline-flex; flex-direction: column; gap: 3px; width: 22px; }
.stack-line { height: 3px; border-radius: 2px; }
.stack-line:nth-child(1) { width: 73%; background: var(--signal); }
.stack-line:nth-child(2) { width: 100%; background: var(--ink); }
.stack-line:nth-child(3) { width: 100%; background: var(--ink); }
.nav-back {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 500; color: var(--slate);
  transition: color 0.2s var(--ease);
}
.nav-back:hover { color: var(--black); }

/* ========== HERO ========== */
.cs-hero {
  padding: 140px 0 80px;
  background: var(--paper-2);
  position: relative; overflow: hidden;
}
.cs-hero::before {
  content: ""; position: absolute; top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(245, 197, 24, 0.1) 0%, transparent 60%);
  pointer-events: none;
}
.cs-hero .container { position: relative; z-index: 1; }
.cs-meta {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 24px; font-size: 13px; color: var(--slate);
}
.cs-tag {
  padding: 5px 14px; background: var(--ink); color: var(--signal);
  border-radius: 100px; font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.cs-title {
  font-family: var(--sans);
  font-size: clamp(44px, 6.5vw, 80px); font-weight: 700;
  line-height: 1.02; letter-spacing: -0.04em;
  margin-bottom: 24px; max-width: 900px;
}
.cs-lede {
  font-size: 20px; line-height: 1.5; color: var(--slate);
  max-width: 720px; margin-bottom: 48px;
}
.cs-hero-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px; padding-top: 40px; border-top: 1px solid var(--border-light);
}
.cs-stat-num {
  font-family: var(--sans);
  font-size: 44px; font-weight: 700; line-height: 1;
  letter-spacing: -0.03em; margin-bottom: 6px;
}
.cs-stat-num .accent { color: var(--signal); }
.cs-stat-label { font-size: 13px; color: var(--slate); font-weight: 500; }

/* ========== SECTIONS ========== */
.cs-section { padding: 100px 0; }
.cs-section--dark { background: var(--black); color: var(--white); }
.cs-section-head { max-width: 780px; margin-bottom: 64px; }
.cs-eyebrow {
  display: inline-block; font-family: var(--mono);
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--signal); margin-bottom: 20px;
}
.cs-section h2 {
  font-family: var(--sans);
  font-size: clamp(32px, 4.5vw, 52px); font-weight: 700;
  line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 20px;
}
.cs-section .lead {
  font-size: 18px; line-height: 1.6; color: var(--slate); max-width: 720px;
}
.cs-section--dark .lead { color: rgba(255,255,255,0.7); }

/* ========== BEFORE/AFTER ========== */
.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.ba-card { padding: 40px 36px; border-radius: var(--radius); border: 1px solid var(--border-light); }
.ba-before { background: var(--paper-2); }
.ba-after { background: var(--ink); color: var(--white); border-color: var(--ink); }
.ba-label {
  display: inline-block; font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 20px;
  padding: 4px 12px; border-radius: 100px;
}
.ba-before .ba-label { background: rgba(10,10,10,0.08); color: var(--slate); }
.ba-after .ba-label { background: var(--signal); color: var(--ink); }
.ba-card h3 {
  font-family: var(--sans);
  font-size: 24px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 20px;
}
.ba-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.ba-card li { display: flex; align-items: start; gap: 10px; font-size: 15px; line-height: 1.5; }
.ba-before li::before { content: "✗"; color: #c4454d; font-weight: 700; flex-shrink: 0; }
.ba-after li::before { content: "✓"; color: var(--signal); font-weight: 700; flex-shrink: 0; }
.ba-after li { color: rgba(255,255,255,0.85); }

/* ========== SCREENS LAYOUT ========== */
.screens { display: grid; grid-template-columns: 1fr; gap: 80px; }
.screen-block { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: center; }
.screen-block:nth-child(even) { direction: rtl; }
.screen-block:nth-child(even) > * { direction: ltr; }
.screen-info h3 {
  font-family: var(--sans);
  font-size: 32px; font-weight: 700; letter-spacing: -0.02em;
  line-height: 1.1; margin-bottom: 16px;
}
.cs-section--dark .screen-info h3 { color: var(--white); }
.screen-info p { font-size: 16px; line-height: 1.6; color: var(--slate); margin-bottom: 24px; }
.cs-section--dark .screen-info p { color: rgba(255,255,255,0.7); }
.screen-info ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.screen-info li { display: flex; align-items: start; gap: 10px; font-size: 15px; line-height: 1.5; }
.screen-info li::before { content: "→"; color: var(--signal); font-weight: 700; flex-shrink: 0; }
.cs-section--dark .screen-info li { color: rgba(255,255,255,0.8); }

/* ========== DETAILED MOCKUPS ========== */
.screen-visual {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, #0A0A0A 0%, #1a1a1a 100%);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 50px 100px -30px rgba(0,0,0,0.6);
}
.cs-section--dark .screen-visual {
  box-shadow: 0 50px 100px -30px rgba(245,197,24,0.15);
  background: linear-gradient(135deg, #1a1a1a 0%, #2a1a0a 100%);
}

/* App Window Shell */
.app {
  height: 100%;
  background: #FAFAFA;
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  font-size: 9px;
  color: #1A1A1A;
}

.app-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 14px;
  background: #F0F0F0;
  border-bottom: 1px solid #E4E4E7;
  flex-shrink: 0;
}
.app-dot { width: 9px; height: 9px; border-radius: 50%; }
.app-dot.r { background: #FF5F57; }
.app-dot.y { background: #FEBC2E; }
.app-dot.g { background: #28C840; }
.app-url {
  flex: 1;
  background: #FFFFFF;
  border-radius: 5px;
  padding: 3px 10px;
  font-size: 8px;
  color: #888;
  margin-left: 8px;
  border: 1px solid #E4E4E7;
}

.app-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* Sidebar with real labels */
.app-side {
  width: 130px;
  background: #0A0A0A;
  color: #fff;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.app-side-logo {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 8px 14px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 11px;
  color: var(--brand, var(--amber));
  letter-spacing: -0.02em;
}
.app-side-logo::before {
  content: "";
  width: 14px; height: 14px;
  background: var(--brand, var(--amber));
  border-radius: var(--brand-radius, 3px);
  flex-shrink: 0;
}

.app-side-heading {
  font-size: 7px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  padding: 8px 8px 4px;
  font-weight: 600;
}

.app-side-item {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 8px;
  border-radius: 4px;
  font-size: 9px;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
  cursor: default;
}
.app-side-item::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 2px;
  background: rgba(255,255,255,0.2);
  flex-shrink: 0;
}
.app-side-item.active {
  background: var(--brand-soft, rgba(245,197,24,0.15));
  color: var(--brand, var(--amber));
}
.app-side-item.active::before { background: var(--brand, var(--amber)); }
.app-side-badge {
  margin-left: auto;
  background: var(--brand, var(--amber));
  color: #fff;
  font-size: 7px;
  padding: 1px 5px;
  border-radius: 100px;
  font-weight: 700;
}

/* Main content area */
.app-main {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #FAFAFA;
}

.app-top {
  padding: 10px 16px;
  border-bottom: 1px solid #E4E4E7;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  flex-shrink: 0;
}

.app-title {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: -0.01em;
}
.app-sub {
  font-size: 8px;
  color: #888;
  margin-top: 2px;
}

.app-btn {
  padding: 4px 10px;
  background: var(--brand, var(--amber));
  color: var(--brand-text, #fff);
  border-radius: 4px;
  font-size: 8px;
  font-weight: 600;
}
.app-btn.ghost { background: #F4F4F5; color: #666; }

.app-content {
  flex: 1;
  padding: 12px 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* KPI Row */
.kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.kpi {
  background: #fff;
  border: 1px solid #E4E4E7;
  border-radius: 6px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.kpi-label {
  font-size: 7px;
  color: #737373;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}
.kpi-value {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}
.kpi-delta {
  font-size: 7px;
  font-weight: 600;
}
.kpi-delta.up { color: var(--green); }
.kpi-delta.down { color: var(--red); }

/* Chart */
.chart {
  background: #fff;
  border: 1px solid #E4E4E7;
  border-radius: 6px;
  padding: 10px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 0;
}
.chart-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.chart-title {
  font-size: 9px;
  font-weight: 600;
}
.chart-legend {
  display: flex;
  gap: 8px;
  font-size: 7px;
  color: #737373;
}
.chart-legend span {
  display: flex; align-items: center; gap: 4px;
}
.chart-legend span::before {
  content: ""; width: 6px; height: 6px; border-radius: 2px;
  background: var(--amber);
}
.chart-legend span.alt::before { background: #D4D4D8; }

.chart-svg {
  flex: 1;
  min-height: 0;
  position: relative;
}

/* Data table */
.tbl {
  background: #fff;
  border: 1px solid #E4E4E7;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}
.tbl-head {
  display: grid;
  padding: 7px 10px;
  background: #FAFAFA;
  border-bottom: 1px solid #E4E4E7;
  font-size: 7px;
  font-weight: 700;
  color: #737373;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  gap: 8px;
}
.tbl-row {
  display: grid;
  padding: 6px 10px;
  border-bottom: 1px solid #F4F4F5;
  font-size: 8px;
  align-items: center;
  gap: 8px;
}
.tbl-row:last-child { border-bottom: none; }
.tbl-row.active { background: var(--brand-softer, rgba(245,197,24,0.08)); }
.tbl-row strong { font-weight: 700; }
.tbl-row .muted { color: #888; }

.badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 100px;
  font-size: 7px;
  font-weight: 600;
  white-space: nowrap;
}
.badge.green { background: #DCFCE7; color: var(--green); }
.badge.amber { background: #FEF3C7; color: #B45309; }
.badge.red { background: #FEE2E2; color: var(--red); }
.badge.blue { background: #DBEAFE; color: var(--blue); }
.badge.gray { background: #F4F4F5; color: #525252; }

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--brand, var(--amber));
  color: var(--brand-text, #fff);
  font-size: 7px;
  font-weight: 700;
  flex-shrink: 0;
}
.avatar.b { background: #60A5FA; color: #fff; }
.avatar.g { background: #34D399; color: #000; }
.avatar.p { background: #C084FC; color: #fff; }
.avatar.r { background: #F87171; color: #fff; }

.name-cell {
  display: flex; align-items: center; gap: 6px;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
}

/* Kanban */
.kanban {
  display: flex;
  gap: 8px;
  flex: 1;
  min-height: 0;
}
.kcol {
  flex: 1;
  background: #F4F4F5;
  border-radius: 6px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.kcol-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2px 4px;
  font-size: 8px;
  font-weight: 700;
  color: #1a1a1a;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.kcol-count {
  background: rgba(10,10,10,0.1);
  border-radius: 100px;
  padding: 1px 6px;
  font-size: 7px;
  font-weight: 600;
}
.kitem {
  background: #fff;
  border-radius: 5px;
  padding: 7px 8px;
  font-size: 8px;
  border-left: 3px solid #A3A3A3;
  display: flex;
  flex-direction: column;
  gap: 3px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.kitem.amber { border-left-color: var(--amber); }
.kitem.green { border-left-color: var(--green); }
.kitem.blue { border-left-color: var(--blue); }
.kitem.red { border-left-color: var(--red); }
.kitem-t {
  font-weight: 700;
  font-size: 8px;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kitem-s {
  font-size: 7px;
  color: #737373;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kitem-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2px;
}
.kitem-tag {
  font-size: 6px;
  padding: 1px 5px;
  border-radius: 100px;
  background: #F4F4F5;
  color: #525252;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Calendar */
.cal {
  background: #fff;
  border: 1px solid #E4E4E7;
  border-radius: 6px;
  padding: 10px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
}
.cal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.cal-month {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  flex: 1;
  min-height: 0;
}
.cal-dow {
  font-size: 7px;
  color: #737373;
  text-align: center;
  font-weight: 600;
  padding-bottom: 2px;
}
.cal-day {
  background: #FAFAFA;
  border: 1px solid #F4F4F5;
  border-radius: 3px;
  padding: 3px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 7px;
  min-height: 0;
}
.cal-day.active { border-color: var(--amber); background: rgba(245,197,24,0.08); }
.cal-day.muted { color: #CCC; }
.cal-ev {
  font-size: 6px;
  padding: 1px 3px;
  border-radius: 2px;
  background: rgba(245,197,24,0.2);
  color: #78350F;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cal-ev.blue { background: rgba(37,99,235,0.15); color: var(--blue); }
.cal-ev.green { background: rgba(22,163,74,0.15); color: var(--green); }

/* Lead timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  overflow: hidden;
}
.tl-item {
  display: flex;
  gap: 8px;
  padding: 6px 8px;
  background: #fff;
  border: 1px solid #E4E4E7;
  border-radius: 5px;
}
.tl-icon {
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--amber); color: #000;
  display: flex; align-items: center; justify-content: center;
  font-size: 7px; font-weight: 700;
  flex-shrink: 0;
}
.tl-icon.g { background: var(--green); color: #fff; }
.tl-icon.b { background: var(--blue); color: #fff; }
.tl-body { flex: 1; min-width: 0; }
.tl-t { font-size: 8px; font-weight: 600; }
.tl-s { font-size: 7px; color: #737373; }

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2px;
  background: var(--border-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}
.cs-section--dark .feature-grid { background: var(--border-dark); border-color: var(--border-dark); }
.feat { background: var(--paper); padding: 32px 28px; transition: background 0.3s var(--ease); }
.cs-section--dark .feat { background: var(--ink); }
.feat:hover { background: var(--paper-2); }
.cs-section--dark .feat:hover { background: var(--ink-2); }
.feat-icon { color: var(--signal); font-size: 20px; margin-bottom: 16px; }
.feat h4 {
  font-family: var(--sans);
  font-size: 18px; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 10px;
}
.feat p { font-size: 14px; line-height: 1.5; color: var(--slate); }
.cs-section--dark .feat p { color: rgba(255,255,255,0.6); }

/* Tools replaced */
.tools-replaced { background: var(--paper-2); padding: 48px 40px; border-radius: var(--radius); margin-top: 48px; }
.tools-replaced h3 {
  font-family: var(--sans);
  font-size: 20px; font-weight: 700; margin-bottom: 24px;
}
.tools-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.tool-chip {
  padding: 10px 18px; background: var(--paper);
  border: 1px solid var(--line); border-radius: 100px;
  font-size: 14px; font-weight: 500; color: var(--slate);
  text-decoration: line-through;
  text-decoration-color: rgba(196, 69, 77, 0.5);
  text-decoration-thickness: 1.5px;
}

/* Results */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px; padding: 48px 40px;
  background: var(--signal); border-radius: var(--radius); color: var(--ink);
}
.result-item { text-align: center; }
.result-num {
  font-family: var(--sans);
  font-size: 56px; font-weight: 700; letter-spacing: -0.03em; line-height: 1;
  margin-bottom: 8px;
}
.result-label { font-size: 14px; font-weight: 500; color: rgba(10,10,10,0.8); }

/* CTA */
.cs-cta { padding: 100px 0; background: var(--ink); color: var(--white); text-align: center; }
.cs-cta h2 {
  font-family: var(--sans);
  font-size: clamp(32px, 5vw, 56px); font-weight: 700; letter-spacing: -0.03em;
  line-height: 1.05; margin-bottom: 20px;
}
.cs-cta p { font-size: 18px; color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 40px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 32px; border-radius: 2px; font-weight: 600; font-size: 16px;
  transition: all 0.2s var(--ease);
}
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover {
  background: var(--ink-2); transform: translateY(-1px);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer { background: var(--ink-2); color: rgba(255,255,255,0.5); padding: 32px 0; text-align: center; font-size: 13px; }
.footer a { color: var(--signal); }

/* ========== RESPONSIVE ========== */

/* Tablet */
@media (max-width: 768px) {
  /* Global */
  .container { padding: 0 20px; }

  /* Nav */
  .nav { padding: 12px 0; }
  .nav-inner { padding: 0 20px; }
  .logo { font-size: 17px; gap: 8px; }
  .logo-mark { width: 18px; }
  .nav-back { font-size: 13px; }

  /* Hero */
  .cs-hero { padding: 100px 0 48px; }
  .cs-lede { font-size: 17px; margin-bottom: 32px; }
  .cs-hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding-top: 28px;
  }
  .cs-stat-num { font-size: 36px; }
  .cs-stat-label { font-size: 12px; }

  /* Sections */
  .cs-section { padding: 60px 0; }
  .cs-section-head { margin-bottom: 40px; }
  .cs-section .lead { font-size: 16px; }

  /* Before/After */
  .ba-grid { grid-template-columns: 1fr; gap: 20px; }
  .ba-card { padding: 28px 24px; }
  .ba-card h3 { font-size: 20px; }
  .ba-card li { font-size: 14px; }

  /* Screen blocks */
  .screens { gap: 48px; }
  .screen-block {
    display: flex;
    flex-direction: column-reverse;
    gap: 28px;
  }
  .screen-block:nth-child(even) {
    direction: ltr;
    flex-direction: column-reverse;
  }
  .screen-block:nth-child(even) > * { direction: ltr; }

  .screen-info h3 { font-size: 24px; }
  .screen-info p { font-size: 15px; }
  .screen-info li { font-size: 14px; }

  .screen-visual { padding: 16px; aspect-ratio: auto; min-height: 300px; }
  .app-side { display: none; }
  .app { font-size: 8px; }

  /* Features grid */
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feat { padding: 24px 20px; }
  .feat h4 { font-size: 16px; }
  .feat p { font-size: 13px; }

  /* Tools replaced */
  .tools-replaced { padding: 32px 24px; margin-top: 32px; }
  .tools-replaced h3 { font-size: 18px; margin-bottom: 16px; }
  .tool-chip { padding: 8px 14px; font-size: 13px; }

  /* Results */
  .results-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 32px 24px;
  }
  .result-num { font-size: 40px; }
  .result-label { font-size: 13px; }

  /* CTA */
  .cs-cta { padding: 60px 0; }
  .cs-cta p { font-size: 16px; margin-bottom: 28px; }
  .btn { padding: 14px 28px; font-size: 15px; width: 100%; justify-content: center; }

  /* Footer */
  .footer { padding: 24px 0; font-size: 12px; }
}

/* Phone */
@media (max-width: 480px) {
  /* Nav */
  .logo { font-size: 15px; gap: 6px; }
  .logo-mark { width: 16px; }
  .nav-back { font-size: 12px; gap: 4px; }

  /* Hero */
  .cs-hero { padding: 84px 0 36px; }
  .cs-meta { font-size: 12px; gap: 8px; }
  .cs-tag { font-size: 11px; padding: 4px 10px; }
  .cs-lede { font-size: 15px; line-height: 1.55; margin-bottom: 24px; }
  .cs-hero-stats {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-top: 24px;
  }
  .cs-stat-num { font-size: 32px; }

  /* Section headings */
  .cs-section { padding: 48px 0; }
  .cs-section-head { margin-bottom: 28px; }
  .cs-section .lead { font-size: 15px; }

  /* Before/After */
  .ba-card { padding: 24px 20px; }
  .ba-card h3 { font-size: 18px; }
  .ba-card li { font-size: 13px; }

  /* Screen blocks */
  .screens { gap: 36px; }
  .screen-block { gap: 20px; }
  .screen-visual { padding: 10px; min-height: 240px; }
  .screen-info h3 { font-size: 22px; }
  .screen-info p { font-size: 14px; }
  .screen-info li { font-size: 13px; }

  /* App mockup scaling */
  .app-bar { padding: 6px 10px; gap: 5px; }
  .app-dot { width: 7px; height: 7px; }
  .app-url { font-size: 7px; padding: 2px 8px; }
  .app-title { font-size: 10px; }
  .app-sub { font-size: 7px; }
  .app-btn { font-size: 7px; padding: 3px 8px; }
  .app-top { padding: 8px 12px; }
  .app-content { padding: 8px 12px; gap: 8px; }
  .kpi { padding: 6px 8px; }
  .kpi-value { font-size: 11px; }
  .kpi-label { font-size: 6px; }
  .kpi-delta { font-size: 6px; }
  .tbl-head { padding: 5px 8px; font-size: 6px; }
  .tbl-row { padding: 4px 8px; font-size: 7px; }
  .kcol { padding: 6px; }
  .kcol-head { font-size: 7px; }
  .kitem { padding: 5px 6px; font-size: 7px; }
  .kitem-t { font-size: 7px; }
  .kitem-s { font-size: 6px; }

  /* Features grid */
  .feature-grid { grid-template-columns: 1fr; }
  .feat { padding: 20px; }

  /* Tools */
  .tools-replaced { padding: 24px 20px; }
  .tool-chip { padding: 8px 12px; font-size: 12px; }

  /* Results */
  .results-grid { padding: 24px 20px; gap: 20px; }
  .result-num { font-size: 32px; }
  .result-label { font-size: 12px; }

  /* CTA */
  .cs-cta { padding: 48px 0; }
  .cs-cta p { font-size: 15px; }
  .btn { padding: 14px 20px; font-size: 14px; }

  /* Footer */
  .footer { padding: 20px 0; }
}

/* Prevent horizontal scroll at all widths */
html, body { overflow-x: hidden; max-width: 100vw; }