/* =========================================================================
   GridPath — marketing site
   Light theme. The desktop app is dark; the web is sunny.
   ========================================================================= */

:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f8;
  --bg-card: #ffffff;
  --bg-muted: #f1f1f3;
  /* Softened body text from #0a0a0a (near-pure black) to a warmer
     near-black. Reads as "confident dark" without the dire harshness
     of true black on white. Cascades to buttons, headings, brand mark. */
  --text: #1d1d1f;
  --text-soft: #44444a;
  --text-mute: #71717a;
  --border: #e4e4e7;
  --border-strong: #d4d4d8;
  --accent: #3363AD;
  --accent-hover: #2a4f8c;
  --accent-soft: rgba(51, 99, 173, 0.08);
  --green: #16a34a;
  --green-soft: #dcfce7;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.12);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--bg-muted);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.92em;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: 760px; }

/* ============================= NAV ============================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--text); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 500;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
}
.nav-cta:hover { background: var(--accent-hover); color: #fff !important; }

/* ============================= BUTTONS ============================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  border: 1px solid transparent;
  transition: background 120ms ease, transform 120ms ease, box-shadow 120ms ease;
  white-space: nowrap;
}
/* Download CTAs use a black/white pair, Linear-style monochrome:
   primary = solid black, secondary = outlined.
   Brand blue stays the accent for nav-cta, links, and the in-content tiles. */
.btn-primary {
  background: var(--text);
  color: #fff !important;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: #2d2d30; transform: translateY(-1px); }
.btn-secondary {
  background: #fff;
  color: var(--text) !important;
  border-color: var(--text);
}
.btn-secondary:hover { background: var(--bg-muted); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--text);
  font-weight: 500;
}
.btn-ghost:hover { color: var(--accent); }
.btn-large {
  padding: 14px 28px;
  font-size: 15px;
  border-radius: 10px;
  /* Equal width so "Mac" and "Windows" buttons sit balanced regardless
     of label length. */
  min-width: 220px;
}

/* ============================= HERO ============================= */
.hero {
  /* Top whitespace tuned so the headline reads as centered against the
     fold without sitting too low. A "smidge" up from the prior 180px. */
  padding: 140px 0 56px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
  text-align: center;
}
@media (max-width: 720px) { .hero { padding: 88px 0 40px; } }
.hero-inner { max-width: 880px; margin: 0 auto; }
.hero h1 {
  font-size: clamp(36px, 4.6vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 0 0 20px;
  font-weight: 700;
}
.lede {
  font-size: clamp(16px, 1.3vw, 18px);
  color: var(--text-soft);
  margin: 0 auto 32px;
  max-width: 600px;
  line-height: 1.55;
}
.lede strong { color: var(--text); font-weight: 600; }
.hero-ctas {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

/* ============================= SCREENSHOT ============================= */
.screenshot-section {
  padding: 40px 0 100px;
  background: var(--bg-soft);
}
.screenshot-frame {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  background: #1e1e1e;
}
.ui-window {
  display: flex;
  flex-direction: column;
  background: #1e1e1e;
  color: #d4d4d4;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
  border-radius: var(--radius-lg);
  overflow: hidden;
  /* Treat the whole mockup as a static screenshot, not a live UI.
     Disables hover/cursor changes on buttons, prevents text selection
     on cell contents, and blocks any focus rings — visitors won't try
     to click Accept/Reject or type in the composer. */
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
}
.ui-window button { cursor: default; }
.ui-titlebar {
  background: #2a2a2a;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid #333;
  flex-shrink: 0;
}
.ui-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.ui-dot-red { background: #ff5f57; }
.ui-dot-yellow { background: #febc2e; }
.ui-dot-green { background: #28c840; }
.ui-title {
  margin-left: 14px;
  font-size: 12px;
  color: #9b9b9b;
  letter-spacing: 0.02em;
}
.ui-body {
  display: grid;
  grid-template-columns: 200px 1fr 320px;
  min-height: 540px;
}
@media (max-width: 900px) {
  .ui-body { grid-template-columns: 1fr; }
  .ui-sidebar, .ui-chat { display: none; }
}

/* On narrow viewports (iPad portrait, small laptops) cut a couple of
   sidebar sessions + two non-essential Tesla rows so the mockup doesn't
   tower above the fold. Sidebar entries hide on tablet-and-down (where
   the sidebar is still visible at 900–1100px); grid rows hide on actual
   phones, where vertical real estate is scarcest. */
@media (max-width: 1100px) {
  .ui-session-hide-mobile { display: none; }
}
@media (max-width: 600px) {
  .ui-row-hide-mobile { display: none; }
}

/* Sidebar */
.ui-sidebar {
  background: #1a1a1a;
  border-right: 1px solid #2a2a2a;
  padding: 12px 8px;
  font-size: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ui-sidebar-h {
  font-size: 10px;
  color: #7c7c7c;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 10px 4px;
  font-weight: 600;
}
.ui-session {
  padding: 8px 10px;
  border-radius: 5px;
  cursor: pointer;
  border-left: 2px solid transparent;
}
.ui-session:hover { background: #232323; }
.ui-session-active {
  background: rgba(51, 99, 173, 0.18);
  border-left-color: #3363AD;
}
.ui-session-name {
  color: #e4e4e4;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ui-session-meta {
  color: #7c7c7c;
  font-size: 10px;
  margin-top: 2px;
}

/* Main grid area */
.ui-main {
  display: flex;
  flex-direction: column;
  background: #1e1e1e;
  min-width: 0;
}
.ui-tabs {
  display: flex;
  background: #1a1a1a;
  border-bottom: 1px solid #2a2a2a;
  padding: 0 8px;
  height: 36px;
  flex-shrink: 0;
}
.ui-tab {
  padding: 8px 14px;
  font-size: 12px;
  color: #9b9b9b;
  border-right: 1px solid #2a2a2a;
  display: flex;
  align-items: center;
  cursor: pointer;
}
.ui-tab:hover { color: #e4e4e4; }
.ui-tab-active {
  color: #e4e4e4;
  background: #1e1e1e;
  border-bottom: 2px solid #3363AD;
}
.ui-tab-new {
  border-right: 0;
  color: #7c7c7c;
  padding: 8px 12px;
  font-size: 14px;
}

/* Formatting toolbar — slim, grouped buttons with subtle dividers.
   Visual cue that GridPath is a real spreadsheet app with the ops
   you'd expect (bold, color, alignment, number format) — not just
   a chat-driven canvas. */
.ui-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: #232323;
  border-bottom: 1px solid #2a2a2a;
  font-size: 11px;
  color: #d4d4d4;
  flex-wrap: nowrap;
  overflow-x: hidden;
  flex-shrink: 0;
}
.ui-toolgroup {
  display: flex;
  align-items: center;
  gap: 2px;
}
.ui-toolsep {
  width: 1px;
  height: 18px;
  background: #383838;
  margin: 0 4px;
  flex-shrink: 0;
}
.ui-toolbtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  width: 26px;
  height: 26px;
  background: transparent;
  border: 0;
  border-radius: 4px;
  color: #c4c4c4;
  font-size: 12px;
  font-family: -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  padding: 0;
  position: relative;
}
.ui-toolbtn svg { width: 14px; height: 14px; }
.ui-toolbtn-wide { width: 32px; font-size: 10px; }
.ui-toolbtn-active {
  background: #3363AD;
  color: #fff;
}
.ui-toolbtn-stack {
  flex-direction: column;
  gap: 1px;
  padding-top: 2px;
}
.ui-swatch {
  display: block;
  width: 14px;
  height: 3px;
  border-radius: 1px;
}
.ui-swatch-fontc { background: #1d1d1f; }
.ui-swatch-fillc { background: #fde047; }
.ui-toolselect {
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  height: 24px;
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 4px;
  color: #d4d4d4;
  font-size: 11px;
  min-width: 70px;
}
.ui-toolselect::after {
  content: '▾';
  margin-left: auto;
  padding-left: 8px;
  color: #7c7c7c;
  font-size: 9px;
}
.ui-toolselect-sm { min-width: 36px; }

.ui-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 36px repeat(5, 1fr);
  background: #1e1e1e;
  align-content: start;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}
.ui-grid-corner,
.ui-grid-header,
.ui-grid-rownum,
.ui-grid-cell {
  border-right: 1px solid #262626;
  border-bottom: 1px solid #262626;
  padding: 7px 10px;
  display: flex;
  align-items: center;
  min-height: 28px;
}
.ui-grid-corner { background: #252526; }
.ui-grid-header {
  background: #252526;
  color: #9b9b9b;
  justify-content: center;
  font-weight: 600;
}
.ui-grid-rownum {
  background: #252526;
  color: #9b9b9b;
  justify-content: center;
}
.ui-grid-cell { color: #d4d4d4; }
.ui-cell-title {
  color: #e4e4e4;
  font-weight: 700;
  font-family: -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 13px;
}
.ui-cell-header {
  color: #e4e4e4;
  font-weight: 600;
  font-family: -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 12px;
  background: #232323;
}
.ui-cell-forecast {
  color: #ffd700;
  background: rgba(255, 215, 0, 0.06);
}
.ui-cell-label {
  color: #e4e4e4;
  font-family: -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}
.ui-cell-num {
  justify-content: flex-end;
  color: #d4d4d4;
}
.ui-cell-pct { color: #93c5fd; }
.ui-cell-pending {
  background: rgba(134, 239, 172, 0.14);
  color: #86efac;
}

.ui-status {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #1a1a1a;
  border-top: 1px solid #2a2a2a;
  padding: 6px 14px;
  font-size: 11px;
  color: #9b9b9b;
}
.ui-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
.ui-status-right {
  margin-left: auto;
  color: #6f6f6f;
}

/* Chat panel */
.ui-chat {
  background: #252526;
  border-left: 1px solid #2a2a2a;
  display: flex;
  flex-direction: column;
  padding: 14px;
  gap: 10px;
  font-size: 12px;
  overflow: hidden;
}
.ui-chat-h {
  font-size: 10px;
  color: #7c7c7c;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 4px;
}
.ui-chat-bubble {
  padding: 9px 11px;
  border-radius: 8px;
  line-height: 1.45;
  font-size: 12px;
}
.ui-chat-user {
  background: #3363AD;
  color: #fff;
  align-self: flex-end;
  max-width: 90%;
}
.ui-chat-agent {
  background: #2a2a2a;
  color: #d4d4d4;
  align-self: flex-start;
  max-width: 95%;
}
.ui-chat-tool {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  background: #1e1e1e;
  border-radius: 5px;
  color: #b3b3b3;
  font-size: 11px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.ui-tool-icon { color: #3363AD; font-size: 12px; }
.ui-chat-batch {
  background: #1e1e1e;
  border: 1px solid #2a2a2a;
  border-radius: 6px;
  padding: 10px;
  margin-top: 4px;
}
.ui-batch-header {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: #e4e4e4;
  font-weight: 500;
  margin-bottom: 8px;
}
.ui-batch-count { color: #7c7c7c; }
.ui-batch-actions {
  display: flex;
  gap: 6px;
}
.ui-btn-accept,
.ui-btn-reject {
  flex: 1;
  border: 0;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
}
.ui-btn-accept {
  background: #16a34a;
  color: #fff;
}
.ui-btn-reject {
  background: transparent;
  border: 1px solid #7f1d1d;
  color: #fca5a5;
}
.ui-chat-composer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ui-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  background: rgba(51, 99, 173, 0.15);
  color: #93c5fd;
  padding: 3px 8px;
  border-radius: 10px;
  border: 1px solid rgba(51, 99, 173, 0.35);
  align-self: flex-start;
}
.ui-composer-row {
  display: flex;
  gap: 6px;
  align-items: stretch;
}
.ui-composer-input {
  flex: 1;
  background: #161616;
  border: 1px solid #333;
  border-radius: 5px;
  padding: 8px 10px;
  color: #6f6f6f;
  font-size: 11px;
}
.ui-send {
  width: 32px;
  height: 32px;
  background: #3363AD;
  border: 0;
  border-radius: 5px;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

/* ============================= SECTION PRIMITIVES ============================= */
section.capabilities,
section.providers,
section.faq,
section.download { padding: 100px 0; }
.section-title {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.022em;
  margin: 0 0 14px;
  text-align: center;
  line-height: 1.15;
}
.section-sub {
  font-size: 17px;
  color: var(--text-soft);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
  line-height: 1.5;
}

/* ============================= CAPABILITIES ============================= */
.capabilities { background: var(--bg); }
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 880px) { .cap-grid { grid-template-columns: 1fr; } }
.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}
.cap-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
/* Capability tiles — soft tinted background, colored icon. Each card
   gets its own hue but at ~10% saturation, so the row reads as gentle
   variation rather than a Skittles bag. Stripe / Linear use this pattern.
   Tone the icon down to the full hue, no white-on-saturated. */
.cap-icon {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.cap-icon svg { width: 22px; height: 22px; }

.cap-icon-indigo  { background: rgba(99, 102, 241, 0.11);  color: #6366f1; }
.cap-icon-emerald { background: rgba(16, 185, 129, 0.11);  color: #10b981; }
.cap-icon-amber   { background: rgba(245, 158, 11, 0.13);  color: #f59e0b; }
.cap-icon-sky     { background: rgba(51, 99, 173, 0.10);   color: #3363AD; }
.cap-icon-rose    { background: rgba(244, 63, 94, 0.10);   color: #f43f5e; }
.cap-icon-teal    { background: rgba(20, 184, 166, 0.11);  color: #14b8a6; }
.cap-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.015em;
}
.cap-card p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0;
  line-height: 1.55;
}

/* ============================= PROVIDERS ============================= */
.providers { background: var(--bg-soft); }
.provider-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 0 auto 28px;
  max-width: 680px;
}
@media (max-width: 720px) { .provider-grid { grid-template-columns: 1fr; } }
.provider-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  position: relative;
}
.provider-soon { opacity: 0.55; }
.provider-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: #fff;
}
.provider-logo svg { width: 28px; height: 28px; }
.provider-claude { background: #C15F3C; }
.provider-openai { background: #10A37F; }
.provider-gemini { background: #4285F4; }
.provider-grok { background: #1a1a1a; }
.provider-name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.provider-sub {
  font-size: 12px;
  color: var(--text-mute);
  margin-bottom: 14px;
  min-height: 32px;
}
.provider-badge {
  display: inline-block;
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--bg-muted);
  color: var(--text-mute);
  font-weight: 500;
}
.provider-badge-on {
  background: #dcfce7;
  color: #166534;
}
.provider-note {
  text-align: center;
  color: var(--text-mute);
  font-size: 13px;
  margin: 0;
}

/* ============================= FAQ ============================= */
.faq { background: var(--bg); }
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  margin-left: auto;
  color: var(--text-mute);
  font-size: 20px;
  font-weight: 300;
  transition: transform 200ms ease;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
  margin: 12px 0 0;
  color: var(--text-soft);
  font-size: 14.5px;
  line-height: 1.65;
  max-width: 720px;
}

/* ============================= DOWNLOAD ============================= */
.download {
  background: var(--bg-soft);
  text-align: center;
}
.download-inner { max-width: 700px; }
.download h2 {
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 12px;
  line-height: 1.1;
}
.download-sub {
  font-size: 16px;
  color: var(--text-soft);
  margin: 0 0 32px;
}
.download-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 16px;
}
.download-fineprint {
  font-size: 13px;
  color: var(--text-mute);
  margin: 0;
}

/* ============================= LEGAL / CONTACT PAGES ============================= */
.legal {
  padding: 80px 0 100px;
  background: var(--bg);
}
.legal-title {
  font-size: clamp(36px, 4.6vw, 56px);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0 0 8px;
  line-height: 1.08;
}
.legal-meta {
  color: var(--text-mute);
  font-size: 13px;
  margin: 0 0 28px;
  letter-spacing: 0.03em;
}
.legal-lede {
  font-size: 17px;
  color: var(--text-soft);
  margin: 0 0 36px;
  line-height: 1.55;
}
.legal h2 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 36px 0 12px;
}
.legal p {
  color: var(--text-soft);
  line-height: 1.65;
  margin: 0 0 14px;
  font-size: 15px;
}
.legal ul {
  color: var(--text-soft);
  line-height: 1.65;
  font-size: 15px;
  padding-left: 22px;
  margin: 0 0 14px;
}
.legal ul li { margin-bottom: 6px; }
.legal strong { color: var(--text); }

/* Contact-page card grid */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 16px 0 56px;
}
@media (max-width: 720px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--text);
  transition: border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}
.contact-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--text);
}
.contact-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.015em;
}
.contact-card p {
  font-size: 14px;
  color: var(--text-soft);
  margin: 0;
}
.contact-link {
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  margin-top: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.legal-note {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin-top: 40px;
}
.legal-note h2 { margin: 0 0 8px; font-size: 16px; }
.legal-note p { margin: 0; font-size: 14px; }

/* ============================= FOOTER ============================= */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
.footer-tag {
  margin: 10px 0 0;
  color: var(--text-mute);
  font-size: 13px;
}
.footer-col h4 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-mute);
  margin: 0 0 14px;
  font-weight: 600;
}
.footer-col a {
  display: block;
  color: var(--text-soft);
  margin-bottom: 8px;
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-mute);
}

/* ============================= MOBILE / RESPONSIVE ============================= */
/* Safety net: nothing should ever cause horizontal scroll on a phone. */
html, body {
  overflow-x: hidden;
  max-width: 100%;
}
img, svg, video, iframe { max-width: 100%; height: auto; }

/* Phones (<= 600px): single-column buttons, hide non-CTA nav links, tighter pads. */
@media (max-width: 600px) {
  .container { padding: 0 16px; }

  /* Nav: keep only brand + Download CTA visible. The anchor links to
     sections lower on the page are pure noise on phones where the user
     scrolls anyway. */
  .nav-links a:not(.nav-cta) { display: none; }
  .nav-links { gap: 12px; }
  .nav-cta { padding: 8px 14px; font-size: 13px; }

  /* Hero & download CTAs stack to full-width so the download button is
     obvious and always within thumb-reach. min-width:220px (designed for
     desktop side-by-side) would overflow narrow viewports. */
  .hero-ctas,
  .download-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .hero-ctas .btn-large,
  .download-buttons .btn-large {
    min-width: 0;
    width: 100%;
  }

  /* Hero typography & spacing tightened to fit above the fold on a phone
     — primary download button visible without scrolling on iPhone-sized
     viewports (375–414px). */
  .hero { padding: 64px 0 32px; }
  .hero h1 { font-size: 30px; line-height: 1.15; }
  .lede { font-size: 15px; margin-bottom: 24px; }

  /* Footer collapses cleanly. */
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-brand { grid-column: auto; }
}

/* Tiny phones (<= 380px): even smaller padding, smaller H1. */
@media (max-width: 380px) {
  .container { padding: 0 12px; }
  .hero { padding: 48px 0 24px; }
  .hero h1 { font-size: 26px; }
}