/* ============================================
   MOTODASH — styles.css
   Design: Industrial dashboard, minimal, precise
   ============================================ */

/* ── VARIABLES ── */
:root {
  --accent: #d62828;
  --accent-hover: #b81c1c;

  --font-mono: 'Space Mono', monospace;
  --font-sans: 'DM Sans', sans-serif;

  --radius: 4px;
  --radius-lg: 8px;
  --transition: 180ms ease;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
}

[data-theme="dark"] {
  --bg: #0e0e0e;
  --surface: #161616;
  --surface-2: #1f1f1f;
  --border: #2a2a2a;
  --text: #e8e8e8;
  --text-muted: #888888;
  --text-faint: #555555;
  --tag-bg: #1f1f1f;
  --tag-text: #aaaaaa;
  --phone-bg: #111111;
  --phone-border: #2a2a2a;
  --screen-bg: #080808;
}

[data-theme="light"] {
  --bg: #fafafa;
  --surface: #ffffff;
  --surface-2: #f2f2f2;
  --border: #e0e0e0;
  --text: #111111;
  --text-muted: #555555;
  --text-faint: #aaaaaa;
  --tag-bg: #eeeeee;
  --tag-text: #555555;
  --phone-bg: #f0f0f0;
  --phone-border: #d0d0d0;
  --screen-bg: #111111;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color var(--transition), color var(--transition);
}


.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  object-fit: cover;
  flex-shrink: 0;
  background-color: var(--accent);
  /* Placeholder shown when image is missing */
  min-width: 28px;
}

img {
  max-width: 100%;
  display: block;
}

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

a:hover { text-decoration: underline; }

ul { list-style: none; }

/* ── CONTAINER ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--text-muted);
}

strong { font-weight: 500; color: var(--text); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1.5rem;
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--text-muted);
  background-color: var(--surface-2);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-muted);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
}

.btn-ghost:hover { color: var(--text); }

.btn-sm { padding: 0.5rem 1rem; font-size: 0.72rem; }
.btn-lg { padding: 1rem 2rem; font-size: 0.85rem; }

/* ── HEADER ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: background-color var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 60px;
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center; /* changed from baseline */
  justify-content: center; /* ensures proper centering when needed */
  gap: 0.4rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-name {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.03em;
}

.logo-version {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 400;
  line-height: 1; /* prevents baseline offset */
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-left: auto;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition), border-color var(--transition);
  padding: 0;
  flex-shrink: 0;
}

.theme-toggle:hover { color: var(--text); border-color: var(--text-muted); }

.theme-toggle svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* ── HERO ── */
.hero {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.hero-heading {
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.hero-sub {
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
  color: var(--text-muted);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  margin-bottom: var(--space-md);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--tag-text);
  background-color: var(--tag-bg);
  border: 1px solid var(--border);
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── PHONE MOCK ── */
.hero-device {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mock {
  width: 100%;
  max-width: 260px;
  background-color: var(--phone-bg);
  border: 1.5px solid var(--phone-border);
  border-radius: 32px;
  padding: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  position: relative;
}

.phone-screen {
  aspect-ratio: 1080 / 2340;
  background-color: var(--screen-bg);
  border-radius: 22px;
  overflow: hidden;
  position: relative;
}

.phone-screen img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Hero phone internal UI */
.screen-ui {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  gap: 0.75rem;
  background-color: #0a0a0a;
}

.screen-time {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  color: #e8e8e8;
  font-weight: 700;
}

.screen-row {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  justify-content: center;
}

.screen-btn {
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 4px;
  color: #aaaaaa;
  font-size: 1rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
}

.screen-btn--lg {
  width: 64px;
  height: 64px;
  font-size: 1.5rem;
}

.screen-btn--accent {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── PRINCIPLES ── */
.principles {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border);
  background-color: var(--surface);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-sm);
}

.principle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: var(--space-sm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
  text-align: center;
}

.principle:hover { border-color: var(--accent); }

.principle-icon {
  font-size: 1.2rem;
  color: var(--accent);
}

.principle-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── SECTION HEADER ── */
.section-header {
  margin-bottom: var(--space-lg);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.section-sub {
  font-size: 1rem;
  color: var(--text-faint);
  margin-top: 0.5rem;
}

/* ── FEATURES ── */
.features {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature-card {
  padding: var(--space-md);
  background-color: var(--surface);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition);
}

.feature-card:hover { background-color: var(--surface-2); }

.feature-card:nth-child(3n) { border-right: none; }
.feature-card:nth-last-child(-n+3) { border-bottom: none; }

.feature-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.feature-card h3 {
  color: var(--text);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ── MODES ── */
.modes {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
}

.modes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.mode-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  position: relative;
}

.mode-card--beta {
  border-color: var(--accent);
}

.mode-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
  margin-bottom: 0.75rem;
}

.mode-badge--beta {
  color: var(--accent);
  background-color: rgba(214,40,40,0.1);
  border-color: rgba(214,40,40,0.3);
}

.mode-beta-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  margin-bottom: 0.75rem;
  margin-top: -0.25rem;
}

.mode-card h3 {
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.mode-desc {
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.mode-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: var(--space-md);
}

.mode-list li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
}

.mode-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-faint);
}

.mode-tech {
  border-top: 1px solid var(--border);
  padding-top: var(--space-sm);
}

.mode-tech-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.mode-tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.mode-tech-list span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent);
  background-color: rgba(214,40,40,0.08);
  border: 1px solid rgba(214,40,40,0.2);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

/* ── SCREENSHOTS ── */
.screenshots {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
}

.screen-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-xl);
}

.screen-block--reverse .screen-info { order: 2; }
.screen-block--reverse .phone-mock,
.screen-block--reverse .carousel { order: 1; }

.screen-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.screen-info h3 { color: var(--text); }
.screen-info p { font-size: 0.95rem; }

.screen-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

/* SCREEN PLACEHOLDER (shown when no image) */
.screen-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
  gap: 0.75rem;
  background-color: #080808;
  color: #e8e8e8;
}

/* Hide placeholder when image loads */
.phone-screen img + .screen-placeholder { display: none; }
.phone-screen img[src=""] + .screen-placeholder,
.phone-screen img:not([src]) + .screen-placeholder { display: flex; }

/* Since we might not have real images, always show placeholder */
.phone-screen .screen-placeholder {
  display: flex;
}

.sp-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #888;
}

.sp-name {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: #e8e8e8;
}

.sp-sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #666;
}

.sp-actions {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  justify-content: center;
}

.sp-row {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
}

.sp-btn {
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 3px;
  color: #aaa;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sp-btn--green { background: rgba(0,200,100,0.15); border-color: rgba(0,200,100,0.4); color: #00c864; }
.sp-btn--red { background: rgba(214,40,40,0.15); border-color: rgba(214,40,40,0.4); color: var(--accent); }
.sp-btn--accent { background: var(--accent); border-color: var(--accent); color: #fff; font-size: 1rem; }
.sp-btn--mute { background: rgba(255,255,255,0.05); }
.sp-btn--xl { width: 52px; height: 52px; font-size: 1.2rem; }

.sp-time {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: #e8e8e8;
}

.sp-vol {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
}

.sp-bar {
  width: 60%;
  height: 6px;
  background: #1a1a1a;
  border-radius: 3px;
  overflow: hidden;
}

.sp-bar-fill {
  height: 100%;
  width: 65%;
  background: var(--accent);
  border-radius: 3px;
}

/* ── CAROUSEL ── */
.carousel {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.carousel-track {
  display: flex;
  transition: transform 300ms ease;
}

.carousel-slide {
  flex: 0 0 100%;
  display: flex;
  justify-content: center;
}

.carousel-slide .phone-mock {
  max-width: 240px;
  width: 100%;
}

.carousel-controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.carousel-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition), border-color var(--transition);
}

.carousel-btn:hover { color: var(--text); border-color: var(--text-muted); }

.carousel-dots {
  display: flex;
  gap: 0.4rem;
}

.carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background-color var(--transition);
}

.carousel-dot.active,
.carousel-dot[aria-selected="true"] {
  background-color: var(--accent);
}

/* ── DOWNLOAD SECTION ── */
.download-section {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
}

.download-inner {
  max-width: 640px;
}

.download-inner h2 { color: var(--text); margin-bottom: 1rem; }
.download-inner p { font-size: 1rem; margin-bottom: var(--space-md); }

.download-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: 1rem;
}

.download-note {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── FOOTER ── */
.site-footer {
  border-top: 1px solid var(--border);
  background-color: var(--surface);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 2fr;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-md);
}

.footer-desc {
  font-size: 0.85rem;
  margin-top: 0.75rem;
  color: var(--text-faint);
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-top: 0.25rem;
}

.footer-nav a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.footer-nav a:hover { color: var(--text); text-decoration: none; }

.footer-disclaimer {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-disclaimer p {
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--text-faint);
}

.footer-disclaimer a {
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── MODAL ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0,0,0,0.7);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  backdrop-filter: blur(4px);
}

.modal-overlay[hidden] { display: none; }

.modal-box {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  max-width: 480px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.modal-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}

.modal-list li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 1rem;
  position: relative;
}

.modal-list li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.modal-actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 400ms ease, transform 400ms ease;
}

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

/* ── SPEC / FAQ PAGE ── */
.page-hero {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border);
}

.page-hero-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.page-hero h1 {
  color: var(--text);
  margin-bottom: 0.75rem;
}

.page-hero p {
  font-size: 1rem;
  max-width: 640px;
}

.page-content {
  padding: var(--space-xl) 0;
  max-width: 800px;
}

.page-content h2 {
  font-size: 1.5rem;
  color: var(--text);
  margin: var(--space-lg) 0 var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}

.page-content h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }

.page-content h3 {
  font-size: 1.1rem;
  color: var(--text);
  margin: var(--space-md) 0 0.5rem;
}

.page-content p {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.page-content ul {
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-content ul li {
  font-size: 0.95rem;
  color: var(--text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.page-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

/* Mermaid diagrams */
.mermaid-wrap {
  margin: var(--space-md) 0;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  overflow-x: auto;
}

.diagram-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-bottom: 0.75rem;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: var(--space-md);
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text);
  list-style: none;
  transition: background-color var(--transition);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  gap: 1rem;
}

.faq-question:hover { background-color: var(--surface-2); }
.faq-question::-webkit-details-marker { display: none; }

.faq-arrow {
  font-size: 0.8rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  flex-shrink: 0;
  transition: transform var(--transition);
}

details[open] .faq-arrow { transform: rotate(90deg); }

.faq-answer {
  padding: 0 var(--space-md) var(--space-sm);
  border-top: 1px solid var(--border);
}

.faq-answer p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 0.75rem;
}

.faq-answer ul {
  margin-top: 0.5rem;
  margin-bottom: 0;
}

/* ── STATIC SCREENS ── */
.static-screens {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.static-screens .phone-mock {
  max-width: 260px;
  margin: 0 auto;
}

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .principles-grid { grid-template-columns: repeat(3, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid .feature-card:nth-child(3n) { border-right: 1px solid var(--border); }
  .features-grid .feature-card:nth-child(2n) { border-right: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-disclaimer { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-device { display: none; }
  .modes-grid { grid-template-columns: 1fr; }
  .screen-block { grid-template-columns: 1fr; }
  .screen-block--reverse .screen-info { order: 0; }
  .screen-block--reverse .phone-mock { order: 0; }
  .site-nav { display: none; }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .features-grid .feature-card { border-right: none !important; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-md); }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; align-items: flex-start; }
  .download-cta { flex-direction: column; }
  .modal-actions { flex-direction: column; }
  .modal-actions .btn { width: 100%; justify-content: center; }
  .header-actions .cta-download { display: none; }
}