/* ── Design tokens (from Theme.swift) ─────────────────────────── */
:root {
  --bg: #191919;
  --card-bg: #212121;
  --input-bg: #0F0F0F;
  --text-hero: #F2F2F2;
  --text-primary: #E0E0E0;
  --text-body: #A6A6A6;
  --text-caption: #6B6B6B;
  --text-placeholder: #666666;
  --brand-blue: #3FA9F5;
  --brand-pink: #F93F86;
  --border: #2D2D2D;
  --radius: 4px;
  --btn-bg: #2D2D2D;
  --btn-bg-hover: #3D3D3D;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.6;
  overflow: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Page section (full-page slides) ─────────────────────────── */
.page-section {
  min-height: 100vh;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 40px;
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
}

/* ── Section header (uppercase tracked) ───────────────────────── */
.section-header {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-caption);
  text-align: center;
  margin-bottom: 48px;
}

/* ── Fixed logo ───────────────────────────────────────────────── */
.fixed-logo {
  position: fixed;
  top: 20px;
  left: 24px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.fixed-logo.visible {
  opacity: 1;
}
.fixed-logo-img {
  width: 28px;
  height: 28px;
  border-radius: 4px;
}

/* ── Language picker ─────────────────────────────────────────── */
.lang-picker {
  position: fixed;
  bottom: 56px;
  left: 40px;
  z-index: 101;
}
.lang-picker-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--btn-bg);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 11px;
  font-weight: 500;
  padding: 6px 10px;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s ease;
}
.lang-picker-btn:hover {
  background: var(--btn-bg-hover);
}
.lang-panel {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  direction: ltr;
  z-index: 200;
  background: var(--card-bg);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
  gap: 24px;
  max-height: 80vh;
  overflow-y: auto;
}
.lang-panel.open {
  display: flex;
}
.lang-panel-col {
  min-width: 160px;
}
.lang-group-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-caption);
  padding: 0 8px 6px;
  margin-bottom: 2px;
  border-bottom: 0.5px solid var(--border);
  pointer-events: none;
}
.lang-group-label:not(:first-child) {
  margin-top: 16px;
}
.lang-option {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text-body);
  font-size: 13px;
  font-family: inherit;
  padding: 5px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.lang-option:hover {
  background: var(--btn-bg-hover);
  color: var(--text-primary);
}
.lang-option.active {
  color: var(--brand-blue);
}

/* RTL support */
[dir="rtl"] .side-nav {
  left: auto;
  right: 24px;
}
[dir="rtl"] .fixed-logo {
  left: auto;
  right: 24px;
}
[dir="rtl"] .fixed-download {
  right: auto;
  left: 24px;
}

/* ── Fixed download button (top-right) ────────────────────────── */
.fixed-download {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 100;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  background: var(--btn-bg);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 16px;
  opacity: 0;
  transition: opacity 0.4s ease, background 0.2s ease;
  pointer-events: none;
}
.fixed-download.visible {
  opacity: 1;
  pointer-events: auto;
}
.fixed-download:hover {
  background: var(--btn-bg-hover);
}

/* ── Side navigation ──────────────────────────────────────────── */
.side-nav {
  position: fixed;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 14px;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.side-nav.visible {
  opacity: 1;
}
.side-nav-item {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-placeholder);
  cursor: pointer;
  transition: color 0.3s ease;
}
.side-nav-item.active {
  color: var(--text-hero);
}
.side-nav-item:hover {
  color: var(--text-body);
}

/* ── Scroll arrows ────────────────────────────────────────────── */
.scroll-arrow {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-caption);
  opacity: 0.4;
  animation: bounce 2s ease-in-out infinite;
  cursor: pointer;
  transition: opacity 0.4s ease;
  z-index: 10;
}
.scroll-arrow.hidden { opacity: 0; pointer-events: none; }

.scroll-arrow-up {
  bottom: auto;
  top: 32px;
  animation: bounce-up 2s ease-in-out infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}
@keyframes bounce-up {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(-8px); }
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  justify-content: flex-start;
  padding-top: 10vh;
  background: var(--bg);
}
@media (max-height: 750px) {
  .hero { padding-top: 4vh; }
  .hero-icon { width: 40px; height: 40px; margin-bottom: 10px; }
  .hero-subhead { margin-bottom: 20px; }
  .try-pills { margin-top: 8px; margin-bottom: 12px; }
}

.hero-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 16px;
}

.hero-headline {
  font-size: 28px;
  font-weight: 300;
  color: var(--text-caption);
  margin-bottom: 6px;
  line-height: 1.2;
}

.hero-subhead {
  font-size: 13px;
  font-weight: 300;
  color: var(--text-placeholder);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.4;
}

.btn-primary {
  display: inline-block;
  background: var(--brand-blue);
  color: var(--input-bg);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 28px;
  border-radius: var(--radius);
  transition: opacity 0.2s ease;
}
.btn-primary:hover { opacity: 0.88; }

.hero-meta {
  font-size: 11px;
  color: var(--text-caption);
  margin-top: 16px;
  letter-spacing: 0.3px;
}

/* Mobile-only: share button + desktop notice (hidden on desktop) */
.hero-share, .hero-mobile-notice { display: none; }
.hero-share {
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.hero-mobile-notice {
  font-size: 11px;
  color: var(--text-caption);
  margin-top: 8px;
  letter-spacing: 0.3px;
}

/* ── Hero counter (inside hero) ──────────────────────────────── */
.hero-counter {
  margin-top: 20px;
  text-align: center;
}
.counter-number {
  font-size: 32px;
  font-weight: 300;
  color: var(--text-hero);
  font-variant-numeric: tabular-nums;
}
.counter-label {
  font-size: 13px;
  font-weight: 300;
  color: var(--text-caption);
  margin-left: 10px;
}


/* ── Split-flap characters ───────────────────────────────────── */
.sf-char {
  display: inline-block;
  min-width: 0.4ch;
  text-align: center;
  position: relative;
}
.sf-char.space {
  min-width: 0.3em;
}
.sf-char.flipping {
  animation: splitFlap 0.06s ease-in-out infinite;
  filter: blur(0.8px);
}
@keyframes splitFlap {
  0%   { opacity: 1; transform: translateY(0); }
  50%  { opacity: 0.3; transform: translateY(-1px); }
  100% { opacity: 1; transform: translateY(0); }
}
.sf-char.landed {
  color: var(--text-hero);
  filter: none;
}

/* ── Try It (inside hero) ─────────────────────────────────────── */
.try-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.try-text {
  font-size: 56px;
  font-family: "Noto Sans", "Noto Sans Thai", "Noto Sans Devanagari", "Noto Sans Bengali",
    "Noto Sans Telugu", "Noto Sans Kannada", "Noto Sans Malayalam", "Noto Sans Gujarati",
    "Noto Sans Gurmukhi", "Noto Sans Myanmar", "Noto Sans Khmer", "Noto Sans Sinhala",
    "Noto Sans Tibetan", "Noto Sans Tamil", "Noto Sans Korean", "Noto Sans Arabic",
    "Noto Sans Hebrew", "Noto Sans Georgian", "Noto Sans Armenian",
    -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  color: var(--text-hero);
  min-height: 1.4em;
  text-align: center;
  white-space: nowrap;
  letter-spacing: 0.02em;
  transition: opacity 0.15s ease;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--border);
  width: 100%;
  max-width: 500px;
}

.try-prompt {
  font-size: 12px;
  color: var(--text-caption);
  letter-spacing: 0.3px;
  margin-top: 4px;
}

.try-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  max-width: 800px;
  margin-top: 16px;
  margin-bottom: 24px;
  padding: 0 16px;
}

.try-pill {
  font-size: 10px;
  color: var(--text-body);
  background: var(--card-bg);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 10px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.try-pill:hover {
  border-color: var(--text-caption);
  color: var(--text-primary);
}
.try-pill.active {
  border-color: var(--brand-blue);
  color: var(--brand-blue);
}
/* Nudge — shimmer: light sweep enters left, exits right */
.try-pill.nudge {
  overflow: hidden;
  position: relative;
  animation: nudge-color 2s ease-in-out;
}
.try-pill.nudge::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    110deg,
    transparent 0%,
    rgba(63, 169, 245, 0.15) 40%,
    rgba(63, 169, 245, 0.15) 60%,
    transparent 100%
  );
  animation: nudge-sweep 2s ease-in-out;
  pointer-events: none;
}
@keyframes nudge-sweep {
  0%   { left: -100%; }
  100% { left: 200%; }
}
@keyframes nudge-color {
  0%, 100% { color: var(--text-body); }
  30%, 70% { color: var(--brand-blue); }
}

/* ── Features ─────────────────────────────────────────────────── */
.features-section {
  max-width: 960px;
  margin: 0 auto;
  gap: 0;
  padding-top: 40px;
  padding-bottom: 40px;
}
.features-section .section-header {
  margin-bottom: 32px;
}

.features-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}
.features-grid .feature-card {
  width: calc(33.333% - 11px);
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 0.5px solid var(--border);
  padding: 24px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-icon {
  color: var(--brand-blue);
  margin-bottom: 12px;
  line-height: 1;
}
.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.feature-body {
  font-size: 12px;
  font-weight: 300;
  color: var(--text-body);
  line-height: 1.6;
}

/* ── Pricing & Download ────────────────────────────────────────── */
.download-section {
  gap: 32px;
}

/* Pricing cards */
.pricing-cards {
  display: flex;
  gap: 16px;
  max-width: 640px;
  width: 100%;
}

.pricing-card {
  flex: 1;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 0.5px solid var(--border);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  position: relative;
}
.pricing-card.featured {
  border-color: var(--brand-blue);
}

.pricing-badge {
  position: absolute;
  top: -10px;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--input-bg);
  background: var(--brand-blue);
  border-radius: var(--radius);
  padding: 2px 10px;
}

.pricing-label {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-caption);
  margin-bottom: 4px;
}

.pricing-price {
  font-size: 32px;
  font-weight: 300;
  color: var(--text-hero);
  line-height: 1;
}

.pricing-period {
  font-size: 11px;
  color: var(--text-caption);
  margin-bottom: 8px;
}

.pricing-feature {
  font-size: 12px;
  font-weight: 300;
  color: var(--text-body);
}

.pricing-savings {
  font-size: 10px;
  font-weight: 500;
  color: var(--brand-blue);
  margin-top: 2px;
}

/* Platform download cards */
.platform-downloads {
  display: flex;
  gap: 16px;
  max-width: 640px;
  width: 100%;
}

.platform-card {
  flex: 1;
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 0.5px solid var(--border);
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.platform-icon {
  color: var(--text-caption);
}

.platform-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.platform-btn {
  width: 100%;
  text-align: center;
  padding: 10px 20px;
  font-size: 13px;
}

.platform-share-btn {
  display: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.platform-sysreq {
  font-size: 10px;
  color: var(--text-caption);
  line-height: 1.4;
}

.install-note {
  font-size: 10px;
  color: var(--text-caption);
  font-style: italic;
  line-height: 1.5;
}
.install-note strong {
  color: var(--text-body);
  font-weight: 500;
}

/* ── Security modal ────────────────────────────────────────────── */
.security-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
}

.security-modal {
  background: var(--card-bg);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  max-width: 480px;
  width: 100%;
  padding: 32px;
  position: relative;
}

.security-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-caption);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
}
.security-modal-close:hover {
  color: var(--text-primary);
}

.security-modal-icon {
  margin-bottom: 16px;
}

.security-modal-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-hero);
  margin-bottom: 12px;
}

.security-modal-body {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.6;
  margin-bottom: 12px;
}

.security-modal-platform {
  background: var(--input-bg);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 8px;
}

.security-modal-platform-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.security-modal-steps {
  font-size: 12px;
  color: var(--text-body);
  line-height: 1.5;
}
.security-modal-steps strong {
  color: var(--text-primary);
}

.security-modal-download {
  display: block;
  width: 100%;
  text-align: center;
  padding: 10px 20px;
  font-size: 13px;
  margin-top: 16px;
  cursor: pointer;
}

/* ── Contact ───────────────────────────────────────────────────── */
.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 0.5px solid var(--border);
  padding: 40px;
  max-width: 520px;
  width: 100%;
}

.form-row { margin-bottom: 16px; }
.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-caption);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  background: var(--input-bg);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.2s ease;
}
.form-input:focus { border-color: var(--brand-blue); }
.form-input::placeholder { color: var(--text-placeholder); }

.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.5;
}

.contact-submit {
  width: 100%;
  text-align: center;
  padding: 12px;
  border: none;
  cursor: pointer;
  font-family: inherit;
  margin-top: 4px;
}
.contact-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.contact-status {
  display: block;
  font-size: 12px;
  margin-top: 12px;
  text-align: center;
  min-height: 1.4em;
}

/* ── Footer ────────────────────────────────────────────────────── */
.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--bg);
  border-top: 0.5px solid var(--border);
  padding: 10px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 10px;
  color: var(--text-caption);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-link {
  font-size: 10px;
  color: var(--text-caption);
  transition: color 0.2s ease;
}
.footer-link:hover { color: var(--text-body); }
.footer-copy-link {
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-copy-link:hover { color: var(--text-body); }

.footer-lang-slider {
  height: 14px;
  overflow: hidden;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
}
.footer-lang-word {
  display: inline-block;
  font-size: 10px;
  line-height: 14px;
  color: var(--text-caption);
  opacity: 0;
  transform: translateY(14px);
  transition: transform 0.4s ease, opacity 0.4s ease;
}
.footer-lang-word.visible {
  opacity: 1;
  transform: translateY(0);
}
.footer-lang-word.exit {
  opacity: 0;
  transform: translateY(-14px);
}

/* ── Responsive ────────────────────────────────────────────────── */

/* Large screens (1440p, 4K, ultrawide) */
@media (min-width: 1400px) {
  /* Hero */
  .hero-icon { width: 72px; height: 72px; margin-bottom: 20px; }
  .hero-headline { font-size: 38px; }
  .hero-subhead { font-size: 17px; max-width: 680px; }
  .try-text { font-size: 72px; max-width: 660px; }
  .try-prompt { font-size: 15px; }
  .try-pills { max-width: 1060px; gap: 8px; }
  .try-pill { font-size: 13px; padding: 6px 14px; }
  .btn-primary { font-size: 17px; padding: 14px 36px; }
  .hero-meta { font-size: 14px; }
  .counter-number { font-size: 42px; }
  .counter-label { font-size: 16px; }

  /* Section headers */
  .section-header { font-size: 11px; letter-spacing: 2px; margin-bottom: 56px; }

  /* Features */
  .features-section { max-width: 1200px; }
  .features-grid { gap: 20px; }
  .feature-card { padding: 32px; }
  .feature-icon svg { width: 30px; height: 30px; }
  .feature-title { font-size: 17px; }
  .feature-body { font-size: 15px; }

  /* Pricing */
  .pricing-cards { max-width: 840px; gap: 20px; }
  .pricing-card { padding: 36px 28px; gap: 8px; }
  .pricing-label { font-size: 11px; }
  .pricing-price { font-size: 42px; }
  .pricing-period { font-size: 14px; }
  .pricing-feature { font-size: 15px; }
  .pricing-savings { font-size: 13px; }
  .pricing-badge { font-size: 11px; padding: 3px 12px; }

  /* Platform downloads */
  .platform-downloads { max-width: 840px; gap: 20px; }
  .platform-card { padding: 36px 28px; }
  .platform-icon { width: 36px; height: 36px; }
  .platform-name { font-size: 17px; }
  .platform-btn { font-size: 16px; padding: 12px 24px; }
  .platform-sysreq { font-size: 13px; }
  .install-note { font-size: 13px; }

  /* Contact */
  .contact-card { max-width: 640px; padding: 48px; }
  .form-label { font-size: 11px; }
  .form-input { font-size: 16px; padding: 12px 16px; }
  .form-textarea { min-height: 160px; }

  /* Fixed elements */
  .fixed-logo-img { width: 36px; height: 36px; }
  .fixed-download { font-size: 13px; padding: 8px 20px; }
  .side-nav { gap: 18px; }
  .side-nav-item { font-size: 11px; }

  /* Footer */
  .site-footer { padding: 14px 60px; }
  .lang-picker { left: 60px; }
  .footer-copy { font-size: 12px; }
  .footer-link { font-size: 12px; }
  .footer-links { gap: 20px; }
}

@media (max-width: 960px) {
  .features-grid .feature-card { width: calc(50% - 8px); }
  .hero-headline { font-size: 24px; }
  .try-text { font-size: 44px; }
}

@media (max-width: 600px) {
  .lang-panel {
    flex-direction: column;
    gap: 12px;
    left: 8px;
    right: 8px;
    max-height: 60vh;
  }
  .lang-panel-col { min-width: auto; }
  /* Regular scrolling on mobile — no snapping */
  html, body { overflow: visible; height: auto; }
  body { overflow-x: hidden; }

  .page-section { padding: 40px 24px; min-height: auto; height: auto; overflow: visible; }

  .scroll-arrow { display: none; }

  .hero-download { display: none; }
  .hero-share { display: inline-block; }
  .hero-mobile-notice { display: block; }
  .hero-meta { display: none; }

  .hero-headline { font-size: 20px; }
  .hero-subhead { font-size: 12px; }

  .counter-number { font-size: 24px; }
  .counter-label { font-size: 11px; display: block; margin-left: 0; margin-top: 4px; }

  .try-text { font-size: 32px; }

  .try-pills { padding: 0 8px; }

  .features-grid .feature-card { width: 100%; }

  .pricing-cards { flex-direction: column; }
  .platform-downloads { flex-direction: column; }
  .platform-download { display: none; }
  .platform-share-btn { display: block; }
  .platform-sysreq { display: none; }
  .install-note { display: none; }
  .contact-card { padding: 24px; }
  .form-row-2col { grid-template-columns: 1fr; }

  .fixed-logo { top: 12px; left: 16px; }
  .fixed-logo-img { width: 22px; height: 22px; }

  .side-nav { display: none; }
  .fixed-download { display: none; }

  .site-footer {
    position: static;
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 24px;
  }
}