:root {
  --bg: #05070a;
  --panel: #0d1017;
  --panel-2: #12161f;
  --border: #232937;
  --border-soft: #1a1f2a;
  --text: #e6eaf2;
  --text-dim: #8b93a5;
  --steel: #aab2c5;
  --accent: #2f8fff;
  --accent-glow: rgba(47, 143, 255, 0.35);
  --accent-dim: #1c5fb0;
  --danger: #ff5c5c;
  --danger-bg: #2a1216;
  --warn: #f0c26b;
  --radius: 12px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

a { color: inherit; }

button {
  font-family: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

svg { color: inherit; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.i-check use, #i-check ~ use {}

h1, h2, h3 { line-height: 1.2; margin: 0; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border-radius: var(--radius);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: filter 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-dim));
  color: #04101f;
}
.btn-primary:hover { filter: brightness(1.1); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn-small { padding: 0.5rem 1rem; font-size: 0.85rem; }
.btn-large { padding: 0.85rem 1.6rem; font-size: 1rem; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 7, 10, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.9rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
}

.brand-mark { width: 34px; height: 34px; }

.brand-word {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--steel);
}
.brand-word em { color: var(--accent); font-style: normal; }

.site-nav {
  display: flex;
  gap: 1.75rem;
  flex: 1;
  justify-content: center;
}

.site-nav a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.site-nav a:hover { color: var(--text); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 6rem 0 5rem;
  overflow: hidden;
  text-align: center;
}

.hero-glow {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 700px;
  background: radial-gradient(circle at 50% 0%, rgba(47, 143, 255, 0.14), transparent 65%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-ring {
  position: absolute;
  top: -10px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0%, var(--accent-glow) 12%, transparent 26%);
  filter: blur(4px);
  opacity: 0.7;
  animation: spin 8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.hero-logo {
  position: relative;
  width: 150px;
  height: auto;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 0 40px var(--accent-glow));
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 700;
  max-width: 16ch;
}

.accent-text { color: var(--accent); }

.hero-lead {
  max-width: 620px;
  color: var(--text-dim);
  font-size: 1.05rem;
  margin: 1.5rem 0 2.2rem;
}
.hero-lead strong { color: var(--text); }

.hero-ctas {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-meta {
  margin-top: 1.5rem;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ---------- Sections ---------- */

.section { padding: 5.5rem 0; }
.section.alt { background: var(--panel); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  text-align: center;
  font-weight: 700;
}

.section-lead {
  text-align: center;
  color: var(--text-dim);
  max-width: 620px;
  margin: 0.85rem auto 0;
}

/* ---------- App mock ---------- */

.app-mock {
  margin: 3rem auto 0;
  max-width: 920px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(47, 143, 255, 0.06);
}

.app-mock-titlebar {
  background: #0a0d13;
  padding: 0.6rem 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 1px solid var(--border-soft);
}

.app-mock-titlebar .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #2a2f3b;
}

.app-mock-title {
  margin-left: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.app-mock-body { display: flex; height: 420px; background: var(--panel); }

.mock-sidebar {
  width: 210px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border-soft);
  padding: 1rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.mock-brand { display: flex; justify-content: center; margin-bottom: 0.6rem; }
.mock-brand img { width: 70px; }

.mock-section-label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin: 0.7rem 0 0.2rem;
}

.mock-nav-item {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
  padding: 0.4rem 0.55rem;
  border-radius: 7px;
  font-size: 0.78rem;
  color: var(--text-dim);
  text-align: left;
  transition: background 0.12s ease, color 0.12s ease;
}
.mni-label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
  flex: 1 1 auto;
  overflow: hidden;
}
.mni-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mock-nav-item:hover { background: var(--panel-2); color: var(--text); }
.mock-nav-item.active { background: rgba(47, 143, 255, 0.1); color: var(--accent); }

.mock-badge {
  flex-shrink: 0;
  white-space: nowrap;
  font-size: 0.55rem;
  padding: 0.1rem 0.4rem;
  border-radius: 20px;
  background: var(--border-soft);
  color: var(--steel);
  text-transform: uppercase;
}
.mock-badge.protected { background: rgba(47, 143, 255, 0.15); color: #8fc3ff; }
.mock-badge.ultra { background: rgba(255, 92, 92, 0.15); color: #ff9d9d; }

.mock-spacer { flex: 1; }

.mock-lock-btn {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  justify-content: center;
  width: 100%;
  padding: 0.5rem;
  border-radius: 8px;
  border: none;
  background: var(--danger-bg);
  color: #ff9d9d;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}
.mock-lock-btn:hover { background: rgba(255, 92, 92, 0.22); }

.mock-content { flex: 1; padding: 1rem 1.2rem; overflow-y: auto; }

.mock-toolbar { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }

.mock-btn, .mock-chip {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-family: inherit;
  padding: 0.4rem 0.7rem;
  border-radius: 7px;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  color: var(--text-dim);
  cursor: pointer;
}
.mock-btn.primary { background: linear-gradient(180deg, var(--accent), var(--accent-dim)); color: #04101f; border: none; font-weight: 600; }
.mock-btn.disabled { opacity: 0.45; cursor: not-allowed; }

.mock-btn.blocked { position: relative; cursor: not-allowed; }
.blocked-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  margin-left: 0.15rem;
  color: #ff9d9d;
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 0.12s ease, transform 0.12s ease;
}
.mock-btn.blocked:hover .blocked-mark { opacity: 1; transform: none; }
#demo-import-btn.shake { animation: sim-shake 0.4s ease; }

.demo-import-hint {
  align-items: center;
  gap: 0.6rem;
  background: var(--danger-bg);
  border: 1px solid rgba(255, 92, 92, 0.3);
  border-radius: 9px;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.8rem;
  font-size: 0.78rem;
  color: #ff9d9d;
}
/* Same [hidden]-vs-class-selector specificity trap as .demo-lock-overlay
   and .demo-viewer-backdrop below: display must live in :not([hidden]). */
.demo-import-hint:not([hidden]) {
  display: flex;
  animation: demo-hint-in 0.2s ease;
}
.demo-import-hint svg { flex-shrink: 0; }
.demo-import-hint span { flex: 1; line-height: 1.4; }
.demo-import-hint-cta {
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  background: rgba(255, 92, 92, 0.15);
  color: #ff9d9d;
  white-space: nowrap;
}
.demo-import-hint-cta:hover { background: rgba(255, 92, 92, 0.28); }
@keyframes demo-hint-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

.mock-grid.drag-blocked {
  outline: 2px dashed #ff9d9d;
  outline-offset: 4px;
  border-radius: 10px;
}

.mock-chip.toggle { cursor: pointer; user-select: none; }
.mock-chip.toggle input { display: none; }
.mock-chip.toggle:has(input:checked) { border-color: var(--accent); color: var(--accent); background: rgba(47, 143, 255, 0.08); }

.mock-search-input,
.mock-sort {
  font-size: 0.72rem;
  padding: 0.4rem 0.7rem;
  border-radius: 7px;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  color: var(--text);
}
.mock-search-input { flex: 1; min-width: 120px; }
.mock-search-input:focus, .mock-sort:focus { outline: none; border-color: var(--accent); }

.mock-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
}

.mock-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.82rem;
  padding: 2rem 1rem;
}

.mock-tile-real {
  position: relative;
  aspect-ratio: 1;
  border-radius: 9px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  background-color: var(--panel-2);
  background-size: cover;
  background-position: center;
  cursor: pointer;
  transition: border-color 0.12s ease, transform 0.12s ease, outline-color 0.12s ease;
}
.mock-tile-real:hover { border-color: var(--accent-dim); transform: translateY(-2px); }
.mock-tile-real:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Demo: selection & bulk actions ---------- */

.mock-btn.active { border-color: var(--accent); color: var(--accent); background: rgba(47, 143, 255, 0.08); }

.tile-select-box {
  position: absolute;
  top: 0.4rem;
  left: 0.4rem;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  border: 1.5px solid rgba(255, 255, 255, 0.65);
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 2;
}
.mock-tile-real.selected .tile-select-box { background: var(--accent); border-color: var(--accent); }
.mock-tile-real.selected { outline: 2px solid var(--accent); outline-offset: -2px; }

.tile-quick-actions {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  display: flex;
  gap: 0.3rem;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity 0.12s ease, transform 0.12s ease;
  z-index: 2;
}
.mock-tile-real:hover .tile-quick-actions,
.mock-tile-real:focus-visible .tile-quick-actions { opacity: 1; transform: none; }

.tile-action-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tile-action-btn:hover { background: rgba(0, 0, 0, 0.8); }
.tile-action-btn.active { color: var(--warn); }
.tile-action-btn.danger:hover { color: #ff9d9d; }

.demo-bulk-bar {
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: rgba(47, 143, 255, 0.08);
  border: 1px solid rgba(47, 143, 255, 0.25);
  border-radius: 9px;
  padding: 0.55rem 0.8rem;
  margin-bottom: 0.8rem;
  font-size: 0.78rem;
  color: var(--accent);
}
/* Same [hidden]-vs-class-selector specificity trap as .demo-lock-overlay. */
.demo-bulk-bar:not([hidden]) { display: flex; }
.demo-bulk-actions { display: flex; gap: 0.4rem; }
.demo-bulk-actions button {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-family: inherit;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  color: var(--text);
  cursor: pointer;
}
.demo-bulk-actions button:hover { border-color: var(--accent); }
#demo-bulk-trash:hover { color: #ff9d9d; border-color: var(--danger); }

/* ---------- Demo: lock overlay ---------- */

.app-mock { position: relative; }
.app-mock-body { transition: filter 0.5s ease; }
.app-mock-body.blurring { filter: blur(6px); pointer-events: none; }

.demo-lock-overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(3, 4, 8, 0.82);
}
/* [hidden] has the same specificity as a class selector, so the plain
   .demo-lock-overlay rule above must NOT set display, or it wins the
   cascade over the browser's default `[hidden] { display: none }` and
   the lock screen stays visible even while hidden. */
.demo-lock-overlay:not([hidden]) {
  display: flex;
  animation: demo-hint-in 0.25s ease;
}

.demo-lock-card {
  width: min(300px, 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.55rem;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.6rem 1.4rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.demo-lock-logo { width: 48px; margin-bottom: 0.2rem; }
.demo-lock-card h4 { font-size: 1rem; margin: 0; color: var(--text); }

.demo-lock-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  font-size: 0.76rem;
  font-weight: 600;
  color: #ff9d9d;
}

.demo-lock-field {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.3rem;
  margin-top: 0.3rem;
}
.demo-lock-field span {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}
.demo-lock-field input {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 7px;
  padding: 0.55rem 0.7rem;
  color: var(--text);
  font-size: 0.85rem;
  cursor: not-allowed;
}

.demo-unlock-btn { width: 100%; justify-content: center; font-size: 0.8rem; margin-top: 0.5rem; }

.demo-lock-note { font-size: 0.7rem; color: var(--text-dim); line-height: 1.4; margin-top: 0.15rem; }

.mock-tile-real.video { background: linear-gradient(160deg, #171c26, #0c0f15); }

.mock-tile-video-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
}

.mock-tile-overlay-real {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.4rem 0.5rem;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.85), transparent 70%);
  font-size: 0.68rem;
  color: #fff;
  text-align: left;
}
.mock-tile-top-real { display: flex; align-items: center; justify-content: space-between; color: var(--warn); }
.mock-tile-stars-real { display: flex; gap: 1px; }
.mock-tile-name-real {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mock-caption {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 1.25rem;
}

.demo-reset {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.68rem;
  color: var(--text-dim);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
}
.demo-reset:hover { background: var(--panel-2); color: var(--text); }

/* ---------- Demo viewer ---------- */

.demo-viewer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(2, 3, 5, 0.88);
  align-items: center;
  justify-content: center;
  z-index: 60;
  padding: 1.5rem;
}
/* [hidden] has the same specificity as a class selector, so the plain
   .demo-viewer-backdrop rule above must NOT set display, or it wins the
   cascade over the browser's default `[hidden] { display: none }` and
   the modal stays visible even while hidden. */
.demo-viewer-backdrop:not([hidden]) {
  display: flex;
}

.demo-viewer-content {
  width: min(980px, 100%);
  height: min(640px, 90vh);
  display: flex;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.demo-viewer-media {
  position: relative;
  flex: 1;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.demo-viewer-media-inner { display: contents; }
.demo-viewer-media-inner img { max-width: 100%; max-height: 100%; }

.demo-video-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-dim);
  font-size: 0.82rem;
  max-width: 260px;
  text-align: center;
}

.demo-nav, .demo-close {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 0.55rem;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-soft);
  color: var(--text);
  opacity: 0.6;
}
.demo-nav:hover { opacity: 1; border-color: var(--accent); }
.demo-nav-prev { left: 0.75rem; }
.demo-nav-next { right: 0.75rem; }
.demo-close { top: 0.75rem; right: 0.75rem; transform: none; }
.demo-close:hover { opacity: 1; border-color: var(--danger); }

.demo-viewer-toolbar {
  position: absolute;
  bottom: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-soft);
  border-radius: 20px;
  padding: 0.3rem 0.5rem;
  z-index: 3;
}
.demo-zoom-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}
.demo-zoom-btn:hover { background: rgba(255, 255, 255, 0.1); }
.demo-zoom-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.demo-zoom-level { font-size: 0.7rem; color: var(--text-dim); min-width: 2.6em; text-align: center; }

.demo-viewer-media-inner img { transition: transform 0.06s linear; touch-action: none; }

.demo-viewer-panel {
  width: 280px;
  flex-shrink: 0;
  border-left: 1px solid var(--border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.demo-viewer-header { display: flex; align-items: center; gap: 0.5rem; }

.demo-name-input {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 1px solid transparent;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  padding: 0.2rem 0;
  min-width: 0;
}
.demo-name-input:hover, .demo-name-input:focus { border-bottom-color: var(--border-soft); outline: none; }
.demo-name-input:focus { border-bottom-color: var(--accent); }

.demo-fav-btn { color: var(--text-dim); padding: 0.3rem; flex-shrink: 0; }
.demo-fav-btn.active { color: var(--warn); }

.demo-stars { display: flex; gap: 0.2rem; color: var(--warn); }
.demo-stars button { padding: 0.1rem; }

.demo-tag-section { display: flex; flex-direction: column; gap: 0.5rem; }
.field-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.demo-tag-chips { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.demo-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(47, 143, 255, 0.12);
  border: 1px solid rgba(47, 143, 255, 0.3);
  color: #8fc3ff;
  border-radius: 20px;
  padding: 0.2rem 0.5rem;
  font-size: 0.78rem;
}
.demo-tag-chip button { font-size: 0.7rem; line-height: 1; }

.demo-tag-input-row { position: relative; }
.demo-tag-input-row input {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 7px;
  padding: 0.5rem 0.65rem;
  color: var(--text);
  font-size: 0.85rem;
}
.demo-tag-input-row input:focus { outline: none; border-color: var(--accent); }

.demo-tag-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 0.25rem;
  padding: 0.25rem;
  list-style: none;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  z-index: 5;
}
.demo-tag-suggestions button {
  width: 100%;
  text-align: left;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  font-size: 0.82rem;
}
.demo-tag-suggestions button:hover { background: var(--panel); }

.demo-trash-notice {
  background: var(--danger-bg);
  border: 1px solid rgba(255, 92, 92, 0.3);
  border-radius: 9px;
  padding: 0.7rem 0.8rem;
  font-size: 0.8rem;
  color: #ff9d9d;
}
.demo-trash-notice p { display: flex; align-items: center; gap: 0.4rem; margin: 0 0 0.5rem; font-weight: 600; }
.demo-trash-actions { display: flex; gap: 0.4rem; }
.demo-trash-actions button {
  font-size: 0.72rem;
  font-family: inherit;
  padding: 0.35rem 0.6rem;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 92, 92, 0.3);
  color: #fff;
  cursor: pointer;
}
.demo-trash-actions button:hover { background: rgba(255, 92, 92, 0.2); }

.demo-no-download {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* ---------- Feature grid ---------- */

.feature-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.1rem;
}

.feature-card {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.feature-card svg { color: var(--accent); margin-bottom: 0.7rem; }
.feature-card h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-dim); font-size: 0.88rem; margin: 0; }

/* ---------- Security ---------- */

.security-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.security-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.security-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(47, 143, 255, 0.1);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}

.security-card h3 { font-size: 1.02rem; margin-bottom: 0.55rem; }
.security-card p { color: var(--text-dim); font-size: 0.9rem; margin: 0; }
.security-card strong { color: var(--text); }

/* ---------- Confidentiality levels ---------- */

.levels-block {
  margin-top: 2.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.levels-head { text-align: center; margin-bottom: 1.5rem; }
.levels-head h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.levels-head p { color: var(--text-dim); font-size: 0.88rem; margin: 0 auto; max-width: 560px; }

.levels-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.level-item {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.level-item p { color: var(--text-dim); font-size: 0.83rem; line-height: 1.55; margin: 0; }
.level-item strong { color: var(--text); }

.level-badge {
  align-self: flex-start;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  background: var(--border-soft);
  color: var(--steel);
}
.level-badge.normal { background: rgba(126, 226, 184, 0.15); color: #7ee2b8; }
.level-badge.protected { background: rgba(47, 143, 255, 0.15); color: #8fc3ff; }
.level-badge.private { background: rgba(240, 194, 107, 0.15); color: #f0c26b; }
.level-badge.ultra { background: rgba(255, 92, 92, 0.15); color: #ff9d9d; }

@media (max-width: 860px) {
  .levels-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .levels-grid { grid-template-columns: 1fr; }
}

/* ---------- USB unplug simulator ---------- */

.sim-card {
  margin-top: 2.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.sim-intro { text-align: center; margin-bottom: 1.5rem; }
.sim-intro h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }
.sim-intro p { color: var(--text-dim); font-size: 0.88rem; margin: 0; max-width: 520px; margin: 0 auto; }

.sim-body {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

.sim-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  text-align: center;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
}

.sim-usb-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(47, 143, 255, 0.1);
  color: var(--accent);
  transition: background 0.25s ease, color 0.25s ease;
}
.sim-usb-icon.off {
  background: rgba(255, 92, 92, 0.1);
  color: var(--danger);
}
.sim-usb-icon.shake { animation: sim-shake 0.4s ease; }
@keyframes sim-shake {
  20%, 60% { transform: translateX(-4px) rotate(-3deg); }
  40%, 80% { transform: translateX(4px) rotate(3deg); }
}

.sim-status { font-size: 0.82rem; color: var(--text-dim); min-height: 2.4em; }
.sim-status.locked { color: #ff9d9d; }

.sim-btn { width: 100%; justify-content: center; font-size: 0.85rem; }
.sim-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.sim-console {
  background: #030405;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.sim-console-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.75rem;
  background: #0a0d13;
  border-bottom: 1px solid var(--border-soft);
}
.sim-dot { width: 9px; height: 9px; border-radius: 50%; background: #2a2f3b; }
.sim-dot.r { background: #ff5c5c; }
.sim-dot.y { background: #f0c26b; }
.sim-dot.g { background: #22c58b; }
.sim-console-title { margin-left: 0.5rem; font-size: 0.7rem; color: var(--text-dim); font-family: "Cascadia Code", Consolas, monospace; }

.sim-console-body {
  flex: 1;
  margin: 0;
  padding: 0.9rem 1rem;
  min-height: 220px;
  max-height: 260px;
  overflow-y: auto;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.7;
  color: #7c8698;
  white-space: pre-wrap;
}

.sim-line { color: #b6bdcb; }
.sim-line.info { color: #8fc3ff; }
.sim-line.warn { color: var(--warn); }
.sim-line.ok { color: #7ee2b8; }
.sim-line.ok-strong { color: #7ee2b8; font-weight: 700; }

@media (max-width: 640px) {
  .sim-body { grid-template-columns: 1fr; }
}

.no-recovery-box {
  margin-top: 2.5rem;
  display: flex;
  gap: 1.1rem;
  background: rgba(255, 92, 92, 0.06);
  border: 1px solid rgba(255, 92, 92, 0.25);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.no-recovery-box svg { color: var(--danger); flex-shrink: 0; margin-top: 0.2rem; }
.no-recovery-box h3 { font-size: 1.02rem; margin-bottom: 0.5rem; color: #ff9d9d; }
.no-recovery-box p { margin: 0; color: var(--text-dim); font-size: 0.9rem; }
.no-recovery-box strong { color: var(--text); }

.honesty-box {
  margin-top: 1.25rem;
  background: rgba(240, 194, 107, 0.06);
  border: 1px solid rgba(240, 194, 107, 0.22);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.honesty-box h3 { font-size: 1rem; color: var(--warn); margin-bottom: 0.75rem; }
.honesty-box ul { margin: 0 0 1rem; padding-left: 1.2rem; color: var(--text-dim); font-size: 0.88rem; }
.honesty-box li { margin-bottom: 0.4rem; }
.honesty-note { margin: 0; font-size: 0.85rem; color: var(--text-dim); font-style: italic; }

/* ---------- Steps ---------- */

.steps {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.step { text-align: center; }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(47, 143, 255, 0.1);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 0.85rem;
}
.step h3 { font-size: 0.98rem; margin-bottom: 0.4rem; }
.step p { color: var(--text-dim); font-size: 0.86rem; margin: 0; }

/* ---------- Download ---------- */

.download-section { text-align: center; }

.download-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2.5rem 2rem;
}

.download-logo { width: 72px; margin-bottom: 1rem; }
.download-card h2 { font-size: 1.4rem; margin-bottom: 0.5rem; }
.download-card > p { color: var(--text-dim); font-size: 0.88rem; margin-bottom: 1.5rem; }

.checksum { margin-top: 1.25rem; text-align: left; }
.checksum summary { cursor: pointer; font-size: 0.78rem; color: var(--text-dim); }
.checksum code {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.72rem;
  word-break: break-all;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 0.6rem 0.7rem;
  color: var(--steel);
}

/* ---------- FAQ ---------- */

.faq-list { margin-top: 2.5rem; display: flex; flex-direction: column; gap: 0.6rem; max-width: 760px; margin-left: auto; margin-right: auto; }

.faq-item {
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "+";
  display: inline-block;
  width: 1.1em;
  color: var(--accent);
  font-weight: 700;
}
.faq-item[open] summary::before { content: "–"; }
.faq-item p { color: var(--text-dim); font-size: 0.86rem; margin: 0.7rem 0 0.2rem; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 2.5rem 0;
}
.footer-inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.footer-brand { margin-bottom: 0.5rem; }
.site-footer p { color: var(--text-dim); font-size: 0.8rem; margin: 0; }
.footer-contact a { color: var(--accent); text-decoration: none; }
.footer-contact a:hover { text-decoration: underline; }
.footer-copy { color: #4a5164; }

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
  .site-nav { display: none; }
  .app-mock-body { flex-direction: column; height: auto; max-height: 640px; }
  .mock-sidebar { width: 100%; flex-direction: row; flex-wrap: wrap; }
  .mock-spacer { display: none; }
  .mock-lock-btn { display: none; }
  .mock-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-viewer-content { flex-direction: column; height: 92vh; }
  .demo-viewer-panel { width: 100%; border-left: none; border-top: 1px solid var(--border); }
  .demo-nav-prev { left: 0.4rem; }
  .demo-nav-next { right: 0.4rem; }
}