/* ============================================================================
   Veilo - Modern Mobile-First UI
   ============================================================================ */

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

:root {
  /* Color System */
  --color-primary: #1D4ED8;
  --color-primary-hover: #1E40AF;
  --color-primary-light: #EFF6FF;
  --color-secondary: #0F766E;
  --color-accent: #0F766E;
  --color-success: #10B981;        /* Emerald-500 */
  --color-danger: #EF4444;         /* Red-500 */
  --color-warning: #F59E0B;        /* Amber-500 */
  
  /* Neutrals */
  --color-text: #111827;
  --color-text-light: #4B5563;
  --color-text-lighter: #9CA3AF;   /* Gray-400 */
  --color-bg: #FFFFFF;
  --color-bg-secondary: #F8FAFC;
  --color-bg-tertiary: #F1F5F9;
  --color-border: #E5E7EB;         /* Gray-200 */
  --color-border-hover: #D1D5DB;   /* Gray-300 */
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #1D4ED8 0%, #0F766E 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: #FBFCFE;
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  width: 100%;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.site-header {
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
}

.logo:hover {
  color: var(--color-primary-hover);
}

.nav {
  display: flex;
  gap: var(--space-sm);
}

.nav a {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav a:hover {
  color: var(--color-text);
  background: var(--color-bg-secondary);
}

.nav a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

/* ============================================================================
   MAIN CONTENT
   ============================================================================ */

#app {
  flex: 1;
  padding-bottom: var(--space-3xl);
}

.view {
  min-height: calc(100vh - 200px);
}

/* ============================================================================
   HERO / HOME PAGE
   ============================================================================ */

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  min-height: auto;
  padding: clamp(48px, 9vw, 96px) var(--space-lg) var(--space-3xl);
  background:
    linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 78%),
    radial-gradient(circle at 50% 0%, rgba(29, 78, 216, 0.08), transparent 44%);
}

.hero-kicker {
  color: var(--color-secondary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: clamp(34px, 6vw, 58px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  max-width: 760px;
}

.hero-subtitle {
  font-size: clamp(17px, 2vw, 21px);
  color: #374151;
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  line-height: 1.55;
}

.hero-note {
  max-width: 620px;
  margin: var(--space-lg) auto 0;
  color: var(--color-text-light);
  font-size: 14px;
  line-height: 1.65;
}

.home-workspace {
  width: min(920px, 100%);
  margin: var(--space-2xl) auto 0;
  padding: clamp(18px, 4vw, 28px);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(15, 160, 140, 0.18);
  border-radius: var(--radius-lg);
  box-shadow: inset 0 1px 0 rgba(15, 160, 140, 0.1), var(--shadow-lg);
  text-align: left;
  position: relative;
}

.home-workspace::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, rgba(15, 160, 140, 0.9), rgba(37, 99, 235, 0.45));
}

.workspace-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.workspace-heading {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.workspace-kicker {
  color: #0F766E;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.workspace-header h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text);
}

.how-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-xl);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.how-link:hover {
  text-decoration: underline;
}

.how-it-works {
  width: min(840px, 100%);
  margin: var(--space-3xl) auto 0;
  text-align: left;
}

.how-section-header {
  max-width: 700px;
  margin: 0 auto var(--space-xl);
  text-align: center;
}

.how-eyebrow {
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.how-section-header h2 {
  color: var(--color-text);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.how-section-header > p {
  color: var(--color-text-light);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.7;
}

.how-guide {
  display: grid;
  gap: var(--space-lg);
}

.how-step {
  display: grid;
  gap: var(--space-lg);
  padding: clamp(20px, 4vw, 32px);
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.how-step-copy {
  max-width: 680px;
}

.how-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: white;
  font-size: 14px;
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.how-step h3 {
  color: var(--color-text);
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 800;
  line-height: 1.22;
  margin-bottom: var(--space-sm);
}

.how-step p {
  color: var(--color-text-light);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
}

.how-step p + p {
  margin-top: var(--space-sm);
}

.how-step strong {
  color: var(--color-text);
  font-weight: 800;
}

.how-media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #F8FAFC;
  box-shadow: var(--shadow-sm);
}

.how-media img {
  display: block;
  width: 100%;
  height: auto;
}

.how-media-phone {
  max-width: 360px;
  margin-inline: auto;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.how-media-wide {
  background: white;
}

.how-proof-callout {
  max-width: 620px;
  margin: 0 auto;
  color: var(--color-text);
  font-size: clamp(18px, 3vw, 24px);
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
  width: min(920px, 100%);
  margin-top: calc(var(--space-2xl) + 12px);
}

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: left;
}

.trust-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.trust-icon svg {
  width: 20px;
  height: 20px;
}

.trust-item strong {
  display: block;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 3px;
}

.trust-item span:not(.trust-icon) {
  display: block;
  color: var(--color-text-light);
  font-size: 13px;
  line-height: 1.45;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 17px;
}

.btn-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-secondary);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-danger {
  background: white;
  color: var(--color-danger);
  border: 1px solid var(--color-border);
}

.btn-danger:hover:not(:disabled) {
  background: #FEF2F2;
  border-color: var(--color-danger);
}

/* ============================================================================
   DASHBOARD / MY FILES
   ============================================================================ */

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: var(--space-2xl) 0 var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.page-header h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
}

#foldersContainer {
  margin-top: 0;
}

#foldersList {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.folder-card {
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.folder-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 38px rgba(15, 23, 42, 0.1);
  border-color: rgba(15, 160, 140, 0.28);
}

.folder-line {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-md);
  gap: var(--space-md);
}

.folder-card-heading {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fid {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text);
}

.folder-expiry {
  font-size: 13px;
  font-weight: 700;
  color: #0F766E;
  white-space: nowrap;
  padding-top: 2px;
}

.folder-meta {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-top: var(--space-sm);
}

.folder-card-open {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  color: #0F766E;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.folder-card-open-arrow {
  font-size: 16px;
  line-height: 1;
}

.folder-card-progress-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.folder-card-progress-row .folder-mini-progress {
  flex: 1;
  margin-bottom: 0;
}

.folder-card-progress-row .folder-progress-text {
  min-width: 38px;
  text-align: right;
}

.folder-preview-row {
  min-height: 60px;
}

.folder-preview-stack {
  display: flex;
  align-items: center;
  padding-left: 12px;
  min-height: 60px;
}

.folder-preview-tile {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.88);
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.1);
  background: #E2E8F0;
  flex: 0 0 auto;
}

.folder-preview-tile img,
.folder-preview-fallback {
  width: 100%;
  height: 100%;
  display: block;
}

.folder-preview-tile img {
  object-fit: cover;
  filter: blur(2.5px) saturate(0.95) brightness(0.98);
  transform: scale(1.08);
}

.folder-preview-fallback {
  background: linear-gradient(135deg, #DDEAFE 0%, #F1F5F9 100%);
}

.folder-preview-more {
  align-items: center;
  display: flex;
  justify-content: center;
  color: white;
  font-size: 16px;
  font-weight: 800;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.92), rgba(71, 85, 105, 0.88));
}

.folder-preview-play {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 24px;
  height: 24px;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.58);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.18);
}

.folder-preview-play::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 54%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 5px 0 5px 8px;
  border-color: transparent transparent transparent rgba(255, 255, 255, 0.96);
}

.folder-preview-empty {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 72px;
  padding: 12px 14px;
  border: 1px dashed rgba(15, 160, 140, 0.24);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(240, 253, 250, 0.82), rgba(248, 250, 252, 0.92));
  color: var(--color-text-light);
  font-size: 14px;
  font-weight: 700;
}

.folder-preview-empty-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  flex: 0 0 auto;
}

.folder-status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 6px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 800;
}

.folder-status-success {
  background: #DCFCE7;
  color: #166534;
}

.folder-status-info {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.folder-status-warning {
  background: #FEF3C7;
  color: #92400E;
}

.folder-status-danger {
  background: #FEE2E2;
  color: #991B1B;
}

.folder-status-neutral {
  background: var(--color-bg-tertiary);
  color: var(--color-text-light);
}

.folder-progress-text {
  color: var(--color-text);
  font-size: 14px;
  font-weight: 800;
}

.folder-mini-progress {
  height: 7px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.folder-mini-progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: inherit;
  transition: width var(--transition-base);
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-lg);
  text-align: center;
  border: 1px dashed var(--color-border-hover);
  border-radius: var(--radius-md);
  background: #F8FAFC;
}

.empty-state svg {
  color: var(--color-text-lighter);
  margin-bottom: var(--space-lg);
}

.empty-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.empty-subtext {
  font-size: 15px;
  color: var(--color-text-light);
}

/* ============================================================================
   EXPIRY SELECTION MODAL
   ============================================================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--space-lg);
}

.modal-box {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  max-width: 430px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  width: 100%;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 200ms ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.modal-subtitle {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.expiry-options {
  display: grid;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.expiry-option {
  display: flex;
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

.expiry-option:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.expiry-option input[type="radio"] {
  margin-right: var(--space-md);
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.expiry-option input[type="radio"]:checked ~ .expiry-label {
  font-weight: 700;
  color: var(--color-primary);
}

.expiry-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.expiry-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
}

.modal-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
}

.folder-setup-fields {
  display: grid;
  gap: 8px;
  margin-bottom: var(--space-xl);
}

.field-label {
  display: block;
  color: var(--color-text);
  font-size: 13px;
  font-weight: 800;
  margin-top: var(--space-sm);
}

.folder-setup-fields .field-label:first-child {
  margin-top: 0;
}

.access-question-label {
  margin-top: var(--space-lg);
}

.text-input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 var(--space-md);
  color: var(--color-text);
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.text-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.access-options {
  display: grid;
  gap: var(--space-sm);
}

.access-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.access-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.access-option input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.access-option strong,
.access-option small {
  display: block;
}

.access-option strong {
  color: var(--color-text);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.25;
}

.access-option small {
  color: var(--color-text-light);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 3px;
}

.notice-stack {
  position: fixed;
  top: calc(72px + var(--space-md));
  right: var(--space-lg);
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

.notice {
  padding: 13px 15px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: white;
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  animation: noticeEnter 180ms ease both;
}

.notice-info {
  border-color: #C7D2FE;
  background: #EEF2FF;
  color: #312E81;
}

.notice-success {
  border-color: #86EFAC;
  background: #DCFCE7;
  color: #166534;
}

.notice-warning {
  border-color: #FCD34D;
  background: #FEF3C7;
  color: #92400E;
}

.notice-error {
  border-color: #FCA5A5;
  background: #FEE2E2;
  color: #991B1B;
}

.notice-exit {
  animation: noticeExit 160ms ease both;
}

@keyframes noticeEnter {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes noticeExit {
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

/* ============================================================================
   FOLDER VIEW (UNIFIED - MOBILE FIRST)
   ============================================================================ */

.folder-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-lg);
  min-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
}

/* Back Button */
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: none;
  color: var(--color-text-light);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition-fast);
  margin-bottom: var(--space-lg);
}

.btn-back:hover {
  color: var(--color-primary);
}

.btn-back svg {
  width: 20px;
  height: 20px;
}

/* Folder Title */
.folder-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

/* Expiry Timer */
.folder-expiry-timer {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-light);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.folder-expiry-timer svg {
  flex-shrink: 0;
}

.folder-share-panel {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-md);
  margin: var(--space-md) 0 0;
  background: #F8FAFC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.share-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.share-label {
  color: var(--color-text-light);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

.share-note {
  color: var(--color-text-light);
  font-size: 12px;
  line-height: 1.45;
  margin: 0;
}

.share-copy-btn {
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-full);
  background: #EFF6FF;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 800;
  padding: 6px 12px;
  white-space: nowrap;
  cursor: pointer;
}

.share-link-text {
  display: block;
  width: 100%;
  min-width: 0;
  color: var(--color-text);
  font-size: 15px;
  font-family: inherit;
  font-weight: 800;
  line-height: 1.35;
  padding: 10px 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

input.share-link-text {
  appearance: none;
  cursor: text;
}

input.share-link-text:focus {
  border-color: #93C5FD;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  outline: none;
}

.share-details {
  display: grid;
  gap: 6px;
  color: var(--color-text-light);
  font-size: 13px;
  font-weight: 700;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.share-detail-line {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 5px;
  max-width: 100%;
}

.share-detail-line span {
  min-width: 0;
}

.share-details strong {
  color: var(--color-text);
  font-size: 13px;
  letter-spacing: 0;
}

.share-password-line strong {
  letter-spacing: 1px;
}

.share-modal-card {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.share-password-text {
  color: var(--color-text);
  font-size: 20px;
  font-weight: 800;
}

/* Upload Info Bar */
.folder-upload-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: #FEF3C7;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-md);
  color: #92400E;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.folder-upload-info-info {
  background: var(--color-primary-light);
  border-color: #C7D2FE;
  color: var(--color-primary);
}

.folder-upload-info-success {
  background: #DCFCE7;
  border-color: #86EFAC;
  color: #166534;
}

.folder-upload-info-warning {
  background: #FEF3C7;
  border-color: #FCD34D;
  color: #92400E;
}

.folder-upload-info-error {
  background: #FEE2E2;
  border-color: #FCA5A5;
  color: #991B1B;
}

.folder-upload-info svg {
  flex-shrink: 0;
  color: #F59E0B;
}

/* Content Area */
.folder-content {
  flex: 0 0 auto;
  margin-bottom: var(--space-lg);
}

/* ============================================================================
   FILE LIST (STATE 1: Editing/Uploading)
   ============================================================================ */

.folder-file-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.folder-empty-panel {
  padding: var(--space-xl);
  border: 1px dashed var(--color-border-hover);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  text-align: center;
}

.folder-empty-title {
  color: var(--color-text);
  font-size: 17px;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.folder-empty-text {
  color: var(--color-text-light);
  font-size: 14px;
  margin-bottom: var(--space-md);
}

.folder-empty-note {
  color: var(--color-text-light);
  font-size: 12px;
  line-height: 1.55;
  max-width: 460px;
  margin: 0 auto;
}

.file-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.file-item.queued {
  opacity: 0.6;
}

.file-item.uploading {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  animation: pulse 2s ease-in-out infinite;
}

.file-item.preparing {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--color-primary-light); }
  50% { box-shadow: 0 0 0 6px var(--color-primary-light); }
}

.file-item.completed {
  border-color: var(--color-success);
  background: #F0FDF4;
}

.file-item.failed {
  border-color: var(--color-danger);
  background: #FEF2F2;
}

/* Paused state - files stopped mid-upload */
.file-item.paused {
  border-color: var(--color-accent);
  background: #ECFEFF;
}

/* File Thumbnail */
.file-thumb {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

/* File Info */
.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: var(--space-xs);
}

.file-item.queued .file-name {
  color: var(--color-text-lighter);
}

.file-item.uploading .file-name {
  color: var(--color-primary);
}

.file-item.preparing .file-name {
  color: var(--color-primary);
}

.file-item.completed .file-name {
  color: var(--color-success);
}

.file-item.failed .file-name {
  color: var(--color-danger);
}

.file-item.paused .file-name {
  color: var(--color-accent);
}

/* Progress Bar */
.file-progress {
  width: 100%;
  height: 7px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.file-progress-fill {
  position: relative;
  height: 100%;
  background: var(--gradient-primary);
  width: 0%;
  transition: width 300ms ease;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.file-item.uploading .file-progress-fill::after,
.file-item.preparing .file-progress-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  min-width: 64px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.2) 38%,
    rgba(255, 255, 255, 0.72) 50%,
    rgba(255, 255, 255, 0.2) 62%,
    transparent 100%
  );
  transform: translateX(-100%);
  animation: progress-flow 1.05s linear infinite;
}

@keyframes progress-flow {
  to {
    transform: translateX(100%);
  }
}

.file-item.completed .file-progress-fill {
  background: var(--color-success);
}

.file-item.failed .file-progress-fill {
  background: var(--color-danger);
}

.file-item.paused .file-progress-fill {
  background: var(--color-accent);
}

/* File Status */
.file-status {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.file-percentage {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-light);
  min-width: 40px;
  text-align: right;
}

.file-item.completed .file-percentage {
  color: var(--color-success);
}

.file-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-trash {
  padding: var(--space-xs);
  background: transparent;
  border: none;
  color: var(--color-text-lighter);
  cursor: pointer;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-trash:hover {
  color: var(--color-danger);
}

.btn-trash svg {
  width: 18px;
  height: 18px;
}

/* ============================================================================
   FINALIZED VIEW (STATE 2: Blurred Thumbnails)
   ============================================================================ */

.folder-finalized {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.folder-snapshot-prompt {
  display: grid;
  gap: var(--space-md);
  padding: clamp(16px, 4vw, 22px);
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.folder-snapshot-title {
  color: var(--color-text);
  font-size: 17px;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.folder-snapshot-text {
  color: var(--color-text-light);
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
}

.folder-snapshot-preview {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2px 0 0;
}

.folder-snapshot-phone-image {
  display: block;
  width: 48px;
  max-width: 48px;
  max-height: 72px;
  flex: 0 0 auto;
  height: auto;
  object-fit: contain;
}

.folder-snapshot-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.folder-thumbnails-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(70px, 88px));
  gap: var(--space-sm);
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
  justify-content: center;
}

.folder-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.folder-metadata {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
}

.folder-metadata-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.folder-metadata-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.folder-metadata-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.folder-metadata-label {
  color: var(--color-text);
  font-weight: 600;
}

.folder-metadata-value {
  color: var(--color-text-light);
  text-align: right;
}

/* ============================================================================
   FOLDER FOOTER (BUTTONS)
   ============================================================================ */

.folder-footer {
  background: var(--color-bg-tertiary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin: 0 calc(-1 * var(--space-lg));
  margin-bottom: 0;
}

.folder-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: flex-end;
  flex-wrap: wrap;
}

.btn-proof {
  box-shadow: var(--shadow-md);
  min-width: 196px;
}

/* ============================================================================
   PUBLIC SHARE PAGE
   ============================================================================ */

.share-page {
  background:
    linear-gradient(180deg, #EEF2FF 0%, #F8FAFC 42%, #FFFFFF 100%);
}

.share-shell {
  width: 100%;
  min-height: calc(100vh - 73px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-2xl) var(--space-lg);
}

.share-card {
  width: min(100%, 560px);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: clamp(24px, 5vw, 36px);
}

.share-lock-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.12);
}

.share-lock-icon svg {
  width: 24px;
  height: 24px;
}

.share-card h1 {
  color: var(--color-text);
  font-size: clamp(30px, 6vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-sm);
}

.share-card > p {
  color: var(--color-text-light);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  margin-bottom: var(--space-xl);
}

.share-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.share-summary div,
.share-countdown {
  background: #F8FAFC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.share-summary span,
.share-countdown span {
  display: block;
  color: var(--color-text-light);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.share-summary strong,
.share-countdown strong {
  display: block;
  color: var(--color-text);
  font-size: 20px;
  font-weight: 800;
}

.share-countdown {
  margin-top: var(--space-xl);
  border-color: #BFDBFE;
  background: linear-gradient(180deg, #EFF6FF 0%, #DBEAFE 100%);
  text-align: center;
}

.share-countdown span {
  margin-bottom: var(--space-sm);
}

.share-countdown strong {
  color: #1D4ED8;
  font-size: clamp(32px, 8vw, 48px);
  letter-spacing: 0;
}

.share-unlock {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: #F8FAFC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.share-unlock label {
  color: var(--color-text);
  font-size: 13px;
  font-weight: 800;
}

.share-password-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-sm);
}

.share-password-row .text-input {
  min-width: 0;
}

.share-enter-btn {
  min-width: 104px;
  padding-inline: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.share-error {
  color: #991B1B;
  background: #FEE2E2;
  border: 1px solid #FCA5A5;
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: 13px;
  font-weight: 800;
}

.share-beta {
  color: #92400E;
  background: #FEF3C7;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.45;
  margin: var(--space-xs) 0 0;
}

.share-files {
  display: grid;
  gap: var(--space-sm);
}

.share-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
}

.share-file-row span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--color-text);
  font-weight: 700;
}

.share-file-row strong {
  flex: 0 0 auto;
  color: var(--color-text-light);
  font-weight: 700;
  white-space: nowrap;
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.site-footer {
  margin-top: auto;
  padding: var(--space-2xl) 0;
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-copyright {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.footer-terms {
  font-size: 13px;
  color: var(--color-text-lighter);
}

.footer-terms a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.footer-terms a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

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

@media (max-width: 768px) {
  .site-header {
    padding: 12px 0;
  }

  .site-header .container {
    align-items: center;
    gap: 10px;
  }

  .logo {
    font-size: 17px;
    line-height: 1;
  }

  .nav {
    align-items: center;
    gap: 4px;
    margin-left: auto;
  }

  .nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 6px 11px;
    font-size: 13px;
    line-height: 1;
    white-space: nowrap;
  }

  .hero {
    align-items: stretch;
    text-align: left;
    padding: 40px var(--space-lg) var(--space-2xl);
  }

  .hero-title,
  .hero-subtitle,
  .hero-note {
    margin-left: 0;
    margin-right: 0;
  }

  .hero .btn {
    width: 100%;
  }

  .home-workspace {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
  }

  .workspace-header {
    align-items: stretch;
  }

  .workspace-heading {
    align-items: center;
  }

  .workspace-header .btn {
    width: 100%;
  }

  .trust-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
    margin-top: calc(var(--space-2xl) + 8px);
  }

  .trust-item {
    padding: var(--space-md);
  }

  .how-it-works {
    margin-top: var(--space-2xl);
  }

  .how-section-header {
    text-align: left;
  }

  .how-step {
    padding: var(--space-lg);
  }

  .how-media-phone {
    max-width: min(360px, 100%);
  }

  .notice-stack {
    top: auto;
    right: var(--space-md);
    bottom: calc(84px + var(--space-md));
    left: var(--space-md);
    width: auto;
  }

  .folder-upload-info {
    align-items: flex-start;
    font-size: 15px;
    line-height: 1.4;
  }

  .folder-buttons {
    flex-direction: column;
  }
  
  .folder-buttons .btn {
    width: 100%;
  }

  .share-row,
  .share-file-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .folder-share-panel .share-row {
    align-items: center;
    flex-direction: row;
  }
  
  #foldersList {
    grid-template-columns: 1fr;
  }

  .folder-preview-stack {
    padding-left: 8px;
  }

  .folder-preview-tile {
    width: 48px;
    height: 48px;
    border-radius: 13px;
  }
  
  .folder-thumbnails-grid {
    grid-template-columns: repeat(auto-fit, minmax(68px, 84px));
  }

  .folder-snapshot-preview-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .folder-snapshot-actions {
    flex-direction: column;
  }

  .folder-snapshot-actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .site-header .container {
    gap: 8px;
  }

  .logo {
    font-size: 16px;
  }

  .nav {
    gap: 3px;
  }

  .nav a {
    min-height: 32px;
    padding: 6px 10px;
    font-size: 12px;
  }
  
  .folder-container {
    padding: var(--space-md);
  }

  .hero-title {
    font-size: 34px;
  }

  .how-step {
    gap: var(--space-md);
  }

  .how-media-wide {
    margin-inline: calc(-1 * var(--space-sm));
  }

  .share-shell {
    padding: var(--space-lg) var(--space-md);
  }

  .share-password-row {
    grid-template-columns: 1fr;
  }

  .share-enter-btn {
    width: 100%;
  }
  
  .file-thumb {
    width: 36px;
    height: 36px;
  }
}



/* Encrypting state */
.file-item.encrypting {
  border-color: var(--color-secondary);
  background: #F5F3FF; /* Light purple */
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.file-item.encrypting .file-name {
  color: var(--color-secondary);
}

.file-item.encrypting .file-progress-fill {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
  animation: pulse-encrypt 2s ease-in-out infinite;
}

@keyframes pulse-encrypt {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* Make percentage text italic during encryption */
.file-item.encrypting .file-percentage {
  font-style: italic;
  color: var(--color-secondary);
}

/* Animated ellipsis for "Securing..." and "Preparing..." */
.ellipsis-animated::after {
  content: '';
  animation: ellipsis 1.5s infinite;
  display: inline-block;
  width: 1.5em;
  text-align: left;
}

@keyframes ellipsis {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
  100% { content: ''; }
}