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

:root {
  --icon-size: 76px;
  --icon-radius: 18px;
  --gap: 28px;
  --cols: 4;
  --rows: 5;
  --label-color: #fff;
  --label-shadow: 0 1px 3px rgba(0,0,0,0.7);
  --folder-bg: rgba(255,255,255,0.18);
  --overlay-bg: rgba(0,0,0,0.55);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
  user-select: none;
  -webkit-user-select: none;
}

/* ===== BACKGROUND ===== */
#bg {
  position: fixed; inset: 0; z-index: 0;
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
  background-size: cover;
  background-position: center;
  transition: background var(--transition);
}

#bg::after {
  content: '';
  position: absolute; inset: 0;
  backdrop-filter: blur(0px);
}

/* ===== STATUS BAR ===== */
#statusbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: 44px; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  color: #fff;
  font-size: 15px; font-weight: 600;
}

#statusbar .time { font-size: 17px; font-weight: 700; letter-spacing: -0.3px; }
#statusbar .icons { display: flex; gap: 6px; align-items: center; font-size: 13px; }

/* ===== MAIN CONTAINER ===== */
#app {
  position: fixed; inset: 0;
  display: flex; flex-direction: column;
  z-index: 1;
  padding-top: 44px;
  padding-bottom: 100px;
}

/* ===== SWIPE CONTAINER ===== */
#slider-wrapper {
  flex: 1;
  overflow: hidden;
  position: relative;
}

#slider {
  display: flex;
  height: 100%;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.page {
  min-width: 100vw;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 32px;
}

/* ===== ICON GRID ===== */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--icon-size));
  grid-template-rows: repeat(var(--rows), auto);
  gap: var(--gap);
  align-content: start;
}

/* ===== APP ICON ===== */
.app-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.app-icon .icon-wrap {
  width: var(--icon-size);
  height: var(--icon-size);
  border-radius: var(--icon-radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
  position: relative;
}

.app-icon .icon-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: var(--icon-radius);
}

.app-icon:active .icon-wrap,
.app-icon.pressing .icon-wrap {
  transform: scale(0.88);
  box-shadow: 0 1px 6px rgba(0,0,0,0.4);
}

.app-icon .icon-label {
  color: var(--label-color);
  font-size: 11px;
  font-weight: 500;
  text-align: center;
  text-shadow: var(--label-shadow);
  max-width: calc(var(--icon-size) + 16px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

/* ===== FOLDER ICON ===== */
.folder-icon .icon-wrap {
  background: var(--folder-bg);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
}

.folder-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  padding: 8px;
  width: 100%; height: 100%;
}

.folder-preview-item {
  border-radius: 5px;
  overflow: hidden;
  background: rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.folder-preview-item img {
  width: 100%; height: 100%;
  object-fit: cover;
}

/* ===== PAGE INDICATOR (DOTS) ===== */
#page-dots {
  position: fixed;
  bottom: 60px; left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 8px;
  z-index: 10;
}

.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  transition: all 0.25s ease;
  cursor: pointer;
}

.dot.active {
  background: #fff;
  width: 20px;
  border-radius: 4px;
}

/* ===== DOCK ===== */
#dock {
  position: fixed;
  bottom: 16px; left: 50%; transform: translateX(-50%);
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 28px;
  padding: 12px 20px;
  display: flex;
  gap: 20px;
  align-items: center;
  z-index: 50;
}

/* ===== FOLDER MODAL ===== */
#folder-modal {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease;
}

#folder-modal.open {
  opacity: 1; pointer-events: all;
}

#folder-modal .modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

#folder-modal .modal-content {
  position: relative; z-index: 1;
  background: rgba(60,60,80,0.85);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 24px;
  padding: 24px 28px 20px;
  width: min(380px, 90vw);
  transform: scale(0.85);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#folder-modal.open .modal-content {
  transform: scale(1);
}

#folder-modal .modal-title {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 20px;
  text-shadow: var(--label-shadow);
}

#folder-modal .folder-grid {
  display: grid;
  grid-template-columns: repeat(3, var(--icon-size));
  gap: 20px;
  justify-content: center;
}

/* ===== ADMIN BUTTON ===== */
#admin-btn {
  position: fixed;
  bottom: 16px; right: 20px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 16px;
  z-index: 50;
  transition: all 0.2s;
}

#admin-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* ===== MODAL BASE ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 450;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.open {
  opacity: 1; pointer-events: all;
}

.modal-box {
  background: #1c1c2e;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 28px;
  width: min(440px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.25s ease;
}

.modal-overlay.open .modal-box {
  transform: translateY(0);
}

.modal-box h2 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}

/* ===== FORM STYLES ===== */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  padding: 10px 14px;
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  border-color: rgba(255,255,255,0.4);
}

.form-group input::placeholder { color: rgba(255,255,255,0.3); }

.form-group select option { background: #1c1c2e; color: #fff; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}

.btn-primary {
  background: #5e5ce6;
  color: #fff;
}
.btn-primary:hover { background: #4b49c8; }

.btn-danger {
  background: rgba(255,59,48,0.2);
  color: #ff3b30;
  border: 1px solid rgba(255,59,48,0.3);
}
.btn-danger:hover { background: rgba(255,59,48,0.35); }

.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.1);
}
.btn-ghost:hover { background: rgba(255,255,255,0.15); }

.btn-sm { padding: 6px 14px; font-size: 13px; }

/* ===== ADMIN PANEL ===== */
#admin-panel {
  position: fixed; inset: 0; z-index: 400;
  background: #0f0f1a;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

#admin-panel.open {
  transform: translateX(0);
}

#admin-header {
  position: sticky; top: 0;
  background: rgba(15,15,26,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 16px 20px;
  display: flex; align-items: center; justify-content: space-between;
  z-index: 10;
}

#admin-header h1 {
  color: #fff;
  font-size: 18px; font-weight: 700;
}

#admin-body { padding: 20px; max-width: 600px; margin: 0 auto; }

/* Admin Sections */
.admin-section {
  margin-bottom: 32px;
}

.admin-section h3 {
  color: rgba(255,255,255,0.5);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* App List */
.app-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  margin-bottom: 8px;
  border: 1px solid rgba(255,255,255,0.06);
}

.app-list-item .item-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  overflow: hidden;
}
.app-list-item .item-icon img {
  width: 100%; height: 100%; object-fit: cover;
}

.app-list-item .item-info { flex: 1; min-width: 0; }
.app-list-item .item-name { color: #fff; font-size: 14px; font-weight: 600; }
.app-list-item .item-url { color: rgba(255,255,255,0.4); font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.app-list-item .item-actions { display: flex; gap: 6px; }

/* Password Login */
#password-screen {
  position: fixed; inset: 0; z-index: 500;
  background: #0f0f1a;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 20px;
}

#password-screen h2 { color: #fff; font-size: 22px; font-weight: 700; }
#password-screen p { color: rgba(255,255,255,0.5); font-size: 14px; }

#password-screen input {
  width: 260px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 12px;
  padding: 12px 16px;
  color: #fff;
  font-size: 16px;
  text-align: center;
  letter-spacing: 4px;
  outline: none;
}

.error-msg {
  color: #ff3b30;
  font-size: 13px;
}

/* ===== BG PICKER ===== */
.bg-options {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.bg-swatch {
  height: 56px;
  border-radius: 10px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.2s, transform 0.15s;
}

.bg-swatch:hover { transform: scale(1.05); }
.bg-swatch.selected { border-color: #5e5ce6; }

/* ===== TOGGLE ===== */
.toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.toggle-row label { color: #fff; font-size: 15px; }

.toggle {
  position: relative; width: 44px; height: 26px;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.2);
  border-radius: 13px;
  cursor: pointer;
  transition: background 0.2s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 22px; height: 22px;
  left: 2px; top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle input:checked + .toggle-slider { background: #30d158; }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 480px) {
  :root {
    --icon-size: 64px;
    --icon-radius: 15px;
    --gap: 14px;
    --cols: 4;
  }
  /* 縮小側邊 padding，讓 4×64 + 3×14 = 298px 能在 375px 螢幕容納 */
  .page { padding: 20px 16px; }
  .icon-grid { grid-template-columns: repeat(var(--cols), var(--icon-size)); }
}

@media (min-width: 768px) {
  :root {
    --icon-size: 90px;
    --icon-radius: 20px;
    --gap: 36px;
    --cols: 5;
  }
  .icon-grid { grid-template-columns: repeat(var(--cols), var(--icon-size)); }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }

/* ===== ICON COLOR BACKGROUNDS ===== */
.icon-color-1 { background: linear-gradient(135deg, #5e5ce6, #9b59b6) !important; }
.icon-color-2 { background: linear-gradient(135deg, #ff6b6b, #ee5a24) !important; }
.icon-color-3 { background: linear-gradient(135deg, #00b894, #00cec9) !important; }
.icon-color-4 { background: linear-gradient(135deg, #fdcb6e, #e17055) !important; }
.icon-color-5 { background: linear-gradient(135deg, #a29bfe, #6c5ce7) !important; }
.icon-color-6 { background: linear-gradient(135deg, #fd79a8, #e84393) !important; }
.icon-color-7 { background: linear-gradient(135deg, #55efc4, #00b894) !important; }
.icon-color-8 { background: linear-gradient(135deg, #74b9ff, #0984e3) !important; }

/* ===== LIGHT MODE ===== */
[data-theme="light"] {
  --label-color: #1c1c1e;
  --label-shadow: 0 1px 2px rgba(255,255,255,0.6);
  --folder-bg: rgba(0,0,0,0.1);
  --overlay-bg: rgba(255,255,255,0.5);
}

[data-theme="light"] #statusbar {
  color: #1c1c1e;
}
[data-theme="light"] #statusbar svg {
  fill: #1c1c1e;
}

[data-theme="light"] .app-icon .icon-wrap {
  background: rgba(255,255,255,0.8);
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

[data-theme="light"] .folder-icon .icon-wrap {
  background: rgba(210,210,230,0.75);
  border-color: rgba(0,0,0,0.08);
}

[data-theme="light"] .folder-preview-item {
  background: rgba(0,0,0,0.07);
}

[data-theme="light"] .dot {
  background: rgba(0,0,0,0.2);
}
[data-theme="light"] .dot.active {
  background: #1c1c1e;
}

[data-theme="light"] #admin-btn {
  background: rgba(0,0,0,0.08);
  border-color: rgba(0,0,0,0.12);
  color: rgba(0,0,0,0.45);
}
[data-theme="light"] #admin-btn:hover {
  background: rgba(0,0,0,0.14);
  color: #1c1c1e;
}

[data-theme="light"] #copy-btn {
  background: rgba(0,0,0,0.08);
  border-color: rgba(0,0,0,0.12);
  color: rgba(0,0,0,0.45);
}
[data-theme="light"] #copy-btn:hover {
  background: rgba(0,0,0,0.14);
  color: #1c1c1e;
}

[data-theme="light"] #folder-modal .modal-content {
  background: rgba(242,242,247,0.94);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] #folder-modal .modal-title {
  color: #1c1c1e;
  text-shadow: none;
}
[data-theme="light"] #folder-modal .modal-backdrop {
  background: rgba(0,0,0,0.25);
}

/* ===== ICON FALL-IN ANIMATION ===== */
@keyframes fallIn {
  from {
    opacity: 0;
    transform: translateY(-28px) scale(0.82);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.app-icon.falling {
  opacity: 0;
  animation: fallIn 0.38s ease forwards;
  animation-delay: var(--delay, 0s);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  padding: 60px 24px;
  width: 100%;
}

.empty-state .empty-icon {
  font-size: 52px;
  line-height: 1;
}

.empty-state .empty-title {
  color: var(--label-color);
  font-size: 18px;
  font-weight: 600;
  text-shadow: var(--label-shadow);
}

.empty-state .empty-desc {
  color: rgba(255,255,255,0.45);
  font-size: 13px;
  line-height: 1.5;
  max-width: 220px;
}

[data-theme="light"] .empty-state .empty-desc {
  color: rgba(0,0,0,0.38);
}

/* Admin panel */
[data-theme="light"] #admin-panel {
  background: #f2f2f7;
}
[data-theme="light"] #admin-header {
  background: rgba(242,242,247,0.95);
  border-bottom-color: rgba(0,0,0,0.1);
}
[data-theme="light"] #admin-header h1 {
  color: #1c1c1e;
}
[data-theme="light"] .admin-section h3 {
  color: rgba(0,0,0,0.4);
  border-bottom-color: rgba(0,0,0,0.08);
}

/* App list items */
[data-theme="light"] .app-list-item {
  background: rgba(255,255,255,0.8);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .app-list-item .item-name {
  color: #1c1c1e;
}
[data-theme="light"] .app-list-item .item-url {
  color: rgba(0,0,0,0.4);
}
[data-theme="light"] .app-list-item .item-icon {
  background: rgba(0,0,0,0.06);
}

/* Form elements */
[data-theme="light"] .form-group label {
  color: rgba(0,0,0,0.5);
}
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group select,
[data-theme="light"] .form-group textarea {
  background: rgba(255,255,255,0.9);
  border-color: rgba(0,0,0,0.15);
  color: #1c1c1e;
}
[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group select:focus {
  border-color: rgba(0,0,0,0.35);
}
[data-theme="light"] .form-group input::placeholder {
  color: rgba(0,0,0,0.28);
}
[data-theme="light"] .form-group select option {
  background: #fff;
  color: #1c1c1e;
}

/* Buttons */
[data-theme="light"] .btn-ghost {
  background: rgba(0,0,0,0.06);
  color: rgba(0,0,0,0.65);
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .btn-ghost:hover {
  background: rgba(0,0,0,0.1);
  color: #1c1c1e;
}

/* Toggle */
[data-theme="light"] .toggle-row {
  border-bottom-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .toggle-row label {
  color: #1c1c1e;
}
[data-theme="light"] .toggle-slider {
  background: rgba(0,0,0,0.12);
}

/* Item / edit modal box */
[data-theme="light"] .modal-overlay {
  background: rgba(0,0,0,0.35);
}
[data-theme="light"] .modal-box {
  background: #ffffff;
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .modal-box h2 {
  color: #1c1c1e;
}

/* Password screen */
[data-theme="light"] #password-screen {
  background: #f2f2f7;
}
[data-theme="light"] #password-screen h2 {
  color: #1c1c1e;
}
[data-theme="light"] #password-screen p {
  color: rgba(0,0,0,0.45);
}
[data-theme="light"] #password-screen input {
  background: rgba(255,255,255,0.9);
  border-color: rgba(0,0,0,0.15);
  color: #1c1c1e;
}

/* Scrollbar */
[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,0.15);
}

/* BG swatches: add inset ring so light swatches stay visible */
[data-theme="light"] .bg-swatch {
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08);
}

/* ===== COPY LINK BUTTON ===== */
#copy-btn {
  position: fixed;
  bottom: 16px; left: 20px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.5);
  z-index: 50;
  transition: all 0.2s;
}

#copy-btn:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}