/* DeCloud Professional UI
   A compact Fluent-inspired design system for consistent surfaces and controls. */

:root,
:root[data-theme="light"] {
  --bg: #f4f6f8;
  --bg-gradient: #f4f6f8;
  --glass: #ffffff;
  --glass-hover: #f6f8fa;
  --glass-border: #e1e5eb;
  --glass-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
  --glass-shadow-lg: 0 8px 24px rgba(16, 24, 40, 0.10);
  --glass-inset: none;
  --card: #ffffff;
  --card-hover: #f8fafc;
  --accent: #0067c0;
  --accent-soft: rgba(0, 103, 192, 0.09);
  --accent-glow: rgba(0, 103, 192, 0.14);
  --accent-text: #005a9e;
  --text: #202124;
  --text-dim: #59616b;
  --text-faint: #727b86;
  --hairline: #e8ebef;
  --hairline-strong: #d8dde4;
  --surface-solid: #ffffff;
  --modal-bg: rgba(20, 28, 38, 0.48);
  --terminal-bg: #171a1f;
  --terminal-text: #b7e4c7;
  --scrollbar: rgba(76, 88, 104, 0.28);
  --scrollbar-hover: rgba(76, 88, 104, 0.46);
  --chip-bg: #ffffff;
  --chip-border: #e1e5eb;
  --sparkline-stroke: rgba(0, 103, 192, 0.72);
  --sparkline-fill: rgba(0, 103, 192, 0.10);
  --radius: 12px;
  --blur: 0px;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #17191c;
  --bg-gradient: #17191c;
  --glass: #22252a;
  --glass-hover: #2b2f35;
  --glass-border: #3a3f46;
  --glass-shadow: 0 1px 2px rgba(0, 0, 0, 0.22);
  --glass-shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.34);
  --glass-inset: none;
  --card: #22252a;
  --card-hover: #2b2f35;
  --accent: #60cdff;
  --accent-soft: rgba(96, 205, 255, 0.12);
  --accent-glow: rgba(96, 205, 255, 0.16);
  --accent-text: #99e4ff;
  --text: #f1f3f4;
  --text-dim: #c0c4ca;
  --text-faint: #9aa1aa;
  --hairline: #30343a;
  --hairline-strong: #41464e;
  --surface-solid: #22252a;
  --modal-bg: rgba(0, 0, 0, 0.66);
  --terminal-bg: #111316;
  --terminal-text: #a6e3b7;
  --scrollbar: rgba(210, 216, 224, 0.24);
  --scrollbar-hover: rgba(210, 216, 224, 0.4);
  --chip-bg: #22252a;
  --chip-border: #3a3f46;
  --sparkline-stroke: rgba(96, 205, 255, 0.76);
  --sparkline-fill: rgba(96, 205, 255, 0.12);
  --radius: 12px;
  --blur: 0px;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --bg: #17191c;
    --bg-gradient: #17191c;
    --glass: #22252a;
    --glass-hover: #2b2f35;
    --glass-border: #3a3f46;
    --glass-shadow: 0 1px 2px rgba(0, 0, 0, 0.22);
    --glass-shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.34);
    --glass-inset: none;
    --card: #22252a;
    --card-hover: #2b2f35;
    --accent: #60cdff;
    --accent-soft: rgba(96, 205, 255, 0.12);
    --accent-glow: rgba(96, 205, 255, 0.16);
    --accent-text: #99e4ff;
    --text: #f1f3f4;
    --text-dim: #c0c4ca;
    --text-faint: #9aa1aa;
    --hairline: #30343a;
    --hairline-strong: #41464e;
    --surface-solid: #22252a;
    --modal-bg: rgba(0, 0, 0, 0.66);
    --terminal-bg: #111316;
    --terminal-text: #a6e3b7;
    --scrollbar: rgba(210, 216, 224, 0.24);
    --scrollbar-hover: rgba(210, 216, 224, 0.4);
    --chip-bg: #22252a;
    --chip-border: #3a3f46;
    --sparkline-stroke: rgba(96, 205, 255, 0.76);
    --sparkline-fill: rgba(96, 205, 255, 0.12);
    color-scheme: dark;
  }
}

html { background: var(--bg); }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  letter-spacing: 0;
}

button, input, select, textarea { font-family: inherit; }
button { color: inherit; }
::selection { color: #fff; background: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.screen.active { animation: none; }

/* Home dashboard */
#home-screen { padding-top: clamp(18px, 4vh, 38px); }
.top-bar {
  width: min(100%, 1040px);
  margin-inline: auto;
  padding: 8px 24px 0;
  align-items: center;
}
.clock {
  font-size: clamp(30px, 4vw, 38px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
}
.notif-bell {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: background-color 0.15s, border-color 0.15s;
}
.notif-bell:hover { background: var(--glass-hover); border-color: var(--hairline-strong); }
.notif-bell:active { transform: scale(0.97); }

.status-chips {
  width: min(100%, 1040px);
  margin: 10px auto 0;
  padding: 0 24px;
  gap: 8px;
}
.stat-chip {
  min-width: 72px;
  padding: 7px 10px;
  align-items: flex-start;
  border: 1px solid var(--chip-border);
  border-radius: 10px;
  background: var(--chip-bg);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: background-color 0.15s, border-color 0.15s;
}
.stat-chip:hover { background: var(--glass-hover); border-color: var(--hairline-strong); }
.stat-chip-label { font-size: 10px; letter-spacing: 0.06em; }

.app-grid {
  width: min(100%, 1040px);
  margin: 0 auto;
  padding: 16px 24px 32px;
  grid-template-columns: repeat(auto-fill, minmax(112px, 1fr));
  gap: 12px;
}
.app-icon {
  min-height: 104px;
  padding: 10px 8px 9px;
  gap: 8px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--surface-solid);
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s;
}
.app-icon:hover { background: var(--card-hover); border-color: var(--hairline-strong); }
.app-icon:active { transform: scale(0.985); }
.app-icon-visual {
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 12px;
  background: var(--accent-soft);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.app-icon-visual svg { width: 26px; height: 26px; }
.app-label {
  max-width: 100%;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.25;
}
body.desktop-mode #home-screen { padding-top: clamp(24px, 5vh, 48px); }
body.desktop-mode .top-bar,
body.desktop-mode .status-chips,
body.desktop-mode .app-grid { width: min(100%, 1040px); max-width: 1040px; }
body.desktop-mode .top-bar { padding: 8px 24px 0; }
body.desktop-mode .clock { font-size: clamp(34px, 4vw, 42px); }
body.desktop-mode .status-chips { margin-top: 10px; padding: 0 24px; }
body.desktop-mode .app-grid {
  padding: 16px 24px 36px;
  grid-template-columns: repeat(auto-fill, minmax(124px, 1fr));
  gap: 12px;
}
body.desktop-mode .app-icon-visual { width: 52px; height: 52px; border-radius: 12px; }
body.desktop-mode .app-label { font-size: 13px; }
body.desktop-mode .app-icon.desktop-focus .app-icon-visual {
  transform: none;
  box-shadow: 0 0 0 2px var(--accent);
}
body.desktop-mode .app-icon.desktop-focus .app-label { font-weight: 600; }

/* Shared page headers and actions */
.app-header {
  min-height: 60px;
  gap: 12px;
  padding: 10px clamp(16px, 3vw, 28px);
  background: var(--surface-solid);
  border-bottom: 1px solid var(--hairline);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.app-header h2, .screen-title {
  color: var(--text);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.app-header .back-btn,
.screen-upload-btn,
.lego-manage-btn,
.lego-view-toggle,
.settings-save-btn,
.settings-feedback-btn {
  min-height: 38px;
  padding: 0 13px;
  border: 1px solid var(--hairline-strong);
  border-radius: 8px;
  background: var(--surface-solid);
  color: var(--text);
  box-shadow: none;
  font-size: 13px;
  font-weight: 600;
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s;
}
.app-header .back-btn:hover,
.lego-manage-btn:hover,
.lego-view-toggle:hover { background: var(--glass-hover); }
.screen-upload-btn,
.settings-save-btn,
.settings-feedback-btn {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}
.screen-upload-btn:hover,
.settings-save-btn:hover,
.settings-feedback-btn:hover { filter: brightness(0.96); transform: none; }
.app-header .back-btn:active,
.screen-upload-btn:active,
.lego-manage-btn:active { transform: scale(0.98); }

/* Files, lists, and media rows */
.lego-management-bar {
  padding: 12px clamp(16px, 3vw, 28px);
  background: var(--bg);
  border-bottom-color: var(--hairline);
}
.lego-list.lego-grid {
  padding: 16px clamp(16px, 3vw, 28px) 40px;
  grid-template-columns: repeat(auto-fill, minmax(138px, 1fr));
  gap: 12px;
}
.lego-card {
  background: var(--surface-solid);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  box-shadow: none;
  transition: background-color 0.15s, border-color 0.15s;
}
.lego-card:hover { background: var(--card-hover); border-color: var(--hairline-strong); }
.lego-card:active { transform: none; }
.lego-thumb-wrap { background: var(--bg); }
.lego-card-info { padding: 9px 10px 11px; }
.lego-card-name { font-size: 13px; font-weight: 600; line-height: 1.35; }
.lego-card-meta { font-size: 11px; line-height: 1.4; }
.lego-list:not(.lego-grid) { gap: 0; padding: 8px clamp(16px, 3vw, 28px) 40px; }
.lego-list:not(.lego-grid) .lego-card {
  min-height: 66px;
  padding: 8px 10px;
  border: 0;
  border-bottom: 1px solid var(--hairline);
  border-radius: 0;
  background: transparent;
}
.lego-list:not(.lego-grid) .lego-card:hover { background: var(--card-hover); }
.lego-list:not(.lego-grid) .lego-thumb-wrap { width: 46px; height: 46px; border-radius: 8px; }
.lego-list:not(.lego-grid) .lego-card-name { font-size: 14px; }
.music-list { padding: 12px clamp(16px, 3vw, 28px); }
.music-song-row {
  min-height: 68px;
  margin: 0;
  padding: 9px 10px;
  border-bottom: 1px solid var(--hairline);
  border-radius: 0;
  transition: background-color 0.15s;
}
.music-song-row:hover { background: var(--card-hover); }
.music-song-row.playing { background: var(--accent-soft); }
.music-player {
  background: var(--surface-solid);
  border-top: 1px solid var(--hairline);
  box-shadow: 0 -4px 16px rgba(16, 24, 40, 0.04);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* Forms and dialogs */
.settings-input,
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="file"]),
select,
textarea {
  border-color: var(--hairline-strong);
  border-radius: 8px;
  background: var(--surface-solid);
  color: var(--text);
  box-shadow: none;
}
.settings-input:focus,
input:focus,
select:focus,
textarea:focus { border-color: var(--accent); outline: none; }
.app-confirm-card,
.onboarding-card,
.login-card {
  border: 1px solid var(--hairline-strong);
  border-radius: 14px;
  background: var(--surface-solid);
  box-shadow: var(--glass-shadow-lg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.app-confirm-actions button { border-radius: 8px; }
.notif-panel {
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  background: var(--surface-solid);
  box-shadow: var(--glass-shadow-lg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.decloud-upload-status {
  border-color: var(--hairline-strong);
  border-radius: 10px;
  background: var(--surface-solid);
  box-shadow: var(--glass-shadow-lg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* Keep voice control available without covering the home shortcuts. */
.voice-orb {
  width: 48px;
  height: 48px;
  bottom: calc(18px + var(--safe-bottom));
  right: 18px;
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  background: var(--surface-solid);
  box-shadow: var(--glass-shadow-lg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
body:has(#home-screen.active) .voice-orb {
  top: calc(clamp(18px, 4vh, 38px) + 8px);
  right: 72px;
  bottom: auto;
  width: 40px;
  height: 40px;
}

@media (max-width: 520px) {
  .top-bar { padding-inline: 16px; }
  .status-chips { padding-inline: 16px; }
  .app-grid { padding-inline: 16px; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 9px; }
  .app-icon { min-height: 96px; padding: 10px 6px 8px; }
  .app-icon-visual { width: 48px; height: 48px; }
  body.desktop-mode .app-grid { padding-inline: 16px; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); }
  body.desktop-mode .top-bar, body.desktop-mode .status-chips { padding-inline: 16px; }
  .lego-list.lego-grid { grid-template-columns: repeat(auto-fill, minmax(112px, 1fr)); }
  body:has(#home-screen.active) .voice-orb { right: 64px; }
}

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