*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0a0a0a;
  --fg: #ffffff; 
  --muted: #999; 
  --border: #222;
  --hover-border: #444;
  --glass: rgba(255, 255, 255, 0.04);
  --glass-hover: rgba(255, 255, 255, 0.08);
}

html,
body {
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: "DM Mono", monospace;
  overflow: hidden;
}

#canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
}

#clock {
  font-family: "Instrument Serif", serif;
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--fg);
  opacity: 0.4; 
  line-height: 1;
  margin-bottom: 2.5rem;
  user-select: none;
  transition: opacity 0.3s;
}
#clock:hover {
  opacity: 0.7; 
}

#search-container {
  width: min(680px, 90vw);
  position: relative;
}

#search-form {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--glass);
  backdrop-filter: blur(12px);
  transition:
    border-color 0.2s,
    background 0.2s,
    box-shadow 0.2s;
  overflow: hidden;
}
#search-form:focus-within {
  border-color: var(--fg);
  background: rgba(255, 255, 255, 0.07);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 8px 32px rgba(0, 0, 0, 0.5);
}

#engine-btn {
  padding: 0 14px 0 16px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 15px;
  display: flex;
  align-items: center;
  transition: color 0.2s;
  flex-shrink: 0;
}
#engine-btn:hover {
  color: var(--fg);
}

#search-input {
  flex: 1;
  padding: 14px 4px;
  background: none;
  border: none;
  outline: none;
  font-family: "DM Mono", monospace;
  font-size: 14px;
  font-weight: 300;
  color: var(--fg);
  caret-color: var(--fg);
  letter-spacing: 0.01em;
}
#search-input::placeholder {
  color: var(--muted);
}

#search-btn {
  padding: 0 16px;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 15px;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}
#search-btn:hover {
  color: var(--fg);
}

#suggestions {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: #111;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  z-index: 100;
}
#suggestions.visible {
  display: block;
}
.suggestion-item {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition:
    background 0.1s,
    color 0.1s;
}
.suggestion-item:hover,
.suggestion-item.active {
  background: var(--glass-hover);
  color: var(--fg);
}
.suggestion-item span.icon {
  font-size: 11px;
  opacity: 0.5;
}

#engine-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: #111;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  z-index: 200;
  min-width: 140px;
}
#engine-menu.visible {
  display: block;
}
.engine-option {
  padding: 10px 16px;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition:
    background 0.1s,
    color 0.1s;
}
.engine-option:hover {
  background: var(--glass-hover);
  color: var(--fg);
}
.engine-option.selected {
  color: var(--fg);
}
.engine-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}
.engine-option.selected .engine-dot {
  background: var(--fg);
}

#tabs-section {
  margin-top: 2.5rem;
  width: min(680px, 90vw);
}

#tabs-label {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
  padding-left: 2px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#add-tab-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 0 2px;
  transition: color 0.2s;
  font-family: "DM Mono", monospace;
}
#add-tab-btn:hover {
  color: var(--fg);
}

#tabs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 8px;
}

.tab-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 12px 10px 10px;
  background: var(--glass);
  cursor: pointer;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  transition:
    border-color 0.2s,
    background 0.2s,
    transform 0.15s;
  backdrop-filter: blur(8px);
  min-height: 72px;
  user-select: none;
}
.tab-card:hover {
  border-color: var(--hover-border);
  background: var(--glass-hover);
  transform: translateY(-1px);
}

.tab-favicon {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  filter: grayscale(1) contrast(1.2);
  flex-shrink: 0;
}
.tab-favicon img {
  width: 100%;
  height: 100%;
  border-radius: 3px;
}

.tab-name {
  font-size: 10px;
  color: var(--muted);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  letter-spacing: 0.03em;
}

.tab-remove {
  position: absolute;
  top: 4px;
  right: 5px;
  background: none;
  border: none;
  color: transparent;
  cursor: pointer;
  font-size: 11px;
  line-height: 1;
  transition: color 0.15s;
  font-family: inherit;
}
.tab-card:hover .tab-remove {
  color: var(--muted);
}
.tab-remove:hover {
  color: var(--fg) !important;
}

#modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 300;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
#modal-overlay.visible {
  display: flex;
}
#modal {
  background: #111;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  width: min(360px, 90vw);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
#modal h3 {
  font-family: "Instrument Serif", serif;
  font-size: 18px;
  font-weight: 400;
  color: var(--fg);
}
.modal-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.modal-field label {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.modal-field input {
  padding: 9px 12px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--fg);
  font-family: "DM Mono", monospace;
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}
.modal-field input:focus {
  border-color: var(--fg);
}
#modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 4px;
}
.modal-btn {
  padding: 8px 16px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: none;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 12px;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition:
    border-color 0.2s,
    color 0.2s,
    background 0.2s;
}
.modal-btn:hover {
  border-color: var(--fg);
  color: var(--fg);
}
.modal-btn.primary {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}
.modal-btn.primary:hover {
  background: #ccc;
  border-color: #ccc;
}