/* AudioBash Remote - Mobile PWA Styles */
/* Void/Brutalist theme matching desktop */

:root {
  --void: #050505;
  --void-100: #0a0a0a;
  --void-200: #111111;
  --void-300: #1a1a1a;
  --accent: #ff3333;
  --crt-green: #33ff33;
  --crt-amber: #ffaa00;
  --crt-white: #e0e0e0;
  --font-mono: 'SF Mono', 'Menlo', 'Monaco', 'Courier New', monospace;
  --font-display: 'Inter', 'SF Pro Display', -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: var(--void);
  color: var(--crt-white);
  font-family: var(--font-mono);
}

#app {
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
}

/* Screens */
.screen {
  display: none;
  height: 100%;
  width: 100%;
  flex-direction: column;
}

.screen.active {
  display: flex;
}

/* ===================== */
/* Connection Screen     */
/* ===================== */

#connect-screen {
  padding: 2rem 1.5rem;
  justify-content: center;
  align-items: center;
  gap: 2rem;
}

.connect-header {
  text-align: center;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.logo-icon {
  width: 1rem;
  height: 1rem;
  background: var(--accent);
  border-radius: 3px;
}

.subtitle {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--crt-white);
  opacity: 0.5;
  letter-spacing: 0.05em;
}

.connect-form {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--crt-white);
  opacity: 0.5;
}

.input-group input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--void-200);
  border: 1px solid var(--void-300);
  border-radius: 6px;
  color: var(--crt-white);
  font-family: var(--font-mono);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.input-group input:focus {
  border-color: var(--accent);
}

.input-group input::placeholder {
  color: var(--crt-white);
  opacity: 0.2;
}

.btn-primary {
  padding: 1rem;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  color: var(--void);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: opacity 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary:active {
  opacity: 0.8;
}

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

.btn-spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--void);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.qr-hint {
  text-align: center;
  font-size: 0.7rem;
  color: var(--crt-white);
  opacity: 0.4;
  padding: 0.5rem 0;
  border-top: 1px solid var(--void-300);
  margin-top: 0.5rem;
}

.error {
  padding: 0.75rem;
  background: rgba(255, 51, 51, 0.1);
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent);
  font-size: 0.75rem;
  text-align: center;
  display: none;
}

.error.visible {
  display: block;
}

.connect-help {
  text-align: center;
  font-size: 0.7rem;
  color: var(--crt-white);
  opacity: 0.3;
}

/* ===================== */
/* Terminal Screen       */
/* ===================== */

#terminal-screen {
  background: var(--void);
}

#status-bar {
  height: 44px;
  padding: 0 0.75rem;
  background: var(--void-100);
  border-bottom: 1px solid var(--void-300);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.status-left,
.status-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-center {
  flex: 1;
  display: flex;
  justify-content: center;
}

.indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--crt-amber);
}

.indicator.connected {
  background: var(--crt-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

#connection-status {
  font-size: 0.7rem;
  color: var(--crt-white);
  opacity: 0.7;
}

#tab-selector {
  background: var(--void-200);
  border: 1px solid var(--void-300);
  border-radius: 4px;
  padding: 0.375rem 0.75rem;
  color: var(--crt-white);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  outline: none;
}

.btn-icon {
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  color: var(--crt-white);
  opacity: 0.5;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
}

.btn-icon:active {
  opacity: 1;
  background: var(--void-300);
}

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

#terminal-container {
  flex: 1;
  overflow: hidden;
  padding: 4px;
}

#terminal-container.hidden {
  display: none;
}

/* xterm.js overrides for mobile */
#terminal-container .xterm {
  height: 100%;
}

#terminal-container .xterm-viewport {
  overflow-y: auto !important;
  -webkit-overflow-scrolling: touch;
}

/* ===================== */
/* Auxiliary Keys        */
/* ===================== */

#aux-keys {
  display: flex;
  gap: 6px;
  padding: 8px 10px;
  background: var(--void-100);
  border-top: 1px solid var(--void-300);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
  flex-shrink: 0;
}

#aux-keys::-webkit-scrollbar {
  display: none;
}

.aux-key {
  min-width: 42px;
  height: 36px;
  padding: 0 10px;
  background: var(--void-200);
  border: 1px solid var(--void-300);
  border-radius: 6px;
  color: var(--crt-white);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s ease;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.aux-key:active {
  background: var(--void-300);
  transform: scale(0.95);
}

/* Modifier keys (ctrl, alt) - toggle state */
.aux-key.modifier.active {
  background: var(--accent);
  color: var(--void);
  border-color: var(--accent);
}

/* Control sequences (^C, ^D, ^Z) - danger styling */
.aux-key[data-send="^C"],
.aux-key[data-send="^D"],
.aux-key[data-send="^Z"] {
  color: var(--accent);
  border-color: rgba(255, 51, 51, 0.3);
}

.aux-key[data-send="^C"]:active,
.aux-key[data-send="^D"]:active,
.aux-key[data-send="^Z"]:active {
  background: var(--accent);
  color: var(--void);
}

/* Arrow keys */
.aux-key[data-arrow] {
  font-size: 1rem;
  min-width: 38px;
}

/* Special characters - subtle accent */
.aux-key[data-char] {
  color: var(--crt-amber);
  font-size: 0.875rem;
}

/* Tab key - slightly wider for importance */
.aux-key[data-key="Tab"] {
  min-width: 48px;
  color: var(--crt-green);
  border-color: rgba(51, 255, 51, 0.3);
}

.aux-key[data-key="Tab"]:active {
  background: var(--crt-green);
  color: var(--void);
}

/* Esc key */
.aux-key[data-key="Escape"] {
  color: var(--crt-amber);
}

/* ===================== */
/* Command Input         */
/* ===================== */

#command-input-container {
  padding: 0.5rem 0.75rem;
  background: var(--void-100);
  border-top: 1px solid var(--void-300);
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

#command-input {
  flex: 1;
  padding: 0.75rem 1rem;
  background: var(--void-200);
  border: 1px solid var(--void-300);
  border-radius: 6px;
  color: var(--crt-white);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
}

#command-input:focus {
  border-color: var(--accent);
}

#command-input::placeholder {
  color: var(--crt-white);
  opacity: 0.3;
}

#image-btn,
#send-btn {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s;
  flex-shrink: 0;
}

#image-btn {
  background: var(--void-200);
  border: 1px solid var(--void-300);
  color: var(--crt-white);
  opacity: 0.7;
}

#image-btn:active {
  opacity: 1;
  background: var(--void-300);
}

#image-btn.uploading {
  opacity: 0.5;
  pointer-events: none;
}

#send-btn {
  background: var(--accent);
  color: var(--void);
}

#send-btn:active {
  opacity: 0.8;
}

#image-btn svg,
#send-btn svg {
  width: 20px;
  height: 20px;
}

/* ===================== */
/* Voice Controls        */
/* ===================== */

#voice-controls {
  padding: 1rem;
  background: var(--void-100);
  border-top: 1px solid var(--void-300);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

#mode-toggle {
  display: flex;
  background: var(--void-200);
  border-radius: 6px;
  overflow: hidden;
}

.mode-btn {
  padding: 0.5rem 1.25rem;
  background: none;
  border: none;
  color: var(--crt-white);
  opacity: 0.5;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s;
}

.mode-btn.active {
  background: var(--accent);
  color: var(--void);
  opacity: 1;
}

.voice-button {
  width: 72px;
  height: 72px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  color: var(--void);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: all 0.2s;
  box-shadow: 0 4px 20px rgba(255, 51, 51, 0.3);
}

.voice-button:active {
  transform: scale(0.95);
}

.voice-button.recording {
  background: var(--crt-green);
  animation: recording-pulse 1s ease-in-out infinite;
}

.voice-button.processing {
  background: var(--crt-amber);
  animation: none;
}

@keyframes recording-pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(51, 255, 51, 0.3); }
  50% { box-shadow: 0 4px 40px rgba(51, 255, 51, 0.6); }
}

.voice-button svg {
  width: 32px;
  height: 32px;
}

/* Silence countdown indicator */
.silence-indicator {
  position: absolute;
  width: 80px;
  height: 80px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.silence-indicator circle {
  filter: drop-shadow(0 0 4px rgba(204, 255, 0, 0.6));
}

#voice-status {
  font-size: 0.7rem;
  color: var(--crt-white);
  opacity: 0.5;
}

#transcription-preview {
  font-size: 0.75rem;
  color: var(--crt-green);
  text-align: center;
  max-height: 3rem;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===================== */
/* Overlays              */
/* ===================== */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 5, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.overlay[hidden] {
  display: none;
}

.overlay-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--void-300);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.overlay-text {
  font-size: 0.875rem;
  color: var(--crt-white);
  opacity: 0.7;
}

.btn-secondary {
  padding: 0.75rem 1.5rem;
  background: var(--void-200);
  border: 1px solid var(--void-300);
  border-radius: 6px;
  color: var(--crt-white);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:active {
  background: var(--void-300);
}

/* ===================== */
/* Files Button          */
/* ===================== */

#files-btn {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s;
  flex-shrink: 0;
  background: var(--void-200);
  border: 1px solid var(--void-300);
  color: var(--crt-white);
  opacity: 0.7;
}

#files-btn:active {
  opacity: 1;
  background: var(--void-300);
}

#files-btn.active {
  background: var(--crt-amber);
  color: var(--void);
  opacity: 1;
  border-color: var(--crt-amber);
}

#files-btn svg {
  width: 20px;
  height: 20px;
}

/* ===================== */
/* File Browser          */
/* ===================== */

#file-browser {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#file-browser.hidden {
  display: none;
}

#file-browser-header {
  height: 44px;
  padding: 0 0.5rem;
  background: var(--void-200);
  border-bottom: 1px solid var(--void-300);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

#current-path {
  flex: 1;
  font-size: 0.7rem;
  color: var(--crt-white);
  opacity: 0.7;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 0.5rem;
}

#file-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.file-item {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--void-200);
  gap: 0.75rem;
  cursor: pointer;
  transition: background 0.15s;
}

.file-item:active {
  background: var(--void-200);
}

.file-item.selected {
  background: var(--void-300);
}

.file-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--crt-white);
  opacity: 0.5;
}

.file-icon.folder {
  color: var(--crt-amber);
  opacity: 1;
}

.file-icon.file {
  color: var(--crt-white);
  opacity: 0.6;
}

.file-info {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 0.875rem;
  color: var(--crt-white);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta {
  font-size: 0.65rem;
  color: var(--crt-white);
  opacity: 0.4;
  margin-top: 0.125rem;
}

.file-actions {
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity 0.15s;
}

.file-item:active .file-actions,
.file-item.selected .file-actions {
  opacity: 1;
}

.file-action-btn {
  width: 28px;
  height: 28px;
  background: var(--void-300);
  border: none;
  border-radius: 4px;
  color: var(--crt-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.7;
}

.file-action-btn:active {
  opacity: 1;
}

.file-action-btn.delete {
  color: var(--accent);
}

.file-action-btn svg {
  width: 14px;
  height: 14px;
}

/* Empty state */
.file-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--crt-white);
  opacity: 0.3;
  font-size: 0.875rem;
  padding: 2rem;
  text-align: center;
}

/* ===================== */
/* File Editor           */
/* ===================== */

#file-editor {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#file-editor.hidden {
  display: none;
}

#file-editor-header {
  height: 44px;
  padding: 0 0.5rem;
  background: var(--void-200);
  border-bottom: 1px solid var(--void-300);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

#editor-filename {
  flex: 1;
  font-size: 0.75rem;
  color: var(--crt-white);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 0 0.5rem;
}

#editor-save-btn.btn-save {
  color: var(--crt-green);
  opacity: 0.7;
}

#editor-save-btn.btn-save:active {
  opacity: 1;
}

#editor-save-btn.btn-save.modified {
  color: var(--crt-amber);
  animation: pulse 1s infinite;
}

#file-content {
  flex: 1;
  width: 100%;
  padding: 1rem;
  background: var(--void);
  border: none;
  color: var(--crt-green);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  resize: none;
  outline: none;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

#file-content::placeholder {
  color: var(--crt-white);
  opacity: 0.2;
}

/* ===================== */
/* New File Dialog       */
/* ===================== */

#new-file-dialog {
  position: fixed;
  inset: 0;
  background: rgba(5, 5, 5, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

#new-file-dialog.hidden {
  display: none;
}

.dialog-content {
  width: 90%;
  max-width: 320px;
  background: var(--void-100);
  border: 1px solid var(--void-300);
  border-radius: 8px;
  padding: 1.5rem;
}

.dialog-title {
  font-size: 0.875rem;
  color: var(--crt-white);
  margin-bottom: 1rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.dialog-options {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.dialog-option {
  flex: 1;
  padding: 0.75rem;
  background: var(--void-200);
  border: 1px solid var(--void-300);
  border-radius: 6px;
  color: var(--crt-white);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
}

.dialog-option:active,
.dialog-option.selected {
  background: var(--accent);
  color: var(--void);
  border-color: var(--accent);
}

.dialog-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--void-200);
  border: 1px solid var(--void-300);
  border-radius: 6px;
  color: var(--crt-white);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  outline: none;
  margin-bottom: 1rem;
}

.dialog-input:focus {
  border-color: var(--accent);
}

.dialog-buttons {
  display: flex;
  gap: 0.75rem;
}

.dialog-btn {
  flex: 1;
  padding: 0.75rem;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  text-transform: uppercase;
  transition: opacity 0.15s;
}

.dialog-btn.cancel {
  background: var(--void-200);
  border: 1px solid var(--void-300);
  color: var(--crt-white);
}

.dialog-btn.confirm {
  background: var(--accent);
  border: none;
  color: var(--void);
}

.dialog-btn:active {
  opacity: 0.8;
}

/* ===================== */
/* Safe areas (notch)    */
/* ===================== */

@supports (padding: env(safe-area-inset-top)) {
  #status-bar {
    padding-top: env(safe-area-inset-top);
    height: calc(44px + env(safe-area-inset-top));
  }

  #voice-controls {
    padding-bottom: calc(1rem + env(safe-area-inset-bottom));
  }

  #command-input-container {
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom));
  }
}

/* ===================== */
/* S24 Ultra optimizations */
/* ===================== */

/* S24 Ultra: 3120x1440 at 505ppi = ~412dp width portrait */
@media screen and (min-width: 400px) and (max-width: 450px) {
  #aux-keys {
    gap: 8px;
    padding: 10px 12px;
  }

  .aux-key {
    min-width: 44px;
    height: 38px;
    font-size: 0.8rem;
  }

  .aux-key[data-key="Tab"] {
    min-width: 52px;
  }
}