/* Logs Formatter — style.css
   Sage green theme · Mobile-first · DM Sans + Open Sans */

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

:root {
  --sage: #4A9B7F;
  --sage-light: #5FB899;
  --sage-dark: #3A7D65;
  --bg: #0F1419;
  --bg-card: #1A2332;
  --bg-input: #0A0E13;
  --border: #2A3441;
  --text: #D1D5DB;
  --text-muted: #8B95A1;
  --text-dim: #5F6B7A;
  --white: #FFFFFF;
  --error: #EF4444;
  --radius: 10px;
  --font-head: 'DM Sans', system-ui, sans-serif;
  --font-body: 'Open Sans', system-ui, sans-serif;
  --font-mono: 'Courier Prime', monospace;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ─────────────────────────────────── */

.app {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ── Header ─────────────────────────────────── */

.header { margin-bottom: 16px; }

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

.header h1 {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  color: var(--sage-light);
}

.help-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.help-btn:hover {
  border-color: var(--sage);
  color: var(--sage-light);
}

.privacy-badge {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
  letter-spacing: 0.02em;
}

/* ── Toolbar ────────────────────────────────── */

.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  flex-wrap: wrap;
}

/* ── Toggle Switch ──────────────────────────── */

.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}

.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

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

.track {
  position: absolute;
  inset: 0;
  background: rgba(74, 155, 127, 0.15);
  border: 1px solid rgba(74, 155, 127, 0.3);
  border-radius: 22px;
  transition: background 0.2s, border-color 0.2s;
  cursor: pointer;
}

.track::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  top: 2px;
  background: var(--sage);
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle input:checked + .track {
  background: var(--sage);
  border-color: var(--sage);
}

.toggle input:checked + .track::before {
  background: var(--white);
  transform: translateX(18px);
}

.toggle input:disabled + .track {
  opacity: 0.4;
  cursor: not-allowed;
}

.separator-select {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
}

.separator-select:focus {
  outline: none;
  border-color: var(--sage);
}

/* ── Workspace ──────────────────────────────── */

.workspace {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

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

.panel-label {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.counter {
  font-size: 11px;
  color: var(--text-dim);
}

/* ── Inputs ─────────────────────────────────── */

textarea,
input[type="text"] {
  width: 100%;
  padding: 12px;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
  transition: border-color 0.2s;
}

textarea:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--sage);
}

textarea::placeholder,
input::placeholder {
  color: var(--text-dim);
  font-style: italic;
}

textarea#input,
textarea#output {
  height: 180px;
}

/* ── Drop Zone ──────────────────────────────── */

.drop-zone {
  position: relative;
}

.drop-zone textarea {
  width: 100%;
}

.drop-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(74, 155, 127, 0.12);
  border: 2px dashed var(--sage);
  border-radius: var(--radius);
  color: var(--sage-light);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  place-items: center;
  pointer-events: none;
  z-index: 2;
}

.drop-zone.dragging .drop-overlay {
  display: grid;
}

/* ── Action Buttons ─────────────────────────── */

.actions {
  display: flex;
  gap: 8px;
}

.btn {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  min-height: 44px;
  touch-action: manipulation;
}

.btn:hover { border-color: var(--sage); }
.btn:active { background: rgba(74, 155, 127, 0.1); }

.btn-primary {
  background: var(--sage);
  border-color: var(--sage);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--sage-light);
  border-color: var(--sage-light);
}

.btn-sm {
  flex: none;
  padding: 8px 16px;
  font-size: 12px;
  min-height: 36px;
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

/* ── Output Tools ───────────────────────────── */

.output-tools {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.toggle-sm span { font-size: 12px; }

.social-row {
  display: flex;
  gap: 6px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  font-size: 14px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  display: grid;
  place-items: center;
  touch-action: manipulation;
}

.btn-icon:hover:not(:disabled) {
  border-color: var(--sage);
  background: rgba(74, 155, 127, 0.1);
}

.btn-icon:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-icon.active {
  background: var(--sage);
  border-color: var(--sage);
}

/* ── Settings (collapsible) ─────────────────── */

.settings {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.settings summary {
  padding: 12px 16px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  list-style: none;
}

.settings summary::-webkit-details-marker { display: none; }

.settings summary::after {
  content: '▸';
  float: right;
  transition: transform 0.2s;
}

.settings[open] summary::after {
  transform: rotate(90deg);
}

.settings-body {
  padding: 0 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.setting-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.setting-actions {
  display: flex;
  gap: 8px;
}

.prefix-current {
  font-size: 11px;
  color: var(--text-dim);
}

.prefix-current span {
  color: var(--sage-light);
  font-family: var(--font-mono);
}

textarea#formatInput {
  height: auto;
  min-height: 60px;
}

input#prefixInput {
  padding: 10px 12px;
}

/* ── Footer ─────────────────────────────────── */

.footer {
  margin-top: auto;
  text-align: center;
  padding: 20px 0 8px;
  font-size: 12px;
  color: var(--text-dim);
}

.footer a {
  color: var(--sage-light);
  text-decoration: none;
}

.footer a:hover { text-decoration: underline; }

/* ── Toast ──────────────────────────────────── */

.toast {
  position: fixed;
  top: 16px;
  right: 16px;
  padding: 12px 20px;
  border-radius: 8px;
  background: var(--sage);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  transform: translateX(calc(100% + 20px));
  transition: transform 0.3s ease;
  z-index: 1000;
}

.toast.show { transform: translateX(0); }

/* ── Help Dialog ────────────────────────────── */

dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 480px;
  width: calc(100% - 32px);
  max-height: 80vh;
  overflow-y: auto;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0;
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.dialog-content { padding: 24px; }

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.dialog-header h2 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--sage-light);
}

.close-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.close-btn:hover {
  border-color: var(--sage);
  color: var(--text);
}

.help-steps {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.help-steps li {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
}

.help-steps li strong { color: var(--text); }

.help-features h3 {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  color: var(--sage-light);
  margin: 14px 0 6px;
}

.help-features p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.help-features kbd {
  display: inline-block;
  padding: 2px 7px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text);
}

.help-privacy {
  margin-top: 16px;
  padding: 10px 14px;
  background: rgba(74, 155, 127, 0.08);
  border: 1px solid rgba(74, 155, 127, 0.2);
  border-radius: 8px;
  font-size: 12px;
  color: var(--sage-light);
}

/* ── Desktop: side-by-side ──────────────────── */

@media (min-width: 768px) {
  .app { padding: 24px; }

  .header h1 { font-size: 26px; }

  .workspace {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr auto;
    gap: 16px;
  }

  .workspace .panel:first-child { grid-column: 1; grid-row: 1; }
  .workspace .panel:last-child  { grid-column: 2; grid-row: 1; }
  .actions { grid-column: 1 / -1; grid-row: 2; justify-content: center; }
  .actions .btn { flex: none; min-width: 120px; }

  textarea#input,
  textarea#output { height: 320px; }
}