/*
 * Premium dark-mode styling system for the Softaware Greek Editor Word Add-in.
 * Organized in sections: design tokens → resets → layout →
 * auth shell → token picker → logged-in card → batch/selection panels.
 */

/* ─── Design Tokens ──────────────────────────────────────────────────────── */
:root {
  --bg: hsl(222, 16%, 8%);
  --panel: hsl(222, 16%, 13%);
  --panel-border: rgba(255, 255, 255, 0.07);

  --accent: hsl(255, 68%, 62%);
  --accent-hover: hsl(255, 75%, 68%);
  --accent-dim: rgba(99, 80, 220, 0.14);

  --success: hsl(145, 58%, 44%);
  --success-hover: hsl(145, 65%, 50%);
  --danger: hsl(358, 65%, 54%);
  --danger-hover: hsl(358, 70%, 60%);

  --teal: hsl(180, 60%, 44%);
  --green: hsl(145, 58%, 44%);
  --indigo: hsl(240, 60%, 60%);

  --text: hsl(0, 0%, 95%);
  --text-muted: hsl(222, 12%, 62%);
  --text-inv: hsl(222, 16%, 8%);

  --warn-bg: rgba(245, 158, 11, 0.13);
  --warn-border: rgba(245, 158, 11, 0.28);
  --warn-text: hsl(38, 90%, 60%);

  --radius: 12px;
  --radius-sm: 7px;
  --speed: 0.22s;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html, body {
  width: 100%; height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: hsl(222, 16%, 22%); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ─── App Header ─────────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 13px 18px;
  border-bottom: 1px solid var(--panel-border);
  background: linear-gradient(180deg, hsl(222, 16%, 11%) 0%, var(--bg) 100%);
  flex-shrink: 0;
}

.header-logo-container { display: flex; align-items: center; gap: 9px; }

#header-logo {
  object-fit: contain;
  transition: transform var(--speed) ease;
}
#header-logo:hover { transform: rotate(6deg) scale(1.08); }

.app-title { font-size: 14px; font-weight: 600; letter-spacing: -0.2px; }

.lang-btn {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--panel-border);
  color: var(--text-muted);
  padding: 5px 11px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--speed) ease;
}
.lang-btn:hover { background: var(--accent); color: var(--text-inv); border-color: var(--accent); }

/* ─── Nav Tabs ───────────────────────────────────────────────────────────── */
.nav-tabs {
  display: flex;
  border-bottom: 1px solid var(--panel-border);
  background: hsl(222, 16%, 10%);
  padding: 0 8px;
  flex-shrink: 0;
}

.tab-link {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 11px 4px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--speed) ease;
  white-space: nowrap;
}
.tab-link:hover { color: var(--text); }
.tab-link.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ─── Main / Tab Panels ──────────────────────────────────────────────────── */
.main-content {
  padding: 18px;
  overflow-y: auto;
  height: calc(100vh - 96px); /* header + nav */
}

.tab-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: fadeUp var(--speed) ease;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(5px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Auth Shell (all 4 states share this wrapper) ───────────────────────── */
.auth-shell {
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: fadeUp var(--speed) ease;
}

/* Decorative graphic strip at top of each auth state */
.auth-graphic {
  width: 100%;
  height: 4px;
  border-radius: 2px;
  margin-bottom: 2px;
}
.auth-graphic--indigo { background: linear-gradient(90deg, var(--indigo), var(--accent)); }
.auth-graphic--teal   { background: linear-gradient(90deg, var(--teal), var(--green)); }
.auth-graphic--green  { background: linear-gradient(90deg, var(--green), hsl(165,60%,44%)); }

.auth-title    { font-size: 15px; font-weight: 700; }
.auth-subtitle { font-size: 12px; color: var(--text-muted); line-height: 1.45; }

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

/* ─── Forms ──────────────────────────────────────────────────────────────── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 11.5px; color: var(--text-muted); font-weight: 500; }

.form-input, .form-select {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  transition: border-color var(--speed), box-shadow var(--speed);
}
.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 80, 220, 0.18);
}

/* OTP input: large, centred digit display */
.otp-input {
  font-size: 22px;
  letter-spacing: 6px;
  text-align: center;
  font-weight: 600;
  padding: 10px 14px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 15px;
  padding-right: 32px;
}

/* ─── Trust-device toggle ────────────────────────────────────────────────── */
.trust-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.toggle-track {
  position: relative;
  width: 34px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}
.toggle-input {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
}
.toggle-knob {
  position: absolute;
  inset: 0;
  background: hsl(222, 16%, 25%);
  border-radius: 10px;
  transition: background var(--speed) ease;
}
.toggle-knob::after {
  content: "";
  position: absolute;
  left: 3px; top: 3px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: white;
  transition: transform var(--speed) ease;
}
.toggle-input:checked ~ .toggle-knob { background: var(--accent); }
.toggle-input:checked ~ .toggle-knob::after { transform: translateX(14px); }

.trust-label-group { display: flex; flex-direction: column; gap: 2px; }
.trust-label { font-size: 12.5px; font-weight: 500; }
.trust-hint  { font-size: 11px; color: var(--text-muted); line-height: 1.4; }

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  width: 100%;
  padding: 10px 14px;
  font-size: 12.5px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  transition: all var(--speed) ease;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; pointer-events: none; }

.btn-primary { background: var(--accent); color: var(--text-inv); }
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 4px 14px rgba(99,80,220,.3); }

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-secondary:hover { background: var(--accent-dim); }

.btn-success { background: var(--success); color: var(--text-inv); }
.btn-success:hover { background: var(--success-hover); box-shadow: 0 4px 14px rgba(34,197,94,.25); }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: var(--danger-hover); box-shadow: 0 4px 14px rgba(220,38,38,.25); }

.btn-text { background: transparent; color: var(--text-muted); font-weight: 500; }
.btn-text:hover { color: var(--text); background: rgba(255,255,255,.04); }

.back-btn { font-size: 11.5px; margin-top: -4px; }

.text-btn {
  background: none; border: none;
  color: var(--accent); font-size: 11px; font-weight: 500;
  cursor: pointer; transition: color var(--speed);
}
.text-btn:hover { color: var(--accent-hover); text-decoration: underline; }

.auth-actions { display: flex; flex-direction: column; gap: 8px; margin-top: 4px; }

/* ─── Token Picker ───────────────────────────────────────────────────────── */
.token-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 340px;
  overflow-y: auto;
  padding-right: 2px;
}

.token-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  transition: border-color var(--speed), box-shadow var(--speed);
  cursor: default;
}
.token-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.token-card-info { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.token-card-alias {
  font-size: 13px; font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.token-card-meta { font-size: 11px; color: var(--text-muted); }
.token-card-plan {
  display: inline-block;
  background: var(--accent-dim);
  color: var(--accent-hover);
  border: 1px solid rgba(99,80,220,.2);
  border-radius: 4px;
  padding: 1px 7px;
  font-size: 10.5px;
  font-weight: 600;
  margin-right: 4px;
}

.token-card-btn {
  flex-shrink: 0;
  background: var(--accent);
  color: var(--text-inv);
  border: none;
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--speed) ease;
  white-space: nowrap;
}
.token-card-btn:hover { background: var(--accent-hover); }

/* ─── Logged-in summary ──────────────────────────────────────────────────── */
.loggedin-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.loggedin-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.loggedin-info { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.loggedin-name  { font-size: 13px; font-weight: 600; }
.loggedin-email { font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.loggedin-token-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 2px;
}

.token-alias-badge {
  background: var(--accent-dim);
  color: var(--accent-hover);
  border: 1px solid rgba(99,80,220,.25);
  border-radius: 5px;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 600;
  max-width: 140px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─── Shared Utilities ───────────────────────────────────────────────────── */
.section-title { font-size: 13.5px; font-weight: 600; }
.section-header { display: flex; justify-content: space-between; align-items: center; }

.form-group.margin-top-md { margin-top: 6px; }

.rules-selection-helpers { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--text-muted); }
.divider { opacity: 0.3; }

/* Rules checklist */
.rules-list {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  max-height: 186px;
  overflow-y: auto;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rule-item {
  display: flex; align-items: flex-start; gap: 9px;
  padding: 7px 9px; border-radius: 6px; cursor: pointer;
  transition: background var(--speed);
}
.rule-item:hover { background: rgba(255,255,255,.03); }

.checkbox-container { position: relative; width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; }
.checkbox-container input { position: absolute; opacity: 0; cursor: pointer; height: 0; width: 0; }
.checkbox-checkmark {
  position: absolute; inset: 0;
  border: 1px solid var(--text-muted);
  border-radius: 4px;
  transition: all var(--speed);
}
.checkbox-container input:checked ~ .checkbox-checkmark {
  background: var(--accent); border-color: var(--accent);
}
.checkbox-checkmark::after {
  content: "";
  position: absolute;
  display: none;
  left: 5px; top: 2px;
  width: 4px; height: 8px;
  border: solid var(--text-inv); border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.checkbox-container input:checked ~ .checkbox-checkmark::after { display: block; }

.rule-details { display: flex; flex-direction: column; gap: 1px; }
.rule-name { font-size: 12px; font-weight: 500; }
.rule-desc { font-size: 10.5px; color: var(--text-muted); }

/* Warning banner */
.warning-banner {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  color: var(--warn-text);
  padding: 11px 14px;
  border-radius: var(--radius);
  font-size: 12px;
  line-height: 1.5;
  text-align: center;
}

/* Status messages */
.status-msg {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  line-height: 1.4;
  word-break: break-word;
}
.status-msg.success {
  background: rgba(34,197,94,.1); border: 1px solid rgba(34,197,94,.25); color: var(--success-hover);
}
.status-msg.error {
  background: rgba(220,38,38,.1); border: 1px solid rgba(220,38,38,.25); color: hsl(358,80%,68%);
}

/* Progress bar */
.progress-container { display: flex; flex-direction: column; gap: 5px; margin-top: 6px; }
.progress-bar {
  width: 100%; height: 3px;
  background: rgba(255,255,255,.05);
  border-radius: 2px; overflow: hidden; position: relative;
}
.progress-fill {
  height: 100%; background: var(--accent); width: 0%;
  transition: width 0.35s ease;
}
.progress-fill.indeterminate {
  width: 30%; position: absolute; left: -30%;
  animation: indeterminate 1.4s infinite linear;
}
@keyframes indeterminate { 0% { left: -30%; } 100% { left: 105%; } }

.progress-status { font-size: 11px; color: var(--text-muted); text-align: center; }

/* Prompt & Suggestion card */
.prompt-msg {
  font-size: 12px; color: var(--text-muted); text-align: center;
  padding: 36px 18px;
  border: 1px dashed var(--panel-border);
  border-radius: var(--radius);
}

.suggestion-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex; flex-direction: column; gap: 10px;
  box-shadow: 0 4px 18px rgba(0,0,0,.22);
  animation: fadeUp var(--speed) ease-out;
}

.card-field { display: flex; flex-direction: column; gap: 4px; }
.field-label { font-size: 10.5px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); font-weight: 600; }
.field-value {
  font-size: 13px; padding: 7px 10px;
  border-radius: 5px; background: rgba(0,0,0,.14);
  line-height: 1.45; white-space: pre-wrap;
}
.field-value.original  { border-left: 3px solid hsl(358,55%,50%); background: rgba(220,38,38,.05); }
.field-value.suggested { border-left: 3px solid var(--success); background: rgba(34,197,94,.05); font-weight: 500; }

.rule-badge {
  font-size: 10.5px;
  background: var(--accent-dim);
  color: var(--accent-hover);
  padding: 3px 7px; border-radius: 4px;
  border: 1px solid rgba(99,80,220,.2);
  font-weight: 500; width: fit-content;
}

.card-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 4px; }
.card-actions .btn { width: auto; padding: 7px 14px; font-size: 11.5px; }

/* Loading overlay */
.overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  backdrop-filter: blur(4px);
  display: flex; justify-content: center; align-items: center;
  z-index: 100;
}
.spinner {
  width: 30px; height: 30px;
  border: 3px solid rgba(255,255,255,.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.text-muted { color: var(--text-muted); }