/* ─── Design System Tokens ───────────────────────────────────────────────────── */
:root {
  --primary:                   #002d62;
  --primary-container:         #1a4480;
  --on-primary:                #ffffff;
  --secondary:                 #006d40;
  --secondary-container:       #8ef5b5;
  --on-secondary-container:    #007243;
  --error:                     #ba1a1a;
  --on-error:                  #ffffff;

  --background:                #f7f9fc;
  --surface:                   #f7f9fc;
  --surface-container-lowest:  #ffffff;
  --surface-container-low:     #f2f4f7;
  --surface-container:         #eceef1;
  --surface-container-high:    #e6e8eb;
  --surface-container-highest: #e0e3e6;
  --surface-dim:               #d8dadd;

  --on-surface:                #191c1e;
  --on-surface-variant:        #434750;
  --outline:                   #737781;
  --outline-variant:           #c3c6d1;
}

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

/* ─── Page ───────────────────────────────────────────────────────────────────── */
html, body {
  min-height: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  background: var(--background);
  color: var(--on-surface);
  line-height: 1.5;
  padding: 2rem 1rem;
}

/* ─── App Card ───────────────────────────────────────────────────────────────── */
#app {
  max-width: 520px;
  margin: 0 auto;
  background: var(--surface-container-lowest);
  border-radius: 1.5rem;
  box-shadow: 0 8px 32px rgba(0, 45, 98, 0.08);
  overflow: hidden;
}

/* ─── Header ─────────────────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 1.5rem 1.5rem 1.25rem;
  border-bottom: 1px solid var(--outline-variant);
}

.app-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  flex-shrink: 0;
}

.app-header h1 {
  font-family: 'Manrope', 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  color: var(--primary-container);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

/* ─── Inner content area ─────────────────────────────────────────────────────── */
.app-body {
  padding: 1.25rem 1.5rem 1.5rem;
}

/* ─── Auth Bar ───────────────────────────────────────────────────────────────── */
.auth-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.875rem;
  gap: 0.5rem;
}

.plan-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.plan-free {
  background: var(--surface-container);
  color: var(--outline);
  border: 1px solid var(--outline-variant);
}

.plan-paid {
  background: #ebf8f0;
  color: #2f855a;
  border: 1px solid #9ae6b4;
}

.free-tier-hint {
  font-size: 0.75rem;
  color: var(--outline);
  text-align: center;
  margin-bottom: 0.75rem;
}

.free-tier-hint a {
  color: inherit;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
}

.btn-logout {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--outline-variant);
  border-radius: 0.375rem;
  padding: 3px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}

.btn-logout:hover {
  background: var(--surface-container-lowest);
  color: var(--error);
  border-color: #fed7d7;
}

/* ─── Auth Tabs ──────────────────────────────────────────────────────────────── */
.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--outline-variant);
  margin-bottom: 1rem;
}

.auth-tab {
  flex: 1;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 0.625rem 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--outline);
  cursor: pointer;
  font-family: inherit;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}

.auth-tab:hover { color: var(--primary-container); }

.auth-tab.active {
  color: var(--primary-container);
  border-bottom-color: var(--primary-container);
}

/* ─── Forms ──────────────────────────────────────────────────────────────────── */
.form-field { margin-bottom: 0.75rem; }

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 0.25rem;
}

.form-input {
  width: 100%;
  padding: 0.5625rem 0.75rem;
  border: 1px solid var(--outline-variant);
  border-radius: 0.5rem;
  background: var(--surface-container-lowest);
  font-size: 0.875rem;
  color: var(--on-surface);
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.form-input:focus {
  border-color: var(--primary-container);
  box-shadow: 0 0 0 3px rgba(0, 45, 98, 0.1);
}

textarea.form-input {
  resize: vertical;
  min-height: 80px;
  font-size: 0.8125rem;
}

.field-error {
  font-size: 0.75rem;
  color: var(--error);
  margin-top: 0.25rem;
}

.auth-error {
  background: #fff5f5;
  border: 1px solid #fed7d7;
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  color: var(--error);
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.auth-footer-note {
  font-size: 0.8125rem;
  color: var(--outline);
  text-align: center;
  margin-top: 1rem;
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  color: var(--primary-container);
  font-weight: 600;
  font-size: inherit;
  font-family: inherit;
  cursor: pointer;
}

.link-btn:hover { text-decoration: underline; }

/* ─── Forgot Password ────────────────────────────────────────────────────────── */
.forgot-password-row {
  text-align: center;
  margin-top: 0.25rem;
}

.forgot-password-link {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--outline);
}

.forgot-password-link:hover { color: var(--primary-container); }

/* ─── Modal ──────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-overlay.hidden { display: none; }

.modal-card {
  background: var(--surface);
  border-radius: 16px;
  padding: 1.75rem 1.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
}

.modal-title {
  font-family: 'Manrope', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 0 0.25rem;
  color: var(--on-surface);
}

.modal-desc {
  font-size: 0.875rem;
  color: var(--outline);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.forgot-sent-icon {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 0.75rem;
}

/* ─── Auth Loading ───────────────────────────────────────────────────────────── */
.auth-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 0 2rem;
  gap: 0.75rem;
}

.auth-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--surface-container);
  border-top-color: var(--primary-container);
  border-radius: 50%;
  animation: auth-spin 0.7s linear infinite;
}

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

.auth-loading-text {
  font-size: 0.875rem;
  color: var(--outline);
}

/* ─── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5625rem 1.25rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  transition: all 0.15s ease;
  text-align: center;
  letter-spacing: 0.01em;
}

.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, #002d62 0%, #1a4480 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 45, 98, 0.25);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(0, 45, 98, 0.35);
}

.btn-secondary {
  background: var(--surface-container-lowest);
  color: var(--on-surface-variant);
  border: 1px solid var(--outline-variant);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-container-low);
  border-color: var(--outline);
}

.btn-danger {
  background: linear-gradient(135deg, #e53e3e 0%, #c53030 100%);
  color: #fff;
  box-shadow: 0 2px 6px rgba(197, 48, 48, 0.3);
}

.btn-success {
  background: linear-gradient(135deg, var(--secondary) 0%, #004d2e 100%);
  color: #fff;
  box-shadow: 0 2px 6px rgba(0, 109, 64, 0.3);
}

.btn-upgrade {
  background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
  color: #fff;
  box-shadow: 0 2px 6px rgba(221, 107, 32, 0.35);
}

.btn-upgrade:hover:not(:disabled) {
  box-shadow: 0 4px 12px rgba(221, 107, 32, 0.45);
}

.btn-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.875rem;
}

.btn-back-link {
  background: none;
  border: none;
  padding: 0;
  margin-bottom: 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-container);
  cursor: pointer;
  font-family: inherit;
  display: inline-block;
  opacity: 0.8;
}

.btn-back-link:hover { opacity: 1; text-decoration: underline; }

.btn-template-link {
  background: none;
  border: none;
  padding: 0;
  margin-top: 0.25rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--primary-container);
  cursor: pointer;
  font-family: inherit;
  display: block;
  opacity: 0.8;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.btn-template-link::before {
  content: "⬇ ";
}

.btn-template-link:hover { opacity: 1; }

/* ─── Mode Picker ────────────────────────────────────────────────────────────── */
.mode-cards {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.mode-card {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  width: 100%;
  background: var(--surface-container-lowest);
  border: 1.5px solid var(--outline-variant);
  border-radius: 0.75rem;
  padding: 0.875rem 1rem;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  font-family: inherit;
}

.mode-card:hover {
  border-color: var(--primary-container);
  box-shadow: 0 2px 12px rgba(0, 45, 98, 0.1);
  background: var(--surface-container-low);
}

.mode-card:active { transform: scale(0.98); }

.mode-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #002d62 0%, #1a4480 100%);
  border-radius: 0.625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0, 45, 98, 0.25);
}

.mode-icon svg {
  width: 20px;
  height: 20px;
  stroke: #fff;
}

.mode-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: 3px;
}

.mode-desc {
  display: block;
  font-size: 0.8125rem;
  color: var(--outline);
  line-height: 1.4;
}

/* ─── Hint / small text ──────────────────────────────────────────────────────── */
.hint {
  font-size: 0.8125rem;
  color: var(--outline);
  line-height: 1.6;
  margin-bottom: 0.875rem;
}

.hint strong { color: var(--on-surface-variant); }

/* ─── File Input ─────────────────────────────────────────────────────────────── */
input[type="file"] { display: none; }

.file-label {
  display: inline-block;
  cursor: pointer;
  margin-bottom: 0.75rem;
}

/* ─── File Info Card ─────────────────────────────────────────────────────────── */
.file-name-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.file-icon { font-size: 1.25rem; flex-shrink: 0; }

.file-name {
  font-size: 0.8125rem;
  color: var(--on-surface);
  font-weight: 500;
  word-break: break-all;
  flex: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  background: #ebf4ff;
  color: var(--primary-container);
  border-radius: 9999px;
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  border: 1px solid #bee3f8;
  flex-shrink: 0;
}

/* ─── Preview Table ──────────────────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--outline-variant);
  border-radius: 0.625rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

.preview-table th {
  background: var(--primary-container);
  color: #fff;
  padding: 0.5rem 0.75rem;
  text-align: left;
  position: sticky;
  top: 0;
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.preview-table td {
  padding: 0.4375rem 0.75rem;
  border-bottom: 1px solid var(--surface-container-high);
  color: var(--on-surface);
}

.preview-table tr:last-child td { border-bottom: none; }
.preview-table tr:nth-child(even) td { background: var(--surface-container-low); }
.preview-table tr:hover td { background: var(--surface-container); }

/* ─── Progress ───────────────────────────────────────────────────────────────── */
.progress-wrap {
  background: var(--surface-container);
  border-radius: 9999px;
  height: 8px;
  overflow: hidden;
  margin-bottom: 0.625rem;
}

#progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-container) 0%, var(--secondary) 100%);
  width: 0%;
  transition: width 0.35s ease;
  border-radius: 9999px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.375rem;
}

.progress-text {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--primary-container);
}

.progress-pct {
  font-size: 0.8125rem;
  color: var(--outline);
  font-weight: 600;
}

.current-player {
  font-size: 0.8125rem;
  color: var(--outline);
  font-style: italic;
  text-align: center;
  margin-bottom: 0.875rem;
  min-height: 20px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.error-log {
  max-height: 90px;
  overflow-y: auto;
  margin-bottom: 0.75rem;
  border-radius: 0.5rem;
  background: #fff5f5;
  border: 1px solid #fed7d7;
}

.error-line {
  font-size: 0.75rem;
  color: var(--error);
  padding: 4px 10px;
  border-bottom: 1px solid #fed7d7;
}

.error-line:last-child { border-bottom: none; }

/* ─── Done ───────────────────────────────────────────────────────────────────── */
.done-card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: 1rem;
  padding: 1.5rem 1.25rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  margin-bottom: 0.25rem;
}

.done-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--secondary) 0%, #004d2e 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.875rem;
  box-shadow: 0 4px 12px rgba(0, 109, 64, 0.3);
}

.done-icon svg {
  width: 26px;
  height: 26px;
  stroke: #fff;
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.done-title {
  font-family: 'Manrope', 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  color: var(--on-surface);
  margin-bottom: 0.375rem;
}

.done-summary {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

.stat-pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.75rem;
  margin: 2px 2px;
}

.stat-error   { background: #fff5f5; color: #c53030; border: 1px solid #fed7d7; }
.stat-multiple { background: #fffaf0; color: #c05621; border: 1px solid #fbd38d; }
.stat-notfound { background: var(--surface-container-low); color: var(--outline); border: 1px solid var(--outline-variant); }
.stat-flagged  { background: #fffaf0; color: #c05621; border: 1px solid #fbd38d; }

/* ─── Upgrade Banner ─────────────────────────────────────────────────────────── */
.upgrade-banner {
  background: #fffdf5;
  border: 1.5px solid #f6ad55;
  border-radius: 0.75rem;
  padding: 1rem 1.125rem;
  margin-bottom: 0.875rem;
  text-align: center;
}

.upgrade-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #744210;
  margin-bottom: 0.3125rem;
  line-height: 1.4;
}

.upgrade-desc {
  font-size: 0.8125rem;
  color: #975a16;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.upgrade-success-banner {
  background: #f0fff4;
  border: 1px solid #9ae6b4;
  border-radius: 0.5rem;
  color: #276749;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.625rem 0.875rem;
  margin-bottom: 0.75rem;
  text-align: center;
  line-height: 1.4;
}

.upgrade-nudge {
  background: #fffdf5;
  border: 1px solid #f6ad55;
  border-radius: 0.625rem;
  padding: 0.75rem;
  margin-top: 0.75rem;
  text-align: center;
  font-size: 0.8125rem;
  color: #744210;
}

/* ─── Free Tier Notice ───────────────────────────────────────────────────────── */
.free-tier-notice {
  background: #fffaf0;
  border: 1px solid #fbd38d;
  border-radius: 0.5rem;
  color: #7b4f00;
  font-size: 0.8125rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

/* ─── TTA Cookie Setup ───────────────────────────────────────────────────────── */
.cookie-steps {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.cookie-step {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  background: var(--surface-container-low);
  border: 1px solid var(--outline-variant);
  border-radius: 0.625rem;
  padding: 0.75rem;
}

.step-num {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #002d62 0%, #1a4480 100%);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.step-body {
  flex: 1;
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
}

.step-body strong {
  display: block;
  color: var(--on-surface);
  font-weight: 600;
  margin-bottom: 2px;
}

.step-body code {
  background: var(--surface-container);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 0.75rem;
  color: var(--primary-container);
}

.privacy-note {
  font-size: 0.75rem;
  color: var(--outline);
  text-align: center;
  margin-top: 0.5rem;
  line-height: 1.4;
}

/* ─── Nav Warning ────────────────────────────────────────────────────────────── */
.nav-warning {
  background: #fff7e6;
  border: 1px solid #f6ad55;
  border-radius: 0.5rem;
  color: #7b4f00;
  font-size: 0.8125rem;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.875rem;
  line-height: 1.4;
}

/* ─── Footer ─────────────────────────────────────────────────────────────────── */
.app-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 0.875rem 1.5rem;
  border-top: 1px solid var(--outline-variant);
  font-size: 0.6875rem;
  color: var(--outline);
}

.footer-website {
  color: var(--outline);
  text-decoration: none;
  font-weight: 500;
}

.footer-website:hover { color: var(--primary-container); }

.footer-disclaimer {
  font-size: 0.625rem;
  color: var(--surface-dim);
}

/* ─── Utility ────────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 560px) {
  body { padding: 0; }

  #app {
    border-radius: 0;
    box-shadow: none;
    min-height: 100vh;
  }
}