/* ============================================================
   MAGAZINE — Components v2.2
   Editorial quotes, understated forms, typographic components
   ============================================================ */

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 22px;
  font-size: 0.78rem; font-weight: 700; cursor: pointer;
  border: none; transition: all var(--dur-fast);
  font-family: var(--font-body);
  letter-spacing: 0.06em;
}
.btn { transition: all var(--dur-fast) var(--ease-out); }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: scale(0.97) translateY(0); }

.btn-primary {
  background: var(--rust);
  color: #fff;
}
.btn-primary:hover { background: var(--rust-deep); }

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--border-heavy);
}
.btn-secondary:hover {
  border-color: var(--rust);
  color: var(--rust);
}

.btn-danger {
  color: var(--error); background: transparent;
  border: 2px solid transparent;
  font-size: 0.72rem;
}
.btn-danger:hover {
  background: var(--error); color: #fff;
  border-color: var(--error);
}

.btn-ghost {
  background: transparent; color: var(--ink-soft);
}
.btn-ghost:hover { color: var(--rust); }

.btn-block { width: 100%; }
.btn-sm { padding: 5px 12px; font-size: 0.68rem; }
.btn-lg { padding: 14px 32px; font-size: 0.9rem; }

/* ── Form ── */
.form-group { margin-bottom: 22px; }
.form-label {
  display: block; font-size: 0.68rem; font-weight: 700;
  color: var(--ink-muted); margin-bottom: 6px;
  letter-spacing: 0.1em; text-transform: uppercase;
}
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 11px 14px;
  background: var(--ivory);
  border: 2px solid var(--border);
  color: var(--ink);
  font-size: 0.9rem; font-family: var(--font-body);
  transition: border-color var(--dur-fast);
  outline: none; line-height: 1.6;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--rust);
}
.form-input::placeholder { color: var(--ink-faint); }
.form-textarea { resize: vertical; min-height: 80px; }
.form-select {
  cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%238B7E6C' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
  padding-right: 34px;
}

/* ── Cards — used sparingly, border-based ── */
.card {
  background: var(--ivory);
  border: 1px solid var(--border);
  padding: 32px;
}
.card-header {
  font-family: var(--font-display);
  font-size: 1.25rem; font-weight: 700;
  margin-bottom: 20px; color: var(--ink);
  letter-spacing: -0.01em;
}
.card-accent {
  border-left: 4px solid var(--rust);
}

/* ── Metrics — horizontal stat ribbon ── */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--border);
  margin: 48px 0;
}
.metric-card {
  padding: 28px 20px; text-align: left;
  border-right: 1px solid var(--border);
}
.metric-card:last-child { border-right: none; }
.metric-card .metric-value {
  font-family: var(--font-display);
  font-size: 3.2rem; font-weight: 700;
  color: var(--forest);
  line-height: 1;
  font-style: italic;
}
.metric-card .metric-label {
  font-size: 0.68rem; color: var(--ink-muted);
  margin-top: 8px; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
}

/* ── Chat messages — editorial quotes, NOT bubbles ── */
.chat-message {
  margin-bottom: 28px;
  line-height: 1.85;
  font-size: 0.95rem;
  max-width: 85%;
  position: relative;
  transition: padding 0.35s var(--ease-out);
}
/* Typographic variety: user vs assistant voice */
.chat-user .msg-text {
  font-weight: 500;
  color: var(--ink);
}
.chat-assistant .msg-text {
  font-weight: 400;
  color: var(--ink-soft);
}
@keyframes msgEnter {
  from { opacity: 0; transform: translateY(16px) scale(0.97); }
}
/* Spring variant — bouncier entrance */
@keyframes msgEnterSpring {
  0%   { opacity: 0; transform: translateY(20px) scale(0.95); }
  60%  { opacity: 1; transform: translateY(-3px) scale(1.01); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.chat-user {
  padding: 0 0 0 20px;
  border-left: 3px solid var(--rust);
  margin-left: auto;
  margin-right: 0;
  animation: msgEnterSpring 0.45s var(--ease-out-expo) both;
}
.chat-user:hover {
  padding-left: 24px;
}
.chat-assistant {
  padding: 12px 0 12px 20px;
  border-left: 3px solid var(--forest);
  background: transparent;
  margin-left: 0;
  margin-right: auto;
  animation: msgEnterSpring 0.45s var(--ease-out-expo) both;
}
.chat-assistant:hover {
  padding-left: 24px;
  border-left-color: var(--rust);
}
.chat-sources {
  margin-top: 10px; padding: 8px 14px;
  background: var(--ivory-deep);
  font-size: 0.75rem; color: var(--ink-muted);
  border-left: 3px solid var(--rust);
  font-style: italic;
  animation: srcReveal 0.3s var(--ease-out-expo) both;
}
@keyframes srcReveal {
  from { opacity: 0; transform: translateX(-6px); }
}

/* Typing indicator */
.typing-dots {
  display: flex; gap: 3px; padding: 4px 0;
}
.typing-dots span {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--forest);
  animation: dotBreathe 1.2s infinite ease-in-out both;
}
.typing-dots span:nth-child(1) { animation-delay: -0.24s; }
.typing-dots span:nth-child(2) { animation-delay: -0.12s; }
@keyframes dotBreathe {
  0%, 80%, 100% { transform: scale(0.5); opacity: 0.3; }
  40% { transform: scale(1); opacity: 1; }
}

/* ── Badges — understated ── */
.badge {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 2px 10px;
  font-size: 0.63rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.badge-success { background: var(--success-dim); color: var(--success); }
.badge-warning { background: var(--warning-dim); color: #8B5E0A; }
.badge-error { background: var(--error-dim); color: var(--error); }
.badge-info { background: var(--info-dim); color: var(--info); }

/* ── Expander — editorial accordion ── */
.expander {
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  background: transparent;
}
.expander-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; cursor: pointer;
  font-size: 0.95rem; font-weight: 600;
  color: var(--ink);
  transition: color var(--dur-fast);
}
.expander-header:hover { color: var(--rust); }
.expander-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.5s var(--ease-out), padding 0.5s var(--ease-out);
  padding: 0;
}
.expander.open .expander-body {
  max-height: 1200px;
  padding: 0 0 24px;
}
.expander-arrow {
  font-size: 0.8rem; color: var(--ink-muted);
  transition: transform 0.3s var(--ease-out);
  font-family: var(--font-display);
}
.expander.open .expander-arrow { transform: rotate(45deg); }

/* ── Divider ── */
.divider {
  border: none; border-top: 1px solid var(--border-heavy);
  margin: 48px 0;
  width: 72px;
}

/* ── Toast ── */
.toast {
  position: fixed; top: 20px; right: 20px;
  padding: 12px 20px;
  font-size: 0.82rem; font-weight: 600; z-index: 9999;
  animation: toastIn 0.4s var(--ease-out-expo) both;
  box-shadow: var(--shadow-md);
  display: flex; align-items: center; gap: 8px;
}
.toast-success { background: #EDF8F2; color: #1B5E3A; border: 1px solid #B8E6CC; }
.toast-error { background: #FEF3F2; color: #8B1A1A; border: 1px solid #FACCCA; }
.toast-info { background: #F0F5FA; color: #1A3A6E; border: 1px solid #C5D9F0; }
@keyframes toastIn { from { opacity: 0; transform: translateX(30px); } }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(30, 27, 24, 0.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 999;
  animation: overlayIn 0.15s ease-out;
}
@keyframes overlayIn { from { opacity: 0; } }
.modal {
  background: var(--ivory);
  border: 1px solid var(--border-heavy);
  padding: 36px; max-width: 460px; width: 90%;
  box-shadow: var(--shadow-md);
  animation: modalIn 0.3s var(--ease-out-expo) both;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(16px) scale(0.98); } }
.modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 700; margin-bottom: 18px;
}

/* ── Upload zone — understated ── */
.upload-zone {
  border: 1px dashed var(--border-heavy);
  padding: 32px; text-align: center;
  background: var(--ivory);
  cursor: pointer;
  transition: border-color var(--dur), background var(--dur);
  max-width: 480px;
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--rust); border-style: solid;
  background: var(--rust-dim);
}
.upload-zone .upload-icon { font-size: 24px; margin-bottom: 6px; opacity: 0.4; }
.upload-zone p { font-size: 0.88rem; color: var(--ink-soft); }

/* ── Empty state ── */
.empty-state {
  text-align: center; padding: 64px 20px;
  color: var(--ink-muted);
}
.empty-state .empty-icon { font-size: 28px; margin-bottom: 12px; opacity: 0.25; }
.empty-state p { font-size: 0.9rem; }

/* ── API Key config / Provider management ── */
.providers-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px;
}
.providers-header h3 { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }
.providers-list {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--border);
}
.provider-card {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center; gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  animation: docEnter 0.35s var(--ease-out-expo) both;
}
.provider-info { min-width: 0; }
.provider-name {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 600;
  color: var(--ink);
  font-style: italic;
}
.provider-detail {
  display: flex; align-items: center; gap: 8px;
  margin-top: 4px; flex-wrap: wrap;
}
.provider-status { margin-top: 2px; }
.provider-actions {
  display: flex; gap: 8px; flex-shrink: 0;
}

.api-key-input-row {
  display: flex; gap: 8px; align-items: center;
}
.api-key-input-row .form-input { flex: 1; }
.api-key-input-row .btn { flex-shrink: 0; padding: 6px 12px; font-size: 0.65rem; }

.provider-modal { max-width: 420px; padding: 28px 32px; }
.provider-modal .modal-title { font-size: 1.2rem; margin-bottom: 20px; }
.provider-modal .form-group { margin-bottom: 14px; }
.provider-modal .form-label { font-size: 0.62rem; margin-bottom: 4px; }
.provider-modal .form-input, .provider-modal .form-select { padding: 8px 12px; font-size: 0.82rem; }

/* ── Progress bar ── */
.progress-bar {
  width: 100%; height: 3px;
  background: var(--ivory-deep);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--rust);
  transition: width 0.7s var(--ease-out-expo);
}
.progress-fill.success { background: var(--success); }