/* ========================================
 * components.css - reusable UI components
 * Depends on theme.css tokens.
 * ======================================== */

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border: none; border-radius: var(--radius);
  font-size: 0.9375rem; font-weight: 600; font-family: inherit;
  cursor: pointer; transition: opacity 0.15s, background-color 0.15s;
  text-decoration: none; line-height: 1.4;
}
.btn:hover { opacity: 0.9; text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}
.btn-primary { background: var(--primary-action); color: var(--primary-foreground); }
.btn-outline {
  background: transparent; color: var(--foreground);
  border: 1px solid var(--border);
}
.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--muted); color: var(--foreground); }
.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.8125rem; }
.btn-lg { padding: 0.75rem 1.75rem; font-size: 1rem; }

.inline-form { display: inline-flex; }

/* --- Spinner ---
 * Visibility is driven by Datastar data-show signals; CSS only styles
 * the appearance, so do not set display here.
 */
.spinner {
  width: 0.875rem; height: 0.875rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-rotate 0.7s linear infinite;
  display: inline-block; vertical-align: -0.125em;
}
@keyframes spinner-rotate { to { transform: rotate(360deg); } }

/* --- Fields --- */
.field { margin-bottom: 1.125rem; }
.field-label {
  display: block; margin-bottom: 0.375rem;
  font-size: 0.875rem; font-weight: 600;
}
.field-input {
  width: 100%; padding: 0.625rem 0.75rem;
  border: 1px solid var(--input); border-radius: var(--radius);
  background: var(--background); color: var(--foreground);
  font-size: 0.9375rem; line-height: 1.5; font-family: inherit;
  outline: none; transition: border-color 0.15s;
  resize: vertical;
}
.field-input:focus-visible {
  border-color: var(--ring);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--ring) 25%, transparent);
}
.field-hint { color: var(--muted-foreground); font-size: 0.8125rem; margin-top: 0.25rem; }

/* --- Cards --- */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

/* --- Auth --- */
.auth-card {
  max-width: 26rem; margin: 3rem auto 0;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2rem;
}
.auth-title { margin-bottom: 1.25rem; }
.auth-lede { color: var(--muted-foreground); font-size: 0.9375rem; margin-bottom: 1.25rem; }
.auth-submit-btn { width: 100%; margin-top: 0.5rem; }
.auth-link { margin-top: 1.25rem; font-size: 0.9375rem; color: var(--muted-foreground); }
.auth-note {
  margin-top: 1rem; padding-top: 1rem;
  border-top: 1px dashed var(--border);
  color: var(--muted-foreground); font-size: 0.8125rem;
}
.auth-error, .status.error {
  color: var(--err); font-size: 0.875rem; margin-bottom: 0.75rem;
}
.status.ok { color: var(--ok); font-size: 0.875rem; margin-bottom: 0.75rem; }
.error-card { text-align: center; }
.error-code {
  font-family: var(--font-mono); font-size: 2.5rem; font-weight: 700;
  color: var(--muted-foreground); margin-bottom: 0.5rem;
}

/* --- Hero / landing --- */
.hero { padding: 2rem 0 3rem; max-width: 44rem; }
.hero-eyebrow {
  color: var(--primary); font-size: 0.875rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1rem;
}
.hero h1 { margin-bottom: 1.25rem; }
.hero-lede { color: var(--text-secondary); font-size: 1.125rem; max-width: 38rem; }
.hero-actions { display: flex; gap: 0.875rem; flex-wrap: wrap; margin-top: 2rem; }
.status-grid { padding-bottom: 3rem; }
.status-grid h2 { margin-bottom: 1.25rem; }
.status-card h3 { margin: 0.5rem 0 0.625rem; }
.status-tag {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  padding: 0.1875rem 0.625rem; border-radius: 999px;
}
.status-now { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.status-later { color: var(--warn); background: color-mix(in srgb, var(--warn) 12%, transparent); }

/* --- Studio --- */
.studio-head { margin-bottom: 1.5rem; }
.studio-head h1 { margin-bottom: 0.25rem; }
.verify-banner {
  background: color-mix(in srgb, var(--warn) 10%, var(--card));
  border: 1px solid color-mix(in srgb, var(--warn) 35%, transparent);
  border-radius: var(--radius);
  padding: 1rem 1.25rem; margin-bottom: 1.5rem;
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem;
}
.verify-banner p { margin: 0; flex: 1 1 16rem; }
.studio-create { margin-bottom: 2.25rem; }
.studio-create h2 { margin-bottom: 0.625rem; }
.studio-create .text-muted { font-size: 0.9375rem; }
.studio-tasks h2 { margin-bottom: 1rem; }
.empty-state {
  color: var(--muted-foreground);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 1.5rem; text-align: center;
}
.task-list { list-style: none; display: flex; flex-direction: column; gap: 0.625rem; }
.task-link {
  display: flex; align-items: center; gap: 1rem;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 0.875rem 1.125rem;
  color: var(--foreground);
}
.task-link:hover { border-color: var(--ring); text-decoration: none; }
.task-prompt { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-meta { color: var(--muted-foreground); font-size: 0.8125rem; white-space: nowrap; }
.task-status {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; padding: 0.125rem 0.5rem; border-radius: 999px;
}
.status-succeeded { color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.status-failed { color: var(--err); background: color-mix(in srgb, var(--err) 12%, transparent); }
.status-pending, .status-running { color: var(--warn); background: color-mix(in srgb, var(--warn) 12%, transparent); }

/* --- Result --- */
.result-head { margin-bottom: 1.5rem; }
.result-head h1 { margin-bottom: 0.25rem; }
.result-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 1.5rem; }
@media (max-width: 860px) { .result-grid { grid-template-columns: 1fr; } }
.result-artifact img {
  width: 100%; border-radius: var(--radius);
  border: 1px solid var(--card-border); background: var(--muted);
}
.result-placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 16rem; border: 1px dashed var(--border); border-radius: var(--radius);
  color: var(--muted-foreground);
}
.result-failed { color: var(--err); }
.result-meta { display: flex; flex-direction: column; gap: 0.75rem; }
.result-meta div { display: flex; flex-direction: column; gap: 0.125rem; }
.result-meta dt {
  color: var(--muted-foreground); font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.07em;
}
.result-meta dd { font-size: 0.9375rem; overflow-wrap: anywhere; }
.result-prompt dd { font-family: var(--font-mono); font-size: 0.875rem; }

/* --- Mailbox --- */
.mailbox { max-width: 44rem; }
.mailbox h1 { margin-bottom: 0.5rem; }
.mailbox-list { list-style: none; display: flex; flex-direction: column; gap: 0.625rem; margin-top: 1.5rem; }
.mailbox-link {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.5rem 1rem;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 0.875rem 1.125rem;
  color: var(--foreground);
}
.mailbox-link:hover { border-color: var(--ring); text-decoration: none; }
.mailbox-subject { font-weight: 600; }
.mailbox-body { margin-top: 1.5rem; line-height: 1.7; }

/* --- Legal --- */
.legal { max-width: 44rem; }
.legal h1 { margin-bottom: 0.5rem; }
.legal-updated { margin-bottom: 2rem; }
.legal section { margin-bottom: 1.75rem; }
.legal h2 { font-size: 1.125rem; margin-bottom: 0.625rem; }

/* --- Breadcrumbs --- */
.crumbs {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; color: var(--muted-foreground); margin-bottom: 1.25rem;
}
.crumbs a { color: var(--text-secondary); }
.crumbs [aria-current] { color: var(--muted-foreground); }

/* --- Model page --- */
.model-hero { max-width: 44rem; margin-bottom: 2rem; }
.model-hero h1 { margin-bottom: 0.875rem; }
.model-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; margin-bottom: 0.875rem; }
.model-maker { color: var(--muted-foreground); font-size: 0.875rem; }
.model-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 18rem;
  gap: 2rem; align-items: start;
}
@media (max-width: 860px) { .model-layout { grid-template-columns: 1fr; } }
.model-main { display: flex; flex-direction: column; gap: 1.5rem; min-width: 0; }
.placeholder-notice {
  border: 1px dashed color-mix(in srgb, var(--warn) 45%, transparent);
  background: color-mix(in srgb, var(--warn) 6%, var(--background));
  border-radius: var(--radius); padding: 1.25rem 1.5rem;
}
.placeholder-notice h2 { font-size: 1.125rem; margin-bottom: 0.5rem; }
.placeholder-notice p:last-child { margin-bottom: 0; }
.model-cta h2 { font-size: 1.25rem; margin-bottom: 0.375rem; }
.model-cta .hero-actions { margin-top: 0.25rem; }
.model-steps h2 { font-size: 1.125rem; margin-bottom: 1rem; }
.steps { list-style: none; counter-reset: step; display: grid; gap: 1rem; }
.steps li {
  counter-increment: step; position: relative;
  padding-left: 2.5rem;
}
.steps li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 1.75rem; height: 1.75rem; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.8125rem; font-weight: 700;
  color: var(--primary); border: 1px solid var(--card-border); background: var(--card);
}
.steps h3 { font-size: 1rem; margin-bottom: 0.125rem; }
.steps p { margin-bottom: 0; font-size: 0.9375rem; }
.model-aside, .generate-aside {
  border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 1.25rem; background: var(--muted);
}
.aside-title {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--muted-foreground); margin-bottom: 0.875rem;
}
.spec-list { display: flex; flex-direction: column; gap: 0.75rem; }
.spec-list div { display: flex; flex-direction: column; gap: 0.0625rem; }
.spec-list dt { color: var(--muted-foreground); font-size: 0.8125rem; }
.spec-list dd { font-size: 0.9375rem; overflow-wrap: anywhere; }

/* --- Generate page --- */
.generate-sub { display: flex; flex-wrap: wrap; align-items: center; gap: 0.375rem 0.625rem; }
.mode-badge {
  display: inline-block;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em;
  padding: 0.125rem 0.5rem; border-radius: 999px;
  color: var(--warn); background: color-mix(in srgb, var(--warn) 12%, transparent);
}
.generate-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 18rem;
  gap: 1.5rem; align-items: start; margin-bottom: 2.25rem;
}
@media (max-width: 860px) { .generate-layout { grid-template-columns: 1fr; } }
.generate-card h2 { font-size: 1.125rem; margin-bottom: 0.75rem; }
.generate-card .empty-state { margin: 0; }
.happens-list {
  list-style: none; display: flex; flex-direction: column; gap: 0.625rem;
  font-size: 0.875rem; color: var(--text-secondary);
  margin-bottom: 1.25rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--border);
}
.happens-list li { padding-left: 1rem; position: relative; }
.happens-list li::before {
  content: ""; position: absolute; left: 0; top: 0.6em;
  width: 0.375rem; height: 0.375rem; border-radius: 50%; background: var(--primary);
}
.quota-note { font-size: 0.875rem; margin-bottom: 0.75rem; }
.quota-used { color: var(--warn); }
.field-input:disabled { opacity: 0.55; cursor: not-allowed; }

/* Task rows on narrow screens: status + time on one line, prompt below. */
@media (max-width: 560px) {
  .task-link { flex-wrap: wrap; gap: 0.375rem 0.75rem; }
  .task-meta { margin-left: auto; }
  .task-prompt { flex-basis: 100%; order: 3; }
}

/* --- Stored sample library and prompt notes --- */
.sample-intro { max-width: 46rem; margin-bottom: 2.25rem; }
.sample-intro h1, .sample-detail-head h1, .guide-article h1 { margin-bottom: 0.875rem; }
.sample-disclaimer { color: var(--muted-foreground); font-size: 0.875rem; max-width: 42rem; }
.sample-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.75rem 1.25rem; margin-bottom: 4rem; }
.sample-tile { min-width: 0; }
.sample-tile-link { color: var(--foreground); display: block; }
.sample-tile-link:hover { text-decoration: none; }
.sample-image, .home-feature-image, .sample-result-image { display: block; position: relative; overflow: hidden; background: var(--muted); border-radius: var(--radius); }
.sample-image { aspect-ratio: 4 / 3; }
.sample-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.sample-image img, .home-feature-image img, .sample-result-image img { outline: 1px solid rgb(255 255 255 / 0.1); outline-offset: -1px; }
.sample-stamp { position: absolute; top: 0.75rem; left: 0.75rem; z-index: 1; padding: 0.25rem 0.625rem; border-radius: var(--radius-sm); color: var(--foreground); background: var(--background); border: 1px solid var(--card-border); text-transform: uppercase; font-weight: 700; font-size: 0.75rem; letter-spacing: 0.07em; }
.sample-tile-copy { display: flex; justify-content: space-between; gap: 0.75rem; margin-top: 0.75rem; align-items: baseline; }
.sample-tile-copy strong { font-size: 1rem; }
.sample-tile-copy span { color: var(--muted-foreground); font-size: 0.75rem; text-align: right; }
.sample-tile-link:hover .sample-tile-copy strong { color: var(--link); text-decoration: underline; }
.sample-tile-link:active .sample-image, .btn:active { transform: scale(0.985); }
.sample-tile-link .sample-image, .btn { transition: transform 0.12s ease-out; }
.guide-section { border-top: 1px solid var(--border); padding-top: 2.25rem; }
.guide-section h2 { margin-bottom: 1.5rem; }
.guide-links { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.guide-links li { border-top: 1px solid var(--card-border); padding-top: 1rem; }
.guide-links a { font-size: 1.0625rem; font-weight: 600; }
.guide-links p { font-size: 0.875rem; color: var(--muted-foreground); margin: 0.5rem 0 0; }
.home-feature { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 2.25rem; align-items: center; margin: 0 0 4rem; }
.home-feature-image img { display: block; width: 100%; }
.home-feature h2 { margin-bottom: 0.875rem; }
.home-feature p:not(.hero-eyebrow) { color: var(--text-secondary); }
.sample-detail-head { max-width: 42rem; margin-bottom: 2rem; }
.sample-detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 18rem; gap: 2rem; align-items: start; }
.sample-result-wait { min-height: 26rem; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 2rem; border: 1px dashed var(--card-border); border-radius: var(--radius); color: var(--muted-foreground); }
.sample-result-wait p { max-width: 20rem; }
.sample-result-kicker { color: var(--primary); font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.sample-detail-aside { padding: 1.25rem; background: var(--muted); border: 1px solid var(--card-border); border-radius: var(--radius); }
.sample-detail-aside h2 { font-size: 1.125rem; margin-bottom: 0.75rem; }
.sample-detail-aside p { font-size: 0.875rem; }
.sample-detail-aside .btn { margin-bottom: 0.5rem; }
.sample-result-open { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
.sample-result-image img { display: block; width: 100%; height: auto; max-height: 42rem; object-fit: contain; }
.sample-result-caption { max-width: 42rem; }
.sample-result-caption h2 { margin-bottom: 0.5rem; }
.sample-result-caption dl { border-top: 1px solid var(--border); padding-top: 0.875rem; }
.sample-result-caption dt { font-size: 0.75rem; color: var(--muted-foreground); text-transform: uppercase; letter-spacing: 0.06em; }
.sample-result-caption dd { margin: 0.2rem 0 0.9rem; overflow-wrap: anywhere; }
.guide-article { max-width: 48rem; margin: 0 auto; }
.guide-article header { margin-bottom: 2rem; }
.guide-figure { margin-bottom: 2.25rem; }
.guide-figure .sample-image { aspect-ratio: auto; max-height: 32rem; }
.guide-figure img { max-height: 32rem; object-fit: contain; }
.guide-figure figcaption { color: var(--muted-foreground); font-size: 0.8125rem; margin-top: 0.625rem; }
.guide-prose { max-width: 42rem; }
.guide-prose h2 { font-size: 1.25rem; margin: 2rem 0 0.75rem; }
.guide-prose p { color: var(--text-secondary); }
.guide-prose blockquote { padding: 1rem 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.guide-prose blockquote p { color: var(--foreground); font-family: var(--font-mono); font-size: 0.9375rem; margin-bottom: 0.5rem; }
.guide-prose cite { color: var(--muted-foreground); font-size: 0.75rem; font-style: normal; }
@media (max-width: 860px) { .sample-gallery, .guide-links { grid-template-columns: repeat(2, minmax(0, 1fr)); } .sample-detail-layout { grid-template-columns: 1fr; } .sample-detail-aside { grid-row: 1; } }
@media (max-width: 600px) { .sample-gallery, .guide-links, .home-feature { grid-template-columns: 1fr; } .sample-gallery { gap: 1.5rem; } .home-feature { gap: 1.25rem; } .sample-result-wait { min-height: 15rem; } .sample-tile-copy { margin-top: 0.5rem; } .site-header-row { flex-wrap: wrap; } .site-nav { gap: 0.75rem; } }