/* SpecNow UI SPEC V1.0 — Editorial Developer Tool / document workbench style */

:root {
  --paper: #fff2df;
  --paper-soft: #fff8ef;
  --ink: #0b1014;
  --ink-muted: #4b5563;
  --teal: #65a29d;
  --teal-dark: #3f7f7a;
  --coral: #da5a6b;
  --coral-dark: #b93f50;
  --line: rgba(11, 16, 20, 0.14);
  --line-strong: rgba(11, 16, 20, 0.24);
  --white: #ffffff;
  --success: #2f8f68;
  --warning: #c77818;
  --danger: #b4233a;

  --font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --max-width: 1180px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  font-size: 16px;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--teal-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  border: none;
  text-decoration: none;
}

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

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(218, 90, 107, 0.25);
}

.btn-primary:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 2px;
}

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line-strong);
}

.btn-secondary:hover {
  border-color: var(--ink-muted);
  background: var(--paper-soft);
}

.btn-secondary:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 2px;
}

.btn-large {
  padding: 14px 32px;
  font-size: 1.05rem;
}

/* Navigation */
.nav {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
}

.logo:hover {
  text-decoration: none;
}

.logo-img {
  height: 44px;
  width: auto;
  vertical-align: middle;
}

.nav-links {
  display: flex;
  gap: 24px;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--ink-muted);
}

.nav-links a:hover {
  color: var(--ink);
}

/* Hero */
.hero {
  padding: 64px 24px 72px;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-left {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.badge {
  display: inline-block;
  width: fit-content;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--teal);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.hero-left h1 {
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--ink-muted);
  max-width: 460px;
  line-height: 1.55;
}

.hero-meta {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

/* Hero right visual */
.hero-right {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  align-items: center;
}

.hero-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: 0 2px 8px rgba(11, 16, 20, 0.06);
}

.hero-card-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 10px;
}

.hero-card-body {
  font-size: 0.9rem;
  color: var(--ink);
  line-height: 1.5;
}

.hero-card-body p {
  margin-bottom: 6px;
}

.hero-card-body p:last-child {
  margin-bottom: 0;
}

.file-list-mini {
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-muted);
  line-height: 1.7;
}

.hero-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.arrow-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--coral);
}

.arrow-line {
  display: block;
  width: 2px;
  height: 48px;
  background: var(--coral);
  border-radius: 2px;
}

/* Input workbench */
.workbench {
  padding: 56px 24px;
  border-top: 1px solid var(--line);
  background: var(--paper-soft);
}

.workbench-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.workbench-inner h2 {
  font-size: 1.5rem;
  font-weight: 600;
}

.workbench textarea {
  width: 100%;
  min-height: 180px;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
  font-size: 1rem;
  font-family: inherit;
  resize: vertical;
  line-height: 1.55;
}

.workbench textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(101, 162, 157, 0.18);
}

.workbench-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink-muted);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip:hover {
  border-color: var(--teal);
  color: var(--teal-dark);
}

.chip:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.char-count {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

/* Panels (status, result, error) */
.panel {
  padding: 48px 24px;
  border-top: 1px solid var(--line);
}

.panel-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.status-panel .status-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 18px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--teal);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.status-steps {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.step {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink-muted);
}

.step.active {
  background: var(--teal);
  color: var(--white);
  border-color: var(--teal);
}

.job-details {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.job-details code {
  font-family: var(--font-mono);
  background: var(--white);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--line);
}

.job-id-display {
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.job-id-display code {
  font-family: var(--font-mono);
  background: var(--white);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--line);
  font-size: 0.85rem;
}

.generation-wait-copy {
  margin-top: 10px;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--ink-muted);
  line-height: 1.5;
}

.generation-wait-copy strong {
  color: var(--ink);
}

.payment-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.payment-actions.hidden {
  display: none;
}

/* Preview panel */
.preview-content {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  margin-bottom: 20px;
}

.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4 {
  font-weight: 700;
  margin-top: 18px;
  margin-bottom: 10px;
  line-height: 1.3;
}

.preview-content h1 { font-size: 1.35rem; }
.preview-content h2 { font-size: 1.2rem; }
.preview-content h3 { font-size: 1.1rem; }
.preview-content h4 { font-size: 1rem; }

.preview-content ul {
  margin-left: 20px;
  margin-bottom: 12px;
}

.preview-content li {
  margin-bottom: 6px;
}

.preview-content strong {
  font-weight: 700;
  color: var(--ink);
}

.preview-content em {
  font-style: italic;
}

.preview-content code {
  background: var(--fill);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
}

.preview-content blockquote {
  border-left: 3px solid var(--line);
  padding-left: 14px;
  margin: 12px 0;
  color: var(--muted);
}

.preview-content hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 18px 0;
}

.preview-content a {
  color: var(--brand);
  text-decoration: underline;
}

@media (max-width: 639px) {
  .preview-content {
    padding: 14px 16px;
    font-size: 0.95rem;
  }

  .preview-content h1 { font-size: 1.2rem; }
  .preview-content h2 { font-size: 1.1rem; }
  .preview-content h3 { font-size: 1rem; }
}

/* Result panel */
.result-panel h2 {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.result-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.result-chip {
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--line);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.file-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.file-list li {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.file-name {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
}

.file-desc {
  font-size: 0.85rem;
  color: var(--ink-muted);
}

.result-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Error panel */
.error-panel h2 {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: var(--danger);
}

.error-panel p {
  color: var(--ink-muted);
  margin-bottom: 16px;
}

.error-hint {
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin-top: 12px;
}

/* How it works */
.how-it-works {
  padding: 64px 24px;
  border-top: 1px solid var(--line);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-inner h2 {
  font-size: 1.6rem;
  margin-bottom: 32px;
  text-align: center;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--teal);
  color: var(--white);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 14px;
}

.step-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.95rem;
  color: var(--ink-muted);
  line-height: 1.5;
}

/* Output section */
.output-section {
  padding: 64px 24px;
  border-top: 1px solid var(--line);
  background: var(--paper-soft);
}

.output-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.output-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}

.output-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
  display: block;
}

.output-card h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.output-card p {
  font-size: 0.9rem;
  color: var(--ink-muted);
  line-height: 1.5;
}

/* FAQ */
.faq-section {
  padding: 64px 24px;
  border-top: 1px solid var(--line);
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin-bottom: 12px;
}

.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--ink-muted);
  font-weight: 400;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  margin-top: 10px;
  font-size: 0.95rem;
  color: var(--ink-muted);
  line-height: 1.55;
}

/* Footer */
.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--line);
  text-align: center;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.footer-meta {
  font-size: 0.8rem;
  margin-top: 4px;
  color: var(--ink-muted);
  opacity: 0.7;
}

.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 959px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-right {
    grid-template-columns: 1fr auto 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .output-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .file-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 639px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: 40px 18px 48px;
  }

  .hero-left h1 {
    font-size: clamp(28px, 8vw, 36px);
  }

  .hero-right {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .hero-arrow {
    flex-direction: row;
    gap: 8px;
  }

  .arrow-line {
    width: 48px;
    height: 2px;
  }

  .workbench {
    padding: 40px 18px;
  }

  .workbench textarea {
    min-height: 220px;
  }

  .panel {
    padding: 36px 18px;
  }

  .how-it-works,
  .output-section,
  .faq-section {
    padding: 48px 18px;
  }

  .output-grid {
    grid-template-columns: 1fr;
  }

  .status-steps {
    flex-wrap: wrap;
  }

  .result-actions {
    flex-direction: column;
  }

  .result-actions .btn-primary,
  .result-actions .btn-secondary {
    width: 100%;
  }
}

/* Email input (P6) */
.email-input-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.email-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.email-input {
  width: 100%;
  max-width: 400px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
  font-size: 1rem;
  font-family: inherit;
}

.email-input:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(101, 162, 157, 0.18);
}

/* Email status (P6) */
.email-status-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  padding: 10px 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.email-status-wrap.hidden {
  display: none;
}

.email-status-icon {
  font-size: 1.1rem;
}

.email-status-wrap span:last-child {
  font-size: 0.9rem;
  color: var(--ink-muted);
}

/* Result file cards (P0) */
.result-file-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.result-file-card {
  padding: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.result-file-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.result-file-card .file-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink);
  word-break: break-word;
}

.result-file-card .file-desc {
  font-size: 0.85rem;
  color: var(--ink-muted);
  line-height: 1.4;
}

.result-file-card .file-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.result-file-card .file-actions button {
  font-size: 0.8rem;
  padding: 6px 10px;
}

/* Result summary (P0) */
.result-summary {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 24px;
}

.result-summary h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--ink);
}

.result-summary ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Copy link (P0) */
.copy-link-wrap {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.copy-link-wrap input {
  flex: 1 1 260px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

.copy-link-wrap button {
  flex: 0 0 auto;
}

/* Accordion (P0) */
.accordion {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  margin-bottom: 24px;
}

.accordion-item + .accordion-item {
  border-top: 1px solid var(--line);
}

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: none;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
}

.accordion-header:hover {
  background: var(--gray-50);
}

.accordion-body {
  padding: 0 18px 14px;
  font-size: 0.9rem;
  color: var(--ink-muted);
  line-height: 1.6;
  display: none;
}

.accordion-item.open .accordion-body {
  display: block;
}

.accordion-item.open .accordion-header .chevron {
  transform: rotate(180deg);
}

.accordion-header .chevron {
  transition: transform 0.2s ease;
}

/* Price display (P1 pricing fix) */
.price-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 14px 0;
}

.price-strike {
  text-decoration: line-through;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.price-highlight {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--ink);
}

.price-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--coral-dark);
  background: rgba(218, 90, 107, 0.1);
  padding: 4px 10px;
  border-radius: 999px;
}