/* ============================================================
   Design tokens
   ============================================================ */
:root {
  --bg:             #FAFBFF;
  --surface:        #EFF2F9;
  --surface-2:      #E4EBF1;
  --border:         #D8DEE6;
  --muted:          #B5BFC6;
  --text-secondary: #6E7F8D;
  --text-primary:   #2C3640;
  --accent:         #3A4A56;
  --accent-hover:   #2C3640;
  --danger:         #C44A4A;
  --success:        #4A8C5F;
  --shadow-light:   #FFFFFF;
  --shadow-dark:    rgba(22, 27, 29, 0.12);

  --shadow-card:
    -5px -5px 10px var(--shadow-light),
     5px  5px 10px var(--shadow-dark);
  --shadow-card-hover:
    -8px -8px 16px var(--shadow-light),
     8px  8px 16px var(--shadow-dark);
  --shadow-inset:
    inset -3px -3px 6px var(--shadow-light),
    inset  3px  3px 6px var(--shadow-dark);

  --radius-card:   16px;
  --radius-btn:    12px;
  --radius-input:  12px;
}

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

html {
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

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

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
}

.logo-link { display: inline-flex; align-items: center; text-decoration: none; }
.logo { height: 28px; width: auto; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  max-width: 960px;
  margin: 64px auto 0;
  padding: 0 32px;
  text-align: center;
}

.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

h1 {
  font-size: 2.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.subheading {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ============================================================
   Card base
   ============================================================ */
.card {
  background: var(--surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 24px;
}

/* ============================================================
   Input section
   ============================================================ */
.inputs-section {
  max-width: 960px;
  margin: 48px auto 0;
  padding: 0 32px;
}

.inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.input-card { display: flex; flex-direction: column; gap: 12px; }

.input-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Drop zone */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-input);
  padding: 32px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: var(--bg);
}

.drop-zone:hover, .drop-zone:focus {
  border-color: var(--accent);
  outline: none;
}

.drop-zone.drag-over {
  border-color: var(--accent);
  border-style: solid;
  background: var(--surface-2);
}

.drop-icon { color: var(--muted); margin-bottom: 4px; }
.drop-primary { font-weight: 500; font-size: 0.95rem; color: var(--text-primary); }
.drop-secondary { font-size: 0.85rem; color: var(--text-secondary); }
.drop-link { color: var(--accent); font-weight: 500; }
.drop-hint { font-size: 0.78rem; color: var(--muted); margin-top: 4px; }

#resume-file-input { position: absolute; width: 0; height: 0; opacity: 0; pointer-events: none; }

/* File preview */
.file-preview {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-radius: var(--radius-input);
  box-shadow: var(--shadow-inset);
  color: var(--text-secondary);
}

.file-info { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.file-name { font-weight: 500; font-size: 0.9rem; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-size { font-size: 0.78rem; color: var(--muted); }

.file-remove {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  padding: 4px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  transition: color 0.15s;
}
.file-remove:hover { color: var(--danger); }

/* Job description textarea */
.textarea-wrapper { position: relative; display: flex; flex-direction: column; flex: 1; }

.jd-textarea {
  width: 100%;
  min-height: 240px;
  max-height: 400px;
  padding: 14px;
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--text-primary);
  background: var(--surface-2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-input);
  box-shadow: var(--shadow-inset);
  resize: vertical;
  outline: none;
  transition: border-color 0.15s;
}

.jd-textarea::placeholder { color: var(--muted); }
.jd-textarea:focus { border-color: var(--accent); }

.char-count {
  position: absolute;
  bottom: 10px;
  right: 12px;
  font-size: 0.72rem;
  color: var(--muted);
  pointer-events: none;
}

/* ============================================================
   Actions section
   ============================================================ */
.actions-section {
  max-width: 960px;
  margin: 32px auto 0;
  padding: 0 32px;
}

.actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.action-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  border: none;
  text-align: left;
  transition: box-shadow 0.18s, opacity 0.18s;
  position: relative;
  overflow: hidden;
}

.action-card:hover {
  box-shadow: var(--shadow-card-hover);
}

.action-card:active {
  box-shadow: var(--shadow-inset);
}

.action-card.loading {
  pointer-events: none;
}

.action-card.dimmed {
  opacity: 0.4;
  pointer-events: none;
}

.action-icon-wrap {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--surface-2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  box-shadow: var(--shadow-inset);
}

.action-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  min-width: 0;
}

.action-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.action-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Spinner */
.spinner {
  flex-shrink: 0;
  animation: spin 0.8s linear infinite;
  color: var(--accent);
}

.spinner-arc {
  stroke-dasharray: 30;
  stroke-dashoffset: 0;
  stroke-linecap: round;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ============================================================
   Output section
   ============================================================ */
.output-section {
  max-width: 960px;
  margin: 32px auto 48px;
  padding: 0 32px;
}

.output-card { padding: 0; }

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
  gap: 16px;
  flex-wrap: wrap;
}

.output-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.output-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: color 0.15s, background 0.15s, box-shadow 0.15s;
}

.tool-btn:hover {
  color: var(--text-primary);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

.tool-btn--close {
  margin-left: 4px;
  padding: 7px 9px;
}

.tool-btn--close:hover { color: var(--danger); }

/* Skeleton */
.output-skeleton {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skeleton-line {
  height: 14px;
  background: var(--surface-2);
  border-radius: 6px;
  animation: pulse 1.4s ease-in-out infinite;
}

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

/* Output text */
.output-text {
  padding: 24px;
  font-family: "Inter", sans-serif;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  max-height: 600px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
  margin-top: 16px;
  outline: none;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  padding: 24px 32px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* ============================================================
   Modal
   ============================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(46, 58, 68, 0.15);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 24px;
}

.modal-card {
  background: var(--surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card-hover);
  padding: 32px;
  max-width: 400px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.modal-icon-wrap {
  width: 48px;
  height: 48px;
  background: var(--surface-2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--danger);
  box-shadow: var(--shadow-inset);
}

.modal-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-message {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.btn-primary {
  padding: 10px 28px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover { background: var(--accent-hover); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 720px) {
  h1 { font-size: 1.8rem; }

  .inputs-grid,
  .actions-grid {
    grid-template-columns: 1fr;
  }

  .site-header { padding: 0 16px; }
  .hero,
  .inputs-section,
  .actions-section,
  .output-section { padding: 0 16px; }

  .hero { margin-top: 40px; }
}

@media (max-width: 480px) {
  .output-toolbar { gap: 6px; }
  .tool-btn { padding: 6px 10px; font-size: 0.78rem; }
}