/* ============================
   OT Reports — Design System
   ============================ */

:root {
  --bg:        #F7F6F3;
  --surface:   #FFFFFF;
  --border:    #E4E2DC;
  --border-2:  #D0CEC6;
  --text-1:    #1A1916;
  --text-2:    #6B6860;
  --text-3:    #A09E99;
  --accent:    #1A1916;
  --accent-hover: #3A3835;
  --danger:    #C0392B;
  --success:   #1A7F5A;
  --pdf:       #E74C3C;
  --word:      #2980B9;
  --excel:     #27AE60;
  --image:     #8E44AD;
  --radius:    10px;
  --radius-sm: 6px;
  --shadow:    0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.04);
  --shadow-md: 0 2px 8px rgba(0,0,0,.08), 0 12px 32px rgba(0,0,0,.06);
  --transition: 160ms cubic-bezier(.4,0,.2,1);
  --font: 'DM Sans', sans-serif;
  --mono: 'DM Mono', monospace;
}

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

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Nav ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247,246,243,.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem; height: 56px;
}
.nav-brand {
  display: flex; align-items: center; gap: .5rem;
  font-size: .875rem; font-weight: 600; letter-spacing: -.01em; color: var(--text-1);
  text-decoration: none;
}
.nav-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); display: block;
}
.nav-links { display: flex; gap: .25rem; }
.nav-link {
  font-size: .8125rem; font-weight: 500; color: var(--text-2);
  text-decoration: none; padding: .375rem .75rem; border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--text-1); background: var(--border); }
.nav-link.active { color: var(--text-1); background: var(--border); }

/* ── Main layout ── */
.main {
  max-width: 760px; margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
}

/* ── Page header ── */
.page-header { margin-bottom: 2.5rem; }
.page-label {
  font-size: .75rem; font-weight: 500; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-3); margin-bottom: .375rem;
}
.page-title {
  font-size: 1.75rem; font-weight: 600; letter-spacing: -.025em;
  color: var(--text-1); line-height: 1.2;
}
.page-desc { margin-top: .5rem; font-size: .875rem; color: var(--text-2); }

/* ── Card ── */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2rem;
  box-shadow: var(--shadow);
}

/* ── Form ── */
.form-row { display: grid; grid-template-columns: 1fr 1.6fr; gap: 1rem; }
@media (max-width: 540px) { .form-row { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1.25rem; }
.label {
  font-size: .8125rem; font-weight: 500; color: var(--text-1);
}
.optional { font-weight: 400; color: var(--text-3); }

.input-wrap { position: relative; display: flex; align-items: center; }
.input-prefix {
  position: absolute; left: .75rem;
  font-family: var(--mono); font-size: .8125rem;
  color: var(--text-3); pointer-events: none; user-select: none;
}
.input-wrap .input { padding-left: 2.5rem; }

.input {
  width: 100%; padding: .625rem .875rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg); color: var(--text-1);
  font-family: var(--font); font-size: .875rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.input:focus {
  border-color: var(--text-1);
  box-shadow: 0 0 0 3px rgba(26,25,22,.08);
  background: var(--surface);
}
.input::placeholder { color: var(--text-3); }
.textarea { resize: vertical; min-height: 80px; }

/* ── Dropzone ── */
.dropzone {
  position: relative; border: 1.5px dashed var(--border-2);
  border-radius: var(--radius); padding: 2rem 1.5rem;
  text-align: center; cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  background: var(--bg);
}
.dropzone:hover, .dropzone.drag-over {
  border-color: var(--text-1); background: var(--surface);
}
.file-input {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; cursor: pointer; z-index: 2;
}
.dz-icon { color: var(--text-3); margin-bottom: .75rem; }
.dz-text { font-size: .875rem; color: var(--text-2); }
.dz-link { color: var(--text-1); font-weight: 500; text-decoration: underline; cursor: pointer; }
.dz-hint { font-size: .75rem; color: var(--text-3); margin-top: .375rem; }

.dz-preview {
  display: flex; align-items: center; gap: 1rem;
  text-align: left;
}
.dz-file-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: .625rem; font-weight: 500;
  color: #fff; flex-shrink: 0;
}
.dz-file-info { flex: 1; min-width: 0; }
.dz-file-name {
  font-size: .875rem; font-weight: 500; color: var(--text-1);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.dz-file-size { font-size: .75rem; color: var(--text-3); margin-top: .125rem; }
.dz-remove {
  background: none; border: none; cursor: pointer;
  color: var(--text-3); padding: .25rem;
  display: flex; border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.dz-remove:hover { color: var(--danger); background: #fef2f2; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .625rem 1.25rem; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: .875rem; font-weight: 500;
  cursor: pointer; border: none; transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: var(--accent); color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; }

.btn-ghost {
  background: transparent; color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg); color: var(--text-1); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #a93226; }

.btn-outline {
  background: transparent; color: var(--text-1);
  border: 1px solid var(--border-2);
}
.btn-outline:hover { background: var(--bg); }

/* ── Progress ── */
.progress-wrap {
  height: 3px; background: var(--border);
  border-radius: 99px; overflow: hidden; margin-bottom: 1rem;
}
.progress-bar {
  height: 100%; background: var(--accent);
  border-radius: 99px; width: 0%;
  transition: width .3s ease;
}

/* ── Alert ── */
.alert {
  margin-top: 1rem; padding: .75rem 1rem;
  border-radius: var(--radius-sm); font-size: .875rem;
}
.alert.success { background: #f0fdf4; color: var(--success); border: 1px solid #bbf7d0; }
.alert.error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }

.form-footer { display: flex; flex-direction: column; margin-top: 1.75rem; }

/* ── Toolbar (lista) ── */
.toolbar {
  display: flex; align-items: center; gap: .75rem;
  margin-bottom: 1.25rem; flex-wrap: wrap;
}
.search-wrap {
  position: relative; flex: 1; min-width: 180px;
}
.search-icon {
  position: absolute; left: .75rem; top: 50%;
  transform: translateY(-50%); color: var(--text-3); pointer-events: none;
}
.search-input {
  width: 100%; padding: .5625rem .875rem .5625rem 2.25rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); font-family: var(--font); font-size: .875rem;
  color: var(--text-1); outline: none;
  transition: border-color var(--transition);
}
.search-input:focus { border-color: var(--text-1); }
.search-input::placeholder { color: var(--text-3); }

.filter-wrap { display: flex; gap: .5rem; }
.select {
  padding: .5625rem .875rem; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--surface);
  font-family: var(--font); font-size: .8125rem; color: var(--text-1);
  cursor: pointer; outline: none;
  transition: border-color var(--transition);
}
.select:focus { border-color: var(--text-1); }

/* ── Stats row ── */
.stats-row { margin-bottom: 1.25rem; }
.stat-chip {
  display: inline-block;
  font-size: .75rem; font-weight: 500; color: var(--text-3);
  letter-spacing: .02em;
}

/* ── Reports grid ── */
.reports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: .875rem;
}
@media (max-width: 480px) { .reports-grid { grid-template-columns: 1fr; } }

/* ── Report card ── */
.report-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
  text-decoration: none; display: flex; flex-direction: column; gap: .75rem;
  box-shadow: var(--shadow);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  cursor: pointer;
}
.report-card:hover {
  border-color: var(--border-2);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.rc-top { display: flex; align-items: flex-start; justify-content: space-between; gap: .5rem; }
.rc-ot {
  font-family: var(--mono); font-size: .75rem; font-weight: 500;
  color: var(--text-3); letter-spacing: .04em;
}
.rc-badge {
  font-size: .6875rem; font-weight: 500; padding: .25rem .5rem;
  border-radius: 99px; color: #fff; flex-shrink: 0;
  text-transform: uppercase; letter-spacing: .04em;
}
.badge-pdf   { background: var(--pdf); }
.badge-word  { background: var(--word); }
.badge-excel { background: var(--excel); }
.badge-image { background: var(--image); }
.badge-other { background: var(--text-3); }

.rc-title {
  font-size: .9375rem; font-weight: 500; color: var(--text-1);
  line-height: 1.35; letter-spacing: -.01em;
}
.rc-desc {
  font-size: .8125rem; color: var(--text-2);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.rc-foot { display: flex; align-items: center; justify-content: space-between; }
.rc-date { font-size: .75rem; color: var(--text-3); }
.rc-action {
  font-size: .75rem; font-weight: 500; color: var(--text-2);
  display: flex; align-items: center; gap: .25rem;
}

/* ── Skeleton ── */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: .875rem;
}
.skeleton-card {
  height: 140px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(90deg, var(--surface) 25%, var(--bg) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.skeleton-detail {
  height: 400px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  background: linear-gradient(90deg, var(--surface) 25%, var(--bg) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}

/* ── Empty state ── */
.empty-state {
  text-align: center; padding: 4rem 2rem;
  color: var(--text-3);
}
.empty-icon { margin-bottom: 1rem; }
.empty-title { font-size: 1rem; font-weight: 500; color: var(--text-2); margin-bottom: .375rem; }
.empty-desc { font-size: .875rem; }

/* ── Back link ── */
.back-link {
  display: inline-flex; align-items: center; gap: .375rem;
  font-size: .8125rem; font-weight: 500; color: var(--text-2);
  text-decoration: none; margin-bottom: 2rem;
  transition: color var(--transition);
}
.back-link:hover { color: var(--text-1); }

/* ── Report detail ── */
.report-detail-wrap { }
.detail-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow);
}
.detail-header {
  padding: 2rem; border-bottom: 1px solid var(--border);
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap;
}
.detail-header-left { }
.detail-ot {
  font-family: var(--mono); font-size: .75rem; font-weight: 500;
  color: var(--text-3); letter-spacing: .06em; margin-bottom: .5rem;
}
.detail-title {
  font-size: 1.375rem; font-weight: 600; letter-spacing: -.02em;
  color: var(--text-1); line-height: 1.25;
}
.detail-actions { display: flex; gap: .5rem; flex-wrap: wrap; }

.detail-meta {
  padding: 1.25rem 2rem; border-bottom: 1px solid var(--border);
  display: flex; gap: 2rem; flex-wrap: wrap;
}
.meta-item { }
.meta-label { font-size: .6875rem; font-weight: 500; color: var(--text-3); text-transform: uppercase; letter-spacing: .06em; }
.meta-value { font-size: .875rem; color: var(--text-1); margin-top: .25rem; }

.detail-desc {
  padding: 1.5rem 2rem; border-bottom: 1px solid var(--border);
  font-size: .9375rem; color: var(--text-2); line-height: 1.7;
}
.detail-desc.no-desc { color: var(--text-3); font-style: italic; }

.detail-preview {
  padding: 2rem;
}
.preview-label { font-size: .75rem; font-weight: 500; color: var(--text-3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 1rem; }
.preview-frame {
  width: 100%; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg);
}
.preview-frame iframe {
  width: 100%; height: 520px; border: none; display: block;
  border-radius: var(--radius-sm);
}
.preview-image {
  width: 100%; border-radius: var(--radius-sm);
  max-height: 520px; object-fit: contain; display: block;
}
.preview-unavailable {
  padding: 3rem; text-align: center; color: var(--text-3);
}
.preview-unavailable svg { margin-bottom: 1rem; }
.preview-unavailable p { font-size: .875rem; }

.detail-danger {
  padding: 1.5rem 2rem; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.detail-danger-text { font-size: .8125rem; color: var(--text-3); }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.35);
  backdrop-filter: blur(4px); z-index: 200;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.modal {
  background: var(--surface); border-radius: var(--radius);
  padding: 2rem; max-width: 400px; width: 100%;
  box-shadow: var(--shadow-md);
}
.modal-title { font-size: 1rem; font-weight: 600; margin-bottom: .5rem; }
.modal-desc { font-size: .875rem; color: var(--text-2); margin-bottom: 1.5rem; }
.modal-actions { display: flex; gap: .5rem; justify-content: flex-end; }

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

/* ── Pagination ── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .375rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.page-numbers {
  display: flex;
  align-items: center;
  gap: .25rem;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 .5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-2);
  font-family: var(--font);
  font-size: .8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1;
}

.page-btn:hover:not(:disabled):not(.active) {
  border-color: var(--border-2);
  color: var(--text-1);
  background: var(--bg);
}

.page-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  cursor: default;
}

.page-btn:disabled {
  opacity: .35;
  cursor: not-allowed;
}

.page-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  color: var(--text-3);
  font-size: .8125rem;
  user-select: none;
}