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

:root {
  --primary:    #5f9ea0;
  --primary-d:  #4a8284;
  --primary-l:  #7badb0;
  --bg:         #e4e4e4;
  --card-bg:    #dde8e8;
  --border:     #b5cbcc;
  --text:       #2a2a2a;
  --text-soft:  #555;
  --danger:     #c0392b;
  --success:    #27ae60;
  --warn:       #e67e22;
  --radius:     16px;
  --shadow:     0 4px 20px rgba(95,158,160,0.15);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg);
  background-image: radial-gradient(#c8c8c8 1px, transparent 1px);
  background-size: 20px 20px;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Navbar ── */
.navbar {
  background: rgba(221,232,232,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 24px;
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 12px;
}
.nav-brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary-d);
  text-decoration: none;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.nav-btn {
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.18s;
}
.nav-btn:hover { background: var(--primary-d); text-decoration: none; }
.nav-btn-outline {
  background: transparent;
  color: var(--primary-d);
  border: 1.5px solid var(--primary-l);
}
.nav-btn-outline:hover { background: var(--card-bg); }

/* ── Layout ── */
.main-content {
  flex: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 48px;
  width: 100%;
}

.footer {
  text-align: center;
  padding: 16px;
  color: var(--text-soft);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}

/* ── Card ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary-d);
  margin-bottom: 18px;
}
.center-card { text-align: center; }

/* ── Hero ── */
.hero { text-align: center; margin: 32px 0 28px; }
.hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -1px;
}
.hero-sub { color: var(--text-soft); margin-top: 8px; font-size: 1.05rem; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background 0.18s, transform 0.1s;
}
.btn:hover { background: var(--primary-d); text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-outline {
  background: transparent;
  color: var(--primary-d);
  border: 1.5px solid var(--primary-l);
}
.btn-outline:hover { background: rgba(95,158,160,0.1); }
.btn-sm { padding: 5px 14px; font-size: 0.8rem; }
.btn-full { width: 100%; justify-content: center; padding: 10px; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #a93226; }
.btn-success { background: var(--success); }
.btn-success:hover { background: #1e8449; }
.btn-warn { background: var(--warn); }
.btn-warn:hover { background: #ca6f1e; }

/* ── Upload / Drop Zone ── */
.upload-card, .api-card { }
.upload-hint { font-size: 0.85rem; color: var(--text-soft); margin-bottom: 12px; }

.drop-zone {
  border: 2.5px dashed var(--primary-l);
  border-radius: 12px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  background: rgba(95,158,160,0.04);
}
.drop-zone:hover, .drop-zone.dragging {
  background: rgba(95,158,160,0.10);
  border-color: var(--primary);
}
.drop-icon { font-size: 2.5rem; margin-bottom: 8px; }
.file-label {
  color: var(--primary);
  font-weight: 600;
  cursor: pointer;
}
.file-label:hover { text-decoration: underline; }

.upload-progress { margin-top: 16px; }
.progress-bar {
  background: #c5d8d8;
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
  margin-bottom: 6px;
}
.progress-fill {
  background: var(--primary);
  height: 100%;
  width: 0%;
  transition: width 0.2s;
  border-radius: 999px;
}
#progressText { font-size: 0.8rem; color: var(--text-soft); }

.upload-result { margin-top: 16px; }
.result-label { font-size: 0.85rem; color: var(--text-soft); margin-bottom: 6px; }
.result-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.result-row input {
  flex: 1;
  min-width: 0;
  padding: 7px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 0.88rem;
  color: var(--primary-d);
}

.api-card pre.code-block {
  background: #1e2d2d;
  color: #a8d8a8;
  border-radius: 10px;
  padding: 18px;
  font-size: 0.82rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
.api-hint { margin-top: 10px; font-size: 0.85rem; color: var(--text-soft); }

/* ── Auth Pages ── */
.auth-wrapper {
  display: flex;
  justify-content: center;
  padding: 20px 0;
}
.auth-card { width: 100%; max-width: 420px; }
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form label { font-size: 0.85rem; font-weight: 600; color: var(--text-soft); }
.auth-form input {
  padding: 9px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: #fff;
  transition: border-color 0.15s;
}
.auth-form input:focus { outline: none; border-color: var(--primary); }
.auth-footer { margin-top: 16px; text-align: center; font-size: 0.85rem; color: var(--text-soft); }

/* ── Alerts ── */
.alert {
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.alert-error { background: #fce8e6; border: 1px solid #f5c6c2; color: #7b2d2d; }
.alert-success { background: #e6f4ea; border: 1px solid #b7dfc0; color: #1e4d2d; }

/* ── Message Page ── */
.msg-icon { font-size: 3rem; margin-bottom: 12px; }
.msg-body { color: var(--text-soft); margin: 12px 0 20px; font-size: 0.95rem; }

/* ── File View ── */
.file-view-wrapper { }
.file-info-card { }
.file-name { word-break: break-all; }
.file-meta { display: flex; gap: 20px; flex-wrap: wrap; font-size: 0.85rem; color: var(--text-soft); margin-bottom: 16px; }
.file-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.preview-card { }
.section-title { font-size: 0.95rem; font-weight: 600; color: var(--text-soft); margin-bottom: 14px; }
.pdf-wrapper { border-radius: 10px; overflow: hidden; border: 1px solid var(--border); }
.pdf-frame { width: 100%; height: 75vh; border: none; }
.image-wrapper { text-align: center; }
.preview-image { max-width: 100%; max-height: 75vh; border-radius: 10px; border: 1px solid var(--border); }
.no-preview-icon { font-size: 3rem; margin-bottom: 12px; }

/* ── Dashboard / Stats ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}
.page-title { font-size: 1.6rem; font-weight: 800; color: var(--primary-d); }
.page-subtitle { font-size: 0.9rem; color: var(--text-soft); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--shadow);
}
.stat-card-warn { border-color: var(--warn); }
.stat-icon { font-size: 2rem; }
.stat-value { font-size: 1.6rem; font-weight: 800; color: var(--primary-d); }
.stat-label { font-size: 0.78rem; color: var(--text-soft); font-weight: 500; }

.admin-nav { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.admin-nav-mini { display: flex; gap: 8px; flex-wrap: wrap; }

.quick-links { display: flex; gap: 10px; flex-wrap: wrap; }

/* ── Tables ── */
.table-wrapper { overflow-x: auto; border-radius: 10px; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.data-table th {
  background: rgba(95,158,160,0.12);
  color: var(--primary-d);
  font-weight: 700;
  padding: 10px 14px;
  text-align: left;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
.data-table td {
  padding: 9px 14px;
  border-bottom: 1px solid rgba(181,203,204,0.4);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: rgba(95,158,160,0.05); }
.action-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.file-link { color: var(--primary); font-weight: 500; word-break: break-all; }
.log-details { font-size: 0.78rem; color: var(--text-soft); }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(95,158,160,0.15);
  color: var(--primary-d);
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-yellow {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  background: #fff3cd;
  color: #7d5a00;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-red {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--danger);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  margin-left: 4px;
}
.badge-action-upload { background: #d4f0d4; color: #1a5c1a; }
.badge-action-download { background: #d4e8f0; color: #1a3a5c; }
.badge-action-delete { background: #f0d4d4; color: #5c1a1a; }
.badge-action-login { background: #f0ead4; color: #5c4a1a; }
.badge-action-register { background: #e8d4f0; color: #3a1a5c; }

/* ── Forms (settings) ── */
.settings-form { display: flex; flex-direction: column; gap: 14px; }
.settings-form label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-soft);
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.settings-form label:has(input[type=checkbox]) {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.settings-form input[type=text],
.settings-form input[type=email],
.settings-form input[type=number],
.settings-form input[type=password],
.settings-form select {
  padding: 9px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.93rem;
  background: #fff;
  transition: border-color 0.15s;
}
.settings-form input:focus,
.settings-form select:focus { outline: none; border-color: var(--primary); }
.settings-form input[disabled] { background: #eee; cursor: not-allowed; }
.settings-hint { font-size: 0.83rem; color: var(--text-soft); margin-bottom: 12px; }
.hint { font-size: 0.78rem; font-weight: 400; color: #999; }
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

.token-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.token-row input {
  flex: 1; min-width: 0;
  padding: 7px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: monospace;
  font-size: 0.85rem;
  background: #fff;
}

/* ── Empty states ── */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-soft);
}
.empty-icon { font-size: 3rem; margin-bottom: 10px; }
.empty-state-inline { text-align: center; color: var(--text-soft); padding: 16px 0; font-size: 0.9rem; }

/* ── Filter Row ── */
.filter-row { margin-bottom: 16px; }
.filter-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-form label { font-weight: 600; font-size: 0.9rem; color: var(--text-soft); }
.filter-form select {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 0.88rem;
  color: var(--text);
  cursor: pointer;
}
.uploader-link { font-weight: 600; color: var(--primary); }
.uploader-link:hover { text-decoration: underline; }
.text-soft { color: var(--text-soft); font-size: 0.85rem; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 9999;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transition: opacity 0.3s;
}
.toast-ok { background: #27ae60; color: #fff; }
.toast-err { background: var(--danger); color: #fff; }
.toast.hidden { display: none; }

/* ── Text Preview ── */
.text-preview-wrapper {
  max-height: 600px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #f8fafa;
}
.text-preview {
  padding: 16px 20px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.88rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
  margin: 0;
}

/* ── Utility ── */
.hidden { display: none !important; }
code { background: rgba(95,158,160,0.12); padding: 1px 6px; border-radius: 4px; font-size: 0.88em; color: var(--primary-d); }

/* ── Responsive ── */
@media (max-width: 600px) {
  .hero-title { font-size: 2rem; }
  .form-row-2 { grid-template-columns: 1fr; }
  .nav-inner { flex-wrap: wrap; height: auto; padding: 10px 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .data-table { font-size: 0.78rem; }
  .data-table th, .data-table td { padding: 7px 10px; }
}