:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --success: #16a34a;
  --success-hover: #15803d;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --warning: #f59e0b;
  --warning-hover: #d97706;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Vazirmatn, Tahoma, sans-serif;
  direction: rtl;
  background:
    radial-gradient(circle at top right, #eef2ff 0%, transparent 35%),
    radial-gradient(circle at top left, #ecfeff 0%, transparent 30%), var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* header / nav */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 20px;
}

nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

nav ul li a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: #334155;
  background: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 800;
  transition: 0.2s ease;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
}

nav ul li a:hover {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-1px);
}

/* user session bar */
.user-session-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0 0 18px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.user-session-info {
  color: #334155;
  font-size: 14px;
  font-weight: 700;
}

.user-session-info strong {
  color: #0f172a;
  font-weight: 900;
}

.logout-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  padding: 10px 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--danger), #ef4444);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 10px 22px rgba(220, 38, 38, 0.16);
  transition: 0.22s ease;
}

.logout-link:hover {
  background: linear-gradient(135deg, var(--danger-hover), #dc2626);
  transform: translateY(-2px);
}

/* layout */
.container {
  max-width: 1200px;
  margin: 28px auto;
  padding: 0 16px 32px;
}

.page-section,
.home-page {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* headings */
h1,
h2,
h3 {
  margin: 0 0 8px;
  color: var(--text);
  line-height: 1.4;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.9;
}

/* cards */
.card,
.hero-card,
.big-action-card,
.list-card,
.info-box,
.pending-box {
  background: var(--surface);
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card,
.list-card,
.info-box,
.pending-box {
  padding: 20px;
}

.hero-card {
  padding: 30px;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(6, 182, 212, 0.08)),
    #fff;
}

.hero-card h1 {
  font-size: clamp(28px, 4vw, 40px);
}

.hero-card p {
  max-width: 760px;
  margin: 0 auto;
}

/* home */
.home-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.big-action-card {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 24px;
  transition: 0.25s ease;
  position: relative;
  overflow: hidden;
}

.big-action-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.12);
}

.express-card {
  background:
    linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(99, 102, 241, 0.04)),
    #fff;
}

.post-card {
  background:
    linear-gradient(135deg, rgba(22, 163, 74, 0.1), rgba(34, 197, 94, 0.04)),
    #fff;
}

.big-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-size: 28px;
  margin-bottom: 14px;
  background: var(--surface-soft);
  box-shadow: inset 0 0 0 1px var(--border);
}

/* section header */
.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background: transparent;
}

.header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

/* forms */
.scan-form,
.inline-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.input-row,
.service-input-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

label {
  font-weight: 800;
  color: #334155;
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 15px;
  outline: none;
  transition: 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  background: #fff;
  border-color: rgba(79, 70, 229, 0.55);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

/* buttons */
button,
a.primary-btn,
a.secondary-btn,
a.export-btn,
a.danger-btn,
a.warning-btn {
  text-decoration: none;
}

.primary-btn,
.secondary-btn,
.danger-btn,
.warning-btn,
.export-btn,
.mini-danger-btn,
button {
  border: none;
  border-radius: 14px;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.22s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
}

.primary-btn {
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: #fff;
  box-shadow: 0 10px 22px rgba(79, 70, 229, 0.2);
}

.primary-btn:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--primary-hover), #6d28d9);
}

.secondary-btn {
  background: #fff;
  color: #334155;
  border: 1px solid var(--border);
}

.secondary-btn:hover {
  background: #f8fafc;
  transform: translateY(-1px);
}

.warning-btn {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
  color: #fff;
  box-shadow: 0 10px 22px rgba(245, 158, 11, 0.18);
}

.warning-btn:hover {
  background: linear-gradient(135deg, var(--warning-hover), #f59e0b);
  transform: translateY(-2px);
}

.danger-btn {
  background: linear-gradient(135deg, var(--danger), #ef4444);
  color: #fff;
  box-shadow: 0 10px 22px rgba(220, 38, 38, 0.18);
}

.danger-btn:hover {
  background: linear-gradient(135deg, var(--danger-hover), #dc2626);
  transform: translateY(-2px);
}

.export-btn {
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff;
  box-shadow: 0 12px 24px rgba(34, 197, 94, 0.22);
}

.export-btn::before {
  content: "📊";
  font-size: 15px;
}

.export-btn:hover {
  background: linear-gradient(135deg, #15803d, #16a34a);
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(34, 197, 94, 0.28);
}

.mini-danger-btn {
  background: #fee2e2;
  color: #b91c1c;
  padding: 8px 12px;
  border: 1px solid #fecaca;
  border-radius: 10px;
}

.mini-danger-btn:hover {
  background: #fecaca;
}

/* warning/info */
.warning-card {
  border: 1px solid #fde68a;
  background: linear-gradient(180deg, #fffdf5, #fffaf0);
}

.suggested-text {
  color: #92400e;
  font-weight: 800;
}

.info-box {
  background: linear-gradient(180deg, #f8fbff, #f1f5f9);
  border-style: dashed;
}

.pending-box {
  background: linear-gradient(180deg, #fff7ed, #fffbeb);
  border: 1px solid #fed7aa;
}

.small-text,
.empty-text {
  color: var(--muted);
  font-size: 14px;
}

.empty-text {
  text-align: center;
  padding: 18px 10px;
}

/* flash messages */
.flashes {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.flashes li {
  padding: 14px 16px;
  border-radius: 14px;
  font-weight: 800;
  border: 1px solid transparent;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.flashes .success {
  background: #dcfce7;
  color: #166534;
  border-color: #86efac;
}

.flashes .error,
.flashes .danger {
  background: #fee2e2;
  color: #991b1b;
  border-color: #fca5a5;
}

.flashes .warning {
  background: #fef3c7;
  color: #92400e;
  border-color: #fcd34d;
}

/* post page grid */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.post-column {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-card h2,
.list-card h3 {
  margin-bottom: 12px;
}

/* tables */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border-radius: 14px;
}

table {
  width: 100%;
  min-width: 420px;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
}

thead th {
  background: #f8fafc;
  color: #334155;
  font-size: 14px;
  font-weight: 900;
  padding: 14px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
}

tbody td {
  padding: 13px 12px;
  border-bottom: 1px solid #eef2f7;
  text-align: center;
  vertical-align: middle;
}

tbody tr:hover td {
  background: #fafcff;
}

.ltr {
  direction: ltr;
  text-align: left;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* responsive */
@media (max-width: 1024px) {
  .post-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    margin: 18px auto;
    padding: 0 12px 24px;
  }

  .hero-card,
  .card,
  .list-card,
  .info-box,
  .pending-box {
    padding: 16px;
  }

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

  .section-header {
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .input-row,
  .service-input-row {
    flex-direction: column;
  }

  .primary-btn,
  .secondary-btn,
  .danger-btn,
  .warning-btn,
  .export-btn,
  button,
  .logout-link {
    width: 100%;
  }

  .user-session-bar {
    flex-direction: column;
    align-items: stretch;
  }

  table {
    min-width: 520px;
  }
}