/* ========================================
   Seshat — Visual Theme
   Scholarly, warm, approachable
   ======================================== */

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

:root {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-border: #e4dfd8;
  --color-border-light: #f0ece6;
  --color-text: #2d2a27;
  --color-text-muted: #7a736b;
  --color-text-light: #a09890;
  --color-accent: #4a7c7e;
  --color-accent-hover: #3a6365;
  --color-accent-light: #e8f0f0;
  --color-success: #4a7a52;
  --color-success-hover: #3d6544;
  --color-danger: #9e4a4a;
  --color-danger-hover: #833d3d;
  --color-code-bg: #1e2530;
  --color-code-text: #e2dfd8;
  --font-heading: Georgia, Cambria, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
  --radius: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
  --max-width: 960px;
}

body {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: normal;
  color: var(--color-text);
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.15rem;
  margin: 1.25rem 0 0.5rem;
  color: var(--color-text-muted);
}

h4 {
  font-size: 1rem;
  margin: 0.75rem 0 0.4rem;
}

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

a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

p {
  margin-bottom: 0.75rem;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  gap: 1rem;
}

.header-brand {
  flex-shrink: 0;
}

.site-header h1 {
  font-size: 1.6rem;
  letter-spacing: 0.02em;
  margin-bottom: 0;
  line-height: 1.2;
}

.site-header h1 a {
  color: var(--color-text);
  text-decoration: none;
}

.site-header h1 a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.tagline {
  font-size: 0.82rem;
  color: var(--color-text-light);
  font-style: italic;
  margin: 0;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.site-nav > a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s ease;
}

.site-nav > a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-signin {
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  color: var(--color-accent) !important;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-signin:hover {
  background: var(--color-accent);
  color: white !important;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding-left: 1rem;
  border-left: 1px solid var(--color-border);
}

.user-info {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.badge-pro {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-accent);
  color: white;
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  vertical-align: middle;
}

.inline-form {
  display: inline;
}

button.btn-link,
button.btn-link[type="submit"] {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 0.82rem;
  font-family: inherit;
  padding: 0;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
  transition: color 0.15s ease;
}

button.btn-link:hover,
button.btn-link[type="submit"]:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
  background: none;
  box-shadow: none;
}

/* Text inputs */
.input-text {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input-text::placeholder {
  color: var(--color-text-light);
}

.input-text:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

/* Full-width button */
.btn-full {
  display: block;
  width: 100%;
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
}

/* Auth card */
.auth-card {
  max-width: 420px;
}

/* File drop zone */
.file-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  margin: 1rem 0;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.file-drop:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.file-drop-active {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
  border-style: solid;
}

.file-drop-has-file {
  border-color: var(--color-accent);
  border-style: solid;
  background: var(--color-accent-light);
}

.file-drop-input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.file-drop-icon {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.file-drop-text {
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.file-drop-browse {
  color: var(--color-accent);
  font-weight: 500;
  text-decoration: underline;
}

.file-drop-hint {
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-top: 0.35rem;
}

.file-drop-name {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-accent-hover);
  margin-top: 0.5rem;
}

.file-drop-name:empty {
  display: none;
}

/* Pricing */
.pricing-section {
  text-align: center;
}

.pricing-section h2 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
}

.pricing-subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 720px;
  margin: 0 auto;
  text-align: left;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  overflow: hidden;
  position: relative;
}

.pricing-card-header {
  padding: 1.75rem 1.75rem 1rem;
}

.pricing-card-header h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin: 0 0 0.5rem;
}

.pricing-card .price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: normal;
  color: var(--color-text);
  line-height: 1;
  margin: 0;
}

.price-unit {
  font-size: 1rem;
  color: var(--color-text-muted);
  font-weight: normal;
}

.price-period {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin: 0.35rem 0 0;
}

.price-save {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent-hover);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.feature-list {
  list-style: none;
  padding: 0 1.75rem;
  margin: 0;
  flex: 1;
}

.feature-list li {
  padding: 0.4rem 0;
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.88rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.82rem;
}

.pricing-card-footer {
  padding: 1.25rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.btn-pricing {
  display: block;
  width: 100%;
  padding: 0.65rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.88rem;
  font-family: var(--font-body);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.btn-pricing:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
  text-decoration: none;
}

.btn-pricing-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  font-weight: 500;
}

.btn-pricing-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: white;
}

.btn-pricing-outline {
  background: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-pricing-outline:hover {
  background: var(--color-accent-light);
}

.pricing-card-featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-md);
}

.pricing-card-badge {
  background: var(--color-accent);
  color: white;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
  padding: 0.35rem 0;
}

.pricing-actions {
  margin: 0;
}

@media (max-width: 640px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-user {
    padding-left: 0;
    border-left: none;
  }

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

/* Legacy header support (old class) */
header h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  letter-spacing: 0.02em;
  margin-bottom: 0.15rem;
  padding-bottom: 0;
  border-bottom: none;
}

header h1 a {
  text-decoration: none;
  color: var(--color-text);
}

/* Sections */
section {
  margin: 1.5rem 0;
}

/* Cards — wrap content sections for visual grouping */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

/* Forms */
.form-group {
  margin: 1rem 0;
}

label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

input[type="file"] {
  display: block;
  margin: 0.5rem 0;
  font-size: 0.9rem;
}

textarea {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  resize: vertical;
  line-height: 1.5;
}

textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent-light);
}

/* Buttons */
button, .btn-download {
  display: inline-block;
  padding: 0.55rem 1.15rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.88rem;
  font-family: var(--font-body);
  text-decoration: none;
  margin-right: 0.5rem;
  margin-top: 0.5rem;
  transition: background 0.15s ease, box-shadow 0.15s ease;
}

button[type="submit"] {
  background: var(--color-accent);
  color: white;
}

button[type="submit"]:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-sm);
}

.btn-accept {
  background: var(--color-success);
  color: white;
}

.btn-accept:hover {
  background: var(--color-success-hover);
}

.btn-reject {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.btn-reject:hover {
  background: var(--color-danger);
  color: white;
}

.btn-download {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  font-size: 0.82rem;
  padding: 0.4rem 0.85rem;
}

.btn-download:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.5rem 0;
  font-size: 0.88rem;
}

th, td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

th {
  background: var(--color-bg);
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--color-border);
}

tr:hover {
  background: var(--color-accent-light);
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.table-wrapper table {
  margin: 0;
}

.table-wrapper th:first-child,
.table-wrapper td:first-child {
  padding-left: 1rem;
}

.table-wrapper th:last-child,
.table-wrapper td:last-child {
  padding-right: 1rem;
}

/* Schema */
.table-schema {
  margin: 1.25rem 0;
}

.table-schema h4 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: normal;
  margin-bottom: 0.5rem;
}

.schema-sql pre {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 1.25rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.6;
  font-family: var(--font-mono);
}

/* Query */
.query-section {
  display: grid;
  grid-template-columns: 180px 1fr;
  grid-template-rows: auto auto;
  gap: 1.5rem;
}

.query-section h2 {
  grid-column: 1 / -1;
}

.tables-list {
  grid-row: 2;
}

.tables-list ul {
  list-style: none;
}

.tables-list li {
  margin-bottom: 0.15rem;
}

.tables-list a {
  display: block;
  padding: 0.35rem 0.6rem;
  color: var(--color-accent);
  text-decoration: none;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.tables-list a:hover {
  background: var(--color-accent-light);
  text-decoration: none;
}

.query-editor {
  grid-row: 2;
}

#results {
  grid-column: 1 / -1;
}

.results-info {
  margin: 0.5rem 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin: 0.75rem 0;
  font-size: 0.9rem;
}

.alert-error {
  background: #fdf2f0;
  color: #8b3a30;
  border: 1px solid #f0ccc6;
}

.alert-warning {
  background: #fdf8ed;
  color: #7a6530;
  border: 1px solid #ede0b8;
}

.placeholder {
  color: var(--color-text-light);
  font-style: italic;
  padding: 2.5rem;
  text-align: center;
  font-size: 0.95rem;
}

/* Actions */
.actions {
  margin: 1.75rem 0;
}

.query-hint {
  margin: 0.35rem 0 0;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.query-hint a {
  color: var(--color-text-muted);
  text-decoration: underline;
}

.query-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 640px) {
  .query-section {
    grid-template-columns: 1fr;
  }
  
  .tables-list {
    grid-row: auto;
  }
  
  .query-editor {
    grid-row: auto;
  }
}