/* Lab Journal - Main Stylesheet */

/* CSS Variables */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-secondary: #64748b;
  --color-success: #16a34a;
  --color-warning: #ca8a04;
  --color-danger: #dc2626;
  --color-info: #0891b2;

  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-text: #1e293b;
  --color-text-muted: #64748b;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Navigation */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-brand a {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.nav-user {
  color: var(--color-text-muted);
  padding: 0 0.5rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  margin-top: 3rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.5em;
  line-height: 1.3;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

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

a:hover {
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

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

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

.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.8125rem;
}

.btn-block {
  width: 100%;
}

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

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="search"],
select,
textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

/* Status Badges */
.status-badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.status-completed {
  background: #dcfce7;
  color: #166534;
}

.status-in-progress {
  background: #dbeafe;
  color: #1e40af;
}

.status-planned {
  background: #f3f4f6;
  color: #4b5563;
}

.status-failed {
  background: #fee2e2;
  color: #991b1b;
}

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

/* Dashboard */
.dashboard h1 {
  margin-bottom: 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.action-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.2s;
}

.action-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.action-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

/* Experiment List & Cards */
.experiment-list,
.experiment-cards {
  display: grid;
  gap: 1rem;
}

.experiment-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.experiment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.experiment-date {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.experiment-card h3 {
  margin-bottom: 0.5rem;
}

.experiment-card h3 a {
  color: var(--color-text);
}

.hypothesis-count {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.experiment-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 1.5rem;
}

.timeline-marker {
  position: absolute;
  left: -1.5rem;
  top: 0.25rem;
  width: 1rem;
  height: 1rem;
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: 50%;
}

.timeline-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.timeline-date {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.timeline-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

/* Project Cards */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.project-header {
  margin-bottom: 0.5rem;
}

.project-description {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.project-goals {
  font-size: 0.875rem;
}

.project-goals ul {
  margin: 0.5rem 0 0 0;
  padding-left: 1.25rem;
}

/* Hypothesis Board */
.hypothesis-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  min-height: 500px;
}

.board-column {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.board-column h2 {
  font-size: 1rem;
  text-align: center;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-border);
  margin-bottom: 1rem;
}

.column-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hypothesis-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  font-size: 0.875rem;
}

.hypothesis-card .card-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.hypothesis-id {
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.hypothesis-text {
  margin: 0 0 0.5rem 0;
}

.expected-outcome {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.card-footer {
  margin-top: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}

.experiment-link {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.hypothesis-supported {
  border-left: 3px solid var(--color-success);
}

.hypothesis-rejected {
  border-left: 3px solid var(--color-danger);
}

.hypothesis-partial {
  border-left: 3px solid var(--color-warning);
}

.hypothesis-testing {
  border-left: 3px solid var(--color-info);
}

.hypothesis-proposed {
  border-left: 3px solid var(--color-secondary);
}

/* Hypothesis Box (Experiment Detail) */
.hypothesis-list {
  display: grid;
  gap: 1rem;
}

.hypothesis-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.hypothesis-box .hypothesis-header {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.5rem;
}

.hypothesis-category {
  font-size: 0.75rem;
  padding: 0.125rem 0.5rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

.hypothesis-status {
  font-size: 0.75rem;
  font-weight: 600;
}

.falsification,
.evidence {
  font-size: 0.875rem;
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}

/* Search */
.search-page .search-form {
  margin-bottom: 2rem;
}

.search-input {
  font-size: 1.125rem;
  padding: 0.75rem 1rem;
}

.search-hint {
  text-align: center;
  color: var(--color-text-muted);
  margin: 2rem 0;
}

.search-tips {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  max-width: 500px;
  margin: 0 auto;
}

.search-tips h3 {
  margin-bottom: 0.5rem;
}

.search-results-list {
  display: grid;
  gap: 1rem;
}

.results-count {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.search-result-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.result-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.result-date {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.result-snippet {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin: 0.5rem 0;
}

.hypotheses-preview {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.hypothesis-preview {
  display: flex;
  gap: 0.5rem;
  font-size: 0.8125rem;
  padding: 0.5rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

.result-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* Login */
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 200px);
}

.login-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-md);
}

.login-card h1 {
  text-align: center;
  margin-bottom: 1.5rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* Admin */
.admin-page section {
  margin-bottom: 2rem;
}

.user-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.data-table th {
  background: var(--color-bg);
  font-weight: 600;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.role-badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

.role-admin {
  background: #dbeafe;
  color: #1e40af;
}

.role-researcher {
  background: #dcfce7;
  color: #166534;
}

.role-viewer {
  background: #f3f4f6;
  color: #4b5563;
}

/* Page headers */
.page-header {
  margin-bottom: 2rem;
}

.page-header .meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 0.5rem;
}

.subtitle {
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* Filters */
.filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.filters select,
.filters input {
  max-width: 200px;
}

/* Experiment Detail */
.experiment-detail section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.experiment-detail section:first-of-type {
  margin-top: 1.5rem;
  padding-top: 0;
  border-top: none;
}

.experiment-detail h2 {
  margin-bottom: 1rem;
}

.tools {
  margin: 1rem 0;
}

.tools code {
  display: inline-block;
  margin-right: 0.5rem;
  padding: 0.125rem 0.5rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.commands pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 1rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.key-findings {
  padding-left: 1.25rem;
}

.key-findings li {
  margin-bottom: 0.5rem;
}

.figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
}

.figure-grid figure {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.figure-grid img {
  width: 100%;
  height: auto;
}

.figure-grid figcaption {
  padding: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Empty state */
.empty-state {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem;
}

/* Utilities */
.muted {
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  .navbar {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hypothesis-board {
    grid-template-columns: 1fr;
  }

  .filters {
    flex-direction: column;
  }

  .filters select,
  .filters input {
    max-width: none;
  }
}