/* Projects list + Project editor — same glassy dark theme */
:root {
  --bg-dark: #0a0a0c;
  --bg-card: rgba(18, 18, 22, 0.72);
  --glass-border: rgba(255, 255, 255, 0.08);
  --tan: #c4a77d;
  --blue: #5b8def;
  --blue-hover: #7aa3f5;
  --gray-2: #2c2c30;
  --gray-3: #8e8e93;
  --gray-4: #aeaeb2;
  --text: #f5f5f7;
  --text-muted: #98989d;
  --radius: 14px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --backdrop-blur: 20px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  display: flex;
  flex-direction: column;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(91, 141, 239, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 60%, rgba(196, 167, 125, 0.06), transparent);
}

/* ——— Shared header (projects + project pages) ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 16px 24px;
  background: rgba(10, 10, 12, 0.7);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border-bottom: 1px solid var(--glass-border);
}

.site-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  color: var(--text);
  text-decoration: none;
}

.site-logo:hover { color: var(--text); }

.site-logo-img {
  height: 28px;
  width: auto;
  max-width: 120px;
  max-height: 28px;
  display: block;
  object-fit: contain;
}

.site-nav a {
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.site-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.site-nav a.active { color: var(--blue); font-weight: 500; }

.site-nav .btn-projects {
  padding: 8px 16px;
  color: var(--blue);
  font-weight: 500;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  background: rgba(91, 141, 239, 0.1);
}

.site-nav .btn-projects:hover {
  background: rgba(91, 141, 239, 0.2);
  color: var(--blue-hover);
}

.site-nav .btn-logout {
  padding: 8px 14px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.9rem;
}

.site-nav .btn-logout:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.site-nav .btn-apanel {
  padding: 8px 14px;
  color: var(--tan);
  font-weight: 500;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  background: rgba(196, 167, 125, 0.12);
}

.site-nav .btn-apanel:hover {
  background: rgba(196, 167, 125, 0.22);
  color: var(--tan);
}

/* ——— Projects list page ——— */
.projects-main {
  flex: 1;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.projects-main h1 {
  margin: 0 0 8px;
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.projects-main .subtitle {
  margin: 0 0 32px;
  color: var(--text-muted);
  font-size: 1rem;
}

.btn-new-project {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  margin-bottom: 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(180deg, var(--blue) 0%, #4a7ad4 100%);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 2px 12px rgba(91, 141, 239, 0.35);
  transition: background 0.2s, transform 0.1s;
}

.btn-new-project:hover {
  background: linear-gradient(180deg, var(--blue-hover) 0%, var(--blue) 100%);
}

.btn-new-project:active { transform: scale(0.99); }

.projects-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-card {
  display: block;
  padding: 20px 24px;
  background: var(--bg-card);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.project-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  color: var(--text);
}

.project-card h3 {
  margin: 0 0 4px;
  font-size: 1.1rem;
  font-weight: 600;
}

.project-card .meta {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.projects-empty {
  padding: 48px 24px;
  text-align: center;
  background: var(--bg-card);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  color: var(--text-muted);
}

.projects-empty h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  color: var(--text);
}

/* ——— New project modal ——— */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 24px;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  width: 100%;
  max-width: 400px;
  background: var(--bg-card);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

.modal h2 {
  margin: 0 0 20px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}

.modal input {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 16px;
  font-size: 1rem;
  color: var(--text);
  background: rgba(28, 28, 31, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  outline: none;
}

.modal input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(91, 141, 239, 0.25);
}

.modal-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--gray-4);
}

.modal-select {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 16px;
  font-size: 1rem;
  color: var(--text);
  background: rgba(28, 28, 31, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  outline: none;
  cursor: pointer;
}

.modal-select:focus {
  border-color: var(--blue);
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.modal-actions button {
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: background 0.2s;
}

.modal-actions .btn-cancel {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.modal-actions .btn-cancel:hover {
  background: rgba(255, 255, 255, 0.12);
}

.modal-actions .btn-create {
  background: var(--blue);
  color: #fff;
}

.modal-actions .btn-create:hover {
  background: var(--blue-hover);
}

/* ——— Project editor layout ——— */
.project-layout {
  flex: 1;
  display: flex;
  min-height: 0;
}

.project-sidebar {
  width: 280px;
  min-width: 280px;
  background: rgba(18, 18, 22, 0.6);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.project-sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.project-sidebar-header h2 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.sidebar-visibility {
  margin-bottom: 12px;
}

.sidebar-visibility-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.sidebar-visibility-select {
  width: 100%;
  padding: 6px 10px;
  font-size: 0.85rem;
  color: var(--text);
  background: rgba(28, 28, 31, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  outline: none;
  cursor: pointer;
}

.sidebar-visibility-select:focus {
  border-color: var(--blue);
}

.sidebar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sidebar-actions button {
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--blue);
  background: rgba(91, 141, 239, 0.15);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.sidebar-actions button:hover {
  background: rgba(91, 141, 239, 0.25);
  color: var(--blue-hover);
}

.tree-container {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
}

.tree-node {
  margin: 0;
  list-style: none;
  padding-left: 0;
}

.tree-node ul {
  margin: 0;
  padding-left: 20px;
  list-style: none;
  border-left: 1px solid var(--glass-border);
  margin-left: 6px;
}

.tree-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  margin: 2px 0;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text);
  user-select: none;
}

.tree-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.tree-item.selected {
  background: rgba(91, 141, 239, 0.2);
  color: var(--blue);
}

.tree-item .tree-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  opacity: 0.8;
}

.tree-item .tree-label {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tree-item.toggle-closed + ul { display: none; }

.tree-toggle {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  font-size: 0.7rem;
}

.tree-toggle:hover { color: var(--text); }

.tree-toggle.empty { visibility: hidden; }

/* ——— Main editor area ——— */
.project-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.editor-placeholder {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  color: var(--text-muted);
  font-size: 0.95rem;
  text-align: center;
}

.editor-panel {
  flex: 1;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.editor-panel.show {
  display: flex;
}

.editor-header {
  padding: 12px 20px;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.editor-header input {
  width: 100%;
  max-width: 400px;
  padding: 8px 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: rgba(28, 28, 31, 0.6);
  border: 1px solid transparent;
  border-radius: 8px;
  outline: none;
}

.editor-header input:focus {
  border-color: var(--glass-border);
}

.editor-body {
  flex: 1;
  padding: 20px;
  overflow: auto;
}

.editor-body textarea {
  width: 100%;
  min-height: 300px;
  padding: 16px;
  font-size: 0.95rem;
  font-family: inherit;
  line-height: 1.6;
  color: var(--text);
  background: rgba(28, 28, 31, 0.5);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  outline: none;
  resize: vertical;
}

.editor-body textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 2px rgba(91, 141, 239, 0.2);
}

.save-hint {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.save-hint.saved { color: var(--success); }