/* Mockup Server v2 — minimal but polished design system */

* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-faint: #94a3b8;
  --accent: #2c7be5;
  --accent-hover: #1d63c8;
  --success: #00a86b;
  --warning: #f59e0b;
  --danger: #e74c3c;
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.06);
  --shadow: 0 4px 14px rgba(15,23,42,0.08);
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
code { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 0.92em; background: var(--surface-2); padding: 1px 6px; border-radius: 3px; }

/* ---------- topbar ---------- */
.topbar {
  background: linear-gradient(135deg, #1e2a3a, #2c3e50);
  color: white; padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between;
  box-shadow: var(--shadow-sm); flex-shrink: 0;
}
.topbar-brand { display: flex; align-items: center; gap: 12px; color: white; }
.topbar-logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  background: linear-gradient(135deg, #00a86b, #2c7be5);
  border-radius: 7px; color: white; font-weight: 700;
}
.topbar-name { font-weight: 600; font-size: 15px; display: block; }
.topbar-sub { font-size: 12px; opacity: 0.7; display: block; margin-top: 1px; }
.topbar-nav { display: flex; align-items: center; gap: 14px; font-size: 13px; }
.topbar-nav a { color: rgba(255,255,255,0.85); padding: 6px 12px; border-radius: 6px; }
.topbar-nav a:hover { background: rgba(255,255,255,0.1); color: white; }
.topbar-nav a.active { background: rgba(255,255,255,0.12); color: white; }
.topbar-user { opacity: 0.7; }
.topbar-logout { color: rgba(255,255,255,0.7); border-left: 1px solid rgba(255,255,255,0.2); padding-left: 14px !important; border-radius: 0 !important; }

.main { flex: 1; padding: 28px 0; }
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer { padding: 18px 24px; text-align: center; font-size: 12px; color: var(--text-faint); border-top: 1px solid var(--border); background: var(--surface); }

/* ---------- flash ---------- */
.flash-area { max-width: 960px; margin: 0 auto 18px; padding: 0 24px; }
.flash { padding: 10px 16px; border-radius: var(--radius); margin-bottom: 10px; font-size: 14px; }
.flash-error { background: rgba(231,76,60,0.1); border-left: 4px solid var(--danger); color: #7f1d1d; }
.flash-success { background: rgba(0,168,107,0.1); border-left: 4px solid var(--success); color: #14532d; }

/* ---------- typography helpers ---------- */
h1 { font-size: 1.6rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
h2 { font-size: 1.2rem; font-weight: 600; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; gap: 16px; flex-wrap: wrap; }
.page-head-sub { color: var(--text-muted); font-size: 14px; }

/* ---------- buttons ---------- */
.btn { display: inline-block; padding: 9px 16px; border-radius: 6px; font-size: 13px; font-weight: 500; cursor: pointer; border: 1px solid transparent; text-decoration: none; line-height: 1; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); color: white; }
.btn-secondary { background: var(--surface-2); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--border); color: var(--text); }
.btn-ghost { background: transparent; color: var(--text-muted); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: white; }
.btn-block { display: block; width: 100%; padding: 12px; font-size: 14px; font-weight: 600; }
.btn.disabled { opacity: 0.4; pointer-events: none; }

/* ---------- forms ---------- */
.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.form-card label { display: block; font-size: 13px; color: var(--text); font-weight: 500; margin-bottom: 14px; }
.form-card input[type=text], .form-card input[type=email], .form-card input[type=password], .form-card input[type=number] {
  display: block; width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; margin-top: 4px; background: var(--surface); font-family: inherit;
}
.form-card input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(44,123,229,0.15); }
.form-card input[type=color] { width: 80px; height: 38px; padding: 4px; border-radius: 6px; border: 1px solid var(--border); }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row { display: flex; gap: 22px; margin-bottom: 14px; flex-wrap: wrap; }
.form-check { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }
.form-fieldset { border: 1px solid var(--border); border-radius: 6px; padding: 14px 16px; margin-bottom: 14px; }
.form-fieldset legend { padding: 0 8px; font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; padding-top: 18px; border-top: 1px solid var(--border); margin-top: 4px; }

.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.project-check { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; cursor: pointer; font-weight: 500; margin: 0; }
.project-check.checked { border: 2px solid var(--accent); background: rgba(44,123,229,0.04); padding: 9px 11px; }
.project-check input { margin: 0; }
.project-check-badge { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 6px; color: white; font-weight: 700; font-size: 13px; }
.project-check-name { flex: 1; font-size: 13px; }

.invite-box { background: var(--surface-2); padding: 14px 16px; border-radius: var(--radius); margin: 16px 0; }
.invite-title { font-weight: 600; font-size: 14px; color: var(--text); margin-bottom: 8px; }
.invite-box input[type=text] { width: 100%; font-family: monospace; font-size: 12px; padding: 8px; border: 1px solid var(--border); border-radius: 4px; background: white; }
.invite-meta { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

/* ---------- tables ---------- */
.data-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.data-table th { background: var(--surface-2); text-align: left; padding: 11px 16px; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); font-weight: 600; }
.data-table td { padding: 14px 16px; border-top: 1px solid var(--border); font-size: 13px; vertical-align: middle; }
.cell-strong { font-weight: 600; color: var(--text); }
.cell-muted { color: var(--text-muted); font-size: 12px; }
.cell-actions { text-align: right; }
.cell-actions a { font-size: 12px; }

/* ---------- pills ---------- */
.pill { display: inline-block; padding: 2px 9px; border-radius: 10px; font-size: 11px; font-weight: 600; color: white; margin-right: 4px; }
.pill-admin { background: #f59e0b; color: #fff; }
.pill-viewer { background: #2c7be5; color: #fff; }
.pill-muted { background: #94a3b8; color: white; }
.pill-warn { background: rgba(245,158,11,0.15); color: #b45309; }

/* ---------- viewer ---------- */
.page-viewer { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }
.page-viewer .footer { display: none; }
.viewer-bar { background: linear-gradient(135deg, #1e2a3a, #2c3e50); color: white; padding: 12px 22px; display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; }
.viewer-bar-left, .viewer-bar-right { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.viewer-back { color: rgba(255,255,255,0.75); }
.viewer-back:hover { color: white; }
.viewer-sep { opacity: 0.3; }
.viewer-project .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--badge, var(--accent)); margin-right: 6px; vertical-align: middle; }
.viewer-page { font-weight: 600; opacity: 0.95; }
.viewer-user { opacity: 0.7; }
.viewer-logout { color: rgba(255,255,255,0.7); }
.viewer-subnav { background: var(--surface-2); padding: 10px 18px; border-bottom: 1px solid var(--border); display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: center; flex-shrink: 0; }
.viewer-nav-cell { display: flex; }
.viewer-nav-prev-cell { justify-content: flex-start; }
.viewer-nav-next-cell { justify-content: flex-end; }
.viewer-nav-btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 8px 14px; border: 1px solid var(--border); border-radius: 8px;
  background: white; color: var(--text);
  text-decoration: none; transition: all 0.15s;
  max-width: 320px; min-width: 0;
}
.viewer-nav-btn:hover { border-color: var(--accent); background: rgba(44,123,229,0.04); color: var(--text); transform: translateY(-1px); box-shadow: 0 2px 8px rgba(44,123,229,0.12); }
.viewer-nav-btn.disabled { opacity: 0.45; pointer-events: none; }
.viewer-nav-btn-next { text-align: right; }
.viewer-nav-arrow {
  font-size: 22px; line-height: 1; color: var(--accent);
  font-weight: 600; flex-shrink: 0;
}
.viewer-nav-btn.disabled .viewer-nav-arrow { color: var(--text-faint); }
.viewer-nav-meta { display: flex; flex-direction: column; min-width: 0; }
.viewer-nav-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-muted); font-weight: 600; }
.viewer-nav-title { font-size: 13px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.viewer-nav-center { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.viewer-pagecount { color: var(--text-muted); font-size: 12px; font-weight: 600; padding: 0 6px; }
.viewer-jump { padding: 7px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 12px; background: white; max-width: 200px; cursor: pointer; }
.viewer-jump:hover { border-color: var(--accent); }

@media (max-width: 720px) {
  .viewer-subnav { grid-template-columns: 1fr; gap: 8px; }
  .viewer-nav-prev-cell, .viewer-nav-next-cell { justify-content: stretch; }
  .viewer-nav-btn { max-width: none; width: 100%; }
  .viewer-nav-btn-next { justify-content: flex-end; }
  .viewer-nav-center { justify-content: center; }
}
.viewer-frame { flex: 1; border: 0; width: 100%; background: white; }
.viewer-fragment { flex: 1; overflow-y: auto; padding: 28px; background: var(--bg); }

/* ---------- home / project list ---------- */
.project-list { display: flex; flex-direction: column; gap: 12px; }
.project-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; }
.project-card-head { padding: 16px 20px; display: flex; align-items: center; gap: 14px; cursor: pointer; user-select: none; list-style: none; }
.project-card-head::-webkit-details-marker { display: none; }
.project-badge { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 7px; color: white; font-weight: 700; font-size: 15px; flex-shrink: 0; }
.project-card-text { flex: 1; }
.project-card-name { font-weight: 600; font-size: 15px; color: var(--text); }
.project-card-meta { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.project-card-chev { color: var(--text-muted); font-size: 18px; transition: transform 0.15s; }
.project-card[open] .project-card-chev { transform: rotate(180deg); }
.project-pages { list-style: none; padding: 0 0 8px; }
.project-pages li a { display: flex; align-items: center; justify-content: space-between; padding: 10px 22px; color: var(--text); border-left: 3px solid transparent; }
.project-pages li a:hover { background: var(--surface-2); border-left-color: var(--accent); color: var(--text); }
.project-page-title { font-size: 14px; font-weight: 500; }
.project-page-num { font-size: 11px; color: var(--text-faint); }
.project-pages-empty { padding: 14px 22px; color: var(--text-muted); font-size: 13px; }

/* ---------- auth pages ---------- */
.page-auth { background: linear-gradient(135deg, #1e293b, #334155); align-items: center; justify-content: center; }
.page-auth .footer { display: none; }
.auth-wrap { flex: 1; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card { background: white; padding: 36px 32px; border-radius: 12px; box-shadow: 0 10px 50px rgba(0,0,0,0.25); width: 100%; max-width: 400px; }
.auth-brand { display: flex; align-items: center; gap: 10px; color: var(--text); margin-bottom: 24px; }
.auth-brand-name { font-weight: 700; color: var(--text); font-size: 15px; }
.auth-brand-sub { font-size: 11px; color: var(--text-muted); }
.auth-card h1 { font-size: 1.3rem; margin-bottom: 18px; }
.auth-card label { display: block; font-size: 13px; color: var(--text); font-weight: 500; margin-bottom: 14px; }
.auth-card input[type=email], .auth-card input[type=password], .auth-card input[type=text] {
  display: block; width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; margin-top: 4px; background: white; font-family: inherit;
}
.auth-card input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(44,123,229,0.15); }
.auth-card input:disabled { background: var(--surface-2); color: var(--text-muted); }
.auth-help { font-size: 12px; color: var(--text-muted); margin-top: 16px; text-align: center; }

/* ---------- admin extras ---------- */
.admin-tabs { display: flex; gap: 2px; margin-bottom: 22px; border-bottom: 1px solid var(--border); }
.admin-tabs a { padding: 10px 16px; color: var(--text-muted); font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.admin-tabs a:hover { color: var(--text); }
.admin-tabs a.active { color: var(--accent); border-bottom-color: var(--accent); }
.breadcrumb { font-size: 13px; color: var(--text-muted); margin-bottom: 12px; }

.empty-state { background: var(--surface); border: 2px dashed var(--border); border-radius: var(--radius); padding: 60px 30px; text-align: center; }
.empty-state h1, .empty-state h2 { color: var(--text); margin-bottom: 8px; }
.empty-state p { color: var(--text-muted); font-size: 14px; margin-bottom: 18px; }