@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600&display=swap');

/* ══════════════════════════════════
   FreeMalta Hub — Global Shell CSS
   Monochrome. Clean. Claude-like.
   ══════════════════════════════════ */

:root {
  --hub-sidebar-w: 240px;
  --hub-bg: #ffffff;
  --hub-sidebar-bg: #fafafa;
  --hub-border: rgba(0,0,0,0.08);
  --hub-text: #171717;
  --hub-text-soft: #6b6b6b;
  --hub-text-muted: #a3a3a3;
  --hub-active-bg: #f0f0f0;
  --hub-hover-bg: #f5f5f5;
  --hub-radius: 6px;
  --hub-nav-h: 52px;
}

[data-theme="dark"] {
  --hub-bg: #0a0a0a;
  --hub-sidebar-bg: #111111;
  --hub-border: rgba(255,255,255,0.08);
  --hub-text: #ededed;
  --hub-text-soft: #a3a3a3;
  --hub-text-muted: #525252;
  --hub-active-bg: #1f1f1f;
  --hub-hover-bg: #161616;
}

[data-theme="light"] {
  --hub-bg: #ffffff;
  --hub-sidebar-bg: #fafafa;
  --hub-border: rgba(0,0,0,0.08);
  --hub-text: #171717;
  --hub-text-soft: #6b6b6b;
  --hub-text-muted: #a3a3a3;
  --hub-active-bg: #f0f0f0;
  --hub-hover-bg: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --hub-bg: #0a0a0a;
    --hub-sidebar-bg: #111111;
    --hub-border: rgba(255,255,255,0.08);
    --hub-text: #ededed;
    --hub-text-soft: #a3a3a3;
    --hub-text-muted: #525252;
    --hub-active-bg: #1f1f1f;
    --hub-hover-bg: #161616;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  font-family: 'Geist', -apple-system, system-ui, sans-serif;
  background: var(--hub-bg);
  color: var(--hub-text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── LAYOUT ── */
.hub-layout {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ── */
.hub-sidebar {
  width: var(--hub-sidebar-w);
  flex-shrink: 0;
  border-right: 1px solid var(--hub-border);
  background: var(--hub-sidebar-bg);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 200;
  display: flex;
  flex-direction: column;
}

.hub-sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding-bottom: 16px;
}

/* ── LOGO ── */
.hub-logo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--hub-border);
  margin-bottom: 8px;
}

.hub-logo-link {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hub-logo-fm {
  font-size: 14px;
  font-weight: 600;
  color: var(--hub-text);
  letter-spacing: -0.02em;
}

.hub-mobile-close {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--hub-text-soft);
  font-size: 18px;
  padding: 4px;
}

/* ── NAV ── */
.hub-nav {
  flex: 1;
  padding: 0 8px;
  overflow-y: auto;
}

.hub-nav-section {
  margin-bottom: 20px;
}

.hub-nav-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hub-text-muted);
  padding: 0 8px;
  margin-bottom: 4px;
}

.hub-nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: var(--hub-radius);
  font-size: 13px;
  color: var(--hub-text-soft);
  text-decoration: none;
  transition: background 0.1s, color 0.1s;
  cursor: pointer;
  position: relative;
}

.hub-nav-item i {
  font-size: 15px;
  flex-shrink: 0;
}

.hub-nav-item:hover {
  background: var(--hub-hover-bg);
  color: var(--hub-text);
}

.hub-nav-item.active {
  background: var(--hub-active-bg);
  color: var(--hub-text);
  font-weight: 500;
}

.hub-nav-item-muted {
  color: var(--hub-text-soft);
  font-size: 13px;
}

.hub-nav-ext {
  margin-left: auto;
  font-size: 11px;
  opacity: 0.5;
}

/* ── SIDEBAR FOOTER ── */
.hub-footer {
  padding: 12px 8px 0;
  border-top: 1px solid var(--hub-border);
}

/* ── MAIN CONTENT ── */
.hub-main {
  margin-left: var(--hub-sidebar-w);
  flex: 1;
  min-height: 100vh;
  background: var(--hub-bg);
  overflow-x: hidden;
}

/* ── TOPBAR (mobile) ── */
.hub-topbar {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  height: var(--hub-nav-h);
  border-bottom: 1px solid var(--hub-border);
  position: sticky;
  top: 0;
  background: var(--hub-bg);
  z-index: 100;
}

.hub-topbar-menu {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--hub-text);
  font-size: 20px;
  display: flex;
  align-items: center;
}

.hub-topbar-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--hub-text);
}

/* ── MOBILE OVERLAY ── */
.hub-mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 199;
}

/* ══════════════════════════════════
   CONTENT AREA
   ══════════════════════════════════ */

.hub-content {
  max-width: 880px;
  margin: 0 auto;
  padding: 40px 32px 80px;
  overflow-x: hidden;
}

.hub-page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--hub-border);
}

.hub-page-eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hub-text-muted);
  margin-bottom: 8px;
  font-family: monospace;
}

.hub-page-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--hub-text);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 8px;
}

.hub-page-sub {
  font-size: 14px;
  color: var(--hub-text-soft);
  line-height: 1.6;
  max-width: 560px;
}

/* ── STAT CARDS ── */
.hub-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 32px;
}

.hub-stat {
  background: var(--hub-sidebar-bg);
  border: 1px solid var(--hub-border);
  border-radius: 8px;
  padding: 16px;
}

.hub-stat-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hub-text-muted);
  margin-bottom: 6px;
  font-family: monospace;
}

.hub-stat-value {
  font-size: 22px;
  font-weight: 600;
  color: var(--hub-text);
  letter-spacing: -0.02em;
  line-height: 1;
}

.hub-stat-sub {
  font-size: 11px;
  color: var(--hub-text-muted);
  margin-top: 4px;
}

/* ── TWO-COLUMN GRID (content + sticky sidebar) ── */
.hub-calc-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  align-items: start;
}

.hub-calc-sticky {
  position: sticky;
  top: 24px;
}

.hub-card {
  background: var(--hub-bg);
  border: 1px solid var(--hub-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 12px;
}

.hub-card-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--hub-text-muted);
  margin-bottom: 14px;
  font-family: monospace;
}

/* ── FORM ELEMENTS ── */
.hub-field { margin-bottom: 14px; }
.hub-field:last-child { margin-bottom: 0; }

.hub-label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--hub-text-soft);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.hub-input,
.hub-select {
  width: 100%;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--hub-text);
  background: var(--hub-sidebar-bg);
  border: 1px solid var(--hub-border);
  border-radius: 6px;
  outline: none;
  font-family: inherit;
  transition: border-color 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.hub-input:focus,
.hub-select:focus { border-color: var(--hub-text-soft); }

.hub-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath fill='%23a3a3a3' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.hub-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ── RESULT PANEL ── */
.hub-result {
  background: var(--hub-sidebar-bg);
  border: 1px solid var(--hub-border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 12px;
}

.hub-result-main {
  font-size: 36px;
  font-weight: 600;
  color: var(--hub-text);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 4px;
}

.hub-result-sub { font-size: 12px; color: var(--hub-text-muted); }

.hub-result-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 20px;
  margin-top: 10px;
}

.hub-status-safe { background: #f0fdf4; color: #166534; }
.hub-status-moderate { background: #fffbeb; color: #92400e; }
.hub-status-risk { background: #fef2f2; color: #991b1b; }

@media (prefers-color-scheme: dark) {
  .hub-status-safe { background: #052e16; color: #4ade80; }
  .hub-status-moderate { background: #1c1400; color: #fbbf24; }
  .hub-status-risk { background: #1c0000; color: #f87171; }
}

[data-theme="dark"] .hub-status-safe { background: #052e16; color: #4ade80; }
[data-theme="dark"] .hub-status-moderate { background: #1c1400; color: #fbbf24; }
[data-theme="dark"] .hub-status-risk { background: #1c0000; color: #f87171; }

.hub-breakdown { display: flex; flex-direction: column; gap: 0; }

.hub-breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--hub-border);
  font-size: 13px;
}
.hub-breakdown-row:last-child { border-bottom: none; }
.hub-breakdown-key { color: var(--hub-text-soft); }
.hub-breakdown-val {
  font-weight: 500;
  color: var(--hub-text);
  font-variant-numeric: tabular-nums;
}

.hub-breakdown-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  margin-top: 8px;
  border-top: 1px solid var(--hub-text);
  font-size: 14px;
  font-weight: 600;
}

/* ── TOGGLE ── */
.hub-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--hub-border);
}
.hub-toggle-row:last-child { border-bottom: none; }
.hub-toggle-label { font-size: 13px; color: var(--hub-text); }
.hub-toggle-sub { font-size: 11px; color: var(--hub-text-muted); margin-top: 1px; }

.hub-toggle-track {
  width: 36px;
  height: 20px;
  background: var(--hub-border);
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  transition: background 0.2s;
  flex-shrink: 0;
}
.hub-toggle-track.on { background: var(--hub-text); }
.hub-toggle-dot {
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  position: absolute;
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
}
.hub-toggle-track.on .hub-toggle-dot { transform: translateX(16px); }

/* ── PROPERTY GRID ── */
.hub-prop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.hub-prop-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--hub-border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--hub-text-soft);
  transition: all 0.1s;
  background: var(--hub-sidebar-bg);
}
.hub-prop-item:hover { border-color: var(--hub-text-soft); color: var(--hub-text); }
.hub-prop-item.selected {
  border-color: var(--hub-text);
  color: var(--hub-text);
  font-weight: 500;
  background: var(--hub-active-bg);
}
.hub-prop-item i { font-size: 16px; }

/* ── FAQ ── */
.hub-faq {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--hub-border);
}

.hub-faq-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--hub-text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hub-faq-item { border-bottom: 1px solid var(--hub-border); }

.hub-faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--hub-text);
  gap: 12px;
}

.hub-faq-q i {
  font-size: 16px;
  color: var(--hub-text-muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.hub-faq-item.open .hub-faq-q i { transform: rotate(180deg); }

.hub-faq-a {
  display: none;
  font-size: 13px;
  color: var(--hub-text-soft);
  line-height: 1.7;
  padding-bottom: 14px;
}

.hub-faq-item.open .hub-faq-a { display: block; }

/* ── PARTNER CTA STRIP ── */
.hub-partner-strip {
  margin-top: 40px;
  padding: 20px;
  background: var(--hub-sidebar-bg);
  border: 1px solid var(--hub-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.hub-partner-strip-text { font-size: 13px; color: var(--hub-text-soft); line-height: 1.5; }
.hub-partner-strip-text strong {
  display: block;
  font-size: 14px;
  color: var(--hub-text);
  font-weight: 600;
  margin-bottom: 2px;
}

.hub-partner-strip-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--hub-text);
  color: var(--hub-bg);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.15s;
  flex-shrink: 0;
}
.hub-partner-strip-cta:hover { opacity: 0.85; }

/* ══════════════════════════════════
   RESPONSIVE — MOBILE FIRST
   ══════════════════════════════════ */

@media (max-width: 768px) {

  /* Sidebar */
  .hub-sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .hub-sidebar.open { transform: translateX(0); }
  .hub-mobile-close { display: block; }
  .hub-mobile-overlay.open { display: block; }
  .hub-main { margin-left: 0; }
  .hub-topbar { display: flex; }

  /* Content */
  .hub-content { padding: 20px 14px 60px; }

  /* Two-column → single column */
  .hub-calc-grid { grid-template-columns: 1fr; }
  .hub-calc-sticky { position: static; }
  .hub-form-row { grid-template-columns: 1fr; }
  .hub-stats { grid-template-columns: repeat(2, 1fr); }
  .hub-prop-grid { grid-template-columns: 1fr; }

  /* Stack pages — flow diagram: horizontal scroll */
  .stack-flow {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: 8px;
    margin-right: -14px;
    padding-right: 14px;
  }
  .stack-flow-step {
    min-width: 85px;
    flex-shrink: 0;
  }

  /* Stack pages — two-col grids → single */
  .honest-grid,
  .schema-grid,
  .concept-grid,
  .pairs-grid,
  .stack-related,
  .n8n-usecases,
  .n8n-honest,
  .fm-prop-list,
  .seo-trio,
  .skills-grid,
  .about-grid,
  .scenario-grid,
  .permit-grid,
  .gap-visual,
  .firm-grid,
  .lai-courses,
  .partner-hero { grid-template-columns: 1fr; }

  /* Keep 2-col for smaller grids */
  .wi-stats,
  .stat-grid,
  .n8n-integrations { grid-template-columns: repeat(2, 1fr); }

  /* Partners grid */
  .partners-grid { grid-template-columns: repeat(2, 1fr); }

  /* N8N nodes flow */
  .n8n-nodes {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
  }
  .n8n-node { flex-shrink: 0; }

  /* Partner hero flex */
  .partner-hero { flex-direction: column; gap: 16px; }
  .stack-fm-cta { flex-direction: column; }
  .contact-strip { flex-direction: column; align-items: flex-start; }

  /* Learn AI */
  .lai-logo-wrap { gap: 10px; }
  .lai-stats { gap: 16px; }

  /* Font size adjustments */
  .hub-page-title { font-size: 22px; }
  .stack-title,
  .n8n-title { font-size: clamp(1.4rem, 5vw, 2rem); }
  .hub-result-main { font-size: 28px; }
}

@media (max-width: 400px) {
  .partners-grid { grid-template-columns: 1fr; }
  .wi-stats,
  .stat-grid { grid-template-columns: 1fr; }
  .n8n-integrations { grid-template-columns: repeat(2, 1fr); }
}