/* ============================================================
   PIA Article 4 HMO Checker — design tokens & layout
   ============================================================ */
:root {
  --pia-navy: #102C57;
  --pia-navy-deep: #0A1F3D;
  --pia-cyan: #26D0CE;
  --pia-cyan-bright: #00E5E5;

  --pia-white: #FFFFFF;
  --pia-off-white: #F5F7FA;
  --pia-grey-light: #E5E9F0;
  --pia-grey: #94A3B8;
  --pia-grey-dark: #475569;
  --pia-text: #1F2937;

  --status-red: #DC2626;
  --status-green: #16A34A;
  --status-amber: #F59E0B;

  --shadow-card: 0 1px 3px rgba(16, 44, 87, 0.08), 0 4px 12px rgba(16, 44, 87, 0.06);
  --shadow-card-hover: 0 4px 12px rgba(16, 44, 87, 0.12), 0 12px 28px rgba(16, 44, 87, 0.08);

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;

  --max: 1120px;
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--pia-text);
  background: var(--pia-white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
input, button, select, textarea { font-family: inherit; font-size: inherit; }
a { color: var(--pia-navy); }
a:hover { color: var(--pia-cyan-bright); }
h1, h2, h3, h4 { color: var(--pia-navy); margin: 0 0 0.5em; line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.75rem, 4vw + 1rem, 3rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2.25rem); font-weight: 700; }
h3 { font-size: clamp(1.15rem, 0.8vw + 1rem, 1.5rem); font-weight: 700; }
p { margin: 0 0 1rem; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.cyan { color: var(--pia-cyan); }
[hidden] { display: none !important; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  background: var(--pia-navy);
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo-link { display: inline-flex; align-items: center; }
.logo-link img { height: 44px; width: auto; }
.header-nav { display: none; gap: 24px; align-items: center; }
.header-nav a { color: var(--pia-white); text-decoration: none; font-size: 0.9rem; opacity: 0.85; }
.header-nav a:hover { opacity: 1; color: var(--pia-cyan); }
@media (min-width: 768px) { .header-nav { display: flex; } }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  background: linear-gradient(160deg, var(--pia-navy) 0%, var(--pia-navy-deep) 100%);
  color: var(--pia-white);
  padding: 56px 0 72px;
  position: relative;
}
.hero h1 { color: var(--pia-white); max-width: 800px; margin-bottom: 16px; }
.hero-sub {
  font-size: clamp(1rem, 0.5vw + 0.95rem, 1.2rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 700px;
  margin: 0 0 32px;
}

.check-form {
  background: var(--pia-white);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
  max-width: 720px;
}
.check-form__inputs { display: grid; grid-template-columns: 1fr; gap: 12px; margin-bottom: 16px; }
@media (min-width: 600px) { .check-form__inputs { grid-template-columns: 1fr 1.4fr; } }
.check-form input[type=text] {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--pia-grey-light);
  border-radius: var(--r-md);
  background: var(--pia-off-white);
  color: var(--pia-text);
  font-size: 1.05rem;
  transition: border-color 0.15s, background 0.15s;
}
.check-form input[type=text]:focus {
  outline: none;
  border-color: var(--pia-cyan);
  background: var(--pia-white);
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--pia-cyan);
  color: var(--pia-white);
  border: none;
  border-radius: var(--r-md);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  width: 100%;
  transition: background 0.15s, transform 0.05s;
}
.btn-cta:hover { background: var(--pia-cyan-bright); }
.btn-cta:active { transform: translateY(1px); }
.btn-cta:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-cta--small { padding: 10px 18px; font-size: 1rem; width: auto; }
.trust-line {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.78);
  margin: 20px 0 0;
}
.hero .check-form .trust-line { color: var(--pia-grey-dark); }

.error-msg {
  margin-top: 12px;
  color: var(--status-red);
  font-size: 0.9rem;
  font-weight: 600;
}

/* ============================================================
   Results sections
   ============================================================ */
.results {
  background: var(--pia-off-white);
  padding: 48px 0 16px;
}
.result-section {
  margin-bottom: 28px;
}

/* Section A — status banner */
.banner {
  border-radius: var(--r-lg);
  padding: 28px 28px 24px;
  color: var(--pia-white);
  box-shadow: var(--shadow-card);
}
.banner--red { background: linear-gradient(135deg, #DC2626 0%, #991B1B 100%); }
.banner--green { background: linear-gradient(135deg, #16A34A 0%, #166534 100%); }
.banner--amber { background: linear-gradient(135deg, #F59E0B 0%, #B45309 100%); }
.banner__status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.15);
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.banner__title { color: var(--pia-white); margin-bottom: 8px; font-size: clamp(1.4rem, 2vw + 0.5rem, 2rem); }
.banner__address { font-size: 1.05rem; opacity: 0.92; margin-bottom: 12px; }
.banner__details { font-size: 0.95rem; opacity: 0.88; margin: 8px 0; }
.banner__details strong { color: var(--pia-white); }
.banner__effdate {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 14px 0 6px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: var(--r-md);
  border-left: 4px solid rgba(255, 255, 255, 0.55);
}
.banner__effdate-icon { font-size: 1.5rem; line-height: 1; flex-shrink: 0; }
.banner__effdate-text { display: flex; flex-direction: column; gap: 2px; }
.banner__effdate-label {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.85;
  font-weight: 600;
}
.banner__effdate-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--pia-white);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.banner__effdate-source {
  font-size: 0.74rem;
  opacity: 0.65;
  font-weight: 500;
}
.banner__directions {
  margin: 16px 0 8px;
  background: rgba(0,0,0,0.18);
  border-radius: var(--r-md);
  padding: 14px 16px;
}
.banner__directions h4 { color: var(--pia-white); font-size: 0.95rem; margin-bottom: 8px; }
.banner__directions ul { margin: 0; padding-left: 18px; }
.banner__directions li { margin-bottom: 4px; font-size: 0.92rem; }
.banner__verify {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 10px 18px;
  background: rgba(255,255,255,0.95);
  color: var(--pia-text);
  border-radius: var(--r-md);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}
.banner__verify:hover { background: var(--pia-white); color: var(--pia-navy); }

/* Section B — price impact chart */
.chart-card, .table-card, .council-card-section {
  background: var(--pia-white);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.chart-card h2 { margin-bottom: 4px; }
.chart-card .section-sub { color: var(--pia-grey-dark); font-size: 0.95rem; margin-bottom: 20px; }
.chart-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.chart-stats .stat {
  background: var(--pia-off-white);
  border-radius: var(--r-md);
  padding: 16px;
  text-align: center;
}
.chart-stats .stat__label { font-size: 0.78rem; color: var(--pia-grey-dark); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; font-weight: 600; }
.chart-stats .stat__value { font-size: clamp(1.2rem, 1.5vw + 0.6rem, 1.75rem); font-weight: 800; color: var(--pia-navy); font-variant-numeric: tabular-nums; }
.chart-stats .stat--uplift .stat__value { color: var(--status-green); }
.chart-stats .stat--uplift .stat__value.negative { color: var(--status-red); }
.chart-canvas-wrap {
  position: relative;
  width: 100%;
  height: 360px;
}
.chart-confidence {
  margin-top: 12px;
  padding: 10px 14px;
  background: rgba(245, 158, 11, 0.1);
  border-left: 3px solid var(--status-amber);
  color: var(--pia-text);
  font-size: 0.9rem;
  border-radius: var(--r-sm);
}
.chart-actions { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  background: var(--pia-navy);
  color: var(--pia-white);
  border: none;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}
.btn-secondary:hover { background: var(--pia-navy-deep); color: var(--pia-white); }
.chart-summary-text {
  margin-top: 12px;
  padding: 10px 0 0;
  border-top: 1px solid var(--pia-grey-light);
  font-size: 0.85rem;
  color: var(--pia-grey-dark);
}

/* Section C — sold prices table */
.table-card h2 { margin-bottom: 4px; }
.sold-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.95rem;
}
.sold-table th, .sold-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--pia-grey-light);
}
.sold-table th {
  background: var(--pia-off-white);
  font-weight: 700;
  color: var(--pia-navy);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.sold-table td.col-price { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--pia-navy); }
.sold-table td.col-date { color: var(--pia-grey-dark); white-space: nowrap; }
.source-line { font-size: 0.8rem; color: var(--pia-grey); margin: 12px 0 0; }
.empty-state { padding: 24px; text-align: center; color: var(--pia-grey-dark); }

/* Section D — council hub */
.council-card-section h2 { margin-bottom: 18px; }
.council-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .council-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .council-grid { grid-template-columns: repeat(3, 1fr); } }

.council-card {
  background: var(--pia-off-white);
  border-radius: var(--r-md);
  padding: 20px;
  border: 1px solid var(--pia-grey-light);
  display: flex;
  flex-direction: column;
}
.council-card h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--pia-grey-dark);
  font-weight: 700;
  margin-bottom: 12px;
}
.council-card .big-number { font-size: 1.75rem; font-weight: 800; color: var(--pia-navy); margin: 4px 0 8px; font-variant-numeric: tabular-nums; }
.council-card ul { padding-left: 20px; margin: 4px 0 0; }
.council-card li { font-size: 0.9rem; margin-bottom: 4px; }
.council-card a:not(.btn-secondary) { color: var(--pia-navy); font-weight: 600; }
.council-card .meta { font-size: 0.85rem; color: var(--pia-grey-dark); margin: 8px 0; }
.council-card .meta strong { color: var(--pia-navy); }
.council-card .btn-secondary { margin-top: auto; align-self: flex-start; }

.council-fallback {
  background: rgba(245, 158, 11, 0.08);
  border-left: 4px solid var(--status-amber);
  border-radius: var(--r-md);
  padding: 20px;
}
.council-fallback p { margin-bottom: 12px; }

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg, #E5E9F0 0px, #F2F4F8 40px, #E5E9F0 80px);
  background-size: 800px 100%;
  border-radius: var(--r-md);
  animation: pia-skel 1.4s linear infinite;
}
@keyframes pia-skel { 0% { background-position: -400px 0; } 100% { background-position: 400px 0; } }
.skeleton-banner { height: 220px; border-radius: var(--r-lg); }
.skeleton-card { height: 280px; border-radius: var(--r-lg); }
.skeleton-line { height: 16px; margin: 8px 0; }
.skeleton-line.short { width: 40%; }
.skeleton-line.medium { width: 70%; }

/* ============================================================
   Section E — Propsee
   ============================================================ */
.propsee-section {
  background: linear-gradient(135deg, var(--pia-navy) 0%, var(--pia-navy-deep) 100%);
  color: var(--pia-white);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.propsee-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
@media (min-width: 900px) { .propsee-card { grid-template-columns: 1.2fr 1fr; } }
.propsee-card h2 { color: var(--pia-white); }
.propsee-card .lead { font-size: 1.1rem; color: rgba(255,255,255,0.92); margin-bottom: 24px; }
.propsee-benefits { list-style: none; padding: 0; margin: 0 0 28px; }
.propsee-benefits li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 8px 0;
  color: rgba(255,255,255,0.95);
  font-size: 1rem;
}
.propsee-benefits li::before { content: ""; }
.propsee-benefits .icon { display: inline-block; width: 24px; flex-shrink: 0; }
.propsee-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  background: var(--pia-cyan);
  color: var(--pia-navy);
  border-radius: var(--r-md);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.05rem;
}
.propsee-cta:hover { background: var(--pia-cyan-bright); color: var(--pia-navy); }
.propsee-card .meta { color: rgba(255,255,255,0.6); margin-top: 14px; font-size: 0.85rem; }
.propsee-screenshot {
  border-radius: var(--r-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
  border: 4px solid rgba(38, 208, 206, 0.3);
}

/* ============================================================
   Section F — PIA app promo
   ============================================================ */
.pia-app-section { padding: 64px 0; background: var(--pia-white); }
.pia-app-section .container { text-align: center; }
.pia-app-section h2 { margin-bottom: 12px; }
.pia-app-section .lead { font-size: 1.1rem; color: var(--pia-grey-dark); max-width: 600px; margin: 0 auto 28px; }
.app-badges { display: inline-flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.app-badges a { display: inline-block; line-height: 0; }
.app-badge {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 12px 22px;
  background: var(--pia-navy);
  color: var(--pia-white);
  border-radius: var(--r-md);
  text-decoration: none;
  min-width: 200px;
}
.app-badge:hover { background: var(--pia-navy-deep); color: var(--pia-white); }
.app-badge__icon { font-size: 1.6rem; }
.app-badge__small { font-size: 0.7rem; opacity: 0.8; line-height: 1; text-transform: uppercase; letter-spacing: 0.05em; }
.app-badge__big { font-size: 1.05rem; font-weight: 700; line-height: 1.2; }

/* ============================================================
   Section G — lead magnet
   ============================================================ */
.lead-magnet-section {
  background: var(--pia-off-white);
  padding: 64px 0;
}
.lead-magnet-card {
  background: var(--pia-white);
  border-radius: var(--r-lg);
  padding: 36px;
  box-shadow: var(--shadow-card);
  max-width: 720px;
  margin: 0 auto;
}
.lead-form { display: flex; flex-direction: column; gap: 14px; }
.lead-form label { font-weight: 600; color: var(--pia-navy); font-size: 0.92rem; }
.lead-form input[type=text], .lead-form input[type=email] {
  padding: 12px 14px;
  border: 2px solid var(--pia-grey-light);
  border-radius: var(--r-md);
  background: var(--pia-off-white);
}
.lead-form input:focus { outline: none; border-color: var(--pia-cyan); background: var(--pia-white); }
.lead-form fieldset {
  border: 1px solid var(--pia-grey-light);
  border-radius: var(--r-md);
  padding: 14px 18px;
  margin: 4px 0;
}
.lead-form legend { padding: 0 8px; font-size: 0.9rem; font-weight: 600; color: var(--pia-grey-dark); }
.consent { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; font-size: 0.92rem; font-weight: 400; line-height: 1.45; }
.consent input[type=checkbox] { margin-top: 4px; flex-shrink: 0; }
.lead-form .req { color: var(--status-red); }
.lead-success {
  background: rgba(22, 163, 74, 0.08);
  border-left: 4px solid var(--status-green);
  padding: 16px 18px;
  border-radius: var(--r-md);
  margin-top: 12px;
}

/* ============================================================
   Section H — FAQ + video
   ============================================================ */
.faq-section { padding: 64px 0; background: var(--pia-white); }
.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: var(--pia-grey-light);
  margin-bottom: 36px;
  box-shadow: var(--shadow-card);
}
.video-wrap iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--pia-grey-light);
  border-radius: var(--r-md);
  margin-bottom: 10px;
  background: var(--pia-white);
  overflow: hidden;
}
.faq-item summary {
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 700;
  color: var(--pia-navy);
  font-size: 1rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--pia-cyan);
  font-size: 1.4rem;
  font-weight: 300;
  transition: transform 0.2s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-body {
  padding: 0 20px 18px;
  color: var(--pia-grey-dark);
  font-size: 0.97rem;
}

/* ============================================================
   Section I — footer
   ============================================================ */
.site-footer {
  background: var(--pia-navy-deep);
  color: rgba(255,255,255,0.78);
  padding: 48px 0 24px;
}
.site-footer h4 { color: var(--pia-white); font-size: 1rem; margin-bottom: 14px; }
.footer-grid { display: grid; gap: 28px; grid-template-columns: 1fr; margin-bottom: 32px; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; } }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin: 6px 0; }
.footer-grid a { color: rgba(255,255,255,0.78); text-decoration: none; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--pia-cyan); }
.footer-bottom {
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.82rem;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
}
.disclaimer { font-size: 0.82rem; color: rgba(255,255,255,0.55); margin-top: 12px; max-width: 800px; }
.footer-logo { height: 36px; opacity: 0.92; margin-bottom: 14px; }

/* ============================================================
   Cookie banner
   ============================================================ */
.cookie-banner {
  position: fixed;
  bottom: 16px;
  left: 16px;
  right: 16px;
  max-width: 460px;
  background: var(--pia-white);
  color: var(--pia-text);
  padding: 18px 22px;
  border-radius: var(--r-md);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  font-size: 0.9rem;
  z-index: 100;
  border: 1px solid var(--pia-grey-light);
}
/* PECR / DUAA 2025: Accept and Reject must have equal visual prominence
   per ICO guidance on storage and access technologies. */
.cookie-banner__buttons { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.cookie-banner__buttons button {
  padding: 10px 18px;
  border-radius: var(--r-sm);
  border: 2px solid var(--pia-navy);
  font-weight: 600;
  font-size: 0.92rem;
  flex: 1 1 0;
  min-width: 120px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.cookie-banner__buttons button.accept { background: var(--pia-navy); color: var(--pia-white); }
.cookie-banner__buttons button.accept:hover { background: var(--pia-navy-deep); }
.cookie-banner__buttons button.reject { background: var(--pia-white); color: var(--pia-navy); }
.cookie-banner__buttons button.reject:hover { background: var(--pia-off-white); }

/* ============================================================
   Utility
   ============================================================ */
.muted { color: var(--pia-grey-dark); }
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--pia-white);
  border-radius: 50%;
  animation: pia-spin 0.7s linear infinite;
}
@keyframes pia-spin { to { transform: rotate(360deg); } }

/* Compliance pages */
.legal-page { padding: 56px 0; max-width: 800px; margin: 0 auto; }
.legal-page h1 { font-size: 2.25rem; }
.legal-page h2 { margin-top: 1.6em; font-size: 1.4rem; }
.legal-page p, .legal-page li { font-size: 0.97rem; }
.legal-page .container { padding: 0 24px; }

/* Print: hide non-essential sections */
@media print {
  .site-header, .propsee-section, .pia-app-section, .lead-magnet-section, .cookie-banner, .check-form { display: none; }
  body { background: white; }
}