/* Housing Disrepair London - site styles.
   Design: "Calm advocacy, visible progress" - evidence/inspection metaphor.
   Palette: deep slate / muted teal, warm neutrals, restrained amber accent.
   WCAG 2.2 AA target; 8-point spacing scale; editorial asymmetry on desktop. */

:root {
    --ink:        #0B2A3B;   /* deep slate */
    --ink-2:      #15425B;
    --teal:       #1F6B6B;   /* muted teal accent */
    --teal-ink:   #0E4747;
    --amber:      #E39A24;   /* restrained amber action accent */
    --amber-ink:  #8A5C0C;
    --paper:      #FBF9F3;   /* warm neutral background */
    --paper-2:    #F2EEE2;
    --rule:       #D9D3C3;   /* thin measured rules */
    --text:       #1D2A33;
    --muted:      #556774;
    --white:      #FFFFFF;
    --max:        76rem;
    --radius:     6px;
    --focus:      #0E7CE8;
    --space-1: 8px; --space-2: 16px; --space-3: 24px; --space-4: 32px;
    --space-5: 48px; --space-6: 64px; --space-7: 96px;
    --font-body: "Inter", "Atkinson Hyperlegible", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-head: "Fraunces", "Source Serif 4", Georgia, "Times New Roman", serif;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; font: 16px/1.6 var(--font-body); color: var(--text); background: var(--paper); overflow-x: hidden; }
img, svg, video { max-width: 100%; height: auto; display: block; }

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; color: var(--ink); line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 var(--space-2); }
h1 { font-size: clamp(2rem, 4.5vw, 3.5rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }
p, li { font-size: 1.05rem; }
.prose p { max-width: 65ch; }
.prose h2 { margin-top: var(--space-5); }
.prose h3 { margin-top: var(--space-4); }
.prose ul, .prose ol { max-width: 65ch; padding-left: 1.25rem; }
.prose a { color: var(--teal-ink); }

a { color: var(--ink); text-decoration-color: var(--teal); text-underline-offset: 3px; }
a:hover { color: var(--teal-ink); }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 2px; }

/* Container */
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--space-3); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: var(--space-1); padding: 14px 22px; border-radius: var(--radius); font-weight: 600; text-decoration: none; transition: transform .15s, box-shadow .15s; border: 1.5px solid transparent; font-family: var(--font-body); }
.btn-primary { background: var(--amber); color: var(--ink); border-color: var(--amber-ink); box-shadow: 0 2px 0 var(--amber-ink); }
.btn-primary:hover { transform: translateY(-1px); color: var(--ink); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 0 0 var(--amber-ink); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--white); }

/* Skip link */
.skip { position: absolute; left: -9999px; top: 0; padding: var(--space-2); background: var(--ink); color: var(--white); z-index: 100; }
.skip:focus { left: 0; }

/* Announcement bar */
.announce { background: var(--ink); color: var(--white); font-size: 0.9rem; padding: 8px 0; text-align: center; }
.announce a { color: var(--amber); font-weight: 600; }

/* Header */
.site-header { background: var(--paper); border-bottom: 1px solid var(--rule); position: sticky; top: 0; z-index: 50; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: var(--space-3); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; line-height: 1.15; }
.brand .logo { width: 32px; height: 32px; flex-shrink: 0; }
.brand .brand-sub { display: block; font-size: 0.72rem; font-weight: 500; color: var(--teal-ink); letter-spacing: 0.08em; text-transform: uppercase; font-family: var(--font-body); }

.nav-primary { display: none; align-items: center; gap: var(--space-3); }
.nav-primary a { font-weight: 500; font-size: 0.95rem; text-decoration: none; padding: 8px 2px; border-bottom: 2px solid transparent; }
.nav-primary a:hover, .nav-primary a[aria-current="page"] { border-bottom-color: var(--amber); color: var(--teal-ink); }
.header-cta { display: flex; align-items: center; gap: var(--space-2); }
.phone-link { display: none; align-items: center; gap: 6px; text-decoration: none; font-weight: 600; color: var(--ink); white-space: nowrap; }
.phone-icon { width: 18px; height: 18px; display: inline-block; background: currentColor; mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'><path d='M6.6 10.8c1.3 2.6 3.6 4.9 6.2 6.2l2.1-2.1c.3-.3.7-.4 1-.3 1.2.4 2.5.6 3.9.6.6 0 1 .4 1 1V19c0 .6-.4 1-1 1-9.4 0-17-7.6-17-17 0-.6.4-1 1-1h2.9c.6 0 1 .4 1 1 0 1.3.2 2.6.6 3.9.1.4 0 .7-.3 1l-2.4 2.9z'/></svg>") center/contain no-repeat; }
.menu-toggle { display: inline-flex; align-items: center; gap: 6px; background: transparent; border: 1px solid var(--rule); border-radius: var(--radius); padding: 8px 12px; color: var(--ink); font-weight: 600; cursor: pointer; }
.menu-toggle .bars { width: 18px; height: 2px; background: currentColor; position: relative; display: inline-block; }
.menu-toggle .bars::before, .menu-toggle .bars::after { content: ''; position: absolute; left: 0; width: 100%; height: 2px; background: currentColor; }
.menu-toggle .bars::before { top: -5px; } .menu-toggle .bars::after { top: 5px; }
.mobile-nav { display: none; background: var(--paper); border-top: 1px solid var(--rule); }
.mobile-nav.open { display: block; }
.mobile-nav ul { list-style: none; margin: 0; padding: var(--space-2) var(--space-3); }
.mobile-nav li a { display: block; padding: 12px 0; border-bottom: 1px solid var(--rule); text-decoration: none; color: var(--ink); font-weight: 500; }

@media (min-width: 1100px) {
    .nav-primary { display: flex; }
    .phone-link { display: inline-flex; }
    .menu-toggle { display: none; }
}

/* Hero */
.hero { padding: var(--space-6) 0 var(--space-5); background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%); position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-5); align-items: center; }
.hero-eyebrow { font-size: 0.78rem; font-weight: 600; color: var(--teal-ink); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: var(--space-2); display: flex; align-items: center; gap: 10px; }
.hero-eyebrow::before { content: ''; width: 36px; height: 1px; background: var(--teal); display: inline-block; }
.hero h1 { margin-bottom: var(--space-3); }
.hero-lead { font-size: 1.2rem; color: var(--muted); max-width: 42ch; margin-bottom: var(--space-4); }
.hero-actions { display: flex; gap: var(--space-2); flex-wrap: wrap; align-items: center; }
.hero-support { font-size: 0.9rem; color: var(--muted); margin-top: var(--space-2); }
.hero-support a { color: var(--teal-ink); }
.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; }
@media (min-width: 900px) {
    .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
}

/* Evidence annotation strip under hero */
.evidence-strip { background: var(--white); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: var(--space-3) 0; }
.evidence-strip .container { display: grid; grid-template-columns: 1fr; gap: var(--space-2); }
.evidence-item { display: flex; gap: var(--space-2); align-items: flex-start; font-size: 0.95rem; }
.evidence-item .marker { width: 10px; height: 10px; border-radius: 50%; background: var(--amber); margin-top: 7px; flex-shrink: 0; position: relative; }
.evidence-item .marker::after { content: ''; position: absolute; left: -4px; top: -4px; width: 18px; height: 18px; border-radius: 50%; border: 1px solid var(--amber); opacity: 0.5; }
@media (min-width: 700px) { .evidence-strip .container { grid-template-columns: repeat(3, 1fr); } }

/* Section */
section.block { padding: var(--space-6) 0; }
section.block.block-tight { padding: var(--space-4) 0; }
section.block.block-tinted { background: var(--paper-2); }
section.block.block-ink { background: var(--ink); color: #E8EEF2; }
section.block.block-ink h2, section.block.block-ink h3 { color: var(--white); }
.section-head { max-width: 48rem; margin-bottom: var(--space-4); }
.section-eyebrow { font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--teal-ink); font-weight: 600; }

/* Problem selector */
.problem-selector { display: grid; grid-template-columns: 1fr; gap: var(--space-2); }
@media (min-width: 700px) { .problem-selector { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .problem-selector { grid-template-columns: repeat(3, 1fr); } }
.problem-tile { background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); padding: var(--space-3); text-decoration: none; color: var(--ink); transition: border-color .15s, transform .15s, box-shadow .15s; display: flex; gap: var(--space-2); align-items: flex-start; position: relative; }
.problem-tile:hover { border-color: var(--teal); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(11,42,59,0.08); color: var(--ink); }
.problem-tile .icon { width: 28px; height: 28px; flex-shrink: 0; color: var(--teal); }
.problem-tile .title { font-weight: 600; font-family: var(--font-head); font-size: 1.05rem; margin-bottom: 4px; display: block; }
.problem-tile .sub { font-size: 0.9rem; color: var(--muted); display: block; }
.problem-tile::after { content: '→'; position: absolute; right: var(--space-2); bottom: var(--space-2); color: var(--teal); font-weight: 600; }

/* Issues grid */
.issues-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
@media (min-width: 700px) { .issues-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .issues-grid { grid-template-columns: repeat(2, 1fr); } }
.issue-group-title { font-size: 1rem; color: var(--teal-ink); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--space-2); padding-bottom: 8px; border-bottom: 1px solid var(--rule); }
.issue-list { list-style: none; padding: 0; margin: 0; }
.issue-list li { margin-bottom: 10px; }
.issue-list a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); text-decoration: none; color: var(--ink); transition: border-color .15s; }
.issue-list a:hover { border-color: var(--teal); }
.issue-list .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); flex-shrink: 0; }
.issues-plain { list-style: none; padding: 0; columns: 1; column-gap: var(--space-4); }
@media (min-width: 700px) { .issues-plain { columns: 2; } }
.issues-plain li { margin-bottom: 10px; break-inside: avoid; }

/* Process (3-step journey) */
.process { display: grid; grid-template-columns: 1fr; gap: var(--space-3); counter-reset: step; }
@media (min-width: 700px) { .process { grid-template-columns: repeat(3, 1fr); gap: var(--space-4); position: relative; }
    .process::before { content: ''; position: absolute; left: 10%; right: 10%; top: 48px; height: 1px; background: var(--rule); z-index: 0; } }
.step { background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); padding: var(--space-3); position: relative; z-index: 1; }
.step-num { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--ink); color: var(--white); font-family: var(--font-head); font-weight: 700; margin-bottom: var(--space-2); }
.step h3 { margin-bottom: var(--space-1); }
.step p { font-size: 0.95rem; color: var(--muted); margin: 0; }

/* Boroughs grid */
.boroughs-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
@media (min-width: 700px) { .boroughs-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .boroughs-grid { grid-template-columns: repeat(4, 1fr); } }
.borough-card { display: flex; justify-content: space-between; align-items: center; background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); padding: 14px var(--space-2); text-decoration: none; color: var(--ink); font-weight: 500; transition: border-color .15s, background .15s; }
.borough-card:hover { border-color: var(--teal); background: var(--paper-2); color: var(--ink); }
.borough-arrow { color: var(--teal); font-weight: 600; }

/* A-Z list */
.az-list { display: grid; gap: var(--space-3); }
.az-letter h3 { color: var(--teal-ink); font-family: var(--font-head); font-size: 1.5rem; margin-bottom: 4px; border-bottom: 1px solid var(--rule); padding-bottom: 4px; }
.az-letter ul { list-style: none; padding: 0; columns: 1; }
@media (min-width: 700px) { .az-letter ul { columns: 3; } }
.az-letter li { margin-bottom: 4px; break-inside: avoid; }

/* Form */
.form { background: var(--white); border: 1px solid var(--rule); border-radius: 8px; padding: var(--space-4); }
.form-row { margin-bottom: var(--space-3); }
.form-row label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.form-row .hint { font-size: 0.88rem; color: var(--muted); margin-top: 4px; }
.form-row input, .form-row select, .form-row textarea { width: 100%; padding: 12px 14px; border: 1.5px solid var(--rule); border-radius: var(--radius); font: inherit; font-size: 1rem; background: var(--white); color: var(--ink); min-height: 48px; }
.form-row textarea { min-height: 120px; resize: vertical; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(31,107,107,0.15); }
.form-row input[aria-invalid="true"], .form-row textarea[aria-invalid="true"], .form-row select[aria-invalid="true"] { border-color: #b4342c; }
.form-row .err { color: #b4342c; font-size: 0.9rem; margin-top: 4px; }
.form-check { display: flex; gap: 10px; align-items: flex-start; }
.form-check input { width: auto; min-height: 0; margin-top: 4px; }
.form-check label { font-weight: 500; }
.form-honeypot { position: absolute; left: -9999px; opacity: 0; width: 1px; height: 1px; }
.form-step { display: none; }
.form-step.active { display: block; }
.form-steps-nav { display: flex; justify-content: space-between; gap: var(--space-2); margin-top: var(--space-3); }
.form-progress { display: flex; align-items: center; gap: var(--space-1); margin-bottom: var(--space-3); font-size: 0.85rem; color: var(--muted); }
.form-progress .pip { width: 24px; height: 4px; background: var(--rule); border-radius: 2px; }
.form-progress .pip.done { background: var(--teal); }
.form-progress .pip.current { background: var(--amber); }

/* FAQ */
.faq details { background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); margin-bottom: 10px; padding: 0; }
.faq summary { cursor: pointer; padding: var(--space-2) var(--space-3); font-weight: 600; color: var(--ink); font-family: var(--font-head); font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: var(--space-2); }
.faq summary::after { content: '+'; font-size: 1.5rem; color: var(--teal); font-weight: 400; transition: transform .15s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq summary::-webkit-details-marker { display: none; }
.faq .faq-body { padding: 0 var(--space-3) var(--space-3); color: var(--text); }

/* Case study / guide cards */
.card-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-3); }
@media (min-width: 700px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }
.content-card { background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); padding: var(--space-3); text-decoration: none; color: var(--ink); transition: border-color .15s, transform .15s; display: flex; flex-direction: column; gap: var(--space-2); }
.content-card:hover { border-color: var(--teal); transform: translateY(-2px); color: var(--ink); }
.content-card h3 { margin: 0; font-size: 1.1rem; }
.content-card .meta { font-size: 0.85rem; color: var(--muted); }

/* Reassurance block */
.reassurance { display: grid; grid-template-columns: 1fr; gap: var(--space-3); }
@media (min-width: 700px) { .reassurance { grid-template-columns: repeat(3, 1fr); } }
.reassure-item { padding-left: var(--space-3); border-left: 2px solid var(--amber); }
.reassure-item h3 { font-size: 1.05rem; margin-bottom: 6px; }
.reassure-item p { font-size: 0.95rem; color: var(--muted); margin: 0; }

/* Breadcrumbs */
.breadcrumb { font-size: 0.88rem; color: var(--muted); padding: var(--space-2) 0; }
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { margin: 0 6px; color: var(--rule); }

/* CTA strip */
.cta-strip { background: var(--ink); color: var(--white); padding: var(--space-5) 0; }
.cta-strip h2 { color: var(--white); margin-bottom: var(--space-2); }
.cta-strip p { color: #BBD2E0; max-width: 50ch; margin-bottom: var(--space-3); }
.cta-strip .btn-primary { background: var(--amber); border-color: var(--amber-ink); color: var(--ink); }

/* Footer */
.site-footer { background: var(--paper-2); border-top: 1px solid var(--rule); padding: var(--space-5) 0 var(--space-3); font-size: 0.9rem; color: var(--muted); }
.footer-cols { display: grid; grid-template-columns: 1fr; gap: var(--space-4); margin-bottom: var(--space-4); }
@media (min-width: 700px) { .footer-cols { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }
.footer-cols h4 { color: var(--ink); font-family: var(--font-body); font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--space-2); }
.footer-cols ul { list-style: none; padding: 0; margin: 0; }
.footer-cols li { margin-bottom: 6px; }
.footer-cols a { color: var(--text); text-decoration: none; }
.footer-cols a:hover { color: var(--teal-ink); text-decoration: underline; }
.footer-legal { border-top: 1px solid var(--rule); padding-top: var(--space-3); display: grid; grid-template-columns: 1fr; gap: var(--space-1); font-size: 0.85rem; }
@media (min-width: 700px) { .footer-legal { grid-template-columns: 1fr auto; align-items: center; } }
.footer-sra { color: var(--muted); font-size: 0.82rem; }

/* Cookie banner */
.cookie-banner { position: fixed; bottom: var(--space-2); left: var(--space-2); right: var(--space-2); background: var(--ink); color: var(--white); padding: var(--space-3); border-radius: 8px; box-shadow: 0 8px 32px rgba(0,0,0,0.2); z-index: 60; max-width: 500px; display: none; }
.cookie-banner.show { display: block; }
.cookie-banner h3 { color: var(--white); font-size: 1rem; margin-bottom: 6px; font-family: var(--font-body); }
.cookie-banner p { font-size: 0.85rem; color: #D5E2EB; margin-bottom: var(--space-2); }
.cookie-banner .cb-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie-banner .cb-actions button, .cookie-banner .cb-actions a { padding: 8px 14px; border-radius: var(--radius); font-size: 0.88rem; font-weight: 600; border: 1px solid var(--white); text-decoration: none; cursor: pointer; background: transparent; color: var(--white); font-family: var(--font-body); }
.cookie-banner .cb-accept { background: var(--amber); border-color: var(--amber-ink); color: var(--ink); }
.cookie-banner .cb-close { position: absolute; top: 8px; right: 8px; background: transparent; border: 0; color: var(--white); font-size: 1.4rem; cursor: pointer; line-height: 1; padding: 0 6px; }

/* Awaiting review banner */
.awaiting-review { background: #FFF4D6; border: 1px solid #E6B800; color: #5A4300; padding: 10px var(--space-2); border-radius: var(--radius); font-size: 0.9rem; margin-bottom: var(--space-3); display: flex; gap: 10px; align-items: flex-start; }
.awaiting-review strong { color: #4A3700; }

/* Thin measured rule (brand device) */
.rule { display: block; width: 48px; height: 1px; background: var(--amber); margin: var(--space-3) 0; border: 0; }

/* Latest posts */
.latest-posts { display: grid; grid-template-columns: 1fr; gap: var(--space-2); }
@media (min-width: 700px) { .latest-posts { grid-template-columns: repeat(3, 1fr); } }
.post-card { background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); padding: var(--space-3); text-decoration: none; color: var(--ink); }
.post-card h4 { margin-bottom: 6px; font-size: 1.05rem; }
.post-card p { font-size: 0.9rem; color: var(--muted); margin: 0; }

/* Table of contents */
.toc { background: var(--paper-2); border-left: 3px solid var(--teal); padding: var(--space-2) var(--space-3); margin-bottom: var(--space-4); }
.toc h4 { font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: var(--space-1); color: var(--teal-ink); font-family: var(--font-body); }
.toc ul { list-style: none; padding-left: 0; margin: 0; }
.toc li { margin-bottom: 4px; }

/* Compensation calculator */
.calc { background: var(--white); border: 1px solid var(--rule); border-radius: var(--radius); padding: var(--space-3); }
.calc-row { display: grid; grid-template-columns: 1fr; gap: var(--space-2); margin-bottom: var(--space-2); }
@media (min-width: 600px) { .calc-row { grid-template-columns: 2fr 1fr; align-items: center; } }
.calc-out { background: var(--paper-2); padding: var(--space-2); border-radius: var(--radius); margin-top: var(--space-2); }

/* Visually hidden */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Print */
@media print { .site-header, .site-footer, .cookie-banner, .cta-strip { display: none; } }