/* style.css — shared stylesheet */

/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root {
  --color-bg:          #f9f9f7;
  --color-surface:     #ffffff;
  --color-border:      #e4e4e0;
  --color-text:        #1a1a18;
  --color-muted:       #6b6b66;
  --color-accent:      #2b5ce6;
  --color-accent-dark: #1e42b0;
  --color-accent-bg:   #eef2fd;

  /* Score colours */
  --score-exceptional: #1a6e3c;
  --score-very-good:   #2d8c52;
  --score-good:        #4aaa6f;
  --score-fair:        #c8a21a;
  --score-below:       #d4651a;
  --score-challenging: #c0392b;

  /* Hazard / status colours */
  --color-green:  #2d8c52;
  --color-yellow: #c8a21a;
  --color-red:    #c0392b;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;

  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
}

/* =========================================================
   RESET & BASE
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* =========================================================
   LAYOUT
   ========================================================= */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================================================
   NAVIGATION
   ========================================================= */
.nav {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav__logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.nav__logo:hover { text-decoration: none; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  font-size: 0.9rem;
}

.nav__links a { color: var(--color-muted); }
.nav__links a:hover { color: var(--color-text); text-decoration: none; }
.nav__links .btn { margin-left: 8px; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}
.btn--primary:hover { background: var(--color-accent-dark); text-decoration: none; }

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--secondary:hover { background: var(--color-bg); text-decoration: none; }

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  padding: 8px 4px;
}
.btn--ghost:hover { text-decoration: underline; }

.btn--full { width: 100%; }
.btn--lg { padding: 12px 24px; font-size: 1rem; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* =========================================================
   FORMS
   ========================================================= */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  background: var(--color-surface);
  color: var(--color-text);
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(43, 92, 230, 0.12);
}

.form-group .hint {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.form-error {
  color: var(--color-red);
  font-size: 0.85rem;
  margin-top: 4px;
}

/* =========================================================
   CARDS
   ========================================================= */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.card__title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.card--locked {
  position: relative;
  overflow: hidden;
}

.card--locked::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 20%, rgba(249,249,247,0.95) 70%);
  pointer-events: none;
}

.card__lock-cta {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 20px;
  text-align: center;
  z-index: 1;
}

.card__lock-label {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 8px;
}

/* =========================================================
   SCORE DISPLAY
   ========================================================= */
.score-hero {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.score-number {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}

.score-label {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 4px;
}

.score--deep-green  { color: var(--score-exceptional); }
.score--green       { color: var(--score-very-good); }
.score--light-green { color: var(--score-good); }
.score--yellow      { color: var(--score-fair); }
.score--orange      { color: var(--score-below); }
.score--red         { color: var(--score-challenging); }

/* Component score bars */
.score-bars { margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }
.score-bar__label { display: flex; justify-content: space-between; font-size: 0.875rem; margin-bottom: 4px; }
.score-bar__track { height: 8px; background: var(--color-border); border-radius: 99px; overflow: hidden; }
.score-bar__fill  { height: 100%; background: var(--color-accent); border-radius: 99px; transition: width 0.4s; }

/* =========================================================
   RISK BADGES
   ========================================================= */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}
.badge--low      { background: #e6f4ec; color: var(--color-green); }
.badge--moderate { background: #fdf6e0; color: var(--color-yellow); }
.badge--high     { background: #fdecea; color: var(--color-red); }
.badge--severe   { background: #5c0a0a; color: #fff; }
.badge--good     { background: #e6f4ec; color: var(--color-green); }
.badge--fair     { background: #fdf6e0; color: var(--color-yellow); }
.badge--poor     { background: #fdecea; color: var(--color-red); }

/* =========================================================
   PAGE HEADER
   ========================================================= */
.page-header {
  padding: 48px 0 32px;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.page-header p {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 1.05rem;
  max-width: 560px;
}

/* =========================================================
   HERO (homepage)
   ========================================================= */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  max-width: 640px;
  margin: 0 auto;
}

.hero p {
  margin: 20px auto 0;
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 520px;
}

/* =========================================================
   SEARCH BAR
   ========================================================= */
.search-wrap {
  margin: 40px auto 0;
  max-width: 560px;
  position: relative;
}

.search-wrap input {
  width: 100%;
  padding: 14px 120px 14px 20px;
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  transition: border-color 0.15s;
}

.search-wrap input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-wrap button {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  padding: 8px 18px;
}

.autocomplete {
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 50;
  overflow: hidden;
  display: none;
}

.autocomplete.open { display: block; }
.autocomplete li {
  padding: 10px 16px;
  font-size: 0.9rem;
  cursor: pointer;
  list-style: none;
}
.autocomplete li:hover { background: var(--color-bg); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  margin-top: 80px;
}

.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}

.footer__brand { font-weight: 700; margin-bottom: 8px; }
.footer__tagline { font-size: 0.85rem; color: var(--color-muted); max-width: 260px; }

.footer__links { display: flex; flex-direction: column; gap: 8px; font-size: 0.875rem; }
.footer__links a { color: var(--color-muted); }
.footer__links a:hover { color: var(--color-text); }

.footer__copy {
  width: 100%;
  font-size: 0.8rem;
  color: var(--color-muted);
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  margin-top: 16px;
}

/* =========================================================
   UTILITIES
   ========================================================= */
.text-muted  { color: var(--color-muted); }
.text-small  { font-size: 0.875rem; }
.text-center { text-align: center; }

.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.section { padding: 64px 0; }
.section + .section { border-top: 1px solid var(--color-border); }

/* Alert / notice */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.alert--info    { background: var(--color-accent-bg); color: var(--color-accent-dark); }
.alert--success { background: #e6f4ec; color: var(--color-green); }
.alert--error   { background: #fdecea; color: var(--color-red); }

/* Disclaimer */
.disclaimer {
  font-size: 0.8rem;
  color: var(--color-muted);
  padding: 12px 16px;
  background: var(--color-bg);
  border-left: 3px solid var(--color-border);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 12px;
}

/* Loading spinner */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-muted);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-text); }
.breadcrumb__sep { color: var(--color-border); }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .nav__links .nav-hide-mobile { display: none; }
  .grid-cards { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; }
}