/* ===== Design tokens ===== */
:root {
  --green-900: #1c3a24;
  --green-700: #2f6d3c;
  --green-600: #3a7d44;
  --green-500: #4f9457;
  --green-100: #e4f0e3;
  --green-50: #f2f8f1;

  --terracotta-600: #c96a2e;
  --terracotta-500: #d98c3d;
  --terracotta-100: #fbe8d6;

  --ink-900: #20261e;
  --ink-700: #43493f;
  --ink-500: #6b7166;
  --ink-300: #a6ab9f;

  --paper-0: #ffffff;
  --paper-50: #faf8f3;
  --paper-100: #f2efe6;
  --paper-200: #e7e2d3;

  --danger: #b3402f;
  --danger-bg: #fbe4e0;
  --success: #2f6d3c;
  --success-bg: #e4f0e3;
  --info: #2f6a8c;
  --info-bg: #e2eef5;
  --warning-bg: #fbeecf;
  --warning-text: #8a5e12;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(32, 38, 30, 0.08);
  --shadow-md: 0 6px 20px rgba(32, 38, 30, 0.10);
  --shadow-lg: 0 16px 40px rgba(32, 38, 30, 0.14);
  --max-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink-900);
  background: var(--paper-50);
  line-height: 1.55;
}

h1, h2, h3, h4 { font-family: Georgia, "Times New Roman", serif; line-height: 1.2; margin: 0 0 .5em; color: var(--green-900); }
h1 { font-size: 2.6rem; }
h2 { font-size: 1.9rem; }
h3 { font-size: 1.35rem; }
p { margin: 0 0 1em; }
a { color: var(--green-700); text-decoration: none; }
a:hover { color: var(--terracotta-600); }
ul { padding-left: 1.2em; }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--green-700); color: #fff;
  padding: .6em 1em; z-index: 200;
}
.skip-link:focus { left: 0; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
.site-header {
  background: var(--paper-0);
  border-bottom: 1px solid var(--paper-200);
  position: sticky; top: 0; z-index: 100;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: .5em; font-weight: 600; color: var(--ink-900); font-size: 1.1rem; }
.brand:hover { color: var(--ink-900); }
.brand-mark { font-size: 1.5rem; }
.brand-text strong { color: var(--green-700); }

.site-nav { display: flex; align-items: center; gap: 1.4em; }
.site-nav a { color: var(--ink-700); font-weight: 500; white-space: nowrap; }
.site-nav a:hover { color: var(--green-700); }
.nav-muted { color: var(--ink-500) !important; font-weight: 400 !important; font-size: .92rem; }

.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--ink-900); display: block; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  padding: .65em 1.3em; border-radius: var(--radius-sm); font-weight: 600; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .06s ease, box-shadow .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green-700); color: #fff; }
.btn-primary:hover { background: var(--green-600); color: #fff; }
.btn-secondary { background: var(--paper-0); color: var(--green-700); border-color: var(--green-700); }
.btn-secondary:hover { background: var(--green-50); }
.btn-accent { background: var(--terracotta-500); color: #fff; }
.btn-accent:hover { background: var(--terracotta-600); color: #fff; }
.btn-danger { background: var(--paper-0); color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-bg); }
.btn-sm { padding: .45em .9em; font-size: .85rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ===== Flash messages ===== */
.flash-stack { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.flash {
  display: flex; justify-content: space-between; align-items: center;
  padding: .8em 1.1em; border-radius: var(--radius-sm); font-size: .95rem;
}
.flash-success { background: var(--success-bg); color: var(--success); }
.flash-danger { background: var(--danger-bg); color: var(--danger); }
.flash-info { background: var(--info-bg); color: var(--info); }
.flash-warning { background: var(--warning-bg); color: var(--warning-text); }
.flash-close { background: none; border: none; font-size: 1.1rem; cursor: pointer; color: inherit; opacity: .6; }
.flash-close:hover { opacity: 1; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--green-900), var(--green-700) 60%, var(--green-600));
  color: #fff;
  padding: 76px 0 90px;
  position: relative;
  overflow: hidden;
}
.hero h1 { color: #fff; font-size: 3rem; max-width: 780px; }
.hero .lede { font-size: 1.2rem; max-width: 620px; color: rgba(255,255,255,.9); }
.hero-cta { display: flex; gap: 1em; margin-top: 1.8em; flex-wrap: wrap; }
.hero .btn-secondary { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.5); }
.hero .btn-secondary:hover { background: rgba(255,255,255,.18); }

.stats-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  background: var(--paper-0); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-top: -54px; position: relative; z-index: 5;
  padding: 28px 20px;
}
.stat { text-align: center; }
.stat-num { font-family: Georgia, serif; font-size: 2rem; color: var(--green-700); font-weight: 700; }
.stat-label { color: var(--ink-500); font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; }

/* ===== Sections ===== */
.section { padding: 72px 0; }
.section-tight { padding: 48px 0; }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-header .eyebrow { color: var(--terracotta-600); text-transform: uppercase; letter-spacing: .08em; font-size: .82rem; font-weight: 700; }
.bg-alt { background: var(--paper-100); }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===== Cards ===== */
.card {
  background: var(--paper-0); border-radius: var(--radius-md); border: 1px solid var(--paper-200);
  box-shadow: var(--shadow-sm); overflow: hidden; transition: box-shadow .2s ease, transform .2s ease;
}
.card-hover:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-body { padding: 22px; }

.material-card { text-align: center; padding: 30px 20px; }
.material-icon { font-size: 2.4rem; display: block; margin-bottom: .4em; }

.step-card { position: relative; padding-top: 10px; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%; background: var(--green-700); color: #fff;
  font-weight: 700; margin-bottom: 14px;
}

/* ===== Listing cards ===== */
.listing-card .card-body { display: flex; flex-direction: column; gap: 8px; }
.listing-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.listing-price { font-weight: 700; color: var(--terracotta-600); font-size: 1.05rem; white-space: nowrap; }
.listing-meta { color: var(--ink-500); font-size: .87rem; }
.listing-desc { color: var(--ink-700); font-size: .92rem; }
.tag-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

.badge {
  display: inline-block; padding: .25em .7em; border-radius: 999px; font-size: .76rem; font-weight: 600;
}
.badge-material { background: var(--green-100); color: var(--green-700); }
.badge-use { background: var(--terracotta-100); color: var(--terracotta-600); }
.badge-status-available { background: var(--success-bg); color: var(--success); }
.badge-status-pending { background: var(--warning-bg); color: var(--warning-text); }
.badge-status-sold { background: var(--paper-200); color: var(--ink-500); }
.badge-inquiry-pending { background: var(--warning-bg); color: var(--warning-text); }
.badge-inquiry-accepted { background: var(--success-bg); color: var(--success); }
.badge-inquiry-declined { background: var(--danger-bg); color: var(--danger); }
.badge-inquiry-completed { background: var(--info-bg); color: var(--info); }

/* ===== Forms ===== */
.form-card { max-width: 560px; margin: 0 auto; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: .35em; font-size: .92rem; color: var(--ink-900); }
.field .hint { color: var(--ink-500); font-size: .82rem; margin-top: .3em; }
.field .errors { color: var(--danger); font-size: .82rem; margin-top: .3em; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=tel],
textarea, select {
  width: 100%; padding: .7em .85em; border: 1px solid var(--paper-200); border-radius: var(--radius-sm);
  font-size: .95rem; font-family: inherit; background: var(--paper-0); color: var(--ink-900);
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--green-500); box-shadow: 0 0 0 3px var(--green-100);
}
textarea { resize: vertical; min-height: 100px; }
.radio-group, .checkbox-group { display: flex; flex-wrap: wrap; gap: 10px 20px; }
.radio-group label, .checkbox-group label { font-weight: 400; display: flex; align-items: center; gap: .4em; }
.radio-group input, .checkbox-group input { width: auto; }
.filter-bar { background: var(--paper-0); border: 1px solid var(--paper-200); border-radius: var(--radius-md); padding: 20px; margin-bottom: 28px; }
.filter-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr auto; gap: 12px; align-items: end; }
.filter-grid .field { margin-bottom: 0; }

/* ===== Auth pages ===== */
.auth-wrap { display: flex; justify-content: center; padding: 56px 20px; }
.auth-card { width: 100%; max-width: 520px; background: var(--paper-0); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 40px; }
.auth-switch { text-align: center; margin-top: 16px; color: var(--ink-500); font-size: .92rem; }

/* ===== Dashboard ===== */
.dash-header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
.dash-tabs { display: flex; gap: 8px; margin-bottom: 24px; border-bottom: 1px solid var(--paper-200); }
table.data-table { width: 100%; border-collapse: collapse; background: var(--paper-0); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
table.data-table th, table.data-table td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--paper-200); font-size: .9rem; }
table.data-table th { background: var(--paper-100); color: var(--ink-700); font-weight: 600; }
table.data-table tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); }
.inline-form { display: inline; }
.action-row { display: flex; gap: 6px; flex-wrap: wrap; }
.empty-state { text-align: center; padding: 60px 20px; color: var(--ink-500); }
.empty-state .material-icon { opacity: .5; }

/* ===== Detail page ===== */
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 32px; align-items: start; }
.detail-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 8px; }
.sidebar-card { position: sticky; top: 90px; }
.price-tag { font-size: 1.7rem; color: var(--terracotta-600); font-weight: 700; }

/* ===== Footer ===== */
.site-footer { background: var(--green-900); color: rgba(255,255,255,.85); margin-top: 60px; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; padding: 48px 20px; flex-wrap: wrap; }
.footer-inner .brand-footer { color: #fff; margin-bottom: .5em; }
.footer-tagline { color: rgba(255,255,255,.65); max-width: 320px; font-size: .92rem; }
.footer-links { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-links h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: .8em; }
.footer-links a { display: block; color: rgba(255,255,255,.7); margin-bottom: .6em; font-size: .92rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.15); padding: 18px 20px; font-size: .82rem; color: rgba(255,255,255,.55); }

/* ===== Utilities ===== */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.mb-lg { margin-bottom: 40px; }
.muted { color: var(--ink-500); }
.small { font-size: .85rem; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .detail-grid { grid-template-columns: 1fr; }
  .filter-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute; top: 68px; left: 0; right: 0; background: var(--paper-0);
    flex-direction: column; align-items: stretch; padding: 16px 20px; gap: 14px;
    border-bottom: 1px solid var(--paper-200); box-shadow: var(--shadow-md);
    display: none;
  }
  .site-nav.open { display: flex; }
  .hero h1 { font-size: 2.1rem; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); margin-top: 24px; }
  .hero { padding-bottom: 40px; }
  .filter-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 28px; }
}