:root {
    color-scheme: light;
    --ink: #102a43;
    --ink-soft: #334e68;
    --paper: #f4f1ea;
    --surface: #ffffff;
    --surface-soft: #ebe7df;
    --line: #d9d4ca;
    --accent: #db5b34;
    --accent-dark: #b93e1d;
    --signal: #f2a900;
    --success: #227a55;
    --shadow: 0 18px 50px rgba(16, 42, 67, .10);
    --radius: 22px;
}

[data-theme="dark"] {
    color-scheme: dark;
    --ink: #eef5fa;
    --ink-soft: #a9bdcc;
    --paper: #071321;
    --surface: #0d2032;
    --surface-soft: #132b40;
    --line: #264359;
    --accent: #ef7650;
    --accent-dark: #ff9877;
    --signal: #ffc83d;
    --success: #62c99c;
    --shadow: 0 18px 50px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; }
a { color: inherit; }
.container-xl { max-width: 1240px; }

.environment-bar {
    background: var(--signal);
    color: #251b00;
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .1em;
    padding: .48rem 1rem;
    text-align: center;
    text-transform: uppercase;
}

.site-header {
    background: color-mix(in srgb, var(--paper) 90%, transparent);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(18px);
}
.navbar { min-height: 80px; }
.brand-lockup {
    align-items: center;
    display: inline-flex;
    gap: .7rem;
    color: var(--ink);
    font-size: 1.18rem;
    letter-spacing: -.03em;
    text-decoration: none;
}
.brand-lockup strong { font-weight: 850; }
.brand-mark {
    align-items: center;
    background: var(--ink);
    border-radius: 13px;
    color: var(--paper);
    display: inline-flex;
    height: 42px;
    justify-content: center;
    width: 42px;
}
.navbar .nav-link { color: var(--ink-soft); font-size: .92rem; font-weight: 650; }
.navbar .nav-link:hover, .navbar .nav-link.active { color: var(--ink); }
.navbar-toggler { border-color: var(--line); }
.theme-button {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--ink);
    display: inline-flex;
    height: 40px;
    justify-content: center;
    width: 40px;
}
.btn-primary {
    --bs-btn-bg: var(--accent);
    --bs-btn-border-color: var(--accent);
    --bs-btn-hover-bg: var(--accent-dark);
    --bs-btn-hover-border-color: var(--accent-dark);
    --bs-btn-active-bg: var(--accent-dark);
    --bs-btn-active-border-color: var(--accent-dark);
    font-weight: 750;
}
.btn-outline-primary {
    --bs-btn-color: var(--ink);
    --bs-btn-border-color: var(--line);
    --bs-btn-hover-bg: var(--ink);
    --bs-btn-hover-border-color: var(--ink);
    --bs-btn-hover-color: var(--paper);
    font-weight: 700;
}

.market-hero {
    background:
        radial-gradient(circle at 82% 8%, color-mix(in srgb, var(--signal) 22%, transparent), transparent 25%),
        linear-gradient(135deg, var(--surface) 0%, var(--paper) 70%);
    border-bottom: 1px solid var(--line);
    overflow: hidden;
    padding: clamp(4rem, 9vw, 8rem) 0 clamp(4rem, 8vw, 7rem);
    position: relative;
}
.market-hero::after {
    background-image: linear-gradient(90deg, transparent 49%, color-mix(in srgb, var(--ink) 8%, transparent) 50%, transparent 51%);
    background-size: 44px 100%;
    bottom: 0;
    content: "";
    height: 9px;
    left: 0;
    opacity: .8;
    position: absolute;
    right: 0;
}
.hero-grid { align-items: center; display: grid; gap: clamp(3rem, 7vw, 7rem); grid-template-columns: minmax(0, 1.55fr) minmax(280px, .65fr); }
.eyebrow, .section-kicker {
    color: var(--accent);
    font-size: .72rem;
    font-weight: 850;
    letter-spacing: .16em;
    text-transform: uppercase;
}
.eyebrow { align-items: center; display: inline-flex; gap: .55rem; margin-bottom: 1.25rem; }
.hero-copy h1 {
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(3.2rem, 7vw, 6.4rem);
    font-weight: 600;
    letter-spacing: -.065em;
    line-height: .9;
    margin: 0;
    max-width: 850px;
}
.hero-copy h1 em { color: var(--accent); font-weight: 400; }
.hero-copy > p { color: var(--ink-soft); font-size: clamp(1rem, 1.5vw, 1.2rem); line-height: 1.7; margin: 1.7rem 0 2rem; max-width: 670px; }
.hero-search {
    align-items: center;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
    display: flex;
    gap: .8rem;
    max-width: 760px;
    padding: .55rem;
}
.hero-search > i { color: var(--ink-soft); font-size: 1.2rem; margin-left: .65rem; }
.hero-search input { background: transparent; border: 0; color: var(--ink); flex: 1; min-width: 0; outline: 0; padding: .7rem 0; }
.hero-search .btn { border-radius: 13px; padding: .8rem 1.45rem; }
.popular-searches { align-items: center; display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1rem; }
.popular-searches span { color: var(--ink-soft); font-size: .75rem; font-weight: 700; }
.popular-searches button { background: transparent; border: 0; color: var(--ink-soft); font-size: .78rem; padding: .2rem .25rem; text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 4px; }
.popular-searches button:hover { color: var(--accent); }

.hero-rail-card {
    background: var(--ink);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    color: var(--paper);
    min-height: 335px;
    overflow: hidden;
    padding: 2rem;
    position: relative;
}
.rail-card-number { color: color-mix(in srgb, var(--paper) 45%, transparent); font-size: .76rem; font-weight: 800; letter-spacing: .16em; }
.rail-lines { inset: 25% -35% auto 15%; position: absolute; transform: rotate(-12deg); }
.rail-lines span { border-top: 7px solid var(--signal); display: block; margin: 30px 0; position: relative; }
.rail-lines span::after { background: repeating-linear-gradient(90deg, transparent 0 18px, var(--paper) 19px 26px); content: ""; height: 4px; left: 0; opacity: .35; position: absolute; right: 0; top: -6px; }
.hero-rail-card > div:last-child { bottom: 1.8rem; left: 2rem; position: absolute; right: 2rem; }
.hero-rail-card strong { display: block; font-family: Georgia, "Times New Roman", serif; font-size: 1.45rem; margin-bottom: .5rem; }
.hero-rail-card p { color: color-mix(in srgb, var(--paper) 72%, transparent); font-size: .86rem; line-height: 1.55; margin: 0; }

.listing-section { min-height: 520px; padding: clamp(4rem, 7vw, 6.5rem) 0; }
.section-heading { align-items: end; display: flex; gap: 2rem; justify-content: space-between; margin-bottom: 2rem; }
.section-heading h2 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.1rem, 4vw, 3.5rem); letter-spacing: -.045em; margin: .3rem 0 0; }
.filter-button { align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; color: var(--ink); display: inline-flex; font-weight: 700; gap: .55rem; padding: .75rem 1rem; }
.listing-grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.empty-state { align-items: center; background: var(--surface); border: 1px dashed var(--line); border-radius: var(--radius); display: flex; flex-direction: column; grid-column: 1 / -1; justify-content: center; min-height: 290px; padding: 3rem; text-align: center; }
.empty-icon { align-items: center; background: var(--surface-soft); border-radius: 50%; color: var(--accent); display: inline-flex; font-size: 1.6rem; height: 64px; justify-content: center; margin-bottom: 1rem; width: 64px; }
.empty-state h3 { font-family: Georgia, "Times New Roman", serif; font-size: 1.45rem; margin: 0 0 .5rem; }
.empty-state p { color: var(--ink-soft); margin: 0; max-width: 500px; }
.market-alert { border: 1px solid var(--line); border-radius: 12px; margin-bottom: 1.5rem; padding: .9rem 1rem; }
.market-alert-info { background: color-mix(in srgb, var(--signal) 13%, var(--surface)); }
.market-alert-error { background: color-mix(in srgb, var(--accent) 13%, var(--surface)); }

.how-section { background: var(--ink); color: var(--paper); padding: clamp(4rem, 7vw, 6rem) 0; }
.section-heading-light .section-kicker { color: var(--signal); }
.steps-grid { display: grid; gap: 1px; grid-template-columns: repeat(3, 1fr); }
.steps-grid article { border-left: 1px solid color-mix(in srgb, var(--paper) 18%, transparent); min-height: 230px; padding: 1.5rem clamp(1.5rem, 3vw, 3rem); position: relative; }
.steps-grid article:first-child { border-left: 0; padding-left: 0; }
.steps-grid article > span { color: color-mix(in srgb, var(--paper) 35%, transparent); font-size: .72rem; font-weight: 800; }
.steps-grid i { color: var(--signal); display: block; font-size: 2rem; margin: 2rem 0 1.15rem; }
.steps-grid h3 { font-family: Georgia, "Times New Roman", serif; font-size: 1.4rem; }
.steps-grid p { color: color-mix(in srgb, var(--paper) 68%, transparent); font-size: .9rem; line-height: 1.65; max-width: 300px; }

.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding: 3.5rem 0; }
.footer-grid { align-items: start; display: grid; gap: 2rem; grid-template-columns: 1.5fr 1fr 1fr; }
.brand-lockup-footer { margin-bottom: .75rem; }
.footer-grid p, .footer-grid a { color: var(--ink-soft); font-size: .82rem; }
.footer-grid nav { display: grid; gap: .65rem; }
.footer-note { line-height: 1.6; }

@media (max-width: 991.98px) {
    .navbar-collapse { padding: 1rem 0 1.25rem; }
    .navbar-nav { align-items: stretch !important; }
    .theme-button { margin-top: .5rem; }
    .hero-grid { grid-template-columns: 1fr; }
    .hero-rail-card { display: none; }
    .listing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 767.98px) {
    .market-hero { padding-top: 3.5rem; }
    .hero-copy h1 { font-size: clamp(3rem, 16vw, 4.7rem); }
    .hero-search { align-items: stretch; flex-wrap: wrap; padding: .7rem; }
    .hero-search input { width: calc(100% - 3rem); }
    .hero-search .btn { flex: 1 0 100%; }
    .listing-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .steps-grid article, .steps-grid article:first-child { border-left: 0; border-top: 1px solid color-mix(in srgb, var(--paper) 18%, transparent); min-height: auto; padding: 2rem 0; }
    .steps-grid article:first-child { border-top: 0; }
    .steps-grid i { margin: 1rem 0; }
    .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}