:root {
    --ink: #183b56;
    --ink-deep: #0d2233;
    --ink-deep-2: #0a1a29;
    --paper: #eeeadd;
    --paper-hi: #f7f4ea;
    --muted: #55677a;
    --muted-on-dark: rgba(245, 241, 230, .72);
    --line: #ddd6c0;
    --line-on-dark: rgba(245, 241, 230, .16);
    --accent: #e66a3c;
    --accent-deep: #c04f28;
    --sage: #4f7d63;
    --sage-deep: #3a5f4a;
    --red-digit: #b3271f;
    --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, "Noto Serif", Georgia, serif;
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "Roboto Mono", monospace;
}

* { box-sizing: border-box; }

body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-body);
    line-height: 1.55;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.12;
    margin: 0;
    text-wrap: balance;
}

p { margin: 0; }

.wrap {
    margin: 0 auto;
    max-width: 1120px;
    padding: 0 1.75rem;
}

.eyebrow {
    font-family: var(--font-mono);
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
}

/* ---------- Nav ---------- */

.nav {
    align-items: center;
    display: flex;
    justify-content: space-between;
    padding: 1.6rem 0 0;
}

.brand {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: .01em;
}

.brand span { color: var(--accent); }

.nav-actions {
    align-items: center;
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: var(--muted-on-dark);
    font-size: .92rem;
    text-decoration: none;
}

.nav-link:hover { color: var(--paper-hi); }

.btn {
    border-radius: 3px;
    display: inline-block;
    font-size: .92rem;
    font-weight: 700;
    padding: .68rem 1.35rem;
    text-decoration: none;
    transition: transform .12s ease, box-shadow .12s ease;
}

.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.btn-accent {
    background: var(--accent);
    color: var(--ink-deep);
}

.btn-accent:hover { background: #ee7b4f; }

.btn-ghost-dark {
    background: transparent;
    border: 1px solid var(--line-on-dark);
    color: var(--paper-hi);
}

.btn-ghost-dark:hover { border-color: var(--paper-hi); }

/* ---------- Hero ---------- */

.hero {
    background: var(--ink-deep);
    color: var(--paper-hi);
    overflow: hidden;
    position: relative;
}

#terrain {
    display: block;
    height: 100%;
    left: 0;
    pointer-events: none;
    position: absolute;
    top: 0;
    width: 100%;
}

.hero-inner {
    padding: 5.5rem 0 6.5rem;
    position: relative;
}

.hero-copy { max-width: 640px; }

.hero-copy .eyebrow {
    color: var(--accent);
    margin-bottom: 1.1rem;
}

.hero h1 {
    font-size: clamp(2.1rem, 4.4vw, 3.15rem);
}

.hero-sub {
    color: var(--muted-on-dark);
    font-size: 1.12rem;
    margin-top: 1.4rem;
    max-width: 46ch;
}

.hero-ctas {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2.2rem;
}

.hero-note {
    color: var(--muted-on-dark);
    font-size: .84rem;
    margin-top: 1.1rem;
}

.hero-note::before {
    background: var(--accent);
    border-radius: 50%;
    content: "";
    display: inline-block;
    height: 6px;
    margin-right: .5rem;
    width: 6px;
}

/* ---------- Problems ---------- */

.section {
    padding: 5.5rem 0;
}

.section-head {
    margin: 0 auto 3rem;
    max-width: 620px;
    text-align: center;
}

.section-head .eyebrow {
    color: var(--sage-deep);
    display: block;
    margin-bottom: .9rem;
}

.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.15rem); }

.section-head p {
    color: var(--muted);
    margin-top: 1rem;
}

.problem-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.problem-card {
    border-radius: 6px;
    color: var(--paper-hi);
    isolation: isolate;
    min-height: 300px;
    opacity: 0;
    overflow: hidden;
    padding: 1.6rem;
    position: relative;
    transform: translateY(14px);
    transition: opacity .5s ease, transform .5s ease;
}

.problem-card.is-visible { opacity: 1; transform: none; }

.problem-card::before {
    content: "";
    filter: blur(30px) saturate(1.15);
    inset: -20%;
    position: absolute;
    z-index: -2;
}

.problem-card::after {
    background: linear-gradient(180deg, rgba(10, 20, 30, .15) 0%, rgba(10, 20, 30, .78) 100%);
    content: "";
    inset: 0;
    position: absolute;
    z-index: -1;
}

.problem-card--terrain::before {
    background:
        radial-gradient(circle at 20% 25%, #35566f 0%, transparent 55%),
        radial-gradient(circle at 80% 20%, #6d5240 0%, transparent 50%),
        radial-gradient(circle at 50% 85%, #22384a 0%, transparent 60%),
        #2a4256;
}

.problem-card--dog::before {
    background:
        radial-gradient(circle at 75% 30%, #8a5a3a 0%, transparent 55%),
        radial-gradient(circle at 25% 75%, #4a3626 0%, transparent 55%),
        radial-gradient(circle at 50% 10%, #b3763f 0%, transparent 45%),
        #40301f;
}

.problem-card--empty::before {
    background:
        radial-gradient(circle at 30% 20%, #4f6f5c 0%, transparent 55%),
        radial-gradient(circle at 80% 70%, #2e4436 0%, transparent 55%),
        radial-gradient(circle at 60% 15%, #6f8a6b 0%, transparent 45%),
        #35473b;
}

.problem-card--blocked::before {
    background:
        radial-gradient(circle at 70% 25%, #5a3f52 0%, transparent 55%),
        radial-gradient(circle at 20% 70%, #2c2436 0%, transparent 55%),
        radial-gradient(circle at 50% 90%, #7a3f3f 0%, transparent 50%),
        #2a2130;
}

.problem-icon {
    align-items: center;
    background: rgba(238, 234, 221, .12);
    border: 1px solid rgba(238, 234, 221, .28);
    border-radius: 50%;
    display: flex;
    height: 52px;
    justify-content: center;
    width: 52px;
}

.problem-icon svg {
    height: 26px;
    stroke: var(--paper-hi);
    width: 26px;
}

.problem-card h3 {
    font-size: 1.2rem;
    margin-top: 6.2rem;
}

.problem-card p {
    color: var(--muted-on-dark);
    font-size: .92rem;
    margin-top: .6rem;
}

/* ---------- How it works ---------- */

.how {
    background: var(--paper-hi);
    border-bottom: 1px solid var(--line);
    border-top: 1px solid var(--line);
}

.how-steps {
    counter-reset: step;
    display: grid;
    gap: 2.5rem;
    grid-template-columns: repeat(3, 1fr);
}

.how-step {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .5s ease, transform .5s ease;
}

.how-step.is-visible { opacity: 1; transform: none; }

.how-step-num {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .08em;
}

.how-step h3 {
    color: var(--ink);
    font-size: 1.15rem;
    margin-top: .6rem;
}

.how-step p {
    color: var(--muted);
    font-size: .94rem;
    margin-top: .55rem;
}

/* ---------- Market / odometer stats ---------- */

.market {
    background: var(--ink-deep-2);
    color: var(--paper-hi);
}

.market .section-head .eyebrow { color: var(--accent); }
.market .section-head p { color: var(--muted-on-dark); }

.odometer-row {
    display: grid;
    gap: 1.75rem;
    grid-template-columns: repeat(3, 1fr);
}

.odometer-block {
    text-align: center;
}

.odometer {
    display: inline-flex;
    gap: 4px;
    padding: .6rem;
}

.odo-digit {
    align-items: center;
    background: #071320;
    border: 1px solid rgba(238, 234, 221, .14);
    border-radius: 3px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, .5);
    display: flex;
    font-family: var(--font-mono);
    font-size: 2.1rem;
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    height: 3.4rem;
    justify-content: center;
    width: 2.15rem;
}

.odo-digit--sep {
    background: transparent;
    border: none;
    box-shadow: none;
    color: var(--muted-on-dark);
    width: .8rem;
}

.odo-digit--pct {
    background: transparent;
    border: none;
    box-shadow: none;
    color: var(--accent);
    width: 1.4rem;
}

.odometer-label {
    color: var(--muted-on-dark);
    font-size: .88rem;
    margin-top: 1rem;
    margin-inline: auto;
    max-width: 22ch;
}

.odometer-source {
    color: var(--muted-on-dark);
    font-size: .76rem;
    margin-top: 2.75rem;
    opacity: .7;
    text-align: center;
}

/* ---------- Contact / footer ---------- */

.contact {
    padding: 5rem 0 3rem;
    text-align: center;
}

.contact h2 { font-size: clamp(1.5rem, 3vw, 2rem); }

.contact p {
    color: var(--muted);
    margin: 1rem auto 0;
    max-width: 46ch;
}

.contact .btn { margin-top: 1.9rem; }

.btn-accent-lg {
    background: var(--accent);
    border-radius: 3px;
    color: var(--ink-deep);
    display: inline-block;
    font-size: 1rem;
    font-weight: 700;
    padding: .9rem 1.9rem;
    text-decoration: none;
}

.btn-accent-lg:hover { background: #ee7b4f; }

.footer-bar {
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: .82rem;
    padding: 1.5rem 0 2.5rem;
}

.footer-bar .wrap {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: .75rem 1.5rem;
    justify-content: space-between;
}

.footer-bar a { color: var(--muted); text-decoration: underline; }

@media (min-width: 720px) {
    .how-steps { align-items: start; }
}

@media (max-width: 719px) {
    .how-steps { grid-template-columns: 1fr; gap: 2rem; }
    .odometer-row { grid-template-columns: 1fr; gap: 2.5rem; }
    .odo-digit { font-size: 1.7rem; height: 2.8rem; width: 1.8rem; }
}

@media (max-width: 560px) {
    .nav-link { display: none; }
    .hero-inner { padding: 3.5rem 0 4.5rem; }
    .section { padding: 3.75rem 0; }
}

@media (prefers-reduced-motion: reduce) {
    .problem-card, .how-step { transition: none; }
}