:root {
    --paper: #FCFCFB;
    --paper-2: #F4F6F5;
    --ink: #16191D;
    --steel: #77838D;
    --mid: #9AA7B2;
    --mist: #C7D0D8;
    --line: #E7EBEC;
    --green: #009A44;
    --green-d: #06773A;
    --maxw: 1160px;
    --radius: 8px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
    margin: 0;
    font-family: 'Hanken Grotesk', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--ink);
    background: var(--paper);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
:focus-visible { outline: 3px solid rgba(0, 154, 68, 0.34); outline-offset: 3px; }
.wrap { width: min(100% - 56px, var(--maxw)); margin: 0 auto; }
.mono { font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Consolas, monospace; }

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--ink); font-weight: 600; letter-spacing: 0; line-height: 1.08; }
h1 { font-size: clamp(2.55rem, 5.4vw, 4.95rem); font-weight: 500; max-width: 12.5ch; }
h2 { font-size: clamp(1.9rem, 3.6vw, 3rem); max-width: 13ch; }
h3 { font-size: 1.05rem; }

/* Dark nav chrome: the DevPT umbrella logo is dark-optimized (light-gray "Dev"),
   so the nav rides on a near-black surface to make the mark pop and to match the
   dark chrome shipped in the simLAB / simNOTE family. Body + content stay light. */
.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: linear-gradient(180deg, #0d0d0f, #16171a);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transition: border-color 0.24s;
}
.nav.scrolled { border-bottom-color: rgba(255, 255, 255, 0.12); }
.nav-inner { height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand img { height: 28px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 4px; }
/* --mist (#c7d0d8) on the dark nav = ~11.5:1 contrast (WCAG AAA) */
.nav-links a:not(.btn) { padding: 8px 12px; border-radius: var(--radius); color: var(--mist); font-weight: 600; font-size: 0.92rem; }
.nav-links a:not(.btn):hover { color: #fff; background: rgba(255, 255, 255, 0.08); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    border: 1px solid transparent;
    padding: 12px 20px;
    font-weight: 700;
    font-size: 0.98rem;
    line-height: 1;
    min-height: 44px;
    transition: transform 0.18s var(--ease), background 0.18s, border-color 0.18s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-green { color: #fff; background: var(--green); box-shadow: 0 12px 28px -18px rgba(0, 154, 68, 0.9); }
.btn-green:hover { background: var(--green-d); }
.btn-ghost { color: var(--ink); background: transparent; border-color: var(--mid); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-lg { padding: 15px 24px; }
.cta-sm { padding: 10px 16px; font-size: 0.9rem; }

.hero { padding: 76px 0 64px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr); align-items: center; gap: 48px; }
.hero-copy { min-width: 0; }
.eyebrow { margin-bottom: 14px; color: var(--green-d); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.hero h1 { margin-bottom: 22px; }
.hero-logo-title {
    width: min(100%, 500px);
    max-width: 500px;
    padding: 14px 18px;
    margin-bottom: 18px;
    line-height: 0;
    border-radius: var(--radius);
    background: #000;
    box-shadow: 0 24px 54px -42px rgba(22, 25, 29, 0.72);
}
.hero-logo-title img {
    width: 100%;
    height: auto;
}
.hero-subtitle {
    max-width: 18ch;
    margin-bottom: 18px;
    color: var(--ink);
    font-size: clamp(1.55rem, 3.1vw, 2.45rem);
    font-weight: 600;
    line-height: 1.08;
}
.lede { color: #44505a; font-size: clamp(1.08rem, 1.6vw, 1.25rem); max-width: 58ch; margin-bottom: 0; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.confidence-line { margin: 24px 0 0; color: var(--steel); font-size: 0.82rem; overflow-wrap: anywhere; }

.device {
    display: block;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #0c0f12;
    box-shadow: 0 34px 72px -42px rgba(22, 25, 29, 0.68), 0 8px 18px -14px rgba(22, 25, 29, 0.32);
}
.device-bar { height: 36px; display: flex; align-items: center; gap: 7px; padding: 0 13px; color: #c5cdd4; background: var(--ink); border-bottom: 1px solid rgba(255,255,255,0.08); }
.device-bar span { width: 8px; height: 8px; border-radius: 50%; background: #5a626a; }
.device-bar span:first-child { background: var(--green); }
.device-bar b { margin-left: auto; font-size: 0.72rem; font-weight: 500; color: #b8c2ca; letter-spacing: 0.04em; }
.hero-device img { width: 100%; background: var(--paper-2); }
.hero-walkthrough { --walk-duration: 4200ms; }
.walkthrough-stage { position: relative; aspect-ratio: 16 / 12; overflow: hidden; background: #0c0f12; }
.walkthrough-step {
    position: absolute;
    inset: 0;
    margin: 0;
    display: grid;
    grid-template-rows: minmax(0, 1fr) auto;
    opacity: 0;
    transform: scale(1.018);
    transition: opacity 0.5s var(--ease), transform 0.7s var(--ease);
}
.walkthrough-step { visibility: hidden; }
.walkthrough-step.active { opacity: 1; transform: scale(1); z-index: 1; visibility: visible; }
.walkthrough-step img { width: 100%; height: 100%; min-height: 0; object-fit: cover; background: var(--paper-2); }
.walkthrough-step figcaption {
    display: grid;
    gap: 5px;
    min-height: 86px;
    max-width: none;
    padding: 14px 16px;
    color: #fff;
    background: #111417;
    border-top: 1px solid rgba(255,255,255,0.10);
}
.walkthrough-step figcaption span { color: #8ce1b0; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.walkthrough-step figcaption b { font-size: clamp(0.95rem, 1.7vw, 1.2rem); line-height: 1.18; }
.walkthrough-timeline {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 8px;
    margin: 0;
    padding: 12px;
    background: #111417;
    border-top: 1px solid rgba(255,255,255,0.08);
}
.walkthrough-timeline li { display: grid; gap: 7px; min-width: 0; color: #8c969e; font-size: 0.68rem; font-weight: 700; text-transform: uppercase; }
.walkthrough-timeline .track { display: block; height: 5px; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,0.14); }
.walkthrough-timeline .track b { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--green); }
.walkthrough-timeline li.done { color: #dce6e0; }
.walkthrough-timeline li.done .track b { width: 100%; }
.walkthrough-timeline li.active { color: #fff; }
.walkthrough-timeline li.active .track b { animation: walk-progress var(--walk-duration) linear forwards; }
@keyframes walk-progress { from { width: 0; } to { width: 100%; } }

.readline { background: var(--ink); color: #fff; }
.readline .wrap { padding: 24px 0; }
.readline-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.motion-toggle {
    padding: 6px 12px;
    border: 1px solid rgba(255,255,255,0.35);
    border-radius: 999px;
    background: transparent;
    color: #dce6e0;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
}
.motion-toggle:hover, .motion-toggle:focus-visible { border-color: #fff; color: #fff; }
.visually-hidden {
    position: absolute;
    width: 1px; height: 1px;
    margin: -1px; padding: 0; border: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}
.readline p { margin: 0; font-size: clamp(1rem, 2vw, 1.25rem); font-weight: 600; letter-spacing: 0; }

.block { padding: 86px 0; }
.section-head { max-width: 58ch; margin-bottom: 34px; }
.section-head p:not(.eyebrow) { color: var(--steel); font-size: 1.08rem; margin: 14px 0 0; }

.flow-block { background: var(--paper); }
.skill-sequence { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0 0 28px; }
.skill-sequence article {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper-2);
    padding: 13px 14px;
}
.skill-sequence span { color: var(--green-d); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.skill-sequence p { margin: 4px 0 0; color: #52606b; font-size: 0.92rem; line-height: 1.35; }
.journey { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.journey-card {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--paper);
    transition: transform 0.2s var(--ease), box-shadow 0.24s, border-color 0.18s;
}
a.journey-card:hover { transform: translateY(-4px); border-color: var(--mid); box-shadow: 0 24px 48px -36px rgba(22, 25, 29, 0.45); }
.journey-card h3 { min-height: 64px; display: flex; align-items: center; margin: 0; padding: 0 18px; font-size: 1.12rem; }
.shot { position: relative; display: block; aspect-ratio: 16 / 10; overflow: hidden; background: #0c0f12; border-bottom: 1px solid var(--line); }
.shot img, .shot video { width: 100%; height: 100%; object-fit: cover; }
.chat-shot img { filter: saturate(0.96); }
.chatbubble { position: absolute; left: 14px; bottom: 14px; max-width: calc(100% - 28px); padding: 9px 12px; color: var(--ink); background: rgba(252,252,251,0.96); border-radius: var(--radius); box-shadow: 0 10px 24px -14px rgba(0,0,0,0.65); font-size: 0.72rem; }
.feedback-card { display: grid; grid-template-rows: auto 64px; }
.feedback-visual { aspect-ratio: 16 / 10; display: grid; align-content: center; gap: 10px; padding: 24px; background: linear-gradient(135deg, #f7f9f8, #e8eeeb); border-bottom: 1px solid var(--line); }
.scoreline { display: block; height: 11px; border-radius: 999px; background: #dfe6e3; overflow: hidden; }
.scoreline b { display: block; height: 100%; width: 74%; background: var(--green); }
.scoreline.short b { width: 52%; background: var(--mid); }
.feedback-note { display: inline-flex; align-items: center; min-height: 30px; width: max-content; max-width: 100%; padding: 6px 10px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(252,252,251,0.84); color: var(--ink); font-weight: 600; font-size: 0.86rem; }

.student-band { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-board { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr); gap: 18px; align-items: stretch; }
.case-shot,
.case-decision {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: 0 20px 46px -38px rgba(22,25,29,0.48);
}
.case-shot-wide { display: grid; grid-template-columns: minmax(230px, 0.78fr) minmax(0, 1.22fr); grid-row: span 2; }
/* Standalone wide card (response-to-treatment band): same chrome, no board grid. */
.longitudinal-card { grid-row: auto; }
.longitudinal-card img { max-height: 460px; }
.case-shot img { width: 100%; height: 100%; min-height: 230px; object-fit: cover; background: #0c0f12; }
.case-shot-copy { padding: 22px; display: flex; flex-direction: column; justify-content: center; }
.case-shot-copy span,
.decision-top,
.missed-box > span,
.dash-top span { color: var(--green-d); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.case-shot-copy h3 { margin: 8px 0 10px; font-size: clamp(1.15rem, 2vw, 1.6rem); line-height: 1.12; }
.case-shot-copy p { color: #52606b; margin: 0; }
.case-quote { margin-top: 12px !important; padding: 10px 12px; color: var(--ink) !important; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); font-size: 0.76rem; }
.case-decision { padding: 20px; display: grid; gap: 16px; align-content: start; background: linear-gradient(180deg, #fff, #f8faf8); }
.decision-options { display: grid; gap: 8px; }
.decision-options span { display: flex; align-items: center; min-height: 42px; padding: 0 12px; border: 1px solid var(--line); border-radius: var(--radius); color: #52606b; font-weight: 700; background: var(--paper); }
.decision-options .selected { color: #fff; border-color: var(--green-d); background: var(--green-d); }
.note-preview { padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.note-preview b { display: block; margin-bottom: 6px; }
.note-preview p { margin: 0; color: #52606b; font-size: 0.92rem; }

.faculty-band { background: var(--paper); }
.faculty-layout { display: grid; grid-template-columns: minmax(0, 0.75fr) minmax(520px, 1.25fr); gap: 46px; align-items: center; }
.faculty-layout .section-head { margin-bottom: 0; }
.faculty-dashboard {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: 0 26px 60px -44px rgba(22,25,29,0.48);
}
.dash-top { display: flex; justify-content: space-between; gap: 18px; align-items: center; padding: 18px 20px; color: #c5cdd4; background: var(--ink); }
.dash-top h3 { color: #fff; max-width: none; margin: 4px 0 0; }
.dash-top b { padding: 7px 10px; border-radius: 999px; color: #fff; background: rgba(0,154,68,0.28); font-size: 0.82rem; white-space: nowrap; }
.dash-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-bottom: 1px solid var(--line); }
.dash-metrics article { padding: 16px; border-right: 1px solid var(--line); }
.dash-metrics article:last-child { border-right: 0; }
.dash-metrics span { display: block; color: var(--steel); font-size: 0.76rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }
.dash-metrics b { display: block; margin-top: 4px; font-size: 1.15rem; }
.dash-metrics .green { color: var(--green-d); }
.dash-shot { display: block; width: 100%; height: auto; border-bottom: 1px solid var(--line); background: var(--paper-2); }
.dash-body { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(240px, 1.05fr); gap: 18px; padding: 20px; }
.missed-box { padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper-2); }
.missed-box ul { margin: 12px 0 0; padding-left: 1.1rem; color: #52606b; }
.missed-box li { margin-bottom: 6px; }
.artifact-stack { display: grid; gap: 8px; }
.artifact-stack span { display: flex; align-items: center; min-height: 36px; padding: 0 12px; border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); background: var(--paper); font-weight: 700; font-size: 0.9rem; }

.analogy { background: linear-gradient(180deg, var(--paper-2), var(--paper)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.analogy-grid { display: grid; grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1.22fr); gap: 48px; align-items: center; }
.sim-compare { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--paper); }
.sim-compare > div { min-height: 58px; display: flex; align-items: center; padding: 15px 18px; border-bottom: 1px solid var(--line); font-weight: 600; }
.sim-compare > div:nth-child(odd) { border-right: 1px solid var(--line); color: var(--steel); }
.sim-compare > div:nth-last-child(-n+2) { border-bottom: 0; }
.sim-compare .compare-head { min-height: 44px; color: var(--ink); background: var(--paper-2); font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.05em; }

.proof-band { background: var(--ink); color: #E7EBEC; }
.proof-grid { padding: 42px 0; display: grid; grid-template-columns: minmax(0, 0.7fr) minmax(420px, 1.3fr); gap: 36px; align-items: center; }
.proof-grid h2 { color: #fff; font-size: clamp(1.55rem, 3vw, 2.2rem); max-width: 15ch; margin: 0; }
.proof-points { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.proof-points li { padding: 10px 13px; color: #f7f9f8; border: 1px solid rgba(255,255,255,0.18); border-radius: var(--radius); background: rgba(255,255,255,0.06); font-size: 0.84rem; }

.section-anchor { position: relative; top: -86px; display: block; height: 0; visibility: hidden; }
.research-grid { display: grid; grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr); gap: 46px; align-items: center; }
.research .section-head { margin-bottom: 0; }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 22px; color: var(--green-d); font-weight: 700; }
.text-link span { transition: transform 0.2s var(--ease); }
.text-link:hover span { transform: translateX(4px); }
.research-device img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.research-visual { display: grid; gap: 14px; min-width: 0; }
.paint-panel {
    display: grid;
    gap: 16px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: 0 20px 46px -38px rgba(22,25,29,0.48);
}
.paint-title { display: grid; gap: 4px; }
.paint-title span { color: var(--green-d); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.paint-title b { font-size: 1rem; line-height: 1.22; }
.paint-profile { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
.paint-profile article {
    min-width: 0;
    min-height: 118px;
    display: grid;
    align-content: start;
    gap: 5px;
    padding: 12px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper-2);
}
.paint-profile article span {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: var(--green);
    border-radius: 50%;
    font-size: 0.84rem;
    font-weight: 700;
}
.paint-profile article b { font-size: 0.95rem; line-height: 1.08; }
.paint-profile article small { color: #52606b; font-size: 0.78rem; line-height: 1.25; }
.paint-flow {
    display: grid;
    grid-template-columns: auto minmax(28px, 1fr) auto minmax(28px, 1fr) auto;
    align-items: center;
    gap: 9px;
    color: var(--steel);
    font-size: 0.72rem;
    text-transform: uppercase;
}
.paint-flow b { height: 5px; border-radius: 999px; background: linear-gradient(90deg, var(--green), var(--mist)); }
.lab-research {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(230px, 0.58fr) minmax(0, 1.42fr);
    gap: 24px;
    align-items: start;
    padding-top: 18px;
}
.lab-research h3 { max-width: 14ch; margin: 0; font-size: clamp(1.45rem, 2.4vw, 2.1rem); }
.lab-research-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.lab-research-grid article {
    min-width: 0;
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper-2);
}
.lab-research-grid span { color: var(--green-d); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.lab-research-grid p { margin: 7px 0 0; color: #52606b; font-size: 0.92rem; line-height: 1.36; }

.contact { background: var(--paper-2); border-top: 1px solid var(--line); }
.contact-box { max-width: 700px; margin: 0 auto; padding: 46px 34px; text-align: center; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.contact-box .eyebrow { justify-content: center; }
.contact-box h2 { max-width: none; margin-bottom: 12px; }
.contact-box p:not(.eyebrow) { color: var(--steel); margin: 0 auto 24px; max-width: 48ch; }
.contact-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

.refs { border-top: 1px solid var(--line); padding: 38px 0 8px; }
.refs h2 { font-size: 1rem; margin-bottom: 12px; }
.refs ol { margin: 0; padding-left: 1.3rem; }
.refs li { color: var(--steel); font-size: 0.82rem; margin-bottom: 8px; }
.refs a { color: var(--green-d); }

/* Dark footer chrome: mirrors the nav so the dark-optimized DevPT logo reads
   clearly, and carries the 2px #009a44 brand hairline used across the family.
   #009a44 is fill/on-dark only here (never text on white). */
.site-footer {
    border-top: 2px solid #009a44;
    background: linear-gradient(180deg, #0d0d0f, #16171a);
    color: #E7EBEC;
    padding: 62px 0 24px;
}
.footer-shell {
    display: grid;
    grid-template-columns: minmax(260px, 0.9fr) minmax(0, 2.1fr);
    gap: 56px;
    align-items: start;
}
.footer-brand { max-width: 360px; }
.footer-mark { display: inline-flex; align-items: center; margin-bottom: 18px; }
.footer-logo { height: 34px; width: auto; }
.footer-brand p { margin: 0 0 24px; color: var(--mid); font-size: 1rem; }
.footer-contact { display: grid; gap: 14px; margin: 0; }
.footer-contact div { display: grid; gap: 3px; }
.footer-contact dt { color: var(--steel); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.footer-contact dd { margin: 0; color: #E7EBEC; font-weight: 600; }
/* #009a44 = bright/on-dark green (the text-carrying #06773a fails on this surface) */
.footer-contact a { color: #009a44; }
.footer-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 34px;
}
.footer-nav h2 {
    max-width: none;
    margin: 0 0 16px;
    font-size: 1rem;
    line-height: 1.2;
    color: #fff;
}
.footer-nav ul,
.footer-social {
    list-style: none;
    margin: 0;
    padding: 0;
}
.footer-nav li { margin-bottom: 9px; }
.footer-nav a {
    color: var(--mid);
    font-size: 0.92rem;
    font-weight: 500;
}
.footer-nav a:hover,
.footer-nav a:focus-visible,
.footer-bottom a:hover,
.footer-bottom a:focus-visible { color: #009a44; }
.footer-bottom {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 24px;
    margin-top: 56px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-social { display: flex; flex-wrap: wrap; gap: 10px; }
.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 46px;
    min-height: 38px;
    padding: 8px 12px;
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    color: #E7EBEC;
    font-size: 0.82rem;
    font-weight: 700;
}
.footer-social a:hover { border-color: rgba(255,255,255,0.32); color: #fff; }
.footer-meta { color: var(--mid); font-size: 0.86rem; margin: 0; text-align: center; }
.back-top {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 46px;
    min-height: 38px;
    padding: 8px 13px;
    border-radius: 999px;
    color: #fff;
    background: var(--green);
    font-weight: 700;
    font-size: 0.82rem;
}
.back-top:hover { background: var(--green-d); color: #fff; }

.reveal { opacity: 1; transform: none; transition: opacity 0.55s var(--ease), transform 0.55s var(--ease); }
.reveal[data-reveal-pending="true"] { opacity: 0; transform: translateY(16px); }
.reveal.in { opacity: 1; transform: none; }


.policy-main {
    min-height: 100vh;
    padding: 46px 0 72px;
    background: linear-gradient(180deg, var(--paper), var(--paper-2));
}
.policy-logo {
    display: inline-flex;
    margin: 0 0 34px calc((100% - min(100% - 56px, 820px)) / 2);
}
.policy-logo img { height: 34px; width: auto; }
.policy-card {
    width: min(100% - 56px, 820px);
    margin: 0 auto;
    padding: 46px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: 0 26px 60px -46px rgba(22,25,29,0.42);
}
.policy-card h1 { max-width: none; margin: 0 0 22px; font-size: clamp(2.25rem, 5vw, 3.6rem); }
.policy-card h2 { max-width: none; margin: 30px 0 8px; font-size: 1.18rem; }
.policy-card p { color: #52606b; font-size: 1.02rem; }
.policy-card a { color: var(--green-d); font-weight: 700; }
.policy-updated { margin: 34px 0 0; color: var(--steel); font-size: 0.82rem; }
.sitemap-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 26px; }
.sitemap-grid h2 { margin-top: 0; }
.sitemap-grid ul { margin: 0; padding-left: 1.1rem; }
.sitemap-grid li { margin-bottom: 8px; color: #52606b; }

@media (max-width: 980px) {
    .sitemap-grid { grid-template-columns: 1fr; }
    .footer-shell { grid-template-columns: 1fr; gap: 38px; }
    .footer-brand { max-width: 560px; }
    .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-bottom { grid-template-columns: 1fr; justify-items: start; }
    .footer-meta { text-align: left; }
    .back-top { justify-self: start; }
    .hero-grid, .case-board, .faculty-layout, .analogy-grid, .proof-grid, .research-grid { grid-template-columns: 1fr; }
    .lab-research { grid-template-columns: 1fr; }
    .lab-research h3 { max-width: none; }
    .lab-research-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .case-shot-wide, .dash-body { grid-template-columns: 1fr; }
    .hero { padding-top: 56px; }
    h1 { max-width: 12.5ch; }
    .skill-sequence { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .journey { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .dash-metrics { grid-template-columns: 1fr; }
    .dash-metrics article { border-right: 0; border-bottom: 1px solid var(--line); }
    .dash-metrics article:last-child { border-bottom: 0; }
}

@media (max-width: 680px) {
    .policy-logo { margin-left: 18px; }
    .policy-card { width: min(100% - 36px, 820px); padding: 32px 22px; }
    .site-footer { padding-top: 46px; }
    .footer-nav { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { margin-top: 40px; }
    .wrap { width: min(100% - 36px, var(--maxw)); }
    .nav-inner { height: auto; min-height: 64px; padding: 10px 0; }
    .nav-links { flex: 1; justify-content: flex-end; min-width: 0; }
    .nav-links a:not(.btn) { display: none; }
    .nav-links .cta-sm { width: auto; flex: none; padding-inline: 14px; }
    .hero { padding: 44px 0 48px; }
    h1 { font-size: clamp(2.35rem, 14vw, 3.5rem); }
    h2 { max-width: none; }
    .lede { font-size: 1.04rem; }
    .walkthrough-stage { aspect-ratio: 4 / 4.7; }
    .walkthrough-step figcaption { min-height: 96px; }
    .skill-sequence { grid-template-columns: 1fr; }
    .paint-profile { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .paint-profile article:last-child { grid-column: 1 / -1; }
    .paint-flow { grid-template-columns: 1fr; gap: 6px; }
    .paint-flow b { width: 100%; }
    .lab-research-grid { grid-template-columns: 1fr; }
    .journey { grid-template-columns: 1fr; }
    .block { padding: 64px 0; }
    .case-shot img { min-height: 190px; }
    .case-shot-copy, .case-decision, .dash-body { padding: 18px; }
    .dash-top { align-items: flex-start; flex-direction: column; }
    .sim-compare { grid-template-columns: 1fr; }
    .sim-compare > div, .sim-compare > div:nth-child(odd) { border-right: 0; }
    .sim-compare > div:nth-last-child(2) { border-bottom: 1px solid var(--line); }
    .proof-grid { padding: 34px 0; }
    .contact-box { padding: 34px 20px; }
    .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
    .reveal, .reveal[data-reveal-pending="true"] { opacity: 1; transform: none; }
}