:root {
    --bg: #F4F5F1;
    --surface: #FFFFFF;
    --surface-2: #EAEBE5;
    --ink: #20241F;
    --ink-soft: #5B6259;
    --accent: #5C7A6E;
    --accent-d: #3F5A50;
    --accent-t: rgba(92, 122, 110, 0.12);
    --line: #DBDDD5;
    --warn: #8B6F5C;
    --warn-t: rgba(139, 111, 92, 0.10);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 18px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

h1,
h2,
h3 {
    font-family: 'Sora', sans-serif;
    margin: 0;
    letter-spacing: -0.02em;
}

.mono {
    font-family: 'IBM Plex Mono', monospace;
}

p {
    margin: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

::selection {
    background: var(--accent);
    color: #fff;
}

.wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 32px;
}

.eyebrow {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-d);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
}

.eyebrow::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 2px;
    display: inline-block;
}

/* ---------- NAV ---------- */
nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(244, 245, 241, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color .3s ease, background .3s ease;
}

nav.scrolled {
    border-bottom-color: var(--line);
}

.nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 18px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 500;
    font-size: 17px;
    display: flex;
    align-items: center;
    gap: 9px;
}

.logo-mark {
    width: 18px;
    height: 18px;
    border-radius: 5px;
    background: linear-gradient(135deg, var(--accent), var(--accent-d));
    display: inline-block;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
    font-size: 14.5px;
    color: var(--ink-soft);
}

.nav-links a:hover {
    color: var(--ink);
}

.nav-cta {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn {
    font-family: 'Inter', sans-serif;
    font-size: 14.5px;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}

.btn-primary {
    background: var(--ink);
    color: #F4F5F1;
}

.btn-primary:hover {
    background: var(--accent-d);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    border-color: var(--line);
    color: var(--ink);
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent-d);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13.5px;
}

@media (max-width:860px) {
    .nav-links {
        display: none;
    }
}

/* ---------- HERO ---------- */
header.hero {
    padding: 88px 0 60px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: center;
}

.hero h1 {
    font-size: 52px;
    line-height: 1.06;
    font-weight: 700;
    max-width: 560px;
}

.hero-sub {
    margin-top: 22px;
    font-size: 17px;
    color: var(--ink-soft);
    max-width: 490px;
}

.hero-sub .mono {
    color: var(--ink);
    background: var(--surface-2);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 14.5px;
}

.hero-ctas {
    display: flex;
    gap: 14px;
    margin-top: 32px;
    align-items: center;
    flex-wrap: wrap;
}

.hero-note {
    margin-top: 16px;
    font-size: 13px;
    color: var(--ink-soft);
}

/* ---------- COMPILER DIAGRAM ---------- */
.diagram {
    position: relative;
    min-height: 360px;
}

.diagram-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
}

.diagram-svg path {
    fill: none;
    stroke: var(--line);
    stroke-width: 1.5;
}

.diagram-svg path.lit {
    stroke: var(--accent);
}

.token-card {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 210px;
    background: var(--ink);
    color: #EDEEE8;
    border-radius: var(--radius-md);
    padding: 18px 20px;
    box-shadow: 0 20px 40px -18px rgba(32, 36, 31, 0.45);
    z-index: 2;
}

.token-card .tc-label {
    font-size: 11px;
    color: #9CA79E;
    margin-bottom: 8px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.token-card .tc-key {
    font-size: 14px;
    color: #EDEEE8;
}

.token-card .tc-val {
    font-size: 20px;
    color: #8FB3A4;
    margin-top: 6px;
    font-weight: 500;
}

.out-col {
    position: absolute;
    right: 0;
    top: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    z-index: 2;
    width: 220px;
}

.out-chip {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 11px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    opacity: 0;
    transform: translateX(8px);
    animation: chipIn .5s ease forwards;
}

.out-chip .platform {
    font-family: 'IBM Plex Mono', monospace;
    color: var(--ink);
}

.out-chip .val {
    color: var(--accent-d);
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12.5px;
}

.out-chip:nth-child(1) {
    animation-delay: .5s;
}

.out-chip:nth-child(2) {
    animation-delay: .65s;
}

.out-chip:nth-child(3) {
    animation-delay: .8s;
}

.out-chip:nth-child(4) {
    animation-delay: .95s;
}

.out-chip:nth-child(5) {
    animation-delay: 1.1s;
}

@keyframes chipIn {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .out-chip {
        animation: none;
        opacity: 1;
        transform: none;
    }
}

@media (max-width:960px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 38px;
    }

    .diagram {
        display: none;
    }
}

/* ---------- SECTION SHELL ---------- */
section {
    padding: 88px 0;
}

.section-head {
    max-width: 620px;
    margin-bottom: 48px;
}

.section-head h2 {
    font-size: 34px;
    font-weight: 700;
}

.section-head .sub {
    margin-top: 14px;
    font-size: 16px;
    color: var(--ink-soft);
}

.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .6s ease, transform .6s ease;
}

.reveal.in {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ---------- FIT CHECK ---------- */
.fit-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.fit-card {
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--line);
}

.fit-card.quiet {
    background: var(--surface);
}

.fit-card.strong {
    background: var(--ink);
    color: #EDEEE8;
    border-color: var(--ink);
}

.fit-card h3 {
    font-size: 19px;
    margin-bottom: 14px;
    font-weight: 600;
}

.fit-card.strong h3 {
    color: #fff;
}

.fit-card p {
    font-size: 14.5px;
    color: var(--ink-soft);
}

.fit-card.strong p {
    color: #B9C2BB;
}

.fit-list {
    list-style: none;
    padding: 0;
    margin: 0 0 18px 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.fit-list li {
    font-size: 14.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.fit-list li::before {
    content: "";
    width: 6px;
    height: 6px;
    background: #8FB3A4;
    border-radius: 2px;
    flex-shrink: 0;
}

.tag {
    display: inline-block;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.tag.muted {
    background: var(--surface-2);
    color: var(--ink-soft);
}

.tag.on {
    background: rgba(255, 255, 255, 0.08);
    color: #8FB3A4;
}

@media (max-width:760px) {
    .fit-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- CHANGE MANAGEMENT ---------- */
.cm-callout {
    background: var(--surface-2);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    font-size: 16px;
    margin-bottom: 44px;
    max-width: 560px;
    border-left: 3px solid var(--accent);
}

.cm-callout .who {
    color: var(--ink-soft);
    font-size: 13px;
    display: block;
    margin-bottom: 6px;
}

.cm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.cm-col h4 {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.cm-col.bad h4 {
    color: var(--warn);
}

.cm-col.good h4 {
    color: var(--accent-d);
}

.file-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    font-size: 14px;
}

.file-row .dot {
    width: 7px;
    height: 7px;
    border-radius: 2px;
    background: var(--warn);
    flex-shrink: 0;
}

.file-row .fname {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    color: var(--ink-soft);
}

.good-flow {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 22px;
}

.good-token {
    background: var(--ink);
    color: #EDEEE8;
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    margin-bottom: 14px;
}

.good-token .k {
    color: #9CA79E;
}

.good-token .v {
    color: #8FB3A4;
}

.good-arrow {
    text-align: center;
    color: var(--ink-soft);
    font-size: 12.5px;
    font-family: 'IBM Plex Mono', monospace;
    margin: 10px 0;
    letter-spacing: 0.05em;
}

.good-out {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.good-out span {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    padding: 6px 11px;
    border-radius: 20px;
    background: var(--accent-t);
    color: var(--accent-d);
}

.good-result {
    margin-top: 16px;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--accent-d);
}

@media (max-width:760px) {
    .cm-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- PRICING ---------- */
.price-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.price-card {
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    border: 1px solid var(--line);
    background: var(--surface);
    display: flex;
    flex-direction: column;
}

.price-card.pro {
    background: var(--ink);
    color: #EDEEE8;
    border-color: var(--ink);
    position: relative;
}

.price-card.pro .badge {
    position: absolute;
    top: -12px;
    right: 32px;
    background: var(--accent);
    color: #fff;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 20px;
}

.price-card h3 {
    font-size: 20px;
    margin-bottom: 6px;
}

.price-card.pro h3 {
    color: #fff;
}

.price-card .desc {
    font-size: 14px;
    color: var(--ink-soft);
    margin-bottom: 24px;
}

.price-card.pro .desc {
    color: #B9C2BB;
}

.price-amount {
    font-family: 'Sora', sans-serif;
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 4px;
}

.price-period {
    font-size: 13px;
    color: var(--ink-soft);
    margin-bottom: 28px;
}

.price-card.pro .price-period {
    color: #B9C2BB;
}

.price-features {
    list-style: none;
    padding: 0;
    margin: 0 0 30px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.price-features li {
    font-size: 14px;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.price-features li::before {
    content: "+";
    color: var(--accent);
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
    flex-shrink: 0;
}

.price-card.pro .price-features li::before {
    color: #8FB3A4;
}

.price-card .btn {
    width: 100%;
    justify-content: center;
}

@media (max-width:760px) {
    .price-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- FOOTER ---------- */
footer {
    border-top: 1px solid var(--line);
    padding: 44px 0;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 26px;
    font-size: 14px;
    color: var(--ink-soft);
}

.footer-links a:hover {
    color: var(--ink);
}

.footer-fine {
    font-size: 12.5px;
    color: var(--ink-soft);
    margin-top: 18px;
}

.logout-banner {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-12px);
    background: #111318;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.01em;
    padding: 12px 22px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.4s ease;
    z-index: 999;
}

.logout-banner.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.logout-banner a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 2px;
    font-weight: 600;
}

.logout-banner a:hover {
    opacity: 0.85;
}

/* ---------- MOBILE CONTAINER PADDING ---------- */
@media (max-width:640px) {

    .wrap,
    .nav-inner {
        padding-left: 16px;
        padding-right: 16px;
    }
}