/* ═══════════════════════════════════════════════════════════════════
   THE SYSTEM   (pairs with js/sys.js; illustrations from method-v2.css)
   Six steps on a loop: a dial of six nodes with a gold progress arc and
   an orbiting light, and a stage that plays each step's illustration.
   Auto-advances while on screen; pausable; keyboard tabs.
   Fail-open: without JS step 01 shows and the nodes are plain links
   between panels (all panels exist in the DOM for SEO/AT).
   ═══════════════════════════════════════════════════════════════════ */

#methodology-section.sys {
    --sys-paper: #FAF9F6;
    --sys-body: rgba(250, 249, 246, 0.74);
    --sys-muted: rgba(250, 249, 246, 0.5);
    --sys-gold: #D5B473;
    --sys-champagne: #F6E7C1;
    --sys-ease: cubic-bezier(0.22, 1, 0.36, 1);
    --sys-d: min(410px, 84vw);
    position: relative;
    padding: clamp(6.5rem, 12vh, 9rem) 0 clamp(6rem, 11vh, 8rem);
    color: var(--sys-paper);
    background:
        radial-gradient(ellipse 55% 45% at 30% 45%, rgba(213, 180, 115, 0.14), transparent 70%),
        radial-gradient(ellipse 50% 50% at 85% 85%, rgba(90, 130, 100, 0.20), transparent 70%),
        linear-gradient(160deg, #22302A 0%, #17201B 55%, #101612 100%);
    border-bottom: 0;
    overflow: hidden;
    overflow: clip;
}
.sys-bg { position: absolute; inset: 0; pointer-events: none; }
.sys-bg i:nth-child(1) {
    position: absolute; inset: 0;
    background-image: radial-gradient(rgba(250, 249, 246, 0.10) 1px, transparent 1.2px);
    background-size: 26px 26px;
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, #000 20%, transparent 80%);
    mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, #000 20%, transparent 80%);
    opacity: 0.6;
}
.sys-bg i:nth-child(2), .sys-bg i:nth-child(3) {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(213, 180, 115, 0.08);
}
.sys-bg i:nth-child(2) { width: 1100px; height: 1100px; left: -380px; top: 50%; margin-top: -550px; }
.sys-bg i:nth-child(3) { width: 1500px; height: 1500px; left: -580px; top: 50%; margin-top: -750px; }

.sys-shell { position: relative; z-index: 1; max-width: 1240px; margin: 0 auto; padding: 0 1.5rem; }

/* ── Header ───────────────────────────────────────────────────────── */
.sys-head { display: flex; flex-direction: column; align-items: center; text-align: center; }
.sys-title {
    margin: 1.6rem 0 0;
    max-width: 50rem;
    font: 700 clamp(2.2rem, 4.8vw, 4.1rem)/1.08 'Playfair Display', Georgia, serif;
    letter-spacing: -0.02em;
    color: var(--sys-paper);
}
.sys-title em {
    font-family: 'Instrument Serif', 'Playfair Display', Georgia, serif;
    font-weight: 400;
    font-style: italic;
    color: var(--sys-gold);
    letter-spacing: -0.01em;
}
.sys-lede { margin: 1.25rem 0 0; color: var(--sys-body); font: 400 clamp(1.05rem, 1.5vw, 1.3rem)/1.5 'Plus Jakarta Sans', system-ui, sans-serif; }
.sys-head .more { margin-top: 0.9rem; max-width: 40rem; }

/* ── Stage ───────────────────────────────────────────────────────── */
.sys-stage {
    margin-top: clamp(3.5rem, 7vw, 5.5rem);
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 3rem);
    align-items: center;
}

/* Dial */
.sys-dial { position: relative; width: var(--sys-d); height: var(--sys-d); }
.sys-ring { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); overflow: visible; }
.sys-ring circle { fill: none; }
.sys-ring-track { stroke: rgba(250, 249, 246, 0.10); stroke-width: 1.5; stroke-dasharray: 2 6; }
.sys-ring-arc {
    stroke: var(--sys-gold);
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-dasharray: 0 600;
    filter: drop-shadow(0 0 8px rgba(213, 180, 115, 0.55));
    transition: stroke-dasharray 900ms var(--sys-ease);
}
.sys-orbit {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.sys-orbit i {
    position: absolute;
    left: 50%;
    top: 7.5%;
    width: 8px; height: 8px;
    margin: -4px 0 0 -4px;
    border-radius: 50%;
    background: var(--sys-champagne);
    box-shadow: 0 0 14px 4px rgba(213, 180, 115, 0.6);
    opacity: 0.85;
}
[data-sys-live] .sys-orbit { animation: sys-orbit 16s linear infinite; }
@keyframes sys-orbit { to { transform: rotate(360deg); } }

.sys-core {
    position: absolute;
    inset: 22%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(213, 180, 115, 0.12), rgba(213, 180, 115, 0) 70%);
}
.sys-core-n {
    font: 400 clamp(4rem, 9vw, 7rem)/0.9 'Instrument Serif', 'Playfair Display', Georgia, serif;
    color: var(--sys-paper);
    letter-spacing: -0.02em;
    transition: opacity 260ms var(--sys-ease), transform 500ms var(--sys-ease);
}
.sys-core-n[data-swap] { opacity: 0; transform: translate3d(0, 10px, 0); }
.sys-core-of {
    margin-top: 0.5rem;
    color: var(--sys-gold);
    font: 500 9.5px/1 'JetBrains Mono', ui-monospace, monospace;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

/* Nodes sit on the ring: rotate out, then rotate back upright */
.sys-node {
    --a: calc(var(--n) * 60deg);
    position: absolute;
    left: 50%;
    top: 50%;
    width: 0; height: 0;
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer;
    color: inherit;
    transform: rotate(var(--a)) translateY(calc(var(--sys-d) * -0.425)) rotate(calc(var(--a) * -1));
}
.sys-node-dot {
    position: absolute;
    left: -27px; top: -27px;
    width: 54px; height: 54px;
    display: grid; place-items: center;
    border-radius: 50%;
    background: #18221C;
    border: 1px solid rgba(213, 180, 115, 0.45);
    color: var(--sys-gold);
    font-size: 17px;
    box-shadow: 0 0 0 7px rgba(16, 22, 18, 0.9);
    transition: background-color 400ms var(--sys-ease), color 400ms var(--sys-ease), transform 500ms var(--sys-ease), box-shadow 500ms var(--sys-ease);
}
.sys-node-label {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    padding: 0.55em 0.9em;
    border-radius: 999px;
    white-space: nowrap;
    background: rgba(16, 22, 18, 0.88);
    border: 1px solid rgba(213, 180, 115, 0.35);
    color: var(--sys-paper);
    font: 600 10px/1 'JetBrains Mono', ui-monospace, monospace;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    box-shadow: 0 10px 24px -14px rgba(0, 0, 0, 0.8);
    transition: background-color 400ms var(--sys-ease), color 400ms var(--sys-ease), border-color 400ms var(--sys-ease);
}
.sys-node-label b { color: var(--sys-gold); font-weight: 600; transition: color 400ms var(--sys-ease); }
/* Each pill sits outside the ring, on the side its node faces */
.sys-node[data-sys-node="1"] .sys-node-label { bottom: 40px; left: 0; transform: translateX(-50%); }
.sys-node[data-sys-node="4"] .sys-node-label { top: 40px; left: 0; transform: translateX(-50%); }
.sys-node[data-sys-node="2"] .sys-node-label,
.sys-node[data-sys-node="3"] .sys-node-label { left: 40px; top: 0; transform: translateY(-50%); }
.sys-node[data-sys-node="5"] .sys-node-label,
.sys-node[data-sys-node="6"] .sys-node-label { right: 40px; top: 0; transform: translateY(-50%); }
.sys-node[aria-selected="true"] .sys-node-label { background: var(--sys-gold); border-color: var(--sys-gold); color: #132019; }
.sys-node[aria-selected="true"] .sys-node-label b { color: #132019; }
@media (hover: hover) and (pointer: fine) {
    .sys-node:not([aria-selected="true"]):hover .sys-node-label { border-color: var(--sys-gold); }
}
/* room for the pills around the dial */
.sys-dial { margin: 3.25rem 7.25rem; }

/* Pill row (small screens only): same tabs, laid out as a grid */
.sys-pills { display: none; }
.sys-pill {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 0.45em;
    padding: 0.8em 0.6em;
    border-radius: 999px;
    border: 1px solid rgba(213, 180, 115, 0.35);
    background: rgba(16, 22, 18, 0.6);
    color: var(--sys-paper);
    font: 600 10px/1 'JetBrains Mono', ui-monospace, monospace;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background-color 300ms var(--sys-ease), color 300ms var(--sys-ease);
}
.sys-pill b { color: var(--sys-gold); }
.sys-pill[aria-current="step"] { background: var(--sys-gold); color: #132019; border-color: var(--sys-gold); }
.sys-pill[aria-current="step"] b { color: #132019; }
.sys-node[aria-selected="true"] .sys-node-dot {
    background: var(--sys-gold);
    color: #132019;
    transform: scale(1.12);
    box-shadow: 0 0 0 7px rgba(16, 22, 18, 0.9), 0 0 0 9px rgba(213, 180, 115, 0.35), 0 0 34px 6px rgba(213, 180, 115, 0.45);
}
.sys-node[data-done] .sys-node-dot { border-color: var(--sys-gold); }
.sys-node:focus-visible .sys-node-dot { outline: 2px solid var(--sys-champagne); outline-offset: 4px; }
@media (hover: hover) and (pointer: fine) {
    .sys-node:not([aria-selected="true"]):hover .sys-node-dot { transform: scale(1.08); background: #22302A; }
}

/* Panels */
.sys-panels { position: relative; display: grid; }
.sys-panel {
    grid-area: 1 / 1;
    padding: clamp(1.5rem, 2.8vw, 2.5rem);
    border-radius: 28px;
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02) 65%);
    border: 1px solid rgba(213, 180, 115, 0.22);
    box-shadow: 0 50px 100px -50px rgba(0, 0, 0, 0.75), 0 1px 0 rgba(255, 255, 255, 0.07) inset;
    transition: opacity 520ms var(--sys-ease), transform 700ms var(--sys-ease), visibility 0s linear 0s;
}
.sys-panel[aria-hidden="true"] {
    opacity: 0;
    visibility: hidden;
    transform: translate3d(24px, 0, 0);
    transition: opacity 280ms var(--sys-ease), transform 400ms var(--sys-ease), visibility 0s linear 400ms;
}
.sys-panel-k { margin: 0; color: var(--sys-gold); font: 500 9.5px/1 'JetBrains Mono', ui-monospace, monospace; letter-spacing: 0.22em; text-transform: uppercase; }
.sys-panel-title { margin: 0.8rem 0 0.6rem; font: 700 clamp(1.6rem, 2.6vw, 2.25rem)/1.12 'Playfair Display', Georgia, serif; color: var(--sys-paper); }
.sys-panel-text { margin: 0 0 1.5rem; color: var(--sys-body); font: 400 1.02rem/1.55 'Plus Jakarta Sans', system-ui, sans-serif; max-width: 34rem; }
#methodology-section.sys .step-img-host {
    border: 1px solid rgba(213, 180, 115, 0.16);
    background:
        radial-gradient(120% 90% at 50% 0%, rgba(213, 180, 115, 0.12), transparent 60%),
        #111813;
}
.sys-link {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    margin-top: 1.25rem;
    color: var(--sys-gold);
    font: 600 0.92rem/1 'Plus Jakarta Sans', system-ui, sans-serif;
    text-decoration: none;
}
.sys-link i { font-size: 0.75em; transition: transform 300ms var(--sys-ease); }
.sys-link:hover i { transform: translateX(4px); }

.sys-controls { display: flex; align-items: center; gap: 0.9rem; margin-top: 1.1rem; }
.sys-timer { position: relative; flex: 1; height: 2px; border-radius: 2px; background: rgba(250, 249, 246, 0.1); overflow: hidden; overflow: clip; }
.sys-timer i { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(213, 180, 115, 0.6), var(--sys-gold)); transform-origin: 0 50%; transform: scaleX(0); }
.sys-timer i[data-run] { animation: sys-timer var(--sys-int, 5200ms) linear forwards; }
[data-sys-paused] .sys-timer i { animation-play-state: paused; }
@keyframes sys-timer { to { transform: scaleX(1); } }
.sys-pause {
    width: 34px; height: 34px;
    display: grid; place-items: center;
    border-radius: 50%;
    border: 1px solid rgba(250, 249, 246, 0.2);
    background: transparent;
    color: var(--sys-paper);
    font-size: 11px;
    cursor: pointer;
    transition: border-color 300ms var(--sys-ease), background-color 300ms var(--sys-ease);
}
.sys-pause:hover { border-color: var(--sys-gold); }
.sys-pause:focus-visible { outline: 2px solid var(--sys-champagne); outline-offset: 3px; }
.sys-controls { visibility: hidden; }
[data-sys="on"] .sys-controls { visibility: visible; }

/* CTA strip */
.sys-cta {
    margin-top: clamp(4rem, 8vw, 6rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
    padding: 1.6rem clamp(1.5rem, 3vw, 2.5rem);
    border-radius: 999px;
    border: 1px solid rgba(213, 180, 115, 0.3);
    background: rgba(213, 180, 115, 0.06);
}
.sys-cta-title { margin: 0; font: 700 clamp(1.3rem, 2vw, 1.7rem)/1.2 'Playfair Display', Georgia, serif; color: var(--sys-paper); }
.sys-cta-text { margin: 0.35rem 0 0; color: var(--sys-body); font: 400 0.98rem/1.4 'Plus Jakarta Sans', system-ui, sans-serif; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 1180px) {
    .sys-dial { margin: 3.25rem 7rem; }
}
@media (max-width: 1023px) {
    .sys-stage { grid-template-columns: 1fr; justify-items: center; }
    .sys-panels { width: 100%; }
}
@media (max-width: 639px) {
    #methodology-section.sys { --sys-d: min(340px, 86vw); }
    .sys-shell { padding: 0 1.25rem; }
    .sys-node-dot { width: 44px; height: 44px; left: -22px; top: -22px; font-size: 14px; }
    .sys-node-label { display: none; }
    .sys-dial { margin: 0; }
    .sys-pills { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; width: 100%; }
    .sys-panel { border-radius: 22px; }
    .sys-cta { border-radius: 24px; }
    .sys-cta .btn-atelier { width: 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
    #methodology-section.sys *, #methodology-section.sys *::before, #methodology-section.sys *::after { animation: none !important; transition: none !important; }
}