/* Obsidian Forge v1.3 — shared component layer. Requires tokens.css */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--void); color: var(--titanium); font: 400 var(--fs-body)/1.65 var(--font-body); -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, video, svg { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--violet-text); outline-offset: 3px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gut); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Technical label (Rajdhani) */
.tag { display: inline-flex; align-items: center; gap: 8px; font: 600 var(--fs-tech)/1 var(--font-tech); letter-spacing: var(--track-tech); text-transform: uppercase; color: var(--silver); }
.tag.box { padding: 7px 10px 6px; border: 1px solid var(--rule-strong); background: var(--graphite); }
.tag.teal { color: var(--teal); }
.tag.teal.box { border-color: rgba(77,141,255,.45); }
.tag.violet { color: var(--violet-text); }
.tag::before { content: ""; width: 6px; height: 6px; background: currentColor; flex: none; }
.tag.plain::before { display: none; }
.kicker { font: 600 14px/1 var(--font-tech); letter-spacing: .32em; text-transform: uppercase; color: var(--violet-text); }

/* Buttons: state is shown by shape/border/icon as well as colour */
.btn { --c: var(--titanium); position: relative; display: inline-flex; align-items: center; gap: 12px; min-height: 48px; padding: 0 24px; font: 600 14px/1 var(--font-tech); letter-spacing: .2em; text-transform: uppercase; text-decoration: none; white-space: nowrap; border: 1px solid transparent; border-radius: var(--radius); cursor: pointer;
  clip-path: polygon(0 0, calc(100% - var(--notch)) 0, 100% var(--notch), 100% 100%, var(--notch) 100%, 0 calc(100% - var(--notch)));
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast), box-shadow var(--t-med); }
.btn .arrow { width: 16px; height: 1px; background: currentColor; position: relative; transition: width var(--t-fast) var(--ease-machine); }
.btn .arrow::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; transform: rotate(45deg); }
.btn:hover .arrow, .btn.is-hover .arrow { width: 26px; }
.btn-primary { background: var(--violet); color: var(--on-violet); box-shadow: 0 0 0 0 var(--violet-glow); }
.btn-primary:hover, .btn-primary.is-hover { background: var(--violet-press); box-shadow: 0 0 28px -4px var(--violet-glow); }
.btn-secondary { background: var(--graphite); color: var(--titanium); border-color: rgba(77,141,255,.55); }
.btn-secondary::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--teal); transition: width var(--t-fast); }
.btn-secondary:hover, .btn-secondary.is-hover { border-color: var(--teal); }
.btn-secondary:hover::before, .btn-secondary.is-hover::before { width: 6px; }
.btn-ghost { background: transparent; color: var(--titanium); border-color: var(--rule-strong); }
.btn-ghost:hover, .btn-ghost.is-hover { border-color: var(--silver); text-decoration: underline; text-underline-offset: 5px; }
.btn:focus-visible, .btn.is-focus { outline: 2px solid var(--titanium); outline-offset: 4px; clip-path: none; }
.btn:disabled, .btn.is-disabled { background: var(--gunmetal); color: var(--silver); border: 1px dashed var(--silver); box-shadow: none; cursor: not-allowed; }
.btn:disabled .arrow, .btn.is-disabled .arrow { display: none; }
.btn:active { transform: translateY(1px); }

/* Header + nav */
header.site { position: sticky; top: 0; z-index: 20; background: rgba(10,10,10,.86); backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.brand b { font: 600 15px/1 var(--font-brand); letter-spacing: .22em; }
nav.primary ul { display: flex; align-items: center; gap: 4px; margin: 0; padding: 0; list-style: none; }
nav.primary a { position: relative; display: block; padding: 10px 14px; font: 500 15px/1 var(--font-body); color: var(--silver); text-decoration: none; transition: color var(--t-fast); }
nav.primary a:hover { color: var(--titanium); }
nav.primary a[aria-current="page"] { color: var(--titanium); }
nav.primary a[aria-current="page"]::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px; background: var(--violet); box-shadow: 0 0 10px var(--violet-glow); }
nav.primary a[aria-current="page"]::before { content: ""; position: absolute; left: 4px; top: 50%; width: 4px; height: 4px; margin-top: -2px; background: var(--violet-text); }
nav.primary .sep { width: 1px; height: 20px; background: var(--rule-strong); margin: 0 10px; }
nav.primary a.repair { border: 1px solid rgba(77,141,255,.45); color: var(--titanium); padding: 9px 14px; }
nav.primary a.repair span { font: 600 11px/1 var(--font-tech); letter-spacing: .16em; color: var(--teal); margin-left: 6px; }
.menu-toggle { display: none; }

/* Project card */
.card { position: relative; margin: 0; background: var(--graphite); border: 1px solid var(--rule); transition: border-color var(--t-med), box-shadow var(--t-med); }
.card .media { position: relative; overflow: hidden; aspect-ratio: 16/10; background: var(--charcoal); border-bottom: 1px solid var(--rule); }
.card .media img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85) contrast(1.05); transition: transform var(--t-slow) var(--ease-machine), filter var(--t-med); }
.card .media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,10,10,0) 55%, rgba(10,10,10,.55)); pointer-events: none; }
.card .corner { position: absolute; width: 14px; height: 14px; border-color: var(--silver); border-style: solid; z-index: 2; opacity: .7; }
.card .corner.tl { top: 10px; left: 10px; border-width: 1px 0 0 1px; } .card .corner.tr { top: 10px; right: 10px; border-width: 1px 1px 0 0; }
.card .corner.bl { bottom: 10px; left: 10px; border-width: 0 0 1px 1px; } .card .corner.br { bottom: 10px; right: 10px; border-width: 0 1px 1px 0; }
.card .idx { position: absolute; top: 14px; left: 32px; z-index: 2; font: 600 12px/1 var(--font-tech); letter-spacing: .2em; color: var(--titanium); }
.card .body { padding: 22px 24px 26px; }
.card h3 { font: 500 var(--fs-h3)/1.25 var(--font-display); margin: 0 0 8px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--silver); font-size: var(--fs-small); line-height: 1.6; }
.card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; }
.card .more { display: inline-flex; gap: 8px; align-items: center; margin-top: 16px; font: 600 13px/1 var(--font-tech); letter-spacing: .18em; text-transform: uppercase; color: var(--violet-text); text-decoration: none; }
.card .more:hover { text-decoration: underline; text-underline-offset: 4px; }
.card:hover, .card.is-hover { border-color: rgba(122,75,255,.55); box-shadow: 0 0 0 1px rgba(122,75,255,.25), 0 18px 50px -24px var(--violet-glow); }
.card:hover .corner, .card.is-hover .corner { border-color: var(--violet-text); opacity: 1; }
.card:hover .media img, .card.is-hover .media img { transform: scale(1.03); filter: saturate(1) contrast(1.05); }

/* Annotation line */
.annot { display: flex; align-items: center; gap: 10px; font: 600 12px/1 var(--font-tech); letter-spacing: .18em; text-transform: uppercase; color: var(--teal); }
.annot .ln { flex: 1; height: 1px; background: linear-gradient(90deg, var(--teal), rgba(77,141,255,.15)); min-width: 30px; }
.annot .dot { width: 7px; height: 7px; border: 1px solid var(--teal); border-radius: 50%; }

/* Form */
.field { display: grid; gap: 8px; }
.field label { font: 600 12px/1 var(--font-tech); letter-spacing: .2em; text-transform: uppercase; color: var(--silver); }
.field input, .field textarea { font: 400 16px/1.4 var(--font-body); color: var(--titanium); background: var(--charcoal); border: 1px solid var(--gunmetal); border-bottom: 2px solid var(--silver); padding: 13px 14px; border-radius: var(--radius); transition: border-color var(--t-fast); }
.field input::placeholder { color: #878787; }
.field input:hover { border-color: var(--rule-strong); }
.field input:focus, .field input.is-focus { outline: none; border-color: var(--violet); border-bottom-color: var(--violet-text); box-shadow: 0 0 0 3px rgba(122,75,255,.25); }
.field input.is-error { border-bottom-color: var(--magenta); }
.field .hint { font-size: 13px; color: var(--silver); }
.field .err { font-size: 13px; color: var(--magenta); display: flex; gap: 6px; align-items: center; }
.field .err::before { content: "!"; display: inline-grid; place-items: center; width: 16px; height: 16px; border: 1px solid var(--magenta); font: 700 11px/1 var(--font-tech); }

/* Motif animation (disabled by prefers-reduced-motion above) */
.reactor { width: 100%; height: auto; overflow: visible; }
.reactor .spin-slow { transform-origin: 300px 300px; animation: spin 80s linear infinite; }
.reactor .spin-rev { transform-origin: 300px 300px; animation: spin 120s linear infinite reverse; }
.reactor .spin-med { transform-origin: 300px 300px; animation: spin 24s linear infinite; }
.pulse-v { animation: pulseV 4.8s var(--ease-machine) infinite; }
.pulse-m { animation: pulseM 7s ease-in-out infinite; }
.r-core { animation: core 4.8s ease-in-out infinite; transform-origin: 300px 300px; }
.circuit .signal { animation: signal 6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulseV { 0%, 100% { stroke-opacity: .55; } 50% { stroke-opacity: 1; } }
@keyframes pulseM { 0%, 70%, 100% { opacity: .15; } 80% { opacity: 1; } }
@keyframes core { 0%, 100% { opacity: .8; } 50% { opacity: 1; } }
@keyframes signal { from { stroke-dashoffset: 614; } to { stroke-dashoffset: 0; } }

/* notch diagonals so bordered buttons read as one machined edge */
.btn-secondary::after, .btn-ghost::after, .btn-ghost::before { content: ""; position: absolute; width: calc(var(--notch) * 1.4142); height: 1px; transform-origin: 0 0; transform: rotate(45deg); }
.btn-secondary::after, .btn-ghost::after { left: calc(100% - var(--notch) - 1px); top: 0; }
.btn-ghost::before { left: 0; top: calc(100% - var(--notch) - 1px); }
.btn-secondary::after { background: rgba(77,141,255,.55); }
.btn-secondary:hover::after, .btn-secondary.is-hover::after { background: var(--teal); }
.btn-ghost::after, .btn-ghost::before { background: var(--rule-strong); }
.btn-ghost:hover::after, .btn-ghost:hover::before, .btn-ghost.is-hover::after, .btn-ghost.is-hover::before { background: var(--silver); }
.btn:disabled::after, .btn.is-disabled::after, .btn.is-disabled::before { display: none; }