/* Authenticity pages: how-it-works explainer and the digital certificate mock-up (EN + AR). Builds on site.css. */
:root { --ok: #2f5d3a; --ok-soft: #e6efe7; --bad: #8a1c1c; --bad-soft: #f5e4e2; --warn: #8a5a12; --warn-soft: #f6ecda; --copper: #b06a3b; }
.mono { font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace; letter-spacing: 0; direction: ltr; unicode-bidi: isolate; }
.demo-tag { display: inline-block; font: 600 10px/1 var(--sans); letter-spacing: .2em; text-transform: uppercase; color: var(--warn); background: var(--warn-soft); padding: 6px 9px; }
html[lang=ar] .demo-tag { letter-spacing: 0; font-size: 12px; }

/* ---------- phone ---------- */
.phone { position: relative; overflow: hidden; width: 300px; max-width: 100%; aspect-ratio: 9 / 19; background: #0d0d0d; border-radius: 44px; padding: 12px; box-shadow: 0 30px 60px -20px rgba(0,0,0,.35), inset 0 0 0 2px #2a2a2a; }
.phone::before { content: ""; position: absolute; top: 20px; left: 50%; transform: translateX(-50%); width: 84px; height: 22px; background: #0d0d0d; border-radius: 12px; z-index: 3; }
.screen { position: relative; height: 100%; background: var(--porcelain); border-radius: 33px; overflow: hidden auto; scrollbar-width: none; }
.screen::-webkit-scrollbar { display: none; }
.screen::before { content: ""; position: sticky; top: 0; display: block; height: 40px; margin-bottom: -40px; background: var(--porcelain); z-index: 2; }

/* ---------- interactive tap scene ---------- */
.scene { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(28px, 5vw, 72px); align-items: center; margin-top: 56px; }
@media (max-width: 900px) { .scene { grid-template-columns: 1fr; } }
.stagebox { position: relative; background: radial-gradient(120% 90% at 50% 35%, #fbfbf9 0%, var(--studio) 100%); aspect-ratio: 1 / 1; overflow: hidden; touch-action: none; user-select: none; }
.stagebox .capart { position: absolute; left: 4%; bottom: 6%; width: 74%; }
html[lang=ar] .stagebox .capart { left: auto; right: 4%; }
.stagebox .target { position: absolute; width: 18%; aspect-ratio: 1; border-radius: 50%; border: 1.5px dashed var(--ink); opacity: .55; animation: pulse 2s var(--ease) infinite; pointer-events: none; }
.stagebox.done .target { display: none; }
@keyframes pulse { 0%, 100% { transform: scale(.9); opacity: .25; } 50% { transform: scale(1.08); opacity: .7; } }
.mini { position: absolute; width: 21%; aspect-ratio: 9 / 18; background: #0d0d0d; border-radius: 16px; padding: 5px; box-shadow: 0 18px 30px -12px rgba(0,0,0,.45); cursor: grab; touch-action: none; transition: transform .25s var(--ease); z-index: 2; }
.mini:active { cursor: grabbing; }
.mini.snap { transition: left .5s var(--ease), top .5s var(--ease); }
.mini .ms { width: 100%; height: 100%; border-radius: 12px; background: #1d1d1d; display: grid; place-items: center; text-align: center; color: #fff; font: 500 10px/1.3 var(--sans); padding: 6px; overflow: hidden; transition: background .4s; }
.mini .ms svg { width: 46%; height: auto; }
.mini.ok .ms { background: var(--porcelain); color: var(--ink); }
.waves { position: absolute; pointer-events: none; width: 1px; height: 1px; z-index: 1; }
.waves i { position: absolute; left: 50%; top: 50%; width: 30px; height: 30px; margin: -15px 0 0 -15px; border: 2px solid var(--ink); border-radius: 50%; opacity: 0; }
.waves.on i { animation: wave 1.4s var(--ease) infinite; }
.waves.on i:nth-child(2) { animation-delay: .35s; } .waves.on i:nth-child(3) { animation-delay: .7s; }
@keyframes wave { 0% { transform: scale(.4); opacity: .7; } 100% { transform: scale(5); opacity: 0; } }
.hint { position: absolute; top: 18px; inset-inline: 18px; text-align: center; font-size: 13px; color: var(--graphite); }
.stagebox .reset { position: absolute; bottom: 14px; inset-inline-end: 14px; }
.chipbtn { min-height: 40px; padding: 0 16px; border: 1px solid var(--ink); background: var(--white); color: var(--ink); font: 500 12px var(--sans); letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
html[lang=ar] .chipbtn { letter-spacing: 0; font-size: 14px; text-transform: none; }
.chipbtn:hover { background: var(--ink); color: var(--white); }

/* step log */
.log { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.log li { display: grid; grid-template-columns: 36px 1fr; gap: 14px; padding: 14px 0; border-top: 1px solid var(--divider); opacity: .32; transition: opacity .5s var(--ease); }
.log li.on { opacity: 1; }
.log .n { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--ink); display: grid; place-items: center; font: 400 15px var(--serif); transition: background .4s, color .4s; }
.log li.on .n { background: var(--ink); color: var(--white); }
.log h4 { margin: 0 0 4px; font: 500 15px/1.35 var(--sans); }
.log p { margin: 0; font-size: 14px; }
.log .val { display: inline-block; margin-top: 6px; padding: 4px 8px; background: var(--white); border: 1px solid var(--divider); font-size: 12px; word-break: break-all; }
.counter { display: inline-flex; gap: 8px; align-items: center; }
.counter b { font: 500 22px/1 var(--serif); min-width: 2ch; display: inline-block; }
.counter b.flip { animation: flip .5s var(--ease); }
@keyframes flip { 0% { transform: rotateX(90deg); } 100% { transform: none; } }
.checks { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 4px; font-size: 14px; }
.checks li { display: flex; gap: 8px; align-items: center; opacity: 0; transform: translateX(-6px); transition: opacity .4s, transform .4s; border: 0; padding: 0; grid-template-columns: none; }
.checks li.on { opacity: 1; transform: none; }
.checks li::before { content: "✓"; color: var(--ok); font-weight: 700; }
.verdict { margin-top: 18px; display: none; }
.verdict.on { display: block; animation: rise .6s var(--ease); }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ---------- inside the chip ---------- */
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 48px; }
@media (max-width: 860px) { .trio { grid-template-columns: 1fr; } }
.card { background: var(--white); border: 1px solid var(--divider); padding: 28px; }
.card .ico { width: 52px; height: 52px; border-radius: 50%; background: var(--porcelain); display: grid; place-items: center; margin-bottom: 18px; }
.card .ico svg { width: 26px; height: 26px; }
.card h3 { font-size: 24px; margin-bottom: 6px; }
.card .like { font: 300 italic 18px/1.4 var(--serif); color: var(--ink); margin: 0 0 10px; }
html[lang=ar] .card .like { font: 500 16px/1.7 var(--sans); }
.card p { font-size: 14px; margin: 0; }

/* ---------- counterfeiter game ---------- */
.score { display: flex; gap: 28px; align-items: baseline; margin-top: 36px; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--graphite); flex-wrap: wrap; }
html[lang=ar] .score { letter-spacing: 0; text-transform: none; font-size: 15px; }
.score b { font: 400 40px/1 var(--serif); color: var(--ink); margin-inline-end: 8px; letter-spacing: 0; }
.attacks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 28px; }
@media (max-width: 860px) { .attacks { grid-template-columns: 1fr; } }
.atk { perspective: 1200px; min-height: 300px; }
.atk button.face { all: unset; box-sizing: border-box; cursor: pointer; display: block; width: 100%; height: 100%; }
.atk .in3 { position: relative; height: 100%; min-height: 300px; transition: transform .8s var(--ease); transform-style: preserve-3d; }
.atk.flipped .in3 { transform: rotateY(180deg); }
.atk .fr, .atk .bk { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--divider); }
.atk .fr { background: var(--ink); color: var(--white); }
.atk .fr p { color: #bdbdb8; font-size: 14px; }
.atk .fr .emoji, .atk .bk .emoji { font-size: 34px; line-height: 1; margin-bottom: 18px; }
.atk .fr .go { margin-top: auto; font: 500 11px var(--sans); letter-spacing: .2em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; }
html[lang=ar] .atk .fr .go { letter-spacing: 0; font-size: 14px; }
.atk .fr h3, .atk .bk h3 { font-size: 26px; margin-bottom: 8px; }
.atk .bk { background: var(--bad-soft); transform: rotateY(180deg); border-color: var(--bad); }
.atk .bk h3 { color: var(--bad); }
.atk .bk p { font-size: 14px; margin: 0; }
.atk .bk .screen-msg { margin-top: auto; background: var(--white); border: 1px solid var(--bad); padding: 10px 12px; font-size: 13px; color: var(--bad); font-weight: 500; }

/* ---------- registry ---------- */
.ledger { display: grid; grid-template-columns: repeat(25, 1fr); gap: 3px; margin-top: 40px; max-width: 760px; direction: ltr; }
.ledger button { aspect-ratio: 1; border: 0; padding: 0; background: var(--divider); cursor: pointer; transition: background .2s, transform .2s; }
.ledger button.own { background: #9c9a95; }
.ledger button:hover { transform: scale(1.5); background: var(--graphite); position: relative; z-index: 1; }
.ledger button.me { background: var(--ink); box-shadow: 0 0 0 2px var(--porcelain), 0 0 0 3px var(--ink); }
@media (max-width: 560px) { .ledger { grid-template-columns: repeat(20, 1fr); gap: 2px; } }
.ledger-out { margin-top: 22px; min-height: 56px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; background: var(--white); border: 1px solid var(--divider); font-size: 14px; }
.pill.bad { border-color: var(--bad); color: var(--bad); background: var(--bad-soft); }
.shake { animation: shake .45s; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.legend { display: flex; gap: 22px; flex-wrap: wrap; font-size: 13px; color: var(--graphite); margin-top: 14px; }
.legend i { display: inline-block; width: 11px; height: 11px; vertical-align: -1px; margin-inline-end: 6px; }

/* ---------- certificate (inside the phone or full-width on mobile) ---------- */
.certwrap > * { min-width: 0; }
.certwrap { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: start; margin-top: 48px; }
@media (max-width: 860px) { .certwrap { grid-template-columns: 1fr; } .certwrap .phone { margin: 0 auto; } }
@media (max-width: 420px) { .certwrap .phone { width: 100%; aspect-ratio: auto; height: auto; border-radius: 0; padding: 0; background: none; box-shadow: none; } .certwrap .phone::before { display: none; } .certwrap .screen { border-radius: 0; border: 1px solid var(--divider); } }
.controls2 { display: grid; gap: 10px; max-width: 420px; }
.controls2 .chip { text-align: start; min-height: 52px; display: flex; gap: 12px; align-items: center; font-size: 14px; }
.controls2 .chip small { display: block; color: var(--graphite); font-size: 12px; margin-top: 2px; }
.controls2 .chip[aria-pressed="true"] small { color: #cfcfca; }

.cert { padding: 52px 18px 22px; font-size: 14px; }
.cert .bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.cert .bar img { height: 20px; width: auto; }
.cert .url { font-size: 10px; color: var(--graphite); background: var(--stone); border-radius: 99px; padding: 5px 10px; text-align: center; margin: 0 0 18px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.seal { text-align: center; padding: 22px 12px; border: 1px solid; margin-bottom: 16px; }
.seal svg { width: 54px; height: 54px; margin: 0 auto 8px; display: block; }
.seal h2 { font-size: 30px; line-height: 1.1; }
.seal p { margin: 6px auto 0; font-size: 13px; }
.seal.ok { border-color: var(--ok); background: var(--ok-soft); color: var(--ok); }
.seal.warn { border-color: var(--warn); background: var(--warn-soft); color: var(--warn); }
.seal.bad { border-color: var(--bad); background: var(--bad-soft); color: var(--bad); }
.seal.ok svg { animation: pop .7s var(--ease); }
@keyframes pop { 0% { transform: scale(.4); opacity: 0; } 70% { transform: scale(1.1); } 100% { transform: none; opacity: 1; } }
.seal p { color: inherit; }
.cert .ed { text-align: center; margin: 18px 0; }
.cert .ed .big { font: 400 46px/1 var(--serif); }
.cert .ed .big small { font-size: 20px; color: var(--graphite); }
.cert .ed .nm { font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--graphite); margin-top: 6px; }
html[lang=ar] .cert .ed .nm { letter-spacing: 0; font-size: 13px; }
.cert dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; margin: 0; padding: 14px 0; border-top: 1px solid var(--divider); border-bottom: 1px solid var(--divider); }
.cert dt { color: var(--graphite); font-size: 12px; }
.cert dd { margin: 0; text-align: end; font-size: 13px; }
.cert h5 { font: 600 11px var(--sans); letter-spacing: .2em; text-transform: uppercase; color: var(--graphite); margin: 20px 0 10px; }
html[lang=ar] .cert h5 { letter-spacing: 0; font-size: 13px; }
.owner { background: var(--white); border: 1px solid var(--divider); padding: 14px; }
.owner .who { font: 400 22px/1.2 var(--serif); }
.owner .btn, .cert .btn { width: 100%; justify-content: center; margin-top: 12px; min-height: 44px; }
.owner form { display: grid; gap: 8px; margin-top: 10px; }
.owner input { font: 400 15px var(--sans); padding: 10px 12px; border: 1px solid var(--divider); background: var(--porcelain); border-radius: 0; width: 100%; }
.tl { list-style: none; margin: 0; padding: 0; border-inline-start: 1px solid var(--divider); }
.tl li { position: relative; padding: 0 0 12px; padding-inline-start: 16px; font-size: 13px; }
.tl li::before { content: ""; position: absolute; inset-inline-start: -4px; top: 6px; width: 7px; height: 7px; border-radius: 50%; background: var(--ink); }
.tl li span { display: block; color: var(--graphite); font-size: 11px; }
details.chain { margin-top: 16px; background: var(--white); border: 1px solid var(--divider); }
details.chain summary { padding: 12px 14px; cursor: pointer; font-weight: 500; list-style: none; display: flex; justify-content: space-between; }
details.chain summary::after { content: "+"; }
details.chain[open] summary::after { content: "−"; }
details.chain dl { border-bottom: 0; padding: 4px 14px 14px; border-top: 1px solid var(--divider); }
.spin { width: 44px; height: 44px; border: 2px solid var(--divider); border-top-color: var(--ink); border-radius: 50%; animation: rot .8s linear infinite; margin: 90px auto 16px; }
@keyframes rot { to { transform: rotate(360deg); } }
.cert .centered { text-align: center; color: var(--graphite); }
.toast { position: absolute; left: 12px; right: 12px; bottom: 14px; background: var(--ink); color: var(--white); padding: 12px 14px; font-size: 13px; transform: translateY(140%); transition: transform .5s var(--ease); z-index: 4; }
.toast.on { transform: none; }