/* Cardn3 ad-platform pages + ad tiles (2026-10-28). Builds on site.css + service.css. Platform colour comes in as --ad-c / --ad-fg. */

/* ---------- letter tile (no official logos) ---------- */
.ad-mono { display: inline-grid; place-items: center; flex: none; width: 44px; height: 44px; border-radius: 12px; background: var(--ad-c, #171717); color: var(--ad-fg, #fff); font: 600 19px/1 var(--font); letter-spacing: -0.03em; text-transform: none; box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22), 0 6px 14px -8px var(--ad-c, #000); }
.ad-mono--xs { width: 20px; height: 20px; border-radius: 6px; font-size: 11px; box-shadow: none; }

/* ---------- tiles grid (solutions hub + related) ---------- */
.ad-tiles { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 600px) { .ad-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 992px) { .ad-tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.ad-tile { position: relative; display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 18px; background: #fff; border: var(--border); color: var(--c-text) !important; text-decoration: none; overflow: hidden;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease); }
.ad-tile::before { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 120% at 0% 50%, color-mix(in srgb, var(--ad-c) 10%, transparent), transparent 70%); opacity: 0; transition: opacity .25s var(--ease); }
.ad-tile:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--ad-c) 45%, var(--c-border)); box-shadow: 0 16px 30px -22px color-mix(in srgb, var(--ad-c) 70%, #000); }
.ad-tile:hover::before { opacity: 1; }
.ad-tile > * { position: relative; }
.ad-tile__text { display: grid; gap: 4px; min-width: 0; flex: 1; }
.ad-tile__text b { font-size: 15px; font-weight: 600; line-height: 1.25; }
.ad-tile__text small { display: inline-flex; align-items: center; gap: 6px; justify-self: start; padding: 2px 9px; border-radius: var(--r-pill); background: var(--c-surface-alt); border: var(--border); font-size: 10.5px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--c-text-3); }
.ad-tile__text small i { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.ad-tile__go { width: 18px; height: 18px; flex: none; fill: none; stroke: var(--c-faint); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s var(--ease), stroke .2s var(--ease); }
.ad-tile:hover .ad-tile__go { transform: translateX(3px); stroke: var(--c-text); }

/* ---------- hero ---------- */
.ad-hero { background: radial-gradient(60% 90% at 100% 0%, color-mix(in srgb, var(--ad-c) 14%, #fff) 0%, rgba(255, 255, 255, 0) 60%), radial-gradient(50% 60% at 0% 100%, #FFF8F0 0%, rgba(255, 248, 240, 0) 70%), #fff; }
.ad-eyebrow { gap: 8px; padding-left: 6px; }
.ad-art { position: relative; width: min(470px, 100%); margin-inline: auto; padding: 18px 0 30px; }
.ad-art::before { content: ""; position: absolute; inset: 10% 6% 0; border-radius: 50%; background: radial-gradient(closest-side, color-mix(in srgb, var(--ad-c) 30%, transparent), transparent); filter: blur(14px); }
.ad-art__panel { position: relative; display: grid; gap: 16px; padding: 16px 16px 18px; border-radius: 24px; background: rgba(255, 255, 255, .86); border: var(--border); box-shadow: 0 30px 60px -36px rgba(0, 0, 0, .45); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.ad-art__bar { display: flex; align-items: center; gap: 12px; padding: 4px 4px 14px; border-bottom: 1px dashed var(--c-border-strong); }
.ad-art__bar > span:nth-child(2) { display: grid; line-height: 1.25; flex: 1; }
.ad-art__bar b { font-size: 15px; font-weight: 600; }
.ad-art__bar small { font-size: 12px; color: var(--c-muted); }
.ad-art__dots { display: inline-flex; gap: 4px; }
.ad-art__dots i { width: 5px; height: 5px; border-radius: 50%; background: var(--c-border-strong); }
.ad-art__card { width: 86%; margin: 4px auto 0; transform: rotate(-3deg); }
.ad-art__rows { display: grid; gap: 8px; }
.ad-art__rows span { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 12px; background: var(--c-surface-alt); border: var(--border); font-size: 13px; color: var(--c-text-2); }
.ad-art__rows i { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: #fff; border: var(--border); color: var(--accent-text); }
.ad-art__rows .site-ico { width: 15px; height: 15px; }
.ad-art__chip { left: -10px; bottom: 6px; display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border-radius: var(--r-pill); font-size: 12.5px; font-weight: 500; color: var(--c-text-2); }
@media (prefers-reduced-motion: no-preference) { .ad-art__chip { animation: svc-bob 6s ease-in-out infinite; } }
@media (max-width: 575px) { .ad-art__chip { left: 0; } }

/* ---------- official facts ---------- */
.ad-facts { display: grid; gap: 16px; }
@media (min-width: 900px) { .ad-facts { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.ad-fact { position: relative; display: flex; flex-direction: column; gap: 8px; padding: 24px; border-radius: var(--r-xl); background: #fff; border: var(--border); }
.ad-fact__icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; background: var(--accent-tint); color: var(--accent-text); margin-bottom: 4px; }
.ad-fact h3 { margin: 0; font-size: 16.5px; font-weight: 600; }
.ad-fact p { margin: 0; font-size: 14.5px; line-height: 1.7; color: var(--c-muted); }
.ad-fact blockquote { margin: 0; padding: 10px 14px; border-left: 3px solid var(--accent); border-radius: 0 10px 10px 0; background: var(--c-surface-alt); font-size: 14px; line-height: 1.6; color: var(--c-text-2); font-style: italic; }
.ad-fact--restricted { border-color: #fcd9b0; background: linear-gradient(180deg, #FFF8EF, #fff 60%); }
.ad-fact--restricted .ad-fact__icon { background: #FDE68A; color: #92400E; }
.ad-sources { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; margin-top: 18px; font-size: 13px; color: var(--c-muted); }
.ad-sources > span { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; }
.ad-sources .site-ico { width: 16px; height: 16px; }
.ad-sources a { padding: 5px 12px; border-radius: var(--r-pill); background: #fff; border: var(--border); color: var(--c-text-2) !important; text-decoration: none; }
.ad-sources a::after { content: " ↗"; color: var(--c-faint); }
.ad-sources a:hover { border-color: var(--accent); }

/* ---------- steps ---------- */
.ad-path { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: -2px; }
.ad-path > span { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 8px; background: var(--c-surface-alt); border: var(--border); font-size: 12.5px; line-height: 1.4; color: var(--c-text-2); }
.ad-path > span + span::before { content: "›"; color: var(--c-faint); font-weight: 600; }
.ad-path > span:last-child { background: var(--accent-tint); border-color: #fcd9b0; color: var(--accent-text); }
.ad-path b { font-weight: 600; }
.ad-step__link { margin-top: auto; font-size: 13.5px; }
.ad-tip, .ad-policy { display: flex; gap: 10px; align-items: flex-start; max-width: 860px; margin: 22px auto 0; padding: 14px 16px; border-radius: var(--r-lg); font-size: 14px; line-height: 1.6; }
.ad-tip { background: #fff; border: var(--border); color: var(--c-text-2); }
.ad-policy { background: var(--accent-tint); border: 1px solid #fcd9b0; color: #7a3d03; }
.ad-tip .site-ico, .ad-policy .site-ico { width: 18px; height: 18px; margin-top: 2px; }

/* ---------- cost + cards ---------- */
.ad-split { display: grid; gap: 40px; }
@media (min-width: 992px) { .ad-split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; } }
.ad-split .site-h2 { margin: 8px 0 16px; }
.ad-muted { margin: -6px 0 16px; font-size: 14.5px; color: var(--c-muted); }
.ad-costs { display: grid; margin: 0; padding: 6px 20px; list-style: none; border-radius: var(--r-xl); border: var(--border); background: #fff; }
.ad-costs li { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; font-size: 14.5px; color: var(--c-text-2); }
.ad-costs li + li { border-top: 1px dashed var(--c-border); }
.ad-costs b { font-weight: 600; color: var(--c-text); font-variant-numeric: tabular-nums; }
.ad-costs .is-zero { color: var(--ok); }
.ad-cards { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.ad-cards a { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border-radius: 16px; border: var(--border); background: #fff; color: var(--c-text) !important; text-decoration: none; transition: border-color .2s var(--ease), box-shadow .2s var(--ease); }
.ad-cards a:hover { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(247, 147, 31, .14); }
.ad-cards__face { flex: none; width: 74px; }
.ad-cards__face .cface { border-radius: 7px; box-shadow: 0 8px 16px -10px rgba(0, 0, 0, .6); }
.ad-cards__face .cface__inner { visibility: hidden; }
.ad-cards__name { flex: 1; min-width: 0; font-size: 14.5px; font-weight: 500; }
.ad-cards b { font-size: 15px; font-weight: 600; font-variant-numeric: tabular-nums; }
.ad-cards__go { width: 16px !important; height: 16px !important; color: var(--c-faint); transition: transform .2s var(--ease); }
.ad-cards a:hover .ad-cards__go { transform: translateX(3px); color: var(--accent-text); }

/* ---------- "before you buy" notice for platforms that limit prepaid cards ---------- */
.ad-notice-wrap { position: relative; z-index: 2; margin-top: -28px; }
.ad-notice { display: grid; grid-template-columns: auto 1fr; gap: 14px 16px; align-items: start; padding: 18px 20px; border-radius: 20px; background: #FFFBF3; border: 1px solid #F8D9A8; box-shadow: 0 18px 40px -30px rgba(146, 64, 14, .6); }
@media (min-width: 768px) { .ad-notice { grid-template-columns: auto 1fr auto; align-items: center; } }
.ad-notice__icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: #FDE68A; color: #92400E; }
.ad-notice strong { display: block; font-size: 14.5px; font-weight: 600; color: #7a3d03; }
.ad-notice p { margin: 2px 0 0; font-size: 14px; line-height: 1.65; color: #7a3d03; }
.ad-notice q { font-style: italic; font-weight: 500; quotes: "“" "”"; }
.ad-notice__src { grid-column: 2; justify-self: start; padding: 8px 14px; border-radius: var(--r-pill); background: #fff; border: 1px solid #F8D9A8; font-size: 13px; font-weight: 500; color: #92400E !important; text-decoration: none; white-space: nowrap; }
@media (min-width: 768px) { .ad-notice__src { grid-column: auto; } }
.ad-notice__src:hover { border-color: #92400E; }