/* ===========================================================
   INFOHUB Media — premium PR landing
   Custom layer on top of Tailwind (Play CDN)
   =========================================================== */

:root {
  --crimson: #C00000;
  --crimson-deep: #9a0000;
  --gold: #BF8F00;
  --gold-soft: #d9b24a;
  --navy: #1F4E78;
  --navy-deep: #163a59;
  --bg: #FAFAF8;
  --bg-tint: #f3f1ea;
  --ink: #2D2D2D;
  --ink-strong: #111111;
  --line: rgba(17,17,17,0.10);
  --shadow-sm: 0 1px 2px rgba(17,17,17,.05), 0 8px 24px -16px rgba(17,17,17,.25);
  --shadow-md: 0 4px 12px -4px rgba(17,17,17,.10), 0 24px 48px -24px rgba(17,17,17,.28);
  --shadow-lg: 0 8px 24px -8px rgba(31,78,120,.18), 0 40px 80px -32px rgba(17,17,17,.35);
}

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  background-color: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* paper / silk-road texture --------------------------------- */
.paper {
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(17,17,17,0.035) 1px, transparent 0);
  background-size: 22px 22px;
}
.silk-road {
  background-image:
    radial-gradient(circle at 50% 50%, rgba(191,143,0,0.05) 0, transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%231F4E78' stroke-width='0.6' stroke-opacity='0.06'%3E%3Cpath d='M60 0 L120 60 L60 120 L0 60 Z'/%3E%3Cpath d='M60 24 L96 60 L60 96 L24 60 Z'/%3E%3Ccircle cx='60' cy='60' r='6'/%3E%3C/g%3E%3C/svg%3E");
}

/* type ------------------------------------------------------- */
.font-display { font-family: "Playfair Display", "Noto Serif SC", Georgia, serif; }
.font-body { font-family: "IBM Plex Sans", "Noto Sans SC", system-ui, sans-serif; }
.font-sc { font-family: "Noto Serif SC", serif; }
.font-mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--crimson);
  font-weight: 500;
}
.headline { color: var(--ink-strong); line-height: 1.04; letter-spacing: -0.01em; text-wrap: balance; }

/* gold foil hairline ---------------------------------------- */
.foil-line {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold-soft) 18%, var(--gold) 50%, var(--gold-soft) 82%, transparent);
  border: none;
}
.gold-text {
  background: linear-gradient(90deg, var(--gold) 0%, #e8c869 45%, var(--gold) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* chinese stamp (印章) --------------------------------------- */
.stamp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 78px; height: 78px;
  border: 2.5px solid var(--crimson);
  border-radius: 12px;
  color: var(--crimson);
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1.05;
  letter-spacing: 1px;
  position: relative;
  background:
    repeating-linear-gradient(45deg, rgba(192,0,0,0.04) 0 3px, transparent 3px 6px);
  transform: rotate(-6deg);
  box-shadow: inset 0 0 0 1px rgba(192,0,0,.25);
}
.stamp::after {
  content: "";
  position: absolute; inset: 5px;
  border: 1px solid rgba(192,0,0,.35);
  border-radius: 8px;
}

/* buttons ---------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  font-weight: 600; font-size: .95rem;
  padding: .92rem 1.6rem;
  border-radius: 4px;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s, background-color .25s, color .25s;
  cursor: pointer; border: 1px solid transparent; line-height: 1; white-space: nowrap;
}
.btn-primary { background: var(--crimson); color: #fff; box-shadow: 0 10px 24px -10px rgba(192,0,0,.6); }
.btn-primary:hover { background: var(--crimson-deep); transform: translateY(-2px); box-shadow: 0 16px 30px -12px rgba(192,0,0,.7); }
.btn-ghost { background: transparent; color: var(--ink-strong); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-strong); transform: translateY(-2px); }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-deep); transform: translateY(-2px); }
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: #a87d00; transform: translateY(-2px); }

/* cards ------------------------------------------------------ */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s, border-color .35s;
}
.card-lift:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(31,78,120,.25); }

/* placeholder drop-zone ------------------------------------- */
.placeholder {
  position: relative;
  background-color: #eceae3;
  background-image: repeating-linear-gradient(135deg, rgba(31,78,120,.07) 0 10px, transparent 10px 20px);
  border: 1px dashed rgba(31,78,120,.35);
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  overflow: hidden;
}
.placeholder .ph-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: .7rem; letter-spacing: .12em; text-transform: uppercase;
  background: rgba(250,250,248,.9); padding: .35rem .6rem; border-radius: 3px;
  border: 1px solid rgba(31,78,120,.25); text-align: center; max-width: 80%;
}

/* nav -------------------------------------------------------- */
.nav-link { position: relative; color: var(--ink); font-weight: 500; font-size: .92rem; transition: color .2s; }
.nav-link::after {
  content:""; position:absolute; left:0; bottom:-6px; height:2px; width:0; background: var(--crimson); transition: width .25s;
}
.nav-link:hover { color: var(--ink-strong); }
.nav-link:hover::after { width: 100%; }

.lang-btn { font-family:"IBM Plex Mono",monospace; font-size:.78rem; letter-spacing:.05em; padding:.25rem .5rem; border-radius:3px; color:var(--ink); opacity:.55; transition: all .2s; }
.lang-btn.active { opacity:1; color:var(--crimson); font-weight:600; }
.lang-btn:hover { opacity:1; }

/* logo strip wordmark --------------------------------------- */
.wordmark {
  font-family: "Playfair Display", serif;
  font-size: 1.25rem; font-weight: 700; letter-spacing: .01em;
  color: #9a9a92; filter: grayscale(1); opacity:.7;
  transition: color .3s, opacity .3s, filter .3s, transform .3s;
  white-space: nowrap;
}
.wordmark:hover { color: var(--crimson); opacity:1; filter: grayscale(0); transform: translateY(-2px); }
.wordmark .sub { font-family:"IBM Plex Mono",monospace; font-size:.6rem; letter-spacing:.1em; }

/* accordion -------------------------------------------------- */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { display:flex; justify-content:space-between; align-items:center; gap:1rem; width:100%; text-align:left; padding:1.4rem 0; cursor:pointer; }
.faq-a { max-height:0; overflow:hidden; transition:max-height .4s ease, opacity .3s; opacity:0; }
.faq-item.open .faq-a { opacity:1; }
.faq-icon { transition: transform .3s; color: var(--crimson); flex:none; }
.faq-item.open .faq-icon { transform: rotate(45deg); }

/* scroll reveal --------------------------------------------- */
.reveal { opacity:0; transform: translateY(24px); transition: opacity .7s cubic-bezier(.2,.8,.2,1), transform .7s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity:1; transform:none; }
.reveal[data-d="1"]{ transition-delay:.08s } .reveal[data-d="2"]{ transition-delay:.16s }
.reveal[data-d="3"]{ transition-delay:.24s } .reveal[data-d="4"]{ transition-delay:.32s }
.reveal[data-d="5"]{ transition-delay:.40s }
@media (prefers-reduced-motion: reduce){ .reveal{opacity:1; transform:none; transition:none} html{scroll-behavior:auto} }

/* pricing popular ------------------------------------------- */
.price-pop { border-color: var(--crimson); box-shadow: var(--shadow-md); position: relative; }
.price-pop::before {
  content: attr(data-badge);
  position:absolute; top:-13px; left:50%; transform:translateX(-50%);
  background: var(--crimson); color:#fff; font-size:.7rem; font-weight:600; letter-spacing:.08em;
  padding:.35rem .9rem; border-radius:20px; white-space:nowrap; text-transform:uppercase;
  font-family:"IBM Plex Mono",monospace;
}

/* connection arc (hero) ------------------------------------- */
.flow-dot { animation: flowpulse 2.4s ease-in-out infinite; }
@keyframes flowpulse { 0%,100%{opacity:.4} 50%{opacity:1} }
.dash-move { stroke-dasharray: 6 8; animation: dashmove 1.4s linear infinite; }
@keyframes dashmove { to { stroke-dashoffset: -28; } }

/* mobile menu ------------------------------------------------ */
.mobile-menu { transition: opacity .35s, visibility .35s; }
.mobile-menu.hidden-menu { opacity:0; visibility:hidden; pointer-events:none; }

/* modal ------------------------------------------------------ */
.modal-back { transition: opacity .3s; }
.modal-panel { transition: transform .35s cubic-bezier(.2,.8,.2,1), opacity .3s; }

/* form ------------------------------------------------------- */
.field { width:100%; background:#fff; border:1px solid var(--line); border-radius:4px; padding:.85rem 1rem; font-size:.95rem; color:var(--ink); transition:border-color .2s, box-shadow .2s; font-family:inherit; }
.field:focus { outline:none; border-color:var(--navy); box-shadow:0 0 0 3px rgba(31,78,120,.12); }
.field.invalid { border-color:var(--crimson); box-shadow:0 0 0 3px rgba(192,0,0,.10); }
.field-label { font-size:.78rem; font-weight:600; color:var(--ink-strong); letter-spacing:.02em; margin-bottom:.4rem; display:block; }
.err-msg { color:var(--crimson); font-size:.74rem; margin-top:.3rem; display:none; }
.field.invalid + .err-msg { display:block; }

/* misc ------------------------------------------------------- */
.section-pad { padding-top: clamp(4.5rem, 9vw, 8.5rem); padding-bottom: clamp(4.5rem, 9vw, 8.5rem); }
.divider-dot { width:5px;height:5px;border-radius:50%;background:var(--gold); display:inline-block; }
::selection { background: rgba(192,0,0,.15); }

/* real photography frames -------------------------------------- */
.photo-frame { position: relative; overflow: hidden; margin: 0; border: 1px solid var(--line); box-shadow: var(--shadow-sm); background: #eceae3; }
.photo-frame img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .9s cubic-bezier(.2,.8,.2,1); }
.photo-frame:hover img { transform: scale(1.045); }
.photo-frame::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to top, rgba(17,17,17,.52) 0%, rgba(17,17,17,0) 48%);
}
.photo-cap {
  position: absolute; left: .7rem; bottom: .6rem; z-index: 2;
  display: flex; align-items: center; gap: .5rem;
  font-family: "IBM Plex Mono", monospace; font-size: .68rem; letter-spacing: .1em;
  text-transform: uppercase; color: #fff; text-shadow: 0 1px 10px rgba(0,0,0,.55);
}
.photo-flag {
  font-size: .6rem; font-weight: 600; letter-spacing: .04em;
  padding: .14rem .42rem; border-radius: 3px;
  background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.32);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.photo-flag.cn { background: rgba(192,0,0,.32); border-color: rgba(255,255,255,.4); }

/* "published coverage" browser mockup -------------------------- */
.browser {
  margin: 0; border-radius: 10px; overflow: hidden; background: #fff;
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 32px 64px -28px rgba(0,0,0,.62), 0 14px 28px -18px rgba(0,0,0,.5);
  transform: perspective(1400px) rotateY(-6deg) rotateX(2deg);
  transition: transform .6s cubic-bezier(.2,.8,.2,1), box-shadow .6s;
}
.browser:hover { transform: perspective(1400px) rotateY(0) rotateX(0); box-shadow: 0 40px 80px -28px rgba(0,0,0,.7); }
.browser-bar { display: flex; align-items: center; gap: .45rem; padding: .7rem .9rem; background: #f0eee8; border-bottom: 1px solid rgba(17,17,17,.08); }
.bdot { width: 11px; height: 11px; border-radius: 50%; background: #cfcabd; flex: none; }
.bdot:nth-child(1){ background: #e05c54; } .bdot:nth-child(2){ background: #e6b14e; } .bdot:nth-child(3){ background: #4cae6a; }
.browser-url {
  margin-left: .5rem; flex: 1; font-family: "IBM Plex Mono", monospace; font-size: .66rem;
  color: #8a8578; background: #fff; border: 1px solid rgba(17,17,17,.08); border-radius: 5px;
  padding: .34rem .6rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.browser-body { padding: 1.4rem 1.5rem 1.6rem; }
.art-kicker { font-size: .72rem; letter-spacing: .08em; color: var(--crimson); font-weight: 700; margin-bottom: .5rem; }
.art-title { font-size: 1.32rem; line-height: 1.32; color: var(--ink-strong); font-weight: 700; margin-bottom: .55rem; }
.art-meta { font-size: .72rem; color: #9a948a; margin-bottom: 1rem; }
.art-img { width: 100%; height: 168px; object-fit: cover; border-radius: 6px; display: block; }
.art-lines { margin-top: 1.1rem; display: flex; flex-direction: column; gap: .55rem; }
.art-lines span { height: 8px; border-radius: 4px; background: rgba(17,17,17,.08); display: block; }
.art-tags { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1.2rem; }
.art-tags span { font-size: .7rem; color: var(--navy); background: rgba(31,78,120,.08); border: 1px solid rgba(31,78,120,.14); padding: .25rem .6rem; border-radius: 20px; }
@media (prefers-reduced-motion: reduce){ .browser{ transform:none } .photo-frame img{ transition:none } }
@media (max-width: 1023px){ .browser{ transform:none } }

/* back-to-top button ------------------------------------------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 45;
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--crimson); color: #fff; border: none; cursor: pointer;
  font-size: 1.4rem; line-height: 1;
  box-shadow: 0 10px 26px -10px rgba(192,0,0,.65);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: opacity .3s, transform .3s, background .25s, box-shadow .25s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--crimson-deep); transform: translateY(-3px); box-shadow: 0 16px 32px -12px rgba(192,0,0,.7); }
@media (max-width: 640px) { .to-top { right: 14px; bottom: 14px; width: 44px; height: 44px; } }
@media (prefers-reduced-motion: reduce) { .to-top { transition: opacity .2s; } }

/* about — brand/team mark (replaces personal founder photo) ---- */
.team-mark {
  width: 180px; height: 220px; border-radius: 6px;
  background: linear-gradient(155deg, var(--navy) 0%, var(--navy-deep) 100%);
  border: 1px solid rgba(17,17,17,.12); box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .9rem;
  position: relative; overflow: hidden; color: #fff;
}
.team-mark::before {
  content: ""; position: absolute; inset: 0; opacity: .9; pointer-events: none;
  background: radial-gradient(circle at 50% 28%, rgba(191,143,0,.16) 0, transparent 62%);
}
.team-mark-char { position: relative; font-size: 3rem; line-height: 1; font-weight: 700; letter-spacing: 3px; }
.team-mark-char::after {
  content: ""; display: block; width: 44px; height: 2px; margin: .75rem auto 0;
  background: linear-gradient(90deg, transparent, var(--gold-soft), transparent);
}
.team-mark-label { position: relative; font-size: .62rem; letter-spacing: .24em; color: rgba(255,255,255,.72); }

/* spam honeypot (hidden from humans) --------------------------- */
.hp { position: absolute !important; left: -9999px !important; top: -9999px !important; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
/* sending state */
.btn[disabled] { opacity: .65; cursor: progress; transform: none !important; }