/* ============================================================
   rsriv.com — the estate
   paper, ink, oxblood. orange is the alive color.
   one stylesheet, no build step. view source, it's all there.
   ============================================================ */

:root {
  --paper: #f4eee0;
  --ink: #241c11;
  --ink-soft: #4c4232;
  --faded: #8a7d64;
  --ox: #7c2214;
  --orange: #d96c1e;   /* gi cloth. the alive color. */
  --blue: #2b5f9e;     /* the undershirt. */
  --rule: rgba(36, 28, 17, 0.3);
  --rule-soft: rgba(36, 28, 17, 0.13);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", -apple-system, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--ox); color: var(--paper); }
.serif { font-family: "Newsreader", Georgia, serif; }
.mono { font-family: "IBM Plex Mono", monospace; }

/* paper grain */
body::after {
  content: ""; position: fixed; inset: -100px; z-index: 50; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.04;
  animation: grain 1.2s steps(4) infinite;
}
@keyframes grain {
  0% { transform: translate(0,0); } 25% { transform: translate(-40px,30px); }
  50% { transform: translate(30px,-45px); } 75% { transform: translate(-25px,-20px); }
  100% { transform: translate(0,0); }
}

/* hairline frame — the bats hang from this */
#frame {
  position: fixed; inset: 13px; z-index: 40; pointer-events: none;
  border: 1px solid var(--rule);
}
@media (max-width: 640px) { #frame { inset: 8px; } }

.page { max-width: 760px; margin: 0 auto; padding: 0 clamp(26px, 6vw, 56px); }

/* masthead + rooms nav */
header.masthead {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-top: 44px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px; letter-spacing: 0.22em; color: var(--faded);
  text-transform: lowercase;
}
header.masthead a { color: var(--faded); text-decoration: none; border: none; }
header.masthead a:hover { color: var(--orange); }
nav.rooms {
  margin-top: 18px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px; letter-spacing: 0.18em; text-transform: lowercase;
  color: var(--faded);
  display: flex; flex-wrap: wrap; gap: 6px 16px;
}
nav.rooms a {
  color: var(--faded); text-decoration: none;
  border-bottom: 1px solid transparent; padding-bottom: 2px;
  transition: color .25s, border-color .25s;
}
nav.rooms a:hover { color: var(--orange); border-color: var(--orange); }
nav.rooms a[aria-current="page"] { color: var(--ink); border-color: var(--rule); }

/* hero */
#hero { padding: clamp(56px, 11vh, 120px) 0 56px; }
h1 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 460;
  font-size: clamp(44px, 8.5vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.01em;
}
h1 .l { display: inline-block; transition: transform 0.35s cubic-bezier(.2,2.2,.4,1); }
h1 .l:hover { transform: translateY(-0.08em) rotate(-2.5deg); color: var(--orange); }
.thesis {
  margin-top: 30px;
  font-family: "Newsreader", Georgia, serif;
  font-style: italic; font-weight: 500;
  font-size: clamp(22px, 3.6vw, 30px); line-height: 1.35;
  color: var(--ink);
}
.thesis em { font-style: italic; color: var(--ox); }
.lede {
  margin-top: 26px; max-width: 54ch;
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(18px, 2.5vw, 22px); line-height: 1.65; color: var(--ink);
  font-weight: 400;
}
.lede + .lede { margin-top: 18px; }
.lede.quiet { font-size: clamp(16px, 2.2vw, 18px); color: var(--ink-soft); }
.lede i { color: var(--ox); }

/* handwritten notes */
.note {
  font-family: "Caveat", cursive; font-weight: 600;
  color: var(--ox); font-size: 20px; line-height: 1.25;
  transform: rotate(-3.5deg); display: inline-block;
}
#hero .note { margin-top: 28px; }

/* sections */
section { padding: 74px 0 10px; }
.sect-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 40px; }
.sect-head .num {
  font-family: "IBM Plex Mono", monospace; font-size: 11px;
  letter-spacing: 0.2em; color: var(--ox);
}
.sect-head h2 {
  font-family: "Newsreader", Georgia, serif;
  font-weight: 500; font-size: 22px; letter-spacing: 0.01em; color: var(--ink);
}
.sect-head::after { content: ""; height: 1px; background: var(--rule-soft); flex: 1; align-self: center; }
.asof {
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px;
  letter-spacing: 0.18em; color: var(--faded); text-transform: uppercase;
}
section p { max-width: 58ch; color: var(--ink-soft); }
section p + p { margin-top: 14px; }
section p b { font-weight: 600; color: var(--ink); }
section a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rule); transition: color .25s, border-color .25s; }
section a:hover { color: var(--orange); border-color: var(--orange); }

/* doors (gate) */
.doors { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .doors { grid-template-columns: 1fr; } }
a.door {
  display: block; border: 1px solid var(--rule-soft); border-bottom: 1px solid var(--rule-soft);
  padding: 22px 22px 24px; text-decoration: none; color: var(--ink);
  transition: border-color .3s, transform .3s, background .3s;
  position: relative;
}
a.door:hover { border-color: var(--orange); transform: translateY(-3px); background: rgba(217,108,30,0.03); }
a.door .no {
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px;
  letter-spacing: 0.24em; color: var(--faded); text-transform: uppercase;
}
a.door h3 {
  font-family: "Newsreader", Georgia, serif; font-weight: 500;
  font-size: 26px; line-height: 1.15; margin-top: 8px;
}
a.door:hover h3 { color: var(--ox); }
a.door p { margin-top: 8px; font-size: 14.5px; color: var(--ink-soft); max-width: none; }
a.door .hinge {
  position: absolute; top: 22px; right: 20px;
  font-family: "IBM Plex Mono", monospace; font-size: 12px; color: var(--faded);
  transition: color .3s, transform .3s;
}
a.door:hover .hinge { color: var(--orange); transform: translateX(3px); }

/* entries (study) */
.entry { position: relative; padding: 36px 0 40px; border-top: 1px solid var(--rule-soft); }
.entry:last-of-type { border-bottom: 1px solid var(--rule-soft); }
.entry .no {
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px;
  letter-spacing: 0.24em; color: var(--faded); text-transform: uppercase; margin-bottom: 10px;
}
.entry h3 {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(26px, 4.2vw, 34px); font-weight: 500; line-height: 1.1;
  display: inline-block;
}
.entry h3 a:hover::after { content: " →"; font-size: 0.55em; vertical-align: 0.5em; }
.entry p { margin-top: 14px; font-size: 15.5px; }
.entry .spec {
  margin-top: 12px; font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px; letter-spacing: 0.12em; color: var(--faded); text-transform: uppercase;
}
.entry .pull {
  font-family: "Newsreader", Georgia, serif; font-style: italic;
  font-size: clamp(17px, 2.6vw, 20px); color: var(--ink); line-height: 1.55;
  max-width: 40ch; margin-top: 14px;
}

/* stamps */
.stamp {
  position: absolute; top: 40px; right: 0;
  font-family: "IBM Plex Mono", monospace; font-weight: 500;
  font-size: 11.5px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--ox); border: 2px solid var(--ox);
  padding: 6px 12px 5px 15px; border-radius: 3px;
  transform: rotate(-6deg);
  opacity: 0;
  mix-blend-mode: multiply;
  filter: url(#roughen);
}
.stamp.ink { color: var(--ink-soft); border-color: var(--ink-soft); }
.stamp.faded { color: var(--faded); border-color: var(--faded); }
.stamp.orange { color: var(--orange); border-color: var(--orange); }
.stamp.static { position: static; display: inline-block; opacity: 0.9; }
.entry.stamped .stamp, .stamped .stamp { animation: thump 0.5s cubic-bezier(.34,1.6,.6,1) forwards; }
@keyframes thump {
  0% { opacity: 0; transform: scale(2.4) rotate(-20deg); }
  55% { opacity: 1; transform: scale(0.93) rotate(-4deg); }
  100% { opacity: 0.9; transform: scale(1) rotate(-6deg); }
}
@media (max-width: 640px) { .stamp { position: static; display: inline-block; margin-top: 16px; } }
.entry .note { position: absolute; right: -4px; bottom: 22px; max-width: 190px; text-align: right; }
@media (max-width: 900px) { .entry .note { position: static; display: block; text-align: left; margin-top: 16px; } }

/* lessons */
.lesson {
  display: flex; gap: 20px; align-items: baseline;
  padding: 16px 0; border-top: 1px solid var(--rule-soft); max-width: 58ch;
}
.lesson:last-of-type { border-bottom: 1px solid var(--rule-soft); }
.lesson .n { font-family: "IBM Plex Mono", monospace; font-size: 11px; color: var(--faded); }
.lesson .t {
  font-family: "Newsreader", Georgia, serif; font-size: clamp(18px, 2.6vw, 21px);
  color: var(--ink); line-height: 1.5;
}
.lesson .t i { color: var(--ox); }

/* library essays */
.essay { padding: 36px 0 44px; border-top: 1px solid var(--rule-soft); position: relative; }
.essay:last-of-type { border-bottom: 1px solid var(--rule-soft); }
.essay h3 {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(24px, 4vw, 30px); font-weight: 500; line-height: 1.15;
}
.essay .no {
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px;
  letter-spacing: 0.24em; color: var(--faded); text-transform: uppercase; margin-bottom: 10px;
}
.essay p { margin-top: 14px; font-size: 15.5px; }
.essay .pull {
  font-family: "Newsreader", Georgia, serif; font-style: italic;
  font-size: clamp(17px, 2.6vw, 20px); color: var(--ink); line-height: 1.55;
  max-width: 44ch; margin-top: 16px;
}

/* arcade stats */
.stat-row { display: flex; flex-wrap: wrap; gap: 14px; margin: 8px 0 6px; }
.stat {
  border: 1px solid var(--rule-soft); padding: 18px 22px; min-width: 150px;
  transition: border-color .3s;
}
.stat:hover { border-color: var(--orange); }
.stat .big {
  font-family: "Newsreader", Georgia, serif; font-weight: 500;
  font-size: clamp(30px, 5vw, 42px); line-height: 1; color: var(--ink);
}
.stat .lbl {
  margin-top: 8px; font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: 0.18em; color: var(--faded); text-transform: uppercase;
}

/* the gi block — orange over blue, that's the whole homage */
.gi {
  margin-top: 26px; max-width: 420px;
  border: 1px solid var(--rule-soft);
}
.gi .gi-orange { height: 64px; background: var(--orange); }
.gi .gi-blue { height: 22px; background: var(--blue); }
.gi .gi-caption {
  padding: 10px 14px;
  font-family: "IBM Plex Mono", monospace; font-size: 10.5px;
  letter-spacing: 0.14em; color: var(--faded); text-transform: lowercase;
}

/* tools (workshop) */
.tool {
  display: flex; gap: 20px; align-items: baseline;
  padding: 16px 0; border-top: 1px solid var(--rule-soft); max-width: 58ch;
}
.tool:last-of-type { border-bottom: 1px solid var(--rule-soft); }
.tool .name {
  font-family: "Newsreader", Georgia, serif; font-size: clamp(18px, 2.6vw, 21px);
  color: var(--ink); min-width: 140px;
}
.tool .role { font-size: 14.5px; color: var(--ink-soft); }

/* photo slots — honest placeholders until the photos exist */
.photo-slot {
  margin-top: 26px; max-width: 460px; min-height: 220px;
  border: 1px dashed var(--rule);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; text-align: center;
}
.photo-slot .note { transform: rotate(-2.5deg); }

/* silhouette figures */
.figure { margin-top: 26px; }
.figure svg { display: block; max-width: 100%; height: auto; }
.figure .cap {
  margin-top: 10px; font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px; letter-spacing: 0.18em; color: var(--faded); text-transform: lowercase;
}

/* reach */
#reach { padding-bottom: 40px; }
#reach .addr {
  font-family: "Newsreader", Georgia, serif;
  font-size: clamp(24px, 4.4vw, 36px); font-weight: 460; line-height: 1.3;
}
#reach .links {
  margin-top: 24px; font-family: "IBM Plex Mono", monospace;
  font-size: 11.5px; letter-spacing: 0.2em; text-transform: uppercase;
}
#reach .links a { color: var(--ink-soft); border-bottom: 1px solid var(--rule-soft); padding-bottom: 2px; }
#reach .links a:hover { color: var(--orange); border-color: var(--orange); }
#reach .links .sep { margin: 0 14px; color: var(--rule); border: none; }
#reach .note { margin-top: 30px; transform: rotate(-2.5deg); }

/* colophon */
footer {
  text-align: center; padding: 30px 20px 54px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--faded); line-height: 2;
}
footer .co-note {
  display: block; margin: 26px auto 14px; max-width: 340px;
  font-family: "Caveat", cursive; font-weight: 600; text-transform: none;
  letter-spacing: 0; font-size: 20px; line-height: 1.3; color: var(--ox);
  transform: rotate(-2deg);
}
footer .cave-door { display: none; }
footer .cave-door.open { display: inline; }
footer .cave-door a { color: var(--orange); text-decoration: none; border-bottom: 1px solid var(--orange); }

/* sigils — five rooms, five marks. find them. */
.sigil {
  display: inline-block; background: none; border: none; cursor: pointer;
  padding: 4px; line-height: 0; vertical-align: middle;
  opacity: 0.32; transition: opacity .3s, transform .3s;
  color: var(--ink-soft);
}
.sigil:hover { opacity: 0.75; transform: rotate(-8deg) scale(1.12); }
.sigil svg { display: block; }
.sigil.lit { opacity: 1; color: var(--orange); }
.sigil.lit:hover { transform: none; }
.sigil-kanji {
  font-family: "Newsreader", Georgia, serif; font-size: 26px; line-height: 1;
  color: inherit;
}

/* toast */
#toast {
  position: fixed; left: 24px; bottom: 24px; z-index: 60;
  font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: 0.16em;
  text-transform: lowercase; color: var(--paper); background: var(--ink);
  padding: 10px 16px; border-radius: 2px;
  opacity: 0; transform: translateY(8px); transition: opacity .4s, transform .4s;
  pointer-events: none; max-width: 70vw;
}
#toast.show { opacity: 1; transform: none; }
#toast .hot { color: #e89a5f; }

/* the keeper — the house is listening */
#keeper {
  position: fixed; right: 22px; bottom: 22px; z-index: 55;
  font-family: "IBM Plex Mono", monospace;
}
#keeper-toggle {
  background: var(--paper); color: var(--faded);
  border: 1px solid var(--rule); border-radius: 2px;
  font-family: inherit; font-size: 10.5px; letter-spacing: 0.16em; text-transform: lowercase;
  padding: 9px 14px; cursor: pointer;
  transition: color .3s, border-color .3s;
  box-shadow: 0 2px 14px rgba(36,28,17,0.08);
}
#keeper-toggle:hover { color: var(--orange); border-color: var(--orange); }
#keeper-toggle .dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: var(--orange); margin-right: 8px;
  animation: breathe 3.2s ease-in-out infinite;
}
@keyframes breathe { 0%,100% { opacity: 0.35; } 50% { opacity: 1; } }
#keeper-panel {
  display: none;
  position: absolute; right: 0; bottom: 46px;
  width: min(320px, calc(100vw - 44px));
  background: var(--paper); border: 1px solid var(--rule);
  box-shadow: 0 10px 40px rgba(36,28,17,0.16);
}
#keeper.open #keeper-panel { display: block; }
#keeper-log {
  max-height: 260px; overflow-y: auto; padding: 16px;
  font-size: 12px; line-height: 1.6; letter-spacing: 0.02em;
}
#keeper-log .k { color: var(--ink-soft); margin-bottom: 12px; }
#keeper-log .k::before { content: "⌂ "; color: var(--orange); }
#keeper-log .v { color: var(--faded); margin-bottom: 12px; text-align: right; }
#keeper-form { display: flex; border-top: 1px solid var(--rule-soft); }
#keeper-input {
  flex: 1; border: none; background: transparent; outline: none;
  font-family: inherit; font-size: 12px; color: var(--ink);
  padding: 12px 14px;
}
#keeper-input::placeholder { color: var(--faded); }
#keeper-send {
  border: none; background: transparent; cursor: pointer;
  font-family: inherit; font-size: 12px; color: var(--ox); padding: 0 14px;
}
#keeper-send:hover { color: var(--orange); }
@media (max-width: 640px) {
  #keeper { right: 14px; bottom: 14px; }
  #toast { left: 14px; bottom: 64px; }
}

/* bats */
.bat {
  position: fixed; left: 0; top: 0; z-index: 45;
  pointer-events: none;
  mix-blend-mode: multiply;
  will-change: transform;
}
.bat svg { display: block; overflow: visible; }
.bat .wing { transform-box: fill-box; }
.bat .wing.w-l { transform-origin: 96% 35%; animation: flapL var(--flap, 0.5s) ease-in-out infinite; }
.bat .wing.w-r { transform-origin: 4% 35%;  animation: flapR var(--flap, 0.5s) ease-in-out infinite; }
.bat.hanging .wing.w-l { animation: none; transform: rotate(38deg) scaleY(0.7); }
.bat.hanging .wing.w-r { animation: none; transform: rotate(-38deg) scaleY(0.7); }
@keyframes flapL { 0%,100% { transform: rotate(20deg) scaleY(0.94); } 50% { transform: rotate(-26deg) scaleY(1.04); } }
@keyframes flapR { 0%,100% { transform: rotate(-20deg) scaleY(0.94); } 50% { transform: rotate(26deg) scaleY(1.04); } }

/* reveals */
.rv { opacity: 0; transform: translateY(18px); transition: opacity 0.8s ease, transform 0.8s ease; }
.rv.in { opacity: 1; transform: none; }
h1 .l { opacity: 0; transform: translateY(0.4em); }
h1.ready .l { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .rv, h1 .l { opacity: 1 !important; transform: none !important; transition: none !important; }
  body::after, #keeper-toggle .dot { animation: none !important; }
  .entry.stamped .stamp, .stamped .stamp { animation: none; opacity: 0.9; }
}