/* ============================================================
   SantriOnline — Scroll Story Prototype
   Vanilla CSS. No framework, no build step.
   ============================================================ */

:root{
  --ink:        #07130f;
  --ink-2:      #0c1f18;
  --paper:      #f4efe3;
  --paper-dim:  #cfc7b6;
  --emerald:    #1f9e6e;
  --emerald-lo: #147953;
  --gold:       #d9a441;
  --gold-lo:    #a87a26;
  --line:       rgba(244,239,227,.14);
  --card-bg:    rgba(10,28,22,.72);
  --r:          18px;
  --ease:       cubic-bezier(.22,1,.36,1);
  --sans:       'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --serif-ar:   'Amiri', 'Traditional Arabic', serif;
}

*,*::before,*::after{ box-sizing:border-box; }

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  font-family:var(--sans);
  color:var(--paper);
  background:var(--ink);
  overflow-x:hidden;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

/* ---------- canvas backdrop ---------- */
.scene{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:0;
  pointer-events:none;
  display:block;
}

/* subtle vignette above canvas */
body::after{
  content:'';
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:radial-gradient(ellipse 90% 70% at 50% 45%, transparent 30%, rgba(3,9,7,.72) 100%);
}

main{ position:relative; z-index:2; }

/* ============================================================
   HUD
   ============================================================ */
.hud{
  position:fixed;
  top:0; left:0; right:0;
  z-index:40;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px clamp(14px,4vw,34px);
  background:linear-gradient(to bottom, rgba(7,19,15,.92), rgba(7,19,15,0));
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.hud__brand{ display:flex; align-items:center; gap:9px; }
.hud__logo{
  font-size:20px;
  color:var(--gold);
  line-height:1;
}
.hud__name{
  font-weight:800;
  font-size:15px;
  letter-spacing:.2px;
}
.hud__stats{ display:flex; gap:8px; }

.stat{
  display:flex;
  align-items:center;
  gap:6px;
  padding:6px 11px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(10,28,22,.6);
  font-size:12px;
  white-space:nowrap;
}
.stat__ico{ color:var(--gold); font-size:11px; }
.stat__val{
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:var(--paper);
}
.stat__of{ opacity:.5; font-weight:600; }
.stat__lbl{ opacity:.55; font-size:11px; }

/* ============================================================
   PROGRESS RAIL
   ============================================================ */
.rail{
  position:fixed;
  right:clamp(10px,2.4vw,26px);
  top:50%;
  transform:translateY(-50%);
  z-index:35;
  display:flex;
  align-items:center;
  gap:11px;
}
.rail__track{
  position:relative;
  width:2px;
  height:min(46vh,320px);
  background:var(--line);
  border-radius:2px;
  overflow:hidden;
}
.rail__fill{
  position:absolute;
  top:0; left:0; right:0;
  height:0%;
  background:linear-gradient(to bottom, var(--gold), var(--emerald));
  border-radius:2px;
  transition:height .12s linear;
}
.rail__dots{
  list-style:none;
  margin:0; padding:0;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  height:min(46vh,320px);
}
.rail__dot{
  font-size:10px;
  letter-spacing:.5px;
  text-transform:uppercase;
  opacity:.3;
  transition:opacity .35s var(--ease), color .35s var(--ease);
  white-space:nowrap;
}
.rail__dot.is-on{ opacity:1; color:var(--gold); font-weight:700; }
@media (max-width:820px){ .rail{ display:none; } }

/* ============================================================
   SKIP BUTTON
   ============================================================ */
.skip{
  position:fixed;
  left:50%;
  bottom:22px;
  transform:translateX(-50%);
  z-index:40;
  padding:9px 18px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(10,28,22,.75);
  backdrop-filter:blur(6px);
  color:var(--paper);
  font-family:inherit;
  font-size:12px;
  cursor:pointer;
  transition:opacity .4s var(--ease), background .25s, border-color .25s;
}
.skip:hover{ background:rgba(31,158,110,.24); border-color:var(--emerald); }
.skip.is-gone{ opacity:0; pointer-events:none; }

/* ============================================================
   SANTRI CHARACTER
   ============================================================ */
.santri{
  position:fixed;
  z-index:3;
  left:12%;
  bottom:16vh;
  width:clamp(88px,11vw,132px);
  pointer-events:none;
  will-change:transform;
  transition:opacity .6s var(--ease);
}
.santri__glow{
  position:absolute;
  left:50%; top:52%;
  width:190%; height:190%;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(31,158,110,.30), transparent 66%);
  filter:blur(14px);
}
.santri__inner{
  position:relative;
  display:block;
  will-change:transform;
}
.santri__body{
  position:relative;
  width:100%;
  height:auto;
  display:block;
  overflow:visible;
}
.s-shadow{ fill:rgba(0,0,0,.34); }
.s-sarung{ fill:#15503c; }
.s-sarung-line{ stroke:rgba(244,239,227,.18); stroke-width:1.4; fill:none; }
.s-baju{ fill:var(--paper); }
.s-collar{ fill:none; stroke:#c9c0ac; stroke-width:1.6; stroke-linejoin:round; }
.s-arm{ fill:#e8e2d4; }
.s-face{ fill:#f0d3ae; }
.s-peci{ fill:#0f3b2c; }
.s-eye{ fill:#26160c; }
.s-smile{ fill:none; stroke:#26160c; stroke-width:1.5; stroke-linecap:round; }
.s-kitab rect{ fill:var(--gold); }
.s-kitab-line{ stroke:var(--gold-lo); stroke-width:1.4; }

/* jalan: ayun lengan + bob badan */
.santri.is-walking .s-arm--l{ animation:swingL .62s ease-in-out infinite alternate; transform-origin:36px 50px; }
.santri.is-walking .s-arm--r{ animation:swingR .62s ease-in-out infinite alternate; transform-origin:64px 50px; }
.santri.is-walking .santri__inner{ animation:bob .62s ease-in-out infinite alternate; }
@keyframes swingL{ from{ transform:rotate(-13deg);} to{ transform:rotate(15deg);} }
@keyframes swingR{ from{ transform:rotate(15deg);}  to{ transform:rotate(-13deg);} }
@keyframes bob{ from{ transform:translateY(0);} to{ transform:translateY(-4px);} }

@media (max-width:820px){
  .santri{
    left:auto;
    right:8px;
    bottom:6px;
    width:56px;
    opacity:.45;
    z-index:2;          /* di bawah kartu (.card z-index:5) */
  }
}

/* ============================================================
   CHAPTERS
   ============================================================ */
.chapter{
  min-height:100svh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:clamp(96px,15vh,150px) clamp(18px,6vw,80px) clamp(84px,12vh,120px);
  position:relative;
}

.eyebrow{
  margin:0 0 12px;
  font-size:11px;
  letter-spacing:2.2px;
  text-transform:uppercase;
  color:var(--gold);
  font-weight:700;
}

/* ---------- hero ---------- */
.chapter--hero{ text-align:center; flex-direction:column; }
.hero__stamp{
  position:absolute;
  top:clamp(74px,11vh,104px);
  left:50%;
  transform:translateX(-50%) rotate(-2.2deg);
  padding:6px 16px;
  border:1px dashed var(--gold-lo);
  border-radius:5px;
  font-size:10px;
  letter-spacing:2.6px;
  color:var(--gold);
  opacity:.62;
  white-space:nowrap;
}
.hero__inner{ max-width:660px; }
.hero__title{
  margin:0 0 20px;
  font-size:clamp(2.5rem,8.5vw,5.1rem);
  line-height:1.02;
  font-weight:800;
  letter-spacing:-2px;
}
.hero__title-em{
  background:linear-gradient(96deg,var(--gold),var(--emerald));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero__sub{
  margin:0 auto 34px;
  max-width:500px;
  font-size:clamp(.98rem,2.1vw,1.13rem);
  opacity:.76;
}
.hero__cue{
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:1.4px;
  text-transform:uppercase;
  opacity:.6;
}
.hero__arrow{ animation:cue 1.7s ease-in-out infinite; font-size:17px; }
@keyframes cue{ 0%,100%{ transform:translateY(0); opacity:.4;} 50%{ transform:translateY(9px); opacity:1;} }

.hero__arabic{
  position:absolute;
  bottom:11vh;
  left:50%;
  transform:translateX(-50%);
  font-family:var(--serif-ar);
  font-size:clamp(1.5rem,5vw,2.6rem);
  color:var(--emerald);
  opacity:.12;
  white-space:nowrap;
  pointer-events:none;
}

/* ---------- cards ---------- */
.card{
  position:relative;
  z-index:5;
  width:min(600px,100%);
  padding:clamp(24px,4.4vw,42px);
  border:1px solid var(--line);
  border-radius:var(--r);
  background:var(--card-bg);
  backdrop-filter:blur(15px);
  -webkit-backdrop-filter:blur(15px);
  box-shadow:0 24px 70px rgba(0,0,0,.46);

  opacity:0;
  transform:translateY(46px) scale(.975);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
.card.is-in{ opacity:1; transform:none; }

.card h2{
  margin:0 0 14px;
  font-size:clamp(1.6rem,4.4vw,2.4rem);
  line-height:1.16;
  font-weight:800;
  letter-spacing:-.7px;
}
.card h2 em{
  font-style:normal;
  background:linear-gradient(96deg,var(--gold),var(--emerald));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.card p{ margin:0 0 18px; opacity:.78; font-size:clamp(.94rem,1.9vw,1.02rem); }

/* ---------- quote ---------- */
.quote{
  margin:0 0 20px;
  padding:18px 20px;
  border-left:3px solid var(--gold);
  border-radius:0 12px 12px 0;
  background:rgba(217,164,65,.07);
  display:flex;
  flex-direction:column;
  gap:7px;
}
.quote__ar{
  font-family:var(--serif-ar);
  font-size:clamp(1.25rem,3.6vw,1.7rem);
  direction:rtl;
  color:var(--gold);
  line-height:1.85;
}
.quote__id{ font-size:.95rem; opacity:.86; font-style:italic; }
.quote cite{ font-size:11px; opacity:.5; font-style:normal; letter-spacing:.4px; }

/* ---------- badge ---------- */
.badge{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:6px;
  padding:11px 15px;
  border:1px solid rgba(217,164,65,.3);
  border-radius:12px;
  background:rgba(217,164,65,.09);
  font-size:13px;
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s var(--ease) .35s, transform .5s var(--ease) .35s;
}
.badge.is-on{ opacity:1; transform:none; }
.badge__ico{ color:var(--gold); font-size:15px; }
.badge strong{ color:var(--gold); }

/* ---------- habits ---------- */
.habits{ list-style:none; margin:0 0 20px; padding:0; display:grid; gap:10px; }
.habits li{
  display:flex;
  align-items:center;
  gap:11px;
  padding:11px 14px;
  border:1px solid var(--line);
  border-radius:11px;
  background:rgba(255,255,255,.03);
  font-size:.94rem;
  opacity:0;
  transform:translateX(-16px);
  transition:opacity .5s var(--ease), transform .5s var(--ease), border-color .3s;
}
.habits li.is-on{ opacity:1; transform:none; }
.habits li.is-done{ border-color:rgba(31,158,110,.45); }
.habits__box{
  flex:0 0 auto;
  width:19px; height:19px;
  border:2px solid var(--emerald);
  border-radius:5px;
  position:relative;
  transition:background .3s var(--ease);
}
.habits li.is-done .habits__box{ background:var(--emerald); }
.habits__box::after{
  content:'✓';
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-size:12px;
  font-weight:800;
  color:var(--ink);
  opacity:0;
  transform:scale(.4);
  transition:opacity .25s var(--ease), transform .25s var(--ease);
}
.habits li.is-done .habits__box::after{ opacity:1; transform:none; }

/* ---------- shelf ---------- */
.shelf{
  display:flex;
  align-items:flex-end;
  justify-content:center;
  gap:9px;
  height:132px;
  margin:0 0 20px;
  padding-bottom:9px;
  border-bottom:2px solid var(--gold-lo);
}
.shelf__book{
  flex:1;
  max-width:62px;
  height:0;
  border-radius:5px 5px 0 0;
  background:linear-gradient(to top,var(--emerald-lo),var(--emerald));
  display:flex;
  align-items:flex-end;
  justify-content:center;
  padding-bottom:9px;
  transition:height .8s var(--ease);
  box-shadow:inset -3px 0 0 rgba(0,0,0,.2);
}
.shelf__book:nth-child(even){ background:linear-gradient(to top,var(--gold-lo),var(--gold)); }
.shelf.is-on .shelf__book{ height:var(--h); }
.shelf__book span{
  font-size:10px;
  font-weight:800;
  letter-spacing:.4px;
  color:var(--ink);
  writing-mode:vertical-rl;
  text-orientation:mixed;
  transform:rotate(180deg);
  white-space:nowrap;
}

/* ---------- skills ---------- */
.skills{ display:grid; gap:14px; margin:0 0 20px; }
.skills__row span{ display:block; font-size:.88rem; margin-bottom:6px; opacity:.82; }
.skills__bar{
  height:7px;
  border-radius:99px;
  background:rgba(255,255,255,.08);
  overflow:hidden;
}
.skills__bar i{
  display:block;
  height:100%;
  width:0;
  border-radius:99px;
  background:linear-gradient(90deg,var(--emerald),var(--gold));
  transition:width 1.1s var(--ease);
}

/* ---------- orbit ---------- */
.orbit{
  position:relative;
  height:250px;
  margin:0 0 20px;
  display:grid;
  place-items:center;
}
.orbit__core{
  width:82px; height:82px;
  border-radius:50%;
  display:grid;
  place-items:center;
  font-weight:800;
  font-size:13px;
  color:var(--ink);
  background:linear-gradient(140deg,var(--gold),var(--emerald));
  box-shadow:0 0 40px rgba(31,158,110,.42);
  z-index:2;
}
.orbit__node{
  position:absolute;
  padding:6px 13px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(10,28,22,.9);
  font-size:11.5px;
  white-space:nowrap;
  transform:rotate(var(--a)) translateX(0) rotate(calc(var(--a) * -1)) scale(.6);
  opacity:0;
  transition:transform .85s var(--ease), opacity .6s var(--ease);
}
.orbit.is-on .orbit__node{
  opacity:1;
  transform:rotate(var(--a)) translateX(103px) rotate(calc(var(--a) * -1)) scale(1);
}
.orbit.is-on .orbit__node:nth-child(3){ transition-delay:.09s; }
.orbit.is-on .orbit__node:nth-child(4){ transition-delay:.18s; }
.orbit.is-on .orbit__node:nth-child(5){ transition-delay:.27s; }
.orbit.is-on .orbit__node:nth-child(6){ transition-delay:.36s; }

/* ---------- ending ---------- */
.chapter--end{ text-align:center; }
.card--end{ text-align:center; }
.score{
  margin:22px 0;
  padding:20px;
  border:1px solid rgba(217,164,65,.3);
  border-radius:14px;
  background:rgba(217,164,65,.07);
}
.score__lbl{ display:block; font-size:11px; letter-spacing:2px; text-transform:uppercase; opacity:.6; margin-bottom:6px; }
.score__val{
  display:block;
  font-size:clamp(2.6rem,9vw,3.9rem);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  line-height:1;
  background:linear-gradient(96deg,var(--gold),var(--emerald));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cta{
  display:inline-block;
  padding:14px 30px;
  border-radius:999px;
  background:linear-gradient(96deg,var(--gold),var(--emerald));
  color:var(--ink);
  font-weight:800;
  font-size:.97rem;
  text-decoration:none;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.cta:hover{ transform:translateY(-2px); box-shadow:0 12px 34px rgba(31,158,110,.36); }
.fineprint{ margin-top:16px !important; font-size:11px; opacity:.4 !important; }

/* ---------- footer ---------- */
.foot{
  position:relative;
  z-index:2;
  padding:34px 20px 46px;
  text-align:center;
  border-top:1px solid var(--line);
}
.foot p{ margin:0; font-size:11.5px; opacity:.42; }

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .card,.habits li,.badge{ opacity:1 !important; transform:none !important; }
  .shelf__book{ height:var(--h) !important; }
  .orbit__node{ opacity:1 !important; }
}