/* ============================================================
   The Pledge Tree — Landing Page
   Ultra-modern · minimalist · editorial
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#060606;
  --bg-subtle:#0e0e0e;
  --text:#f0f0f0;
  --text-secondary:#a0a0a0;
  --text-dim:#555;
  --accent:#3fa85a;
  --rule:rgba(255,255,255,.06);
  --font-body:'Space Grotesk',system-ui,sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
  --gutter:clamp(24px,5vw,80px);
  --ease-out:cubic-bezier(0.16,1,0.3,1);
  --ease-in-out:cubic-bezier(0.65,0,0.35,1);
}

html{
  scroll-behavior:smooth;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  /* clip horizontal overflow at the root so <body> stays in normal document
     flow (not its own scroll container) — keeps the window scroll model intact */
  overflow-x:hidden;
}

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  font-size:15px;
  line-height:1.6;
}

::selection{
  background:rgba(63,168,90,.2);
  color:var(--text);
}

/* ---- NAV ---- */

.nav{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:24px var(--gutter);
  mix-blend-mode:difference;
  transition:background-color .4s var(--ease-out),backdrop-filter .4s var(--ease-out),padding .3s var(--ease-out),border-color .4s var(--ease-out);
  border-bottom:1px solid transparent;
}

/* Once scrolled past the hero, become a solid bar so page content no longer
   collides with the nav (and drop the difference blend for clean legibility). */
.nav.is-scrolled{
  mix-blend-mode:normal;
  background:rgba(6,6,6,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rule);
  padding:16px var(--gutter);
}

.nav-wordmark{
  font-size:14px;
  font-weight:500;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text);
  text-decoration:none;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:36px;
}

.nav-links a{
  font-size:12px;
  font-weight:400;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text-secondary);
  text-decoration:none;
  transition:color .4s var(--ease-out);
}

.nav-links a:hover{
  color:var(--text);
}

.nav-admin{
  border:1px solid rgba(255,255,255,.2);
  padding:7px 20px;
  transition:border-color .4s var(--ease-out),color .4s var(--ease-out);
}

.nav-admin:hover{
  border-color:var(--text);
  color:var(--text)!important;
}

/* ---- HERO ---- */

.hero{
  position:relative;
  width:100%;
  height:100vh;
  min-height:600px;
  overflow:hidden;
  background:var(--bg);
}

#hero-canvas{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  display:block;
  z-index:2;
}

.hero-fallback{
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse at 50% 55%,#080f0a 0%,var(--bg) 70%);
  z-index:1;
  pointer-events:none;
}

/* Hero text overlay */

.hero-overlay{
  position:absolute;
  bottom:0;left:0;
  z-index:10;
  padding:0 var(--gutter) clamp(56px,10vh,120px);
  max-width:760px;
  pointer-events:none;
}

.hero-overlay>*{pointer-events:auto}

.hero-eyebrow{
  display:flex;
  align-items:center;
  gap:16px;
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--text-dim);
  margin-bottom:24px;
  opacity:0;
  transform:translateY(12px);
  animation:hero-fade-in .8s var(--ease-out) .6s forwards;
}

.hero-eyebrow-line{
  display:block;
  width:24px;
  height:1px;
  background:var(--accent);
}

.hero-title{
  font-size:clamp(48px,8.5vw,100px);
  font-weight:300;
  line-height:1.0;
  letter-spacing:-.03em;
  margin-bottom:32px;
  color:var(--text);
}

.hero-title-line{
  display:block;
  overflow:hidden;
}

.hero-title-line:nth-child(1){
  opacity:0;
  transform:translateY(20px);
  animation:hero-fade-in .9s var(--ease-out) .2s forwards;
}

.hero-title-line:nth-child(2){
  opacity:0;
  transform:translateY(20px);
  animation:hero-fade-in .9s var(--ease-out) .35s forwards;
}

.hero-tagline{
  font-size:clamp(14px,1.3vw,16px);
  font-weight:400;
  color:var(--text-dim);
  line-height:1.75;
  margin-bottom:48px;
  max-width:400px;
  opacity:0;
  transform:translateY(12px);
  animation:hero-fade-in .8s var(--ease-out) .8s forwards;
}

.hero-cta{
  display:inline-flex;
  align-items:center;
  gap:14px;
  font-size:11px;
  font-weight:500;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--text-secondary);
  text-decoration:none;
  transition:color .4s var(--ease-out),gap .5s var(--ease-out);
  opacity:0;
  transform:translateY(12px);
  animation:hero-fade-in .8s var(--ease-out) 1s forwards;
}

.hero-cta:hover{
  color:var(--text);
  gap:20px;
}

.cta-line{
  display:block;
  width:32px;
  height:1px;
  background:var(--accent);
  transition:width .5s var(--ease-out);
}

.hero-cta:hover .cta-line{
  width:48px;
}

/* Scroll indicator */

.hero-scroll{
  position:absolute;
  bottom:clamp(32px,5vh,56px);
  right:var(--gutter);
  z-index:10;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  pointer-events:none;
  opacity:0;
  animation:hero-fade-in .8s var(--ease-out) 1.4s forwards;
}

.hero-scroll-text{
  font-size:9px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--text-dim);
  writing-mode:vertical-rl;
}

.hero-scroll-line{
  width:1px;
  height:40px;
  background:linear-gradient(to bottom,var(--text-dim),transparent);
  animation:scroll-pulse 2s var(--ease-in-out) infinite;
}

@keyframes hero-fade-in{
  to{opacity:1;transform:translateY(0)}
}

@keyframes scroll-pulse{
  0%,100%{opacity:.4;transform:scaleY(1)}
  50%{opacity:1;transform:scaleY(.6)}
}

/* Data overlay */

.hero-data{
  position:absolute;
  top:88px;right:var(--gutter);
  z-index:10;
  font-family:var(--font-mono);
  font-size:9px;
  color:rgba(63,168,90,.4);
  line-height:2.2;
  pointer-events:none;
  text-align:right;
  letter-spacing:.05em;
  opacity:0;
  animation:hero-fade-in .8s var(--ease-out) 1.2s forwards;
}

.data-line{
  display:flex;
  justify-content:flex-end;
  gap:16px;
}

.data-label{
  color:rgba(255,255,255,.15);
}

.data-val{
  min-width:72px;
  text-align:right;
  font-variant-numeric:tabular-nums;
}

/* ---- HERO ATMOSPHERIC OVERLAYS ---- */

.hero-grain,
.hero-vignette,
.hero-scanlines{
  position:absolute;
  inset:0;
  pointer-events:none;
}

.hero-grain{
  z-index:5;
  mix-blend-mode:overlay;
  opacity:0.03;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size:200px 200px;
  animation:grain-flicker 0.5s steps(6) infinite;
}

@keyframes grain-flicker{
  0%,100%{transform:translate(0,0)}
  16%{transform:translate(-2px,1px)}
  33%{transform:translate(1px,-2px)}
  50%{transform:translate(-1px,2px)}
  66%{transform:translate(2px,-1px)}
  83%{transform:translate(-2px,-1px)}
}

.hero-vignette{
  z-index:6;
  background:radial-gradient(ellipse at 50% 50%,transparent 35%,rgba(0,0,0,0.75) 100%);
}

.hero-scanlines{
  z-index:7;
  opacity:0.025;
  background:repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    rgba(255,255,255,0.06) 2px,
    rgba(255,255,255,0.06) 4px
  );
}

/* ---- SCROLL REVEAL ---- */

.reveal{
  opacity:0;
  transform:translateY(40px);
  transition:opacity .9s var(--ease-out),transform .9s var(--ease-out);
}

.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}

.reveal-child{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .7s var(--ease-out),transform .7s var(--ease-out);
}

.reveal.is-visible .reveal-child:nth-child(1){transition-delay:.1s;opacity:1;transform:translateY(0)}
.reveal.is-visible .reveal-child:nth-child(2){transition-delay:.2s;opacity:1;transform:translateY(0)}
.reveal.is-visible .reveal-child:nth-child(3){transition-delay:.3s;opacity:1;transform:translateY(0)}
.reveal.is-visible .reveal-child:nth-child(4){transition-delay:.4s;opacity:1;transform:translateY(0)}
.reveal.is-visible .reveal-child:nth-child(5){transition-delay:.5s;opacity:1;transform:translateY(0)}

/* ---- CONTENT SECTIONS ---- */

.content-section{
  max-width:1080px;
  margin:0 auto;
  padding:clamp(100px,14vh,180px) var(--gutter);
}

/* Section label — small left-aligned marker */

.section-label{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:clamp(48px,7vh,80px);
}

.section-num{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:.1em;
  color:var(--accent);
}

.section-label-text{
  font-size:10px;
  font-weight:400;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--text-dim);
}

/* Two-column layout */

.section-grid{
  display:grid;
  grid-template-columns:1fr 1.2fr;
  gap:clamp(40px,6vw,100px);
  align-items:start;
}

/* Left-aligned single-column layout */

.content-section--left{
  max-width:640px;
  margin-left:var(--gutter);
  margin-right:auto;
}

.content-section--left .section-title{
  margin-bottom:clamp(24px,4vh,40px);
}

.section-title{
  font-size:clamp(28px,3.5vw,42px);
  font-weight:300;
  line-height:1.15;
  letter-spacing:-.02em;
  color:var(--text);
}

.section-title--full{
  margin-bottom:clamp(40px,6vh,64px);
}

.section-body p{
  color:var(--text-secondary);
  margin-bottom:24px;
  font-size:15px;
  line-height:1.85;
  font-weight:400;
}

.section-body p:last-child{
  margin-bottom:0;
}

/* Section CTA */

.section-cta{
  display:inline-flex;
  align-items:center;
  gap:14px;
  margin-top:40px;
  font-size:11px;
  font-weight:500;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--text-secondary);
  text-decoration:none;
  transition:color .4s var(--ease-out),gap .5s var(--ease-out);
}

.section-cta:hover{
  color:var(--text);
  gap:20px;
}

.section-cta .cta-line{
  display:block;
  width:32px;
  height:1px;
  background:var(--accent);
  transition:width .5s var(--ease-out);
}

.section-cta:hover .cta-line{
  width:48px;
}

/* ---- FOOTER ---- */

.footer{
  border-top:1px solid var(--rule);
  padding:clamp(48px,7vh,80px) var(--gutter);
}

.footer-inner{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  flex-wrap:wrap;
  gap:32px;
}

.footer-col{
  display:flex;
  flex-direction:column;
  gap:6px;
  font-size:14px;
  font-weight:400;
}

.footer-col--end{
  margin-left:auto;
}

.footer-label{
  font-size:9px;
  font-weight:500;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--text-dim);
}

.footer-artist{
  display:inline-flex;
  align-items:center;
  gap:14px;
}

.footer-socials{
  display:inline-flex;
  align-items:center;
  gap:12px;
}

.footer-social{
  display:inline-flex;
  color:var(--text-dim);
  transition:color .3s var(--ease-out),transform .3s var(--ease-out);
}

.footer-social:hover{
  color:var(--accent);
  transform:translateY(-1px);
}

.footer-social svg{
  width:16px;
  height:16px;
  display:block;
}

.footer-copy{
  font-size:12px;
  color:var(--text-dim);
}

/* ---- RESPONSIVE ---- */

@media(max-width:768px){
  .nav{
    padding:18px 20px;
    mix-blend-mode:normal;
    background:linear-gradient(to bottom,rgba(6,6,6,.95) 0%,transparent 100%);
  }

  .nav-links{
    gap:16px;
  }

  .hero-overlay{
    padding:0 24px 48px;
  }

  .hero-data,
  .hero-scroll{
    display:none;
  }

  .content-section{
    padding:72px 24px;
  }

  .content-section--left{
    margin-left:auto;
  }

  .footer-inner{
    flex-direction:column;
    align-items:flex-start;
    gap:24px;
  }

  .footer-col--end{
    margin-left:0;
  }
}

@media(max-width:480px){
  .hero-title{
    font-size:42px;
  }

  .hero-tagline{
    font-size:13px;
  }

  .nav-wordmark{
    font-size:12px;
  }

  .nav-links{
    gap:14px;
  }

  .nav-links a{
    font-size:10px;
  }

  .nav-admin{
    padding:5px 14px;
  }
}

/* ---- ADMIN ACCESS MODAL ---- */

.admin-modal{
  position:fixed;
  inset:0;
  z-index:1000;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  opacity:0;
  visibility:hidden;
  transition:opacity .4s var(--ease-out),visibility .4s var(--ease-out);
}

.admin-modal.is-open{
  opacity:1;
  visibility:visible;
}

.admin-modal-backdrop{
  position:absolute;
  inset:0;
  background:rgba(3,3,3,.72);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}

.admin-modal-panel{
  position:relative;
  width:100%;
  max-width:400px;
  padding:44px 40px 40px;
  background:var(--bg-subtle);
  border:1px solid var(--rule);
  transform:translateY(16px) scale(.98);
  transition:transform .5s var(--ease-out);
}

.admin-modal.is-open .admin-modal-panel{
  transform:translateY(0) scale(1);
}

.admin-modal-close{
  position:absolute;
  top:14px;
  right:16px;
  width:32px;
  height:32px;
  background:none;
  border:none;
  color:var(--text-dim);
  font-size:24px;
  line-height:1;
  cursor:pointer;
  transition:color .3s var(--ease-out);
}

.admin-modal-close:hover{
  color:var(--text);
}

.admin-modal-eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:500;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:14px;
}

.admin-modal-title{
  font-size:26px;
  font-weight:500;
  letter-spacing:-.01em;
  color:var(--text);
  margin-bottom:28px;
}

.admin-modal-form{
  display:flex;
  flex-direction:column;
  gap:20px;
}

.admin-modal-input{
  width:100%;
  padding:14px 16px;
  background:var(--bg);
  border:1px solid rgba(255,255,255,.14);
  color:var(--text);
  font-family:var(--font-mono);
  font-size:14px;
  letter-spacing:.04em;
  transition:border-color .3s var(--ease-out);
}

.admin-modal-input::placeholder{
  color:var(--text-dim);
}

.admin-modal-input:focus{
  outline:none;
  border-color:var(--accent);
}

.admin-modal-error{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.04em;
  color:#e0554e;
  min-height:14px;
  margin-top:-8px;
}

.admin-modal-cta{
  display:inline-flex;
  align-items:center;
  gap:14px;
  align-self:flex-start;
  padding:0;
  background:none;
  border:none;
  cursor:pointer;
  font-family:var(--font-body);
  font-size:11px;
  font-weight:500;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--text-secondary);
  transition:color .4s var(--ease-out),gap .5s var(--ease-out);
}

.admin-modal-cta:hover{
  color:var(--text);
  gap:20px;
}

.admin-modal-cta:hover .cta-line{
  width:48px;
}

