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

:root{
  --bg:#080910;
  --bg2:#0c0d16;
  --surface:#111220;
  --surface2:#161728;
  --border:rgba(255,255,255,0.06);
  --border-hi:rgba(255,255,255,0.11);
  --text:#eeeef0;
  --text-mid:#888899;
  --text-dim:#40404d;
  --accent:#818cf8;
  --accent2:#a5b4fc;
  --accent-glow:rgba(129,140,248,0.15);
  --green:#34d399;
  --amber:#fbbf24;
  --r:rgba(129,140,248,1);
}

/* ─── CUSTOM CURSORS ─── */

/* Default cursor — used everywhere */
* {
  cursor: url('cursors/darkcursors/dark-theme-cursor.png') 0 0, auto;
}

/* Pointer — links, buttons, anything clickable */
a,
button,
[role="button"],
.btn-nav,
.btn-hero,
.btn-hero-outline,
.demo-send,
.dq,
.dq-menu-item,
.demo-practice-btn,
.demo-test-opt,
.mockup-btn,
.mockup-tab,
.faq-q,
.feat,
label,
select,
input[type="submit"],
input[type="button"],
input[type="checkbox"],
input[type="radio"] {
  cursor: url('cursors/darkcursors/dark-theme-pointer.png') 12 0, pointer !important;
}
/* Text cursor — inputs and text areas */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea,
.demo-input,
[contenteditable] {
  cursor: url('cursors/darkcursors/dark-theme-text-cursor.png') 12 14, text;
}
html{scroll-behavior:smooth;color-scheme:dark}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'DM Mono',monospace;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* ─── PARTICLE CANVAS ─── */
#particles{position:fixed;inset:0;z-index:0;pointer-events:none}

/* ─── NAV ─── */
nav{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 52px;height:58px;
  background:rgba(8,9,16,0.7);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  transition:border-color .3s;
}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;padding:12px 8px;}
.nav-logo svg{width:26px;height:26px}
.nav-wordmark{
  font-family:'Fraunces',serif;font-style:italic;font-weight:400;
  font-size:20px;color:var(--text);letter-spacing:.2px;
}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{
  color:var(--text-mid);text-decoration:none;font-size:11.5px;
  letter-spacing:.05em;transition:color .2s;
}
.nav-links a:hover{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:10px}
.btn-nav{
  padding:8px 20px;border-radius:8px;font-family:'DM Mono',monospace;
  font-size:11px;letter-spacing:.06em;cursor:pointer;transition:all .2s;
  text-decoration:none;display:inline-flex;align-items:center;gap:6px;
}
.btn-nav.ghost{border:1px solid var(--border-hi);background:transparent;color:var(--text-mid)}
.btn-nav.ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-nav.filled{background:var(--accent);border:none;color:#08090f;font-weight:500}
.btn-nav.filled:hover{background:var(--accent2);box-shadow:0 0 24px rgba(129,140,248,.4);transform:translateY(-1px)}

/* ─── HERO ─── */
.hero{
  position:relative;z-index:1;
  min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  padding:100px 48px 60px;text-align:center;
  max-width:1080px;margin-left:auto;margin-right:auto;
  overflow:hidden;
}
.hero-glow{
  position:absolute;top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:800px;height:800px;
  background:radial-gradient(ellipse at center, rgba(129,140,248,.07) 0%, transparent 65%);
  pointer-events:none;animation:breathe 6s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.6;transform:translate(-50%,-50%) scale(1)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.08)}}

.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px 5px 6px;
  border:1px solid rgba(129,140,248,.25);border-radius:100px;
  background:rgba(129,140,248,.07);
  font-size:11px;color:var(--accent2);letter-spacing:.04em;

  margin-bottom:28px;position:relative;z-index:1;
  animation:fadeUp .7s ease both;
}
.badge-pill{
  background:var(--accent);color:#08090f;font-size:9px;font-weight:500;
  padding:2px 8px;border-radius:100px;letter-spacing:.08em;
}
.hero-h1{
  font-family:'Fraunces',serif;font-weight:400;
  font-size:clamp(58px,7.5vw,104px);line-height:1.0;
  letter-spacing:-.03em;color:var(--text);
  position:relative;z-index:1;max-width:1080px;
  animation:fadeUp .7s .1s ease both;
}
.hero-h1 em{font-style:italic;color:var(--accent2)}
.hero-sub{
  font-size:15px;color:var(--text-mid);line-height:1.75;
  max-width:500px;margin:22px auto 0;
  position:relative;z-index:1;
  animation:fadeUp .7s .2s ease both;
}
.hero-actions{
  display:flex;align-items:center;gap:12px;
  margin-top:36px;position:relative;z-index:1;
  animation:fadeUp .7s .3s ease both;
}
.btn-hero{
  padding:14px 34px;background:var(--accent);color:#08090f;
  font-family:'DM Mono',monospace;font-size:12px;font-weight:500;
  letter-spacing:.06em;border:none;border-radius:10px;
  cursor:pointer;transition:all .25s;text-decoration:none;
  display:inline-flex;align-items:center;gap:8px;
  white-space:nowrap;
}
.btn-hero:hover{background:var(--accent2);transform:translateY(-2px);box-shadow:0 16px 40px rgba(129,140,248,.35)}
.btn-hero-outline{
  padding:14px 28px;border:1px solid var(--border-hi);background:transparent;
  color:var(--text-mid);font-family:'DM Mono',monospace;font-size:12px;
  letter-spacing:.06em;border-radius:10px;cursor:pointer;transition:all .2s;
  text-decoration:none;white-space:nowrap;
}
.btn-hero-outline:hover{border-color:var(--accent);color:var(--text)}
.hero-free{
  font-size:11px;color:var(--text-dim);margin-top:14px;
  position:relative;z-index:1;letter-spacing:.04em;
  animation:fadeUp .7s .4s ease both;
}
.hero-free span{color:var(--green)}

@keyframes fadeUp{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}

/* hero mockup */
.hero-mockup{
  position:relative;z-index:1;margin-top:64px;width:100%;max-width:1080px;
  animation:fadeUp .9s .55s ease both;
}
.mockup-shell{
  background:var(--surface);border:1px solid var(--border-hi);
  border-radius:18px;overflow:hidden;
  box-shadow:0 0 0 1px rgba(255,255,255,0.03),0 40px 100px rgba(0,0,0,.7),0 0 80px rgba(129,140,248,.04);
}
.mockup-bar{
  display:flex;align-items:center;gap:6px;
  padding:13px 18px;border-bottom:1px solid var(--border);
  background:rgba(12,13,22,.8);
}
.mbar-dot{width:10px;height:10px;border-radius:50%}
.mbar-title{font-size:13px;color:var(--text-dim);margin-left:8px;letter-spacing:.06em}
.mbar-live{
  margin-left:auto;display:flex;align-items:center;gap:5px;
  font-size:11px;color:var(--accent2);letter-spacing:.08em;
  background:rgba(129,140,248,.1);border:1px solid rgba(129,140,248,.2);
  border-radius:4px;padding:3px 10px;
}
.mbar-live-dot{width:5px;height:5px;border-radius:50%;background:var(--accent);animation:blink 1.5s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}

.mockup-subjectbar{
  display:flex;align-items:center;gap:8px;
  padding:6px 18px;margin-left:auto;
  background:transparent;
}
.mbar-subject-pill{
  display:flex;align-items:center;gap:5px;
  background:rgba(129,140,248,.12);border:1px solid rgba(129,140,248,.3);
  border-radius:20px;padding:3px 10px;
  font-family:'DM Mono',monospace;font-size:10.5px;font-weight:500;
  color:#818cf8;letter-spacing:.08em;
}
.mbar-subject-select{
  display:flex;align-items:center;gap:6px;
  background:var(--surface2);border:1px solid var(--border-hi);
  border-radius:6px;padding:4px 10px;
  font-family:'DM Mono',monospace;font-size:10.5px;letter-spacing:.06em;color:var(--text-mid);
  cursor:pointer;
}
.mbar-settings{color:var(--text-dim);cursor:pointer;opacity:.6;}

.mockup-body{display:grid;grid-template-columns:310px 1fr;height:500px}
.mockup-left{border-right:1px solid var(--border);background:rgba(8,9,16,.6);overflow-y:auto}
.mockup-cam{
  margin:8px 12px 12px;border-radius:8px;aspect-ratio:16/9;
  background:#050508;border:1px solid var(--border);
  position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;
}
.mockup-cam-eq{
  font-family:'Fraunces',serif;font-size:26px;
  color:rgba(255,255,255,.18);letter-spacing:3px;
}
.mockup-scan{
  position:absolute;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  animation:scanline 2.8s ease-in-out infinite;
}
@keyframes scanline{0%{top:0;opacity:1}80%{top:100%;opacity:.8}100%{top:100%;opacity:0}}

.mockup-cam-badge{
  position:absolute;top:7px;left:7px;
  background:rgba(129,140,248,.15);border:1px solid rgba(129,140,248,.3);
  border-radius:4px;padding:3px 9px;font-size:11px;color:var(--accent2);
  display:flex;align-items:center;gap:4px;letter-spacing:.07em;
}
.mockup-btns{padding:0 12px 10px;display:flex;gap:8px}
.mockup-btn{
  flex:1;padding:9px;border-radius:6px;border:1px solid var(--border);
  background:var(--surface2);color:var(--text-mid);
  font-family:'DM Mono',monospace;font-size:11.5px;cursor:pointer;letter-spacing:.05em;
}
.mockup-btn.primary{background:var(--accent);color:#08090f;border-color:var(--accent);font-weight:500}
.mockup-btn.active-outline{border-color:var(--accent);color:var(--accent2)}

/* mockup tabs */
/* tab row — mirrors body grid so tabs align with left panel */
.mockup-tabrow{
  display:grid;grid-template-columns:310px 1fr;
  border-bottom:1px solid var(--border);
  background:rgba(8,9,16,.7);
}
.mockup-tabrow-right{border-left:1px solid var(--border)}
.mockup-tabsubjectbar{display:flex;align-items:center;border-bottom:1px solid var(--border);background:rgba(8,9,16,.8)}
.mockup-tabs{display:flex;gap:6px;padding:10px 12px;}
.mockup-tab{flex:none;display:flex;align-items:center;justify-content:center;gap:6px;padding:7px 14px;font-family:'DM Mono',monospace;font-size:12px;color:var(--text-mid);background:var(--surface2);border:1px solid var(--border);border-radius:7px;cursor:pointer;transition:all .2s;letter-spacing:.04em}
.mockup-tab svg{opacity:.6}
.mockup-tab.active{background:rgba(129,140,248,.12);border-color:rgba(129,140,248,.35);color:var(--accent2)}
.mockup-tab.active svg{opacity:1;color:var(--accent2)}

/* mockup panels */
.mockup-panel{display:flex;flex-direction:column;overflow:hidden;height:100%}
.mockup-panel.hidden{display:none}

/* live tutor specific */
.mockup-live-status{display:flex;align-items:center;gap:6px;padding:10px 14px;font-family:'DM Mono',monospace;font-size:12px;color:var(--text-mid)}
.mockup-live-dot-grey{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.2);flex-shrink:0}
.mockup-chats-label{display:flex;align-items:center;gap:6px;padding:10px 14px;font-family:'DM Mono',monospace;font-size:12px;color:var(--text-mid);border-top:1px solid var(--border);margin-top:4px}
.mockup-chats-dropdown{max-height:0;overflow:hidden;transition:max-height .25s ease}
.mockup-chats-dropdown.open{max-height:80px;overflow-y:auto}
.mockup-chat-item{display:flex;align-items:center;gap:7px;padding:6px 16px;font-family:'DM Mono',monospace;font-size:11.5px;color:var(--text-mid);cursor:pointer}
.mockup-chat-item:hover{background:rgba(255,255,255,.04)}
.mockup-subj{
  margin:0 14px 10px;padding:8px 12px;
  background:rgba(129,140,248,.08);border:1px solid rgba(129,140,248,.18);
  border-radius:6px;font-size:11.5px;color:var(--accent2);
  display:flex;align-items:center;gap:6px;letter-spacing:.05em;
}
.mockup-chat{display:flex;flex-direction:column;padding:18px;gap:12px;overflow-y:auto;flex:1}
.msg{max-width:88%;padding:12px 16px;border-radius:10px;font-size:13px;line-height:1.65}
.msg.user{align-self:flex-end;background:var(--surface2);border:1px solid var(--border-hi);color:var(--text-mid)}
.msg.ai{align-self:flex-start;background:var(--surface);border:1px solid var(--border);color:var(--text)}
.msg-name{font-size:10.5px;color:var(--accent2);margin-bottom:4px;letter-spacing:.06em;text-align:left}
.typing-dots{display:flex;gap:4px;padding:10px 14px;background:var(--surface);border:1px solid var(--border);border-radius:10px;align-self:flex-start}
.typing-dots span{width:5px;height:5px;border-radius:50%;background:var(--text-dim);animation:bounce 1.2s ease-in-out infinite}
.typing-dots span:nth-child(2){animation-delay:.2s}
.typing-dots span:nth-child(3){animation-delay:.4s}
@keyframes bounce{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-5px);opacity:1}}

/* ─── TICKER ─── */
.ticker-wrap{
  position:relative;z-index:1;
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  padding:12px 0;overflow:hidden;background:rgba(11,12,20,.9);
}
.t-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.t-item svg {
    color: #6c63ff; /* swap for your brand color */
    flex-shrink: 0;
}

.t-sep {
    margin: 0 16px;
    opacity: 1;
    font-size: 18px;
    color: #40404d;
}
.ticker-wrap::before,.ticker-wrap::after{
  content:'';position:absolute;top:0;bottom:0;width:100px;z-index:2;
}
.ticker-wrap::before{left:0;background:linear-gradient(90deg,rgba(8,9,16,1),transparent)}
.ticker-wrap::after{right:0;background:linear-gradient(-90deg,rgba(8,9,16,1),transparent)}
.ticker-track{display:flex;width:max-content;animation:ticker 30s linear infinite}
@keyframes ticker{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.t-item{
  display:flex;align-items:center;gap:9px;padding:0 26px;
  font-size:11px;color:var(--text-dim);white-space:nowrap;letter-spacing:.05em;
}
.t-dot{width:3px;height:3px;border-radius:50%;background:var(--text-dim);opacity:.3;margin:0 4px}

/* ─── SECTION WRAPPER ─── */
.section{position:relative;z-index:1;max-width:1080px;margin:0 auto;padding:96px 48px}
.sec-kicker{
  font-size:10px;color:var(--accent);letter-spacing:.16em;text-transform:uppercase;
  margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.sec-kicker::before{content:'';width:18px;height:1px;background:var(--accent)}
.sec-title{
  font-family:'Fraunces',serif;font-weight:400;
  font-size:clamp(34px,4vw,54px);line-height:1.08;color:var(--text);
  margin-bottom:14px;
}
.sec-title em{font-style:italic;color:var(--accent2)}
.sec-sub{font-size:13.5px;color:var(--text-mid);line-height:1.72;max-width:460px}

/* ─── NETWORK MAP ─── */
.netmap-section{
  position:relative;z-index:1;
  padding:80px 0 110px;overflow:hidden;
}
.netmap-header{
  max-width:1080px;margin:0 auto;padding:0 48px;
  display:grid;grid-template-columns:1fr 1fr;gap:60px;
  align-items:center;margin-bottom:52px;
}
.netmap-wrap{
  position:relative;width:100%;
  max-width:1080px;margin:0 auto;padding:0 48px;
}
#netCanvas{
  width:100%;display:block;border-radius:18px;
  border:1px solid var(--border);background:rgba(8,9,16,0.6);
}
.netmap-tooltip{
  position:absolute;
  background:var(--surface);border:1px solid var(--border-hi);
  border-radius:10px;padding:13px 16px;
  font-size:12px;color:var(--text-mid);line-height:1.65;
  pointer-events:none;opacity:0;transition:opacity .18s ease;
  max-width:220px;z-index:10;box-shadow:0 8px 32px rgba(0,0,0,0.5);
}
.netmap-tooltip.visible{opacity:1}
.netmap-tooltip-name{
  font-size:10px;letter-spacing:.09em;text-transform:uppercase;
  margin-bottom:5px;display:block;
}

/* ─── INTERACTIVE DEMO ─── */
.demo-outer{
  position:relative;z-index:1;max-width:1080px;
  margin:0 auto;padding:0 48px 100px;
}
.demo-window{
  background:var(--surface);border:1px solid var(--border-hi);
  border-radius:18px;overflow:hidden;
  box-shadow:0 24px 80px rgba(0,0,0,.5);
}
.demo-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 20px;border-bottom:1px solid var(--border);
  background:rgba(12,13,22,.9);
}
.demo-bar-left{display:flex;align-items:center;gap:12px;min-width:0;overflow:hidden}
.demo-bar-dots{display:flex;gap:6px}
.demo-bar-title{font-size:11px;color:var(--text-dim);letter-spacing:.06em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.demo-tag{
  font-size:9px;color:var(--accent2);
  background:rgba(129,140,248,.1);border:1px solid rgba(129,140,248,.2);
  border-radius:4px;padding:2px 8px;letter-spacing:.07em;
  white-space:nowrap;flex-shrink:0;
}
.demo-body{display:grid;grid-template-columns:280px 1fr;min-height:500px}
.demo-left{
  border-right:1px solid var(--border);padding:20px;
  display:flex;flex-direction:column;gap:14px;background:rgba(8,9,16,.4);
}
.demo-left-label{font-size:10px;color:var(--text-dim);letter-spacing:.1em;text-transform:uppercase}
.demo-qs{display:flex;flex-direction:column;gap:7px}
.dq{
  padding:11px 13px;border:1px solid var(--border);border-radius:9px;
  font-size:11.5px;color:var(--text-mid);cursor:pointer;transition:all .2s;line-height:1.4;
}
.dq:hover{border-color:var(--border-hi);color:var(--text);background:rgba(255,255,255,.02)}
.dq.active{
  border-color:rgba(129,140,248,.4);background:rgba(129,140,248,.06);color:var(--text);
}
.dq-subject{
  display:flex;align-items:center;gap:5px;
  font-size:9.5px;letter-spacing:.07em;margin-bottom:5px;
}
.dq-subject-dot{width:6px;height:6px;border-radius:50%}
.dq-title{font-size:11.5px;color:var(--text);font-weight:500;margin-bottom:3px}
.dq-preview{font-size:10px;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dq-row-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:5px;position:relative}
.dq-menu-btn{
  background:none;border:none;color:var(--text-dim);font-size:16px;cursor:pointer;
  padding:0 4px;border-radius:4px;opacity:0;transition:opacity .15s;
  line-height:1;display:flex;align-items:center;flex-shrink:0;
}
.dq:hover .dq-menu-btn,.dq.active .dq-menu-btn{opacity:1}
.dq-menu{
  position:absolute;top:calc(100% + 4px);right:0;z-index:50;
  background:#13141f;border:1px solid rgba(255,255,255,.1);border-radius:10px;
  padding:6px;min-width:170px;
  box-shadow:0 12px 32px rgba(0,0,0,.6);
  display:none;flex-direction:column;gap:1px;
}
.dq-menu.open{display:flex}
.dq-menu-item{
  padding:8px 10px;border-radius:6px;font-family:'DM Mono',monospace;font-size:11px;
  color:var(--text-mid);cursor:pointer;transition:background .15s;white-space:nowrap;
  display:flex;align-items:center;gap:9px;
}
.dq-menu-item:hover{background:rgba(255,255,255,.07);color:var(--text)}
.dq-menu-item svg{opacity:.7;flex-shrink:0}
.dq-menu-divider{height:1px;background:rgba(255,255,255,.08);margin:4px 0}
.dq-menu-delete{color:rgba(248,113,113,.8)}
.dq-menu-delete:hover{background:rgba(248,113,113,.1);color:#f87171}
.dq-menu-delete svg{color:#f87171;opacity:.8}
.demo-practice-btn{
  width:100%;padding:9px 14px;border-radius:8px;
  border:1px solid rgba(129,140,248,.35);background:rgba(129,140,248,.08);
  color:var(--accent2);font-family:'DM Mono',monospace;font-size:11px;
  cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:7px;
  letter-spacing:.04em;
}
.demo-practice-btn:hover{background:rgba(129,140,248,.15);border-color:rgba(129,140,248,.5)}
.demo-practice-btn.loading{opacity:.6;cursor:wait}
.demo-test-block{
  background:rgba(129,140,248,.06);border:1px solid rgba(129,140,248,.2);
  border-radius:10px;padding:14px;display:flex;flex-direction:column;gap:12px;
}
.demo-test-q{font-size:12px;color:var(--text);line-height:1.5}
.demo-test-q-num{font-size:9.5px;color:var(--accent2);letter-spacing:.08em;margin-bottom:5px}
.demo-test-options{display:flex;flex-direction:column;gap:5px;margin-top:6px}
.demo-test-opt{
  padding:6px 10px;border-radius:6px;border:1px solid var(--border);
  background:var(--surface2);color:var(--text-mid);font-family:'DM Mono',monospace;
  font-size:10.5px;cursor:pointer;transition:all .18s;text-align:left;
}
.demo-test-opt:hover{border-color:rgba(129,140,248,.4);color:var(--text);background:rgba(129,140,248,.08)}
.demo-test-opt.correct{border-color:#34d399;background:rgba(52,211,153,.1);color:#34d399}
.demo-test-opt.wrong{border-color:#f87171;background:rgba(248,113,113,.08);color:#f87171}

.demo-right{
  display:flex;flex-direction:column;
  position:relative;overflow:hidden;
}
.demo-chat-area{
  flex:1;padding:20px;display:flex;flex-direction:column;gap:10px;
  overflow-y:auto;
}
.demo-chat-area::-webkit-scrollbar{width:4px}
.demo-chat-area::-webkit-scrollbar-thumb{background:var(--border-hi);border-radius:4px}
.mockup-chat::-webkit-scrollbar{width:3px}
.mockup-chat::-webkit-scrollbar-track{background:transparent}
.mockup-chat::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:4px}
.mockup-chats-dropdown::-webkit-scrollbar{width:3px}
.mockup-chats-dropdown::-webkit-scrollbar-track{background:transparent}
.mockup-chats-dropdown::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:4px}
.mockup-left::-webkit-scrollbar{width:3px}
.mockup-left::-webkit-scrollbar-track{background:transparent}
.mockup-left::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:4px}

.demo-msg{
  max-width:88%;padding:11px 15px;border-radius:11px;
  font-size:12px;line-height:1.7;
}
.demo-msg.user{
  align-self:flex-end;background:var(--surface2);
  border:1px solid var(--border-hi);color:var(--text-mid);
}
.demo-msg.ai{
  align-self:flex-start;background:var(--bg2);
  border:1px solid var(--border);color:var(--text);
}
.demo-msg-name{font-size:9.5px;color:var(--accent2);letter-spacing:.06em;margin-bottom:5px}
.demo-msg .math-block{
  background:rgba(129,140,248,.06);border:1px solid rgba(129,140,248,.15);
  border-radius:7px;padding:9px 13px;margin:8px 0;
  font-family:'Fraunces',serif;font-size:15px;text-align:center;color:var(--text);
}
.demo-msg .step-tag{
  font-size:9px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--accent2);margin:10px 0 4px;display:block;
}
.demo-msg strong{color:var(--text);font-weight:500}
.demo-socratic{
  margin:4px 0 0;padding:11px 15px;
  background:rgba(129,140,248,.05);border:1px solid rgba(129,140,248,.12);
  border-radius:10px;font-size:11.5px;color:var(--text-mid);line-height:1.65;
  align-self:flex-start;max-width:88%;
}
.demo-socratic strong{color:var(--accent2)}

.demo-input-bar{
  border-top:1px solid var(--border);padding:13px 16px;
  display:flex;align-items:center;gap:10px;background:rgba(8,9,16,.5);
}
.demo-input{
  flex:1;background:var(--surface2);border:1px solid var(--border);
  border-radius:8px;padding:9px 14px;font-family:'DM Mono',monospace;
  font-size:11.5px;color:var(--text);outline:none;transition:border-color .2s;
}
.demo-input:focus{border-color:rgba(129,140,248,.4)}
.demo-input::placeholder{color:var(--text-dim)}
.demo-send{
  width:34px;height:34px;border-radius:8px;background:var(--accent);
  border:none;color:#08090f;cursor:pointer;display:flex;align-items:center;
  justify-content:center;transition:all .2s;flex-shrink:0;
}
.demo-send:hover{background:var(--accent2);transform:scale(1.05)}
.demo-send svg{width:14px;height:14px}

/* ─── FEATURES ─── */
.features-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:16px;overflow:hidden;
  margin-top:56px;
}
.feat{
  background:var(--bg);padding:26px 26px 0;transition:background .2s,box-shadow .2s;cursor:default;
  display:flex;flex-direction:column;overflow:hidden;
}
.feat:hover{background:var(--surface)}
.feat-top{padding-bottom:20px}
.feat-icon{
  width:34px;height:34px;border-radius:9px;
  background:rgba(129,140,248,.1);border:1px solid rgba(129,140,248,.18);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent2);margin-bottom:16px;
}
.feat-title{font-size:12.5px;color:var(--text);margin-bottom:7px}
.feat-desc{font-size:11px;color:var(--text-mid);line-height:1.68}

/* ── Feature preview pane ── */
.feat-preview{
  margin:0 -26px;padding:16px 20px;
  background:rgba(129,140,248,.04);border-top:1px solid rgba(129,140,248,.12);
  max-height:0;overflow:hidden;opacity:0;
  transition:max-height .35s ease, opacity .3s ease, padding .35s ease;
}
.feat:hover .feat-preview{
  max-height:200px;opacity:1;padding:16px 20px;
}

/* Camera preview */
.fp-cam-frame{
  position:relative;background:#050508;border:1px solid rgba(255,255,255,.08);
  border-radius:7px;padding:10px;margin-bottom:10px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;min-height:52px;
}
.fp-cam-scan{
  position:absolute;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(129,140,248,.7),transparent);
  animation:fpscan 2s ease-in-out infinite;
  top:0;
}
@keyframes fpscan{0%{top:0;opacity:1}80%{top:100%;opacity:.6}100%{top:100%;opacity:0}}
.fp-cam-badge{
  position:absolute;top:6px;left:8px;
  font-family:'DM Mono',monospace;font-size:9px;color:var(--accent2);
  background:rgba(129,140,248,.15);border:1px solid rgba(129,140,248,.3);
  border-radius:3px;padding:1px 6px;
}
.fp-cam-eq{font-family:'Fraunces',serif;font-size:18px;color:rgba(255,255,255,.22);letter-spacing:2px}
.fp-cam-result{display:flex;align-items:center;gap:8px}
.fp-cam-tag{font-family:'DM Mono',monospace;font-size:9px;color:var(--accent2);background:rgba(129,140,248,.1);border:1px solid rgba(129,140,248,.2);border-radius:4px;padding:2px 7px;white-space:nowrap}
.fp-cam-text{font-family:'DM Mono',monospace;font-size:10px;color:var(--text-mid)}

/* Voice preview */
.fp-voice-label{font-family:'DM Mono',monospace;font-size:9.5px;color:var(--accent2);margin-bottom:10px;letter-spacing:.05em}
.fp-waveform{display:flex;align-items:center;gap:3px;height:36px;margin-bottom:10px}
.fp-bar{
  flex:1;background:rgba(129,140,248,.5);border-radius:2px;
  animation:fpwave 1s ease-in-out infinite alternate;
}
.fp-bar:nth-child(1){height:30%;animation-delay:0s}
.fp-bar:nth-child(2){height:60%;animation-delay:.08s}
.fp-bar:nth-child(3){height:90%;animation-delay:.16s}
.fp-bar:nth-child(4){height:50%;animation-delay:.24s}
.fp-bar:nth-child(5){height:100%;animation-delay:.32s}
.fp-bar:nth-child(6){height:70%;animation-delay:.40s}
.fp-bar:nth-child(7){height:85%;animation-delay:.48s}
.fp-bar:nth-child(8){height:45%;animation-delay:.56s}
.fp-bar:nth-child(9){height:75%;animation-delay:.64s}
.fp-bar:nth-child(10){height:55%;animation-delay:.72s}
.fp-bar:nth-child(11){height:35%;animation-delay:.80s}
.fp-bar:nth-child(12){height:20%;animation-delay:.88s}
@keyframes fpwave{from{transform:scaleY(.3)}to{transform:scaleY(1)}}
.fp-voice-transcript{font-family:'DM Mono',monospace;font-size:10px;color:var(--text-mid);line-height:1.5;font-style:italic}

/* Personas preview */
.fp-persona-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.fp-persona{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);
  border-radius:7px;padding:7px 10px;font-family:'DM Mono',monospace;font-size:10px;
  color:var(--text-mid);
}
.fp-avatar{
  width:24px;height:24px;border-radius:50%;flex-shrink:0;
  background:color-mix(in srgb, var(--c) 18%, transparent);
  border:1px solid color-mix(in srgb, var(--c) 45%, transparent);
  display:flex;align-items:center;justify-content:center;
  color:var(--c);font-size:10px;font-weight:600;
}
.fp-persona span{font-size:9.5px;color:var(--text-mid)}

/* Adaptive preview */
.fp-adapt-levels{display:flex;flex-direction:column;gap:7px;margin-bottom:10px}
.fp-adapt-row{display:flex;align-items:center;gap:8px;font-family:'DM Mono',monospace;font-size:9.5px;color:var(--text-dim)}
.fp-adapt-row span{width:75px;flex-shrink:0}
.fp-adapt-bar{flex:1;height:5px;background:rgba(255,255,255,.07);border-radius:3px;overflow:hidden}
.fp-adapt-fill{height:100%;border-radius:3px;transition:width .8s ease}
.fp-adapt-active span{color:var(--text)}
.fp-adapt-animated{animation:fpadapt 2s ease-in-out infinite alternate}
@keyframes fpadapt{from{width:40%}to{width:92%}}
.fp-adapt-tag{font-family:'DM Mono',monospace;font-size:9.5px;color:var(--accent2);letter-spacing:.04em}

/* Practice test preview */
.fp-test-num{font-family:'DM Mono',monospace;font-size:9px;color:var(--accent2);letter-spacing:.07em;margin-bottom:6px}
.fp-test-text{font-family:'DM Mono',monospace;font-size:10.5px;color:var(--text);margin-bottom:8px;line-height:1.4}
.fp-test-opts{display:flex;flex-direction:column;gap:4px}
.fp-test-opt{font-family:'DM Mono',monospace;font-size:10px;color:var(--text-dim);padding:4px 8px;border-radius:5px;border:1px solid var(--border)}
.fp-test-correct{border-color:rgba(52,211,153,.4);background:rgba(52,211,153,.08);color:#34d399}

/* Socratic preview */
.fp-socratic-bubble{
  background:rgba(129,140,248,.07);border:1px solid rgba(129,140,248,.18);
  border-radius:10px;padding:12px 14px;margin-bottom:10px;
  display:flex;gap:10px;align-items:flex-start;
}
.fp-socratic-icon{font-size:16px;flex-shrink:0;margin-top:1px}
.fp-socratic-text{font-family:'DM Mono',monospace;font-size:10.5px;color:var(--text-mid);line-height:1.55}
.fp-socratic-hint{font-family:'DM Mono',monospace;font-size:9px;color:var(--text-dim);letter-spacing:.06em;text-align:center}

/* File Upload preview */
.fp-upload-area{display:flex;flex-direction:column;gap:6px;width:100%}
.fp-upload-icon{font-size:20px;text-align:center;margin-bottom:4px}
.fp-upload-files{display:flex;flex-direction:column;gap:5px}
.fp-upload-file{display:flex;align-items:center;justify-content:space-between;padding:5px 8px;border-radius:6px;border:1px solid var(--border);background:rgba(255,255,255,.03);font-family:'DM Mono',monospace;font-size:9.5px}
.fp-upload-name{color:var(--text-mid);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:140px}
.fp-upload-status{color:var(--text-dim);flex-shrink:0;margin-left:6px}
.fp-upload-done{color:#34d399}
.fp-upload-active{border-color:rgba(129,140,248,.4);background:rgba(129,140,248,.06)}
.fp-upload-active .fp-upload-status{color:var(--accent2);animation:pulse 1.2s ease-in-out infinite}

/* Screen Share preview */
.fp-screen-frame{border:1px solid var(--border);border-radius:7px;overflow:hidden;background:rgba(255,255,255,.03);width:100%;margin-bottom:8px}
.fp-screen-topbar{display:flex;align-items:center;gap:5px;padding:5px 8px;background:rgba(255,255,255,.05);border-bottom:1px solid var(--border)}
.fp-screen-dot{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.2);flex-shrink:0}
.fp-screen-url{font-family:'DM Mono',monospace;font-size:8.5px;color:var(--text-dim);margin-left:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fp-screen-content{padding:10px 10px 8px;display:flex;flex-direction:column;gap:6px}
.fp-screen-line{height:6px;border-radius:3px;background:rgba(255,255,255,.1)}
.fp-screen-highlight{background:rgba(129,140,248,.35)}
.fp-screen-badge{font-family:'DM Mono',monospace;font-size:9px;color:#34d399;letter-spacing:.06em;text-align:center}

/* Summary preview */
.fp-summary-card{border:1px solid var(--border);border-radius:8px;padding:10px 12px;background:rgba(255,255,255,.03);width:100%}
.fp-summary-header{font-family:'DM Mono',monospace;font-size:10px;color:var(--text);margin-bottom:9px;letter-spacing:.03em}
.fp-summary-row{display:flex;gap:8px;margin-bottom:6px;font-family:'DM Mono',monospace;font-size:9.5px}
.fp-summary-label{color:var(--text-dim);flex-shrink:0;width:52px}
.fp-summary-val{color:var(--text-mid);line-height:1.4}

/* ─── TESTIMONIALS ─── */
.tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:52px}
.tcard{
  background:var(--surface);border:1px solid var(--border);
  border-radius:14px;padding:26px;transition:border-color .2s;
}
.tcard:hover{border-color:var(--border-hi)}
.tstars{display:flex;gap:2px;margin-bottom:14px}
.tstars span{color:var(--amber);font-size:12px}
.ttext{font-size:11.5px;color:var(--text-mid);line-height:1.72;margin-bottom:18px}
.tauthor{display:flex;align-items:center;gap:10px}
.tavatar{
  width:30px;height:30px;border-radius:50%;background:var(--surface2);
  border:1px solid var(--border);display:flex;align-items:center;justify-content:center;
  font-size:12px;flex-shrink:0;
}
.tname{font-size:11px;color:var(--text)}
.tgrade{font-size:10px;color:var(--text-dim);letter-spacing:.04em}

/* ─── FAQ ─── */
.faq-list{margin-top:52px;max-width:660px}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;
  padding:18px 0;background:none;border:none;color:var(--text);
  font-family:'DM Mono',monospace;font-size:12.5px;text-align:left;
  cursor:pointer;transition:color .2s;gap:16px;
}
.faq-q:hover{color:var(--accent2)}
.faq-icon{flex-shrink:0;width:18px;height:18px;color:var(--text-dim);transition:transform .25s}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--accent)}
.faq-a{
  font-size:11.5px;color:var(--text-mid);line-height:1.72;
  max-height:0;overflow:hidden;
  transition:max-height .3s ease,padding-bottom .3s;
  padding-bottom:0;
}
.faq-item.open .faq-a{max-height:120px;padding-bottom:18px}

/* ─── CTA ─── */
.cta-outer{position:relative;z-index:1;max-width:1080px;margin:0 auto;padding:0 48px 120px}
.cta-inner{
  background:var(--surface);border:1px solid var(--border-hi);
  border-radius:22px;padding:80px 48px;text-align:center;position:relative;overflow:hidden;
}
.cta-inner::before{
  content:'';position:absolute;top:50%;left:50%;
  transform:translate(-50%,-50%);width:600px;height:600px;
  background:radial-gradient(circle,rgba(129,140,248,.07) 0%,transparent 65%);
  pointer-events:none;
}
.cta-title{font-family:'Fraunces',serif;font-weight:400;font-size:clamp(34px,4vw,56px);color:var(--text);margin-bottom:14px;position:relative}
.cta-title em{font-style:italic;color:var(--accent2)}
.cta-sub{font-size:13px;color:var(--text-mid);margin-bottom:32px;position:relative}
.cta-free{font-size:11px;color:var(--text-dim);margin-top:14px;letter-spacing:.04em}
.cta-free span{color:var(--green)}
.cta-actions{display:flex;justify-content:center;gap:12px;position:relative}

/* ─── FOOTER ─── */
footer{
  position:relative;z-index:1;
  border-top:1px solid var(--border);padding:40px 48px;
  display:flex;align-items:center;justify-content:space-between;
  max-width:1080px;margin:0 auto;
}
.foot-logo{display:flex;align-items:center;gap:8px;text-decoration:none}
.foot-name{font-family:'Fraunces',serif;font-style:italic;font-size:15px;color:var(--text-mid)}
.foot-links{display:flex;gap:24px;list-style:none}
.foot-links a{font-size:11px;color:var(--text-dim);text-decoration:none;transition:color .2s;letter-spacing:.04em}
.foot-links a:hover{color:var(--text-mid)}
.foot-copy{font-size:10px;color:var(--text-dim);letter-spacing:.04em}

/* ─── SCROLL REVEAL ─── */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .65s ease,transform .65s ease}
.reveal.in{opacity:1;transform:none}
.rd1{transition-delay:.1s}.rd2{transition-delay:.2s}.rd3{transition-delay:.3s}

/* ─── UTIL ─── */
.free-pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.2);
  border-radius:100px;padding:4px 12px;font-size:10px;color:var(--green);
  letter-spacing:.07em;margin-bottom:10px;
}

/* responsive */
@media(max-width:768px){
  nav{padding:0 20px;justify-content:center}
  .nav-links{display:none}
  .nav-right{display:none}
  .nav-links{display:none}
  .hero{padding:80px 24px 40px}
  .hero-mockup{display:none}
  .section,.demo-outer,.cta-outer{padding-left:24px;padding-right:24px}
  .hero-actions{gap:8px}
  .btn-hero,.btn-hero-outline{font-size:10px;padding:10px 14px;letter-spacing:.02em;white-space:nowrap}
  .netmap-header{grid-template-columns:1fr;gap:32px}
  .netmap-header{padding:0 20px}
  .netmap-wrap{padding:0 16px;box-sizing:border-box;width:100%}
  .netmap-section{padding:60px 0 80px}
  #netCanvas{max-width:100%;box-sizing:border-box}
  .demo-body{grid-template-columns:1fr}
  .features-grid,.tgrid{grid-template-columns:1fr}
  footer{flex-direction:column;gap:20px;text-align:center}
}
/* ── Summary + Flashcard combined card ─────────────────────────── */
.fp-sf-tabs{display:flex;gap:4px;margin-bottom:10px;background:rgba(255,255,255,0.04);border:1px solid var(--border);border-radius:7px;padding:3px}
.fp-sf-tab{flex:1;display:flex;align-items:center;justify-content:center;gap:5px;padding:5px 8px;border:none;border-radius:5px;background:transparent;color:var(--text-dim);font-family:'DM Mono',monospace;font-size:9.5px;letter-spacing:.04em;cursor:pointer;transition:background .18s,color .18s}
.fp-sf-tab:hover{color:var(--text-mid)}
.fp-sf-tab.active{background:var(--surface-2);color:var(--text);border:1px solid var(--border-hi)}
.fp-sf-panel{width:100%}
.fp-sf-panel.hidden{display:none}

/* Flashcard flip widget */
.fp-fc-wrap{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%}
.fp-fc-card{width:100%;height:80px;cursor:pointer;perspective:600px}
.fp-fc-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .38s cubic-bezier(.4,0,.2,1)}
.fp-fc-inner.flipped{transform:rotateY(180deg)}
.fp-fc-front,.fp-fc-back{position:absolute;inset:0;backface-visibility:hidden;border:1px solid var(--border);border-radius:8px;padding:9px 12px;background:rgba(255,255,255,.03);display:flex;flex-direction:column;gap:4px;justify-content:center}
.fp-fc-back{transform:rotateY(180deg);background:rgba(129,140,248,.05);border-color:rgba(129,140,248,.2)}
.fp-fc-label{font-family:'DM Mono',monospace;font-size:8px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim)}
.fp-fc-text{font-family:'DM Mono',monospace;font-size:10px;color:var(--text-mid);line-height:1.45}
.fp-fc-back .fp-fc-label{color:rgba(129,140,248,.6)}
.fp-fc-back .fp-fc-text{color:var(--text)}
.fp-fc-controls{display:flex;align-items:center;gap:8px;width:100%;justify-content:center}
.fp-fc-btn{width:22px;height:22px;border:1px solid var(--border-hi);border-radius:5px;background:var(--surface);color:var(--text-mid);font-size:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s;line-height:1}
.fp-fc-btn:hover{background:var(--surface-2);color:var(--text)}
.fp-fc-counter{font-family:'DM Mono',monospace;font-size:9px;color:var(--text-dim);letter-spacing:.06em;min-width:28px;text-align:center}