/* ============================================================
   K-RAM / Project FOURIER — Design System
   Dark theme · Neon (#5BFFBE) · Amber (#F0B429) · Rose (#FF4D6D)
   ============================================================ */

:root {
  --ink:    #05050A;
  --deep:   #090912;
  --panel:  #0D0D1C;
  --lift:   #111626;
  --line:   rgba(255,255,255,0.07);
  --neon:   #5BFFBE;
  --neon2:  #2DE8A2;
  --amber:  #F0B429;
  --rose:   #FF4D6D;
  --ice:    #B8D4FF;
  --fog:    #5C6E8A;
  --smoke:  #8A9BB8;
  --terra:  #C4754B;
  --bebas:  'Bebas Neue', sans-serif;
  --serif:  'Instrument Serif', Georgia, serif;
  --mono:   'IBM Plex Mono', monospace;
  --sans:   'IBM Plex Sans', sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--ink);color:#fff;font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden;}

/* ── SLIDE SHELL ──────────────────────────────────── */
.slide{width:100%;min-height:100vh;position:relative;overflow:hidden;display:flex;align-items:center;}
.slide+.slide{border-top:1px solid var(--line);}
.slide-inner{width:100%;max-width:1200px;margin:0 auto;padding:88px 72px 100px;position:relative;z-index:2;}
.slide-foot{position:absolute;bottom:24px;left:72px;right:72px;display:flex;justify-content:space-between;align-items:center;z-index:3;}
.slide-foot-pg,.slide-foot-brand{font-family:var(--mono);font-size:10px;color:var(--fog);letter-spacing:0.12em;}

/* ── BACKGROUNDS ──────────────────────────────────── */
.bg-ink  {background:var(--ink);}
.bg-deep {background:var(--deep);}
.bg-grid {
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(255,255,255,0.012) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.012) 1px,transparent 1px);
  background-size:52px 52px;
}
.glow{position:absolute;border-radius:50%;pointer-events:none;}
.glow-tl{top:-280px;left:-280px;width:720px;height:720px;background:radial-gradient(circle,rgba(91,255,190,0.07) 0%,transparent 60%);}
.glow-br{bottom:-280px;right:-280px;width:720px;height:720px;background:radial-gradient(circle,rgba(91,255,190,0.05) 0%,transparent 60%);}
.glow-c{top:50%;left:50%;transform:translate(-50%,-50%);width:960px;height:960px;background:radial-gradient(circle,rgba(91,255,190,0.07) 0%,transparent 56%);}
.glow-amber-br{bottom:-200px;right:-200px;width:600px;height:600px;background:radial-gradient(circle,rgba(240,180,41,0.05) 0%,transparent 60%);}
@keyframes breathe{0%,100%{opacity:1;}50%{opacity:0.55;}}
.breathe{animation:breathe 7s ease-in-out infinite;}

/* ── TYPOGRAPHY ────────────────────────────────────── */
.t-label{font-family:var(--mono);font-size:10px;letter-spacing:0.22em;text-transform:uppercase;color:var(--neon);display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.t-label::before{content:'';display:block;width:28px;height:1px;background:currentColor;flex-shrink:0;}
.t-label.amber{color:var(--amber);}
.t-label.fog{color:var(--fog);}
.t-label.ice{color:var(--ice);}
.t-label.rose{color:var(--rose);}
.t-label.terra{color:var(--terra);}

.t-mega{font-family:var(--bebas);font-size:clamp(88px,13vw,168px);line-height:0.88;letter-spacing:0.01em;}
.t-h1  {font-family:var(--bebas);font-size:clamp(52px,7vw,88px); line-height:0.9; letter-spacing:0.01em;}
.t-h2  {font-family:var(--bebas);font-size:clamp(36px,5vw,58px); line-height:0.92;letter-spacing:0.01em;}
.t-h3  {font-family:var(--sans); font-size:17px;font-weight:500;line-height:1.3;color:#fff;}
.t-serif{font-family:var(--serif);font-style:italic;color:var(--ice);line-height:1.45;}
.t-body {font-family:var(--sans);font-size:14px;font-weight:300;color:var(--smoke);line-height:1.8;}
.t-mono {font-family:var(--mono);font-size:11px;color:var(--fog);letter-spacing:0.1em;}

.neon  {color:var(--neon);}
.amber {color:var(--amber);}
.rose  {color:var(--rose);}
.ice   {color:var(--ice);}
.smoke {color:var(--smoke);}
.fog   {color:var(--fog);}
.terra {color:var(--terra);}
.white {color:#fff;}

/* ── LAYOUT ────────────────────────────────────────── */
.col-2{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.col-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:28px;}
.col-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:20px;}
.col-2-wide{display:grid;grid-template-columns:1.1fr 0.9fr;gap:56px;align-items:start;}
.rule{width:48px;height:2px;background:var(--neon);margin:28px 0;}
.divider{width:100%;height:1px;background:var(--line);margin:24px 0;}
.spacer-sm{height:20px;} .spacer-md{height:32px;} .spacer-lg{height:48px;}

/* ── CARDS ──────────────────────────────────────────── */
.card{background:var(--panel);border:1px solid var(--line);padding:32px;position:relative;}
.card-neon  {border-left:3px solid var(--neon);}
.card-amber {border-left:3px solid var(--amber);}
.card-rose  {border-left:3px solid var(--rose);}
.card-ice   {border-left:3px solid var(--ice);}
.card-fog   {border-left:3px solid var(--fog);}
.card-terra {border-left:3px solid var(--terra);}

/* ── COMPARE ────────────────────────────────────────── */
.compare{display:grid;grid-template-columns:1fr 60px 1fr;border:1px solid var(--line);}
.compare-col{padding:36px 40px;}
.compare-left {background:rgba(255,77,109,0.04);border-right:1px solid var(--line);}
.compare-right{background:rgba(91,255,190,0.03);}
.compare-vs{display:flex;align-items:center;justify-content:center;background:var(--lift);font-family:var(--bebas);font-size:18px;color:var(--fog);writing-mode:vertical-rl;letter-spacing:0.2em;}

/* ── CHECK ROWS ─────────────────────────────────────── */
.check-row{display:flex;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;font-weight:300;color:var(--smoke);align-items:flex-start;line-height:1.5;}
.check-row:last-child{border-bottom:none;}
.cr-icon{flex-shrink:0;margin-top:1px;font-size:12px;}
.cr-good{color:var(--neon);}
.cr-bad {color:var(--rose);}
.check-row strong{color:#fff;font-weight:500;}

/* ── STAT BLOCK ─────────────────────────────────────── */
.stat-block{padding:36px 32px;background:var(--panel);border:1px solid var(--line);}
.stat-val{font-family:var(--bebas);line-height:0.9;margin-bottom:10px;}
.stat-unit{font-family:var(--mono);font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--fog);margin-bottom:14px;}
.stat-note{font-size:13px;font-weight:300;color:var(--smoke);line-height:1.55;}

/* ── TAG ────────────────────────────────────────────── */
.tag{display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:0.14em;text-transform:uppercase;padding:5px 14px;border:1px solid currentColor;border-radius:2px;}

/* ── HIGHLIGHT BAR ──────────────────────────────────── */
.hi-bar{padding:20px 32px;font-family:var(--mono);font-size:12px;letter-spacing:0.06em;text-align:center;}
.hi-bar-neon {border:1px solid rgba(91,255,190,0.22);background:rgba(91,255,190,0.04);color:var(--neon);}
.hi-bar-amber{border:1px solid rgba(240,180,41,0.28);background:rgba(240,180,41,0.04);color:var(--amber);}
.hi-bar-rose {border:1px solid rgba(255,77,109,0.28);background:rgba(255,77,109,0.04);color:var(--rose);}

/* ── PULL QUOTE ─────────────────────────────────────── */
.pull-quote{font-family:var(--serif);font-style:italic;font-size:clamp(17px,2vw,24px);line-height:1.55;color:var(--ice);padding:40px 48px;border:1px solid rgba(91,255,190,0.18);background:rgba(91,255,190,0.03);position:relative;}
.pull-quote::before{content:'\201C';font-family:var(--serif);font-size:110px;color:var(--neon);opacity:0.1;position:absolute;top:-18px;left:20px;line-height:1;pointer-events:none;}

/* ── DATA TABLE ─────────────────────────────────────── */
.pt-wrap{border:1px solid var(--line);overflow:hidden;}
table.pt{width:100%;border-collapse:collapse;font-size:13px;}
.pt th{font-family:var(--mono);font-size:10px;letter-spacing:0.16em;text-transform:uppercase;color:var(--fog);padding:12px 18px;border-bottom:1px solid var(--line);text-align:left;font-weight:400;background:var(--panel);}
.pt td{padding:14px 18px;border-bottom:1px solid rgba(255,255,255,0.04);color:var(--smoke);font-weight:300;vertical-align:middle;}
.pt tr:last-child td{border-bottom:none;}
.pt .yr{font-family:var(--bebas);font-size:24px;color:#fff;}
.pt .nv{color:var(--neon);font-weight:500;}
.pt .av{color:var(--amber);font-weight:500;}
.pt .rv{color:var(--rose);}
.pt tr.hl td{background:rgba(91,255,190,0.04);}

/* ── FUND ROW ───────────────────────────────────────── */
.fund-row{display:grid;grid-template-columns:140px 1fr 96px;align-items:center;gap:24px;padding:22px 32px;border-bottom:1px solid var(--line);}
.fund-row:last-child{border-bottom:none;}
.fund-row:nth-child(even){background:rgba(255,255,255,0.012);}
.fund-num{font-family:var(--mono);font-size:10px;color:var(--fog);letter-spacing:0.14em;}
.fund-cat{font-family:var(--mono);font-size:10px;letter-spacing:0.14em;text-transform:uppercase;margin-top:4px;}
.fund-desc{font-size:13px;font-weight:300;color:var(--smoke);line-height:1.55;}
.fund-amt{font-family:var(--bebas);font-size:36px;text-align:right;line-height:0.9;}

/* ── RISK CARD ──────────────────────────────────────── */
.risk-card{border:1px solid var(--line);overflow:hidden;margin-bottom:2px;}
.risk-kill{padding:20px 32px;background:rgba(255,77,109,0.05);border-left:3px solid var(--rose);}
.risk-mit {padding:20px 32px;background:rgba(91,255,190,0.03);border-left:3px solid var(--neon);}
.risk-status{padding:10px 32px 12px;background:var(--lift);font-family:var(--mono);font-size:10px;color:var(--fog);letter-spacing:0.12em;}
.risk-num{font-family:var(--bebas);font-size:44px;line-height:0.9;margin-right:16px;flex-shrink:0;}
.risk-header{font-family:var(--sans);font-size:14px;font-weight:500;margin-bottom:6px;}
.risk-body{font-size:13px;font-weight:300;line-height:1.65;}
.risk-row{display:flex;align-items:flex-start;gap:0;}

/* ── CLOSING STAT ───────────────────────────────────── */
.close-stat{padding:28px 22px;background:var(--panel);border:1px solid var(--line);}

/* ── SIDE NAV ───────────────────────────────────────── */
#sidenav{position:fixed;right:24px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:8px;z-index:999;}
#sidenav a{width:5px;height:5px;border-radius:50%;background:var(--fog);display:block;transition:background 0.2s,transform 0.2s;text-decoration:none;cursor:pointer;}
#sidenav a:hover,#sidenav a.active{background:var(--neon);transform:scale(1.8);}

/* ── PROGRESS BAR ───────────────────────────────────── */
#progress{position:fixed;top:0;left:0;height:2px;background:var(--neon);z-index:9999;width:0%;transition:width 0.08s;}

/* ── CALCULATOR STYLES ──────────────────────────────── */
.calc-panel{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--neon);padding:28px 28px 24px;}
.calc-label{font-family:var(--mono);font-size:10px;letter-spacing:0.22em;text-transform:uppercase;color:var(--neon);display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.calc-label::before{content:'';display:block;width:28px;height:1px;background:var(--neon);}

.calc-panel select{background:var(--lift);border:1px solid var(--line);border-radius:4px;color:var(--smoke);font-family:var(--mono);font-size:12px;padding:8px 12px;width:100%;cursor:pointer;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%235C6E8A'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;}
.calc-panel select:focus{outline:none;border-color:var(--neon);}
.calc-panel input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:3px;background:var(--lift);border-radius:2px;cursor:pointer;}
.calc-panel input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--neon);cursor:pointer;box-shadow:0 0 6px rgba(91,255,190,0.4);}
.calc-panel input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--neon);cursor:pointer;border:none;}
.calc-panel .lbl{font-family:var(--mono);font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--fog);margin-bottom:10px;}
.calc-panel .row{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.calc-panel .row label{font-size:12px;color:var(--smoke);flex:0 0 170px;}
.calc-panel .row input[type=range]{flex:1;min-width:0;}
.calc-panel .row .val{font-family:var(--mono);font-size:12px;color:var(--neon);flex:0 0 90px;text-align:right;}
.calc-panel .tc{background:var(--lift);border:1px solid var(--line);border-radius:4px;padding:10px 12px;cursor:pointer;transition:border-color 0.15s;}
.calc-panel .tc:hover{border-color:var(--smoke);}
.calc-panel .tc.on{border-color:var(--neon);background:rgba(91,255,190,0.05);}
.calc-panel .tc h4{font-size:12px;font-weight:500;color:#fff;margin-bottom:2px;}
.calc-panel .tc p{font-size:11px;color:var(--fog);line-height:1.4;}
.calc-panel .metric{background:var(--lift);border-radius:4px;padding:14px 16px;border:1px solid var(--line);}
.calc-panel .metric .ml{font-size:11px;color:var(--fog);margin-bottom:5px;font-family:var(--mono);letter-spacing:0.08em;}
.calc-panel .metric .mv{font-size:22px;font-weight:400;font-family:var(--bebas);letter-spacing:0.03em;color:#fff;}
.calc-panel .metric .mv.green{color:var(--neon);}
.calc-panel .metric .mv.amber{color:var(--amber);}
.calc-panel .metric .mv.red{color:var(--rose);}
.calc-panel .bar-label{font-size:11px;color:var(--smoke);font-family:var(--mono);}
.calc-panel .bar-num{font-size:11px;color:#fff;font-family:var(--mono);}
.calc-panel .bar-track{background:var(--lift);border:1px solid var(--line);}
.calc-panel .callout{border-left:3px solid var(--ice);background:rgba(184,212,255,0.05);color:var(--ice);border-radius:0 4px 4px 0;padding:12px 16px;font-size:13px;line-height:1.6;}
.calc-panel .callout.warn{border-left-color:var(--amber);background:rgba(240,180,41,0.05);color:var(--amber);}
.calc-panel .callout.ok{border-left-color:var(--neon);background:rgba(91,255,190,0.05);color:var(--neon);}
.calc-panel .chip{background:var(--lift);border:1px solid var(--line);border-radius:4px;padding:10px 12px;}
.calc-panel .chip.hi{border-color:rgba(91,255,190,0.25);}
.calc-panel .chip .ck{font-size:10px;color:var(--fog);font-family:var(--mono);letter-spacing:0.1em;margin-bottom:3px;}
.calc-panel .chip .cv{font-size:13px;font-weight:500;color:#fff;font-family:var(--mono);}
.calc-panel .chip.hi .cv{color:var(--neon);}
.calc-panel hr{border:none;border-top:1px solid var(--line);margin:16px 0;}
.calc-panel button{padding:7px 14px;border:1px solid var(--line);border-radius:4px;font-size:11px;font-family:var(--mono);letter-spacing:0.08em;color:var(--smoke);cursor:pointer;background:var(--lift);margin:4px 4px 0 0;transition:border-color 0.15s,color 0.15s;}
.calc-panel button:hover{border-color:var(--neon);color:var(--neon);}
.calc-panel .footnote{font-size:11px;color:var(--fog);line-height:1.6;font-family:var(--mono);margin-top:12px;}
.calc-panel .sec{margin-bottom:18px;}
.calc-panel .metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:12px 0;}
.calc-panel .chip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0;}
.calc-panel .bar-section{margin:10px 0;}
.calc-panel .bar-row{display:flex;align-items:center;gap:8px;margin-bottom:7px;}
.calc-panel .bar-fill{height:100%;border-radius:4px;transition:width .25s;}
.calc-panel .bar-track{flex:1;height:8px;border-radius:4px;overflow:hidden;}
.calc-panel .tier-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-bottom:12px;}

/* ── GPU COMPARISON TABLE ───────────────────────────── */
.gc-table{display:grid;grid-template-columns:1fr 1fr 1fr;gap:2px;}
.gc-col{background:var(--panel);border:1px solid var(--line);overflow:hidden;}
.gc-col.featured{border-color:rgba(91,255,190,0.35);background:rgba(91,255,190,0.03);}
.gc-chip{padding:20px 22px 16px;border-bottom:1px solid var(--line);}
.gc-col.featured .gc-chip{border-bottom-color:rgba(91,255,190,0.2);}
.gc-chip-label{font-family:var(--mono);font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--fog);margin-bottom:6px;}
.gc-chip-name{font-family:var(--bebas);font-size:32px;line-height:0.9;margin-bottom:4px;}
.gc-chip-sub{font-size:11px;font-weight:300;color:var(--smoke);line-height:1.5;}
.gc-row{padding:11px 22px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:3px;}
.gc-col.featured .gc-row{border-bottom-color:rgba(91,255,190,0.1);}
.gc-row:last-child{border-bottom:none;}
.gc-row-label{font-family:var(--mono);font-size:10px;letter-spacing:0.12em;text-transform:uppercase;color:var(--fog);}
.gc-row-val{font-family:var(--bebas);font-size:22px;line-height:0.95;letter-spacing:0.02em;}
.gc-row-note{font-size:11px;font-weight:300;color:var(--smoke);}
.gc-delta{padding:12px 22px;background:rgba(91,255,190,0.06);border-top:1px solid rgba(91,255,190,0.2);}
.gc-col.featured .gc-delta{background:rgba(91,255,190,0.1);}
.gc-delta-label{font-family:var(--mono);font-size:9px;letter-spacing:0.16em;text-transform:uppercase;color:var(--neon);margin-bottom:4px;}
.gc-delta-val{font-family:var(--bebas);font-size:18px;color:var(--neon);line-height:1;}
.gc-delta-note{font-size:11px;color:var(--smoke);font-weight:300;margin-top:2px;}

/* ── SPLIT LAYOUT ───────────────────────────────────── */
.split{display:grid;grid-template-columns:1fr 360px;gap:28px;align-items:start;}

/* ── PROOF PANEL ────────────────────────────────────── */
.proof-panel{display:flex;flex-direction:column;gap:16px;}
.proof-card{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--neon);padding:24px;}
.proof-card.amber{border-left-color:var(--amber);}
.proof-card.fog{border-left-color:var(--fog);}
.proof-label{font-family:var(--mono);font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--fog);margin-bottom:10px;}
.proof-hl{font-family:var(--sans);font-size:15px;font-weight:500;color:#fff;margin-bottom:8px;line-height:1.3;}
.proof-body{font-size:13px;font-weight:300;color:var(--smoke);line-height:1.7;}
.proof-body strong{color:#fff;font-weight:500;}

/* ── RESPONSIVE ─────────────────────────────────────── */
@media(max-width:1024px){
  .slide-inner{padding:60px 32px 80px;}
  .slide-foot{left:32px;right:32px;}
  .col-2,.col-3,.col-4,.col-2-wide{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .compare-vs{writing-mode:horizontal-tb;padding:12px;}
  .gc-table{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;}
  .fund-row{grid-template-columns:1fr;gap:8px;}
  .fund-amt{text-align:left;}
  .calc-panel .tier-row{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:600px){
  .slide-inner{padding:48px 20px 72px;}
  .slide-foot{left:20px;right:20px;}
  #sidenav{right:12px;}
  .calc-panel .tier-row{grid-template-columns:1fr;}
}