/* کنکوریار — deep crimson/gold accent, high-stakes exam-prep feel */
:root{
  --bg:#0F0509;--surface:#150810;--card:#1C0D16;--card-hi:#241220;
  --line:#3A1524;--line-hi:#591F32;
  --text:#F5E8EC;--dim:#B98A93;--faint:#6E3542;
  --green:#E11D48;--green-hi:#FB7185;--green-dim:rgba(225,29,72,.12);--green-line:rgba(225,29,72,.32);
  --gold:#D4AF37;--gold-hi:#E8C766;
  --bad:#F97316;--warn:#F59E0B;
  --sans:"Vazirmatn",Tahoma,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --r:13px;--r-lg:18px;--wrap:1100px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:4px}
::selection{background:var(--green);color:#fff}

.site-head{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.site-head__row{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text)}
.logo__mark{width:28px;height:28px;flex:none;border-radius:8px;background:linear-gradient(145deg,var(--green-hi),var(--green));box-shadow:0 0 18px -6px var(--green);display:grid;place-items:center;font-size:16px}
.logo__text{font-size:19px;font-weight:750;letter-spacing:-.03em}
.burger{display:grid;gap:5px;width:40px;height:38px;place-content:center;background:var(--card);border:1px solid var(--line);border-radius:9px;cursor:pointer}
.burger span{display:block;width:16px;height:1.5px;background:var(--dim);border-radius:2px}
.nav{border-top:1px solid var(--line);display:none;background:var(--surface)}
.nav.is-open{display:block}
.nav__inner{display:flex;flex-wrap:wrap;gap:3px;padding-block:10px}
.nav__link{padding:7px 12px;border-radius:8px;text-decoration:none;color:var(--dim);font-size:13.5px;font-weight:500;transition:.15s;text-shadow:0 0 9px rgba(255,255,255,.16),0 0 2px rgba(255,255,255,.22);border:1px solid rgba(255,255,255,.10);}
.nav__link:hover{background:var(--card-hi);color:var(--text);text-shadow:0 0 12px rgba(255,255,255,.30),0 0 3px rgba(255,255,255,.35);border-color:rgba(255,255,255,.28);}
.nav__link.is-on{background:var(--green-dim);color:var(--green-hi)}
@media(min-width:980px){.burger{display:none}.nav{display:block;border-top:0;background:transparent}.nav__inner{padding-block:8px;border-top:1px solid var(--line);justify-content:center}}

.home-hero{position:relative;padding:80px 0 36px;text-align:center;overflow:hidden}
.home-hero::before{content:'';position:absolute;top:-280px;left:50%;transform:translateX(-50%);width:760px;height:560px;pointer-events:none;background:radial-gradient(ellipse,rgba(225,29,72,.14),transparent 60%)}
.home-hero h1{font-size:clamp(36px,7.5vw,68px);line-height:1.04;letter-spacing:-.045em;font-weight:800;margin:0 0 18px}
.home-hero h1 em{font-style:normal;background:linear-gradient(180deg,var(--green-hi),var(--green));-webkit-background-clip:text;background-clip:text;color:transparent}
.home-hero p{margin:0 auto;max-width:54ch;color:var(--dim);font-size:17.5px}
.eyebrow{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--green-hi);margin-bottom:18px}
.badges{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:24px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:99px;background:var(--card);border:1px solid var(--line);font-size:13px;color:var(--dim)}
.badge::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--green)}
.hero{padding:42px 0 8px}
.crumb{font-size:12px;color:var(--faint);margin:0 0 12px}
.crumb a{color:var(--faint);text-decoration:none}
.crumb a:hover{color:var(--green-hi)}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.1;letter-spacing:-.04em;font-weight:800;margin:0 0 10px}
.hero p{margin:0;color:var(--dim);font-size:17px;max-width:62ch}

.tiles{display:grid;gap:13px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.tile{position:relative;display:flex;gap:14px;padding:19px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);text-decoration:none;color:var(--text);overflow:hidden;transition:.2s}
.tile::after{content:'';position:absolute;top:0;left:20px;right:20px;height:1px;background:linear-gradient(90deg,transparent,var(--green-line),transparent);opacity:0;transition:.25s}
.tile:hover{border-color:var(--line-hi);transform:translateY(-3px);background:var(--card-hi)}
.tile:hover::after{opacity:1}
.tile__icon{flex:none;width:42px;height:42px;display:grid;place-items:center;border-radius:11px;background:var(--green-dim);color:var(--green-hi);transition:.2s}
.tile:hover .tile__icon{background:var(--green);color:#fff}
.tile__body{display:flex;flex-direction:column;gap:3px;min-width:0}
.tile__title{font-weight:650;font-size:16px;letter-spacing:-.02em}
.tile__desc{color:var(--dim);font-size:13.5px;line-height:1.6}

.bench{position:relative;margin:24px 0;padding:26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:0 24px 56px -30px rgba(0,0,0,.9)}
.bench::before{content:'';position:absolute;top:-1px;left:28px;right:28px;height:1px;background:linear-gradient(90deg,transparent,var(--green-line),transparent)}
@media(min-width:700px){.bench{padding:30px}}

.grid{display:grid;gap:15px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));margin-top:18px}
.bench>.grid:first-child{margin-top:0}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field__label{font-size:13px;color:var(--dim);font-weight:500}
.input,.select{width:100%;padding:11px 13px;font-family:var(--sans);font-size:15px;background:var(--card);color:var(--text);border:1px solid var(--line);border-radius:10px;transition:.16s}
.input::placeholder{color:var(--faint)}
.input:focus,.select:focus{outline:none;border-color:var(--green-line);box-shadow:0 0 0 4px var(--green-dim)}
.select{appearance:none;padding-left:32px;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--dim) 50%),linear-gradient(135deg,var(--dim) 50%,transparent 50%);background-position:calc(100% - 17px) center,calc(100% - 12px) center;background-size:5px 5px;background-repeat:no-repeat}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;cursor:pointer;border:1px solid var(--line-hi);background:var(--card);color:var(--text);font-family:var(--sans);font-size:15px;font-weight:600;text-decoration:none;transition:.15s}
.btn:hover{background:var(--card-hi)}
.btn--go{background:linear-gradient(180deg,var(--green-hi),var(--green));border-color:transparent;color:#fff;box-shadow:0 6px 22px -10px var(--green)}
.btn--go:hover{filter:brightness(1.08)}

.out:empty{display:none}
.out{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.big{font-size:clamp(26px,5vw,40px);line-height:1.15;letter-spacing:-.04em;font-weight:800;margin:0 0 16px;word-break:break-word}
.big--green{color:var(--green-hi)}
.row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:15px}
.row:last-child{border-bottom:0}
.row span:first-child{color:var(--dim)}
.row b{font-weight:650;font-variant-numeric:tabular-nums}
.row--total{margin-top:6px;padding-top:14px;border-top:1px solid var(--line-hi);border-bottom:0;font-size:18px}
.row--total b{color:var(--green-hi)}
.row--bad b{color:var(--bad)}
.note{margin-top:18px;padding:13px 15px;border-radius:10px;font-size:14px;line-height:1.8;background:var(--green-dim);border:1px solid var(--green-line)}
.err:empty{display:none}
.err{margin-top:14px;padding:12px 15px;border-radius:10px;font-size:14px;background:rgba(249,115,22,.1);border:1px solid rgba(249,115,22,.3);color:#fdba74}

/* کنکوریار-specific: dynamic subject rows (tools 3, 4, 6) */
.kk-rows{display:flex;flex-direction:column;gap:8px}
.kk-row{display:grid;grid-template-columns:1fr 90px 90px 24px;gap:8px;align-items:center}
.kk-row input,.kk-row select{padding:9px 10px;font-size:14px}
.kk-row--2{grid-template-columns:1fr 90px 24px}
.kk-add{margin-top:4px;align-self:flex-start}
.kk-x{border:0;background:none;color:var(--faint);font-size:19px;cursor:pointer;border-radius:7px;padding:2px 6px;transition:.15s;line-height:1}
.kk-x:hover{background:rgba(249,115,22,.15);color:var(--bad)}

/* کنکوریار-specific: hour/time allocation bars (tools 4, 6) */
.kk-bar-row{margin-bottom:11px}
.kk-bar-row__label{display:flex;justify-content:space-between;font-size:13px;color:var(--dim);margin-bottom:4px}
.kk-bar-row__label b{color:var(--text);font-weight:650}
.kk-bar-track{background:var(--card);border:1px solid var(--line);border-radius:8px;height:14px;overflow:hidden}
.kk-bar-fill{height:100%;border-radius:8px;background:linear-gradient(90deg,var(--green),var(--gold))}

/* کنکوریار-specific: phase timeline (tool 5) */
.kk-phase{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.kk-phase:last-child{border-bottom:0}
.kk-phase__dot{flex:none;width:11px;height:11px;border-radius:50%;background:var(--green);margin-top:5px;box-shadow:0 0 0 4px var(--green-dim)}
.kk-phase__body{min-width:0}
.kk-phase__name{font-weight:650;font-size:15px;margin-bottom:3px}
.kk-phase__range{color:var(--dim);font-size:13.5px;font-variant-numeric:tabular-nums}
.kk-phase__days{color:var(--gold-hi);font-size:13px;font-weight:600;margin-top:2px}

.search{position:relative;max-width:460px;margin:30px auto 0}
.search input{width:100%;padding:14px 46px 14px 18px;font-size:16px;font-family:var(--sans);background:var(--card);color:var(--text);border:1px solid var(--line-hi);border-radius:12px;transition:.18s}
.search input::placeholder{color:var(--faint)}
.search input:focus{outline:none;border-color:var(--green-line);box-shadow:0 0 0 4px var(--green-dim)}
.search__icon{position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--faint);pointer-events:none}
.search__empty{text-align:center;color:var(--faint);padding:36px;display:none}

.section{padding:38px 0}
.section__title{font-size:22px;font-weight:750;letter-spacing:-.03em;margin:0 0 18px}
.prose{max-width:70ch}
.prose h2{font-size:22px;font-weight:750;letter-spacing:-.03em;margin:32px 0 10px}
.prose h2:first-child{margin-top:0}
.prose p{margin:0 0 12px;color:#D8B3BB}
.prose ul,.prose ol{margin:0 0 12px;padding-right:20px;padding-left:0;color:#D8B3BB}
.prose li{margin-bottom:6px}
.prose li::marker{color:var(--green)}
.prose a{color:var(--green-hi);text-decoration:none;border-bottom:1px solid var(--green-line)}
.prose strong{color:var(--text)}
.prose code{background:var(--card);border:1px solid var(--line);border-radius:6px;padding:1px 7px;font-family:"JetBrains Mono",monospace;font-size:13px;color:var(--gold-hi)}
.faq{max-width:70ch;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{padding:16px 0;cursor:pointer;font-weight:600;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;gap:14px;transition:.15s}
.faq summary:hover{color:var(--green-hi)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--green);font-size:20px;line-height:1;flex:none;font-weight:400}
.faq details[open] summary::after{content:'–'}
.faq p{margin:0 0 16px;color:#D8B3BB;font-size:15px}
.ad{margin:28px 0;min-height:100px;display:grid;place-items:center}
.ad--empty{border:1px dashed var(--line);border-radius:var(--r);color:#4A2530;font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.site-foot{border-top:1px solid var(--line);padding:36px 0;margin-top:16px;background:var(--surface)}
.foot__line{margin:0 0 16px;color:var(--dim);font-size:14.5px}
.foot__nav{display:flex;flex-wrap:wrap;gap:20px;margin-bottom:16px}
.foot__nav a{color:var(--dim);text-decoration:none;font-size:14px;transition:.15s}
.foot__nav a:hover{color:var(--green-hi)}
.foot__copy{margin:0;color:var(--faint);font-size:12.5px}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
[hidden]{display:none!important}