/* ============================================================
   ФФРО — Федерация фехтования Рязанской области
   Shared design system stylesheet
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  /* palette — graphite premium */
  --bg:            #0B0E14;
  --bg-2:          #0E121B;
  --surface:       #12161F;
  --surface-2:     #181D29;
  --surface-3:     #1F2533;
  --line:          #29303F;
  --line-soft:     #1C2230;

  /* text */
  --ink:           #F3F5FA;
  --ink-soft:      #C2C9D6;
  --muted:         #8B94A7;
  --muted-2:       #5C6679;

  /* modern tricolor */
  --white:         #EDF1F7;
  --blue:          #2C6BE0;
  --blue-bright:   #4A86FF;
  --red:           #E22A39;
  --red-bright:    #FF4150;

  --steel-1:       #AEB8C9;
  --steel-2:       #6E788C;

  /* effects */
  --glow-blue:     0 0 0 1px rgba(74,134,255,.35), 0 18px 50px -12px rgba(44,107,224,.45);
  --glow-red:      0 0 0 1px rgba(255,65,80,.35), 0 18px 50px -12px rgba(226,42,57,.45);
  --shadow-card:   0 24px 60px -28px rgba(0,0,0,.85);
  --shadow-soft:   0 14px 40px -20px rgba(0,0,0,.7);

  /* type scale */
  --fs-hero:       clamp(56px, 9.5vw, 168px);
  --fs-display:    clamp(40px, 6vw, 88px);
  --fs-h2:         clamp(32px, 4.4vw, 60px);
  --fs-h3:         clamp(22px, 2.4vw, 32px);
  --fs-lead:       clamp(18px, 1.5vw, 23px);
  --fs-body:       17px;
  --fs-small:      14.5px;
  --fs-eyebrow:    13px;

  /* spacing */
  --container:     1280px;
  --container-wide:1500px;
  --gut:           clamp(22px, 5vw, 96px);
  --section-y:     clamp(84px, 10vw, 168px);
  --radius:        16px;
  --radius-lg:     24px;

  --ease:          cubic-bezier(.22,.61,.36,1);
  --ease-out:      cubic-bezier(.16,1,.3,1);

  --font-display:  "Oswald", "Manrope", sans-serif;
  --font-body:     "Manrope", system-ui, sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; overflow-x:hidden; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.6;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3,h4{ margin:0; font-family:var(--font-display); font-weight:600; line-height:1.02; letter-spacing:.01em; }
p{ margin:0; }
::selection{ background:var(--red); color:#fff; }

/* page background texture: subtle vignette + grain */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(120% 80% at 80% -10%, rgba(44,107,224,.10), transparent 60%),
    radial-gradient(90% 70% at -5% 12%, rgba(226,42,57,.08), transparent 55%);
}

/* ---------- Layout helpers ---------- */
.container{ width:100%; max-width:var(--container); margin-inline:auto; padding-inline:var(--gut); }
.container--wide{ max-width:var(--container-wide); }
.section{ position:relative; padding-block:var(--section-y); z-index:1; }
.section--tight{ padding-block:clamp(56px,6vw,96px); }
main{ position:relative; z-index:1; }

/* ---------- Tricolor motif ---------- */
.tricolor{ display:inline-flex; height:4px; border-radius:4px; overflow:hidden; }
.tricolor > i{ display:block; width:26px; height:100%; }
.tricolor > i:nth-child(1){ background:var(--white); }
.tricolor > i:nth-child(2){ background:var(--blue); }
.tricolor > i:nth-child(3){ background:var(--red); }
.tricolor--v{ flex-direction:column; height:auto; width:4px; }
.tricolor--v > i{ width:100%; height:22px; }

/* ---------- Eyebrow / section heads ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:14px;
  font-family:var(--font-display); font-weight:500;
  font-size:var(--fs-eyebrow); letter-spacing:.34em; text-transform:uppercase;
  color:var(--muted);
}
.eyebrow b{ color:var(--red); font-weight:600; }
.eyebrow .tricolor{ height:3px; }

.section-head{ max-width:760px; margin-bottom:clamp(40px,4.5vw,68px); }
.section-head h2{
  font-size:var(--fs-h2); text-transform:uppercase; margin-top:22px; color:var(--white);
  letter-spacing:.005em;
}
.section-head h2 em{ font-style:normal; color:var(--red); }
.section-head h2 .blue{ color:var(--blue-bright); }
.section-head p{ margin-top:20px; color:var(--muted); font-size:var(--fs-lead); line-height:1.55; max-width:60ch; }
.section-head--center{ margin-inline:auto; text-align:center; }
.section-head--center .eyebrow{ justify-content:center; }
.section-head--split{ max-width:none; display:flex; align-items:flex-end; justify-content:space-between; gap:40px; flex-wrap:wrap; }
.section-head--split p{ margin-top:0; }

/* ---------- Buttons ---------- */
.btn{
  --bw:1px;
  position:relative; display:inline-flex; align-items:center; gap:12px;
  padding:16px 30px; border:var(--bw) solid transparent; border-radius:100px;
  font-family:var(--font-display); font-weight:500; font-size:15px;
  letter-spacing:.12em; text-transform:uppercase; white-space:nowrap;
  transition:transform .35s var(--ease), background .3s, box-shadow .35s, color .3s, border-color .3s;
  will-change:transform;
}
.btn svg{ width:18px; height:18px; transition:transform .35s var(--ease); }
.btn--primary{ background:var(--red); color:#fff; box-shadow:0 12px 34px -12px rgba(226,42,57,.7); }
.btn--primary:hover{ background:var(--red-bright); box-shadow:0 18px 44px -10px rgba(255,65,80,.75); transform:translateY(-3px); }
.btn--primary:hover svg{ transform:translateX(5px); }
.btn--ghost{ border-color:var(--line); color:var(--ink); background:rgba(255,255,255,.015); }
.btn--ghost:hover{ border-color:var(--white); transform:translateY(-3px); background:rgba(255,255,255,.04); }
.btn--blue{ background:var(--blue); color:#fff; box-shadow:0 12px 34px -12px rgba(44,107,224,.7); }
.btn--blue:hover{ background:var(--blue-bright); transform:translateY(-3px); }
.btn--lg{ padding:19px 38px; font-size:16px; }
.btn--block{ width:100%; justify-content:center; }

.link-arrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-display); font-weight:500; font-size:14px;
  letter-spacing:.16em; text-transform:uppercase; color:var(--ink);
  transition:gap .3s var(--ease), color .3s;
}
.link-arrow svg{ width:16px; height:16px; transition:transform .35s var(--ease); }
.link-arrow:hover{ color:var(--red-bright); gap:16px; }
.link-arrow:hover svg{ transform:translateX(4px); }

/* ---------- Chips / tags ---------- */
.chip{
  display:inline-flex; align-items:center; gap:8px;
  padding:7px 14px; border-radius:100px; border:1px solid var(--line);
  font-size:12.5px; font-weight:600; letter-spacing:.04em; color:var(--ink-soft);
  background:rgba(255,255,255,.02);
}
.chip--red{ color:#fff; background:rgba(226,42,57,.16); border-color:rgba(226,42,57,.42); }
.chip--blue{ color:#fff; background:rgba(44,107,224,.16); border-color:rgba(44,107,224,.42); }
.chip--saber{ color:#FFC79A; border-color:rgba(226,42,57,.4); }

/* weapon-coded dots */
.dot{ width:9px; height:9px; border-radius:50%; display:inline-block; }
.dot--saber{ background:var(--red); }
.dot--epee{ background:var(--blue-bright); }
.dot--foil{ background:var(--white); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:background .4s var(--ease), border-color .4s, backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(8,11,17,.78);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line-soft);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  height:84px; transition:height .4s var(--ease);
}
.scrolled .nav{ height:70px; }
.brand{ display:flex; align-items:center; gap:14px; }
.brand__mark{ width:42px; height:42px; flex:0 0 auto; }
.brand__txt{ display:flex; flex-direction:column; line-height:1; }
.brand__txt b{ font-family:var(--font-display); font-weight:600; font-size:17px; letter-spacing:.16em; text-transform:uppercase; color:var(--white); }
.brand__txt span{ font-size:10.5px; letter-spacing:.22em; text-transform:uppercase; color:var(--muted); margin-top:5px; }

.nav__links{ display:flex; align-items:center; gap:6px; }
.nav__links a{
  position:relative; padding:10px 15px; font-size:14px; font-weight:600;
  color:var(--ink-soft); letter-spacing:.01em; border-radius:9px;
  transition:color .25s;
}
.nav__links a::after{
  content:""; position:absolute; left:15px; right:15px; bottom:4px; height:2px;
  background:var(--red); transform:scaleX(0); transform-origin:left; transition:transform .3s var(--ease);
}
.nav__links a:hover{ color:var(--white); }
.nav__links a:hover::after,
.nav__links a.is-active::after{ transform:scaleX(1); }
.nav__links a.is-active{ color:var(--white); }
.nav__cta{ display:flex; align-items:center; gap:14px; }

.burger{ display:none; width:46px; height:46px; border:1px solid var(--line); border-radius:11px; background:rgba(255,255,255,.02); flex-direction:column; align-items:center; justify-content:center; gap:5px; }
.burger span{ width:20px; height:2px; background:var(--ink); transition:.3s; }
.burger.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2){ opacity:0; }
.burger.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* mobile menu */
.mobile-menu{
  position:fixed; inset:0; z-index:99; background:rgba(7,9,14,.97); backdrop-filter:blur(10px);
  display:flex; flex-direction:column; justify-content:center; gap:6px; padding:var(--gut);
  transform:translateY(-100%); transition:transform .5s var(--ease); visibility:hidden;
}
.mobile-menu.open{ transform:translateY(0); visibility:visible; }
.mobile-menu a{ font-family:var(--font-display); font-weight:500; font-size:clamp(28px,7vw,46px); text-transform:uppercase; color:var(--ink); padding:10px 0; border-bottom:1px solid var(--line-soft); letter-spacing:.02em; }
.mobile-menu a:hover{ color:var(--red-bright); padding-left:14px; transition:.3s; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{ position:relative; z-index:1; background:var(--bg-2); border-top:1px solid var(--line); padding-top:clamp(64px,7vw,110px); }
.footer-grid{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:48px; padding-bottom:64px; }
.footer-brand .brand{ margin-bottom:22px; }
.footer-brand p{ color:var(--muted); font-size:15px; max-width:34ch; }
.footer-col h4{ font-family:var(--font-display); font-weight:500; font-size:13px; letter-spacing:.2em; text-transform:uppercase; color:var(--muted-2); margin-bottom:20px; }
.footer-col a{ display:block; color:var(--ink-soft); font-size:15px; padding:7px 0; transition:color .25s, padding-left .25s; }
.footer-col a:hover{ color:var(--red-bright); padding-left:6px; }
.footer-social{ display:flex; gap:12px; margin-top:22px; }
.footer-social a{ width:42px; height:42px; border:1px solid var(--line); border-radius:11px; display:grid; place-items:center; color:var(--ink-soft); transition:.3s; }
.footer-social a:hover{ border-color:var(--red); color:#fff; background:var(--red); transform:translateY(-3px); }
.footer-bottom{ display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap; padding-block:28px; border-top:1px solid var(--line-soft); color:var(--muted-2); font-size:13px; }
.footer-bottom a:hover{ color:var(--ink-soft); }

/* ============================================================
   REVEAL ANIMATIONS
   ============================================================ */
[data-reveal]{ opacity:0; transform:translateY(38px); transition:opacity .9s var(--ease-out), transform .9s var(--ease-out); }
[data-reveal="left"]{ transform:translateX(-46px); }
[data-reveal="right"]{ transform:translateX(46px); }
[data-reveal="scale"]{ transform:scale(.93); }
[data-reveal].in{ opacity:1; transform:none; }
[data-reveal-delay="1"]{ transition-delay:.08s; }
[data-reveal-delay="2"]{ transition-delay:.16s; }
[data-reveal-delay="3"]{ transition-delay:.24s; }
[data-reveal-delay="4"]{ transition-delay:.32s; }
[data-reveal-delay="5"]{ transition-delay:.40s; }
[data-reveal-delay="6"]{ transition-delay:.48s; }
@media (prefers-reduced-motion: reduce){
  [data-reveal]{ opacity:1 !important; transform:none !important; transition:none !important; }
}

/* clip-reveal for headlines */
.line-mask{ display:block; overflow:hidden; padding-block:.04em; }
.line-mask > span{ display:block; transform:translateY(110%); transition:transform 1s var(--ease-out); }
.line-mask.in > span,[data-reveal].in .line-mask > span{ transform:translateY(0); }

/* ============================================================
   CARDS — shared
   ============================================================ */
.card{
  position:relative; background:var(--surface); border:1px solid var(--line-soft);
  border-radius:var(--radius); overflow:hidden;
  transition:transform .5s var(--ease), border-color .4s, box-shadow .5s;
}
.card:hover{ transform:translateY(-7px); border-color:var(--line); box-shadow:var(--shadow-card); }
.card__media{ position:relative; aspect-ratio:4/3; overflow:hidden; }
.card__media img{ width:100%; height:100%; object-fit:cover; transition:transform 1.1s var(--ease-out), filter .5s; filter:grayscale(.25) contrast(1.04); }
.card:hover .card__media img{ transform:scale(1.07); filter:grayscale(0) contrast(1.06); }
.card__media::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg, transparent 40%, rgba(8,10,15,.55)); }
.card__body{ padding:26px; }

/* shared blade divider (SVG draw) */
.blade-divider{ position:relative; height:2px; width:100%; overflow:visible; }
.blade-divider svg{ width:100%; height:2px; overflow:visible; }
.blade-divider path{ stroke-dasharray:1; stroke-dashoffset:1; }

/* utility */
.stack-sm > * + *{ margin-top:12px; }
.muted{ color:var(--muted); }
.u-red{ color:var(--red-bright); }
.u-blue{ color:var(--blue-bright); }
.grid{ display:grid; gap:26px; }
.cols-2{ grid-template-columns:repeat(2,1fr); }
.cols-3{ grid-template-columns:repeat(3,1fr); }
.cols-4{ grid-template-columns:repeat(4,1fr); }

@media (max-width:1080px){
  .cols-4{ grid-template-columns:repeat(2,1fr); }
  .cols-3{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:40px; }
}
@media (max-width:880px){
  .nav__links,.nav__cta .btn{ display:none; }
  .burger{ display:flex; }
  .section-head--split{ flex-direction:column; align-items:flex-start; }
}
@media (max-width:680px){
  .cols-2,.cols-3,.cols-4{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
}