/* ============================================================
   OHIO Cybersecurity Club — shared stylesheet
   Loaded by src/index.html, src/members/index.html, and every
   page scripts/build.py generates. Edit here, not in three places.

   Colors are Ohio University's official brand values, taken from
   ohio.edu/brand/visual-identity/colors. Every text/background
   pair below passes WCAG AA; the ratios in the comments are from
   OHIO's own published compliance table.
   ============================================================ */

:root{
  /* --- OHIO primary --- */
  --elms:      #024230;   /* Under the Elms — page ground */
  --cutler:    #00694E;   /* Cutler Green   — raised panels */
  --white:     #FFFFFF;   /* Cupola White   — headings */

  /* --- OHIO secondary --- */
  --trillium:  #F9F7ED;   /* body text on green      (10:1 on elms) */
  --moss:      #A4D65E;   /* live accent, labels    (6.7:1 on elms) */
  --teal:      #B5E3D8;   /* secondary text on panels (4.7:1 on cutler) */
  --marigold:  #C4AD4D;   /* links, flag braces     (5.2:1 on elms) */

  /* Substitutes for OHIO's licensed brand fonts. Termina -> Archivo
     (wide grotesk display), P22 Mackinac -> Fraunces (wedge serif),
     plus a mono face for the security-side material. */
  --display: 'Archivo', system-ui, sans-serif;
  --serif:   'Fraunces', Georgia, serif;
  --mono:    'JetBrains Mono', ui-monospace, monospace;

  --measure: 62ch;
  --gutter: 24px;
  --max: 1080px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  background:var(--elms);
  color:var(--trillium);
  font-family:var(--serif);
  font-optical-sizing:auto;
  font-variation-settings:'SOFT' 0,'WONK' 0;
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--marigold);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--moss)}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--moss);outline-offset:3px;border-radius:2px
}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:100;background:var(--moss);color:var(--elms);
  padding:10px 16px;border-radius:3px;font-family:var(--mono);font-size:14px}

/* ---------- the flag wordmark: OHIO{...} ----------
   A capture-the-flag flag is the unit of achievement in the
   competitions this club runs, and OHIO{ } is this club's and only
   this club's. It's the logo, the headline, and the sign-off. */
.flag{font-family:var(--mono);font-weight:700;letter-spacing:-.02em;color:var(--white)}
.flag .br{color:var(--marigold)}
.flag .payload{color:var(--moss)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--elms) 92%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--cutler);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:62px}
.site-header .flag{font-size:16px}
.site-nav{display:flex;gap:26px;list-style:none;align-items:center}
.site-nav a{font-family:var(--display);font-size:13.5px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:var(--trillium);
  text-decoration:none;font-stretch:112%}
.site-nav a:hover{color:var(--moss)}
.header-cta{
  font-family:var(--display);font-size:13px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;font-stretch:112%;
  border:1px solid var(--moss);color:var(--moss);
  padding:8px 15px;border-radius:3px;text-decoration:none;white-space:nowrap;
  transition:background-color .15s,color .15s;
}
.header-cta:hover{background:var(--moss);color:var(--elms)}
@media(max-width:820px){.site-nav{display:none}}

/* ---------- eyebrow + headings ---------- */
.eyebrow{
  display:flex;align-items:center;gap:12px;
  font-family:var(--mono);font-size:12.5px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--moss);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--moss);flex:none}

h1,h2,h3{font-family:var(--display);color:var(--white);line-height:1.12;
  font-stretch:118%;letter-spacing:-.005em}
h2{font-size:clamp(26px,3.4vw,36px);font-weight:700;text-transform:uppercase;
  margin-bottom:18px}
h3{font-size:19px;font-weight:600}

.prose{max-width:var(--measure)}
.prose p+p{margin-top:16px}
.lede{font-size:19.5px;line-height:1.6;color:var(--trillium)}

/* ---------- sections ---------- */
.section{padding:74px 0;border-top:1px solid var(--cutler);scroll-margin-top:70px}

/* ---------- panels ---------- */
.panel{background:var(--cutler);border-radius:6px;padding:22px}
.panel p{color:var(--teal);font-size:15px}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font-family:var(--display);font-weight:700;font-size:14px;
  letter-spacing:.07em;text-transform:uppercase;font-stretch:112%;
  padding:13px 24px;border-radius:3px;text-decoration:none;
  border:1px solid var(--moss);color:var(--moss);
  transition:background-color .15s,color .15s;
}
.btn:hover{background:var(--moss);color:var(--elms)}
.btn.solid{background:var(--moss);color:var(--elms)}
.btn.solid:hover{background:var(--white);border-color:var(--white);color:var(--elms)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--cutler);padding:34px 0 44px}
.site-footer .wrap{display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:14px;align-items:center}
.site-footer .flag{font-size:14px}
.site-footer p{font-family:var(--mono);font-size:12.5px;color:var(--teal)}

/* ============================================================
   Blog pages (generated by scripts/build.py)
   ============================================================ */
.post-main{padding:56px 0 84px}
.post-main .wrap{max-width:760px}
.post-title{font-size:clamp(28px,4.4vw,40px);font-weight:700;
  text-transform:none;margin-bottom:12px}
.post-meta{font-family:var(--mono);font-size:13px;color:var(--moss);
  margin-bottom:34px;letter-spacing:.04em}
.back{font-family:var(--mono);font-size:13px;display:inline-block;margin-bottom:26px}

.article h2{font-size:24px;text-transform:none;margin:38px 0 12px}
.article h3{font-size:19px;margin:28px 0 10px}
.article p{margin:15px 0}
.article ul,.article ol{margin:15px 0 15px 26px}
.article li{margin:7px 0}
.article a{color:var(--moss)}
.article code{font-family:var(--mono);font-size:.87em;background:var(--cutler);
  border-radius:3px;padding:2px 6px}
.article pre{background:var(--cutler);border-radius:5px;padding:18px;
  overflow-x:auto;margin:20px 0;font-size:14px}
.article pre code{background:none;padding:0}
.article blockquote{border-left:3px solid var(--moss);padding-left:18px;
  color:var(--teal);margin:20px 0;font-style:italic}
.article img{max-width:100%;border-radius:5px}
.article table{border-collapse:collapse;width:100%;margin:20px 0;font-size:15px}
.article th,.article td{border:1px solid var(--cutler);padding:9px 12px;text-align:left}
.article th{font-family:var(--display);font-size:13px;text-transform:uppercase;
  letter-spacing:.06em;color:var(--white)}

.post-list{list-style:none}
.post-list li{border-bottom:1px solid var(--cutler);padding:24px 0}
.post-list li:last-child{border-bottom:none}
.post-list .d{font-family:var(--mono);font-size:12.5px;color:var(--moss);
  letter-spacing:.06em}
.post-list h2{font-size:22px;text-transform:none;margin:6px 0 4px}
.post-list h2 a{color:var(--white);text-decoration:none}
.post-list h2 a:hover{color:var(--moss)}
.post-list .by{font-size:15px;color:var(--teal)}
.empty-state{border:1px dashed var(--moss);border-radius:6px;padding:28px;
  max-width:var(--measure)}
.empty-state h2{font-size:21px;text-transform:none;margin-bottom:8px}
.empty-state p{color:var(--trillium);font-size:16px}