/* ============================================================
   DENİZ — unified design system  (/_shared/deniz.css)
   Sea-inspired scholarly theme. Dark-first + light mode.
   Loaded by every page. Self-contained (no external requests).
   ============================================================ */

/* ---- Self-hosted display font (Fraunces variable) ---- */
@font-face{
  font-family:'Fraunces';font-style:normal;font-weight:400 600;font-display:swap;
  src:url('/_shared/fonts/fraunces-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'Fraunces';font-style:normal;font-weight:400 600;font-display:swap;
  src:url('/_shared/fonts/fraunces-latinext.woff2') format('woff2');
  unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:'Fraunces';font-style:italic;font-weight:400 600;font-display:swap;
  src:url('/_shared/fonts/fraunces-italic-latin.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'Fraunces';font-style:italic;font-weight:400 600;font-display:swap;
  src:url('/_shared/fonts/fraunces-italic-latinext.woff2') format('woff2');
  unicode-range:U+0100-02AF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+2C60-2C7F,U+A720-A7FF;
}

/* ---- Design tokens ---- */
:root{
  --dz-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --dz-display:'Fraunces',Georgia,'Times New Roman',serif;
  --dz-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --dz-topbar-h:54px;
  --dz-radius:14px; --dz-radius-lg:20px; --dz-radius-sm:9px;
  --dz-maxw:1080px;
}
/* dark (default) */
:root,:root[data-theme="dark"]{
  --dz-bg:#0a0f14;
  --dz-bg-tint:radial-gradient(1100px 680px at 86% -14%,rgba(69,214,196,.10),transparent 60%),radial-gradient(900px 620px at -8% 112%,rgba(116,179,234,.07),transparent 55%);
  --dz-surface:#111a22; --dz-surface-2:#172430; --dz-surface-3:#1d2c39;
  --dz-line:#243441; --dz-line-2:#33495a;
  --dz-ink:#e9f1f4; --dz-ink-soft:#a4b6c1; --dz-ink-dim:#6e828f;
  --dz-primary:#45d6c4; --dz-primary-strong:#2bb6a6; --dz-primary-ink:#04211e;
  --dz-primary-soft:rgba(69,214,196,.13); --dz-primary-line:rgba(69,214,196,.35);
  --dz-accent:#f3b35a; --dz-accent-soft:rgba(243,179,90,.14); --dz-accent-ink:#2a1c05;
  --dz-good:#6fd18a; --dz-good-soft:rgba(111,209,138,.14);
  --dz-warn:#f0b65c; --dz-warn-soft:rgba(240,182,92,.14);
  --dz-bad:#ec8079;  --dz-bad-soft:rgba(236,128,121,.14);
  --dz-info:#79b2ea; --dz-info-soft:rgba(121,178,234,.14);
  --dz-shadow:0 18px 48px -22px rgba(0,0,0,.8);
  --dz-shadow-sm:0 2px 10px -4px rgba(0,0,0,.6);
  --dz-glass:rgba(13,20,27,.72);
  color-scheme:dark;
}
:root[data-theme="light"]{
  --dz-bg:#eef3f4;
  --dz-bg-tint:radial-gradient(1100px 680px at 86% -16%,rgba(16,141,128,.10),transparent 60%),radial-gradient(900px 620px at -8% 112%,rgba(59,111,212,.06),transparent 55%);
  --dz-surface:#ffffff; --dz-surface-2:#f5f9fa; --dz-surface-3:#eef4f5;
  --dz-line:#dde6e8; --dz-line-2:#c4d2d5;
  --dz-ink:#0e1a1f; --dz-ink-soft:#46585f; --dz-ink-dim:#728288;
  --dz-primary:#0f8d80; --dz-primary-strong:#0b6f64; --dz-primary-ink:#ffffff;
  --dz-primary-soft:rgba(15,141,128,.10); --dz-primary-line:rgba(15,141,128,.30);
  --dz-accent:#b9740f; --dz-accent-soft:rgba(185,116,15,.12); --dz-accent-ink:#fff;
  --dz-good:#1f9d52; --dz-good-soft:rgba(31,157,82,.12);
  --dz-warn:#b9740f; --dz-warn-soft:rgba(185,116,15,.12);
  --dz-bad:#c63f3f;  --dz-bad-soft:rgba(198,63,63,.10);
  --dz-info:#2563c7; --dz-info-soft:rgba(37,99,199,.10);
  --dz-shadow:0 18px 44px -24px rgba(20,45,55,.4);
  --dz-shadow-sm:0 2px 10px -4px rgba(20,45,55,.18);
  --dz-glass:rgba(255,255,255,.78);
  color-scheme:light;
}

/* ---- base (scoped enough to not fight site styles, applied via body class on themed pages) ---- */
.dz-page{
  margin:0;background:var(--dz-bg);background-image:var(--dz-bg-tint);background-attachment:fixed;
  color:var(--dz-ink);font-family:var(--dz-sans);line-height:1.6;-webkit-font-smoothing:antialiased;
  min-height:100vh;
}
.dz-page *{box-sizing:border-box}
.dz-display{font-family:var(--dz-display)}

/* ============================================================
   GLOBAL TOP BAR  (injected by deniz.js on every page)
   ============================================================ */
.dz-topbar{
  position:sticky;top:0;z-index:9000;height:var(--dz-topbar-h);
  display:flex;align-items:center;gap:12px;padding:0 16px;
  background:var(--dz-glass);backdrop-filter:saturate(1.5) blur(14px);
  border-bottom:1px solid var(--dz-line);
}
.dz-brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--dz-ink);font-weight:600;white-space:nowrap}
.dz-brand .mk{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex:none;
  background:linear-gradient(150deg,var(--dz-primary),var(--dz-primary-strong));color:var(--dz-primary-ink);
  font-family:var(--dz-display);font-size:18px;font-weight:600;box-shadow:0 2px 10px -2px var(--dz-primary)}
.dz-brand .bt{font-family:var(--dz-display);font-size:17px;letter-spacing:-.01em}
.dz-brand .bt small{font-family:var(--dz-sans);font-weight:500;color:var(--dz-ink-dim);font-size:11px;
  letter-spacing:.04em;display:block;line-height:1;margin-top:1px}
.dz-spacer{flex:1}

/* level chip */
.dz-level{display:flex;align-items:center;gap:9px;padding:5px 12px 5px 7px;border-radius:999px;
  border:1px solid var(--dz-line);background:var(--dz-surface);text-decoration:none;color:var(--dz-ink)}
.dz-level:hover{border-color:var(--dz-primary-line)}
.dz-level .lv{width:30px;height:30px;border-radius:50%;flex:none;display:grid;place-items:center;
  font-weight:800;font-size:13px;color:var(--dz-accent-ink);
  background:conic-gradient(var(--dz-accent) calc(var(--p,0)*1%),var(--dz-line) 0);position:relative}
.dz-level .lv::after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--dz-surface)}
.dz-level .lv b{position:relative;z-index:1;color:var(--dz-ink)}
.dz-level .lx{display:flex;flex-direction:column;line-height:1.15;min-width:64px}
.dz-level .lx .t{font-size:11px;color:var(--dz-ink-dim);font-weight:600}
.dz-level .lx .xpbar{height:5px;border-radius:4px;background:var(--dz-line);overflow:hidden;margin-top:3px}
.dz-level .lx .xpbar i{display:block;height:100%;width:0;border-radius:4px;
  background:linear-gradient(90deg,var(--dz-accent),var(--dz-primary));transition:width .5s ease}

/* user menu */
.dz-user{position:relative}
.dz-user>button{display:flex;align-items:center;gap:8px;border:1px solid var(--dz-line);background:var(--dz-surface);
  color:var(--dz-ink);border-radius:999px;padding:4px 6px 4px 4px;cursor:pointer;font-family:inherit;font-size:13px}
.dz-user>button:hover{border-color:var(--dz-primary-line)}
.dz-ava{width:28px;height:28px;border-radius:50%;flex:none;display:grid;place-items:center;font-weight:700;font-size:13px;
  background:linear-gradient(150deg,var(--dz-primary),var(--dz-info));color:#04211e}
.dz-uname{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.dz-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:188px;background:var(--dz-surface);
  border:1px solid var(--dz-line);border-radius:12px;box-shadow:var(--dz-shadow);padding:6px;display:none;z-index:9100}
.dz-menu.open{display:block;animation:dz-pop .15s ease}
.dz-menu a,.dz-menu button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;border:0;background:none;
  color:var(--dz-ink);padding:9px 11px;border-radius:8px;cursor:pointer;font-family:inherit;font-size:14px;text-decoration:none}
.dz-menu a:hover,.dz-menu button:hover{background:var(--dz-surface-2)}
.dz-menu .sep{height:1px;background:var(--dz-line);margin:5px 4px}
.dz-icon{width:36px;height:36px;border-radius:9px;border:1px solid var(--dz-line);background:var(--dz-surface);
  color:var(--dz-ink);cursor:pointer;display:grid;place-items:center;font-size:15px;flex:none}
.dz-icon:hover{border-color:var(--dz-primary-line);color:var(--dz-primary-strong)}

/* ---- toast (xp / level up) ---- */
.dz-toasts{position:fixed;right:16px;bottom:16px;z-index:9500;display:flex;flex-direction:column;gap:8px;align-items:flex-end}
.dz-toast{background:var(--dz-surface);border:1px solid var(--dz-line);border-left:4px solid var(--dz-accent);
  border-radius:12px;padding:10px 15px;box-shadow:var(--dz-shadow);font-size:14px;font-weight:600;color:var(--dz-ink);
  display:flex;align-items:center;gap:9px;animation:dz-slide .3s ease}
.dz-toast.lvl{border-left-color:var(--dz-primary)}
.dz-toast .em{font-size:18px}
@keyframes dz-slide{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}
@keyframes dz-pop{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ============================================================
   COMPONENTS  (use anywhere)
   ============================================================ */
.dz-wrap{max-width:var(--dz-maxw);margin:0 auto;padding:0 20px}
.dz-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:11px;
  padding:11px 18px;font-weight:650;font-size:14.5px;font-family:inherit;cursor:pointer;border:1px solid transparent;
  text-decoration:none;transition:.15s;line-height:1}
.dz-btn.primary{background:var(--dz-primary);color:var(--dz-primary-ink);border-color:var(--dz-primary)}
.dz-btn.primary:hover{background:var(--dz-primary-strong);border-color:var(--dz-primary-strong)}
.dz-btn.ghost{background:transparent;color:var(--dz-ink);border-color:var(--dz-line)}
.dz-btn.ghost:hover{border-color:var(--dz-primary-line);color:var(--dz-primary-strong)}
.dz-btn.block{width:100%}
.dz-card{background:var(--dz-surface);border:1px solid var(--dz-line);border-radius:var(--dz-radius-lg);
  padding:22px;box-shadow:var(--dz-shadow-sm)}
.dz-field{display:block;margin-bottom:15px}
.dz-field label{display:block;font-size:13px;font-weight:650;color:var(--dz-ink-soft);margin-bottom:6px}
.dz-input{width:100%;padding:12px 14px;border-radius:11px;border:1px solid var(--dz-line);
  background:var(--dz-surface-2);color:var(--dz-ink);font-size:15px;font-family:inherit}
.dz-input:focus{outline:none;border-color:var(--dz-primary);box-shadow:0 0 0 3px var(--dz-primary-soft)}
.dz-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:4px 10px;
  border-radius:999px;background:var(--dz-primary-soft);color:var(--dz-primary-strong)}
.dz-badge.accent{background:var(--dz-accent-soft);color:var(--dz-accent)}
.dz-note{border-left:4px solid var(--dz-primary);background:var(--dz-primary-soft);border-radius:0 10px 10px 0;
  padding:11px 15px;font-size:14px;color:var(--dz-ink-soft)}
.dz-note.bad{border-color:var(--dz-bad);background:var(--dz-bad-soft)}
.dz-error{color:var(--dz-bad);font-size:13.5px;font-weight:600;margin:0 0 12px}
.dz-muted{color:var(--dz-ink-dim)}

/* auth pages */
.dz-auth{min-height:calc(100vh - var(--dz-topbar-h));display:grid;place-items:center;padding:32px 18px}
.dz-auth .box{width:100%;max-width:404px}
.dz-auth h1{font-family:var(--dz-display);font-weight:500;font-size:34px;letter-spacing:-.02em;margin:0 0 4px}
.dz-auth .sub{color:var(--dz-ink-soft);margin:0 0 22px}
.dz-auth .alt{text-align:center;margin-top:16px;color:var(--dz-ink-dim);font-size:14px}

/* hub / course tiles */
.dz-hero{padding:46px 0 26px}
.dz-hero .kick{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--dz-ink-dim);font-weight:700}
.dz-hero h1{font-family:var(--dz-display);font-weight:500;font-size:clamp(2.4rem,6vw,3.7rem);letter-spacing:-.025em;
  line-height:1.0;margin:.12em 0 .2em}
.dz-hero h1 .dot{color:var(--dz-primary)}
.dz-hero .lead{color:var(--dz-ink-soft);max-width:56ch;margin:0;font-size:1.04rem}
.dz-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin:8px 0 60px}
.dz-tile{display:flex;flex-direction:column;gap:9px;text-decoration:none;color:inherit;background:var(--dz-surface);
  border:1px solid var(--dz-line);border-radius:var(--dz-radius-lg);padding:20px;transition:.16s;position:relative;overflow:hidden}
.dz-tile:hover{border-color:var(--dz-primary-line);transform:translateY(-2px);box-shadow:var(--dz-shadow)}
.dz-tile .tag{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--dz-ink-dim);font-weight:700}
.dz-tile .tag.classic{color:var(--dz-accent)}
.dz-tile .nm{font-family:var(--dz-display);font-size:1.42rem;font-weight:500;letter-spacing:-.01em}
.dz-tile .ds{color:var(--dz-ink-soft);font-size:.92rem;flex:1}
.dz-tile .pg{height:6px;border-radius:5px;background:var(--dz-line);overflow:hidden;margin-top:4px}
.dz-tile .pg i{display:block;height:100%;background:linear-gradient(90deg,var(--dz-primary),var(--dz-info));width:0;transition:width .6s}
.dz-tile .pgt{font-size:11.5px;color:var(--dz-ink-dim);font-weight:600;display:flex;justify-content:space-between}
.dz-tile .arr{position:absolute;right:18px;top:18px;color:var(--dz-ink-dim);transition:.16s}
.dz-tile:hover .arr{transform:translateX(3px);color:var(--dz-primary-strong)}

/* profile / karne */
.dz-stat{background:var(--dz-surface);border:1px solid var(--dz-line);border-radius:var(--dz-radius);padding:16px 18px}
.dz-stat .v{font-family:var(--dz-display);font-size:1.9rem;font-weight:600;color:var(--dz-primary-strong);line-height:1}
.dz-stat .l{font-size:12.5px;color:var(--dz-ink-dim);font-weight:600;margin-top:4px}

@media(max-width:560px){
  .dz-brand .bt small{display:none}
  .dz-level .lx{min-width:50px}
  .dz-uname{display:none}
  .dz-topbar{gap:8px;padding:0 12px}
}