/*
Theme Name: MateInfo
Description: Temă ușoară pentru mateinfo.ro – meniu ca pe site-ul vechi, prima pagină fără imagini, formule LaTeX.
Version: 1.6.0
Author: Math Academy
Text Domain: mateinfo
Requires at least: 6.3
Requires PHP: 7.4
*/
:root{
  /* design system academiademate.ro */
  --orange:#e8590c; --orange-dark:#b84008; --orange-light:#fef0e7; --orange-mid:#f7c49a;
  --bg:#faf9f6; --white:#fff; --border-light:#f0ede6; --ink:#1a1a18; --gray:#6b6a67;
  --mi-accent:var(--orange); --mi-accent-dark:var(--orange-dark); --mi-text:var(--ink); --mi-muted:var(--gray);
  --mi-line:#ebe7de; --mi-head:var(--ink); --mi-gold:var(--orange);
  --mi-font:"DM Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mi-display:"Sora","DM Sans",system-ui,sans-serif;
  --r:16px; --shadow:0 1px 2px rgba(26,26,24,.04),0 8px 24px rgba(26,26,24,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--mi-font);font-size:16px;line-height:1.6;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--mi-display);letter-spacing:-.015em;line-height:1.2;color:var(--ink)}
a{color:var(--orange)}
a:hover{color:var(--orange-dark)}
img{max-width:100%;height:auto}
::selection{background:var(--orange-mid)}
.screen-reader-text{position:absolute!important;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden}
.skip-link:focus{position:static;clip:auto;width:auto;height:auto;padding:.5rem;background:#fff}

/* ---------- antet ---------- */
.mi-top{background:var(--ink);color:#fff}
.mi-top-in{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:1rem;padding:.8rem 1.25rem}
.mi-brand{color:#fff;text-decoration:none;display:flex;flex-direction:column;line-height:1.1}
.mi-brand:hover{color:#fff}
.mi-brand b{font-family:var(--mi-display);font-weight:800;font-size:1.5rem;letter-spacing:-.02em}
.mi-brand b span{color:var(--orange)}
.mi-brand small{font-size:.76rem;color:#b9b7b1;margin-top:.15rem}
.mi-top form{margin-left:auto;display:flex;background:#2a2a27;border-radius:999px;padding:3px;border:1px solid #3a3a36}
.mi-top input[type=search]{width:min(300px,40vw);padding:.45rem .9rem;border:0;background:transparent;color:#fff;font:inherit;font-size:.92rem;outline:0}
.mi-top input::placeholder{color:#9d9b95}
.mi-top button{border:0;border-radius:999px;background:var(--orange);color:#fff;font-weight:600;padding:.45rem 1rem;cursor:pointer;font:inherit;font-size:.9rem}
.mi-top button:hover{background:var(--orange-dark)}
.mi-burger{display:none;margin-left:.5rem;background:none;border:1px solid #4a4a45;color:#fff;border-radius:10px;padding:.4rem .7rem;font:inherit}

/* ---------- meniu ---------- */
.mi-nav{background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:50}
.mi-nav>ul{max-width:1200px;margin:0 auto;padding:0 1rem;list-style:none;display:flex;flex-wrap:wrap}
.mi-nav li{position:relative;list-style:none}
.mi-nav a{display:block;text-decoration:none;color:var(--ink)}
.mi-nav>ul>li>a{padding:.85rem .8rem;font-weight:600;font-size:.93rem;position:relative}
.mi-nav>ul>li>a::before{content:"";position:absolute;left:.8rem;right:.8rem;bottom:.45rem;height:2px;border-radius:2px;background:var(--orange);transform:scaleX(0);transition:transform .2s}
.mi-nav>ul>li:hover>a::before,.mi-nav>ul>li:focus-within>a::before{transform:scaleX(1)}
.mi-nav>ul>li>a:hover{color:var(--orange)}
.mi-nav .menu-item-has-children>a::after{content:"";display:inline-block;width:6px;height:6px;margin:0 0 3px 7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);opacity:.55}
.mi-nav .sub-menu{display:none;position:absolute;left:0;top:100%;min-width:270px;background:#fff;border:1px solid var(--border-light);border-radius:14px;box-shadow:0 18px 40px rgba(26,26,24,.12);padding:.5rem;margin:0}
.mi-nav li:hover>.sub-menu,.mi-nav li:focus-within>.sub-menu{display:block}
.mi-nav .sub-menu a{padding:.5rem .75rem;border-radius:9px;font-size:.92rem;color:#3a3a36}
.mi-nav .sub-menu a:hover{background:var(--orange-light);color:var(--orange-dark)}
.mi-nav>ul>li.mi-mega>.sub-menu{display:none;grid-template-columns:repeat(4,minmax(200px,1fr));gap:.25rem 1.25rem;min-width:min(920px,92vw);padding:1.1rem}
.mi-nav>ul>li.mi-mega:hover>.sub-menu,.mi-nav>ul>li.mi-mega:focus-within>.sub-menu{display:grid}
.mi-nav li.mi-mega>.sub-menu>li>a{font-family:var(--mi-display);font-weight:700;color:var(--orange);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;background:none;padding-bottom:.35rem}
.mi-nav li.mi-mega .sub-menu .sub-menu{display:block;position:static;box-shadow:none;border:0;padding:0;min-width:0}
.mi-nav li.mi-mega .sub-menu .menu-item-has-children>a::after{content:none}

/* ---------- conținut ---------- */
.mi-main{max-width:1160px;margin:0 auto;padding:1.25rem 1.25rem 3.5rem}
.mi-page{background:#fff;border:1px solid var(--border-light);border-radius:20px;padding:1.75rem clamp(1.1rem,3.5vw,2.75rem);box-shadow:var(--shadow)}
.mi-page h1{font-size:clamp(1.5rem,2.6vw,2.15rem);font-weight:800;margin:.1rem 0 1.1rem}
.mi-content{font-size:1.05rem;overflow-wrap:break-word}
.mi-content p{margin:.55em 0}
.mi-content h2,.mi-content h3{margin:1.4em 0 .5em}
.mi-content table{border-collapse:collapse;max-width:100%;display:block;overflow-x:auto}
.mi-content td,.mi-content th{border:1px solid var(--border-light);padding:.4rem .6rem}
.mi-content img{display:inline-block;vertical-align:middle}
.mi-content mjx-container[display=true]{overflow-x:auto;overflow-y:hidden}
.mi-lista{columns:2 320px;column-gap:2rem;padding-left:1.1rem}
.mi-lista li{break-inside:avoid;padding:.25rem 0}
.mi-lista li::marker{color:var(--orange)}
.mib-wrap{padding:0}
.mib-head h1{font-weight:800}

/* biblioteca în stilul academiademate */
.mib-card{border-radius:var(--r);border-color:var(--border-light);box-shadow:var(--shadow);transition:transform .18s,border-color .18s,box-shadow .18s}
.mib-card:hover{transform:translateY(-3px);border-color:var(--orange-mid);box-shadow:0 14px 30px rgba(232,89,12,.12)}
.mib-card strong{font-family:var(--mi-display);font-weight:700;font-size:.98rem}
.mib-docs{background:#fff;border:1px solid var(--border-light);border-radius:20px;padding:.5rem 1.25rem 1rem;box-shadow:var(--shadow)}
.mib-filter input{border-radius:999px;border-color:var(--border-light);background:var(--bg);padding:.65rem 1.1rem}
.mib-filter input:focus{outline:2px solid var(--orange-mid);border-color:var(--orange)}
.mib-year{font-family:var(--mi-display);border-bottom:0;display:flex;align-items:baseline;gap:.5rem}
.mib-year::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);display:inline-block;transform:translateY(-2px)}
.mib-item{border-bottom-color:var(--border-light);border-radius:10px;padding:.6rem .5rem}
.mib-item:hover{background:var(--orange-light)}
.mib-dl,.mib-btn{border-radius:999px!important;font-weight:600}
.mib-dl{background:var(--orange)}
.mib-ext{border-radius:6px}
.mib-crumbs a:hover{color:var(--orange)}

/* ---------- prima pagină ---------- */
.mi-hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;border-radius:24px;padding:clamp(1.75rem,5vw,3.5rem);margin:.75rem 0 2rem}
.mi-hero::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(232,89,12,.55),rgba(232,89,12,0) 70%)}
.mi-hero::after{content:"∑ √ π ∫ ∞";position:absolute;right:2.5rem;bottom:1.5rem;font-family:var(--mi-display);font-size:clamp(2rem,6vw,4.5rem);font-weight:800;letter-spacing:.15em;color:rgba(255,255,255,.06);pointer-events:none}
.mi-hero>*{position:relative}
.mi-pill{display:inline-flex;align-items:center;gap:.45rem;background:rgba(232,89,12,.16);color:var(--orange-mid);border:1px solid rgba(232,89,12,.35);border-radius:999px;padding:.3rem .8rem;font-size:.82rem;font-weight:600;margin-bottom:1rem}
.mi-pill i{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 0 rgba(232,89,12,.6);animation:mi-pulse 2s infinite}
@keyframes mi-pulse{70%{box-shadow:0 0 0 8px rgba(232,89,12,0)}100%{box-shadow:0 0 0 0 rgba(232,89,12,0)}}
.mi-hero h1{color:#fff;margin:0 0 .6rem;font-size:clamp(1.75rem,4vw,3rem);font-weight:800;max-width:20ch}
.mi-hero h1 em{font-style:normal;color:var(--orange)}
.mi-hero p{margin:0 0 1.5rem;max-width:58ch;color:#cfcdc7;font-size:1.08rem}
.mi-hero form{display:flex;max-width:620px;background:#fff;border-radius:999px;padding:5px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.mi-hero input{flex:1;padding:.75rem 1.1rem;border:0;border-radius:999px;font:inherit;font-size:1.02rem;outline:0;min-width:0}
.mi-hero button{border:0;border-radius:999px;background:var(--orange);color:#fff;font-weight:700;padding:0 1.5rem;font:inherit;font-weight:700;cursor:pointer}
.mi-hero button:hover{background:var(--orange-dark)}
.mi-quick{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.1rem}
.mi-quick a{color:#fff;border:1px solid #4a4a45;padding:.35rem .9rem;border-radius:999px;text-decoration:none;font-size:.88rem;transition:background .15s,border-color .15s}
.mi-quick a:hover{background:var(--orange);border-color:var(--orange);color:#fff}
.mi-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin:2rem 0 0;padding-top:1.5rem;border-top:1px solid #34342f}
.mi-stats b{display:block;font-family:var(--mi-display);font-weight:800;font-size:clamp(1.4rem,3vw,2rem);color:#fff}
.mi-stats span{font-size:.85rem;color:#a9a7a0}
.mi-sec{margin:2.5rem 0}
.mi-sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin-bottom:1rem}
.mi-sec h2{font-size:clamp(1.3rem,2.2vw,1.65rem);font-weight:800;margin:0}
.mi-sec h2 small{display:block;font-family:var(--mi-font);font-size:.82rem;font-weight:600;color:var(--orange);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.25rem}
.mi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}
@media (max-width:1100px){.mi-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:760px){.mi-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:440px){.mi-grid{grid-template-columns:1fr}}
.mi-tile{position:relative;display:flex;flex-direction:column;gap:.35rem;background:#fff;border:1px solid var(--border-light);border-radius:var(--r);padding:1.1rem 1.15rem 1.15rem;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .18s,border-color .18s,box-shadow .18s;overflow:hidden}
.mi-tile::after{content:"→";position:absolute;right:1rem;bottom:.9rem;color:var(--orange);font-weight:700;opacity:0;transform:translateX(-6px);transition:all .18s}
.mi-tile:hover{transform:translateY(-3px);border-color:var(--orange-mid);box-shadow:0 14px 30px rgba(232,89,12,.12);color:var(--ink)}
.mi-tile:hover::after{opacity:1;transform:none}
.mi-tile .ico{width:42px;height:42px;border-radius:12px;background:var(--orange-light);color:var(--orange);display:grid;place-items:center;font-family:var(--mi-display);font-weight:800;font-size:1.05rem;margin-bottom:.35rem}
.mi-tile b{font-family:var(--mi-display);font-weight:700;font-size:1rem;line-height:1.3}
.mi-tile span{font-size:.88rem;color:var(--gray);padding-right:1.2rem}
.mi-tile.feat{background:linear-gradient(135deg,var(--orange) 0%,#f07a35 100%);border:0;color:#fff}
.mi-tile.feat .ico{background:rgba(255,255,255,.2);color:#fff}
.mi-tile.feat b{font-size:1.2rem;color:#fff}.mi-tile.feat span{color:#ffe7d8}.mi-tile.feat::after{color:#fff}
.mi-cta{display:grid;grid-template-columns:1.4fr 1fr;align-items:center;gap:1.5rem;background:var(--orange-light);border:1px solid var(--orange-mid);border-radius:24px;padding:clamp(1.5rem,4vw,2.5rem);margin:3rem 0 1rem}
.mi-cta h2{margin:0 0 .5rem;font-size:clamp(1.3rem,2.4vw,1.8rem);font-weight:800}
.mi-cta p{margin:0;color:#4a4943}
.mi-cta .btns{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:flex-end}
.mi-btn{display:inline-block;padding:.8rem 1.4rem;border-radius:999px;background:var(--orange);color:#fff!important;font-weight:700;text-decoration:none;transition:background .15s,transform .15s}
.mi-btn:hover{background:var(--orange-dark);transform:translateY(-1px)}
.mi-btn.ghost{background:#fff;color:var(--ink)!important;border:1px solid var(--orange-mid)}
.mi-btn.ghost:hover{background:#fff;border-color:var(--orange)}

/* ---------- subsol ---------- */
.mi-foot{background:var(--ink);color:#b9b7b1;margin-top:3rem}
.mi-foot-in{max-width:1200px;margin:0 auto;padding:2.5rem 1.25rem;display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem;font-size:.93rem}
.mi-foot a{color:#e9e7e1;text-decoration:none}.mi-foot a:hover{color:var(--orange)}
.mi-foot h3{color:#fff;font-size:1rem;margin:0 0 .7rem}
.mi-foot ul{list-style:none;margin:0;padding:0}.mi-foot li{padding:.2rem 0}
.mi-copy{text-align:center;font-size:.82rem;padding:1rem;border-top:1px solid #2e2e2a}

@media (max-width:900px){
  .mi-burger{display:block}
  .mi-top form{order:3;width:100%;margin:0}.mi-top-in{flex-wrap:wrap}.mi-top input[type=search]{width:100%}
  .mi-nav{position:static}
  .mi-nav>ul{display:none;flex-direction:column;padding:.5rem 1rem}
  .mi-nav.open>ul{display:flex}
  .mi-nav>ul>li>a::before{display:none}
  .mi-nav .sub-menu,.mi-nav>ul>li.mi-mega>.sub-menu{position:static;display:none;box-shadow:none;border:0;min-width:0;padding:0 0 0 .75rem;grid-template-columns:1fr}
  .mi-nav li.open>.sub-menu,.mi-nav>ul>li.mi-mega.open>.sub-menu{display:block}
  .mi-nav li:hover>.sub-menu{display:none}.mi-nav li.open:hover>.sub-menu{display:block}
  .mi-foot-in,.mi-cta{grid-template-columns:1fr}.mi-cta .btns{justify-content:flex-start}
  .mi-stats{grid-template-columns:repeat(2,1fr)}
  .mi-tile.feat{grid-column:auto}
}
.mib-filter label{flex:1;max-width:520px}.mib-filter input{width:100%}

/* ---------- meniu ca butoane (v1.2) ---------- */
.mi-nav>ul{justify-content:center;gap:.45rem;padding:.6rem 1rem}
.mi-nav>ul>li>a{padding:.45rem .95rem;border:1.5px solid var(--orange-mid);border-radius:999px;background:#fff;font-size:.9rem;line-height:1.25;white-space:nowrap;transition:background .15s,color .15s,border-color .15s,box-shadow .15s}
.mi-nav>ul>li>a::before{display:none}
.mi-nav>ul>li>a:hover,.mi-nav>ul>li:focus-within>a,.mi-nav>ul>li.open>a{background:var(--orange);border-color:var(--orange);color:#fff;box-shadow:0 4px 12px rgba(232,89,12,.25)}
.mi-nav>ul>li.current-menu-item>a,.mi-nav>ul>li.current-menu-ancestor>a{background:var(--orange-light);border-color:var(--orange)}
.mi-nav .sub-menu{top:calc(100% + 6px)}
.mi-nav>ul>li::after{content:"";position:absolute;left:0;right:0;top:100%;height:8px}
@media (min-width:901px) and (max-width:1180px){.mi-nav>ul>li>a{padding:.4rem .7rem;font-size:.85rem}}
@media (max-width:900px){
  .mi-burger{display:none}
  .mi-nav>ul,.mi-nav.open>ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.45rem;padding:.7rem .8rem}
  .mi-nav>ul>li>a{display:flex;align-items:center;justify-content:center;text-align:center;white-space:normal;min-height:2.6rem;padding:.4rem .6rem;font-size:.88rem}
  .mi-nav>ul>li.open{grid-column:1/-1}
  .mi-nav>ul>li.open>.sub-menu{display:block;background:#fff;border:1px solid var(--border-light);border-radius:14px;margin-top:.45rem;padding:.4rem}
  .mi-nav>ul>li.mi-mega.open>.sub-menu{display:block}
  .mi-nav li.mi-mega>.sub-menu>li>a{padding-top:.6rem}
  .mi-nav .sub-menu a{padding:.55rem .7rem}
}
@media (max-width:360px){.mi-nav>ul>li>a{font-size:.82rem}}
@media (min-width:901px){.mi-nav>ul{gap:.35rem;max-width:1280px;padding:.6rem .75rem}.mi-nav>ul>li>a{padding:.42rem .78rem;font-size:.87rem}.mi-nav .menu-item-has-children>a::after{margin-left:5px}}
@media (min-width:901px) and (max-width:1180px){.mi-nav>ul>li>a{padding:.38rem .6rem;font-size:.82rem}}
@media (max-width:900px){.mi-nav>ul>li:last-child:nth-child(odd){grid-column:1/-1}}
@media (min-width:901px) and (max-width:1100px){.mi-nav>ul{gap:.25rem;padding:.55rem .4rem}.mi-nav>ul>li>a{padding:.36rem .5rem;font-size:.79rem}.mi-nav .menu-item-has-children>a::after{margin-left:4px;width:5px;height:5px}}

/* ---------- siglă + încadrare butoane (v1.3) ---------- */
.mi-top-in{padding:.55rem 1.25rem}
.mi-brand{color:#fff;display:block;line-height:0}
.mi-brand svg{height:62px;width:auto;display:block}
.mi-nav>ul>li>a{border:2px solid #f2a46e;box-shadow:0 1px 0 rgba(26,26,24,.06),inset 0 0 0 1px rgba(255,255,255,.6)}
.mi-nav>ul>li>a:hover,.mi-nav>ul>li:focus-within>a,.mi-nav>ul>li.open>a{border-color:var(--orange)}
@media (max-width:900px){.mi-brand svg{height:50px}.mi-top-in{justify-content:center}.mi-brand{margin:0 auto}}
.mi-brand svg{height:74px}@media (max-width:900px){.mi-brand svg{height:60px}}

/* sigla încărcată din Personalizare */
.mi-brand-custom a{display:block;line-height:0}
.mi-brand-custom img{height:74px;width:auto;max-width:min(360px,70vw);display:block;object-fit:contain}
@media (max-width:900px){.mi-brand-custom img{height:60px}}
/* antet deschis */
.mi-header-light .mi-top{background:#fff;color:var(--ink);border-bottom:1px solid var(--border-light)}
.mi-header-light .mi-brand{color:var(--ink)}
.mi-header-light .mi-top form{background:var(--bg);border-color:var(--border-light)}
.mi-header-light .mi-top input[type=search]{color:var(--ink)}
.mi-header-light .mi-top input::placeholder{color:var(--gray)}
.mi-header-light .mi-nav{background:var(--bg);border-top:3px solid var(--orange)}

/* ---------- fundal: portocaliu deschis cu pătrățele (foaie de matematică) ---------- */
:root{--bg:#fef3ea;--grid:rgba(232,89,12,.085)}
body{
  background-color:var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:22px 22px;
  background-position:-1px -1px;
}
.mi-nav{background:rgba(254,243,234,.93)}
.mi-header-light .mi-nav{background:rgba(254,243,234,.95)}
.mib-filter input,.mib-search input{background:#fff}
/* v1.6: fundal alb cu pătrățele fine, foarte deschise */
:root{--bg:#ffffff;--grid:rgba(232,89,12,.06)}
body{background-size:24px 24px}
.mi-nav,.mi-header-light .mi-nav{background:rgba(255,255,255,.94)}
.mi-page,.mib-docs,.mi-tile,.mib-card,.mi-box{border-color:#efe6dc}
.mib-filter input,.mib-search input{background:#fdf9f5}