/*
Theme Name: Kanjkavi Science Blog
Description: قالب وبلاگ علمی با پترن نمادهای ریاضی، شیمی، فیزیک و زیست؛ پوسته‌ی روشن/تیره، رنگ قابل انتخاب، فونت وزیرمتن و ناوبری ویژه‌ی موبایل.
Version: 1.0.0
Requires at least: 5.5
Requires PHP: 7.4
Text Domain: kanjkavi
*/

:root{--ac:#0d9488;--on:#fff;--bg:#f5f1e8;--sf:#fffdf7;--ink:#1b2422;--mut:#5f6d68;--ln:#ddd6c6;--r:18px;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px)}
:root[data-theme=dark]{--bg:#0d1312;--sf:#141d1b;--ink:#e7eeeb;--mut:#8ea19a;--ln:#24312e}
html{scroll-padding-top:env(safe-area-inset-top,0px);height:100%}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:'Vazirmatn',Tahoma,'Segoe UI',sans-serif;line-height:1.9;transition:background .3s,color .3s;padding-bottom:calc(84px + env(safe-area-inset-bottom,0px))}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
a{color:inherit}
#sym{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0}
#sym span{position:absolute;font-weight:800;color:var(--ac);opacity:.09;direction:ltr;animation:fl 14s ease-in-out infinite alternate}
@keyframes fl{to{transform:translateY(-22px) rotate(6deg)}}
.grid-bg{position:fixed;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(var(--ln) 1px,transparent 1px),linear-gradient(90deg,var(--ln) 1px,transparent 1px);background-size:42px 42px;opacity:.35;mask-image:radial-gradient(ellipse at 50% 0,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 50% 0,#000 20%,transparent 75%)}
header,main,footer{position:relative;z-index:1}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--ln)}
.hd{display:flex;align-items:center;gap:14px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.15rem;text-decoration:none}
.logo b{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--ac);color:var(--on);font-size:.95rem;direction:ltr;transform:rotate(-6deg)}
.sp{flex:1}
.search{display:flex;align-items:center;gap:8px;background:var(--sf);border:1px solid var(--ln);border-radius:999px;padding:0 14px;height:40px;min-width:220px}
.search input{border:0;background:none;outline:0;width:100%}
.search:focus-within{border-color:var(--ac);box-shadow:0 0 0 3px color-mix(in srgb,var(--ac) 25%,transparent)}
.ib{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--ln);background:var(--sf);font-size:1.1rem}
.ib:hover{border-color:var(--ac)}
.chips{display:flex;gap:8px;padding:12px 0;overflow-x:auto}
.chip{padding:5px 16px;border-radius:999px;border:1px solid var(--ln);background:var(--sf);white-space:nowrap;font-size:.92rem;transition:.2s}
.chip:hover{border-color:var(--ac)}
.chip.on{background:var(--ac);color:var(--on);border-color:var(--ac);font-weight:700}
.intro{padding:30px 0 6px}
.intro h1{margin:0;font-size:clamp(1.7rem,4.5vw,2.9rem);font-weight:900;line-height:1.4}
.intro h1 em{font-style:normal;color:var(--ac)}
.intro p{margin:6px 0 0;color:var(--mut);max-width:560px}
.feat{display:grid;grid-template-columns:1.15fr .85fr;gap:0;margin:22px 0;background:var(--sf);border:1px solid var(--ln);border-radius:26px;overflow:hidden;cursor:pointer;transition:.3s}
.feat:hover{transform:translateY(-3px);box-shadow:0 18px 40px -20px color-mix(in srgb,var(--ac) 60%,transparent)}
.feat .tx{padding:30px}
.feat h2{margin:8px 0;font-size:clamp(1.3rem,3vw,2rem);line-height:1.5}
.feat .art{background:radial-gradient(circle at 50% 50%,color-mix(in srgb,var(--ac) 22%,transparent),transparent 70%),color-mix(in srgb,var(--ac) 8%,var(--sf));display:grid;place-items:center;color:var(--ac);min-height:240px}
.tag{display:inline-block;font-size:.78rem;font-weight:700;color:var(--ac);letter-spacing:.02em}
.meta{color:var(--mut);font-size:.84rem;display:flex;gap:12px;flex-wrap:wrap}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px;padding-bottom:30px}
.card{background:var(--sf);border:1px solid var(--ln);border-radius:var(--r);padding:20px;cursor:pointer;position:relative;transition:.25s;display:flex;flex-direction:column;gap:8px;animation:up .5s both}
@keyframes up{from{opacity:0;transform:translateY(14px)}}
.card:hover{transform:translateY(-4px);border-color:var(--ac)}
.card h3{margin:0;font-size:1.08rem;line-height:1.7}
.card p{margin:0;color:var(--mut);font-size:.92rem}
.el{width:64px;height:72px;border:2px solid var(--ac);border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;direction:ltr;color:var(--ac);line-height:1;background:color-mix(in srgb,var(--ac) 7%,transparent);flex:none}
.el small{font-size:.66rem;align-self:flex-start;padding-left:6px;font-weight:700}
.el strong{font-size:1.6rem;font-weight:900;margin:3px 0}
.el i{font-style:normal;font-size:.55rem;opacity:.85}
.ct{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.empty{text-align:center;color:var(--mut);padding:50px 0}
footer{border-top:1px solid var(--ln);padding:26px 0;color:var(--mut);font-size:.88rem;text-align:center}
/* panel: popover on desktop, bottom sheet on mobile */
#pn{position:fixed;z-index:40;background:var(--sf);border:1px solid var(--ln);border-radius:20px;padding:18px;width:320px;top:calc(72px + env(safe-area-inset-top,0px));inset-inline-start:max(18px,calc((100vw - 1120px)/2 + 18px));box-shadow:0 24px 60px -20px #0006;display:none}
#pn.open{display:block;animation:up .25s}
#pn h4{margin:0 0 10px;font-size:.95rem}
#pn section{display:none}
#pn[data-p=look] .look,#pn[data-p=menu] .menu,#pn[data-p=search] .sq{display:block}
.sw{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.sw button{width:34px;height:34px;border-radius:50%;border:3px solid var(--sf);box-shadow:0 0 0 1px var(--ln)}
.sw button.on{box-shadow:0 0 0 2px var(--ink)}
input[type=color]{width:34px;height:34px;border:0;padding:0;background:none;border-radius:50%;cursor:pointer}
.seg{display:flex;background:var(--bg);border-radius:12px;padding:4px;margin-bottom:16px}
.seg button{flex:1;padding:6px;border-radius:9px}
.seg button.on{background:var(--ac);color:var(--on);font-weight:700}
.menu .chip{display:block;width:100%;text-align:right;margin-bottom:8px;padding:10px 16px;border-radius:14px}
#bar{display:none}
#bd{position:fixed;inset:0;z-index:30;background:#0008;display:none}
#bd.open{display:block}
/* reader */
#rd{position:fixed;inset:0;z-index:50;background:var(--bg);overflow-y:auto;display:none;padding-top:env(safe-area-inset-top,0px)}
#rd.open{display:block;animation:up .3s}
#pg{position:sticky;top:0;height:4px;background:var(--ac);width:0;z-index:2}
.rt{max-width:700px;margin:0 auto;padding:20px 20px 80px}
.rt h1{font-size:clamp(1.6rem,4vw,2.4rem);line-height:1.5;margin:10px 0}
.rt p{font-size:1.06rem}
.rt .fm{direction:ltr;text-align:center;font-size:1.6rem;font-weight:800;color:var(--ac);border:1px dashed var(--ac);border-radius:16px;padding:18px;margin:22px 0;background:color-mix(in srgb,var(--ac) 6%,transparent)}
.back{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;border:1px solid var(--ln);background:var(--sf);margin:14px 0}
.orb{animation:sp 9s linear infinite;transform-origin:100px 100px}
.orb2{animation-duration:13s;animation-direction:reverse}
@keyframes sp{to{transform:rotate(360deg)}}
@media (max-width:760px){
.wrap{padding:0 14px}
header .search,.dk{display:none}
.chips{display:none}
.feat{grid-template-columns:1fr}
.feat .art{order:-1;min-height:190px}
.feat .tx{padding:20px}
.cards{grid-template-columns:1fr}
#bar{display:flex;position:fixed;z-index:35;bottom:calc(10px + env(safe-area-inset-bottom,0px));inset-inline:14px;height:64px;border-radius:22px;background:color-mix(in srgb,var(--sf) 88%,transparent);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--ln);box-shadow:0 14px 34px -12px #0007;padding:6px}
#bar button{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;border-radius:16px;font-size:.7rem;color:var(--mut);line-height:1.5;transition:.2s}
#bar button span{font-size:1.25rem;line-height:1.2}
#bar button.on{background:var(--ac);color:var(--on);font-weight:700}
#pn{top:auto;bottom:0;inset-inline:0;width:100%;border-radius:26px 26px 0 0;padding:14px 20px calc(24px + env(safe-area-inset-bottom,0px));animation:none}
#pn.open{animation:sh .3s}
#pn::before{content:"";display:block;width:44px;height:5px;border-radius:9px;background:var(--ln);margin:0 auto 14px}
@keyframes sh{from{transform:translateY(100%)}}
.menu .grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.menu .chip{margin:0;text-align:center}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ===== WordPress additions ===== */
.chip{text-decoration:none;display:inline-block}
.feat{position:relative}
.card h3 a,.feat h2 a{text-decoration:none}
.card h3 a::after,.feat h2 a::after{content:"";position:absolute;inset:0}
.feat .art img{width:100%;height:100%;object-fit:cover;display:block}
.singular #pg{position:fixed;top:0;inset-inline-start:0;z-index:60}
.entry{font-size:1.06rem}
.entry img,.entry video,.entry iframe{max-width:100%;height:auto;border-radius:14px}
.entry h2,.entry h3{line-height:1.6;margin-top:1.8em}
.entry a{color:var(--ac)}
.entry blockquote{margin:1.4em 0;padding:4px 18px;border-inline-start:4px solid var(--ac);background:color-mix(in srgb,var(--ac) 6%,transparent);border-radius:12px}
.entry pre,.entry code{direction:ltr;text-align:left;background:var(--sf);border:1px solid var(--ln);border-radius:10px}
.entry pre{padding:14px;overflow-x:auto}.entry code{padding:2px 6px}.entry pre code{border:0;padding:0}
.entry table{display:block;overflow-x:auto;border-collapse:collapse}.entry td,.entry th{border:1px solid var(--ln);padding:8px 12px}
.pagination .nav-links{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;padding-bottom:30px}
.page-numbers{min-width:40px;height:40px;padding:0 12px;display:grid;place-items:center;border:1px solid var(--ln);border-radius:12px;background:var(--sf);text-decoration:none}
.page-numbers.current{background:var(--ac);color:var(--on);border-color:var(--ac)}
.post-navigation .nav-links{display:flex;justify-content:space-between;gap:12px;margin-top:36px}
.post-navigation a{text-decoration:none;color:var(--ac);font-weight:700}
.screen-reader-text{position:absolute;clip:rect(1px,1px,1px,1px);width:1px;height:1px;overflow:hidden}
.alignleft{float:left;margin:0 1em 1em 0}.alignright{float:right;margin:0 0 1em 1em}.aligncenter{display:block;margin:0 auto}
.wp-caption-text,.wp-element-caption{color:var(--mut);font-size:.85rem;text-align:center}
.comment-form input:not([type=submit]),.comment-form textarea{width:100%;background:var(--sf);border:1px solid var(--ln);border-radius:12px;padding:8px 12px}
.comment-form input[type=submit]{background:var(--ac);color:var(--on);border:0;border-radius:999px;padding:8px 22px;cursor:pointer}
.admin-bar header{top:32px}
@media(max-width:782px){.admin-bar header{top:46px}}