/*
Theme Name: LearnHub Education
Theme URI: https://example.com/learnhub
Author: OpenAI
Description: Responsive LearnHub education portal inspired by supplied design references. Includes class, subject, chapter and exercise views.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
Text Domain: learnhub
*/
:root{--blue:#087cf0;--navy:#082c53;--ink:#102a58;--pale:#eff9ff;--line:#cfe5f5;--yellow:#ffd52b}*{box-sizing:border-box}body{margin:0;background:#f2faff;color:var(--ink);font-family:Arial,"Noto Sans Devanagari",sans-serif;font-size:14px}a{color:inherit;text-decoration:none}.site-header{height:64px;background:#fff;display:flex;align-items:center;gap:24px;padding:8px 2.5%;border-bottom:1px solid #d8e9f6;position:sticky;top:0;z-index:10}.brand{font-size:28px;font-weight:800;color:#102b53;white-space:nowrap}.brand span{color:#087cf0}.brand small{display:block;font-size:10px;letter-spacing:.2px;color:#087cf0;font-weight:600}.brand:before{content:'📖';font-size:30px;margin-right:7px}.search{flex:1;max-width:580px;display:flex;border:1px solid #d4e3ef;border-radius:28px;padding:4px 5px 4px 18px;box-shadow:0 2px 5px #dce8f1}.search input{border:0;outline:0;flex:1;min-width:40px}.search button,.btn{background:var(--blue);color:#fff;border:0;border-radius:8px;padding:10px 15px;cursor:pointer;font-weight:700}.search button{border-radius:50%;width:38px;height:38px;padding:0}.main-nav{display:flex;gap:22px;align-items:center}.main-nav a{font-size:12px;text-align:center}.main-nav a:hover,.main-nav a.active{color:var(--blue)}.profile{font-size:25px;color:var(--blue)}.wrap{max-width:1500px;margin:auto;padding:14px 18px}.hero{width:100%;display:block;border-radius:14px;object-fit:cover;box-shadow:0 2px 6px #d2e7f5;margin-bottom:15px}.home-hero{height:auto;max-height:330px}.two-col{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:16px}.section{background:#fff;border:1px solid #d7eaf7;border-radius:12px;padding:14px;margin-bottom:14px;box-shadow:0 2px 5px #e4f1f9}.section-title{display:flex;justify-content:space-between;align-items:center;margin:0 0 12px;font-size:21px}.section-title small{display:block;font-size:12px;color:#567397;font-weight:400;margin-top:3px}.grid{display:grid;gap:12px}.classes{grid-template-columns:repeat(6,minmax(0,1fr))}.subjects{grid-template-columns:repeat(5,minmax(0,1fr))}.resources{grid-template-columns:repeat(5,minmax(0,1fr))}.card{background:linear-gradient(#fff,#fafdff);border:1px solid var(--line);border-radius:10px;padding:10px;box-shadow:0 2px 5px #eaf4fa;min-width:0}.card:hover{border-color:#7abdf5;transform:translateY(-1px)}.class-illustration{height:94px;border-radius:8px;background:linear-gradient(135deg,#e1f5ff,#fff0f8);display:flex;align-items:center;justify-content:center;font-size:48px;margin-bottom:9px}.card h3{font-size:15px;margin:5px 0}.card p{font-size:12px;line-height:1.5;color:#55708f;margin:5px 0 9px}.card .btn{display:block;text-align:center;padding:8px;font-size:12px}.resource-icon{font-size:42px;text-align:center;padding:10px;background:#eefaff;border-radius:30px;margin-bottom:10px}.sidebar .section{padding:12px}.sidebar h3{margin:0 0 12px;font-size:16px}.side-link{display:block;border:1px solid #d6e8f6;border-radius:8px;padding:10px;margin:5px 0;background:#fbfdff}.side-link:hover,.side-link.active{background:var(--blue);color:#fff}.updates li{margin:12px 0;font-size:12px;line-height:1.5}.footer{background:#05284c;color:#fff;padding:24px 2.5% 10px;margin-top:12px}.footer-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.2fr;gap:22px}.footer h3{margin:0 0 10px}.footer a{display:block;font-size:12px;margin:5px 0;color:#e0efff}.copyright{border-top:1px solid #315a7f;margin-top:18px;padding-top:10px;font-size:11px;display:flex;justify-content:space-between}.breadcrumbs{font-size:12px;margin:0 0 10px;color:#46658c}.page-heading{font-size:24px;margin:12px 0}.chapters{grid-template-columns:repeat(3,minmax(0,1fr))}.chapter-card{display:grid;grid-template-columns:100px 1fr;gap:10px}.chapter-art{height:94px;border-radius:8px;background:linear-gradient(135deg,#d9f3ff,#fff1c7);display:flex;align-items:center;justify-content:center;font-size:42px}.pill{display:inline-block;background:var(--blue);color:white;border-radius:7px;padding:4px 8px;font-size:11px}.actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.actions a{font-size:11px;padding:7px;border:1px solid #c9e2f5;border-radius:6px;color:#087cf0}.actions a:first-child{background:var(--blue);color:#fff}.exercise-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:16px}.question{padding:12px 4px;border-bottom:1px solid #e0edf6}.question label{display:block;font-weight:700;margin-bottom:9px}.question input{width:100%;padding:13px;border:1px solid #d6e7f4;border-radius:7px}.tabs{display:flex;gap:8px;margin:12px 0}.tabs a{background:white;border:1px solid var(--line);border-radius:8px;padding:12px;text-align:center;flex:1}.tabs a.active{background:var(--blue);color:white}.notice{background:#e5f5ff;border-radius:8px;padding:12px;color:#214e7b}.mobile-menu{display:none}@media(max-width:1100px){.site-header{gap:12px}.main-nav{gap:10px}.classes{grid-template-columns:repeat(4,minmax(0,1fr))}.subjects,.resources{grid-template-columns:repeat(3,minmax(0,1fr))}.two-col{grid-template-columns:minmax(0,1fr) 230px}.footer-cols{grid-template-columns:repeat(3,1fr)}}@media(max-width:760px){.site-header{height:auto;flex-wrap:wrap;padding:10px 14px}.brand{font-size:23px}.search{order:3;flex-basis:100%;max-width:none}.main-nav{margin-left:auto;gap:10px}.main-nav a{font-size:10px}.profile{display:none}.wrap{padding:10px}.two-col,.exercise-layout{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:1fr 1fr;gap:8px}.classes{grid-template-columns:repeat(2,minmax(0,1fr))}.subjects,.resources{grid-template-columns:repeat(2,minmax(0,1fr))}.chapters{grid-template-columns:1fr}.footer-cols{grid-template-columns:repeat(2,1fr)}.home-hero{height:auto}.section-title{font-size:18px}.chapter-card{grid-template-columns:84px 1fr}.chapter-art{height:82px}}@media(max-width:430px){.main-nav a:nth-child(4),.main-nav a:nth-child(5){display:none}.sidebar{grid-template-columns:1fr}.footer-cols{grid-template-columns:1fr 1fr}.class-illustration{height:78px;font-size:38px}}