/*
Theme Name: Ngoại ngữ MentorVN (Hello Child)
Theme URI: https://ngoaingu.mentorvn.com
Description: Child theme cho Hello Elementor — giao diện giáo dục cho ngoaingu.mentorvn.com, bảng màu xanh chàm + cam theo phong cách 9Study.
Author: Ngọc Duy
Template: hello-elementor
Version: 1.1.0
Text Domain: ngoaingu-child
*/

/* ============ TOKENS ============ */
:root{
  --brand:#3D4AEF;
  --brand-dark:#2830BE;
  --brand-2:#4B87F4;
  --tint:#EBF1FF;
  --tint-soft:#F8FAFF;
  --amber:#FE9A00;
  --amber-dark:#E07F00;
  --amber-soft:#FFF7ED;
  --green:#1EC95B;
  --ink:#131313;
  --navy:#0F1730;
  --night:#141A6E;
  --sky:#57B6F7;
  --brand-gradient:linear-gradient(90deg,#3B44EF,#57B6F7 158.93%);
  --warm-gradient:linear-gradient(90deg,#FE9A00 31.6%,#FFBE5A);
  --ink-2:#0F1730;
  --gray:#5E7595;
  --gray-2:#94A3B8;
  --line:#EAEDF4;
  --bg-soft:#F2F7FF;
  --white:#FFFFFF;
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 2px 10px rgba(15,23,48,.05);
  --shadow:0 12px 32px rgba(61,74,239,.10);
  --shadow-lg:0 24px 56px rgba(61,74,239,.16);
  --maxw:1180px;
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --font-head:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}

/* ============ BASE ============ */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body.ta{margin:0;font-family:var(--font);font-size:16px;color:var(--ink);background:var(--white);line-height:1.65;-webkit-font-smoothing:antialiased}
body.ta h1,body.ta h2,body.ta h3,body.ta h4{font-family:var(--font-head);color:var(--ink);line-height:1.25;margin:0 0 .5em;font-weight:800;letter-spacing:-.02em}
body.ta p{margin:0 0 1em}
body.ta a{color:var(--brand);text-decoration:none}
body.ta a:hover{color:var(--brand-dark)}
body.ta img{max-width:100%;height:auto}
.ta-wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.ta-wrap.narrow{max-width:820px}
.ta-ic{width:1.25em;height:1.25em;flex:none;vertical-align:-.25em}
.ta-skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:8px 14px;z-index:1000}
.ta-skip:focus{left:8px;top:8px;color:#fff}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}

/* ============ BUTTONS ============ */
.ta-btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;padding:.7em 1.3em;border-radius:999px;font-weight:600;font-size:15px;line-height:1.2;border:2px solid transparent;transition:transform .15s,box-shadow .15s,background .15s,color .15s;white-space:nowrap;cursor:pointer}
.ta-btn:hover{transform:translateY(-1px)}
.ta-btn.primary{background:var(--brand-gradient);color:#fff}
.ta-btn.primary:hover{background:var(--brand-gradient);color:#fff;box-shadow:var(--shadow);filter:brightness(1.06)}
.ta-btn.ghost{background:transparent;color:var(--brand);border-color:var(--tint)}
.ta-btn.ghost:hover{border-color:var(--brand);color:var(--brand)}
.ta-btn.accent{background:var(--warm-gradient);color:#fff}
.ta-btn.accent:hover{background:var(--warm-gradient);color:#fff;filter:brightness(1.05)}
.ta-btn.lg{padding:.9em 1.6em;font-size:16px}
.ta-btn.sm{padding:.55em 1.1em;font-size:14px}
.ta-link{display:inline-flex;align-items:center;gap:.4em;font-weight:600}

/* ============ TOPBAR + HEADER ============ */
.ta-topbar{background:var(--night);color:#C6D2FF;font-size:13px}
.ta-topbar .ta-wrap{display:flex;justify-content:space-between;align-items:center;min-height:36px;gap:16px}
.ta-topbar a{color:#C6D2FF!important;display:inline-flex;align-items:center;gap:6px}
.ta-topbar a:hover{color:#fff!important}
.ta-topbar .tb-left,.ta-topbar .tb-right{display:flex;gap:18px}
.ta-topbar .ta-ic{width:14px;height:14px}

.ta-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.admin-bar .ta-header{top:32px}
.ta-header .ta-wrap{display:flex;align-items:center;gap:24px;min-height:72px}
.ta-logo{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--navy)!important}
body.ta .ta-logo img{display:block;height:52px;width:auto;max-width:none}
.ta-logo .txt{display:flex;flex-direction:column;line-height:1.05}
.ta-logo .txt small{font-size:11px;font-weight:800;letter-spacing:.24em;text-transform:uppercase;color:var(--brand)}
.ta-logo .txt b{font-family:var(--font-head);font-weight:800;font-size:23px;letter-spacing:-.02em;color:var(--navy)}
.ta-logo .txt em{font-style:normal;font-size:12.5px;margin-top:4px;color:#B0B6C6}
.ta-logo.light .txt small{color:var(--sky)}
.ta-logo.light .txt b{color:#fff}

.ta-nav{display:flex;align-items:center;gap:20px;flex:1;justify-content:flex-end}
.ta-menu{list-style:none;margin:0;padding:0;display:flex;gap:4px}
.ta-menu li{position:relative}
.ta-menu a{display:block;padding:10px 14px;border-radius:10px;color:var(--ink-2)!important;font-weight:500;font-size:15px}
.ta-menu > li > a:hover,.ta-menu .current-menu-item > a,.ta-menu .current-menu-ancestor > a{color:var(--brand)!important;background:var(--tint-soft)}
.ta-menu .menu-item-has-children > a::after{content:"";display:inline-block;width:6px;height:6px;margin-left:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-3px)}
/* Link neo (#lo-trinh…) không tính là trang đang mở */
.ta-menu > li.current-menu-item > a[href*="#"]{color:var(--ink-2)!important;background:none}
.ta-menu > li.current-menu-item > a[href*="#"]:hover{color:var(--brand)!important;background:var(--tint-soft)}
.ta-menu .sub-menu{list-style:none;margin:0;padding:8px;position:absolute;top:100%;left:0;min-width:280px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(6px);transition:.15s}
.ta-menu li:hover > .sub-menu,.ta-menu li:focus-within > .sub-menu{opacity:1;visibility:visible;transform:none}
.ta-menu .sub-menu a{padding:10px 12px;font-size:14.5px}
.ta-menu .sub-menu a:hover{background:var(--tint-soft);color:var(--brand)!important}
.ta-nav-actions{display:flex;gap:10px}
.ta-nav-toggle{position:absolute;opacity:0;pointer-events:none}
.ta-burger{display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.ta-burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* ============ SECTIONS ============ */
.ta-section{padding:88px 0}
.ta-section.soft{background:var(--bg-soft)}
.ta-eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:var(--tint);padding:6px 12px;border-radius:999px;margin-bottom:16px}
.ta-head{margin-bottom:44px;max-width:640px}
.ta-head.center{text-align:center;margin-left:auto;margin-right:auto}
.ta-head.row{max-width:none;display:flex;justify-content:space-between;align-items:flex-end;gap:16px}
.ta-head h2{font-size:clamp(28px,3.4vw,40px)}
.ta-head p{color:var(--gray);font-size:17px}

/* Hero */
.ta-hero{background:radial-gradient(1100px 520px at 85% 0%,#D8ECFF,transparent 62%),linear-gradient(180deg,#EAF5FF,#fff);padding:72px 0 88px;overflow:hidden}
.ta-hero .grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.ta-hero h1{font-size:clamp(32px,4.4vw,52px);margin-bottom:20px}
.ta-hero h1 .hl{color:var(--brand);background:linear-gradient(transparent 62%,rgba(254,154,0,.32) 62%)}
.ta-hero .lead{font-size:18px;color:var(--gray);max-width:540px}
.ta-hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
.ta-hero .ticks{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--ink-2);font-size:15px;font-weight:500}
.ta-hero .ticks li::before{content:"";display:inline-block;width:18px;height:18px;margin-right:8px;vertical-align:-3px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center/12px no-repeat}

.ta-hero .visual{position:relative;padding:100px 34px 72px}
.quiz-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:26px;border:1px solid var(--line)}
.qc-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.qc-head .pill{font-size:12.5px;font-weight:600;background:var(--tint);color:var(--brand);padding:5px 11px;border-radius:999px}
.qc-head .timer{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums}
.qc-q{font-size:17px;margin-bottom:16px!important}
.qc-opts{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:10px}
.qc-opts li{padding:12px 16px;border:1.5px solid var(--line);border-radius:12px;font-weight:500}
.qc-opts li.ok{border-color:var(--green);background:#ECFDF5;color:#2F9E44}
.qc-opts li.ok::after{content:" ✓";font-weight:700}
.qc-foot{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--gray);font-weight:600}
.qc-foot .bar{flex:1;height:8px;border-radius:99px;background:var(--line);overflow:hidden}
.qc-foot .bar i{display:block;height:100%;background:var(--brand-gradient)}
.float-card{position:absolute;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;border:1px solid var(--line);font-size:14px}
.float-card small{display:block;color:var(--gray-2);font-weight:600;font-size:12px;margin-bottom:6px}
.float-card.score{right:0;bottom:0;width:210px}
.float-card.score .row{display:flex;justify-content:space-between;padding:3px 0}
.float-card .good{color:var(--green)}.float-card .mid{color:var(--amber-dark)}.float-card .low{color:#FF6467}
.float-card.word{left:0;top:0;display:flex;flex-direction:column;background:var(--amber-soft);border-color:#FFE0B2}
.float-card.word b{font-family:var(--font-head);font-size:20px;color:var(--brand)}
.float-card.word span{color:var(--gray);font-size:13px}

/* Course groups */
.ta-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.group-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;color:var(--ink)!important;transition:.2s;position:relative;overflow:hidden}
.group-card::before{content:"";position:absolute;inset:0 0 auto;height:5px;background:var(--brand-gradient);opacity:0;transition:.2s}
.group-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.group-card:hover::before{opacity:1}
.group-card .ic-wrap{display:grid;place-items:center;width:56px;height:56px;border-radius:16px;background:var(--tint);color:var(--brand);margin-bottom:18px}
.group-card .ic-wrap .ta-ic{width:28px;height:28px}
.group-card .tag{align-self:flex-start;font-size:12.5px;font-weight:700;color:var(--amber-dark);background:var(--amber-soft);padding:4px 10px;border-radius:999px;margin-bottom:12px}
.group-card h3{font-size:21px}
.group-card p{color:var(--gray);flex:1}
.group-card .more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand)}

/* Steps */
.ta-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:none}
.ta-steps li{background:#fff;border-radius:var(--radius-lg);padding:28px 24px;position:relative;box-shadow:var(--shadow-sm)}
.ta-steps .num{position:absolute;top:20px;right:22px;font-family:var(--font-head);font-weight:800;font-size:40px;line-height:1;color:var(--tint)}
.ta-steps li > .ta-ic{width:34px;height:34px;color:var(--brand);margin-bottom:16px}
.ta-steps h3{font-size:18px}
.ta-steps p{color:var(--gray);font-size:15px;margin:0}
.ta-steps li:not(:last-child)::after{content:"";position:absolute;top:50%;right:-15px;width:10px;height:10px;border-top:2px solid var(--amber);border-right:2px solid var(--amber);transform:translateY(-50%) rotate(45deg)}

/* Features */
.ta-wrap.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.ta-wrap.split .ta-head{position:sticky;top:120px;margin-bottom:0}
.ta-features{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.feat{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff;transition:.2s}
.feat:hover{border-color:var(--tint);box-shadow:var(--shadow)}
.feat > .ta-ic{width:30px;height:30px;color:var(--amber-dark);margin-bottom:12px}
.feat h3{font-size:17px}
.feat p{color:var(--gray);font-size:15px;margin:0}

/* Courses */
.ta-courses{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.course-card{display:flex;flex-direction:column;background:#fff;border-radius:var(--radius-lg);overflow:hidden;color:var(--ink)!important;box-shadow:var(--shadow-sm);transition:.2s}
.course-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.course-card .thumb{aspect-ratio:16/9;background:linear-gradient(135deg,#3B44EF,#57B6F7);display:grid;place-items:center;overflow:hidden}
.course-card .thumb img{width:100%;height:100%;object-fit:cover}
.course-card .thumb img.ph{width:96px;height:96px;object-fit:contain;filter:drop-shadow(0 6px 14px rgba(15,23,48,.25))}
.course-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.course-card .tag{font-size:12.5px;font-weight:600;color:var(--brand)}
.course-card h3{font-size:18px;margin:0;flex:1}
.course-card .price{font-weight:700;color:var(--amber-dark)}

/* FAQ */
.ta-faq{display:grid;gap:12px}
.ta-faq details{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:0 22px;transition:.2s}
.ta-faq details[open]{border-color:var(--tint);box-shadow:var(--shadow-sm)}
.ta-faq summary{cursor:pointer;list-style:none;padding:18px 32px 18px 0;font-weight:600;font-size:17px;position:relative}
.ta-faq summary::-webkit-details-marker{display:none}
.ta-faq summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--brand)}
.ta-faq details[open] summary::after{content:"−"}
.ta-faq details p{color:var(--gray);padding-bottom:18px;margin:0}

/* CTA band */
.ta-cta{padding:72px 0}
.ta-cta .cta-btns{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
.ta-cta .box{display:flex;align-items:center;justify-content:space-between;gap:32px;background:linear-gradient(110deg,#141A6E,#3D4AEF 55%,#4B87F4);color:#fff;border-radius:var(--radius-lg);padding:48px 52px;position:relative;overflow:hidden}
.ta-cta .box::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:rgba(87,182,247,.30)}
.ta-cta h2{color:#fff!important;font-size:clamp(24px,3vw,34px)}
.ta-cta p{color:#C6D2FF;margin:0;font-size:17px}
.ta-cta .ta-btn{position:relative;z-index:1}

/* ============ FOOTER ============ */
.ta-footer{background:var(--navy);color:#B0B6C6;font-size:15px}
.ta-footer .cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-top:64px;padding-bottom:48px}
.ta-footer h4{color:#fff!important;font-size:16px;margin-bottom:16px}
.ta-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ta-footer a{color:#B0B6C6!important}
.ta-footer a:hover{color:#fff!important}
.ta-footer .about p{margin:18px 0}
.ta-footer .socials{display:flex;flex-wrap:wrap;gap:8px}
.ta-footer .socials a{border:1px solid #2A3560;padding:6px 12px;border-radius:999px;font-size:13.5px}
.ta-footer .socials a:hover{border-color:var(--amber)}
.ta-footer .contact li{display:flex;gap:10px;align-items:flex-start}
.ta-footer .contact .ta-ic{color:var(--amber);margin-top:3px;width:18px;height:18px}
.ta-footer .ta-btn{margin-top:18px;color:#fff!important}
.ta-copy{border-top:1px solid #222C52;padding:18px 0;font-size:13.5px;color:#7890AA}
.ta-copy a{color:#B0B6C6!important}

/* ============ 404 ============ */
.ta-404{padding:96px 0 112px;background:radial-gradient(900px 420px at 50% 0%,#D8ECFF,transparent 65%),linear-gradient(180deg,#EAF5FF,#fff);text-align:center}
.ta-404 .code{font-family:var(--font-head);font-weight:800;font-size:clamp(88px,16vw,150px);line-height:1;margin:0 0 12px;background:var(--brand-gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
.ta-404 h1{font-size:clamp(26px,3.4vw,36px)}
.ta-404 p{color:var(--gray);font-size:17px;max-width:520px;margin:0 auto 28px}
.ta-404 .ctas{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ============ TUTOR LMS — đồng bộ font, màu ============ */
body.ta{--tutor-color-primary:#3D4AEF;--tutor-color-primary-rgb:61,74,239;--tutor-color-primary-hover:#2830BE}
body.ta .tutor-wrap,body.ta [class^="tutor-"]{font-family:var(--font)}
body.ta .site-main,body.ta .page-content{max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
body.ta #ta-main > .tutor-wrap-parent{padding-top:40px;padding-bottom:64px}
body.ta .page-header .entry-title{font-size:clamp(28px,3.4vw,40px);margin:40px auto 24px;max-width:var(--maxw);padding:0 20px}

/* ============ GĐ1: KHỐI DÙNG CHUNG ============ */
.ta-section.tight{padding:56px 0}
.ta-btn.light{background:#fff;color:var(--brand)}
.ta-btn.light:hover{color:var(--brand-dark);box-shadow:var(--shadow)}
.ta-btn.is-disabled{opacity:.6;cursor:default;pointer-events:none}
.center-link{text-align:center;margin-top:24px}
.ta-checklist{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:10px}
.ta-checklist li{position:relative;padding-left:30px}
.ta-checklist li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233D4AEF' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12l4 4 8-8'/%3E%3C/svg%3E") center/12px no-repeat}
.ta-page-hero{padding:56px 0 48px;background:radial-gradient(900px 400px at 85% 0%,#D8ECFF,transparent 62%),linear-gradient(180deg,#EAF5FF,#fff)}
.ta-page-hero h1{font-size:clamp(30px,4.2vw,46px);margin-bottom:14px}
.ta-page-hero .lead{font-size:18px;color:var(--gray);max-width:720px}
.ta-page-hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 8px}
.ta-sublink{color:var(--gray);margin:0}
.ta-crumbs{font-size:14px;color:var(--gray-2);margin-bottom:16px}
.ta-crumbs a{color:var(--gray)!important}
.ta-jump{list-style:none;margin:20px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.ta-jump a{display:inline-block;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-2)!important}
.ta-jump a:hover{border-color:var(--brand);color:var(--brand)!important}
.ta-notice{background:var(--tint-soft);border:1px solid var(--tint);border-radius:var(--radius);padding:24px}
.ta-notice p{margin:0 0 16px;color:var(--ink-2)}
.ta-notice .ctas{display:flex;flex-wrap:wrap;gap:10px}
.ta-note{color:var(--gray);font-size:15px;margin:16px 0 0}
.ta-source{font-size:13.5px;color:var(--gray);margin:16px 0 0}
.ta-source a{text-decoration:underline}

/* Lối vào */
.ta-entries{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.entry{display:flex;align-items:center;gap:16px;padding:22px 24px;border-radius:var(--radius-lg);background:#fff;border:1.5px solid var(--line);color:var(--ink)!important;transition:.2s}
.entry:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-2px)}
.entry .ic-wrap{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--tint);color:var(--brand);flex:none}
.entry .ic-wrap .ta-ic{width:26px;height:26px}
.entry .tx{flex:1;display:flex;flex-direction:column}
.entry .tx b{font-size:18px;font-weight:800}
.entry .tx small{color:var(--gray);font-size:14.5px}
.entry > .ta-ic{color:var(--brand)}
.entry.alt .ic-wrap{background:var(--amber-soft);color:var(--amber-dark)}

/* Thẻ kỳ thi */
.ta-exams{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.exam-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;transition:.2s}
.exam-card:not(.is-soon):hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:transparent}
.exam-card.is-soon{background:#FAFBFF}
.ec-top{display:flex;justify-content:space-between;gap:8px;margin-bottom:14px}
.ec-lang{font-size:12px;font-weight:700;color:var(--gray)}
.ec-tag{font-size:12px;font-weight:700;color:var(--brand);background:var(--tint);padding:3px 10px;border-radius:999px}
.ec-soon{display:inline-block;font-size:12px;font-weight:700;color:var(--amber-dark);background:var(--amber-soft);padding:3px 10px;border-radius:999px}
.exam-card h3{font-size:20px;margin-bottom:6px}
.ec-for{color:var(--gray);font-size:14.5px;margin-bottom:12px!important}
.ec-meta{list-style:none;margin:0 0 18px;padding:0;font-size:13.5px;color:var(--ink-2);display:grid;gap:4px;flex:1}
.ec-meta b{font-weight:600}
.exam-card .ta-btn{align-self:flex-start}
.ta-filter{display:inline-flex;gap:6px;padding:5px;border-radius:999px;background:var(--bg-soft);margin-bottom:24px}
.ta-filter button{border:0;background:none;padding:8px 18px;border-radius:999px;font:600 14.5px var(--font);color:var(--gray);cursor:pointer}
.ta-filter button.on{background:#fff;color:var(--brand);box-shadow:var(--shadow-sm)}

/* Khối tính năng hai cột */
.ta-feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.ta-feature-row.reverse .copy{order:2}
.ta-feature-row h2{font-size:clamp(26px,3.2vw,36px)}
.ta-feature-row .copy > p{color:var(--gray);font-size:17px}
.level-card,.bars-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:28px;border:1px solid var(--line)}
.level-card small,.bars-card small{display:block;color:var(--gray-2);font-weight:600;font-size:12.5px;margin-bottom:14px}
.level-card .lv{display:flex;justify-content:space-between;align-items:baseline}
.level-card .lv b{font-size:44px;font-weight:800;background:var(--brand-gradient);-webkit-background-clip:text;background-clip:text;color:transparent}
.steps6{list-style:none;margin:16px 0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
.steps6 li{text-align:center;padding:8px 0;border-radius:10px;background:var(--bg-soft);font-weight:700;font-size:14px;color:var(--gray-2)}
.steps6 li.done{background:var(--tint);color:var(--brand)}
.steps6 li.cur{background:var(--brand-gradient);color:#fff}
.level-card p{margin:0;color:var(--ink-2)}
.bar-row{display:grid;grid-template-columns:150px 1fr 44px;gap:12px;align-items:center;padding:7px 0;font-size:14.5px}
.bar-row .track{height:10px;border-radius:99px;background:var(--bg-soft);overflow:hidden}
.bar-row .track i{display:block;height:100%;border-radius:99px}
.bar-row i.low{background:#FF6467}.bar-row i.mid{background:var(--amber)}.bar-row i.good{background:var(--green)}
.bar-row b{text-align:right}.bar-row b.low{color:#E5484D}.bar-row b.mid{color:var(--amber-dark)}.bar-row b.good{color:#18A34A}

/* Bảng */
.ta-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.ta-table{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff}
.ta-table th,.ta-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.ta-table tbody tr:last-child th,.ta-table tbody tr:last-child td{border-bottom:0}
.ta-table thead th{background:var(--tint-soft);font-weight:700;color:var(--ink-2);white-space:nowrap}
.ta-table tbody th{font-weight:700;color:var(--ink-2)}
.ta-table small,.ta-table em{color:var(--gray);font-size:13px}
.ta-table.compare{min-width:1100px}
.ta-table.compare td.src a{text-decoration:underline}

/* Trang kỳ thi */
.exam-facts{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:start}
.exam-facts .ta-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.exam-facts .ta-table th{width:130px;background:var(--tint-soft)}
.structure{background:var(--bg-soft);border-radius:var(--radius);padding:22px}
.structure h3{font-size:18px}
.structure ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.structure li{display:flex;flex-direction:column;background:#fff;border-radius:12px;padding:12px 14px}
.structure li span{color:var(--gray);font-size:14.5px}
.ta-tests{display:grid;gap:12px}
.test-row{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px}
.test-row .t-main{flex:1;display:flex;flex-direction:column}
.test-row .t-main span{color:var(--gray);font-size:14px}
.t-access{font-size:13px;font-weight:700;color:var(--brand);background:var(--tint);padding:4px 10px;border-radius:999px}
.t-status{font-size:13px;font-weight:700;color:var(--amber-dark)}
.ta-types{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.ta-types li{display:flex;justify-content:space-between;gap:12px;padding:14px 18px;border:1px solid var(--line);border-radius:12px}
.ta-types small{color:var(--gray-2);font-weight:700}
.ta-two{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.ta-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px}
.ta-box h3{display:flex;align-items:center;gap:10px;font-size:18px}
.ta-box h3 .ta-ic{color:var(--brand)}
.ta-box p{color:var(--gray)}
.ta-tips{margin:0;padding:0;list-style:none;counter-reset:tip;display:grid;gap:12px}
.ta-tips li{counter-increment:tip;position:relative;padding:16px 18px 16px 60px;background:var(--bg-soft);border-radius:var(--radius)}
.ta-tips li::before{content:counter(tip);position:absolute;left:16px;top:14px;width:30px;height:30px;border-radius:50%;background:var(--brand-gradient);color:#fff;font-weight:800;display:grid;place-items:center;font-size:14px}

/* Chọn mục tiêu */
.gp-q{font-size:20px;margin:0 0 14px!important}
.gp-opts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:32px}
.gp-opts.small{grid-template-columns:repeat(2,minmax(0,200px))}
.gp-opts button{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:18px;border-radius:var(--radius);border:1.5px solid var(--line);background:#fff;font:700 16px var(--font);color:var(--ink);cursor:pointer;text-align:left;transition:.15s}
.gp-opts.small button{flex-direction:row;align-items:center;padding:12px 18px}
.gp-opts button .ta-ic{color:var(--brand);width:26px;height:26px}
.gp-opts button:hover{border-color:var(--brand-2)}
.gp-opts button.on{border-color:var(--brand);background:var(--tint-soft);box-shadow:0 0 0 3px rgba(61,74,239,.12)}
.gp-result{display:grid;gap:16px}
.gp-empty{color:var(--gray);background:var(--bg-soft);border-radius:var(--radius);padding:18px;margin:0}
.gp-set{display:grid;gap:16px}
.gp-card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;background:#fff;box-shadow:var(--shadow-sm)}
.gp-card:first-child{border-color:var(--brand);box-shadow:var(--shadow)}
.gp-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.gp-head h3{margin:0;font-size:22px}
.gp-rank{font-size:12px;font-weight:800;color:#fff;background:var(--brand-gradient);padding:4px 10px;border-radius:999px}
.gp-card:not(:first-child) .gp-rank{background:var(--amber-soft);color:var(--amber-dark)}
.gp-card ul{margin:0 0 16px;padding-left:18px;color:var(--ink-2);display:grid;gap:4px}
.gp-card em{color:var(--gray);font-size:13px}
.gp-card .ctas{display:flex;flex-wrap:wrap;gap:10px}
.gp-foot{color:var(--gray-2);font-size:14px;margin:0}

/* Khoá học */
.ta-plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;scroll-margin-top:120px}
.plan.featured{border:2px solid var(--brand);box-shadow:var(--shadow-lg)}
.plan .tag{align-self:flex-start;font-size:12.5px;font-weight:700;color:var(--brand);background:var(--tint);padding:4px 10px;border-radius:999px;margin-bottom:12px}
.plan h2{font-size:26px;margin-bottom:2px!important}
.plan-sub{color:var(--gray);margin-bottom:18px!important}
.plan .ta-checklist{flex:1}
.plan-price{font-weight:700;color:var(--amber-dark)}
.plan .ctas{display:flex;flex-wrap:wrap;gap:10px}
.faq-group{font-size:20px;margin:32px 0 14px!important}
.faq-group:first-child{margin-top:0!important}

/* Sổ lỗi sai & danh sách đề có thật */
.t-best{color:var(--green)!important;font-weight:600}
.t-best b{color:#18A34A}
.nb-guest{background:var(--tint-soft);border:1px solid var(--tint);border-radius:var(--radius-lg);padding:28px;max-width:720px}
.nb-guest .ctas{display:flex;flex-wrap:wrap;gap:10px}
.nb-filter{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:20px}
.nb-filter select{padding:9px 12px;border:1.5px solid var(--line);border-radius:12px;font:600 14.5px var(--font);background:#fff}
.nb-filter label{font-weight:600;font-size:14.5px;color:var(--gray)}
.nb-bars{max-width:760px;margin-bottom:32px}
a.bar-row{color:var(--ink)!important;border-radius:8px}
a.bar-row:hover .lb{color:var(--brand)}
.nb-h{font-size:22px}
.nb-empty{color:var(--gray)}
.nb-list{display:grid;gap:16px;max-width:860px}
.nb-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px}
.nb-item.is-done{opacity:.65}
.nb-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.nb-meta span{font-size:12.5px;font-weight:700;color:var(--gray);background:var(--bg-soft);padding:3px 10px;border-radius:999px}
.nb-meta span:first-child{color:var(--brand);background:var(--tint)}
.nb-passage{background:var(--bg-soft);border-radius:12px;padding:10px 14px;margin-bottom:12px}
.nb-passage summary{cursor:pointer;font-weight:700;color:var(--brand)}
.nb-stem{font-size:17px;font-weight:500}
.nb-opts{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:6px}
.nb-opts li{padding:9px 14px;border-radius:12px;border:1.5px solid var(--line)}
.nb-opts li.ok{border-color:#86E3A8;background:#ECFDF5}
.nb-opts li.bad{border-color:#FFB4B4;background:#FFF1F1}
.nb-skip{color:var(--amber-dark);font-weight:600;font-size:14.5px}
.nb-exp{background:var(--tint-soft);border-radius:12px;padding:12px 14px;margin-bottom:14px;font-size:15px}

/* Giáo viên */
.ta-teachers{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.teacher{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm)}
.t-head{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.t-avatar{flex:none;display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:var(--brand-gradient);color:#fff;font-weight:800;font-size:20px}
.teacher h3{font-size:21px;margin:0 0 6px!important}
.t-badges{display:flex;flex-wrap:wrap;gap:6px}
.t-badges span{font-size:12.5px;font-weight:700;color:var(--brand);background:var(--tint);padding:3px 10px;border-radius:999px}
.t-cv{margin:0;padding-left:18px;display:grid;gap:6px;color:var(--ink-2)}
.plan > p:not(.plan-sub):not(.plan-price){color:var(--gray);font-size:15px}

/* Thanh dưới trên điện thoại */
.ta-mbar{display:none}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .ta-nav-actions .ta-btn.ghost{display:none}
  .ta-steps{grid-template-columns:repeat(2,1fr)}
  .ta-steps li::after{display:none}
  .ta-wrap.split{grid-template-columns:1fr;gap:32px}
  .ta-wrap.split .ta-head{position:static}
  .ta-footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .ta-burger{display:flex}
  .ta-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:12px;padding:12px 20px 20px;display:none}
  .ta-nav-toggle:checked ~ .ta-nav{display:flex}
  .ta-nav-toggle:checked + .ta-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .ta-nav-toggle:checked + .ta-burger span:nth-child(2){opacity:0}
  .ta-nav-toggle:checked + .ta-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .ta-menu{flex-direction:column}
  .ta-menu .sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 14px;min-width:0}
  .ta-menu .menu-item-has-children > a::after{display:none}
  .ta-nav-actions{flex-direction:column}
  .ta-nav-actions .ta-btn.ghost{display:inline-flex}
  .ta-hero .grid{grid-template-columns:1fr;gap:40px}
  .ta-hero .visual{max-width:480px;margin:0 auto;width:100%}
  .ta-groups,.ta-courses{grid-template-columns:1fr 1fr}
  .ta-cta .box{flex-direction:column;align-items:flex-start;padding:36px 28px}
}
@media (max-width:640px){
  .hide-sm{display:none!important}
  .ta-topbar .tb-right{gap:12px}
  .ta-header .ta-wrap{min-height:64px}
  body.ta .ta-logo img{height:44px}
  .ta-logo .txt b{font-size:20px}
  .ta-logo .txt small{font-size:10px}
  .ta-section{padding:64px 0}
  .ta-hero{padding:48px 0 64px}
  .ta-hero .visual{padding:56px 0 64px}
  .float-card.score{width:180px}
  .ta-groups,.ta-courses,.ta-features,.ta-steps{grid-template-columns:1fr}
  .ta-head.row{flex-direction:column;align-items:flex-start}
  .ta-footer .cols{grid-template-columns:1fr;gap:32px}
  .ta-cta{padding-bottom:64px}
}
@media (max-width:1080px){
  .ta-exams{grid-template-columns:repeat(2,1fr)}
  .ta-plans{grid-template-columns:1fr}
}
@media (max-width:900px){
  .ta-entries,.ta-feature-row,.exam-facts,.ta-two,.ta-teachers{grid-template-columns:1fr}
  .ta-feature-row{gap:32px}
  .ta-feature-row.reverse .copy{order:0}
  .ta-mbar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:150;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .ta-mbar a{display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 0;font-size:11.5px;font-weight:600;color:var(--gray)!important}
  .ta-mbar a .ta-ic{width:22px;height:22px}
  .ta-mbar a.on{color:var(--brand)!important}
  body.ta{padding-bottom:68px}
}
@media (max-width:640px){
  .ta-exams,.ta-types,.gp-opts{grid-template-columns:1fr}
  .test-row{flex-wrap:wrap}
  .test-row .t-main{flex-basis:100%}
  .bar-row{grid-template-columns:110px 1fr 40px;font-size:13.5px}
  .ta-cta .cta-btns{flex-direction:column;width:100%}
  .ta-cta .cta-btns .ta-btn{width:100%}
}
@media (max-width:782px){.admin-bar .ta-header{top:46px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}