/*
Theme Name: Tiếng Anh MentorVN (Hello Child)
Theme URI: https://tienganh.mentorvn.com
Description: Child theme cho Hello Elementor — giao diện giáo dục cho tienganh.mentorvn.com, đồng bộ thương hiệu MentorVN (đỏ đô + vàng cam).
Author: Ngọc Duy
Template: hello-elementor
Version: 1.0.0
Text Domain: tienganh-child
*/

/* ============ TOKENS ============ */
:root{
  --maroon:#7A1E2B;
  --maroon-dark:#5E1520;
  --maroon-2:#93283A;
  --pink:#F4E3E6;
  --pink-soft:#FBF5F6;
  --amber:#F2A33A;
  --amber-dark:#D9861A;
  --amber-soft:#FFF4E2;
  --green:#1E8E5A;
  --ink:#1A1A1A;
  --ink-2:#26262B;
  --gray:#5F5F66;
  --gray-2:#8A8A92;
  --line:#ECECEF;
  --bg-soft:#F8F6F4;
  --white:#FFFFFF;
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 2px 10px rgba(26,26,26,.05);
  --shadow:0 12px 32px rgba(122,30,43,.10);
  --shadow-lg:0 24px 56px rgba(122,30,43,.16);
  --maxw:1180px;
  --font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --font-head:'Lexend','Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}

/* ============ BASE ============ */
*,*::before,*::after{box-sizing:border-box}
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:700;letter-spacing:-.01em}
body.ta p{margin:0 0 1em}
body.ta a{color:var(--maroon);text-decoration:none}
body.ta a:hover{color:var(--maroon-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(--maroon);color:#fff}
.ta-btn.primary:hover{background:var(--maroon-dark);color:#fff;box-shadow:var(--shadow)}
.ta-btn.ghost{background:transparent;color:var(--maroon);border-color:var(--pink)}
.ta-btn.ghost:hover{border-color:var(--maroon);color:var(--maroon)}
.ta-btn.accent{background:var(--amber);color:var(--ink)}
.ta-btn.accent:hover{background:var(--amber-dark);color:var(--ink)}
.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(--maroon-dark);color:#f3dfe2;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:#f3dfe2!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;color:var(--ink)!important;flex:none}
.ta-logo .mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--maroon);color:#fff;font-family:var(--font-head);font-weight:700;font-size:17px;position:relative}
.ta-logo .mark::after{content:"";position:absolute;right:-4px;bottom:-4px;width:14px;height:14px;border-radius:50%;background:var(--amber);border:3px solid #fff}
.ta-logo .txt{display:flex;flex-direction:column;line-height:1.1}
.ta-logo .txt b{font-family:var(--font-head);font-size:19px}
.ta-logo .txt small{font-size:12px;font-weight:600;color:var(--maroon);letter-spacing:.08em;text-transform:uppercase}
.ta-logo.light{color:#fff!important}
.ta-logo.light .mark{background:#fff;color:var(--maroon)}
.ta-logo.light .mark::after{border-color:var(--ink-2)}
.ta-logo.light .txt small{color:var(--amber)}

.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(--maroon)!important;background:var(--pink-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)}
.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(--pink-soft);color:var(--maroon)!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(--maroon);background:var(--pink);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(1200px 500px at 85% 0%,var(--amber-soft),transparent 60%),linear-gradient(180deg,var(--pink-soft),#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(--maroon);background:linear-gradient(transparent 62%,rgba(242,163,58,.45) 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(--pink);color:var(--maroon);padding:5px 11px;border-radius:999px}
.qc-head .timer{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--maroon);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:#EAF7F0;color:#13603D}
.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:linear-gradient(90deg,var(--maroon),var(--amber))}
.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:#C0392B}
.float-card.word{left:0;top:0;display:flex;flex-direction:column;background:var(--amber-soft);border-color:#F6DDB4}
.float-card.word b{font-family:var(--font-head);font-size:20px;color:var(--maroon)}
.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:linear-gradient(90deg,var(--maroon),var(--amber));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(--pink);color:var(--maroon);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(--maroon)}

/* 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:700;font-size:40px;line-height:1;color:var(--pink)}
.ta-steps li > .ta-ic{width:34px;height:34px;color:var(--maroon);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(--pink);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,var(--maroon),var(--maroon-2) 55%,var(--amber));display:grid;place-items:center;overflow:hidden}
.course-card .thumb img{width:100%;height:100%;object-fit:cover}
.course-card .ph{font-family:var(--font-head);font-size:44px;font-weight:700;color:rgba(255,255,255,.85)}
.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(--maroon)}
.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(--pink);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(--maroon)}
.ta-faq details[open] summary::after{content:"−"}
.ta-faq details p{color:var(--gray);padding-bottom:18px;margin:0}

/* CTA band */
.ta-cta{padding:0 0 88px}
.ta-cta .box{display:flex;align-items:center;justify-content:space-between;gap:32px;background:linear-gradient(120deg,var(--maroon-dark),var(--maroon) 55%,var(--maroon-2));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(242,163,58,.25)}
.ta-cta h2{color:#fff!important;font-size:clamp(24px,3vw,34px)}
.ta-cta p{color:#f3dfe2;margin:0;font-size:17px}
.ta-cta .ta-btn{position:relative;z-index:1}

/* ============ FOOTER ============ */
.ta-footer{background:var(--ink-2);color:#C9C9CF;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:#C9C9CF!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 #3A3A42;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:var(--ink)!important}
.ta-copy{border-top:1px solid #34343B;padding:18px 0;font-size:13.5px;color:#9A9AA2}
.ta-copy a{color:#C9C9CF!important}

/* ============ TUTOR LMS — đồng bộ font, màu ============ */
body.ta{--tutor-color-primary:#7A1E2B;--tutor-color-primary-rgb:122,30,43;--tutor-color-primary-hover:#5E1520}
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}

/* ============ 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}
  .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:782px){.admin-bar .ta-header{top:46px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}