/**
 * Theme Name: Blocksy Child
 * Description: Gia sư Giang — design system (child theme)
 * Author: Gia sư Giang
 * Template: blocksy
 * Text Domain: blocksy
 * Version: 1.0.0
 */

/* ===== Design tokens ===== */
:root{
  --gsg-primary:#0e7c7b;         /* teal — tin cậy, giáo dục */
  --gsg-primary-d:#0a5d5c;
  --gsg-primary-l:#e6f2f1;
  --gsg-accent:#ff7a45;          /* coral — hành động (CTA) */
  --gsg-accent-d:#e85f2b;
  --gsg-amber:#ffb100;           /* sao/điểm nhấn */
  --gsg-ink:#14202e;
  --gsg-muted:#5a6b7b;
  --gsg-line:#e4ebee;
  --gsg-bg:#ffffff;
  --gsg-bg-soft:#f2f8f8;
  --gsg-bg-tint:#eef6f6;
  --gsg-radius:18px;
  --gsg-radius-sm:12px;
  --gsg-shadow:0 10px 30px -12px rgba(14,124,123,.28);
  --gsg-shadow-sm:0 6px 18px -10px rgba(20,32,46,.25);
  --gsg-container:1180px;
  --gsg-font:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
}

/* ===== Base — ép font hệ thống (System Default) toàn site ===== */
html body,body input,body select,body textarea,body button,
.entry-content,.ct-container,h1,h2,h3,h4,h5,h6{font-family:var(--gsg-font) !important}
.gsg-landing{overflow-x:clip}
.gsg-landing h1,.gsg-landing h2,.gsg-landing h3,.gsg-landing h4{font-family:var(--gsg-font);color:var(--gsg-ink);line-height:1.18;letter-spacing:-.01em}
.gsg-landing p{color:var(--gsg-muted);line-height:1.7}
.gsg-landing img{max-width:100%;height:auto;display:block}
.gsg-container{max-width:var(--gsg-container);margin-inline:auto;padding-inline:20px}

/* ===== Section rhythm ===== */
.gsg-section{padding:clamp(48px,7vw,96px) 0;position:relative}
.gsg-section--soft{background:var(--gsg-bg-soft)}
.gsg-section--tint{background:linear-gradient(180deg,var(--gsg-bg-tint),#fff)}
.gsg-eyebrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gsg-primary);background:var(--gsg-primary-l);padding:7px 14px;border-radius:999px;margin-bottom:16px}
.gsg-h2{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:800;margin:0 0 14px}
.gsg-lead{font-size:clamp(1rem,1.4vw,1.15rem);max-width:660px}
.gsg-center{text-align:center}
.gsg-center .gsg-lead{margin-inline:auto}

/* ===== Buttons ===== */
.gsg-btn{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:1rem;padding:15px 26px;border-radius:999px;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease,background .18s ease;cursor:pointer;border:0;line-height:1}
.gsg-btn--primary{background:var(--gsg-accent);color:#fff;box-shadow:0 12px 24px -10px rgba(255,122,69,.7)}
.gsg-btn--primary:hover{background:var(--gsg-accent-d);transform:translateY(-2px)}
.gsg-btn--ghost{background:#fff;color:var(--gsg-primary-d);border:2px solid var(--gsg-line)}
.gsg-btn--ghost:hover{border-color:var(--gsg-primary);transform:translateY(-2px)}
.gsg-btn--white{background:#fff;color:var(--gsg-primary-d)}
.gsg-btn--white:hover{transform:translateY(-2px)}
.gsg-btn--lg{padding:17px 32px;font-size:1.05rem}

/* ===== Hero ===== */
.gsg-hero{position:relative;background:radial-gradient(1100px 500px at 85% -10%,#d4ede9 0,transparent 60%),linear-gradient(180deg,#f4faf9,#fff);padding:clamp(40px,6vw,84px) 0 clamp(48px,7vw,90px);overflow:hidden}
.gsg-hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,4vw,56px);align-items:center}
.gsg-hero h1{font-size:clamp(2rem,4.6vw,3.4rem);font-weight:800;margin:14px 0 18px}
.gsg-hero h1 .gsg-hl{color:var(--gsg-primary);position:relative;white-space:nowrap}
.gsg-hero__lead{font-size:clamp(1.02rem,1.5vw,1.2rem);max-width:560px;margin-bottom:26px}
.gsg-hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.gsg-hero__trust{display:flex;flex-wrap:wrap;gap:18px 26px;color:var(--gsg-muted);font-size:.95rem;font-weight:600}
.gsg-hero__trust span{display:inline-flex;align-items:center;gap:8px}
.gsg-hero__media{position:relative}
.gsg-hero__media img{border-radius:24px;box-shadow:var(--gsg-shadow);width:100%;object-fit:cover;aspect-ratio:4/3.4}
.gsg-hero__badge{position:absolute;background:#fff;border-radius:16px;box-shadow:var(--gsg-shadow-sm);padding:14px 16px;display:flex;align-items:center;gap:12px;font-weight:700;color:var(--gsg-ink)}
.gsg-hero__badge small{display:block;font-weight:500;color:var(--gsg-muted);font-size:.8rem}
.gsg-hero__badge .gsg-emoji{font-size:1.6rem;line-height:1}
.gsg-hero__badge--tl{top:18px;left:-14px}
.gsg-hero__badge--br{bottom:20px;right:-10px}
.gsg-blob{position:absolute;inset:auto;width:min(46vw,380px);height:min(46vw,380px);background:radial-gradient(circle at 30% 30%,#ffd9c7,transparent 62%);filter:blur(6px);z-index:-1;top:-40px;right:-40px;border-radius:50%}

/* ===== Stats bar ===== */
.gsg-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:clamp(30px,4vw,44px)}
.gsg-stat{background:#fff;border:1px solid var(--gsg-line);border-radius:var(--gsg-radius);padding:22px 20px;text-align:center;box-shadow:var(--gsg-shadow-sm)}
.gsg-stat__num{font-size:clamp(1.8rem,3.2vw,2.5rem);font-weight:800;color:var(--gsg-primary);line-height:1}
.gsg-stat__num sub{font-size:1.4rem;vertical-align:baseline}
.gsg-stat__label{margin:8px 0 0;font-weight:600;color:var(--gsg-ink);font-size:.98rem}

/* ===== Generic grid + cards ===== */
.gsg-grid{display:grid;gap:22px}
.gsg-grid--4{grid-template-columns:repeat(4,1fr)}
.gsg-grid--3{grid-template-columns:repeat(3,1fr)}
.gsg-grid--2{grid-template-columns:repeat(2,1fr)}
.gsg-card{background:#fff;border:1px solid var(--gsg-line);border-radius:var(--gsg-radius);padding:26px;box-shadow:var(--gsg-shadow-sm);transition:transform .2s ease,box-shadow .2s ease;height:100%}
.gsg-card:hover{transform:translateY(-6px);box-shadow:var(--gsg-shadow)}
.gsg-card__ic{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;font-size:1.7rem;background:var(--gsg-primary-l);margin-bottom:16px}
.gsg-card h3{font-size:1.2rem;font-weight:700;margin:0 0 8px}
.gsg-card p{margin:0;font-size:.97rem}
.gsg-card--service{overflow:hidden;padding:0}
.gsg-card--service img{aspect-ratio:16/10;object-fit:cover;width:100%}
.gsg-card--service .gsg-card__body{padding:22px 24px 26px}
.gsg-card__tag{display:inline-block;font-size:.78rem;font-weight:700;color:var(--gsg-primary);background:var(--gsg-primary-l);padding:5px 12px;border-radius:999px;margin-bottom:10px}

/* ===== Why / feature list ===== */
.gsg-feature{display:flex;gap:16px;align-items:flex-start}
.gsg-feature__ic{flex:0 0 auto;width:48px;height:48px;border-radius:12px;background:var(--gsg-primary);color:#fff;display:grid;place-items:center;font-size:1.3rem}
.gsg-feature h3{font-size:1.1rem;margin:2px 0 6px;font-weight:700}
.gsg-feature p{margin:0;font-size:.95rem}

/* ===== Steps / process ===== */
.gsg-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.gsg-step{position:relative;background:#fff;border:1px solid var(--gsg-line);border-radius:var(--gsg-radius);padding:30px 22px 24px;text-align:center;box-shadow:var(--gsg-shadow-sm)}
.gsg-step__n{counter-increment:step;width:52px;height:52px;margin:0 auto 14px;border-radius:50%;background:var(--gsg-primary);color:#fff;font-weight:800;font-size:1.3rem;display:grid;place-items:center;box-shadow:0 8px 18px -8px rgba(14,124,123,.7)}
.gsg-step h3{font-size:1.08rem;margin:0 0 6px;font-weight:700}
.gsg-step p{margin:0;font-size:.92rem}
.gsg-step:not(:last-child)::after{content:"";position:absolute;top:52px;right:-13px;width:26px;height:2px;background:var(--gsg-line)}

/* ===== Formats ===== */
.gsg-format{display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--gsg-line);border-radius:var(--gsg-radius);padding:22px;box-shadow:var(--gsg-shadow-sm)}
.gsg-format__ic{flex:0 0 auto;width:62px;height:62px;border-radius:16px;background:var(--gsg-bg-tint);display:grid;place-items:center;font-size:1.9rem}
.gsg-format h3{margin:0 0 4px;font-size:1.12rem;font-weight:700}
.gsg-format p{margin:0;font-size:.94rem}

/* ===== Testimonials ===== */
.gsg-quote{background:#fff;border:1px solid var(--gsg-line);border-radius:var(--gsg-radius);padding:28px;box-shadow:var(--gsg-shadow-sm);height:100%;display:flex;flex-direction:column;gap:14px}
.gsg-quote__stars{color:var(--gsg-amber);font-size:1.05rem;letter-spacing:2px}
.gsg-quote__text{color:var(--gsg-ink);font-size:1.02rem;line-height:1.65;font-style:italic;margin:0}
.gsg-quote__who{display:flex;align-items:center;gap:12px;margin-top:auto}
.gsg-quote__av{width:46px;height:46px;border-radius:50%;background:var(--gsg-primary-l);color:var(--gsg-primary-d);display:grid;place-items:center;font-weight:800}
.gsg-quote__who b{display:block;color:var(--gsg-ink)}
.gsg-quote__who small{color:var(--gsg-muted)}

/* ===== Area (Quận 12) ===== */
.gsg-area{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,48px);align-items:center}
.gsg-area__chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.gsg-chip{background:#fff;border:1px solid var(--gsg-line);border-radius:999px;padding:9px 16px;font-weight:600;color:var(--gsg-ink);font-size:.92rem;box-shadow:var(--gsg-shadow-sm)}
.gsg-area__img img{border-radius:22px;box-shadow:var(--gsg-shadow)}

/* ===== CTA band ===== */
.gsg-cta{background:linear-gradient(120deg,var(--gsg-primary),var(--gsg-primary-d));border-radius:28px;padding:clamp(32px,5vw,56px);color:#fff;position:relative;overflow:hidden}
.gsg-cta::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.08);top:-120px;right:-80px}
.gsg-cta h2{color:#fff;font-size:clamp(1.6rem,3.2vw,2.3rem);font-weight:800;margin:0 0 12px}
.gsg-cta p{color:rgba(255,255,255,.9);max-width:640px;margin:0 0 24px}
.gsg-cta__row{display:flex;flex-wrap:wrap;gap:14px}
.gsg-cta__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;position:relative;z-index:1}

/* ===== Form ===== */
.gsg-form{background:#fff;border-radius:22px;padding:26px;box-shadow:var(--gsg-shadow)}
.gsg-form h3{margin:0 0 4px;color:var(--gsg-ink);font-size:1.25rem;font-weight:800}
.gsg-form p.gsg-form__sub{margin:0 0 18px;font-size:.92rem}
.gsg-field{margin-bottom:14px}
.gsg-field label{display:block;font-weight:600;color:var(--gsg-ink);margin-bottom:6px;font-size:.9rem}
.gsg-field input,.gsg-field select,.gsg-field textarea{width:100%;padding:13px 15px;border:1.5px solid var(--gsg-line);border-radius:12px;font-family:inherit;font-size:.98rem;color:var(--gsg-ink);background:#fbfdfd;transition:border-color .15s}
.gsg-field input:focus,.gsg-field select:focus,.gsg-field textarea:focus{outline:none;border-color:var(--gsg-primary)}
.gsg-form .gsg-btn{width:100%;justify-content:center;margin-top:6px}

/* ===== Info strip (contact) ===== */
.gsg-infogrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gsg-info{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--gsg-line);border-radius:var(--gsg-radius);padding:22px;box-shadow:var(--gsg-shadow-sm)}
.gsg-info__ic{width:46px;height:46px;flex:0 0 auto;border-radius:12px;background:var(--gsg-primary-l);display:grid;place-items:center;font-size:1.35rem}
.gsg-info b{display:block;color:var(--gsg-ink);margin-bottom:2px}
.gsg-info a,.gsg-info span{color:var(--gsg-muted);text-decoration:none}

/* ===== Floating CTA ===== */
.gsg-float-cta{position:fixed;right:16px;bottom:18px;z-index:9990;display:flex;flex-direction:column;gap:10px}
.gsg-fab{display:inline-flex;align-items:center;gap:10px;padding:11px 16px 11px 12px;border-radius:999px;text-decoration:none;font-weight:700;color:#fff;box-shadow:0 10px 24px -8px rgba(0,0,0,.4);transition:transform .16s}
.gsg-fab:hover{transform:translateY(-2px)}
.gsg-fab--zalo{background:#0068ff}
.gsg-fab--call{background:var(--gsg-accent)}
.gsg-fab__icon{display:grid;place-items:center;min-width:26px;height:26px;background:rgba(255,255,255,.22);border-radius:50%;font-size:.78rem;font-weight:800}
.gsg-fab__label{font-size:.95rem}
@keyframes gsgPulse{0%{box-shadow:0 0 0 0 rgba(255,122,69,.5)}70%{box-shadow:0 0 0 14px rgba(255,122,69,0)}100%{box-shadow:0 0 0 0 rgba(255,122,69,0)}}
.gsg-fab--call{animation:gsgPulse 2.2s infinite}

/* ===== Reveal animations ===== */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
[data-reveal="fade"]{transform:none}
[data-reveal="zoom"]{transform:scale(.94)}
[data-reveal="left"]{transform:translateX(-30px)}
[data-reveal="right"]{transform:translateX(30px)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ===== Footer helper ===== */
.gsg-landing .gsg-section:last-of-type{padding-bottom:clamp(56px,7vw,96px)}

/* ===== Responsive ===== */
@media(max-width:960px){
  .gsg-hero__grid{grid-template-columns:1fr;gap:30px}
  .gsg-hero__media{order:-1}
  .gsg-stats{grid-template-columns:repeat(2,1fr)}
  .gsg-grid--4{grid-template-columns:repeat(2,1fr)}
  .gsg-grid--3{grid-template-columns:repeat(2,1fr)}
  .gsg-steps{grid-template-columns:repeat(2,1fr)}
  .gsg-step:not(:last-child)::after{display:none}
  .gsg-area,.gsg-cta__grid{grid-template-columns:1fr}
  .gsg-infogrid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .gsg-grid--4,.gsg-grid--3,.gsg-grid--2,.gsg-stats,.gsg-steps{grid-template-columns:1fr}
  .gsg-hero__badge--tl{left:6px}.gsg-hero__badge--br{right:6px}
  .gsg-fab__label{display:none}
  .gsg-btn{padding:14px 22px}
}
@media(prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1!important;transform:none!important;transition:none}
  .gsg-fab--call{animation:none}
}