/* ============================================================
   AGERO CLONE — styles.css
   ------------------------------------------------------------
   Mục lục:
     0. @font-face (font local trong assets/fonts)
     1. Design tokens  -> :root  (+ [data-theme="dark"] cho DARK MODE)
     2. Reset + base
     3. Tiện ích chung (.container, .btn, .eyebrow…)
     4. Navbar + Mobile menu
     5. Hero
     6. Marquee
     7. Intro / Stats
     8. Works
     9. Services
     10. About
     11. Pricing
     12. FAQ
     13. Contact
     14. Footer
     15. Theme toggle button
   ============================================================ */

/* ===== 0. FONT LOCAL ===== */
@font-face{
  font-family:'Inter'; font-style:normal; font-weight:400;
  font-display:swap; src:url('../assets/fonts/inter-400.woff2') format('woff2');
}
@font-face{
  font-family:'Inter'; font-style:normal; font-weight:500;
  font-display:swap; src:url('../assets/fonts/inter-500.woff2') format('woff2');
}
@font-face{
  font-family:'Inter'; font-style:normal; font-weight:600;
  font-display:swap; src:url('../assets/fonts/inter-600.woff2') format('woff2');
}
/* Cal Sans = font display đúng như trang gốc */
@font-face{
  font-family:'Cal Sans'; font-style:normal; font-weight:400;
  font-display:swap; src:url('../assets/fonts/cal-sans-400.woff2') format('woff2');
}

/* ===== 1. DESIGN TOKENS ===== */
:root{
  --bg:        #dcdcdc;
  --surface:   #f0f0f0;
  --ink:       #131313;
  --ink-soft:  #5c5c5c;
  --accent:    #ff4d00;
  --dark:      #0c0c0c;
  --on-dark:   #ffffff;
  --line:      rgba(19,19,19,.12);
  --nav-bg:    rgba(255,255,255,.6);
  --nav-border:rgba(255,255,255,.5);

  --radius:24px;   /* khớp bo góc card của bản gốc (đo được 24px) */
  --maxw:1200px;
  --font-sans:'Inter', system-ui, sans-serif;
  --font-disp:'Cal Sans', 'Inter', sans-serif;
}

/* DARK MODE — chỉ cần đảo vài token, toàn trang tự đổi */
[data-theme="dark"]{
  --bg:        #0c0c0c;
  --surface:   #161616;
  --ink:       #f5f5f5;
  --ink-soft:  #9a9a9a;
  --dark:      #161616;
  --line:      rgba(255,255,255,.12);
  --nav-bg:    rgba(30,30,30,.6);
  --nav-border:rgba(255,255,255,.1);
}

/* ===== 2. RESET + BASE ===== */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  font-family:var(--font-sans);
  background:var(--bg); color:var(--ink); line-height:1.5;
  -webkit-font-smoothing:antialiased;
  transition:background .3s, color .3s; /* mượt khi đổi theme */
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }

/* ===== 3. TIỆN ÍCH CHUNG ===== */
.container{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:24px; }
section{ padding-block:96px; }
.eyebrow{ font-size:13px; color:var(--ink-soft); letter-spacing:.02em; }
.section-title{
  font-family:var(--font-disp); font-weight:400;
  font-size:clamp(34px,5vw,56px); line-height:1.05; letter-spacing:-.01em;
}
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 26px; border-radius:999px; font-size:15px; font-weight:500;
  cursor:pointer; border:1px solid transparent; transition:.25s; font-family:inherit;
}
/* nút "View Plans" — số đo đúng từ bản gốc: nền bán trong suốt + shadow 4 lớp */
.btn--dark{
  background:rgba(12,12,12,.82); color:#fff; padding:12px 20px; font-size:14px;
  box-shadow:0 3px 6px rgba(0,0,0,.19), 0 10px 10px rgba(0,0,0,.17),
             0 23px 14px rgba(0,0,0,.1), 0 41px 17px rgba(0,0,0,.03);
  /* HOVER (trích từ framer-motion gốc): spring scale bounce, ease overshoot */
  transition:transform .4s cubic-bezier(.34,1.56,.64,1), box-shadow .3s ease;
}
.btn--dark svg{ width:18px; height:18px;
  transition:transform .4s cubic-bezier(.34,1.56,.64,1); }
/* hover: nền GIỮ tối (như gốc), nút nảy nhẹ, mũi tên trượt phải */
.btn--dark:hover{ transform:scale(1.04);
  box-shadow:0 6px 10px rgba(0,0,0,.22), 0 16px 16px rgba(0,0,0,.16), 0 30px 18px rgba(0,0,0,.08); }
.btn--dark:hover svg{ transform:translateX(5px); }
/* thắng specificity của [data-reveal] (animations.css) để hover dùng đúng spring */
.hero .btn--dark{ transition:transform .4s cubic-bezier(.34,1.56,.64,1), box-shadow .3s ease; }
.btn--accent{ background:var(--accent); color:#fff; }
.btn--ghost{ background:transparent; border-color:var(--line); color:var(--ink); }

/* ===== 4. NAVBAR (trong suốt + notch trên + nút Contact — như bản gốc) ===== */
.nav{ position:sticky; top:0; z-index:50; margin-top:40px; }
.nav__inner{
  position:relative;
  display:flex; align-items:center; justify-content:space-between;
  padding:6px 4px;                /* navbar trong suốt, không pill */
}
/* tab "Available for New Projects" — pill tối gọn, nổi sát phía trên navbar */
.nav__notch{
  position:absolute; left:50%; transform:translateX(-50%);
  bottom:calc(100% - 4px);        /* sát ngay trên navbar */
  display:flex; align-items:center; gap:9px; white-space:nowrap;
  background:#2d2d2d; color:#fff; font-size:14px; letter-spacing:-.01em;
  padding:9px 18px; border-radius:13px;
}
/* dot trong notch: chấm xanh đơn giản, không quầng sáng */
.nav__notch .dot{ width:9px; height:9px; box-shadow:none; }
/* desktop: căn giữa nav (logo trái · nav giữa · Contact phải) */
@media(min-width:881px){
  .nav__inner{ display:grid; grid-template-columns:1fr auto 1fr; }
  .brand{ justify-self:start; }
  .nav__links{ justify-self:center; }
  .nav__right{ justify-self:end; }
}
/* nút Contact dạng pill xám đậm */
.nav__contact{
  background:#2d2d2d; color:#fff; padding:11px 24px; border-radius:999px;
  font-size:14px; letter-spacing:-.01em; transition:.25s;
}
.nav__contact:hover{ background:var(--accent); }
.brand{ display:flex; align-items:center; gap:10px; font-weight:600; font-size:18px; letter-spacing:-.02em; }
.brand .logo-dot{ width:22px; height:22px; border-radius:50%; background:var(--ink);
  display:grid; place-items:center; }
.brand .logo-dot::after{ content:''; width:9px; height:9px; border-radius:50%; background:var(--accent); }
.nav__links{ display:flex; gap:28px; font-size:14px; letter-spacing:-.01em; }
.nav__links a{ color:var(--ink-soft); transition:.2s; }
.nav__links a:hover{ color:var(--ink); }
.nav__right{ display:flex; align-items:center; gap:14px; }
.badge{ display:inline-flex; align-items:center; gap:8px; font-size:14px; letter-spacing:-.01em; color:var(--ink-soft); }
.dot{ width:8px; height:8px; border-radius:50%; background:#61c554;
  box-shadow:0 0 0 4px rgba(97,197,84,.25); }

/* nút hamburger — ẩn trên desktop */
.nav__burger{
  display:none; flex-direction:column; gap:5px; background:none; border:none;
  cursor:pointer; padding:8px;
}
.nav__burger span{ width:22px; height:2px; background:var(--ink); transition:.3s; border-radius:2px; }
/* khi mở: biến thành dấu X */
.nav.open .nav__burger span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav.open .nav__burger span:nth-child(2){ opacity:0; }
.nav.open .nav__burger span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ===== Mobile menu (drawer trượt xuống) ===== */
@media(max-width:880px){
  .nav__links{
    position:absolute; top:calc(100% + 10px); left:0; right:0;
    flex-direction:column; gap:4px; align-items:stretch;
    background:var(--surface); border:1px solid var(--line);
    border-radius:20px; padding:16px;
    /* mặc định ẩn */
    opacity:0; visibility:hidden; transform:translateY(-10px);
    transition:.25s;
  }
  .nav.open .nav__links{ opacity:1; visibility:visible; transform:translateY(0); }
  .nav__links a{ padding:12px 14px; border-radius:12px; font-size:17px; }
  .nav__links a:hover{ background:var(--bg); }
  .nav__burger{ display:flex; }
  .badge{ display:none; }
}

/* ===== 5. HERO ===== */
.hero{ padding-top:60px; padding-bottom:40px; text-align:center; }
.hero__top{ font-size:14px; color:var(--ink-soft); margin-bottom:28px; }
.hero h1{
  font-family:var(--font-disp); font-weight:400;
  font-size:clamp(48px,9vw,112px); line-height:1.0; letter-spacing:-.02em;
}
.hero h1 .hl{ color:var(--accent); }
.hero h1 .muted{ color:var(--ink-soft); }
.hero__sub{ max-width:560px; margin:30px auto 34px; color:var(--ink-soft); font-size:18px; }

/* ===== 5b. HERO inline images (nằm GIỮA chữ trong tiêu đề như bản gốc) ===== */
.hero{ position:relative; }
.hero-inline{
  display:inline-block; vertical-align:middle;
  width:.92em; height:.72em; object-fit:cover; border-radius:.12em;
  margin:0 .08em; transform:translateY(-.06em) rotate(-4deg);
  box-shadow:0 10px 26px rgba(0,0,0,.22);
}
.hero h1 .hero-inline:nth-of-type(2){ transform:translateY(-.06em) rotate(5deg); }

/* banner showcase lớn dưới CTA */
.hero-banner{ margin-top:60px; border-radius:var(--radius); overflow:hidden; }
.hero-banner img{ width:100%; display:block; }
@media(max-width:680px){ .hero-inline{ width:.8em; height:.62em; } .hero-banner{ margin-top:40px; } }

/* ===== 5c. CLIENT LOGOS strip ===== */
.clients{ border-block:1px solid var(--line); overflow:hidden; padding-block:28px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent); }
.clients__track{ display:inline-flex; gap:64px; align-items:center; white-space:nowrap;
  animation:scroll 26s linear infinite; }
.clients__track img{ height:28px; width:auto; opacity:.55; filter:saturate(0); }
[data-theme="dark"] .clients__track img{ filter:saturate(0) invert(1); opacity:.7; }

/* ===== 6. MARQUEE ===== */
.marquee{
  overflow:hidden; white-space:nowrap; border-block:1px solid var(--line); padding-block:20px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.marquee__track{ display:inline-flex; gap:48px; animation:scroll 22s linear infinite; }
.marquee__track span{
  font-family:var(--font-disp); font-size:26px; color:var(--ink);
  display:inline-flex; align-items:center; gap:48px;
}
.marquee__track span::after{ content:'✦'; color:var(--accent); font-size:16px; }
/* @keyframes scroll đã chuyển sang animations.css */

/* ===== 7. INTRO / STATS ===== */
.intro p.big{ font-family:var(--font-disp); font-size:clamp(26px,3.4vw,42px); line-height:1.25; max-width:900px; }
.intro .accent{ color:var(--accent); }
.tags{ display:flex; flex-wrap:wrap; gap:12px; margin-top:36px; }
.tag{ padding:8px 18px; border:1px solid var(--line); border-radius:999px; font-size:14px; color:var(--ink-soft); }

.stats{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.stat .num{ font-family:var(--font-disp); font-size:clamp(48px,7vw,86px); line-height:1; }
.stat .lbl{ color:var(--ink-soft); margin-top:8px; }
@media(max-width:720px){ .stats{ grid-template-columns:1fr; gap:40px; } }

/* ===== 7b. TESTIMONIALS (stats card + carousel + watermark) ===== */
.testimonials{ position:relative; }
/* chữ "Testimonials" mờ khổng lồ phía sau — hiện ĐỦ chữ, card đè nửa dưới */
.testimonials__watermark{
  font-family:var(--font-disp); font-weight:400;
  /* to hơn cho bằng 204px của gốc; letter-spacing âm để Cal Sans local (vốn rộng) vừa khít container */
  font-size:clamp(52px,15.5vw,200px); line-height:.82; text-align:center;
  letter-spacing:-.055em; white-space:nowrap;
  user-select:none;
  /* margin-bottom âm NHỎ: card chỉ đè ~25% đáy chữ, chữ hiện gần hết (giống bản gốc) */
  margin:28px 0 -3%;
  /* HIỆU ỨNG GỐC: text tô gradient (đậm ~25% ở đỉnh -> tan xuống đáy), clip vào chữ */
  color:var(--ink);
  background-image:linear-gradient(0deg, transparent 0%, color-mix(in srgb, currentColor 40%, transparent) 159%);
  -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}
.testimonials__grid{
  position:relative; z-index:1;   /* card nằm TRÊN watermark */
  display:grid; grid-template-columns:1fr 1.7fr; gap:20px;
}

/* TRÁI — card stats nền tối */
.testi-stats{
  position:relative; overflow:hidden;
  background:var(--dark); color:#fff; border-radius:var(--radius);
  padding:40px; display:flex; flex-direction:column; justify-content:space-between; gap:28px;
}
[data-theme="dark"] .testi-stats{ border:1px solid var(--line); }
/* video khói phủ kín card */
.testi-stats__bg{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  z-index:0; opacity:.5;
}
/* lớp tối nhẹ để số/chữ luôn đọc rõ trên video */
.testi-stats::after{
  content:''; position:absolute; inset:0; z-index:1;
  background:linear-gradient(180deg, rgba(12,12,12,.35), rgba(12,12,12,.7));
}
.testi-stat{ position:relative; z-index:2; }   /* số nổi trên video + lớp tối */
.testi-stat .num{ font-family:var(--font-disp); font-size:clamp(48px,6vw,76px); line-height:1; }
.testi-stat .lbl{ color:rgba(255,255,255,.6); margin-top:6px; }

/* PHẢI — carousel */
.testi-carousel{
  position:relative; border-radius:var(--radius); overflow:hidden; min-height:480px;
  color:#fff;
}
.testi-slide{
  position:absolute; inset:0; padding:36px;
  display:flex; flex-direction:column; justify-content:space-between;
  opacity:0; transition:opacity .6s ease; pointer-events:none;
}
.testi-slide.is-active{ opacity:1; pointer-events:auto; }
/* ảnh nền phủ kín slide */
.testi-bg{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
/* lớp gradient tối để chữ dễ đọc */
.testi-slide::after{
  content:''; position:absolute; inset:0; z-index:1;
  background:linear-gradient(to top, rgba(0,0,0,.8) 0%, rgba(0,0,0,.25) 50%, rgba(0,0,0,.1) 100%);
}
/* nội dung nổi lên trên ảnh + gradient */
.testi-count, .testi-slide blockquote, .testi-slide figcaption{ position:relative; z-index:2; }
.testi-count{ font-size:15px; letter-spacing:.04em; }
.testi-count em{ font-style:normal; opacity:.6; }
.testi-slide blockquote{
  font-family:var(--font-disp); font-size:clamp(24px,2.6vw,34px); line-height:1.25;
  max-width:80%; margin-top:auto;
}
.testi-slide figcaption{ margin-top:22px; }
.testi-slide figcaption b{ display:block; font-size:16px; }
.testi-slide figcaption span{ font-size:14px; opacity:.7; }

/* nút ‹ › */
.testi-nav{ position:absolute; right:24px; bottom:24px; z-index:3; display:flex; gap:12px; }
.testi-arrow{
  width:52px; height:52px; border-radius:50%; cursor:pointer;
  background:rgba(255,255,255,.15); border:1px solid rgba(255,255,255,.3);
  backdrop-filter:blur(6px); display:grid; place-items:center; transition:.2s;
}
.testi-arrow:hover{ background:var(--accent); border-color:var(--accent); }
.testi-arrow img{ width:18px; height:18px; filter:brightness(0) invert(1); }

@media(max-width:880px){
  .testimonials__grid{ grid-template-columns:1fr; }
  .testi-stats{ flex-direction:row; flex-wrap:wrap; }
  .testi-carousel{ min-height:420px; }
}

/* ===== 10b. AWARDS ===== */
.award-row{ display:grid; grid-template-columns:1fr auto 1fr; gap:24px; align-items:center;
  padding:24px 4px; border-bottom:1px solid var(--line); }
.award-row .name{ font-family:var(--font-disp); font-size:28px; }
.award-row .desc{ color:var(--ink-soft); font-size:15px; text-align:center; }
.award-row .proj{ text-align:right; font-size:15px; color:var(--accent); }
@media(max-width:720px){ .award-row{ grid-template-columns:1fr; gap:6px; text-align:left; }
  .award-row .desc,.award-row .proj{ text-align:left; } }

/* ===== 8. WORKS ===== */
.works .head{ display:flex; justify-content:space-between; align-items:end; margin-bottom:40px; gap:20px; flex-wrap:wrap; }
.works .head p{ max-width:380px; color:var(--ink-soft); }
.work-card{
  background:var(--dark); color:var(--on-dark); border-radius:var(--radius);
  padding:34px; display:grid; grid-template-columns:1.4fr 1fr; gap:24px; margin-bottom:20px;
}
[data-theme="dark"] .work-card{ border:1px solid var(--line); }
.work-card h3{ font-family:var(--font-disp); font-weight:400; font-size:40px; }
.work-card .idx{ color:rgba(255,255,255,.5); font-size:14px; margin-bottom:18px; }
.work-card dl{ display:grid; grid-template-columns:auto 1fr; gap:8px 24px; font-size:14px; }
.work-card dt{ color:rgba(255,255,255,.55); }
.work-card .preview{
  background:linear-gradient(135deg,var(--accent),#ff8a3d); border-radius:12px; min-height:180px;
  display:flex; align-items:center; justify-content:center; overflow:hidden;
  font-family:var(--font-disp); font-size:34px; color:#fff;
}
.work-card .preview img{ width:100%; height:100%; object-fit:cover; }

/* ảnh founder + logo */
.brand img{ height:26px; width:auto; display:block; }
.founder-img{
  width:120px; height:120px; border-radius:50%; object-fit:cover;
  border:2px solid var(--line); margin-bottom:24px;
}
@media(max-width:720px){ .work-card{ grid-template-columns:1fr; } }

/* ===== 9. SERVICES (layout từng hàng giống bản gốc) =====
   Mỗi hàng: [Tên dịch vụ] | [Ảnh mockup + tags] | [Mô tả + Starts at + Timeline] */
.svc-list{ margin-top:40px; }
.svc-row{
  display:grid; grid-template-columns:200px 1.5fr 1fr; gap:48px; align-items:start;
  padding-block:56px; border-top:1px solid var(--line);
}
.svc-row__name{ font-size:22px; font-weight:600; }

/* cột giữa: ảnh + hàng tags */
.svc-row__media img{
  width:100%; border-radius:16px; display:block;
  box-shadow:0 24px 60px rgba(0,0,0,.14);
}
.svc-row__tags{ display:flex; flex-wrap:wrap; gap:10px; justify-content:center; margin-top:22px; }
.svc-row__tags span{
  padding:9px 18px; border:1px solid var(--line); border-radius:999px;
  font-size:14px; color:var(--ink-soft);
}

/* cột phải: mô tả + bảng meta */
.svc-row__desc{ font-size:18px; color:var(--ink-soft); line-height:1.45; }
.svc-meta{ margin-top:36px; }
.svc-meta__row{
  display:flex; justify-content:space-between; align-items:center;
  padding-block:18px; border-top:1px solid var(--line); font-size:16px;
}
.svc-meta__row span:first-child{ color:var(--ink-soft); }
.svc-meta__row span:last-child{ font-weight:500; }

@media(max-width:980px){
  .svc-row{ grid-template-columns:1fr; gap:24px; padding-block:40px; }
  .svc-row__tags{ justify-content:flex-start; }
}

/* ===== 10. ABOUT ===== */
.about-sub{ max-width:760px; color:var(--ink-soft); font-size:18px; }
.timeline .num{ font-size:24px !important; font-family:var(--font-sans) !important; }

/* ===== 11. PRICING (card full-width, 2 cột bên trong — giống bản gốc) ===== */
.price-list{ display:grid; gap:24px; margin-top:40px; }
.price-card{
  position:relative; overflow:hidden;
  border-radius:var(--radius); background:var(--surface); padding:44px;
  display:grid; grid-template-columns:1fr 1fr; gap:48px;
}
/* Premium: nền tối + quầng sáng cam ở đáy */
.price-card.featured{ background:#0c0c0c; color:#fff; }
.price-card.featured::after{
  content:''; position:absolute; left:0; right:0; bottom:-25%; height:80%;
  background:radial-gradient(65% 100% at 50% 100%, rgba(255,77,0,.85), rgba(255,77,0,0) 68%);
  pointer-events:none;
}
.price-card > *{ position:relative; z-index:1; }  /* nội dung nổi trên gradient */

/* cột trái */
.price-left{ display:flex; flex-direction:column; }
.price-icon{
  width:52px; height:52px; border-radius:14px; background:var(--ink); color:#fff;
  display:grid; place-items:center; margin-bottom:30px;
}
.price-card.featured .price-icon{ background:rgba(255,255,255,.12); }
.price-left h3{ font-size:22px; font-weight:600; margin-bottom:14px; }
.price-desc{ color:var(--ink-soft); font-size:15px; max-width:330px; line-height:1.5; }
.price-card.featured .price-desc{ color:rgba(255,255,255,.6); }
.price-delivery{
  margin-top:auto; padding-top:26px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; font-size:15px;
}
.price-delivery span:first-child{ color:var(--ink-soft); }
.price-card.featured .price-delivery{ border-color:rgba(255,255,255,.15); }
.price-card.featured .price-delivery span:first-child{ color:rgba(255,255,255,.6); }

/* cột phải */
.price-right{ display:flex; flex-direction:column; }
.price-amt{ font-family:var(--font-disp); font-size:64px; line-height:1; }
.price-amt small{ font-family:var(--font-sans); font-size:18px; color:var(--ink-soft); }
.price-amt .label{ display:block; font-family:var(--font-sans); font-size:18px; color:rgba(255,255,255,.65); margin-bottom:2px; }
.price-amt .orange{ color:var(--accent); }
.price-feats{ list-style:none; display:grid; gap:16px; margin:30px 0; }
.price-feats li{ display:flex; align-items:center; gap:12px; font-size:15px; }
.price-feats .check{
  width:22px; height:22px; border-radius:50%; background:var(--ink); color:#fff;
  display:grid; place-items:center; flex-shrink:0; font-size:11px;
}
.price-card.featured .price-feats .check{ background:rgba(255,255,255,.18); }
.price-btn{ margin-top:auto; }
.price-btn .btn{ width:100%; justify-content:center; background:var(--ink); color:#fff; }
.price-btn .btn:hover{ background:var(--accent); }
.price-card.featured .price-btn .btn{ background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.2); }
.price-card.featured .price-btn .btn:hover{ background:var(--accent); border-color:var(--accent); }

@media(max-width:820px){ .price-card{ grid-template-columns:1fr; gap:30px; padding:32px; } }

/* ===== 12. FAQ ===== */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; text-align:left; background:none; border:none; cursor:pointer;
  font-size:20px; font-weight:500; color:var(--ink);
  padding:24px 0; display:flex; justify-content:space-between; gap:16px; font-family:var(--font-sans);
}
.faq-q .sign{ color:var(--accent); transition:.3s; }
.faq-item.open .faq-q .sign{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .35s ease; color:var(--ink-soft); }
.faq-item.open .faq-a{ max-height:200px; }
.faq-a p{ padding-bottom:24px; }

/* ===== 13. CONTACT (watermark + card 2 cột + form gạch chân + marquee email) ===== */
.contact-section{ position:relative; }
.contact-watermark{
  font-family:var(--font-disp); font-weight:400;
  font-size:clamp(48px,13vw,165px); line-height:.85; text-align:center;
  letter-spacing:-.02em; white-space:nowrap;
  user-select:none; margin:0 0 -6%;
  /* HIỆU ỨNG GỐC: text tô gradient (đậm ~25% ở đỉnh -> tan xuống đáy), clip vào chữ */
  color:var(--ink);
  background-image:linear-gradient(0deg, transparent 0%, color-mix(in srgb, currentColor 40%, transparent) 159%);
  -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}
.contact{ position:relative; overflow:hidden; background:var(--dark); color:#fff; border-radius:32px; }
[data-theme="dark"] .contact{ border:1px solid var(--line); }
.contact__bg{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.22; z-index:0; }
.contact__inner{
  position:relative; z-index:1;
  display:grid; grid-template-columns:1fr 1fr; gap:60px; padding:64px 56px 90px;
}
.contact__left h2{ font-family:var(--font-disp); font-weight:400; font-size:clamp(34px,4.5vw,56px); line-height:1.05; }
.contact__left p{ color:rgba(255,255,255,.7); margin-top:18px; font-size:16px; }

.contact__form{ display:flex; flex-direction:column; }
.contact__form label{ font-size:15px; color:#fff; margin-bottom:8px; }
.contact__form input,.contact__form textarea{
  width:100%; background:transparent; border:none; border-bottom:1px solid rgba(255,255,255,.25);
  color:#fff; font-size:15px; font-family:inherit; padding:6px 0 14px; margin-bottom:26px; resize:none;
}
.contact__form input:focus,.contact__form textarea:focus{ outline:none; border-bottom-color:var(--accent); }
.contact__form input::placeholder,.contact__form textarea::placeholder{ color:rgba(255,255,255,.4); }
.contact__form .btn{ justify-content:center; background:#f0f0f0; color:var(--ink); margin-top:8px; padding:16px; }
.contact__form .btn:hover{ background:var(--accent); color:#fff; }

/* marquee email chạy ngang ở đáy card */
.contact__marquee{ position:absolute; left:0; right:0; bottom:0; z-index:1; overflow:hidden;
  padding:18px 0; border-top:1px solid rgba(255,255,255,.1); white-space:nowrap; }
.contact__marquee-track{ display:inline-flex; align-items:center; gap:26px; animation:scroll 30s linear infinite; }
.contact__marquee-track span{ font-size:22px; color:rgba(255,255,255,.55); }
.contact__marquee-track .x{ color:var(--accent); font-size:14px; }

@media(max-width:760px){ .contact__inner{ grid-template-columns:1fr; gap:32px; padding:40px 28px 80px; } }

/* ===== 14. FOOTER (card tối + quầng cam đáy + wordmark Agero) ===== */
.footer{
  position:relative; overflow:hidden;
  background:#0c0c0c; color:#fff;
  border-radius:32px 32px 0 0; margin-top:40px;
  padding-top:64px; min-height:560px;
}
/* quầng cam toả từ đáy lên */
.footer::after{
  content:''; position:absolute; left:0; right:0; bottom:0; height:70%;
  background:radial-gradient(95% 120% at 50% 135%, #ff4d00 0%, rgba(255,77,0,.7) 30%, rgba(255,77,0,.2) 55%, rgba(255,77,0,0) 75%);
  pointer-events:none; z-index:1;
}
.footer__inner{ position:relative; z-index:3; }
.footer__cols{ display:grid; grid-template-columns:repeat(3,minmax(0,200px)); gap:30px; }
.footer h4{ font-size:14px; color:rgba(255,255,255,.55); margin-bottom:18px; }
.footer ul{ list-style:none; display:grid; gap:12px; font-size:18px; font-weight:500; }
.footer ul a{ color:#fff; transition:.2s; }
.footer ul a:hover{ color:var(--accent); }
.footer__bottom{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
  margin-top:56px; font-size:14px; color:rgba(255,255,255,.6);
}
.footer__top{ color:rgba(255,255,255,.6); }
.footer__top:hover{ color:var(--accent); }
/* chữ Agero khổng lồ ở đáy, mép dưới bị cắt */
.footer__wordmark{
  position:absolute; left:50%; bottom:-.18em; transform:translateX(-50%);
  z-index:2; font-family:var(--font-disp); font-weight:400;
  font-size:clamp(120px,27vw,400px); line-height:.8; white-space:nowrap; letter-spacing:-.02em;
  background:linear-gradient(180deg,#fff 30%,rgba(255,255,255,.35));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
@media(max-width:720px){ .footer__cols{ grid-template-columns:1fr 1fr; } .footer{ min-height:420px; } }

/* ===== 15. THEME =====
   Không còn nút toggle — đổi sáng/tối bằng phím tắt Ctrl+T (xem js/main.js).
   Toàn bộ token theme nằm ở mục 1 ([data-theme="dark"]). */