:root {
  --bg-dark: #0a0314;
  --bg-dark-card: #130724;
  --bg-dark-card2: #1b0a33;
  --bg-light: #f7f3fd;
  --bg-light-card: #ffffff;
  --p950: #0a0314;
  --pu: #7c0fd1;
  --pu2: #a426e6;
  --pu3: #c64bff;
  --or: #f5851e;
  --or2: #ffa51f;
  --ink: #170b26;
  --ink2: #4f4463;
  --ink3: #8a7f9e;
  --lav: #f1e6fc;
  --line: #e2d2f5;
  --line-dark: rgba(255, 255, 255, 0.12);
  --font-main: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --wrap: 1240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-main); color: var(--ink); background: var(--bg-light); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font-family: inherit; }

.wrap { width: min(var(--wrap), 100% - 40px); margin-inline: auto; position: relative; }

/* ── HEADER ── */
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(10, 3, 20, 0.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255, 255, 255, 0.08); transition: all 0.3s var(--ease); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 900; font-size: 26px; color: #fff; letter-spacing: -0.02em; }
.logo-icon { width: 38px; height: 38px; border-radius: 10px; background: linear-gradient(135deg, var(--pu), var(--or)); display: grid; place-items: center; color: #fff; font-size: 20px; font-weight: 900; box-shadow: 0 0 16px rgba(198, 75, 255, 0.6); }
.logo-text span { background: linear-gradient(120deg, #fff, var(--or2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.logo-badge { font-family: var(--font-mono); font-size: 10px; font-weight: 700; color: #e9c8ff; background: rgba(124, 15, 209, 0.3); border: 1px solid rgba(198, 75, 255, 0.4); padding: 2px 6px; border-radius: 6px; margin-left: 6px; }

.nav-desktop { display: flex; align-items: center; gap: 8px; }
.nav-link { display: flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 10px; font-size: 15px; font-weight: 600; color: #d6c6ea; transition: all 0.2s ease; }
.nav-link:hover, .nav-link.active { color: #fff; background: rgba(255, 255, 255, 0.07); transform: translateY(-1px); }
.nav-link .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--or2); opacity: 0; transition: opacity 0.2s; }
.nav-link:hover .dot { opacity: 1; }

.header-actions { display: flex; align-items: center; gap: 14px; }
.btn-cta { display: inline-flex; align-items: center; gap: 8px; padding: 10px 22px; border-radius: 12px; font-size: 14.5px; font-weight: 800; background: linear-gradient(135deg, var(--or2), var(--or)); color: #fff; box-shadow: 0 4px 18px rgba(245, 133, 30, 0.45); transition: all 0.3s var(--ease); border: none; cursor: pointer; }
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245, 133, 30, 0.7); }

/* ── MOBILE TOGGLE BUTTON ── */
.mobile-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(198, 75, 255, 0.3);
  border-radius: 10px;
  width: 44px;
  height: 44px;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: all 0.25s ease;
  color: #fff;
  z-index: 1001;
}
.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.mobile-toggle:hover {
  border-color: var(--pu);
  background: rgba(198, 75, 255, 0.15);
  transform: scale(1.05);
}
.mobile-toggle:active {
  transform: scale(0.95);
}

/* ── HERO SECTION ── */
.hero { background: var(--p950); color: #fff; padding: 130px 0 90px; position: relative; overflow: hidden; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -2; background: radial-gradient(55% 65% at 76% 46%, rgba(164, 38, 230, 0.45), transparent 70%), radial-gradient(45% 55% at 6% 0%, rgba(124, 15, 209, 0.4), transparent 70%), radial-gradient(38% 42% at 98% 100%, rgba(245, 133, 30, 0.25), transparent 72%); }
.hero-grid { position: absolute; inset: 0; z-index: -1; pointer-events: none; background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(ellipse 70% 80% at 62% 45%, #000 25%, transparent 78%); -webkit-mask-image: radial-gradient(ellipse 70% 80% at 62% 45%, #000 25%, transparent 78%); }

.hero-in { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: center; }
.hero-kick { font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 10px; color: #e9c8ff; background: rgba(124, 15, 209, 0.25); border: 1px solid rgba(198, 75, 255, 0.35); padding: 6px 14px; border-radius: 999px; margin-bottom: 20px; }
.hero-kick::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--or2); box-shadow: 0 0 0 4px rgba(255, 165, 31, 0.25); animation: pulseDot 2s infinite; }
@keyframes pulseDot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.3); } }

.hero-h1 { font-size: clamp(34px, 3.8vw, 54px); font-weight: 900; line-height: 1.2; letter-spacing: -0.03em; color: #fff; margin-bottom: 20px; }
.gradient-text { background: linear-gradient(100deg, #e2b3ff 0%, #c64bff 42%, #ffab4a 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }

.hero-quote { padding: 8px 0 8px 18px; border-left: 3px solid var(--or); margin-bottom: 22px; }
.hero-quote span { display: block; font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #c3a8df; }
.hero-quote strong { display: block; margin-top: 4px; font-size: clamp(22px, 2.2vw, 30px); font-weight: 900; color: #fff; }

.hero-lede { font-size: 17px; line-height: 1.7; color: #d9cbe9; margin-bottom: 32px; }
.hero-lede b { color: #fff; font-weight: 700; }
.hero-lede mark { background: linear-gradient(transparent 60%, rgba(245, 133, 30, 0.5) 60%); color: #fff; padding: 0 4px; }

.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 40px; }
.btn-hero-primary { display: inline-flex; align-items: center; gap: 10px; padding: 15px 30px; border-radius: 14px; font-weight: 800; font-size: 16px; background: linear-gradient(135deg, var(--or2), var(--or)); color: #fff; box-shadow: 0 10px 30px -8px rgba(245, 133, 30, 0.7); }
.btn-hero-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px -8px rgba(245, 133, 30, 0.9); }
.btn-hero-secondary { display: inline-flex; align-items: center; gap: 10px; padding: 15px 28px; border-radius: 14px; font-weight: 700; font-size: 16px; color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.25); background: rgba(255, 255, 255, 0.05); }
.btn-hero-secondary:hover { border-color: #fff; background: rgba(255, 255, 255, 0.12); }

/* Stats Bar */
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-dark); padding-top: 28px; gap: 20px; }
.hero-stat b { display: block; font-family: var(--font-mono); font-size: clamp(32px, 3.2vw, 44px); font-weight: 800; color: #fff; line-height: 1; }
.hero-stat span { display: block; font-size: 14px; color: #c3a8df; margin-top: 6px; }

/* ── ORBIT VISUALIZATION ── */
.orbit-wrap { position: relative; width: 100%; aspect-ratio: 1/1; max-width: 520px; margin: 0 auto; display: grid; place-items: center; }
.orbit-svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.orbit-core { position: absolute; width: 150px; height: 150px; border-radius: 50%; z-index: 10; display: grid; place-items: center; text-align: center; background: radial-gradient(circle at 35% 30%, #e0a4ff 0%, #a426e6 36%, #5d10ad 70%, #2a0754 100%); box-shadow: 0 0 0 10px rgba(164, 38, 230, 0.15), 0 0 0 24px rgba(164, 38, 230, 0.08), 0 20px 60px rgba(164, 38, 230, 0.7); }
.orbit-core b { font-size: 22px; font-weight: 900; color: #fff; line-height: 1.1; }
.orbit-core small { display: block; font-family: var(--font-mono); font-size: 10px; color: #f3dfff; letter-spacing: 0.1em; text-transform: uppercase; margin-top: 4px; }
.orbit-node { position: absolute; width: 62px; height: 62px; border-radius: 50%; background: #fff; border: 2.5px solid #fff; box-shadow: 0 8px 24px rgba(0,0,0,0.4); display: grid; place-items: center; font-size: 24px; cursor: pointer; transition: all 0.3s var(--ease); z-index: 5; }
.orbit-node:hover { transform: scale(1.2); box-shadow: 0 0 24px var(--pu3); z-index: 20; }
.orbit-node .tooltip { position: absolute; bottom: calc(100% + 10px); left: 50%; transform: translateX(-50%); background: rgba(20, 6, 38, 0.95); border: 1px solid rgba(198, 75, 255, 0.5); padding: 5px 12px; border-radius: 8px; font-size: 12px; font-weight: 700; color: #fff; white-space: nowrap; pointer-events: none; opacity: 0; transition: opacity 0.2s; }
.orbit-node:hover .tooltip { opacity: 1; }

/* ── SECTION HEADER ── */
.sec-header { text-align: center; max-width: 820px; margin: 0 auto 50px; }
.sec-badge { font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--pu); background: #eee4fa; padding: 6px 14px; border-radius: 999px; display: inline-block; margin-bottom: 14px; }
.sec-h2 { font-size: clamp(28px, 3.2vw, 44px); font-weight: 900; line-height: 1.25; letter-spacing: -0.025em; color: var(--ink); margin-bottom: 16px; }
.sec-desc { font-size: 17px; color: var(--ink2); line-height: 1.65; }

/* ── SECTION: DANH SÁCH BỘ AI AGENT (Mona Style Showcase) ── */
.sec-agents { background: var(--lav); padding: 90px 0; }
.agent-showcase { display: grid; grid-template-columns: 360px 1fr; gap: 40px; align-items: start; }
.agent-dock { position: sticky; top: 100px; background: linear-gradient(160deg, #1c0634 0%, #360c62 60%, #520f92 100%); border-radius: 24px; padding: 30px; color: #fff; box-shadow: 0 30px 60px -20px rgba(60, 10, 110, 0.6); border: 1px solid rgba(255, 255, 255, 0.1); }
.agent-dock-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: rgba(245, 133, 30, 0.25); border: 1px solid var(--or); font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: #fff; text-transform: uppercase; }
.agent-dock-icon { width: 90px; height: 90px; border-radius: 50%; background: #fff; display: grid; place-items: center; font-size: 44px; margin: 20px 0; box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.15), 0 0 0 14px rgba(198, 75, 255, 0.15); }
.agent-dock-title { font-size: 26px; font-weight: 900; margin-bottom: 8px; color: #fff; }
.agent-dock-role { font-size: 15px; color: #d6c0ee; line-height: 1.5; margin-bottom: 24px; }
.agent-dock-meta { border-top: 1px solid rgba(255, 255, 255, 0.12); padding-top: 18px; display: flex; flex-direction: column; gap: 10px; font-size: 13.5px; }
.agent-dock-meta div { display: flex; justify-content: space-between; color: #c9b1e3; }
.agent-dock-meta b { color: #fff; }
.agent-dock-btn { display: block; text-align: center; margin-top: 24px; padding: 13px; border-radius: 12px; background: var(--or); color: #fff; font-weight: 800; font-size: 15px; }
.agent-dock-btn:hover { background: var(--or2); }

.agent-list { display: flex; flex-direction: column; gap: 16px; }
.agent-item { background: #fff; border-radius: 20px; padding: 24px 28px; border: 1.5px solid var(--line); display: grid; grid-template-columns: 70px 1fr auto; gap: 24px; align-items: center; cursor: pointer; transition: all 0.3s var(--ease); position: relative; }
.agent-item:hover, .agent-item.active { border-color: var(--pu); box-shadow: 0 16px 36px -10px rgba(124, 15, 209, 0.25); transform: translateX(6px); }
.agent-item-avatar { width: 68px; height: 68px; border-radius: 18px; background: #f8f3ff; border: 1px solid #ebdcfc; display: grid; place-items: center; font-size: 32px; flex-shrink: 0; }
.agent-item-content h3 { font-size: 20px; font-weight: 800; color: var(--ink); margin-bottom: 4px; display: flex; align-items: center; gap: 10px; }
.agent-tag { font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; padding: 2px 8px; border-radius: 6px; text-transform: uppercase; }
.tag-live { background: #d7f3e4; color: #0d7040; }
.tag-hot { background: #ffe6cc; color: #a14704; }
.tag-new { background: #e8d3ff; color: #6a0cb3; }
.agent-item-content p { font-size: 14.5px; color: var(--ink2); margin-bottom: 8px; }
.agent-item-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.agent-item-tags span { font-size: 12px; background: #f2eafd; color: var(--pu); padding: 2px 9px; border-radius: 6px; font-weight: 600; }
.agent-item-action .btn-view { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 10px; font-weight: 700; font-size: 13.5px; background: #f4ebff; color: var(--pu); transition: all 0.2s; }
.agent-item:hover .btn-view { background: var(--pu); color: #fff; }

/* ── SECTION: DỊCH VỤ AI ── */
.sec-services { padding: 90px 0; background: #fff; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 32px 28px; transition: all 0.3s var(--ease); display: flex; flex-direction: column; position: relative; overflow: hidden; }
.service-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--pu), var(--or)); opacity: 0; transition: opacity 0.3s; }
.service-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px -15px rgba(124, 15, 209, 0.15); border-color: var(--pu2); }
.service-card:hover::before { opacity: 1; }
.service-icon { width: 56px; height: 56px; border-radius: 14px; background: #f4ebff; display: grid; place-items: center; font-size: 28px; margin-bottom: 20px; color: var(--pu); }
.service-title { font-size: 21px; font-weight: 800; color: var(--ink); margin-bottom: 12px; }
.service-desc { font-size: 15px; color: var(--ink2); line-height: 1.6; margin-bottom: 20px; flex-grow: 1; }
.service-features { border-top: 1px solid #f0e6fc; padding-top: 18px; margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.service-features li { font-size: 13.5px; color: #433857; display: flex; align-items: center; gap: 8px; }
.service-features li::before { content: "✓"; color: var(--or); font-weight: 800; }
.service-btn { font-size: 14px; font-weight: 700; color: var(--pu); display: inline-flex; align-items: center; gap: 6px; }
.service-btn:hover { gap: 10px; color: var(--or); }

/* ── SECTION: KHOÁ HỌC AI ── */
.sec-courses { padding: 90px 0; background: var(--bg-dark); color: #fff; position: relative; overflow: hidden; }
.sec-courses::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 80% 20%, rgba(124, 15, 209, 0.25), transparent 60%); pointer-events: none; }
.sec-courses .sec-h2 { color: #fff; }
.sec-courses .sec-desc { color: #c9b8e0; }
.sec-courses .sec-badge { background: rgba(124, 15, 209, 0.4); color: #e9c8ff; border: 1px solid rgba(198, 75, 255, 0.4); }
.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.course-card { background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 20px; padding: 32px 26px; backdrop-filter: blur(10px); display: flex; flex-direction: column; transition: all 0.3s; }
.course-card:hover { transform: translateY(-5px); border-color: var(--pu3); background: rgba(255, 255, 255, 0.08); box-shadow: 0 20px 40px -10px rgba(124, 15, 209, 0.5); }
.course-tag { font-family: var(--font-mono); font-size: 11px; font-weight: 700; color: var(--or2); text-transform: uppercase; margin-bottom: 12px; }
.course-title { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 12px; line-height: 1.35; }
.course-desc { font-size: 14.5px; color: #cfbfdf; line-height: 1.6; margin-bottom: 20px; flex-grow: 1; }
.course-meta { display: flex; justify-content: space-between; font-size: 13px; color: #a994c2; border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 14px 0; margin-bottom: 18px; }
.course-btn { text-align: center; padding: 12px; border-radius: 10px; background: linear-gradient(135deg, var(--pu), var(--pu2)); color: #fff; font-weight: 700; font-size: 14.5px; }
.course-btn:hover { background: linear-gradient(135deg, var(--pu2), var(--pu3)); }

/* ── SECTION: PHẦN MỀM AI ── */
.sec-software { padding: 90px 0; background: #fff; }
.software-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.software-card { background: #faf7ff; border: 1px solid #ebdcfc; border-radius: 18px; padding: 26px 22px; transition: all 0.25s; text-align: center; }
.software-card:hover { background: #fff; transform: translateY(-4px); box-shadow: 0 14px 30px -10px rgba(124, 15, 209, 0.2); border-color: var(--pu); }
.software-icon { width: 56px; height: 56px; border-radius: 14px; background: #fff; display: grid; place-items: center; font-size: 30px; margin: 0 auto 16px; box-shadow: 0 4px 14px rgba(70, 20, 120, 0.08); }
.software-name { font-size: 18px; font-weight: 800; color: var(--ink); margin-bottom: 8px; }
.software-desc { font-size: 13.5px; color: var(--ink2); line-height: 1.5; }

/* ── SECTION: BLOG & KIẾN THỨC ── */
.sec-blog { padding: 90px 0; background: var(--lav); }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card { background: #fff; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); display: flex; flex-direction: column; transition: all 0.3s; }
.blog-card:hover { transform: translateY(-5px); box-shadow: 0 16px 36px -10px rgba(60, 20, 100, 0.15); border-color: var(--pu); }
.blog-img-holder { aspect-ratio: 16/9; background: linear-gradient(135deg, #2d0c4d, #7c0fd1); display: grid; place-items: center; color: #fff; font-size: 38px; position: relative; }
.blog-badge { position: absolute; top: 12px; left: 12px; font-family: var(--font-mono); font-size: 11px; font-weight: 700; background: rgba(10, 3, 20, 0.85); color: #fff; padding: 4px 10px; border-radius: 6px; }
.blog-body { padding: 24px; flex-grow: 1; display: flex; flex-direction: column; }
.blog-date { font-size: 12.5px; color: var(--ink3); margin-bottom: 8px; }
.blog-title { font-size: 18px; font-weight: 800; line-height: 1.4; color: var(--ink); margin-bottom: 12px; flex-grow: 1; }
.blog-more { font-size: 14px; font-weight: 700; color: var(--pu); display: inline-flex; align-items: center; gap: 6px; }

/* ── SECTION: LIÊN HỆ ── */
.sec-contact { padding: 90px 0; background: #fff; }
.contact-in { display: grid; grid-template-columns: 1fr 1.15fr; gap: 50px; align-items: center; }
.contact-info-title { font-size: 34px; font-weight: 900; line-height: 1.25; margin-bottom: 16px; color: var(--ink); }
.contact-info-desc { font-size: 16.5px; color: var(--ink2); line-height: 1.65; margin-bottom: 30px; }
.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card { display: flex; align-items: center; gap: 18px; padding: 18px 22px; border-radius: 16px; background: #faf7ff; border: 1px solid #ebdcfc; }
.contact-card-icon { width: 48px; height: 48px; border-radius: 12px; background: linear-gradient(135deg, var(--pu), var(--or)); display: grid; place-items: center; color: #fff; font-size: 22px; flex-shrink: 0; }
.contact-card b { display: block; font-size: 16px; font-weight: 800; color: var(--ink); }
.contact-card span { font-size: 14px; color: var(--ink2); }

.contact-form-wrap { background: #faf7ff; border: 1px solid #ebdcfc; border-radius: 24px; padding: 36px 32px; box-shadow: 0 20px 50px -15px rgba(124, 15, 209, 0.1); }
.form-title { font-size: 24px; font-weight: 800; margin-bottom: 8px; color: var(--ink); }
.form-subtitle { font-size: 14.5px; color: var(--ink2); margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-full { margin-bottom: 16px; }
.form-input { width: 100%; padding: 13px 16px; border-radius: 12px; border: 1.5px solid #ded0f2; background: #fff; font-size: 15px; outline: none; transition: border-color 0.2s; }
.form-input:focus { border-color: var(--pu); box-shadow: 0 0 0 3px rgba(124, 15, 209, 0.15); }
.form-submit { width: 100%; padding: 15px; border-radius: 12px; background: linear-gradient(135deg, var(--or2), var(--or)); color: #fff; font-size: 16px; font-weight: 800; border: none; cursor: pointer; box-shadow: 0 6px 20px rgba(245, 133, 30, 0.4); transition: all 0.3s; }
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(245, 133, 30, 0.65); }

/* ── FOOTER ── */
.footer { background: var(--p950); color: #fff; padding: 80px 0 30px; border-top: 1px solid var(--line-dark); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-logo { font-size: 26px; font-weight: 900; margin-bottom: 16px; display: inline-flex; align-items: center; gap: 10px; }
.footer-desc { font-size: 14.5px; color: #c3b1dc; line-height: 1.65; margin-bottom: 20px; }
.footer-col h4 { font-size: 17px; font-weight: 800; margin-bottom: 20px; color: #fff; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: var(--or); }
.footer-links li { margin-bottom: 12px; }
.footer-links a { font-size: 14.5px; color: #c3b1dc; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-bottom { border-top: 1px solid var(--line-dark); padding-top: 30px; text-align: center; font-size: 14px; color: #8f7fa8; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .hero-in { grid-template-columns: 1fr; }
  .agent-showcase { grid-template-columns: 1fr; }
  .agent-dock { position: relative; top: 0; }
  .services-grid, .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .software-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-in { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
  .nav-desktop { display: none !important; }
  .header-actions .btn-cta { display: none !important; }
  .mobile-toggle { display: flex !important; }
}

@media (max-width: 768px) {
  .hero-h1 { font-size: 32px; }
  .hero-stats { grid-template-columns: 1fr; }
  .agent-item { grid-template-columns: 1fr; text-align: center; }
  .agent-item-avatar { margin: 0 auto; }
  .agent-item-tags { justify-content: center; }
  .services-grid, .courses-grid, .software-grid, .blog-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════════
   MOBILE DRAWER NAVIGATION & BACKDROP SYSTEM (GLOBAL OFF-CANVAS)
   ══════════════════════════════════════════════════════════════ */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 1, 10, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.32s ease, visibility 0.32s ease;
}
.drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(380px, 86vw);
  max-width: 100%;
  height: 100%;
  height: 100dvh;
  background: rgba(12, 5, 24, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid rgba(198, 75, 255, 0.28);
  box-shadow: -15px 0 45px rgba(0, 0, 0, 0.85), 0 0 30px rgba(124, 15, 209, 0.25);
  z-index: 100001;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.35s ease;
  overflow: hidden;
}
.mobile-drawer.active {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

body.drawer-open {
  overflow: hidden !important;
  touch-action: none;
}

.drawer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
  flex-shrink: 0;
}
.drawer-head .logo {
  text-decoration: none;
}

.drawer-close {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.drawer-close:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: rgba(239, 68, 68, 0.6);
  color: #fca5a5;
  transform: rotate(90deg);
}

.drawer-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.drawer-link {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16.5px;
  font-weight: 700;
  color: #ded0ee;
  padding: 13px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  text-decoration: none;
  transition: all 0.2s ease;
}
.drawer-link .nav-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
  color: var(--or2);
  opacity: 0.85;
}
.drawer-link:hover, .drawer-link.active {
  color: #fff;
  background: rgba(124, 15, 209, 0.25);
  border-color: rgba(198, 75, 255, 0.4);
  transform: translateX(4px);
}

.drawer-footer {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}
.drawer-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--or2), var(--or));
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(245, 133, 30, 0.45);
  transition: all 0.25s ease;
}
.drawer-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 133, 30, 0.7);
}
.drawer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.drawer-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: #c9b7e3;
  text-decoration: none;
  transition: color 0.2s ease;
}
.drawer-contact-item:hover {
  color: #fff;
}
.drawer-contact-item svg {
  color: var(--or2);
}

/* ── FLOATING CALL & ZALO WIDGET ── */
.floating-contact {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-end;
}

.float-btn {
  display: flex;
  align-items: center;
  position: relative;
  text-decoration: none;
  cursor: pointer;
  filter: drop-shadow(0 6px 18px rgba(0, 0, 0, 0.25));
  transition: transform 0.25s ease;
}

.float-btn:hover {
  transform: translateY(-3px) scale(1.05);
}

.float-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  position: relative;
  z-index: 2;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.float-zalo .float-icon {
  background: #0068ff;
}

.float-call .float-icon {
  background: linear-gradient(135deg, #10b981, #059669);
}

.float-pulse {
  position: absolute;
  right: 0;
  top: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}

.float-pulse-zalo {
  background: rgba(0, 104, 255, 0.5);
  animation: floatPulseWave 2s infinite ease-out;
}

.float-pulse-call {
  background: rgba(16, 185, 129, 0.55);
  animation: floatPulseWave 2s infinite ease-out 0.4s;
}

@keyframes floatPulseWave {
  0% { transform: scale(1); opacity: 0.85; }
  100% { transform: scale(1.85); opacity: 0; }
}

.float-label {
  position: absolute;
  right: 68px;
  background: rgba(16, 6, 32, 0.95);
  color: #fff;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 700;
  white-space: nowrap;
  pointer-events: none;
  border: 1px solid rgba(198, 75, 255, 0.4);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
  opacity: 0;
  transform: translateX(10px);
  transition: opacity 0.25s, transform 0.25s;
}

.float-btn:hover .float-label {
  opacity: 1;
  transform: translateX(0);
}

.form-alert {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 14.5px;
  margin-top: 16px;
  display: none;
}
.form-alert-success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}
.form-alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

@media (max-width: 768px) {
  .floating-contact {
    bottom: 20px;
    right: 16px;
    gap: 12px;
  }
  .float-icon {
    width: 48px;
    height: 48px;
  }
  .float-pulse {
    width: 48px;
    height: 48px;
  }
  .float-label {
    display: none;
  }
}

/* ═══ 7AI SEO BLOG SYSTEM ═══ */

/* Breadcrumb Strip */
.breadcrumb-strip {
  background: rgba(14, 5, 28, 0.95);
  border-bottom: 1px solid rgba(124, 15, 209, 0.15);
  padding: 105px 0 16px;
}
.breadcrumbs {
  font-size: 13.5px;
  color: #8c7aa8;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.breadcrumbs a {
  color: #c7a7f7;
  text-decoration: none;
  transition: color 0.2s;
}
.breadcrumbs a:hover {
  color: #00f5ff;
}
.bc-sep {
  color: #554470;
}
.bc-current {
  color: #f1eaff;
  font-weight: 600;
  max-width: 450px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Blog Hero Banner */
.blog-hero {
  background: radial-gradient(circle at 50% 0%, rgba(124, 15, 209, 0.35) 0%, rgba(10, 3, 20, 0.98) 70%);
  padding: 55px 0 45px;
  border-bottom: 1px solid rgba(124, 15, 209, 0.2);
  position: relative;
  overflow: hidden;
}
.blog-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(rgba(124, 15, 209, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 15, 209, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.blog-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 9999px;
  background: rgba(124, 15, 209, 0.25);
  border: 1px solid rgba(198, 75, 255, 0.4);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: #00f5ff;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}
.blog-hero-title {
  font-size: clamp(30px, 4.5vw, 50px);
  font-weight: 900;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.blog-hero-sub {
  font-size: clamp(16px, 1.8vw, 19px);
  color: #bfb2d8;
  max-width: 780px;
  margin: 0 auto 35px;
  line-height: 1.65;
}

/* Blog Search Form */
.blog-search-form {
  max-width: 620px;
  margin: 0 auto 35px;
}
.search-input-wrap {
  display: flex;
  align-items: center;
  background: rgba(18, 7, 36, 0.85);
  border: 1px solid rgba(198, 75, 255, 0.35);
  border-radius: 9999px;
  padding: 6px 8px 6px 20px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  transition: all 0.3s;
}
.search-input-wrap:focus-within {
  border-color: #00f5ff;
  box-shadow: 0 0 0 3px rgba(0, 245, 255, 0.2), 0 8px 30px rgba(124, 15, 209, 0.3);
}
.search-input-wrap svg {
  color: #8c7aa8;
  flex-shrink: 0;
  margin-right: 12px;
}
.search-field {
  flex-grow: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 15.5px;
  font-family: inherit;
}
.search-field::placeholder {
  color: #7b6a95;
}
.search-submit {
  background: linear-gradient(135deg, #7c0fd1, #9b28ec);
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 14.5px;
  cursor: pointer;
  transition: all 0.25s;
  flex-shrink: 0;
}
.search-submit:hover {
  background: linear-gradient(135deg, #00f5ff, #7c0fd1);
  box-shadow: 0 0 18px rgba(0, 245, 255, 0.4);
}

/* Category Filter Pills */
.category-pills-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 15px;
}
.cat-pill {
  padding: 8px 18px;
  border-radius: 9999px;
  background: rgba(28, 12, 54, 0.7);
  border: 1px solid rgba(124, 15, 209, 0.3);
  color: #d1c2eb;
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s;
}
.cat-pill:hover,
.cat-pill.active {
  background: #7c0fd1;
  color: #ffffff;
  border-color: #c64bff;
  box-shadow: 0 4px 18px rgba(124, 15, 209, 0.4);
}

/* Blog Content Section */
.blog-content-section {
  padding: 60px 0 80px;
  background: #0d041a;
}

/* Featured Card */
.blog-featured-card {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  background: rgba(20, 8, 40, 0.85);
  border: 1px solid rgba(124, 15, 209, 0.35);
  border-radius: 22px;
  overflow: hidden;
  margin-bottom: 50px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
  transition: all 0.35s;
}
.blog-featured-card:hover {
  border-color: #00f5ff;
  box-shadow: 0 25px 60px rgba(124, 15, 209, 0.25), 0 0 25px rgba(0, 245, 255, 0.15);
  transform: translateY(-4px);
}
.featured-img-holder {
  position: relative;
  min-height: 340px;
  background: linear-gradient(135deg, #240842, #5a0ca0);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.featured-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: #fff;
}
.feat-icon {
  font-size: 64px;
}
.feat-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: #00f5ff;
  background: rgba(0, 0, 0, 0.4);
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid rgba(0, 245, 255, 0.3);
}
.featured-content {
  padding: 40px 38px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.post-meta-mini {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13.5px;
  color: #9d8db8;
  margin-bottom: 14px;
}
.featured-title {
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 16px;
}
.featured-title a {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.2s;
}
.featured-title a:hover {
  color: #00f5ff;
}
.featured-excerpt {
  font-size: 15.5px;
  line-height: 1.7;
  color: #b5a4ce;
  margin-bottom: 24px;
}
.btn-read-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #00f5ff;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: gap 0.2s, color 0.2s;
}
.btn-read-more:hover {
  color: #fff;
  gap: 12px;
}

/* Articles Grid */
.blog-articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.blog-post-card {
  background: rgba(22, 9, 44, 0.8);
  border: 1px solid rgba(124, 15, 209, 0.25);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}
.blog-post-card:hover {
  transform: translateY(-6px);
  border-color: rgba(198, 75, 255, 0.6);
  box-shadow: 0 20px 45px rgba(124, 15, 209, 0.25);
}
.card-thumb-wrap {
  aspect-ratio: 16/9;
  position: relative;
  display: block;
  background: linear-gradient(135deg, #1f0738, #52088f);
  overflow: hidden;
  text-decoration: none;
}
.card-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.card-icon {
  font-size: 42px;
  margin-bottom: 4px;
}
.card-subtext {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #00f5ff;
}
.card-badge, .blog-cat-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(10, 3, 20, 0.85);
  color: #00f5ff;
  border: 1px solid rgba(0, 245, 255, 0.3);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
}
.card-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: #8c7aa8;
  margin-bottom: 12px;
}
.card-title {
  font-size: 18.5px;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 12px;
  flex-grow: 1;
}
.card-title a {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.2s;
}
.card-title a:hover {
  color: #c64bff;
}
.card-excerpt {
  font-size: 14.5px;
  line-height: 1.65;
  color: #a797be;
  margin-bottom: 20px;
}
.card-footer {
  border-top: 1px solid rgba(124, 15, 209, 0.15);
  padding-top: 14px;
}
.card-link {
  font-size: 14px;
  font-weight: 700;
  color: #00f5ff;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: gap 0.2s;
}
.card-link:hover {
  gap: 10px;
  color: #ffffff;
}

/* Pagination */
.blog-pagination {
  margin-top: 55px;
  display: flex;
  justify-content: center;
}
.blog-pagination ul.page-numbers {
  display: flex;
  list-style: none;
  gap: 10px;
  padding: 0;
  margin: 0;
}
.blog-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  background: rgba(24, 10, 48, 0.8);
  border: 1px solid rgba(124, 15, 209, 0.3);
  color: #cbbbe3;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.25s;
}
.blog-pagination .page-numbers:hover,
.blog-pagination .page-numbers.current {
  background: #7c0fd1;
  color: #fff;
  border-color: #00f5ff;
  box-shadow: 0 0 15px rgba(0, 245, 255, 0.3);
}

/* Bottom CTA Banner */
.blog-cta-banner {
  background: linear-gradient(135deg, #1b0735 0%, #2f0b5a 100%);
  border-top: 1px solid rgba(198, 75, 255, 0.25);
  padding: 60px 0;
}
.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  background: rgba(14, 5, 28, 0.7);
  border: 1px solid rgba(124, 15, 209, 0.3);
  border-radius: 24px;
  padding: 40px 48px;
}
.cta-banner-text h2 {
  font-size: clamp(22px, 2.5vw, 32px);
  color: #fff;
  margin: 10px 0 12px;
}
.cta-banner-text p {
  color: #bfaed9;
  font-size: 16px;
  max-width: 620px;
  margin: 0;
}
.cta-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #00f5ff;
}
.cta-banner-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}
.btn-hotline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 9999px;
  border: 1px solid rgba(198, 75, 255, 0.4);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  font-size: 15px;
  transition: all 0.25s;
}
.btn-hotline:hover {
  background: rgba(124, 15, 209, 0.3);
  border-color: #00f5ff;
}

/* ═══ SINGLE POST PAGE STYLING ═══ */
.single-post-wrapper {
  background: #0d041a;
  color: #e4d7f5;
  padding-bottom: 90px;
}
.single-post-header {
  padding: 45px 0 35px;
  border-bottom: 1px solid rgba(124, 15, 209, 0.2);
  background: radial-gradient(circle at 50% 0%, rgba(124, 15, 209, 0.25) 0%, transparent 70%);
}
.post-cat-pill-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.post-cat-pill {
  padding: 5px 14px;
  border-radius: 9999px;
  background: #7c0fd1;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  letter-spacing: 0.05em;
}
.post-featured-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #00f5ff;
}
.single-post-title {
  font-size: clamp(28px, 3.8vw, 44px);
  font-weight: 900;
  line-height: 1.3;
  color: #ffffff;
  margin-bottom: 24px;
  letter-spacing: -0.015em;
}
.single-post-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  background: rgba(24, 10, 48, 0.7);
  border: 1px solid rgba(124, 15, 209, 0.25);
  border-radius: 14px;
  padding: 14px 20px;
}
.meta-author-group {
  display: flex;
  align-items: center;
  gap: 12px;
}
.meta-author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c0fd1, #00f5ff);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  font-size: 20px;
  box-shadow: 0 0 12px rgba(124, 15, 209, 0.4);
}
.meta-author-info {
  display: flex;
  flex-direction: column;
}
.author-name {
  font-weight: 800;
  color: #ffffff;
  font-size: 14.5px;
}
.author-role {
  font-size: 12.5px;
  color: #9d8db8;
}
.meta-time-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13.5px;
  color: #a797be;
}

/* Key Takeaways Box */
.post-summary-box {
  background: linear-gradient(135deg, rgba(35, 12, 65, 0.8), rgba(20, 7, 40, 0.8));
  border: 1px solid rgba(0, 245, 255, 0.35);
  border-left: 5px solid #00f5ff;
  border-radius: 14px;
  padding: 22px 26px;
  margin: 35px 0 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.summary-head {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #00f5ff;
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 12px;
}
.summary-list {
  margin: 0;
  padding-left: 20px;
  color: #d8caf0;
  font-size: 15.5px;
  line-height: 1.7;
}
.summary-list li {
  margin-bottom: 6px;
}

/* Featured Figure */
.single-featured-figure {
  margin: 30px 0;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(124, 15, 209, 0.3);
}
.single-featured-img {
  width: 100%;
  height: auto;
  display: block;
}
.single-featured-caption {
  padding: 10px 16px;
  font-size: 13px;
  color: #8c7aa8;
  background: rgba(18, 7, 36, 0.9);
  text-align: center;
  font-style: italic;
}

/* Table of Contents */
.post-toc {
  background: rgba(22, 9, 44, 0.9);
  border: 1px solid rgba(198, 75, 255, 0.35);
  border-radius: 16px;
  padding: 22px 26px;
  margin: 35px 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.post-toc-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  border-bottom: 1px solid rgba(124, 15, 209, 0.2);
  padding-bottom: 12px;
  margin-bottom: 14px;
}
.toc-count {
  font-size: 12px;
  font-family: var(--font-mono);
  background: rgba(124, 15, 209, 0.4);
  color: #00f5ff;
  padding: 2px 8px;
  border-radius: 4px;
}
.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.toc-item {
  margin-bottom: 8px;
  line-height: 1.5;
}
.toc-item a {
  color: #c7a7f7;
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s;
  display: inline-block;
}
.toc-item a:hover {
  color: #00f5ff;
  text-decoration: underline;
}
.toc-lvl-2 {
  font-weight: 600;
}
.toc-lvl-3 {
  padding-left: 20px;
  font-size: 14px;
  opacity: 0.85;
}

/* Entry Content (Post Typography) */
.entry-content {
  font-size: 17.5px;
  line-height: 1.85;
  color: #ded1f3;
}
.entry-content h2 {
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 800;
  color: #ffffff;
  margin: 45px 0 18px;
  line-height: 1.35;
  padding-bottom: 10px;
  border-bottom: 2px solid rgba(124, 15, 209, 0.4);
  position: relative;
}
.entry-content h2::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 60px;
  height: 2px;
  background: #00f5ff;
}
.entry-content h3 {
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 800;
  color: #c7a7f7;
  margin: 32px 0 14px;
  line-height: 1.4;
}
.entry-content p {
  margin-bottom: 22px;
}
.entry-content strong {
  color: #ffffff;
  font-weight: 700;
}
.entry-content ul, .entry-content ol {
  padding-left: 24px;
  margin-bottom: 24px;
}
.entry-content li {
  margin-bottom: 10px;
}
.entry-content blockquote {
  margin: 30px 0;
  padding: 20px 26px;
  background: rgba(30, 11, 58, 0.6);
  border-left: 4px solid #7c0fd1;
  border-radius: 0 12px 12px 0;
  font-style: italic;
  color: #e4d7f5;
  font-size: 17.5px;
}
.entry-content code {
  background: rgba(38, 15, 74, 0.8);
  color: #00f5ff;
  padding: 3px 8px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.entry-content pre {
  background: #090212;
  border: 1px solid rgba(124, 15, 209, 0.3);
  border-radius: 12px;
  padding: 18px 22px;
  overflow-x: auto;
  margin: 25px 0;
}
.entry-content pre code {
  background: transparent;
  padding: 0;
  color: #e0d0f5;
}

/* Social Share Strip */
.post-share-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: rgba(22, 9, 44, 0.8);
  border: 1px solid rgba(124, 15, 209, 0.25);
  border-radius: 14px;
  padding: 18px 24px;
  margin: 45px 0;
}
.share-label {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
}
.share-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.share-btn {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.share-fb {
  background: #1877f2;
  color: #fff;
}
.share-zalo {
  background: #0068ff;
  color: #fff;
}
.share-li {
  background: #0a66c2;
  color: #fff;
}
.share-copy {
  background: rgba(124, 15, 209, 0.4);
  color: #00f5ff;
  border: 1px solid rgba(0, 245, 255, 0.3);
}
.share-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.15);
}

/* In-Article Lead Capture Box */
.post-lead-box {
  background: radial-gradient(circle at 100% 0%, rgba(124, 15, 209, 0.4), rgba(18, 6, 36, 0.95) 70%);
  border: 1px solid rgba(198, 75, 255, 0.4);
  border-radius: 20px;
  padding: 36px 38px;
  margin: 45px 0;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}
.lead-box-decor {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: #00f5ff;
  letter-spacing: 0.12em;
  background: rgba(0, 245, 255, 0.12);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 9999px;
  margin-bottom: 12px;
}
.lead-box-title {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}
.lead-box-desc {
  font-size: 15.5px;
  line-height: 1.65;
  color: #bfb0d7;
  margin-bottom: 24px;
}
.lead-box-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-hotline-inline {
  color: #ffaa40;
  font-weight: 800;
  font-size: 16px;
  text-decoration: none;
  transition: color 0.2s;
}
.btn-hotline-inline:hover {
  color: #fff;
}

/* Author Bio Box */
.author-bio-box {
  display: flex;
  gap: 22px;
  background: rgba(22, 9, 44, 0.85);
  border: 1px solid rgba(124, 15, 209, 0.3);
  border-radius: 18px;
  padding: 30px;
  margin: 45px 0;
}
.author-bio-avatar {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c0fd1, #00f5ff);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 900;
  font-size: 30px;
  flex-shrink: 0;
  box-shadow: 0 0 18px rgba(124, 15, 209, 0.5);
}
.author-bio-details {
  flex-grow: 1;
}
.author-bio-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: #00f5ff;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.author-bio-name {
  font-size: 19px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}
.author-bio-text {
  font-size: 14.5px;
  line-height: 1.65;
  color: #b5a4ce;
  margin-bottom: 14px;
}
.author-bio-contact {
  display: flex;
  gap: 20px;
  font-size: 13.5px;
  color: #8c7aa8;
}
.author-bio-contact a {
  color: #00f5ff;
  text-decoration: none;
}
.author-bio-contact strong {
  color: #ffaa40;
}

/* Related Posts Section */
.related-posts-section {
  margin-top: 55px;
  border-top: 1px solid rgba(124, 15, 209, 0.2);
  padding-top: 40px;
}
.related-section-title {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 24px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  background: rgba(22, 9, 44, 0.7);
  border: 1px solid rgba(124, 15, 209, 0.25);
  border-radius: 14px;
  padding: 18px;
  display: flex;
  gap: 14px;
  align-items: center;
  transition: all 0.25s;
}
.related-card:hover {
  border-color: #00f5ff;
  transform: translateY(-3px);
}
.related-thumb-mini {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background: linear-gradient(135deg, #3b0e68, #7c0fd1);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 22px;
  flex-shrink: 0;
}
.related-date {
  font-size: 12px;
  color: #8c7aa8;
  display: block;
  margin-bottom: 4px;
}
.related-title {
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0;
}
.related-title a {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.2s;
}
.related-title a:hover {
  color: #00f5ff;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .blog-articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .blog-featured-card {
    grid-template-columns: 1fr;
  }
  .featured-img-holder {
    min-height: 240px;
  }
  .cta-banner-inner {
    flex-direction: column;
    text-align: center;
    padding: 30px;
  }
  .cta-banner-text p {
    margin: 0 auto;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .blog-articles-grid {
    grid-template-columns: 1fr;
  }
  .single-post-meta {
    flex-direction: column;
    align-items: flex-start;
  }
  .author-bio-box {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .author-bio-contact {
    justify-content: center;
    flex-wrap: wrap;
  }
  .post-share-strip {
    flex-direction: column;
    align-items: flex-start;
  }
}

.blog-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}
.blog-card:hover .blog-card-img {
  transform: scale(1.05);
}
.blog-img-holder {
  overflow: hidden;
}