/* ==========================================================================
   1. ĐỊNH NGHĨA BIẾN TOÀN CỤC & RESET BASE
   ========================================================================== */
:root {
  --blue-950: #04113f;
  --blue-900: #071b5f;
  --blue-800: #09309a;
  --blue-700: #0a45d8;
  --blue-600: #0967f2;
  --blue-500: #1686ff;
  --blue-100: #eaf4ff;
  --blue-050: #f5fbff;
  --yellow: #f2c230;
  --ink: #071739;
  --muted: #52627a;
  --line: rgba(11, 50, 120, 0.12);
  --white: #ffffff;
  --shadow: 0 24px 80px rgba(6, 33, 104, 0.16);
  --soft-shadow: 0 16px 50px rgba(6, 33, 104, 0.10);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 18px;
  --max: 1440px;
}

.super-container, .sk-container {
  width: min(var(--max), calc(100% - 84px));
  margin-inline: auto;
  position: relative;
}

/* Hiệu ứng vòng tròn mờ background Supertots 
.supertots-bg::before, .supertots-bg::after {
  content: ""; position: absolute; pointer-events: none; z-index: -1; border-radius: 50%;
}

.supertots-bg::before {
  width: 520px; height: 520px; right: -210px; top: 92px;
  border: 1px solid rgba(25, 117, 255, 0.16);
  box-shadow: 0 0 0 10px rgba(25, 117, 255, 0.04), 0 0 0 20px rgba(25, 117, 255, 0.035), 0 0 0 30px rgba(25, 117, 255, 0.03), 0 0 0 40px rgba(25, 117, 255, 0.025), 0 0 0 50px rgba(25, 117, 255, 0.02), 0 0 0 60px rgba(25, 117, 255, 0.018), 0 0 0 70px rgba(25, 117, 255, 0.014);
}
.supertots-bg::after {
  width: 420px; height: 420px; left: -240px; top: 420px;
  border: 1px solid rgba(25, 117, 255, 0.14);
  box-shadow: 0 0 0 9px rgba(25, 117, 255, 0.04), 0 0 0 18px rgba(25, 117, 255, 0.034), 0 0 0 27px rgba(25, 117, 255, 0.028), 0 0 0 36px rgba(25, 117, 255, 0.022), 0 0 0 45px rgba(25, 117, 255, 0.016);
}
*/
/* Watermark chữ mờ cố định toàn trang */
.hero-bg-word { 
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  font-size: clamp(100px, 16vw, 260px); line-height: 0.8; font-weight: 950;
  letter-spacing: -0.05em; color: rgba(7, 56, 165, 0.035); z-index: -2;
  pointer-events: none; user-select: none; white-space: nowrap; text-transform: uppercase;
}

/* ==========================================================================
   2. BUTTONS & TYPOGRAPHY COMPONENTS
   ========================================================================== */
.btn-st, .sk-btn { border: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border-radius: 12px; min-height: 52px; padding: 0 28px; font-weight: 850; letter-spacing: 0.01em; transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease; white-space: nowrap; font-size: 16px;}
.btn-st:hover, .sk-btn:hover { transform: translateY(-2px); }
.btn-st-primary, .sk-btn-primary { color: #fff !important; background: linear-gradient(135deg, #0b72ff 0%, #073ec7 100%); box-shadow: 0 14px 34px rgba(8, 84, 220, 0.25); }
.btn-st-secondary, .sk-btn-secondary { color: var(--blue-700) !important; background: rgba(255, 255, 255, 0.72); border: 1px solid rgba(10, 69, 216, 0.16); box-shadow: 0 10px 28px rgba(6, 33, 104, 0.08); }

.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 850; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue-700); background: rgba(255, 255, 255, 0.68); border: 1px solid rgba(10, 69, 216, 0.12); padding: 10px 14px; border-radius: 999px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 999px; background: var(--yellow); box-shadow: 0 0 0 5px rgba(242, 194, 48, 0.14); }

.section-head { text-align: center; max-width: 900px; margin: 0 auto 42px; position: relative; z-index: 1;}
.section-head h2 { margin: 0 !important; font-size: clamp(32px, 3vw, 50px) !important; line-height: 1.12 !important; letter-spacing: -0.055em !important; color: #071b5f !important; font-weight: 950 !important;}
.section-head p { margin: 18px auto 0 !important; color: var(--muted) !important; font-size: 17px !important; line-height: 1.78 !important; font-weight: 550 !important;}
.accent-line { width: 42px; height: 4px; border-radius: 99px; background: var(--yellow); margin: 18px auto 0; }

/* ==========================================================================
   3. HERO LAYOUTS (INDEX & COURSE DETAIL)
   ========================================================================== */
.hero { padding: 40px 0 46px; position: relative; z-index: 2;}
.hero-wrap { position: relative; min-height: 600px; display: flex; align-items: flex-start; padding-top: 40px; padding-bottom: 120px; }
.hero-image-shell { position: absolute; right: 0; top: 20px; width: 75%; height: 540px; border-radius: 44px 44px 12px 12px; overflow: hidden; border: 4px solid rgba(255, 255, 255, 0.92); box-shadow: var(--shadow); background-size: cover; background-position: center; }
.hero-image-shell::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(250, 253, 255, 0.78) 0%, rgba(250, 253, 255, 0.28) 34%, rgba(250, 253, 255, 0.02) 62%); pointer-events: none; }
.hero-card { position: relative; z-index: 2; width: min(600px, 50%); margin-left: 36px; margin-top: 40px; padding: 46px 48px; border-radius: var(--radius-xl); background: rgba(255, 255, 255, 0.85); border: 1px solid rgba(255, 255, 255, 0.9); box-shadow: var(--shadow); backdrop-filter: blur(20px); }
.hero-card h1 { margin: 22px 0 20px !important; font-size: clamp(28px, 3.5vw, 38px) !important; line-height: 1.08 !important; letter-spacing: -0.045em !important; color: #061847 !important; font-weight: 800 !important; }
.hero-card p { margin: 0 !important; color: #263653 !important; font-size: 17px !important; line-height: 1.8 !important; font-weight: 500 !important; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.hero-floating-card { position: absolute; right: 44px; top: 245px; z-index: 3; width: 320px; padding: 26px 24px; border-radius: 28px; background: rgba(255,255,255,0.78); border: 1px solid rgba(255,255,255,0.86); box-shadow: var(--soft-shadow); backdrop-filter: blur(18px); }
.hero-floating-card strong { display: block; font-size: 18px; font-weight: 800; letter-spacing: -0.025em; margin-bottom: 12px; }
.nice-list { display: grid; gap: 12px; }
.nice-list li { display: flex; align-items: center; gap: 10px; color: #42526d; font-size: 14px; font-weight: 650; }
.check { width: 24px; height: 24px; display: inline-grid; place-items: center; border-radius: 50%; background: #e9f3ff; color: var(--blue-700); font-size: 14px; flex: 0 0 auto; font-weight: 900;}

/* ==========================================================================
   4. STATS BARS
   ========================================================================== */
.stats-bar { position: relative; z-index: 4; display: grid; grid-template-columns: repeat(3, 1fr); border-radius: 22px; overflow: hidden; background: linear-gradient(135deg, #087cff 0%, #0a55ed 42%, #073fc8 100%); box-shadow: 0 24px 70px rgba(7, 83, 218, 0.28); color: #fff; border: 1px solid rgba(255, 255, 255, 0.46); }
.sk-stats-bar-standalone { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(5, 1fr); background: linear-gradient(135deg, #0783ff 0%, #075ff4 48%, #0645ce 100%); color: white; min-height: 116px; border-radius: 24px; box-shadow: 0 22px 60px rgba(7,83,218,0.27); border: 1px solid rgba(255,255,255,0.46); overflow: hidden; margin-top: 20px; }
.stat-item { min-height: 116px; padding: 22px 18px; display: flex; align-items: center; justify-content: center; gap: 18px; position: relative; }
.stat-item:not(:last-child)::after { content: ""; position: absolute; right: 0; top: 28px; bottom: 28px; width: 1px; background: rgba(255,255,255,0.25); }
.stat-icon { width: 50px; height: 50px; display: grid; place-items: center; border-radius: 50%; border: 1.5px solid rgba(255,255,255,0.75); background: rgba(255,255,255,0.08); font-size: 23px; flex: 0 0 auto; }
.stat-number { display: block; font-size: 27px; font-weight: 950; letter-spacing: -0.04em; line-height: 1; }
.stat-label { display: block; margin-top: 8px; font-size: 13px; color: rgba(255,255,255,0.9); font-weight: 600; }

/* ==========================================================================
   5. CARDS COMPONENTS (INFO, LEVEL, STEP, LIST)
   ========================================================================== */
.card-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 20px; position: relative; z-index: 1;}
.two-col { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px; position: relative; z-index: 1;}

.info-card, .level-card { overflow: hidden; border-radius: 30px; background: rgba(255,255,255,0.95); border: 1px solid rgba(10, 69, 216, 0.08); box-shadow: var(--soft-shadow); transition: transform 0.3s; }
.info-card:hover, .level-card:hover { transform: translateY(-8px); box-shadow: var(--shadow); }
.info-card { padding: 28px; min-height: 228px; }

.info-icon { width: 52px; height: 52px; border-radius: 18px; display: grid; place-items: center; color: var(--blue-700); background: linear-gradient(180deg, #eef6ff, #ffffff); box-shadow: inset 0 0 0 1px rgba(10,69,216,0.08); font-size: 24px; margin-bottom: 22px; font-weight: 900; }
.info-card h3 { margin: 0 0 12px !important; font-size: 20px !important; font-weight: 800 !important; letter-spacing: -0.025em !important; color: #071b5f !important; }
.info-card p { margin: 0 !important; color: var(--muted) !important; font-size: 15px !important; line-height: 1.72 !important; font-weight: 500 !important; }

.level-image { height: 240px; position: relative; background-size: cover; background-position: center; }
.level-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(6, 24, 71, 0.03), rgba(6, 24, 71, 0.25)); pointer-events: none; }
.image-note { position: absolute; left: 20px; top: 20px; z-index: 2; padding: 8px 16px; border-radius: 999px; color: #fff; background: rgba(6, 24, 71, 0.55); font-size: 12px; font-weight: 850; backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.2); }
.level-body { padding: 32px 28px; }

.step-card { position: relative; padding: 34px 30px 30px; border-radius: 30px; background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(246,251,255,0.9)); border: 1px solid rgba(10,69,216,0.08); box-shadow: var(--soft-shadow); overflow: hidden; transition: transform 0.3s; }
.step-card:hover { transform: translateY(-5px); }
.step-card::before { content: attr(data-step); position: absolute; right: 20px; top: 12px; color: rgba(7, 68, 208, 0.05); font-size: 90px; line-height: 1; font-weight: 950; letter-spacing: -0.08em; }

.list-card { border-radius: var(--radius-lg); background: rgba(255,255,255,0.82); border: 1px solid rgba(10,69,216,0.08); box-shadow: var(--soft-shadow); padding: 34px; }
.list-card h3 { margin: 0 0 22px !important; color: #071b5f !important; font-size: 24px !important; font-weight: 900 !important; letter-spacing: -0.035em !important; }
.check-list-custom li { display: grid; grid-template-columns: 26px 1fr; gap: 12px; color: #3e4f68; line-height: 1.65; font-size: 15px; font-weight: 550; margin-bottom: 12px;}
.check-list-custom li::before { content: "✓"; width: 26px; height: 26px; display: grid; place-items: center; color: var(--blue-700); background: #eaf3ff; border-radius: 50%; font-size: 14px; font-weight: 900; margin-top: 1px; }

/* ==========================================================================
   6. PREMIUM TRUST BAR & TABS PROGRAM
   ========================================================================== */
.premium-trust-section { padding: 0 0 82px; position: relative; z-index: 6; }
.premium-trust-bar { position: relative; overflow: hidden; display: grid; grid-template-columns: 0.85fr 1.6fr; gap: 28px; align-items: center; padding: 30px; border-radius: 30px; color: #fff; background: radial-gradient(circle at 10% 20%, rgba(255,255,255,0.28), transparent 28%), radial-gradient(circle at 90% 20%, rgba(242,194,48,0.22), transparent 24%), linear-gradient(135deg, #087cff 0%, #075ff4 45%, #062f9f 100%); box-shadow: 0 30px 90px rgba(7, 83, 218, 0.34); border: 1px solid rgba(255,255,255,0.5); }
.premium-trust-bar::after { content: "E4P"; position: absolute; right: -18px; bottom: -34px; font-size: 150px; font-weight: 950; letter-spacing: -0.08em; color: rgba(255,255,255,0.08); pointer-events: none; }
.trust-heading { position: relative; z-index: 1; padding: 10px 8px; }
.trust-heading span { display: inline-flex; margin-bottom: 12px; padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,0.16); border: 1px solid rgba(255,255,255,0.22); font-size: 13px; font-weight: 800; }
.trust-heading strong { display: block; font-size: 28px; line-height: 1.18; letter-spacing: -0.045em; font-weight: 900;}
.premium-trust-items { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.premium-trust-item { min-height: 132px; padding: 20px 18px; border-radius: 24px; background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.22); backdrop-filter: blur(16px); box-shadow: inset 0 1px 0 rgba(255,255,255,0.22); }
.trust-icon { width: 44px; height: 44px; display: grid; place-items: center; margin-bottom: 14px; border-radius: 16px; background: rgba(255,255,255,0.92); color: var(--blue-700); font-size: 22px; }
.premium-trust-item strong { display: block; font-size: 25px; line-height: 1; letter-spacing: -0.04em; font-weight: 900;}
.premium-trust-item span { display: block; margin-top: 9px; color: rgba(255,255,255,0.86); font-size: 13px; line-height: 1.45; font-weight: 650; }

/* Tabs điều hướng */
.tabs-section { position: relative; overflow: hidden; padding-top: 108px; background: linear-gradient(rgba(10,69,216,0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(10,69,216,0.055) 1px, transparent 1px), radial-gradient(circle at 14% 12%, rgba(255,255,255,0.94), transparent 28%), radial-gradient(circle at 88% 8%, rgba(175,216,255,0.72), transparent 34%), linear-gradient(135deg, #f8fcff 0%, #edf7ff 42%, #ffffff 72%, #eaf5ff 100%); background-size: 36px 36px, 36px 36px, auto, auto, auto; }
.program-showcase { position: relative; display: grid; grid-template-columns: 260px minmax(0, 1fr) 340px; grid-template-areas: "menu content parent"; gap: 24px; align-items: start; margin-top: 38px; padding: 34px; border-radius: 38px; border: 1px solid rgba(255,255,255,0.9); box-shadow: var(--shadow); background: radial-gradient(circle at 22% 20%, rgba(255,255,255,0.82), transparent 26%), radial-gradient(circle at 78% 14%, rgba(255,255,255,0.5), transparent 28%), linear-gradient(135deg, rgba(255,255,255,0.68), rgba(232,245,255,0.48)); }
.tab-menu { grid-area: menu; position: relative; z-index: 2; width: 100%; border-radius: 24px; overflow: hidden; background: rgba(255,255,255,0.76); border: 1px solid rgba(255,255,255,0.86); box-shadow: var(--soft-shadow); backdrop-filter: blur(20px); scroll-behavior: smooth;}
.tab-button { width: 100%; min-height: 74px; display: flex; align-items: center; gap: 15px; border: 0; border-bottom: 1px solid rgba(7,42,112,0.08); padding: 14px 16px; background: transparent; color: #071b5f; font-weight: 800; text-align: left; transition: background 0.22s ease, color 0.22s ease; font-size: 15px;}
.tab-button span:first-child { width: 44px; height: 44px; border-radius: 50%; flex: 0 0 auto; display: grid; place-items: center; background: #fff; border: 1px solid rgba(7,60,180,0.10); box-shadow: 0 8px 18px rgba(6,33,104,0.08); color: var(--blue-700); font-size: 21px; }
.tab-button .arrow { margin-left: auto; opacity: 0; transform: translateX(-5px); transition: opacity 0.2s ease, transform 0.2s ease; }
.tab-button.active { background: linear-gradient(135deg, #0c82ff 0%, #0757ec 50%, #063bbd 100%); color: #fff; border-bottom-color: transparent; box-shadow: 0 18px 42px rgba(7,87,236,0.22); }
.tab-button.active span:first-child { color: var(--blue-700); background: #fff; }
.tab-button.active .arrow { opacity: 1; transform: translateX(0); }

.tab-content-card, .parent-card { position: relative; z-index: 2; padding: 36px 38px; border-radius: 28px; background: rgba(255,255,255,0.78); border: 1px solid rgba(255,255,255,0.88); box-shadow: var(--shadow); backdrop-filter: blur(20px); transition: opacity 0.22s ease, transform 0.22s ease; }
.tab-content-card { grid-area: content; }
.parent-card { grid-area: parent; width: 100%; }
.tab-yellow-line { width: 38px; height: 4px; margin: 21px 0 26px; background: var(--yellow); border-radius: 999px; }

.mini-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; margin-top: 28px; }
.mini-pill { min-height: 62px; display: grid; grid-template-columns: 34px 1fr; align-items: center; gap: 12px; border-radius: 20px; background: rgba(255,255,255,0.78); box-shadow: inset 0 0 0 1px rgba(10,69,216,0.08), 0 10px 20px rgba(6,33,104,0.06); padding: 12px 16px; color: var(--blue-700); }
.mini-pill .pill-icon { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; color: var(--blue-700); background: #eaf3ff; font-size: 13px; font-weight: 950; }
.pill-text { display: grid; gap: 4px; min-width: 0; }
.pill-text strong { color: var(--blue-700); font-size: 14px; line-height: 1.22; font-weight: 900; }
.pill-text small { color: #52627a; font-size: 12.5px; line-height: 1.42; font-weight: 650; }

.parent-list { display: grid; gap: 20px; margin-top: 26px; }
.parent-item { display: grid; grid-template-columns: 44px 1fr; align-items: center; gap: 15px; color: #202d46; font-size: 14px; line-height: 1.55; font-weight: 650; }
.parent-item-icon { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; color: var(--blue-700); background: #eaf3ff; font-size: 20px; }

/* ==========================================================================
   7. HỆ THỐNG MOCKUP ĐA SẮC ĐỘNG (DYNAMIC TONES)
   ========================================================================== */
.tone-teal { --tone: #14a6b4; --tone-soft: #eafcfd; --tone-mid: rgba(20,166,180,0.18); }
.tone-orange { --tone: #f27918; --tone-soft: #fff4e9; --tone-mid: rgba(242,121,24,0.18); }
.tone-cyan { --tone: #14a6b4; --tone-soft: #eafcfd; --tone-mid: rgba(20,166,180,0.18); }
.tone-red { --tone: #ef4d6d; --tone-soft: #fff0f3; --tone-mid: rgba(239,77,109,0.18); }
.tone-blue { --tone: #0a61e8; --tone-soft: #eaf4ff; --tone-mid: rgba(10,97,232,0.18); }
.tone-purple { --tone: #7b4fe8; --tone-soft: #f2edff; --tone-mid: rgba(123,79,232,0.18); }
.tone-gold { --tone: #f2a600; --tone-soft: #fff7dd; --tone-mid: rgba(242,166,0,0.18); }
.tone-green { --tone: #2f9446; --tone-soft: #edf9ef; --tone-mid: rgba(47,148,70,0.18); }
.tone-pink { --tone: #ef5da8; --tone-soft: #fff1f8; --tone-mid: rgba(239,93,168,0.18); }

/* Khối mục tiêu Goals */
.sk-goals-mockup { position: relative; overflow: hidden; padding: 96px 0; background: radial-gradient(circle at 8% 8%, rgba(255,255,255,0.92), transparent 22%), radial-gradient(circle at 92% 22%, rgba(180,218,255,0.34), transparent 26%), radial-gradient(circle at 4% 84%, rgba(13,110,255,0.08), transparent 20%), linear-gradient(135deg, #f7fbff 0%, #ffffff 42%, #edf7ff 100%); }
.mock-container { width: min(1440px, calc(100% - 56px)); margin: 0 auto; position: relative; z-index: 1; }
.mock-head { text-align: center; max-width: 1020px; margin: 0 auto 38px; }
.mock-head h2 { 
    margin: 0 !important; 
    color: #071b5f !important; 
    font-size: clamp(30px, 5vw, 52px) !important; 
    line-height: 1.06 !important; 
    letter-spacing: -0.055em !important; 
    font-weight: 650 !important; 
    text-wrap: balance; 
    white-space: pre-line; 
}
.mock-pill { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 42px; padding: 0 22px; border-radius: 999px; background: rgba(255,255,255,0.88); border: 1px solid #cfe0ff; color: var(--blue-700); font-weight: 900; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 16px; font-size: 14px;}
.mock-pill::before { content: "☆"; color: var(--yellow); font-size: 18px; }
.mock-accent { width: 74px; height: 5px; border-radius: 999px; background: var(--yellow); margin: 18px auto 18px; }

.mock-deco { position: absolute; z-index: 0; pointer-events: none; user-select: none; color: rgba(31,107,255,0.72); filter: drop-shadow(0 14px 28px rgba(29,78,163,0.10)); }
.mock-deco.plane { right: 260px; top: 215px; font-size: 44px; transform: rotate(14deg); }
.mock-deco.stars { left: 360px; top: 245px; font-size: 34px; color: var(--yellow); }
.mock-deco.abc { right: 250px; top: 115px; font-size: 48px; color: rgba(31,107,255,0.18); font-weight: 950; }
.mock-deco.bag { left: 44px; bottom: 140px; font-size: 46px; color: rgba(31,107,255,0.20); }
.mock-deco.pencil { right: 50px; bottom: 150px; font-size: 46px; color: rgba(31,107,255,0.20); }

.goals-visual { position: relative; min-height: 570px; margin-top: 26px; }
.goals-dashed-path { position: absolute; left: 235px; right: 235px; top: 192px; height: 250px; border: 2px dashed rgba(78,148,255,0.55); border-top: 0; border-radius: 0 0 300px 300px; pointer-events: none; z-index: 0; }
.goals-center-image { position: absolute; left: 50%; top: 78px; transform: translateX(-50%); width: min(520px, 40vw); height: 300px; border-radius: 36px; background: linear-gradient(180deg, #f9fcff, #eef6ff); border: 2px dashed rgba(98,156,255,0.24); display: grid; place-items: center; overflow: hidden; z-index: 1; box-shadow: 0 18px 44px rgba(41,84,173,0.08);}
.goals-center-image img, .flow-center-image img { width: 100%; height: 100%; object-fit: cover; }

.goal-feature-card { position: absolute; z-index: 2; width: 380px; min-height: 260px; padding: 30px; border-radius: 34px; background: rgba(255,255,255,0.94); border: 2px solid var(--tone); box-shadow: 0 20px 58px rgba(34,77,159,0.12); transition: transform .24s ease, box-shadow .24s ease; }
.goal-feature-card:hover { transform: translateY(-6px); box-shadow: 0 26px 72px rgba(34,77,159,0.16); }
.goal-feature-card.goal-1 { left: 0; top: 120px; }
.goal-feature-card.goal-2 { left: 50%; bottom: 0; transform: translateX(-50%); width: 450px; min-height: 225px; }
.goal-feature-card.goal-2:hover { transform: translateX(-50%) translateY(-6px); }
.goal-feature-card.goal-3 { right: 0; top: 120px; }

.goal-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 24px; }
.goal-number-wrap { display: flex; align-items: center; gap: 12px; }
.goal-number { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--tone); font-size: 25px; font-weight: 950; box-shadow: 0 12px 26px var(--tone-mid); }
.goal-label { min-height: 34px; display: inline-flex; align-items: center; padding: 0 14px; border-radius: 999px; background: var(--tone); color: #fff; font-size: 13px; font-weight: 900; }
.goal-icon-box { width: 86px; height: 86px; border-radius: 26px; display: grid; place-items: center; color: var(--tone); background: linear-gradient(135deg, var(--tone-soft), #fff); box-shadow: inset 0 0 0 1px var(--tone-mid); font-size: 38px; }
.goal-feature-card h3 { margin: 0 0 16px !important; color: #071b5f !important; font-size: 26px !important; line-height: 1.18 !important; letter-spacing: -0.035em !important; font-weight: 950 !important; }
.goal-feature-card .mini-line { width: 44px; height: 4px; border-radius: 999px; background: var(--tone); margin-bottom: 18px; }
.goal-feature-card p { margin: 0 !important; color: #53647f !important; font-size: 15.5px !important; line-height: 1.68 !important; font-weight: 560 !important; }

.mock-bottom-strip { width: min(820px, 92%); margin: 34px auto 0; display: grid; grid-template-columns: repeat(4, 1fr); border-radius: 24px; background: rgba(255,255,255,0.90); border: 1px solid rgba(199,218,255,0.66); box-shadow: 0 16px 46px rgba(33,79,166,0.10); padding: 18px 22px; position: relative; z-index: 2; }
.mock-bottom-item { display: grid; grid-template-columns: 48px 1fr; gap: 12px; align-items: center; padding: 0 16px; border-right: 1px solid rgba(190,210,245,0.72); }
.mock-bottom-item:last-child { border-right: 0; }
.mock-bottom-icon { width: 48px; height: 48px; border-radius: 16px; display: grid; place-items: center; color: var(--tone, #1f6bff); background: var(--tone-soft, #eef5ff); font-size: 24px; }
.mock-bottom-item strong { display: block; color: #071b5f; font-size: 14.5px; font-weight: 950; margin-bottom: 4px;}
.mock-bottom-item span { display: block; color: #53647f; font-size: 12.5px; line-height: 1.32; font-weight: 560; }

/* Sơ đồ tiến trình Class Flow */
.sk-classflow-mockup { position: relative; overflow: hidden; padding: 96px 0; background: radial-gradient(circle at 0% 0%, rgba(208,230,255,0.48), transparent 26%), radial-gradient(circle at 100% 0%, rgba(220,238,255,0.56), transparent 28%), radial-gradient(circle at 100% 100%, rgba(194,224,255,0.30), transparent 26%), linear-gradient(180deg, #f9fcff 0%, #f3f9ff 100%); }
.flow-visual { position: relative; min-height: 660px; margin-top: 34px; }
.flow-dashed-ring { position: absolute; left: 120px; right: 120px; top: 160px; height: 360px; border: 3px dashed rgba(0,83,210,0.70); border-radius: 50%; pointer-events: none; z-index: 0; }
.flow-center-image { position: absolute; left: 50%; top: 90px; transform: translateX(-50%); width: min(560px, 42vw); height: 350px; border-radius: 38px; background: linear-gradient(180deg, #f9fcff, #eef6ff); border: 2px dashed rgba(98,156,255,0.24); display: grid; place-items: center; overflow: hidden; z-index: 1; box-shadow: 0 18px 44px rgba(41,84,173,0.08);}

.flow-step-card { position: absolute; z-index: 2; width: 330px; min-height: 170px; display: grid; grid-template-columns: 92px 1fr; gap: 18px; align-items: center; padding: 24px; border-radius: 30px; background: rgba(255,255,255,0.94); border: 1.8px solid var(--tone); box-shadow: 0 18px 52px rgba(34,77,159,0.11); transition: transform .24s ease, box-shadow .24s ease; }
.flow-step-card:hover { transform: translateY(-6px); box-shadow: 0 26px 72px rgba(34,77,159,0.16); }
.flow-step-card.step-1 { left: 22px; top: 40px; }
.flow-step-card.step-2 { left: 80px; bottom: 185px; }
.flow-step-card.step-3 { left: 50%; bottom: 90px; transform: translateX(-50%); }
.flow-step-card.step-3:hover { transform: translateX(-50%) translateY(-6px); }
.flow-step-card.step-4 { right: 80px; bottom: 175px; }
.flow-step-card.step-5 { right: 22px; top: 56px; }
.flow-step-no { position: absolute; left: 18px; top: -22px; width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--tone); font-size: 25px; font-weight: 950; box-shadow: 0 12px 28px var(--tone-mid); }
.flow-step-icon { width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; background: var(--tone-soft); color: var(--tone); box-shadow: inset 0 0 0 10px rgba(255,255,255,0.62); font-size: 38px; }
.flow-step-card h3 { margin: 0 0 8px !important; color: #071b5f !important; font-size: 18px !important; line-height: 1.28 !important; letter-spacing: -0.02em !important; font-weight: 950 !important; }
.flow-step-card p { margin: 0 !important; color: #53647f !important; font-size: 14.5px !important; line-height: 1.58 !important; font-weight: 560 !important; }

/* ==========================================================================
   8. ROADMAP, SKILLS & OUTCOMES GRIDS
   ========================================================================== */
/* Vòng quay lộ trình Roadmap */
.sk-real-roadmap { position: relative; overflow: hidden; padding: 96px 0; background: radial-gradient(circle at 0% 0%, rgba(191,216,255,0.42), transparent 24%), radial-gradient(circle at 100% 0%, rgba(210,228,255,0.48), transparent 26%), radial-gradient(circle at 100% 100%, rgba(194,224,255,0.30), transparent 26%), linear-gradient(180deg, #f9fcff 0%, #f3f9ff 100%); }
.real-carousel-shell { position: relative; margin-top: 36px; }
.real-carousel-nav { position: absolute; top: 46%; z-index: 7; width: 58px; height: 58px; border-radius: 50%; border: 1px solid #dbe8ff; background: rgba(255,255,255,0.96); box-shadow: 0 18px 46px rgba(34,77,159,0.13); display: grid; place-items: center; color: #071b5f; font-size: 34px; transition: transform .2s ease; }
.real-carousel-nav:hover { transform: translateY(-2px); }
.real-carousel-nav.prev { left: -8px; } .real-carousel-nav.next { right: -8px; }

.real-roadmap-track { display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 22px 20px 34px; margin: 0 auto; max-width: max-content; scrollbar-width: none; scroll-behavior: smooth; }
.real-roadmap-track::-webkit-scrollbar { display: none; }
@media (min-width: 1024px) { .real-roadmap-track.few-items { justify-content: center; width: 100%; max-width: 100%;} }

.real-level-card { flex: 0 0 min(330px, 85vw); min-height: 540px; scroll-snap-align: center; position: relative; padding: 18px 16px; border-radius: 30px; background: rgba(255,255,255,0.90); border: 1px solid rgba(180,204,245,0.62); box-shadow: 0 12px 32px rgba(27,78,167,0.07); backdrop-filter: blur(8px); transition: all .28s ease; }
.real-level-card:hover { transform: translateY(-7px); box-shadow: 0 20px 50px rgba(27,78,167,0.12); }
.real-level-card.is-active { flex-basis: min(350px, 85vw); min-height: 630px; transform: translateY(-12px); border: 2px solid #a7c7ff; box-shadow: 0 24px 66px rgba(31,107,255,0.18); background: rgba(255,255,255,0.96); }
.real-level-tag { position: relative; z-index: 2; min-width: 78px; height: 38px; display: inline-flex; align-items: center; justify-content: center; padding: 0 14px; border-radius: 14px; color: #fff; background: var(--tone); box-shadow: 0 10px 22px rgba(24,63,141,0.14); font-size: 14px; font-weight: 900; margin-bottom: 12px; }

.real-level-image { width: 100%; height: 142px; border-radius: 20px; border: 2px dashed rgba(80,133,222,0.20); background: linear-gradient(180deg, #f9fcff, var(--tone-soft)); display: grid; place-items: center; font-size: 44px; margin: 0 0 16px; overflow: hidden; }
.real-level-card.is-active .real-level-image { height: 190px; }
.real-level-image img { width: 100%; height: 100%; object-fit: cover; display: block; }

.real-level-card h3 { margin: 0 0 4px !important; color: var(--tone) !important; font-size: 24px !important; line-height: 1.18 !important; letter-spacing: -0.035em !important; font-weight: 950 !important; }
.real-level-age { display: inline-flex; align-items: center; justify-content: center; min-height: 34px; padding: 0 14px; border-radius: 999px; background: var(--tone-soft); border: 1px solid var(--tone-mid); color: var(--tone); font-weight: 900; font-size: 14px; margin: 6px 0 12px; }
.real-level-focus { min-height: 46px; margin-bottom: 14px; color: #25385f; font-size: 14.2px; line-height: 1.48; font-weight: 800; }
.real-level-points { display: grid; gap: 10px; margin: 0 0 18px !important; padding: 0 !important; list-style: none; }
.real-level-points li { display: grid; grid-template-columns: 20px 1fr; gap: 8px; color: #42526d; font-size: 13.3px; line-height: 1.5; font-weight: 560; }
.real-level-points li::before { content: "✓"; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; color: var(--tone); background: var(--tone-soft); font-size: 11px; font-weight: 950; margin-top: 1px; }

.real-carousel-dots { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: -12px; margin-bottom: 22px; }
.real-dot { width: 9px; height: 9px; border-radius: 999px; border: 0; background: #d7e4f9; transition: width .22s ease, background .22s ease; padding: 0; cursor: pointer;}
.real-dot.is-active { width: 26px; background: #1f6bff; }

.real-roadmap-strip { position: relative; z-index: 1; border-radius: 34px; background: rgba(255,255,255,0.88); border: 1px solid rgba(199,218,255,0.62); box-shadow: 0 16px 46px rgba(33,79,166,0.10); backdrop-filter: blur(12px); margin: 8px auto 22px; padding: 24px 26px 20px; }
.real-roadmap-strip::before { content: ""; position: absolute; left: 84px; right: 84px; top: 50px; border-top: 2px dashed rgba(78,148,255,0.54); z-index: 0; }
.real-roadmap-strip-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(var(--cols, 6), minmax(0, 1fr)); gap: 14px; }
.real-roadmap-step { text-align: center; }
.real-roadmap-step .num { width: 46px; height: 46px; margin: 0 auto 10px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--tone); font-size: 20px; font-weight: 950; box-shadow: 0 8px 18px rgba(41,84,173,0.13); }
.real-roadmap-step .icon { font-size: 32px; margin-bottom: 8px; height: 48px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.real-roadmap-step h4 { margin: 0 0 6px !important; color: var(--tone) !important; font-size: 15px !important; line-height: 1.18 !important; font-weight: 950 !important; }

/* 6 Khung kỹ năng thế kỷ Skills */
.sk-real-skills { position: relative; overflow: hidden; padding: 96px 0; background: radial-gradient(circle at 0% 0%, rgba(191,216,255,0.42), transparent 24%), radial-gradient(circle at 100% 0%, rgba(210,228,255,0.48), transparent 26%), radial-gradient(circle at 100% 100%, rgba(194,224,255,0.30), transparent 26%), linear-gradient(180deg, #f9fcff 0%, #f3f9ff 100%); }
.skills-real-layout { position: relative; margin-top: 42px; padding-bottom: 16px; }
.skills-real-curve { position: absolute; left: 56px; right: 56px; top: 112px; bottom: 132px; border: 2px dashed rgba(78,148,255,0.70); border-radius: 330px; z-index: 0; }
.skills-real-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 1.18fr 1fr; gap: 28px 26px; align-items: center; }
.skills-real-col { display: grid; gap: 26px; }
.skill-real-card { position: relative; display: grid; grid-template-columns: 92px 1fr; gap: 18px; align-items: center; min-height: 150px; padding: 24px 22px; border-radius: 28px; background: rgba(255,255,255,0.93); border: 1px solid rgba(199,218,255,0.66); box-shadow: 0 16px 42px rgba(33,79,166,0.10); transition: transform .24s ease, box-shadow .24s ease; }
.skill-real-card:hover { transform: translateY(-5px); box-shadow: 0 20px 54px rgba(33,79,166,0.15); }
.skill-real-no { position: absolute; top: -14px; left: -9px; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, #2680ff, #0d59dd); font-size: 23px; font-weight: 950; box-shadow: 0 10px 20px rgba(24,90,211,0.18); }
.skill-real-icon { width: 82px; height: 82px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--tone-soft); color: var(--tone); box-shadow: inset 0 0 0 10px rgba(255,255,255,0.58); font-size: 38px; overflow: hidden; padding: 12px;}
.skill-real-card h3 { margin: 0 0 8px !important; color: #071b5f !important; font-size: 18px !important; line-height: 1.28 !important; letter-spacing: -0.02em !important; font-weight: 950 !important; }
.skill-real-card p { margin: 0 !important; color: #53647f !important; font-size: 14.4px !important; line-height: 1.58 !important; font-weight: 560 !important; }
.skills-real-center { position: relative; text-align: center; }
.skills-real-main-image { width: 100%; max-width: 540px; height: 360px; margin: 0 auto; border-radius: 34px; border: 2px dashed rgba(98,156,255,0.24); background: linear-gradient(180deg, #f9fcff, #eef6ff); display: grid; place-items: center; overflow: hidden; box-shadow: 0 18px 44px rgba(41,84,173,0.08); }
.skills-real-main-image img { width: 100%; height: 100%; object-fit: cover; }

/* Khối lưới đo lường hiệu quả bài học Outcomes */
.outcomes-mockup-section { position: relative; overflow: hidden; background: radial-gradient(circle at 5% 18%, rgba(255,255,255,0.92), transparent 25%), radial-gradient(circle at 90% 16%, rgba(195,225,255,0.42), transparent 28%), radial-gradient(circle at 92% 80%, rgba(10,103,242,0.08), transparent 22%), linear-gradient(135deg, #f8fcff 0%, #ffffff 48%, #edf7ff 100%); padding: 96px 0;}
.outcome-metric-strip { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(5, 1fr); align-items: center; max-width: 1120px; margin: 0 auto 36px; padding: 16px 24px; border-radius: 999px; background: rgba(255,255,255,0.88); border: 1px solid rgba(10,69,216,0.08); box-shadow: 0 18px 54px rgba(6,33,104,0.09); }
.outcome-metric { display: grid; grid-template-columns: 58px 1fr; align-items: center; gap: 12px; padding: 0 18px; border-right: 1px solid rgba(10,69,216,0.12); }
.outcome-metric:last-child { border-right: 0; }
.metric-icon { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 50%; background: var(--tone-soft); color: var(--tone); font-size: 26px; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.8); }
.outcome-metric strong { display: block; color: var(--blue-700); font-size: 30px; line-height: 1; letter-spacing: -0.04em; font-weight: 950; margin-bottom: 4px;}
.outcome-metric span { display: block; color: #344762; font-size: 13px; font-weight: 750; }

.outcome-core-layout { position: relative; z-index: 1; display: grid; grid-template-columns: 320px minmax(360px, 1fr) 320px; grid-template-areas: "left main right" "left2 main right"; gap: 24px; align-items: center; margin-bottom: 28px; }
.main-image-placeholder { grid-area: main; min-height: 310px; border-radius: 34px; display: grid; place-items: center; overflow: hidden; border: 2px dashed rgba(10,103,242,0.22); box-shadow: inset 0 0 0 8px rgba(255,255,255,0.38); }
.main-image-placeholder img { width: 100%; height: 100%; object-fit: cover; }
.outcome-feature-card { position: relative; display: grid; grid-template-columns: 86px 1fr; gap: 18px; align-items: center; min-height: 150px; padding: 26px; border-radius: 28px; background: rgba(255,255,255,0.90); border: 1.5px solid rgba(167,199,255,0.5); box-shadow: 0 18px 54px rgba(6,33,104,0.09); }
.outcome-feature-card.card-1 { grid-area: left; }
.outcome-feature-card.card-2 { grid-area: right; }
.outcome-feature-card.card-3 { grid-area: left2; }
.feature-no { position: absolute; left: 20px; top: -18px; min-width: 64px; height: 38px; display: grid; place-items: center; border-radius: 14px 14px 20px 20px; color: #fff; background: var(--tone); font-size: 18px; font-weight: 950; }
.feature-icon { width: 82px; height: 82px; display: grid; place-items: center; border-radius: 50%; background: var(--tone-soft); color: var(--tone); font-size: 36px; box-shadow: inset 0 0 0 8px rgba(255,255,255,0.65), 0 12px 28px rgba(6,33,104,0.08); }
.outcome-feature-card h3 { margin: 0 0 8px !important; color: var(--tone) !important; font-size: 26px !important; line-height: 1.2 !important; letter-spacing: -0.035em !important; font-weight: 950 !important;}
.outcome-feature-card p { margin: 0 !important; color: #344762 !important; font-size: 15px !important; line-height: 1.58 !important; font-weight: 600 !important; }

.outcome-small-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; margin-bottom: 24px; }
.small-outcome-card { min-height: 180px; padding: 22px 18px; border-radius: 24px; background: rgba(255,255,255,0.88); border: 1px solid rgba(10,69,216,0.08); box-shadow: 0 16px 44px rgba(6,33,104,0.08); text-align: center;}
.small-outcome-card .small-icon { width: 54px; height: 54px; display: grid; place-items: center; margin: 0 auto 14px; border-radius: 18px; background: var(--tone-soft); color: var(--tone); font-size: 26px; }
.small-outcome-card h4 { margin: 0 0 8px !important; color: var(--tone) !important; font-size: 18px !important; line-height: 1.22 !important; letter-spacing: -0.02em !important; font-weight: 900 !important;}
.small-outcome-card p { margin: 0 !important; color: #42526d !important; font-size: 13.2px !important; line-height: 1.48 !important; font-weight: 600 !important; }

/* ==========================================================================
   9. VIDEO, FAQ, TESTIMONIALS & KHỐI TIN TỨC ILA
   ========================================================================== */
.video-showcase { display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 26px; }
.main-video-card, .mini-video-card, .testimonial-card, .faq-item, .blog-card { background: rgba(255,255,255,0.84); border: 1px solid rgba(10,69,216,0.08); box-shadow: var(--soft-shadow); }
.main-video-card { overflow: hidden; border-radius: 32px; }
.main-video-thumb { position: relative; height: 430px; display: grid; place-items: center; background-size: cover; background-position: center;}
.play-circle { width: 92px; height: 92px; display: grid; place-items: center; border-radius: 50%; color: var(--blue-700); background: rgba(255,255,255,0.9); box-shadow: 0 22px 60px rgba(6,33,104,0.22); font-size: 34px; padding-left: 6px; cursor: pointer;}
.video-badge { position: absolute; left: 28px; bottom: 28px; padding: 10px 16px; border-radius: 999px; color: #fff; background: rgba(7,27,95,0.58); backdrop-filter: blur(12px); font-size: 13px; font-weight: 850; }
.main-video-body { padding: 30px; }
.main-video-body h3 { margin: 0 0 12px !important; color: var(--blue-900) !important; font-size: 28px !important; font-weight: 900 !important;}

.mini-video-list { display: grid; gap: 18px; }
.mini-video-card { display: grid; grid-template-columns: 116px 1fr; gap: 18px; align-items: center; padding: 18px; border-radius: 26px; cursor: pointer;}
.mini-thumb { height: 92px; border-radius: 22px; display: grid; place-items: center; background: linear-gradient(135deg, #eaf4ff, #ffffff); color: var(--blue-700); font-size: 34px; }
.mini-video-card h3 { margin: 0 0 8px !important; color: var(--blue-900) !important; font-size: 20px !important; font-weight: 800 !important;}

.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.testimonial-card { padding: 30px; border-radius: 28px; }
.parent-info { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.parent-avatar { width: 54px; height: 54px; border-radius: 50%; background: linear-gradient(135deg, #eaf4ff, #ffffff); display: grid; place-items: center; color: var(--blue-700); font-weight: 900; font-size: 20px;}
.testimonial-card p { color: var(--muted) !important; line-height: 1.75 !important; margin: 0 !important; }

.faq-list { max-width: 980px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { padding: 0; overflow: hidden; border-radius: 28px; }
.faq-item summary { cursor: pointer; font-weight: 850; color: var(--blue-900); font-size: 18px; padding: 24px 28px; list-style: none; display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; background: #eaf3ff; color: var(--blue-700); font-weight: 900; flex: 0 0 auto; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { color: var(--muted) !important; line-height: 1.75 !important; margin: 0 !important; padding: 0 28px 24px !important; }

.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.blog-card { overflow: hidden; border-radius: 28px; background: rgba(255,255,255,0.84); border: 1px solid rgba(10,69,216,0.08); box-shadow: var(--soft-shadow); cursor: pointer; transition: transform .2s; }
.blog-card:hover { transform: translateY(-4px); }
.blog-image { height: 180px; background: linear-gradient(135deg, #dceeff, #ffffff); display: grid; place-items: center; font-size: 42px; background-size: cover; background-position: center;}
.blog-body { padding: 24px; }
.blog-body h3 { margin: 0 0 10px !important; color: var(--blue-900) !important; font-size: 21px !important; font-weight: 800 !important; }
.blog-body p { margin: 0 !important; color: var(--muted) !important; line-height: 1.6; }
/* ==========================================================================
   11. BỔ SUNG CSS BỐ CỤC CHO COURSE DETAIL
   ========================================================================== */
/* Khung nền trang chi tiết & Vòng tròn trang trí */
.sk-page-wrapper {
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  color: var(--ink);
  position: relative;
  overflow-x: hidden;
  background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
}
.sk-page-wrapper ul { list-style: none; margin: 0; padding: 0; }
/*
.sk-page-wrapper::before, .sk-page-wrapper::after { content: ""; position: absolute; pointer-events: none; z-index: 0; border-radius: 50%; }
.sk-page-wrapper::before { width: 520px; height: 520px; right: -210px; top: 92px; border: 1px solid rgba(25,117,255,0.16); box-shadow: 0 0 0 10px rgba(25,117,255,0.04), 0 0 0 20px rgba(25,117,255,0.035), 0 0 0 30px rgba(25,117,255,0.03), 0 0 0 40px rgba(25,117,255,0.025), 0 0 0 50px rgba(25,117,255,0.02), 0 0 0 60px rgba(25,117,255,0.018), 0 0 0 70px rgba(25,117,255,0.014); }
.sk-page-wrapper::after { width: 420px; height: 420px; left: -240px; top: 420px; border: 1px solid rgba(25,117,255,0.14); box-shadow: 0 0 0 9px rgba(25,117,255,0.04), 0 0 0 18px rgba(25,117,255,0.034), 0 0 0 27px rgba(25,117,255,0.028), 0 0 0 36px rgba(25,117,255,0.022), 0 0 0 45px rgba(25,117,255,0.016); }
*/
/* Khoảng cách các phân khu (Section Padding) - Giúp các khối không bị dính vào nhau */
.sk-section { padding: 88px 0; position: relative; z-index: 2; }
.sk-section:not(.premium-trust-section)::before, .sk-section:not(.premium-trust-section)::after { content: ""; position: absolute; pointer-events: none; border-radius: 50%; z-index: 0; }
.sk-section:not(.premium-trust-section)::before { width: 360px; height: 360px; left: -210px; top: 36px; border: 1px solid rgba(13,110,255,0.08); box-shadow: 0 0 0 12px rgba(13,110,255,0.025), 0 0 0 26px rgba(13,110,255,0.018), 0 0 0 42px rgba(13,110,255,0.012); }

@media (max-width: 940px) {
  .sk-section { padding: 64px 0; }
}
/* ==========================================================================
   10. TOÀN BỘ HỆ THỐNG MEDIA QUERIES (RESPONSIVE MASTER)
   ========================================================================== */
@media (max-width: 1180px) {
  .hero-image-shell { width: 82%; }
  .hero-card { width: 54%; margin-left: 0; }
  .hero-floating-card { display: none; }
  .program-showcase { grid-template-columns: 240px minmax(0, 1fr); grid-template-areas: "menu content" "parent parent"; }
  .sk-stats-bar-standalone { grid-template-columns: repeat(5, minmax(170px,1fr)); overflow-x: auto; scrollbar-width: none; }
  .sk-stats-bar-standalone::-webkit-scrollbar { display: none; }
  .card-grid, .two-col { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .goals-visual, .flow-visual { min-height: auto; display: grid; gap: 20px; }
  .goals-dashed-path, .flow-dashed-ring { display: none; }
  .goals-center-image, .flow-center-image, .goal-feature-card, .flow-step-card { position: relative !important; left: auto !important; right: auto !important; top: auto !important; bottom: auto !important; transform: none !important; width: 100%; }
  .goals-center-image, .flow-center-image { width: min(720px, 100%); margin: 0 auto; height: 330px; order: -1; }
  .goal-feature-card.goal-2 { margin: 0; width: 100%; }
  .mock-bottom-strip { grid-template-columns: repeat(2, 1fr); width: 100%; }
  .mock-bottom-item { border-right: 0; padding-block: 8px;}
  .real-roadmap-track { margin: 0; }
  .real-roadmap-strip::before { display: none; }
  .real-roadmap-strip-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .skills-real-grid { grid-template-columns: 1fr; }
  .skills-real-col { grid-template-columns: 1fr 1fr; }
  .skills-real-curve { display: none; }
  .outcome-core-layout { grid-template-columns: 1fr 1fr; grid-template-areas: "main main" "left right" "left2 left2"; }
  .outcome-feature-card.card-3 { grid-column: auto; width: 100%; margin-top: 0; }
  .outcome-small-grid { grid-template-columns: repeat(3, 1fr); }
  .outcome-metric-strip { grid-template-columns: repeat(3, 1fr); border-radius: 30px; gap: 12px; }
  .outcome-metric { border-right: 0; }
}

@media (max-width: 940px) {
  .hero-wrap { min-height: auto; display: block; padding-top: 20px; padding-bottom: 80px;}
  .hero-image-shell { position: relative; width: 100%; height: 400px; top: auto; right: auto; border-radius: 32px; }
  .hero-card { width: calc(100% - 28px); margin: -80px auto 0; padding: 32px 26px; }
  .stats-bar { grid-template-columns: repeat(3, minmax(160px, 1fr)); overflow-x: auto; margin-top: 30px;}
  .premium-trust-bar, .video-showcase, .testimonial-grid, .blog-grid { grid-template-columns: 1fr; }
  .premium-trust-items { grid-template-columns: repeat(2, 1fr); }
  .program-showcase { grid-template-columns: 1fr; grid-template-areas: "menu" "content" "parent"; padding: 22px; }
  .tab-menu { display: flex; overflow-x: auto; }
  .tab-button { min-width: 210px; border-bottom: 0; border-right: 1px solid rgba(7,42,112,0.08); }
  .real-carousel-nav { display: none; }
  .real-level-card, .real-level-card.is-active { flex: 0 0 86vw; min-height: auto; transform: none; }
  .outcome-core-layout { grid-template-areas: "main" "left" "right" "left2"; grid-template-columns: 1fr;}
  .skills-real-col { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
/* Tối ưu khối Tabs Tổng quan chương trình trên Mobile */
  .program-showcase { 
      padding: 16px; 
      border-radius: 24px; 
      gap: 16px; 
  }
  .tab-menu { 
      border-radius: 16px; 
      scrollbar-width: none; /* Ẩn thanh cuộn xấu xí */
  }
  .tab-menu::-webkit-scrollbar { 
      display: none; 
  }
  .tab-button { 
      min-width: 150px; 
      padding: 10px 12px; 
      min-height: 56px; 
      font-size: 13.5px; 
  }
  .tab-button span:first-child { 
      width: 34px; 
      height: 34px; 
      font-size: 16px; 
  }
  .tab-content-card, .parent-card { 
      padding: 24px 20px; 
      border-radius: 20px; 
  }
  .tab-content-card h2 { 
      font-size: 24px !important; 
  }
  .tab-yellow-line { 
      margin: 14px 0 18px; 
  }
  
  /* Chuyển khối điểm nhấn về 1 cột để chữ không bị bóp méo */
  .mini-list { 
      grid-template-columns: 1fr; 
      gap: 10px; 
      margin-top: 20px; 
  }
  .mini-pill { 
      padding: 12px 16px; 
      min-height: auto; 
  }
  .parent-card h3 { 
      font-size: 20px !important; 
  }
  .parent-list { 
      gap: 14px; 
      margin-top: 20px; 
  }    
  /* 1. Mở rộng lề container: Chỉ chừa lề 12px mỗi bên (thay vì 14px hay 22px như cũ) */
  .super-container, .sk-container { 
      width: min(var(--max), calc(100% - 24px)); 
  }

  /* 2. Thu nhỏ padding bên trong TẤT CẢ các loại thẻ (Cards) để nhường chỗ cho chữ */
  .info-card, .list-card, .testimonial-card, .blog-body, .main-video-body { 
      padding: 20px; 
      min-height: auto; 
  }
  
  .hero-card { 
      padding: 24px 20px; 
      margin-top: -60px; /* Kéo thẻ Hero lên trên ảnh một chút cho gọn */
  }

  .premium-trust-item { 
      padding: 16px; 
  }

  .goal-feature-card, .flow-step-card, .skill-real-card, .outcome-feature-card { 
      padding: 20px 16px; 
  }

  .real-level-card { 
      padding: 20px 16px; 
  }

  /* 3. Tinh chỉnh lại Typography trên mobile cho đỡ bị ngợp */
  .section-head h2 { 
      font-size: 28px !important; 
  }
  .info-card h3, .list-card h3, .goal-feature-card h3, .flow-step-card h3 {
      font-size: 18px !important;
  }
  
  /* Cấu trúc lưới */
  .hero-image-shell { height: 320px; }
  .card-grid, .two-col { grid-template-columns: 1fr; }
  .real-roadmap-strip-grid { grid-template-columns: 1fr; } 
  .stat-item { min-width: 175px; padding: 22px 18px; }
  .mock-bottom-strip, .outcome-metric-strip, .outcome-small-grid { grid-template-columns: 1fr; }
  .mock-bottom-item { padding: 0; }
  .goal-feature-card, .flow-step-card { grid-template-columns: 1fr; text-align: center; }
  .goal-card-top { flex-direction: column; align-items: center; }
  .goal-number-wrap { justify-content: center; width: 100%;}
  .goal-icon-box, .flow-step-icon { margin: 0 auto; }
  .goals-center-image, .flow-center-image { height: 280px; }
  .skill-real-card, .outcome-feature-card { grid-template-columns: 1fr; text-align: center; }
  .skill-real-icon, .feature-icon { margin: 0 auto; }
  .skills-real-main-image { height: 300px; }
  .main-video-thumb { height: 260px; }
  .mini-video-card { grid-template-columns: 1fr; }
}