/* ==========================================================================
   Viet Consulting Education — Design System
   ========================================================================== */

:root{
  /* Brand colors */
  --color-primary: #0B2A4A;
  --color-primary-dark: #071B30;
  --color-primary-light: #16416E;
  --color-accent: #C9A227;
  --color-accent-light: #E4C767;
  --color-accent-dark: #9C7E17;

  /* Neutrals */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F7FA;
  --color-bg-dark: #0B2A4A;
  --color-text: #1A2332;
  --color-text-muted: #5B6B7C;
  --color-text-inverse: #F5F7FA;
  --color-border: #E2E6EB;

  /* Status */
  --color-success: #1F8A57;
  --color-danger: #C0392B;
  --color-warning: #B8860B;

  /* Pillar colors (5 standard areas) */
  --pillar-csr: #1E7A6F;       /* teal - CSR */
  --pillar-quality: #1B4F91;   /* blue - Quality */
  --pillar-security: #8E2A2A;  /* dark red - Security / Anti-terrorism */
  --pillar-environment: #2E7D32;/* green - Environment */
  --pillar-recycle: #C2670F;   /* orange - Recycling */

  --font-heading: 'Montserrat', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(11,42,74,0.08);
  --shadow-md: 0 4px 16px rgba(11,42,74,0.10);
  --shadow-lg: 0 12px 32px rgba(11,42,74,0.14);

  --container-width: 1200px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4,h5{
  font-family: var(--font-heading);
  font-weight:700;
  color: var(--color-primary);
  line-height:1.25;
  margin:0 0 .6em;
}
h1{ font-size: clamp(1.9rem, 3.2vw, 3rem); }
h2{ font-size: clamp(1.5rem, 2.4vw, 2.1rem); }
h3{ font-size: 1.25rem; }
p{ margin:0 0 1em; color: var(--color-text-muted); }
button{ font-family: inherit; cursor:pointer; }
.container{
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
section{ padding: 72px 0; }
.section-alt{ background: var(--color-bg-alt); }
.section-dark{ background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: var(--color-text-inverse); }
.section-dark h2, .section-dark h3{ color:#fff; }
.section-dark p{ color: rgba(245,247,250,0.78); }

.section-head{ max-width: 720px; margin: 0 auto 48px; text-align:center; }
.section-head .eyebrow{ color: var(--color-accent-dark); font-weight:700; letter-spacing:.08em; text-transform:uppercase; font-size:.8rem; }
.section-dark .section-head .eyebrow{ color: var(--color-accent-light); }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 13px 28px; border-radius: var(--radius-sm); font-weight:600;
  border: 2px solid transparent; transition: all .18s ease; font-size:.95rem;
  white-space: nowrap;
}
.btn-primary{ background: var(--color-accent); color: var(--color-primary-dark); border-color: var(--color-accent); }
.btn-primary:hover{ background: var(--color-accent-dark); border-color: var(--color-accent-dark); color:#fff; }
.btn-outline{ background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover{ background: var(--color-primary); color:#fff; }
.btn-outline-light{ background: transparent; color:#fff; border-color: rgba(255,255,255,.55); }
.btn-outline-light:hover{ background: rgba(255,255,255,.12); border-color:#fff; }
.btn-block{ width:100%; }
.btn-sm{ padding: 8px 18px; font-size:.85rem; }
.btn:disabled{ opacity:.5; cursor:not-allowed; }

/* ===================== Header ===================== */
.top-bar{
  background: var(--color-primary-dark); color: rgba(245,247,250,.85);
  font-size:.82rem;
}
.top-bar .container{ display:flex; justify-content:space-between; align-items:center; padding-top:8px; padding-bottom:8px; flex-wrap:wrap; gap:8px; }
.top-bar a{ color: inherit; }
.top-bar .top-links{ display:flex; gap:18px; }
.top-bar .top-links span, .top-bar .top-links a{ display:inline-flex; align-items:center; gap:6px; }

.site-header{
  position: sticky; top:0; z-index:100;
  background: rgba(255,255,255,.97); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; padding-top:14px; padding-bottom:14px; }
.brand{ display:flex; align-items:center; gap:10px; }
.brand-mark{
  width:44px; height:44px; border-radius:10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.brand-mark svg{ width:26px; height:26px; }
.brand-name{ font-family: var(--font-heading); font-weight:800; color: var(--color-primary); font-size:1.05rem; line-height:1.15; }
.brand-name small{ display:block; font-family: var(--font-body); font-weight:500; color: var(--color-text-muted); font-size:.68rem; letter-spacing:.06em; text-transform:uppercase; }

.main-nav{ display:flex; align-items:center; gap:4px; }
.main-nav > ul{ display:flex; gap:2px; }
.main-nav a.nav-link{
  display:flex; align-items:center; gap:4px; padding:10px 14px; border-radius: var(--radius-sm);
  font-weight:600; font-size:.92rem; color: var(--color-text); position:relative;
}
.main-nav a.nav-link:hover, .main-nav a.nav-link.active{ color: var(--color-primary); background: var(--color-bg-alt); }
.has-dropdown{ position:relative; }
.dropdown{
  position:absolute; top:100%; left:0; background:#fff; min-width:280px;
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg); border:1px solid var(--color-border);
  padding:10px; opacity:0; visibility:hidden; transform: translateY(6px); transition:.16s ease;
}
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown{ opacity:1; visibility:visible; transform:none; }
.dropdown a{ display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius: var(--radius-sm); font-size:.9rem; font-weight:600; }
.dropdown a:hover{ background: var(--color-bg-alt); }
.dropdown .dot{ width:9px; height:9px; border-radius:50%; flex-shrink:0; }

.header-actions{ display:flex; align-items:center; gap:10px; }
.icon-btn{ position:relative; width:40px; height:40px; display:flex; align-items:center; justify-content:center; border-radius:50%; }
.icon-btn:hover{ background: var(--color-bg-alt); }
.cart-badge{
  position:absolute; top:-2px; right:-2px; background: var(--color-accent); color: var(--color-primary-dark);
  font-size:.68rem; font-weight:800; border-radius:50%; width:18px; height:18px; display:flex; align-items:center; justify-content:center;
}
.nav-toggle{ display:none; }

/* ===================== Hero ===================== */
.hero{
  background: radial-gradient(120% 140% at 15% 0%, #12365c 0%, var(--color-primary) 45%, var(--color-primary-dark) 100%);
  color:#fff; position:relative; overflow:hidden;
}
.hero::after{
  content:""; position:absolute; inset:0;
  background-image: radial-gradient(rgba(201,162,39,.18) 1.5px, transparent 1.5px);
  background-size: 26px 26px; opacity:.5; pointer-events:none;
}
.hero .container{ position:relative; display:grid; grid-template-columns: 1.15fr .85fr; gap:48px; align-items:center; padding-top:76px; padding-bottom:76px; }
.hero-badge{
  display:inline-flex; align-items:center; gap:8px; background: rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.25);
  padding:6px 14px; border-radius:999px; font-size:.8rem; font-weight:600; margin-bottom:20px; color: var(--color-accent-light);
}
.hero h1{ color:#fff; margin-bottom:20px; }
.hero h1 span{ color: var(--color-accent-light); }
.hero p.lead{ font-size:1.08rem; color: rgba(245,247,250,.82); max-width: 560px; margin-bottom:28px; }
.hero-cta{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:36px; }
.hero-stats{ display:flex; gap:32px; flex-wrap:wrap; }
.hero-stats .stat b{ display:block; font-size:1.6rem; font-family:var(--font-heading); color:#fff; }
.hero-stats .stat span{ font-size:.8rem; color: rgba(245,247,250,.7); }
.hero-markets{ display:flex; gap:10px; flex-wrap:wrap; margin-top:28px; }
.market-chip{ background: rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.2); padding:6px 12px; border-radius:8px; font-size:.78rem; font-weight:600; color:#fff; }

.hero-visual{ position:relative; }
.hero-card{
  background:#fff; border-radius: var(--radius-lg); padding:26px; box-shadow: var(--shadow-lg); color: var(--color-text);
}
.hero-card h4{ margin:0 0 14px; color: var(--color-primary); font-size:1rem; }
.pillar-mini{ display:flex; align-items:center; gap:12px; padding:10px 0; border-bottom:1px dashed var(--color-border); }
.pillar-mini:last-child{ border-bottom:none; }
.pillar-icon{ width:38px; height:38px; border-radius:10px; display:flex; align-items:center; justify-content:center; flex-shrink:0; color:#fff; }
.pillar-mini strong{ display:block; font-size:.88rem; color: var(--color-text); }
.pillar-mini span{ font-size:.76rem; color: var(--color-text-muted); }

/* ===================== Pillars / standards grid ===================== */
.pillars-grid{ display:grid; grid-template-columns: repeat(5,1fr); gap:20px; }
.pillar-card{
  background:#fff; border:1px solid var(--color-border); border-radius: var(--radius-md); padding:26px 20px;
  text-align:center; transition: .18s ease; box-shadow: var(--shadow-sm);
}
.pillar-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.pillar-card .pillar-icon{ width:56px; height:56px; margin:0 auto 16px; }
.pillar-card h3{ font-size:1.02rem; margin-bottom:8px; }
.pillar-card p{ font-size:.86rem; margin-bottom:14px; }
.pillar-card .tag{ font-size:.72rem; font-weight:700; letter-spacing:.04em; }

/* ===================== Cards / grids ===================== */
.grid{ display:grid; gap:26px; }
.grid-3{ grid-template-columns: repeat(3,1fr); }
.grid-4{ grid-template-columns: repeat(4,1fr); }
.grid-2{ grid-template-columns: repeat(2,1fr); }

.course-card{
  background:#fff; border:1px solid var(--color-border); border-radius: var(--radius-md); overflow:hidden;
  display:flex; flex-direction:column; box-shadow: var(--shadow-sm); transition:.18s ease;
}
.course-card:hover{ box-shadow: var(--shadow-md); transform: translateY(-3px); }
.course-thumb{
  height:150px; position:relative; display:flex; align-items:center; justify-content:center; color:#fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}
.course-thumb svg{ width:52px; height:52px; opacity:.9; }
.course-thumb .badge-type{
  position:absolute; top:12px; left:12px; background: rgba(255,255,255,.92); color: var(--color-primary);
  font-size:.68rem; font-weight:800; padding:4px 10px; border-radius:999px; text-transform:uppercase; letter-spacing:.03em;
}
.course-body{ padding:18px 20px 20px; display:flex; flex-direction:column; gap:8px; flex:1; }
.course-cat{ font-size:.72rem; font-weight:700; text-transform:uppercase; letter-spacing:.04em; }
.course-body h3{ font-size:1.02rem; margin-bottom:2px; }
.course-body h3 a:hover{ color: var(--color-accent-dark); }
.course-meta{ display:flex; gap:14px; font-size:.78rem; color: var(--color-text-muted); flex-wrap:wrap; }
.course-meta span{ display:flex; align-items:center; gap:5px; }
.course-foot{ margin-top:auto; display:flex; align-items:center; justify-content:space-between; padding-top:12px; border-top:1px solid var(--color-border); }
.price{ font-weight:800; color: var(--color-primary); font-size:1.05rem; }
.price small{ font-weight:500; color: var(--color-text-muted); text-decoration:line-through; margin-right:6px; font-size:.8rem; }

.badge{ display:inline-flex; align-items:center; gap:5px; font-size:.7rem; font-weight:700; padding:3px 9px; border-radius:999px; }

/* Filters */
.filter-bar{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:36px; }
.filter-chip{
  padding:9px 18px; border-radius:999px; border:1.5px solid var(--color-border); font-weight:600; font-size:.86rem;
  background:#fff; color: var(--color-text-muted); transition:.15s;
}
.filter-chip:hover{ border-color: var(--color-primary); color: var(--color-primary); }
.filter-chip.active{ background: var(--color-primary); border-color: var(--color-primary); color:#fff; }

.toolbar{ display:flex; justify-content:space-between; align-items:center; gap:16px; margin-bottom:24px; flex-wrap:wrap; }
.search-box{ display:flex; align-items:center; gap:10px; background:#fff; border:1.5px solid var(--color-border); border-radius: var(--radius-sm); padding:10px 16px; min-width:260px; }
.search-box input{ border:none; outline:none; flex:1; font-size:.9rem; font-family:inherit; }
.result-count{ font-size:.86rem; color: var(--color-text-muted); }

/* Category hero */
.cat-hero{ color:#fff; padding:64px 0 56px; position:relative; overflow:hidden; }
.cat-hero .container{ position:relative; }
.cat-hero .icon-lg{ width:64px; height:64px; border-radius:16px; background: rgba(255,255,255,.15); display:flex; align-items:center; justify-content:center; margin-bottom:22px; }
.cat-hero h1{ color:#fff; max-width:760px; }
.cat-hero p{ color: rgba(255,255,255,.85); max-width:640px; font-size:1.05rem; }
.cat-standards{ display:flex; gap:10px; flex-wrap:wrap; margin-top:22px; }
.cat-standards span{ background: rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.3); padding:6px 14px; border-radius:8px; font-size:.8rem; font-weight:700; }

/* Why us / features */
.feature-row{ display:flex; gap:18px; align-items:flex-start; margin-bottom:28px; }
.feature-row .f-icon{ width:48px; height:48px; border-radius:12px; background: var(--color-bg-alt); display:flex; align-items:center; justify-content:center; flex-shrink:0; color: var(--color-primary); }
.feature-row h4{ margin-bottom:4px; font-size:1rem; }
.feature-row p{ font-size:.9rem; margin:0; }

/* Stats strip */
.stats-strip{ display:grid; grid-template-columns: repeat(4,1fr); gap:24px; text-align:center; }
.stats-strip b{ display:block; font-family: var(--font-heading); font-size:2.1rem; color: var(--color-accent-light); }
.stats-strip span{ font-size:.85rem; color: rgba(255,255,255,.75); }

/* Testimonials */
.testimonial-card{ background:#fff; border-radius: var(--radius-md); padding:28px; border:1px solid var(--color-border); box-shadow: var(--shadow-sm); height:100%; display:flex; flex-direction:column; }
.testimonial-card .stars{ color: var(--color-accent); margin-bottom:14px; letter-spacing:2px; }
.testimonial-card p{ font-style:italic; color: var(--color-text); flex:1; }
.testimonial-person{ display:flex; align-items:center; gap:12px; margin-top:16px; }
.avatar-circle{ width:44px; height:44px; border-radius:50%; background: var(--color-bg-alt); display:flex; align-items:center; justify-content:center; font-weight:800; color: var(--color-primary); }
.testimonial-person strong{ display:block; font-size:.9rem; }
.testimonial-person span{ font-size:.78rem; color: var(--color-text-muted); }

/* Logo strip */
.logo-strip{ display:flex; flex-wrap:wrap; gap:16px; justify-content:center; align-items:center; }
.logo-strip .logo-chip{
  padding:14px 22px; border:1px solid var(--color-border); border-radius: var(--radius-sm); font-weight:700; color: var(--color-text-muted);
  font-size:.85rem; background: var(--color-bg-alt);
}

/* CTA band */
.cta-band{ background: linear-gradient(120deg, var(--color-primary), var(--color-primary-light)); color:#fff; border-radius: var(--radius-lg); padding:48px; display:flex; justify-content:space-between; align-items:center; gap:24px; flex-wrap:wrap; }
.cta-band h2{ color:#fff; margin-bottom:8px; }
.cta-band p{ color: rgba(255,255,255,.82); margin:0; }

/* FAQ accordion */
.faq-item{ border-bottom:1px solid var(--color-border); }
.faq-q{ width:100%; text-align:left; background:none; border:none; padding:20px 0; display:flex; justify-content:space-between; align-items:center; font-weight:700; font-size:1rem; color: var(--color-primary); }
.faq-q .plus{ transition:.2s; font-size:1.3rem; color: var(--color-accent-dark); }
.faq-item.open .plus{ transform: rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:.25s ease; }
.faq-a p{ padding-bottom:18px; margin:0; }

/* Forms */
.form-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:18px; }
.form-group{ margin-bottom:18px; display:flex; flex-direction:column; gap:6px; }
.form-group label{ font-weight:600; font-size:.88rem; }
.form-group .req{ color: var(--color-danger); }
.form-group input, .form-group select, .form-group textarea{
  padding:12px 14px; border:1.5px solid var(--color-border); border-radius: var(--radius-sm); font-family:inherit; font-size:.92rem; outline:none; transition:.15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus{ border-color: var(--color-primary); }
.form-hint{ font-size:.78rem; color: var(--color-text-muted); }
.form-error{ font-size:.78rem; color: var(--color-danger); display:none; }
.form-group.error input, .form-group.error textarea{ border-color: var(--color-danger); }
.form-group.error .form-error{ display:block; }
.checkbox-row{ display:flex; align-items:flex-start; gap:10px; font-size:.86rem; color: var(--color-text-muted); }
.checkbox-row input{ margin-top:3px; }

/* Payment methods */
.payment-methods{ display:grid; grid-template-columns: repeat(2,1fr); gap:14px; }
.payment-option{
  border:1.5px solid var(--color-border); border-radius: var(--radius-md); padding:16px; display:flex; align-items:center; gap:14px; cursor:pointer; transition:.15s; background:#fff;
}
.payment-option:hover{ border-color: var(--color-primary-light); }
.payment-option.selected{ border-color: var(--color-primary); background: rgba(11,42,74,.04); box-shadow: 0 0 0 3px rgba(11,42,74,.08); }
.payment-option input{ width:18px; height:18px; accent-color: var(--color-primary); flex-shrink:0; }
.pm-logo{ width:46px; height:32px; border-radius:6px; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:.68rem; color:#fff; flex-shrink:0; letter-spacing:.02em; }
.payment-option strong{ display:block; font-size:.9rem; }
.payment-option span{ font-size:.76rem; color: var(--color-text-muted); }
.payment-detail{ background: var(--color-bg-alt); border-radius: var(--radius-sm); padding:16px; margin-top:14px; font-size:.86rem; display:none; }
.payment-detail.show{ display:block; }
.qr-box{ width:120px; height:120px; background:#fff; border:1.5px dashed var(--color-border); border-radius: var(--radius-sm); display:flex; align-items:center; justify-content:center; font-size:.7rem; color: var(--color-text-muted); text-align:center; margin:10px 0; }

/* Cart */
.cart-table{ width:100%; border-collapse: collapse; }
.cart-table th{ text-align:left; font-size:.78rem; text-transform:uppercase; letter-spacing:.04em; color: var(--color-text-muted); padding:0 0 14px; border-bottom:2px solid var(--color-border); }
.cart-table td{ padding:18px 0; border-bottom:1px solid var(--color-border); vertical-align:middle; }
.cart-item{ display:flex; gap:14px; align-items:center; }
.cart-item .thumb{ width:56px; height:56px; border-radius:8px; background: var(--color-bg-alt); flex-shrink:0; display:flex; align-items:center; justify-content:center; color: var(--color-primary); }
.qty-control{ display:flex; align-items:center; border:1.5px solid var(--color-border); border-radius: var(--radius-sm); width:fit-content; }
.qty-control button{ width:30px; height:30px; background:none; border:none; font-weight:700; color: var(--color-primary); }
.qty-control span{ width:32px; text-align:center; font-weight:600; }
.remove-btn{ color: var(--color-danger); font-size:.82rem; font-weight:600; }
.summary-card{ background: var(--color-bg-alt); border-radius: var(--radius-md); padding:24px; position:sticky; top:100px; }
.summary-row{ display:flex; justify-content:space-between; font-size:.92rem; padding:8px 0; color: var(--color-text-muted); }
.summary-row.total{ font-size:1.15rem; font-weight:800; color: var(--color-primary); border-top:1.5px solid var(--color-border); margin-top:8px; padding-top:14px; }
.empty-state{ text-align:center; padding:60px 20px; }
.empty-state .icon-lg{ width:72px; height:72px; margin:0 auto 20px; background: var(--color-bg-alt); border-radius:50%; display:flex; align-items:center; justify-content:center; color: var(--color-text-muted); }

/* Coupon */
.coupon-row{ display:flex; gap:10px; margin:16px 0; }
.coupon-row input{ flex:1; }

/* Steps */
.steps-row{ display:flex; justify-content:center; gap:0; margin-bottom:44px; flex-wrap:wrap; }
.step{ display:flex; align-items:center; gap:10px; padding:0 22px; position:relative; }
.step:not(:last-child)::after{ content:""; position:absolute; right:-2px; top:16px; width:44px; height:2px; background: var(--color-border); }
.step-num{ width:32px; height:32px; border-radius:50%; background: var(--color-bg-alt); color: var(--color-text-muted); display:flex; align-items:center; justify-content:center; font-weight:800; font-size:.9rem; flex-shrink:0; }
.step.active .step-num{ background: var(--color-primary); color:#fff; }
.step.done .step-num{ background: var(--color-success); color:#fff; }
.step span{ font-weight:600; font-size:.86rem; color: var(--color-text-muted); }
.step.active span{ color: var(--color-primary); }

/* Blog */
.blog-card{ background:#fff; border:1px solid var(--color-border); border-radius: var(--radius-md); overflow:hidden; box-shadow: var(--shadow-sm); transition:.18s; }
.blog-card:hover{ box-shadow: var(--shadow-md); transform: translateY(-3px); }
.blog-thumb{ height:160px; background: linear-gradient(135deg, var(--color-bg-alt), #dfe6ee); display:flex; align-items:center; justify-content:center; color: var(--color-primary); }
.blog-body{ padding:20px; }
.blog-meta{ font-size:.76rem; color: var(--color-text-muted); display:flex; gap:12px; margin-bottom:10px; }

/* Breadcrumb */
.breadcrumb{ font-size:.84rem; color: var(--color-text-muted); padding:16px 0; }
.breadcrumb a:hover{ color: var(--color-primary); }
.breadcrumb .sep{ margin:0 8px; }

/* Detail page */
.detail-layout{ display:grid; grid-template-columns: 1.6fr 1fr; gap:44px; align-items:start; }
.detail-tabs{ display:flex; gap:6px; border-bottom:2px solid var(--color-border); margin-bottom:24px; }
.detail-tab{ padding:12px 18px; font-weight:700; font-size:.9rem; color: var(--color-text-muted); border-bottom:2px solid transparent; margin-bottom:-2px; }
.detail-tab.active{ color: var(--color-primary); border-color: var(--color-primary); }
.tab-panel{ display:none; }
.tab-panel.active{ display:block; }
.curriculum-item{ border:1px solid var(--color-border); border-radius: var(--radius-sm); margin-bottom:10px; padding:14px 16px; display:flex; justify-content:space-between; gap:12px; }
.curriculum-item strong{ font-size:.9rem; }
.curriculum-item span{ font-size:.78rem; color: var(--color-text-muted); }
.buy-box{ border:1px solid var(--color-border); border-radius: var(--radius-md); padding:24px; box-shadow: var(--shadow-sm); position:sticky; top:100px; }
.buy-box .price{ font-size:1.7rem; }
.buy-box ul{ margin:18px 0; display:flex; flex-direction:column; gap:10px; }
.buy-box ul li{ display:flex; gap:10px; font-size:.86rem; color: var(--color-text-muted); align-items:flex-start; }

/* Footer */
.site-footer{ background: var(--color-primary-dark); color: rgba(245,247,250,.75); padding-top:64px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr; gap:32px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,.1); }
.footer-grid h5{ color:#fff; font-size:.88rem; text-transform:uppercase; letter-spacing:.05em; margin-bottom:18px; }
.footer-grid li{ margin-bottom:10px; font-size:.88rem; }
.footer-grid a:hover{ color:#fff; }
.footer-brand p{ color: rgba(245,247,250,.65); font-size:.88rem; margin:14px 0; }
.footer-contact-item{ display:flex; gap:10px; font-size:.85rem; margin-bottom:10px; align-items:flex-start; }
.social-row{ display:flex; gap:10px; margin-top:16px; }
.social-row a{ width:36px; height:36px; border-radius:50%; background: rgba(255,255,255,.08); display:flex; align-items:center; justify-content:center; }
.social-row a:hover{ background: var(--color-accent); color: var(--color-primary-dark); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding:22px 0; font-size:.82rem; flex-wrap:wrap; gap:10px; }
.footer-bottom .links{ display:flex; gap:18px; flex-wrap:wrap; }
.payment-mini{ display:flex; gap:6px; flex-wrap:wrap; }
.payment-mini .pm-logo{ width:36px; height:26px; font-size:.58rem; }

/* Back to top */
.back-to-top{
  position:fixed; bottom:26px; right:26px; width:46px; height:46px; border-radius:50%; background: var(--color-primary);
  color:#fff; display:flex; align-items:center; justify-content:center; box-shadow: var(--shadow-md); z-index:90; opacity:0; visibility:hidden; transition:.2s; border:none;
}
.back-to-top.show{ opacity:1; visibility:visible; }

/* Toast */
.toast{
  position:fixed; top:90px; right:24px; background: var(--color-primary); color:#fff; padding:14px 22px; border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg); z-index:200; transform: translateX(120%); transition:.3s ease; display:flex; align-items:center; gap:10px; font-size:.9rem; font-weight:600;
}
.toast.show{ transform: translateX(0); }
.toast.error{ background: var(--color-danger); }

/* Mobile nav overlay */
.mobile-nav-overlay{ display:none; }

/* Utility */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; } .mb-0{ margin-bottom:0; }
.muted{ color: var(--color-text-muted); }
.container-narrow{ max-width:820px; margin:0 auto; }
.divider{ height:1px; background: var(--color-border); margin:32px 0; }
.legal-content h2{ margin-top:2em; }
.legal-content h3{ margin-top:1.4em; }
.legal-content p, .legal-content li{ color: var(--color-text); }
.legal-content ul{ list-style: disc; padding-left:22px; margin-bottom:1em; }
.legal-content ol{ padding-left:22px; margin-bottom:1em; }
.placeholder-note{ background:#FFF6E0; border:1px dashed var(--color-accent-dark); color:#6b5514; padding:12px 16px; border-radius: var(--radius-sm); font-size:.85rem; margin-bottom:20px; }

/* ===================== Responsive ===================== */
@media (max-width: 1024px){
  .pillars-grid{ grid-template-columns: repeat(3,1fr); }
  .grid-4{ grid-template-columns: repeat(2,1fr); }
  .grid-3{ grid-template-columns: repeat(2,1fr); }
  .footer-grid{ grid-template-columns: 1fr 1fr 1fr; }
  .hero .container{ grid-template-columns: 1fr; }
  .hero-visual{ display:none; }
  .detail-layout{ grid-template-columns: 1fr; }
}
@media (max-width: 760px){
  .main-nav{ position:fixed; top:0; right:-100%; width:82%; max-width:340px; height:100vh; background:#fff; flex-direction:column;
    align-items:stretch; padding:90px 24px 24px; box-shadow: var(--shadow-lg); transition:.25s ease; overflow-y:auto; z-index:99; }
  .main-nav.open{ right:0; }
  .main-nav > ul{ flex-direction:column; gap:0; }
  .has-dropdown .dropdown{ position:static; opacity:1; visibility:visible; transform:none; box-shadow:none; border:none; display:none; padding-left:12px; }
  .has-dropdown.open .dropdown{ display:block; }
  .nav-toggle{ display:flex; width:40px; height:40px; align-items:center; justify-content:center; background:none; border:none; }
  .mobile-nav-overlay{ position:fixed; inset:0; background: rgba(11,42,74,.5); z-index:98; }
  .mobile-nav-overlay.show{ display:block; }
  .pillars-grid{ grid-template-columns: repeat(2,1fr); }
  .grid-4, .grid-3, .grid-2{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .form-grid{ grid-template-columns: 1fr; }
  .payment-methods{ grid-template-columns: 1fr; }
  .stats-strip{ grid-template-columns: repeat(2,1fr); gap:28px; }
  .hero-stats{ gap:20px; }
  .cta-band{ flex-direction:column; text-align:center; }
  section{ padding:52px 0; }
}