/* ── IA guide styles (shared across ia-guide hub + sub-pages) ── */

/* Breadcrumb (replaces the old sticky sub-nav) */
.ia-breadcrumb { max-width: var(--maxw); margin: 0 auto; padding: 22px 16px 0; font-size: .85rem; color: var(--ink-soft); }
.ia-breadcrumb a { color: var(--brand); text-decoration: none; }
.ia-breadcrumb a:hover { text-decoration: underline; }
.ia-breadcrumb span { margin: 0 7px; color: var(--ink-soft); }

/* Section wrapper — always visible (each sub-page shows one section) */
.ia-section { display: block; max-width: var(--maxw); margin: 0 auto; padding: 30px 16px 80px; }

/* Hero */
.ia-hero { text-align: center; padding: 64px 16px 48px; }
.ia-hero h1 { font-family: var(--font-serif); font-size: clamp(1.7rem, 5vw, 2.6rem); font-weight: 600; color: var(--ink); margin: 0 0 14px; }
.ia-hero h1 em { color: var(--brand); font-style: italic; }
.ia-hero p { font-size: 1.1rem; color: var(--ink-soft); max-width: 600px; margin: 0 auto 36px; }
.ia-hero-cards { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; max-width: 760px; margin: 0 auto; }
.ia-hero-card { background: var(--surface); border: 2px solid var(--line); border-radius: var(--radius); padding: 18px 24px; cursor: pointer; text-align: center; min-width: 130px; transition: transform .15s, box-shadow .15s, border-color .15s; box-shadow: var(--shadow-sm); text-decoration: none; display: block; }
.ia-hero-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--brand); text-decoration: none; }
.ia-hero-card .ic { font-size: 1.6rem; margin-bottom: 6px; }
.ia-hero-card .lbl { font-size: .85rem; font-weight: 600; color: var(--ink); }

/* Overview / home content */
.ia-band { padding: 56px 16px; }
.ia-band.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ia-band-inner { max-width: 860px; margin: 0 auto; }
.ia-band h2 { font-family: var(--font-serif); font-size: 1.75rem; color: var(--ink); margin: 0 0 12px; }
.ia-band h3 { font-family: var(--font-serif); font-size: 1.2rem; color: var(--ink); margin: 36px 0 14px; }
.ia-band p { color: var(--ink-soft); line-height: 1.75; margin: 0 0 14px; }
.ia-band p strong { color: var(--ink); }
.ia-band .lead { font-size: 1.05rem; }

.ia-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin: 32px 0; }
.ia-stat { background: var(--paper); border: 2px solid var(--line); border-radius: 14px; padding: 22px 16px; text-align: center; }
.ia-stat-val { font-family: var(--font-serif); font-size: 2.2rem; font-weight: 600; color: var(--brand); line-height: 1; margin-bottom: 7px; }
.ia-stat-label { font-size: .8rem; color: var(--ink-soft); line-height: 1.4; }

/* Criteria grid */
.ia-crit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.ia-crit { background: var(--surface); border: 2px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.ia-crit-head { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); margin-bottom: 6px; font-size: .92rem; }
.ia-crit-letter { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--navy); color: #fff; font-size: .85rem; font-weight: 700; flex-shrink: 0; }
.ia-crit-marks { font-size: .78rem; color: var(--brand); font-weight: 700; margin-bottom: 8px; text-transform: uppercase; letter-spacing: .05em; }
.ia-crit p { font-size: .86rem; color: var(--ink-soft); line-height: 1.6; margin: 0; }

/* Structure steps */
.ia-steps { display: flex; flex-direction: column; gap: 0; margin: 24px 0; }
.ia-step { display: flex; gap: 0; }
.ia-step-line { display: flex; flex-direction: column; align-items: center; width: 36px; flex-shrink: 0; }
.ia-step-num { width: 32px; height: 32px; border-radius: 50%; background: var(--navy); color: #fff; display: flex; align-items: center; justify-content: center; font-size: .85rem; font-weight: 700; flex-shrink: 0; }
.ia-step-connector { width: 2px; flex: 1; min-height: 14px; background: var(--line); }
.ia-step:last-child .ia-step-connector { display: none; }
.ia-step-body { padding: 4px 0 18px 14px; flex: 1; }
.ia-step-body h4 { font-size: .95rem; font-weight: 700; color: var(--ink); margin: 0 0 4px; }
.ia-step-body p { font-size: .86rem; color: var(--ink-soft); margin: 0; line-height: 1.6; }

/* Grade-7 tips grid */
.ia-tips-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin: 24px 0; }
.ia-tip-box { background: var(--surface); border: 2px solid var(--line); border-radius: 14px; padding: 18px 20px; }
.ia-tip-box .tip-head { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: .92rem; color: var(--ink); margin-bottom: 8px; }
.ia-tip-box .tip-ic { font-size: 1.3rem; }
.ia-tip-box p { font-size: .86rem; color: var(--ink-soft); margin: 0; line-height: 1.6; }

/* Alert box */
.ia-alert { background: #fff8f0; border: 2px solid #f0d5b8; border-radius: 12px; padding: 16px 20px; margin: 20px 0; font-size: .9rem; color: var(--ink); line-height: 1.7; }
.ia-alert-green { background: #f0faf4; border-color: #bbf7d0; }
.ia-alert strong { color: var(--brand); }
.ia-alert-green strong { color: #166534; }

/* CTA panel */
.ia-cta-panel { background: var(--navy); border-radius: var(--radius); padding: 40px 32px; text-align: center; margin: 0; }
.ia-cta-panel h3 { font-family: var(--font-serif); color: #fff; font-size: 1.5rem; margin: 0 0 10px; }
.ia-cta-panel p { color: rgba(255,255,255,.75); margin: 0 0 24px; }
.ia-nav-cards { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Section headings */
.sec-title { font-family: var(--font-serif); font-size: 1.6rem; font-weight: 700; color: var(--ink); margin: 0 0 6px; }
.sec-sub { color: var(--ink-soft); font-size: .95rem; margin: 0 0 28px; }

/* Tags */
.tag { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.tag-sl  { background: #f6e7da; color: var(--brand); }
.tag-hl  { background: #efeaf7; color: #6a4ca8; }
.tag-ai  { background: #e1efe9; color: #2f6f5e; }
.tag-aa  { background: #f6ece0; color: #b06a00; }
.tag-sport       { background: #fce7f3; color: #be185d; }
.tag-music       { background: #efeaf7; color: #6a4ca8; }
.tag-nature      { background: #e3f3ea; color: #2f8f6b; }
.tag-economics   { background: #f6ece0; color: #b06a00; }
.tag-architecture{ background: #e0f2fe; color: #0369a1; }
.tag-medicine    { background: #f7e7e6; color: #c0413f; }
.tag-art         { background: #fdf4ff; color: #9333ea; }
.tag-technology  { background: #f1ece2; color: #374151; }
.tag-environment { background: #e3f3ea; color: #2f8f6b; }
.tag-food        { background: #fff7ed; color: #c2410c; }

/* Topic cards */
.topic-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(320px,1fr)); gap: 16px; }
.topic-card { background: var(--surface); border: 2px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-sm); transition: box-shadow .15s; }
.topic-card:hover { box-shadow: var(--shadow-md); }
.topic-card h3 { font-size: .95rem; font-weight: 700; color: var(--ink); margin: 0 0 8px; }
.topic-card p { font-size: .83rem; color: var(--ink-soft); margin: 0 0 10px; line-height: 1.5; }
.topic-tags { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 8px; }
.topic-maths { font-size: .78rem; color: var(--ink-soft); font-style: italic; }
.topic-count { color: var(--ink-soft); font-size: .85rem; margin-bottom: 16px; }

/* Filter bar */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.filter-bar input { flex: 1; min-width: 200px; padding: 9px 14px; border: 2px solid var(--line); border-radius: 8px; font-size: .9rem; font-family: var(--font-sans); outline: none; background: var(--surface); color: var(--ink); }
.filter-bar input:focus { border-color: var(--brand); }
.filter-select { padding: 9px 12px; border: 2px solid var(--line); border-radius: 8px; font-size: .85rem; font-family: var(--font-sans); background: var(--surface); color: var(--ink); cursor: pointer; outline: none; }
.filter-select:focus { border-color: var(--brand); }
.no-results { text-align: center; padding: 40px; color: var(--ink-soft); font-size: .9rem; }

/* Planner */
.planner-stages { display: flex; flex-direction: column; gap: 0; }
.stage { display: flex; gap: 0; }
.stage-line { display: flex; flex-direction: column; align-items: center; width: 40px; flex-shrink: 0; }
.stage-dot { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: .9rem; color: #fff; z-index: 1; flex-shrink: 0; }
.stage-connector { width: 2px; flex: 1; min-height: 20px; background: var(--line); }
.stage:last-child .stage-connector { display: none; }
.stage-content { background: var(--surface); border: 2px solid var(--line); border-radius: var(--radius); padding: 16px 18px; margin: 0 0 12px 12px; flex: 1; box-shadow: var(--shadow-sm); }
.stage-content h3 { font-size: .95rem; font-weight: 700; margin: 0 0 6px; }
.stage-content p { font-size: .85rem; color: var(--ink-soft); margin: 0 0 10px; }
.stage-tasks { list-style: none; padding: 0; margin: 0 0 10px; }
.stage-tasks li { font-size: .83rem; padding: 4px 0; color: var(--ink); display: flex; align-items: flex-start; gap: 8px; }
.stage-tasks li::before { content: '→'; color: var(--ink-soft); flex-shrink: 0; }
.stage-tip { background: #fefce8; border: 2px solid #b06a00; border-radius: 8px; padding: 8px 12px; font-size: .82rem; color: #78350f; }

/* Timeline */
.timeline-box { background: var(--surface); border: 2px solid var(--line); border-radius: var(--radius); padding: 20px 24px; box-shadow: var(--shadow-sm); margin-bottom: 32px; }
.timeline-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 20px; }
.tl-group { display: flex; flex-direction: column; gap: 5px; }
.tl-group label { font-size: .82rem; font-weight: 600; color: var(--ink-soft); }
.tl-group input, .tl-group select { padding: 9px 12px; border: 2px solid var(--line); border-radius: 8px; font-size: .9rem; font-family: var(--font-sans); outline: none; background: var(--surface); color: var(--ink); }
.tl-group input:focus, .tl-group select:focus { border-color: var(--brand); }
.milestone { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); align-items: center; }
.milestone:last-child { border-bottom: none; }
.milestone-date { min-width: 110px; font-size: .82rem; font-weight: 600; color: var(--ink); }
.milestone-label { font-size: .88rem; color: var(--ink); flex: 1; }
.milestone-badge { font-size: .75rem; font-weight: 600; padding: 2px 8px; border-radius: 20px; white-space: nowrap; }
.mb-start  { background: #f6e7da; color: var(--brand); }
.mb-mid    { background: #f6ece0; color: #b06a00; }
.mb-end    { background: #f7e7e6; color: #c0413f; }
.mb-submit { background: #e3f3ea; color: #2f8f6b; }

/* Criteria tabs (inner control on the criteria page) */
.crit-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 24px; }
.crit-tab { padding: 8px 16px; border-radius: 8px; font-size: .83rem; font-weight: 600; cursor: pointer; border: 2px solid var(--line); background: var(--surface); color: var(--ink); transition: all .15s; }
.crit-tab:hover { border-color: var(--brand); }
.crit-tab.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.crit-panel { display: none; }
.crit-panel.active { display: block; }
.crit-header { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; flex-wrap: wrap; }
.crit-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; flex-shrink: 0; }
.crit-header h3 { font-size: 1.2rem; font-weight: 700; color: var(--ink); margin: 0 0 4px; }
.crit-header p { font-size: .85rem; color: var(--ink-soft); margin: 0; }
.crit-marks-badge { display: inline-block; background: var(--navy); color: #fff; padding: 3px 10px; border-radius: 20px; font-size: .78rem; font-weight: 600; }
.mark-table { width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: .83rem; }
.mark-table th { background: var(--navy); color: #fff; padding: 10px 14px; text-align: left; font-size: .82rem; font-weight: 600; }
.mark-table td { padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.mark-table tr:last-child td { border-bottom: none; }
.mark-table tr:nth-child(even) td { background: var(--paper); }
.mark-score { font-weight: 700; color: var(--ink); white-space: nowrap; }
.crit-example { background: #f6e7da; border: 2px solid #f0d5b8; border-radius: 8px; padding: 12px 16px; margin-bottom: 16px; font-size: .85rem; color: var(--ink); }
.dos-donts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.dos, .donts { border-radius: var(--radius); padding: 14px 16px; }
.dos   { background: #e3f3ea; border: 2px solid #bbf7d0; }
.donts { background: #f7e7e6; border: 2px solid #fecaca; }
.dos h4   { color: #2f8f6b; font-size: .85rem; margin: 0 0 8px; }
.donts h4 { color: #c0413f; font-size: .85rem; margin: 0 0 8px; }
.dos ul, .donts ul { list-style: none; padding: 0; margin: 0; }
.dos ul li, .donts ul li { font-size: .82rem; padding: 3px 0; display: flex; gap: 6px; }
.dos ul li::before   { content: '✓'; color: #2f8f6b; font-weight: 700; flex-shrink: 0; }
.donts ul li::before { content: '✗'; color: #c0413f; font-weight: 700; flex-shrink: 0; }

/* Checklist */
.cl-group { margin-bottom: 24px; }
.cl-group h3 { font-size: .95rem; font-weight: 700; color: var(--ink); margin: 0 0 10px; }
.cl-item { display: flex; align-items: flex-start; gap: 10px; padding: 9px 12px; border-radius: 8px; cursor: pointer; transition: background .1s; margin-bottom: 4px; }
.cl-item:hover { background: var(--surface-2); }
.cl-item input[type="checkbox"] { width: 18px; height: 18px; cursor: pointer; flex-shrink: 0; margin-top: 1px; accent-color: #2f6f5e; }
.cl-item label { font-size: .87rem; cursor: pointer; line-height: 1.5; }
.cl-item.checked label { text-decoration: line-through; color: var(--ink-soft); }
.progress-wrap { background: var(--line); border-radius: 20px; height: 10px; margin-bottom: 6px; overflow: hidden; }
.progress-fill { height: 100%; background: #2f6f5e; border-radius: 20px; transition: width .3s; }
.progress-text { font-size: .85rem; color: var(--ink-soft); margin-bottom: 24px; }

/* Pitfalls */
.pitfall { background: var(--surface); border: 2px solid #c0413f; border-radius: var(--radius); padding: 18px 20px; margin-bottom: 14px; box-shadow: var(--shadow-sm); }
.pitfall h3 { font-size: .95rem; font-weight: 700; color: #c0413f; margin: 0 0 6px; }
.pitfall p { font-size: .87rem; color: var(--ink-soft); margin: 0 0 12px; line-height: 1.5; }
.pitfall-fix { background: #e3f3ea; border-radius: 8px; padding: 10px 14px; font-size: .84rem; color: #166534; }

/* Responsive */
@media (max-width: 700px) {
  .ia-hero h1 { font-size: 1.8rem; }
  .ia-stats { grid-template-columns: 1fr 1fr; }
  .ia-crit-grid { grid-template-columns: 1fr; }
  .ia-tips-grid { grid-template-columns: 1fr; }
  .dos-donts { grid-template-columns: 1fr; }
  .mark-table { font-size: .78rem; }
  .timeline-row { flex-direction: column; }
  .ia-cta-panel { padding: 28px 20px; }
}