@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ═══════════════════════════════════════════════════════════════
   ROOT VARIABLES
═══════════════════════════════════════════════════════════════ */
:root {
  --bg-dark:    #050510;
  --card:       #0d0d1f;
  --input-bg:   #111128;
  --cyan:       #00f3ff;
  --purple:     #bc13fe;
  --accent:     #a78bfa;
  --text-main:  #fff;
  --text-dim:   #8888aa;
  --text-muted: #555577;
  --green:      #22c55e;
  --red:        #ef4444;
  --gold:       #f59e0b;
  --border:     #1e1e3a;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
}


/* ── Dropdown (not in components.css) ── */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger {
  background: none; border: none; color: var(--text-dim);
  font-size: 0.82rem; font-weight: 500; padding: 6px 8px;
  border-radius: 6px; cursor: pointer; font-family: inherit;
  transition: color 0.2s, background 0.2s; white-space: nowrap;
}
.nav-dropdown-trigger:hover { color: var(--text-main); background: rgba(255,255,255,0.06); }
.nav-dropdown-menu {
  display: none; position: absolute; top: calc(100% + 6px); left: 0;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 0.5rem; min-width: 160px; z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu,
.nav-dropdown-trigger:focus + .nav-dropdown-menu { display: flex; flex-direction: column; gap: 0.1rem; }
.nav-dropdown-menu a { color: var(--text-dim); text-decoration: none; font-size: 0.82rem; padding: 0.35rem 0.6rem; border-radius: 6px; display: block; }
.nav-dropdown-menu a:hover { color: var(--text-main); background: rgba(255,255,255,0.06); }


/* ═══════════════════════════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════════════════════════ */
.dashboard-container { max-width: 1600px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.page-header { margin-bottom: 1.75rem; }
.page-title { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: var(--text-main); }
.page-subtitle { color: var(--text-dim); font-size: 1rem; margin-top: 0.3rem; }

/* Disclaimer banner */
.disclaimer-banner {
  display: flex; align-items: flex-start; gap: 0.6rem;
  background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2);
  border-radius: 8px; padding: 0.7rem 1rem;
  font-size: 0.82rem; color: var(--gold); margin-bottom: 1.25rem; line-height: 1.5;
}
.disc-icon { font-size: 1rem; flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════════
   TABS
═══════════════════════════════════════════════════════════════ */
.tab-bar { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.tab-btn { background: var(--card); border: 1px solid var(--border); color: var(--text-dim); padding: 0.55rem 1.25rem; border-radius: 8px; cursor: pointer; font-size: 0.9rem; font-weight: 500; font-family: inherit; transition: all 0.2s; }
.tab-btn:hover { color: var(--text-main); border-color: var(--accent); }
.tab-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ═══════════════════════════════════════════════════════════════
   CALC GRID
═══════════════════════════════════════════════════════════════ */
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 900px) { .calc-grid { grid-template-columns: minmax(0, 1fr);  overflow: hidden;} }

/* ═══════════════════════════════════════════════════════════════
   CARDS
═══════════════════════════════════════════════════════════════ */
.card { background: var(--card); border-radius: 14px; padding: 1.75rem; border: 1px solid var(--border); }
.input-card  { border-left: 3px solid var(--cyan); }
.result-card { border-left: 3px solid var(--purple); }
.card-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 1.25rem; color: var(--text-main); }

/* ═══════════════════════════════════════════════════════════════
   FORMS
═══════════════════════════════════════════════════════════════ */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-dim); margin-bottom: 0.35rem; text-transform: uppercase; letter-spacing: 0.04em; }
.input-field { width: 100%; background: var(--input-bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text-main); font-family: inherit; font-size: 0.95rem; padding: 0.6rem 0.9rem; outline: none; transition: border-color 0.2s; }
.input-field:focus { border-color: var(--cyan); }
.input-with-prefix { display: flex; align-items: center; background: var(--input-bg); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: border-color 0.2s; }
.input-with-prefix:focus-within { border-color: var(--cyan); }
.prefix { padding: 0 0.7rem; color: var(--text-dim); font-size: 0.9rem; font-weight: 600; border-right: 1px solid var(--border); background: rgba(255,255,255,0.03); display: flex; align-items: center; height: 100%; }
.input-with-prefix .input-field { border: none; background: transparent; border-radius: 0; }
.input-with-prefix .input-field:focus { border: none; }

/* State hint */
.state-hint { font-size: 0.75rem; color: var(--text-dim); margin-top: 0.4rem; }
.state-hint strong { color: var(--text-main); }

/* ═══════════════════════════════════════════════════════════════
   CHIP GROUPS
═══════════════════════════════════════════════════════════════ */
.chip-group { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.3rem; }
.chip-btn {
  padding: 0.32rem 0.72rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 20px;
  font-family: inherit;
  font-size: 0.79rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.chip-btn:hover  { border-color: var(--accent); color: var(--accent); }
.chip-btn.active { background: rgba(124,58,237,0.15); border-color: var(--accent); color: var(--accent); font-weight: 700; }

/* ═══════════════════════════════════════════════════════════════
   PROPERTY CHECKBOXES
═══════════════════════════════════════════════════════════════ */
.prop-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem; margin-top: 0.3rem; }
.prop-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.65rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  color: var(--text-dim);
}
.prop-check:hover { border-color: var(--accent); }
.prop-check input[type="checkbox"] { width: 15px; height: 15px; accent-color: var(--accent); flex-shrink: 0; cursor: pointer; }
.prop-check:has(input:checked) { border-color: var(--accent); background: rgba(124,58,237,0.07); color: var(--text-main); }

/* ═══════════════════════════════════════════════════════════════
   CALCULATE BUTTON
═══════════════════════════════════════════════════════════════ */
.btn-calculate { width: 100%; margin-top: 1rem; padding: 0.85rem; background: var(--accent); border: none; border-radius: 10px; color: #fff; font-family: inherit; font-size: 1rem; font-weight: 700; cursor: pointer; transition: opacity 0.2s, transform 0.15s; }
.btn-calculate:hover { opacity: 0.88; transform: translateY(-1px); }

/* ═══════════════════════════════════════════════════════════════
   HERO RESULT
═══════════════════════════════════════════════════════════════ */
.hero-result { text-align: center; padding: 1.5rem 1rem; margin-bottom: 1.25rem; background: rgba(124,58,237,0.06); border-radius: 12px; border: 1px solid rgba(124,58,237,0.2); }
.hero-label { font-size: 0.8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 0.4rem; }
.hero-value { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; color: var(--accent); margin-bottom: 0.3rem; }
.hero-sub   { font-size: 0.82rem; color: var(--text-dim); }

/* ═══════════════════════════════════════════════════════════════
   STAT GRID
═══════════════════════════════════════════════════════════════ */
.section-label { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); margin-bottom: 0.85rem; margin-top: 1rem; }
.stat-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 0.6rem; margin: 1rem 0; }
.stat-cell { background: var(--input-bg); border-radius: 8px; padding: 0.75rem 0.6rem; text-align: center; }
.stat-val  { font-size: 0.95rem; font-weight: 700; color: var(--text-main); }
.stat-lbl  { font-size: 0.7rem; color: var(--text-dim); margin-top: 0.2rem; }
.accent-red   { color: var(--red); }
.accent-green { color: var(--green); }
.accent-gold  { color: var(--gold); }

/* ═══════════════════════════════════════════════════════════════
   DONUT CHART
═══════════════════════════════════════════════════════════════ */
.donut-wrap { position: relative; height: 200px; margin: 0.5rem 0 1rem; }

/* ═══════════════════════════════════════════════════════════════
   FORMULA STRIP
═══════════════════════════════════════════════════════════════ */
.formula-strip { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.75rem 0; }
.formula-pill  { background: rgba(124,58,237,0.1); border: 1px solid rgba(124,58,237,0.25); color: var(--accent); font-size: 0.74rem; padding: 0.3rem 0.7rem; border-radius: 20px; font-weight: 600; }

/* ═══════════════════════════════════════════════════════════════
   ALERT STACK
═══════════════════════════════════════════════════════════════ */
.alert-stack { display: flex; flex-direction: column; gap: 0.5rem; margin: 0.75rem 0; }
.alert       { display: flex; align-items: flex-start; gap: 0.6rem; padding: 0.6rem 0.8rem; border-radius: 8px; font-size: 0.82rem; line-height: 1.4; }
.alert-warn  { background: rgba(245,158,11,0.1);  border: 1px solid rgba(245,158,11,0.25); color: var(--gold); }
.alert-info  { background: rgba(0,243,255,0.07);  border: 1px solid rgba(0,243,255,0.2);   color: var(--cyan); }
.alert-good  { background: rgba(34,197,94,0.08);  border: 1px solid rgba(34,197,94,0.25);  color: var(--green); }
.alert-danger{ background: rgba(239,68,68,0.1);   border: 1px solid rgba(239,68,68,0.25);  color: var(--red); }
.alert-icon  { font-size: 0.9rem; flex-shrink: 0; margin-top: 1px; }

/* ═══════════════════════════════════════════════════════════════
   ACTION BAR
═══════════════════════════════════════════════════════════════ */
.action-bar { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.btn-action { flex: 1; min-width: 80px; padding: 0.55rem 0.8rem; background: var(--input-bg); border: 1px solid var(--border); color: var(--text-dim); border-radius: 8px; font-family: inherit; font-size: 0.82rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.btn-action:hover { border-color: var(--accent); color: var(--accent); }

/* ═══════════════════════════════════════════════════════════════
   TOAST
═══════════════════════════════════════════════════════════════ */
.dc-toast { position: fixed; bottom: 1.5rem; right: 1.5rem; background: #22c55e; color: #fff; padding: 0.6rem 1.2rem; border-radius: 8px; font-size: 0.88rem; font-weight: 600; z-index: 9999; box-shadow: 0 4px 16px rgba(0,0,0,0.3); transition: opacity 0.4s; }
.dc-toast--hidden { opacity: 0; pointer-events: none; }

/* ═══════════════════════════════════════════════════════════════
   SCENARIO CARDS
═══════════════════════════════════════════════════════════════ */
.scenario-cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 1rem; margin-bottom: 0.5rem; }
.scenario-card { background: var(--input-bg); border-radius: 12px; padding: 1.25rem; border: 1px solid var(--border); transition: all 0.2s; }
.scenario-card:hover { border-color: rgba(255,255,255,0.15); }
.scenario-card--best   { border-left: 4px solid var(--green); }
.scenario-card--likely { border-left: 4px solid var(--gold); }
.scenario-card--worst  { border-left: 4px solid var(--red); }
.sc-label  { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 0.4rem; }
.sc-value  { font-size: 1.4rem; font-weight: 800; margin-bottom: 0.35rem; }
.scenario-card--best   .sc-value { color: var(--green); }
.scenario-card--likely .sc-value { color: var(--gold); }
.scenario-card--worst  .sc-value { color: var(--red); }
.sc-type { font-size: 0.82rem; font-weight: 600; color: var(--text-main); margin-bottom: 0.35rem; }
.sc-desc { font-size: 0.77rem; color: var(--text-dim); line-height: 1.5; margin-bottom: 0.75rem; }
.sc-breakdown-lines { display: flex; flex-direction: column; gap: 0.25rem; padding-top: 0.5rem; border-top: 1px solid var(--border); }
.sc-bl { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-dim); }
.sc-bl span:last-child { color: var(--text-main); font-weight: 600; }

/* ═══════════════════════════════════════════════════════════════
   CHART BLOCK
═══════════════════════════════════════════════════════════════ */
.chart-block { position: relative; min-width: 0; overflow: hidden; }

/* ═══════════════════════════════════════════════════════════════
   SENSITIVITY MATRIX
═══════════════════════════════════════════════════════════════ */
.matrix-wrap { overflow-x: auto; }
.matrix-table { border-collapse: collapse; font-size: 0.78rem; min-width: 460px; width: 100%; }
.matrix-table th, .matrix-table td { padding: 0.45rem 0.7rem; text-align: center; border: 1px solid var(--border); }
.matrix-table th { background: var(--input-bg); color: var(--text-dim); font-weight: 600; }
.matrix-table td { color: var(--text-main); font-weight: 500; }
.matrix-vlow  { background: rgba(34,197,94,0.25)  !important; color: #22c55e  !important; }
.matrix-low   { background: rgba(34,197,94,0.12)  !important; color: #86efac  !important; }
.matrix-med   { background: rgba(245,158,11,0.2)  !important; color: #f59e0b  !important; }
.matrix-high  { background: rgba(249,115,22,0.2)  !important; color: #f97316  !important; }
.matrix-vhigh { background: rgba(239,68,68,0.2)   !important; color: #ef4444  !important; }
.matrix-cell-current { outline: 2px solid var(--accent) !important; outline-offset: -2px; font-weight: 800 !important; }

/* ═══════════════════════════════════════════════════════════════
   STRATEGY GRID
═══════════════════════════════════════════════════════════════ */
.strategy-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px,1fr)); gap: 1rem; }
.strategy-card { background: var(--input-bg); border-radius: 10px; padding: 1rem 1rem 1.1rem; border: 1px solid var(--border); border-top: 3px solid var(--green); }
.strategy-icon    { font-size: 1.5rem; margin-bottom: 0.4rem; }
.strategy-title   { font-size: 0.88rem; font-weight: 700; color: var(--text-main); margin-bottom: 0.2rem; }
.strategy-savings { font-size: 0.8rem; font-weight: 700; color: var(--green); margin-bottom: 0.4rem; }
.strategy-desc    { font-size: 0.77rem; color: var(--text-dim); line-height: 1.5; }

/* ═══════════════════════════════════════════════════════════════
   RECOVERY CHART
═══════════════════════════════════════════════════════════════ */
.recovery-chart-wrap { position: relative; height: 260px; margin: 0.5rem 0 0.75rem; }
.recovery-legend { display: flex; flex-wrap: wrap; gap: 1rem; font-size: 0.78rem; color: var(--text-dim); margin-bottom: 1rem; }
.rl-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 0.35rem; flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════════
   CHECKLIST
═══════════════════════════════════════════════════════════════ */
.checklist { display: flex; flex-direction: column; gap: 0.4rem; }
.check-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  background: var(--input-bg);
  border-radius: 8px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  font-size: 0.86rem;
  color: var(--text-main);
}
.check-item:hover { border-color: rgba(255,255,255,0.15); }
.check-item.done  { border-color: var(--green); background: rgba(34,197,94,0.05); }
.check-item.done .ci-text { text-decoration: line-through; color: var(--text-dim); }
.ci-checkbox {
  width: 17px; height: 17px;
  appearance: none; -webkit-appearance: none;
  border: 2px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.2s;
  background: var(--input-bg);
}
.ci-checkbox:checked { background: var(--green); border-color: var(--green); }
.ci-text     { flex: 1; line-height: 1.4; }
.ci-priority { font-size: 0.68rem; font-weight: 700; padding: 0.2rem 0.45rem; border-radius: 10px; flex-shrink: 0; white-space: nowrap; }
.ci-p1 { background: rgba(239,68,68,0.15); color: var(--red); }
.ci-p2 { background: rgba(245,158,11,0.15); color: var(--gold); }
.ci-p3 { background: rgba(34,197,94,0.15);  color: var(--green); }

/* Checklist progress bar */
.checklist-progress { display: flex; flex-direction: column; gap: 0.35rem; }
.cp-bar-wrap { width: 100%; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.cp-bar { height: 100%; background: var(--green); border-radius: 3px; transition: width 0.4s; }
.cp-label { font-size: 0.75rem; color: var(--text-dim); text-align: right; }

/* ═══════════════════════════════════════════════════════════════
   SCENARIO TABLE (legacy)
═══════════════════════════════════════════════════════════════ */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table th { background: var(--input-bg); color: var(--text-dim); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; padding: 0.6rem 0.8rem; text-align: left; border-bottom: 1px solid var(--border); }
.data-table td { padding: 0.55rem 0.8rem; border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--text-main); }
.data-table tr.highlight-row td { background: rgba(124,58,237,0.08); color: var(--accent); font-weight: 700; }

/* ═══════════════════════════════════════════════════════════════
   FAQ
═══════════════════════════════════════════════════════════════ */
.faq-section { margin-top: 3rem; max-width: 860px; }
.faq-title { font-size: 1.3rem; font-weight: 700; margin-bottom: 1rem; }
.faq-list { display: flex; flex-direction: column; gap: 0.5rem; }
.faq-item { background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.faq-item summary { padding: 0.9rem 1.1rem; cursor: pointer; font-weight: 600; font-size: 0.92rem; list-style: none; display: flex; justify-content: space-between; align-items: center; color: var(--text-main); }
.faq-item summary::after { content: '+'; font-size: 1.1rem; color: var(--accent); }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding: 0 1.1rem 1rem; font-size: 0.88rem; color: var(--text-dim); line-height: 1.65; }

/* ═══════════════════════════════════════════════════════════════
   EDUCATIONAL SECTIONS
═══════════════════════════════════════════════════════════════ */
.how-section { margin-top: 3rem; max-width: 1000px; }
.how-heading { font-size: 1.2rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-main); }
.how-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: 1rem; }
.how-card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 1.1rem; }
.how-num { width: 28px; height: 28px; background: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; font-weight: 800; color: #fff; margin-bottom: 0.55rem; }
.how-title { font-size: 0.92rem; font-weight: 700; color: var(--text-main); margin-bottom: 0.35rem; }
.how-desc  { font-size: 0.8rem; color: var(--text-dim); line-height: 1.5; }

.formula-pills2 { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 2rem 0; }
.fp2 { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 0.55rem 0.9rem; display: flex; align-items: center; gap: 0.6rem; }
.fp2-label { font-size: 0.75rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap; }
.fp2-eq    { font-size: 0.78rem; color: var(--text-dim); }

.gloss-section2 { margin: 2rem 0; max-width: 1000px; }
.gloss-section2 h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-main); }
.gloss-grid2 { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 0.75rem; }
.g-item2 { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 0.8rem 1rem; font-size: 0.83rem; color: var(--text-dim); line-height: 1.5; }
.g-item2 strong { color: var(--text-main); display: block; margin-bottom: 0.2rem; }

.ex-section2 { margin: 2rem 0; }
.ex-section2 h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-main); }
.ex-grid2 { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 1rem; }
.ex-card2 { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 1.1rem; }
.ex-badge2 { display: inline-block; background: rgba(124,58,237,0.12); border: 1px solid rgba(124,58,237,0.25); color: var(--accent); font-size: 0.75rem; font-weight: 700; padding: 0.2rem 0.6rem; border-radius: 20px; margin-bottom: 0.6rem; }
.ex-card2 p { font-size: 0.83rem; color: var(--text-dim); line-height: 1.55; }
.ex-card2 p strong { color: var(--text-main); }

.article-body2 { max-width: 860px; margin: 2rem 0; }
.article-body2 h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-main); }
.article-body2 p  { font-size: 0.88rem; color: var(--text-dim); line-height: 1.7; margin-bottom: 1rem; }

.faq-section-extra { max-width: 860px; margin: 2rem 0; }
.faq-section-extra h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-main); }

/* ═══════════════════════════════════════════════════════════════
   ACT ROW, RELATED, FOOTER
═══════════════════════════════════════════════════════════════ */
.act-row2 { display: flex; gap: 0.6rem; flex-wrap: wrap; margin: 2rem 0; }
.act-btn2 { padding: 0.55rem 1.1rem; background: var(--card); border: 1px solid var(--border); color: var(--text-dim); border-radius: 8px; font-family: inherit; font-size: 0.85rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.act-btn2:hover { border-color: var(--accent); color: var(--accent); }

.calc-related { margin: 2rem 0; }
.calc-related h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 1rem; color: var(--text-main); }
.rel-grid2 { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.rel-card2 { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 0.55rem 1rem; font-size: 0.85rem; color: var(--text-dim); text-decoration: none; transition: all 0.2s; }
.rel-card2:hover { border-color: var(--accent); color: var(--accent); }

.related-section { margin-top: 2rem; }
.related-grid { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.related-card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 0.55rem 1rem; font-size: 0.85rem; color: var(--text-dim); text-decoration: none; transition: all 0.2s; }
.related-card:hover { border-color: var(--accent); color: var(--accent); }

/* Footer */
.calc-page-footer { background: var(--card); border-top: 1px solid var(--border); padding: 2.5rem 1.5rem 1.5rem; margin-top: 3rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4,1fr); gap: 2rem; max-width: 1600px; margin: 0 auto 1.5rem; }
.footer-brand {}
.footer-logo-row { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.footer-logo { width: 28px; height: 28px; }
.footer-brand-name { font-size: 1rem; font-weight: 800; color: var(--cyan); letter-spacing: -0.3px; }
.footer-tagline { font-size: 0.8rem; color: var(--text-muted); }
.footer-links-col { display: flex; flex-direction: column; gap: 0.35rem; }
.footer-col-title { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 0.35rem; }
.footer-link { font-size: 0.82rem; color: var(--text-muted); text-decoration: none; transition: color 0.2s; }
.footer-link:hover { color: var(--text-main); }
.footer-bottom { text-align: center; padding-top: 1.25rem; border-top: 1px solid var(--border); font-size: 0.78rem; color: var(--text-muted); max-width: 1600px; margin: 0 auto; }

/* Breadcrumb */
.calc-breadcrumb { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 1.25rem; }
.calc-breadcrumb a { color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
.calc-breadcrumb a:hover { color: var(--text-main); }

/* Back to top */
.calc-back-to-top { position: fixed; bottom: 1.5rem; right: 1.5rem; width: 40px; height: 40px; background: var(--card); border: 1px solid var(--border); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 50; opacity: 0; pointer-events: none; transition: opacity 0.3s, transform 0.3s; color: var(--text-dim); }
.calc-back-to-top.visible { opacity: 1; pointer-events: auto; }
.calc-back-to-top svg { width: 18px; height: 18px; }
.calc-back-to-top:hover { border-color: var(--accent); color: var(--accent); }

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .stat-grid { grid-template-columns: repeat(2,1fr); }
  .prop-grid { grid-template-columns: minmax(0, 1fr);  overflow: hidden;}
  .footer-grid { grid-template-columns: minmax(0, 1fr);  overflow: hidden;}
  .scenario-cards-grid { grid-template-columns: minmax(0, 1fr);  overflow: hidden;}
  .strategy-grid { grid-template-columns: minmax(0, 1fr);  overflow: hidden;}
  .donut-wrap { height: 240px; }
}

/* ═══════════════════════════════════════════════════════════════
   LIGHT MODE — all 6 failure categories addressed
═══════════════════════════════════════════════════════════════ */

/* Cat 1: Override exact :root variable names */
[data-theme="light"] {
  --bg-dark:    #E8EDF5;
  --card:       #FFFFFF;
  --input-bg:   #F0F4F9;
  --text-main:  #0F172A;
  --text-dim:   #334155;
  --text-muted: #64748B;
  --border:     rgba(0,0,0,0.12);
  --cyan:       #0E7490;
  --purple:     #7C3AED;
  --accent:     #7c3aed;
  --green:      #15803D;
  --gold:       #A16207;
  --red:        #DC2626;
}

/* Cat 2: Hardcoded dark backgrounds */


[data-theme="light"] .nav-dropdown-trigger { color: #334155; }
[data-theme="light"] .nav-dropdown-trigger:hover { color: #0F172A; background: rgba(0,0,0,0.05); }
[data-theme="light"] .nav-dropdown-menu { background: #fff; border-color: rgba(0,0,0,0.12); box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
[data-theme="light"] .nav-dropdown-menu a { color: #334155; }
[data-theme="light"] .nav-dropdown-menu a:hover { color: #0F172A; background: rgba(0,0,0,0.05); }


/* Cards — white with real shadow to pop off the blue-gray page */
[data-theme="light"] .card { background: #fff; border-color: rgba(0,0,0,0.1); box-shadow: 0 2px 12px rgba(0,0,0,0.09); }
[data-theme="light"] .card-title { color: #0F172A; }

/* Inputs — use page-bg tint so they're clearly sunken inside the white card */
[data-theme="light"] .input-field { background: #F0F4F9; border: 1px solid rgba(0,0,0,0.15); color: #0F172A; }
[data-theme="light"] .input-field:focus { border-color: var(--cyan); background: #fff; }
[data-theme="light"] select.input-field option { background: #fff; color: #0F172A; }
[data-theme="light"] .input-with-prefix { background: #F0F4F9; border-color: rgba(0,0,0,0.15); }
[data-theme="light"] .prefix { color: #475569; border-right-color: rgba(0,0,0,0.12); background: #E4EAF3; }

/* Stat cells — use the page-bg color so they're clearly tinted inside white card */
[data-theme="light"] .stat-cell { background: #EDF2F9; border: 1px solid rgba(0,0,0,0.1); border-radius: 8px; }

/* Chip buttons — tinted so they're clearly clickable */
[data-theme="light"] .chip-btn { background: #F0F4F9; border-color: rgba(0,0,0,0.15); color: #334155; }
[data-theme="light"] .prop-check { background: #F0F4F9; border-color: rgba(0,0,0,0.15); color: #334155; }
[data-theme="light"] .prop-check:has(input:checked) { background: rgba(124,58,237,0.07); border-color: var(--accent); color: #0F172A; }
[data-theme="light"] .btn-action { background: #F0F4F9; border-color: rgba(0,0,0,0.15); color: #334155; }
[data-theme="light"] .btn-action:hover { background: #fff; border-color: var(--accent); color: var(--accent); }

/* Scenario & strategy cards — tinted backgrounds so they differ from white result card */
[data-theme="light"] .scenario-card { background: #F8FAFD; border-color: rgba(0,0,0,0.12); box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
[data-theme="light"] .scenario-card:hover { border-color: rgba(0,0,0,0.22); background: #fff; }
[data-theme="light"] .strategy-card { background: #F8FAFD; border-color: rgba(0,0,0,0.12); box-shadow: 0 1px 4px rgba(0,0,0,0.06); }

/* Checklist items */
[data-theme="light"] .check-item { background: #F8FAFD; border-color: rgba(0,0,0,0.12); color: #0F172A; }
[data-theme="light"] .check-item.done { background: rgba(21,128,61,0.07); border-color: #86EFAC; }
[data-theme="light"] .ci-checkbox { background: #fff; border-color: rgba(0,0,0,0.2); }
[data-theme="light"] .cp-bar-wrap { background: rgba(0,0,0,0.12); }

/* Educational section cards — white with visible borders + shadow */
[data-theme="light"] .how-card  { background: #fff; border-color: rgba(0,0,0,0.12); box-shadow: 0 1px 6px rgba(0,0,0,0.07); }
[data-theme="light"] .faq-item  { background: #fff; border-color: rgba(0,0,0,0.12); box-shadow: 0 1px 4px rgba(0,0,0,0.05); }
[data-theme="light"] .fp2       { background: #F0F4F9; border-color: rgba(0,0,0,0.12); }
[data-theme="light"] .g-item2   { background: #fff; border-color: rgba(0,0,0,0.12); box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
[data-theme="light"] .ex-card2  { background: #fff; border-color: rgba(0,0,0,0.12); box-shadow: 0 1px 6px rgba(0,0,0,0.07); }
[data-theme="light"] .act-btn2  { background: #F0F4F9; border-color: rgba(0,0,0,0.15); color: #334155; }
[data-theme="light"] .act-btn2:hover { background: #fff; border-color: var(--accent); color: var(--accent); }
[data-theme="light"] .rel-card2 { background: #F0F4F9; border-color: rgba(0,0,0,0.15); color: #334155; }
[data-theme="light"] .rel-card2:hover { background: #fff; color: var(--accent); border-color: var(--accent); }
[data-theme="light"] .related-card { background: #F0F4F9; border-color: rgba(0,0,0,0.15); color: #334155; }

/* Cat 3: Text color fixes */
[data-theme="light"] .stat-val { color: #0F172A; }
[data-theme="light"] .stat-lbl { color: #64748B; }
[data-theme="light"] .how-num { color: #fff; }
[data-theme="light"] .sc-type { color: #0F172A; }
[data-theme="light"] .sc-label { color: #475569; }
[data-theme="light"] .sc-bl span:last-child { color: #0F172A; }
[data-theme="light"] .strategy-title { color: #0F172A; }
[data-theme="light"] .hero-sub { color: #475569; }
[data-theme="light"] .section-label { color: #475569; }

/* Cat 4: Hero result — more visible tint */
[data-theme="light"] .hero-result { background: #F5F3FF; border-color: rgba(124,58,237,0.25); }
[data-theme="light"] .data-table td { border-bottom-color: rgba(0,0,0,0.07); color: #334155; }
[data-theme="light"] .data-table tr:hover td { background: #F0F4F9; }

/* Cat 5: Neon accent overrides */
[data-theme="light"] .alert-info  { background: #EFF9FB; border-color: rgba(14,116,144,0.3);  color: #0E7490; }
[data-theme="light"] .alert-good  { background: #F0FDF4; border-color: rgba(21,128,61,0.3);   color: #15803D; }
[data-theme="light"] .alert-warn  { background: #FFFBEB; border-color: rgba(161,98,7,0.3);    color: #A16207; }
[data-theme="light"] .alert-danger{ background: #FFF1F2; border-color: rgba(220,38,38,0.3);   color: #DC2626; }
[data-theme="light"] .formula-pill { background: rgba(124,58,237,0.07); border-color: rgba(124,58,237,0.2); color: #7c3aed; }
[data-theme="light"] .input-card  { border-left-color: #0E7490; }
[data-theme="light"] .result-card { border-left-color: #7C3AED; }
[data-theme="light"] .matrix-vlow  { background: rgba(21,128,61,0.15)  !important; color: #15803D  !important; }
[data-theme="light"] .matrix-low   { background: rgba(21,128,61,0.09)  !important; color: #166534  !important; }
[data-theme="light"] .matrix-med   { background: rgba(161,98,7,0.13)   !important; color: #A16207  !important; }
[data-theme="light"] .matrix-high  { background: rgba(194,65,12,0.13)  !important; color: #C2410C  !important; }
[data-theme="light"] .matrix-vhigh { background: rgba(220,38,38,0.13)  !important; color: #DC2626  !important; }
[data-theme="light"] .matrix-table th { background: #EDF2F9; color: #475569; border-color: rgba(0,0,0,0.12); }
[data-theme="light"] .matrix-table td { border-color: rgba(0,0,0,0.08); }

/* Cat 6: Active/selected states */
[data-theme="light"] .tab-btn { background: #F0F4F9; border-color: rgba(0,0,0,0.12); color: #475569; }
[data-theme="light"] .tab-btn:hover { color: #0F172A; border-color: var(--accent); background: #fff; }
[data-theme="light"] .tab-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
[data-theme="light"] .chip-btn:hover  { background: #fff; border-color: var(--accent); color: var(--accent); }
[data-theme="light"] .chip-btn.active { background: rgba(124,58,237,0.08); border-color: var(--accent); color: var(--accent); font-weight: 600; }
[data-theme="light"] .btn-calculate { background: var(--accent); color: #fff; }
[data-theme="light"] .ci-p1 { background: rgba(220,38,38,0.12); color: #DC2626; }
[data-theme="light"] .ci-p2 { background: rgba(161,98,7,0.12);  color: #A16207; }
[data-theme="light"] .ci-p3 { background: rgba(21,128,61,0.12); color: #15803D; }
[data-theme="light"] .strategy-card { border-top-color: #15803D; }
[data-theme="light"] .strategy-savings { color: #15803D; }

/* Light footer */
[data-theme="light"] .calc-page-footer { background: #f8fafc; border-top-color: rgba(0,0,0,0.1); }
[data-theme="light"] .footer-bottom { border-top-color: rgba(0,0,0,0.08); color: #94a3b8; }
[data-theme="light"] .footer-link { color: #64748B; }
[data-theme="light"] .footer-link:hover { color: #0F172A; }
[data-theme="light"] .footer-brand-name { color: var(--cyan); }
[data-theme="light"] .footer-tagline { color: #94a3b8; }
[data-theme="light"] .footer-col-title { color: #475569; }

/* Light misc */
[data-theme="light"] .disclaimer-banner { background: rgba(161,98,7,0.07); border-color: rgba(161,98,7,0.2); color: #A16207; }
[data-theme="light"] .calc-breadcrumb { color: #64748B; }
[data-theme="light"] .calc-breadcrumb a { color: #64748B; }
[data-theme="light"] .calc-breadcrumb a:hover { color: #0F172A; }
[data-theme="light"] .page-subtitle { color: #475569; }
[data-theme="light"] .form-label { color: #475569; }
[data-theme="light"] .state-hint { color: #64748B; }
[data-theme="light"] .state-hint strong { color: #0F172A; }
[data-theme="light"] .fp2-label { color: var(--accent); }
[data-theme="light"] .fp2-eq { color: #475569; }
[data-theme="light"] .g-item2 { color: #475569; }
[data-theme="light"] .g-item2 strong { color: #0F172A; }
[data-theme="light"] .ex-card2 p { color: #475569; }
[data-theme="light"] .article-body2 p { color: #475569; }
[data-theme="light"] .faq-item summary { color: #0F172A; }
[data-theme="light"] .faq-item p { color: #475569; }
[data-theme="light"] .how-desc { color: #475569; }
[data-theme="light"] .how-title { color: #0F172A; }
[data-theme="light"] .sc-desc { color: #475569; }
[data-theme="light"] .sc-bl span { color: #64748B; }
[data-theme="light"] .sc-bl span:last-child { color: #0F172A; }
[data-theme="light"] .strategy-desc { color: #475569; }
[data-theme="light"] .action-bar { border-top-color: rgba(0,0,0,0.1); }
[data-theme="light"] .recovery-legend { color: #64748B; }
[data-theme="light"] input, [data-theme="light"] select { color-scheme: light; }
[data-theme="light"] input::placeholder { color: rgba(0,0,0,0.4); }
[data-theme="light"] .calc-back-to-top { background: #fff; border-color: rgba(0,0,0,0.12); color: #334155; }
[data-theme="light"] .calc-back-to-top:hover { color: var(--accent); border-color: var(--accent); }
[data-theme="light"]