/* ============================================
   footer.css — Footer Styles
   ============================================ */

.footer {
  background: var(--footer-bg);
  padding: var(--space-xl) 1.5rem var(--space-lg);
  margin-top: var(--space-2xl);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 2rem;
}

.footer-brand .brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.75rem;
}
.footer-brand .brand-logo .logo-icon {
  width: 28px; height: 28px;
  background: var(--accent);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
}
.footer-brand p { font-size: 0.85rem; color: #6b7280; line-height: 1.7; max-width: 260px; }

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ca3af;
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col ul li a {
  font-size: 0.875rem;
  color: #6b7280;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: 0.8rem; color: #4b5563; }
.footer-bottom-links { display: flex; gap: 1.25rem; }
.footer-bottom-links a { font-size: 0.8rem; color: #4b5563; transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--accent); }

@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ============================================
   calc-page.css — Calculator Page Layout
   ============================================ */

.calc-page {
  max-width: var(--max-w-calc);
  margin: 0 auto;
  padding: var(--space-xl) 1.5rem var(--space-2xl);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-bottom: 2rem;
  font-family: var(--font-display);
  font-weight: 600;
}
.breadcrumb a { color: var(--text-muted); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }

/* Calculator hero */
.calc-hero { margin-bottom: 2rem; }
.calc-hero-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.calc-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-lg);
  background: var(--accent-light);
  border: 1px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.calc-hero h1 { font-size: clamp(1.5rem, 4vw, 2.2rem); margin-bottom: 0.3rem; }
.calc-hero p  { font-size: 0.975rem; max-width: 620px; }

/* Main calculator card */
.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  margin-bottom: 2rem;
}

/* Two column layout */
.calc-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.calc-col { display: flex; flex-direction: column; gap: 1.1rem; }

/* Input group */
.input-group { display: flex; flex-direction: column; gap: 0.4rem; }

/* Slider with value display */
.slider-group { display: flex; flex-direction: column; gap: 0.4rem; }
.slider-header { display: flex; justify-content: space-between; align-items: center; }
.slider-value {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

/* Results panel */
.results-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.result-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.1rem;
  text-align: center;
}
.result-card .r-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  margin-bottom: 0.3rem;
}
.result-card .r-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.result-card.accent { background: var(--accent-light); border-color: var(--accent); }
.result-card.accent .r-value { color: var(--accent); }
.result-card.blue { background: var(--accent-2-light); border-color: var(--accent-2); }
.result-card.blue .r-value { color: var(--accent-2); }

/* Chart container */
.chart-container {
  position: relative;
  width: 100%;
}

/* Section divider inside card */
.calc-section-title {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
}

/* Toggle tabs */
.toggle-tabs { display: flex; gap: 0; border: 1.5px solid var(--border); border-radius: var(--radius-full); overflow: hidden; }
.tab-btn {
  flex: 1;
  padding: 0.5rem 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.82rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.tab-btn.active { background: var(--accent); color: white; }

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-top: 1.5rem;
  transition: color var(--transition);
}
.back-link:hover { color: var(--accent); }

/* Disclaimer */
.disclaimer {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--warning);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 1.5rem;
}

@media (max-width: 720px) {
  .calc-cols { grid-template-columns: 1fr; gap: 1.5rem; }
  .calc-card { padding: 1.25rem; }
  .results-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 420px) {
  .results-grid { grid-template-columns: 1fr; }
}