/* ==========================================================================
   EMI Calculator.loan — Component Styles
   Header, Navigation, Selectors, Hero, Cards, Metrics, FAQ, Footer, Cookie Banner
   ========================================================================== */

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.brand:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.brand-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.brand span {
  color: var(--color-accent);
  font-weight: 400;
}

/* Header Tools (Language, Currency & Desktop Nav) */
.header-tools {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.select-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 1.85rem 0.45rem 0.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 38px;
}

.select-wrap select:hover {
  border-color: var(--color-accent);
}

.select-wrap select:focus {
  border-color: var(--border-focus);
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.select-wrap::after {
  content: "▾";
  position: absolute;
  right: 0.65rem;
  pointer-events: none;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  font-size: 1.25rem;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-main);
  min-height: 40px;
  min-width: 40px;
  align-items: center;
  justify-content: center;
}

.menu-btn:hover {
  background-color: var(--bg-card-alt);
}

/* Desktop Navigation Links */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-left: 1.5rem;
}

.desktop-nav a {
  color: var(--text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.desktop-nav a:hover,
.desktop-nav a.active {
  color: var(--color-accent);
  text-decoration: none;
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem;
  box-shadow: var(--shadow-lg);
  flex-direction: column;
  gap: 0.75rem;
  z-index: 49;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-weight: 500;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mobile-nav a:hover {
  background-color: var(--bg-card-alt);
  color: var(--color-accent);
}

/* Hero Section */
.hero {
  padding: 2.25rem 0 1.5rem;
  background: linear-gradient(180deg, #eff6ff 0%, #f8fafc 100%);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Breadcrumbs & Jump TOC */
.crumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.crumb a {
  color: var(--color-accent);
  text-decoration: none;
}

.crumb a:hover {
  text-decoration: underline;
}

.crumb-sep {
  color: var(--text-subtle);
}

.toc {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.85rem;
}

.toc a {
  display: inline-flex;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.toc a:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

/* Cards & Layout */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card.section {
  padding: 1.75rem;
  margin-top: 1.75rem;
  margin-bottom: 1.75rem;
}

.section {
  padding: 2.5rem 0;
}

.section-heading {
  margin-bottom: 1.75rem;
}

.section-heading h2 {
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

/* Grid Systems */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 1.25rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* Tool Card (Calculator link card) */
.tool-card {
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
}

.tool-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.tool-card .icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  display: inline-block;
}

.tool-card strong {
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

.tool-card .muted {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  min-height: 46px;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--text-inverted);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--text-inverted);
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background-color: var(--bg-card);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--bg-card-alt);
  border-color: var(--text-subtle);
}

.btn-block {
  width: 100%;
}

/* Step / Stat Cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.stat-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background-color: var(--bg-card-alt);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.stat-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: var(--text-inverted);
  font-weight: 700;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.stat-text strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.stat-text span {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: var(--color-accent);
}

.faq-item summary { cursor: pointer;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-content {
  padding: 0 1.25rem 1.25rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Insight Box */
.insight-box {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-top: 1.25rem;
}

.insight-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.insight-text {
  font-size: 0.875rem;
  color: #166534;
  line-height: 1.5;
}

/* Footer */
footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 3.5rem 0 2rem;
  margin-top: auto;
  border-top: 1px solid #1e293b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand h3 {
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.875rem;
  line-height: 1.5;
}

.footer-col h4 {
  color: #f8fafc;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.875rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #38bdf8;
  text-decoration: none;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.8125rem;
  color: #64748b;
}

.footer-disclaimer {
  line-height: 1.6;
}

/* Cookie / Analytics Consent Banner */
.cookie-banner {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  max-width: 540px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-xl);
  z-index: 100;
  display: none;
  animation: slideUp 0.3s ease-out;
}

.cookie-banner.show {
  display: block;
}

.cookie-content {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.cookie-content p {
  font-size: 0.875rem;
  color: var(--text-main);
  margin: 0;
  line-height: 1.5;
}

.cookie-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.cookie-actions .btn {
  padding: 0.45rem 1rem;
  font-size: 0.875rem;
  min-height: 38px;
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Enhanced Accessibility & UX Focus States */
a:focus, button:focus, input:focus, select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
.input-wrap input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}