/*
 * Golden Template — Restoration
 * css/styles.css
 * Slice 1: CSS foundation — :root, reset, layout, sections, buttons, utilities.
 */

/* ==========================================================================
   CSS Custom Properties (ARCHITECTURE.md §6)
   ========================================================================== */
:root {
  /* Colors */
  --brand-blue: #0D47A1;
  --brand-blue-dark: #0A1628;
  --brand-blue-light: #1565C0;
  --brand-orange: #EF6C00;
  --brand-red: #B71C1C;
  --brand-white: #FFFFFF;
  --brand-gray: #F5F5F5;
  --brand-charcoal: #1B1B1B;
  --brand-text: #333333;
  --brand-border: #E0E0E0;

  /* Typography */
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Roboto', sans-serif;
}

/* ==========================================================================
   Reset / Base
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  color: var(--brand-text);
  background-color: var(--brand-white);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Layout (ARCHITECTURE.md §5)
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 480px) {
  .container {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

@media (min-width: 768px) {
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 480px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--brand-charcoal);
  margin-bottom: 1.5rem;
}

.section-navy .section-title {
  color: var(--brand-white);
}

.section-navy-cta-text {
  margin-bottom: 1.25rem;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.max-w-lg {
  max-width: 32rem;
}

.max-w-2xl {
  max-width: 42rem;
}

.max-w-3xl {
  max-width: 48rem;
}

/* ==========================================================================
   Section & Banner (ARCHITECTURE.md §5)
   ========================================================================== */
.section {
  padding-top: 2rem;
  padding-bottom: 2rem;
  background-color: var(--brand-white);
}

@media (min-width: 768px) {
  .section {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}

.section-gray {
  padding-top: 2rem;
  padding-bottom: 2rem;
  background-color: var(--brand-gray);
}

@media (min-width: 768px) {
  .section-gray {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}

.section-blue {
  padding-top: 2rem;
  padding-bottom: 2rem;
  background-color: var(--brand-blue);
  color: var(--brand-white);
}

@media (min-width: 768px) {
  .section-blue {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}

.section-navy {
  padding-top: 2rem;
  padding-bottom: 2rem;
  background-color: var(--brand-blue-dark);
  color: var(--brand-white);
}

@media (min-width: 768px) {
  .section-navy {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}

.section-banner {
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

@media (min-width: 768px) {
  .section-banner {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
  }
}

.section-banner.banner-blue {
  background-color: var(--brand-blue);
  color: var(--brand-white);
}

.section-banner.banner-navy {
  background-color: var(--brand-blue-dark);
  color: var(--brand-white);
}

.section-banner.banner-red {
  background-color: var(--brand-red);
  color: var(--brand-white);
}

/* ==========================================================================
   Hero (ARCHITECTURE.md §5)
   ========================================================================== */
.hero {
  position: relative;
  padding-top: 2rem;
  padding-bottom: 2rem;
  background-color: var(--brand-gray);
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
  }
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-orange);
  margin-bottom: 0.75rem;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.75rem;
  line-height: 1.2;
  color: var(--brand-charcoal);
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .hero__title {
    font-size: 2.25rem;
  }
}

.hero__text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--brand-text);
  margin-bottom: 1.5rem;
  max-width: 36rem;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__buttons .btn {
  padding: 0.75rem 1.5rem;
}

.hero__image {
  position: relative;
  margin-top: 1.5rem;
  border-radius: 0.25rem;
  overflow: hidden;
}

.hero__image img {
  width: 100%;
  height: auto;
  display: block;
}

@media (min-width: 1024px) {
  .hero__image {
    margin-top: 0;
  }
}

/* ==========================================================================
   Trust Bar (ARCHITECTURE.md §5)
   ========================================================================== */
.trust-bar {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  background-color: var(--brand-white);
  border-bottom: 1px solid var(--brand-border);
}

.trust-bar__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--brand-charcoal);
  text-align: center;
  margin-bottom: 1rem;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.trust-badge__icon {
  width: 1.5rem;
  height: 1.5rem;
  flex-shrink: 0;
  background-color: var(--brand-blue);
  border-radius: 50%;
}

.trust-badge__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-text);
}

@media (min-width: 768px) {
  .trust-badges {
    gap: 1.5rem 2rem;
  }

  .trust-badge__label {
    font-size: 0.9375rem;
  }
}

/* ==========================================================================
   Process Cards (ARCHITECTURE.md §5)
   ========================================================================== */
.process-card {
  background-color: var(--brand-white);
  border-radius: 0.25rem;
  padding: 1.5rem;
  border: 1px solid var(--brand-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.process-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  color: var(--brand-white);
  background-color: var(--brand-blue);
  border-radius: 50%;
  margin-bottom: 0.75rem;
}

.process-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--brand-charcoal);
  margin-bottom: 0.5rem;
}

.process-card__text {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--brand-text);
}

/* ==========================================================================
   Educational (ARCHITECTURE.md §5)
   ========================================================================== */
.edu-content {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--brand-text);
}

.edu-content h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--brand-charcoal);
  margin-bottom: 1rem;
}

.edu-content h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--brand-charcoal);
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.edu-content p {
  margin-bottom: 1rem;
}

.edu-list {
  list-style: none;
  margin: 0 0 1rem 0;
  padding: 0;
}

.edu-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

.edu-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--brand-blue);
  border-radius: 50%;
}

.edu-list--orange li::before {
  background-color: var(--brand-orange);
}

/* ==========================================================================
   FAQ (ARCHITECTURE.md §5)
   ========================================================================== */
.faq-list {
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  border-bottom: 1px solid var(--brand-border);
}

.faq-item summary {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--brand-charcoal);
  padding: 1rem 0;
  cursor: pointer;
  list-style: none;
}

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

.faq-item summary::before {
  content: '+ ';
  color: var(--brand-orange);
  margin-right: 0.25rem;
}

.faq-item[open] summary::before {
  content: '− ';
}

.faq-answer {
  padding: 0 0 1rem 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--brand-text);
}

/* ==========================================================================
   Testimonial Carousel (ARCHITECTURE.md §5 — Testimonial & Review Classes)
   ========================================================================== */
#testimonial-carousel {
  position: relative;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  padding: 1.5rem 0;
}

.testimonial-card {
  background-color: var(--brand-white);
  border-radius: 0.25rem;
  padding: 1.5rem 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--brand-border);
  transition: opacity 0.25s ease;
}

.testimonial-stars {
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: #d4a017;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--brand-text);
  font-style: italic;
  margin-bottom: 1rem;
}

.testimonial-author {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--brand-charcoal);
  opacity: 0.9;
}

.testimonial-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.testimonial-nav .btn {
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.testimonial-dot {
  width: 0.5rem;
  height: 0.5rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background-color: var(--brand-border);
  cursor: pointer;
  transition: background-color 0.2s, transform 0.2s;
}

.testimonial-dot:hover {
  background-color: var(--brand-blue-light);
}

.testimonial-dot.active {
  background-color: var(--brand-orange);
  transform: scale(1.2);
}

@media (min-width: 768px) {
  .testimonial-card {
    padding: 2rem 2.25rem;
  }

  .testimonial-text {
    font-size: 1.0625rem;
  }
}

/* ==========================================================================
   Review Cards — Reviews Page (ARCHITECTURE.md §5)
   ========================================================================== */
.review-card {
  background-color: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.review-card__stars {
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: #d4a017;
  margin-bottom: 0.75rem;
  line-height: 1;
}

.review-card__text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--brand-text);
  margin-bottom: 1rem;
}

.review-card__author {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--brand-charcoal);
}

/* ==========================================================================
   Buttons (ARCHITECTURE.md §5)
   ========================================================================== */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: 0.25rem;
  padding: 0.625rem 1.25rem;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.btn-orange {
  background-color: var(--brand-orange);
  color: var(--brand-white);
  border-color: var(--brand-orange);
}

.btn-orange:hover {
  background-color: #d45f00;
  border-color: #d45f00;
  color: var(--brand-white);
}

.btn-orange-outline {
  background-color: transparent;
  color: var(--brand-orange);
  border-color: var(--brand-orange);
}

.btn-orange-outline:hover {
  background-color: var(--brand-orange);
  color: var(--brand-white);
}

.btn-red {
  background-color: var(--brand-red);
  color: var(--brand-white);
  border-color: var(--brand-red);
}

.btn-red:hover {
  background-color: #8b1515;
  border-color: #8b1515;
  color: var(--brand-white);
}

.btn-blue {
  background-color: var(--brand-blue);
  color: var(--brand-white);
  border-color: var(--brand-blue);
}

.btn-blue:hover {
  background-color: var(--brand-blue-light);
  border-color: var(--brand-blue-light);
  color: var(--brand-white);
}

.btn-white {
  background-color: var(--brand-white);
  color: var(--brand-blue);
  border-color: var(--brand-white);
}

.btn-white:hover {
  background-color: var(--brand-gray);
  border-color: var(--brand-gray);
  color: var(--brand-blue);
}

/* ==========================================================================
   Form & Contact (ARCHITECTURE.md §5 — Form & Button Classes)
   ========================================================================== */
.contact-form {
  padding: 1.5rem 0;
  max-width: 36rem;
}

.contact-form--dark {
  background-color: var(--brand-blue-dark);
  color: var(--brand-white);
  padding: 1.5rem;
  border-radius: 0.25rem;
}

.contact-form--dark .contact-form__title,
.contact-form--dark .contact-form__subtitle {
  color: var(--brand-white);
}

.contact-form--dark .form-input,
.contact-form--dark .form-select,
.contact-form--dark .form-textarea {
  border-color: rgba(255, 255, 255, 0.3);
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--brand-white);
}

.contact-form--dark .form-input::placeholder,
.contact-form--dark .form-textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.contact-form--light {
  background-color: var(--brand-white);
  border: 1px solid var(--brand-border);
  padding: 1.5rem;
  border-radius: 0.25rem;
}

.contact-form__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--brand-charcoal);
  margin-bottom: 0.5rem;
}

.contact-form__subtitle {
  font-size: 0.9375rem;
  color: var(--brand-text);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.form-row {
  margin-bottom: 1rem;
}

.form-row--2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 480px) {
  .form-row--2 {
    grid-template-columns: 1fr;
  }
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.625rem 0.75rem;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--brand-text);
  background-color: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 3px rgba(13, 71, 161, 0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  display: block;
  width: 100%;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  border: 2px solid var(--brand-orange);
  border-radius: 0.25rem;
  background-color: var(--brand-orange);
  color: var(--brand-white);
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s;
}

.form-submit:hover {
  background-color: #d45f00;
  border-color: #d45f00;
}

.form-disclaimer {
  font-size: 0.8125rem;
  color: var(--brand-text);
  margin-top: 1rem;
  line-height: 1.5;
  opacity: 0.9;
}

.contact-form--dark .form-disclaimer {
  color: rgba(255, 255, 255, 0.85);
}

/* Contact page: two-column layout (form | contact info + map) */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 1024px) {
  .contact-layout {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card {
  background-color: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.card__icon {
  display: block;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.75rem;
  background-color: var(--brand-blue-light);
  border-radius: 0.25rem;
}

.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-charcoal);
  margin-bottom: 0.5rem;
}

.card__text {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--brand-text);
}

.card__text a {
  color: var(--brand-blue);
  text-decoration: none;
}

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

/* Service cards (homepage services grid). §5 CSS Class Dictionary. */
.service-card {
  background-color: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.service-card__image {
  display: block;
  line-height: 0;
}

.service-card__image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.service-card__body {
  padding: 1.25rem;
}

.service-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: var(--brand-charcoal);
}

.service-card__title a {
  color: inherit;
  text-decoration: none;
}

.service-card__title a:hover {
  color: var(--brand-blue);
}

.service-card__text {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--brand-text);
  margin-bottom: 1rem;
}

.map-embed {
  width: 100%;
  min-height: 280px;
  height: 400px;
  margin-top: 1.5rem;
  border-radius: 0.25rem;
  overflow: hidden;
  border: 1px solid var(--brand-border);
}

.map-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 280px;
  border: 0;
}

/* ==========================================================================
   Utilities (ARCHITECTURE.md §5)
   ========================================================================== */
.highlight {
  color: var(--brand-orange);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none;
}

/* ==========================================================================
   Navigation (ARCHITECTURE.md §5)
   ========================================================================== */
.top-bar {
  background-color: var(--brand-blue-dark);
  color: var(--brand-white);
  font-size: 0.875rem;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.top-bar .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.top-bar__text {
  font-family: var(--font-body);
}

.top-bar__phone {
  color: var(--brand-white);
  font-weight: 600;
  text-decoration: none;
}

.top-bar__phone:hover {
  text-decoration: underline;
}

.main-nav {
  background-color: var(--brand-white);
  border-bottom: 1px solid var(--brand-border);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.main-nav .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--brand-blue);
  text-decoration: none;
}

.nav-logo:hover {
  color: var(--brand-blue-light);
}

.nav-logo__icon {
  white-space: nowrap;
}

.nav-links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
  align-items: center;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.25rem;
  }
}

.nav-links a {
  color: var(--brand-text);
  text-decoration: none;
  font-weight: 500;
  padding: 0.25rem 0;
}

.nav-links a:hover {
  color: var(--brand-blue);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown__menu:focus-within {
  visibility: visible;
  opacity: 1;
}

.nav-dropdown__menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 12rem;
  margin: 0;
  padding: 0.5rem 0;
  list-style: none;
  background-color: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  visibility: hidden;
  opacity: 0;
  transition: visibility 0.2s, opacity 0.2s;
  z-index: 10;
}

.nav-dropdown__menu a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--brand-text);
  text-decoration: none;
}

.nav-dropdown__menu a:hover {
  background-color: var(--brand-gray);
  color: var(--brand-blue);
}

.nav-cta {
  display: none;
  text-decoration: none;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .nav-cta {
    display: inline-block;
  }
}

.nav-hamburger {
  display: block;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--brand-border);
  background-color: var(--brand-white);
  border-radius: 0.25rem;
  cursor: pointer;
  position: relative;
}

.nav-hamburger::before {
  content: '';
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  right: 0.5rem;
  height: 2px;
  background-color: var(--brand-charcoal);
  box-shadow: 0 6px 0 var(--brand-charcoal), 0 12px 0 var(--brand-charcoal);
}

@media (min-width: 768px) {
  .nav-hamburger {
    display: none;
  }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.5rem;
  background-color: var(--brand-gray);
  border-bottom: 1px solid var(--brand-border);
}

.mobile-menu a {
  color: var(--brand-blue);
  text-decoration: none;
  font-weight: 500;
}

.mobile-menu a:hover {
  text-decoration: underline;
}

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

.mobile-menu__cta {
  margin-top: 0.5rem;
  text-align: center;
  text-decoration: none;
}

/* ==========================================================================
   Footer (ARCHITECTURE.md §5)
   ========================================================================== */
.footer-cta {
  margin: 0;
}

.footer-cta p {
  margin-bottom: 1rem;
}

.footer {
  margin: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem 2rem;
}

.footer-grid > div {
  font-size: 0.9375rem;
  line-height: 1.6;
}

.footer-grid a {
  color: var(--brand-white);
  text-decoration: none;
}

.footer-grid a:hover {
  text-decoration: underline;
}

@media (min-width: 480px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-cert {
  margin: 0;
  font-size: 0.9375rem;
}

.footer-cert__label {
  font-weight: 600;
}

.footer-cert__value {
  font-weight: 400;
}

.footer-bottom {
  padding-top: 1rem;
  padding-bottom: 1rem;
  background-color: var(--brand-charcoal);
  color: var(--brand-white);
  font-size: 0.875rem;
  text-align: center;
}

/* ==========================================================================
   Calculator (ARCHITECTURE.md §5 — Calculator Classes)
   ========================================================================== */
.calc {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.calc__heading {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--brand-charcoal);
}

.calc__subheading {
  font-size: 1rem;
  color: var(--brand-text);
  margin-bottom: 1.5rem;
  max-width: 42rem;
}

.calc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .calc-layout {
    grid-template-columns: 1fr 320px;
    align-items: start;
  }
}

.calc-form {
  min-width: 0;
}

.calc-summary {
  background-color: var(--brand-gray);
  border: 1px solid var(--brand-border);
  border-radius: 0.5rem;
  padding: 1.25rem;
}

.calc-summary--sticky {
  position: sticky;
  top: 1rem;
}

@media (max-width: 1023px) {
  .calc-summary--sticky {
    position: relative;
    top: 0;
  }
}

.calc-step {
  margin-bottom: 2rem;
}

.calc-step__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--brand-charcoal);
}

.calc-step__subtitle {
  font-size: 0.9375rem;
  color: var(--brand-text);
  margin-bottom: 1rem;
}

.calc-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.calc-option {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0.5rem 0.75rem;
  font-size: 0.9375rem;
  font-family: var(--font-body);
  color: var(--brand-text);
  background-color: var(--brand-white);
  border: 2px solid var(--brand-border);
  border-radius: 0.375rem;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, background-color 0.2s;
}

.calc-option:hover {
  border-color: var(--brand-blue-light);
  background-color: var(--brand-gray);
}

.calc-option--selected {
  border-color: var(--brand-blue);
  background-color: rgba(13, 71, 161, 0.08);
  color: var(--brand-blue);
}

.calc-option__label {
  font-weight: 600;
}

.calc-option__note {
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--brand-text);
  margin-top: 0.125rem;
}

.calc-field {
  margin-bottom: 1rem;
}

.calc-field__label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--brand-charcoal);
}

.calc-slider-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.calc-slider {
  flex: 1;
  min-width: 120px;
  height: 0.5rem;
  accent-color: var(--brand-blue);
}

.calc-input-number {
  width: 6rem;
  padding: 0.5rem 0.5rem;
  font-size: 1rem;
  font-family: var(--font-body);
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
}

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

@media (min-width: 480px) {
  .calc-services {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .calc-services {
    grid-template-columns: repeat(2, 1fr);
  }
}

.calc-service-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem;
  font-family: var(--font-body);
  text-align: left;
  background-color: var(--brand-white);
  border: 2px solid var(--brand-border);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
}

.calc-service-card:hover {
  border-color: var(--brand-blue-light);
  background-color: var(--brand-gray);
}

.calc-service-card--selected {
  border-color: var(--brand-blue);
  background-color: rgba(13, 71, 161, 0.08);
}

.calc-service-card__icon {
  display: block;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.5rem;
  background-color: var(--brand-blue-light);
  border-radius: 0.25rem;
}

.calc-service-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: var(--brand-charcoal);
}

.calc-service-card__desc {
  font-size: 0.875rem;
  color: var(--brand-text);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.calc-service-card__duration {
  font-size: 0.8125rem;
  color: var(--brand-blue);
  margin-bottom: 0.5rem;
}

.calc-service-card__includes-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--brand-text);
}

.calc-service-card__includes {
  margin-bottom: 0.125rem;
}

.calc-service-card__includes::before {
  content: "\2713 ";
  color: var(--brand-blue);
  margin-right: 0.25rem;
}

.calc-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--brand-border);
}

.calc-total__label {
  font-weight: 600;
  font-size: 1rem;
  color: var(--brand-charcoal);
}

.calc-total__value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand-blue);
}

.calc-line-items {
  margin-bottom: 1rem;
}

.calc-line-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--brand-border);
}

.calc-line-item:last-child {
  border-bottom: none;
}

.calc-line-item__name {
  color: var(--brand-text);
}

.calc-line-item__amount {
  font-weight: 600;
  color: var(--brand-charcoal);
}

.calc-disclaimer {
  font-size: 0.8125rem;
  color: var(--brand-text);
  margin-bottom: 1.5rem;
  padding: 0.75rem;
  background-color: var(--brand-gray);
  border-radius: 0.25rem;
}

.calc-lead-form {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--brand-border);
}

.calc-lead-form__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--brand-charcoal);
}

.calc-lead-form__row {
  margin-bottom: 0.75rem;
}

.calc-lead-form__row label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
  color: var(--brand-charcoal);
}

.calc-lead-form .form-input {
  width: 100%;
  max-width: 20rem;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  font-family: var(--font-body);
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
}

.calc-lead-form__submit {
  margin-top: 0.5rem;
}

/* ==========================================================================
   Blog Listing (ARCHITECTURE.md §5)
   ========================================================================== */
.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.blog-filter-btn {
  font-family: var(--font-display);
  font-weight: 600;
  padding: 0.5rem 1rem;
  border: 2px solid var(--brand-border);
  background-color: var(--brand-white);
  color: var(--brand-text);
  border-radius: 0.25rem;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.blog-filter-btn:hover {
  border-color: var(--brand-blue);
  color: var(--brand-blue);
}

.blog-filter-btn.active {
  background-color: var(--brand-blue);
  border-color: var(--brand-blue);
  color: var(--brand-white);
}

.blog-card {
  background-color: var(--brand-white);
  border-radius: 0.25rem;
  overflow: hidden;
  border: 1px solid var(--brand-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
}

.blog-card__image {
  display: block;
  overflow: hidden;
}

.blog-card__image img {
  width: 100%;
  height: auto;
  aspect-ratio: 600 / 400;
  object-fit: cover;
}

.blog-card__body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card__category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-orange);
  margin-bottom: 0.5rem;
}

.blog-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.blog-card__title a {
  color: var(--brand-charcoal);
  text-decoration: none;
}

.blog-card__title a:hover {
  color: var(--brand-blue);
}

.blog-card__desc {
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--brand-text);
  margin-bottom: 0.75rem;
  flex: 1;
}

.blog-card__meta {
  font-size: 0.8125rem;
  color: var(--brand-text);
  margin-bottom: 0.5rem;
}

.blog-card__date {
  font-weight: 500;
}

.blog-card__readmore {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--brand-orange);
  text-decoration: none;
}

.blog-card__readmore:hover {
  text-decoration: underline;
}

/* Related articles block uses same .blog-card in a grid */
#related-articles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  #related-articles {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  #related-articles {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   Article Layout (ARCHITECTURE.md §5)
   ========================================================================== */
.article-hero {
  padding-top: 2rem;
  padding-bottom: 2rem;
  background-color: var(--brand-gray);
}

@media (min-width: 768px) {
  .article-hero {
    padding-top: 2.5rem;
    padding-bottom: 2.5rem;
  }
}

.article-hero__breadcrumb {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.article-hero__breadcrumb a {
  color: var(--brand-blue);
  text-decoration: none;
}

.article-hero__breadcrumb a:hover {
  text-decoration: underline;
}

.article-hero__category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-orange);
  margin-bottom: 0.5rem;
}

.article-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.75rem;
  line-height: 1.2;
  color: var(--brand-charcoal);
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  .article-hero__title {
    font-size: 2.25rem;
  }
}

.article-hero__meta {
  font-size: 0.9375rem;
  color: var(--brand-text);
}

.article-layout {
  display: block;
  padding-top: 2rem;
  padding-bottom: 2rem;
}

@media (min-width: 1024px) {
  .article-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 2rem;
    align-items: start;
  }
}

.article-content {
  min-width: 0;
}

.article-content img {
  width: 100%;
  height: auto;
  border-radius: 0.25rem;
  margin-bottom: 1.5rem;
}

.article-content h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--brand-charcoal);
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.article-content h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--brand-charcoal);
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

.article-content p {
  margin-bottom: 1rem;
  line-height: 1.6;
  color: var(--brand-text);
}

.article-content ul {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-sidebar {
  position: relative;
}

@media (min-width: 1024px) {
  .article-sidebar {
    position: sticky;
    top: 1rem;
  }
}

.sidebar-toc {
  list-style: none;
  margin: 0 0 1.5rem 0;
  padding: 0;
  border: 1px solid var(--brand-border);
  border-radius: 0.25rem;
  padding: 1rem;
  background-color: var(--brand-gray);
}

.sidebar-toc li {
  margin-bottom: 0.5rem;
}

.sidebar-toc a {
  font-size: 0.9375rem;
  color: var(--brand-blue);
  text-decoration: none;
}

.sidebar-toc a:hover {
  text-decoration: underline;
}

.sidebar-cta {
  padding: 1.25rem;
  background-color: var(--brand-blue);
  color: var(--brand-white);
  border-radius: 0.25rem;
  text-align: center;
}

.sidebar-cta .btn {
  margin-top: 0.5rem;
}