/* ==========================================================================
   Base CSS & Layout - Pest Control Aveley
   ========================================================================== */

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1.5rem);
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  max-width: 100vw;
  position: relative;
}

main {
  flex: 1 0 auto;
}

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

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-gold-dark);
  text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary-dark);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-top: 2rem; margin-bottom: 1rem; }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); margin-top: 1.5rem; }
h4 { font-size: 1.1rem; }

p {
  margin-bottom: 1.25rem;
  color: var(--color-text-main);
}

ul, ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.section--subtle {
  background-color: var(--color-bg-subtle);
}

.section--primary {
  background-color: var(--color-primary);
  color: #ffffff;
}
.section--primary h1,
.section--primary h2,
.section--primary h3,
.section--primary p {
  color: #ffffff;
}

.section-title-wrap {
  text-align: center;
  max-width: 780px;
  margin: 0 auto var(--space-2xl);
}

.section-badge {
  display: inline-block;
  padding: 0.3rem 0.85rem;
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  background-color: var(--color-accent-subtle);
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   Scoped Reveal Animations (Bug 10 Prevention)
   If JS fails or is disabled, content remains 100% visible by default.
   ========================================================================== */
.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.js .reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.js .reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.js .reveal-stagger.active > * {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Process Steps & Workflows (4 Blocks in One Row on Desktop)
   ========================================================================== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin: 2rem 0;
}

@media (max-width: 991px) {
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
}

.process-step {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 0.85rem;
}

.process-step h3 {
  margin-top: 0;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.process-step p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
  line-height: 1.45;
}

/* ==========================================================================
   Alert Callouts (Warning, Pro Tip, Info - Clean 1px border, no left border)
   ========================================================================== */
.warning-box, .tip-box, .info-box {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  margin: 1.75rem 0;
  border: 1px solid transparent;
}

.warning-box {
  background-color: var(--color-warning-bg);
  border-color: #fde68a;
  color: #78350f;
}
.warning-box h4 {
  color: #78350f;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tip-box {
  background-color: var(--color-success-bg);
  border-color: #bbf7d0;
  color: #14532d;
}
.tip-box h4 {
  color: #14532d;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.info-box {
  background-color: var(--color-info-bg);
  border-color: #bae6fd;
  color: #0c4a6e;
}
.info-box h4 {
  color: #0c4a6e;
  margin-bottom: 0.4rem;
}

/* ==========================================================================
   Tables (Problem-Cause-Fix, Comparisons, Decision Matrices)
   ========================================================================== */
.table-responsive {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 2rem 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.data-table th, .data-table td {
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background-color: #f1f5f9;
  color: var(--color-primary-dark);
  font-weight: 700;
  white-space: nowrap;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:nth-child(even) td {
  background-color: #fafbfc;
}

/* ==========================================================================
   FAQ Accordions
   ========================================================================== */
.faq-section {
  margin: 2.5rem 0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

details.faq-item {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  overflow: hidden;
}

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

details.faq-item summary {
  padding: 1.15rem 1.4rem;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-primary-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

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

details.faq-item summary::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1;
  color: var(--color-accent);
  transition: transform var(--transition-normal);
}

details.faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--color-accent-gold-dark);
}

.faq-content {
  padding: 0 1.4rem 1.25rem;
  border-top: 1px solid #f1f5f9;
  background-color: #fcfdfd;
}

.faq-content p {
  margin-top: 0.85rem;
  margin-bottom: 0.5rem;
  font-size: 0.975rem;
  color: var(--color-text-main);
  line-height: 1.65;
}

/* ==========================================================================
   Buttons & CTA Elements
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
}
.btn-primary:hover {
  background-color: var(--color-primary-light);
  color: #ffffff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background-color: var(--color-accent-gold);
  color: #ffffff;
}
.btn-accent:hover {
  background-color: var(--color-accent-gold-dark);
  color: #ffffff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border-color: #ffffff;
  color: #ffffff;
  background-color: transparent;
}
.btn-outline:hover {
  background-color: #ffffff;
  color: var(--color-primary-dark);
  text-decoration: none;
}

.btn-outline-dark {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: transparent;
}
.btn-outline-dark:hover {
  background-color: var(--color-primary);
  color: #ffffff;
  text-decoration: none;
}

.btn-emergency {
  background: linear-gradient(135deg, #b91c1c 0%, #dc2626 100%);
  color: #ffffff !important;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.35);
}
.btn-emergency:hover {
  background: linear-gradient(135deg, #991b1b 0%, #b91c1c 100%);
  transform: translateY(-1px);
}

/* Situation-Action-Outcome Box (Information Gain) */
.sao-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.75rem 0;
  box-shadow: var(--shadow-sm);
}

.sao-card__title {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sao-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}

.sao-item {
  background: var(--color-bg-subtle);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
}

.sao-item strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 0.25rem;
}

.sao-item p {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--color-text-main);
}