/* ================================
   SouthEastern Signal - components.css
   Buttons, heroes, cards, sections,
   cookie banner, forms, tags, etc.
=================================== */

/* -------- Buttons -------- */

/* M3 Button base — state layer via ::before overlay */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--md-sys-shape-corner-full);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  overflow: hidden;
  background: transparent;
  color: var(--color-text);
  transition: background 0.16s ease, color 0.16s ease,
    border-color 0.16s ease;
}

/* M3 state layer */
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: currentColor;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.btn:hover::before {
  opacity: 0.08;
}

.btn:active::before {
  opacity: 0.12;
}

/* M3 Filled Button (Primary) */
.btn-primary {
  background: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.btn-primary:hover {
  background: var(--md-sys-color-primary-hover);
  border-color: var(--md-sys-color-primary-hover);
}

/* M3 Tonal Button (Secondary) */
.btn-secondary {
  background: var(--md-sys-color-secondary-container);
  border-color: var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-on-secondary-container);
}

.btn-secondary:hover {
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.18);
}

/* M3 Outlined Button */
.btn-outline {
  background: transparent;
  border-color: var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-primary);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.28);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.78rem;
}

/* -------- Sections & Layout -------- */

.section {
  margin-bottom: var(--space-8);
  /* content-visibility improves INP by deferring off-screen rendering.
     contain-intrinsic-size prevents CLS while content is not rendered.
     Only apply to non-hero sections; hero must render immediately (LCP). */
}

/* Apply content-visibility only to sections that are not the first/hero */
.section:not(:first-child) {
  content-visibility: auto;
  contain-intrinsic-size: 0 400px;
}

.section-header {
  margin-bottom: var(--space-4);
}

/* M3 Label Medium — weight 500, tracking ~0.04em */
/* Shared with .hero-eyebrow (consolidated) */
.section-eyebrow {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  margin-bottom: 6px;
}

/* M3 Headline Small (24sp) */
.section-title {
  font-size: 1.6rem;
  font-weight: 400;
  margin-bottom: 6px;
}

.section-description {
  font-size: 0.98rem;
  color: var(--color-text-muted);
  max-width: 40rem;
}

/* -------- Hero Blocks -------- */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: var(--space-6);
  align-items: center;
  margin-bottom: var(--space-7);
}

.hero-content {
  max-width: 40rem;
}

/* M3 Label Medium — same as .section-eyebrow */
.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  margin-bottom: 6px;
}

.hero-subtitle {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 12px;
}

/* M3 Headline Large / Display Small */
.hero-title {
  font-size: clamp(2.1rem, 2.2rem + 0.6vw, 2.7rem);
  line-height: 1.15;
  font-weight: 400;
  margin-bottom: 14px;
}

.hero-lede {
  font-size: 0.98rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.hero-meta {
  font-size: 0.82rem;
  color: var(--color-text-soft);
}

/* Hero side panel / image wrapper — M3 tonal elevation */
.hero-media {
  border-radius: var(--md-sys-shape-corner-extra-large);
  background: color-mix(in srgb, var(--md-sys-color-primary) 5%, var(--md-sys-color-surface-container));
  border: 1px solid var(--md-sys-color-outline-variant);
  overflow: hidden;
  /* Reserve space to prevent CLS: matches 560x420 hero image dimensions */
  aspect-ratio: 4 / 3;
  min-height: 260px;
}

/* Ensure hero images fill their container without CLS */
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Benefit bar under hero */

.hero-benefits {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.benefit-card {
  background: var(--color-bg-subtle);
  border-radius: var(--md-sys-shape-corner-medium);
  padding: 10px 12px;
  border: 1px solid var(--md-sys-color-outline-variant);
}

/* M3 Title Small (14sp, weight 500) */
.benefit-title {
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--color-text);
}

.benefit-body {
  font-size: 0.78rem;
  color: var(--color-text-soft);
}

/* Hero tags / chips */

.hero-tags {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* M3 Chip — Small shape (8dp), not pill */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  font-size: 0.78rem;
  border-radius: var(--md-sys-shape-corner-small);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-soft);
  border: 1px solid var(--md-sys-color-outline-variant);
}

/* -------- Cards & Grids -------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

/* M3 Filled Card — surface tint elevation instead of drop shadow */
.card {
  background: color-mix(in srgb, var(--md-sys-color-primary) 5%, var(--md-sys-color-surface-container-high));
  border-radius: var(--md-sys-shape-corner-medium);
  padding: var(--space-4);
  border: 1px solid var(--md-sys-color-outline-variant);
}

/* M3 Title Medium (16sp, weight 500) */
.card-title {
  font-size: 0.98rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.card-body {
  font-size: 0.86rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Small stat / metric pill */

/* M3 Chip variant — Small shape (8dp) */
.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  padding: 5px 9px;
  border-radius: var(--md-sys-shape-corner-small);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-text-soft);
}

/* -------- Cookie Banner -------- */

.cookie-banner {
  position: fixed;
  z-index: 9999;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 16px 12px;
  background: rgba(5, 6, 8, 0.96);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  /* Hidden by default via HTML 'hidden' attribute; JS removes it to show */
  font-size: 0.82rem;
}

.cookie-banner__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.cookie-banner__text {
  margin: 0;
  color: var(--color-text-muted);
}

.cookie-banner__link {
  color: var(--color-text-soft);
  font-size: 0.75rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  margin-left: 4px;
}

/* -------- Forms -------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-label {
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

.form-input,
.form-textarea,
.form-select {
  background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-corner-extra-small);
  border: 1px solid var(--md-sys-color-outline-variant);
  padding: 9px 11px;
  color: var(--color-text);
  font-size: 0.88rem;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent-soft);
  box-shadow: 0 0 0 1px rgba(229, 57, 53, 0.4);
}

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

.form-help {
  font-size: 0.75rem;
  color: var(--color-text-soft);
}

.form-actions {
  margin-top: var(--space-4);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Simple status message placeholder */
.form-status {
  margin-top: 8px;
  font-size: 0.8rem;
}

.form-status--error {
  color: var(--color-accent);
  margin-bottom: 12px;
}

/* ses-forms.js message overrides (replaces inline styles) */
.ses-message {
  padding: 12px 16px;
  margin-top: var(--space-3);
  border-radius: var(--md-sys-shape-corner-small);
  font-size: 0.86rem;
  font-weight: 500;
}

.ses-message--success {
  background: rgba(76, 175, 80, 0.12);
  color: #a5d6a7;
  border: 1px solid rgba(76, 175, 80, 0.3);
}

.ses-message--error {
  background: rgba(229, 57, 53, 0.12);
  color: var(--color-accent-soft, #ef9a9a);
  border: 1px solid rgba(229, 57, 53, 0.3);
}

/* -------- Accordions (FAQ, process steps) -------- */

.accordion {
  border-radius: var(--md-sys-shape-corner-medium);
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--color-bg-subtle);
}

.accordion-item + .accordion-item {
  border-top: 1px solid var(--color-border-subtle);
}

.accordion-header {
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.accordion-title {
  font-size: 0.9rem;
  font-weight: 500;
}

/* M3 Expansion — chevron rotates 180° on open */
.accordion-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  color: var(--color-text-soft);
  transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1);
}

.accordion-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  padding: 0 14px 10px;
  font-size: 0.86rem;
  color: var(--color-text-muted);
  display: none;
}

.accordion-item.is-open .accordion-body {
  display: block;
}

/* -------- Tag Row / Meta pills (e.g. case studies) -------- */

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

/* M3 Chip variant — Small shape (8dp) */
.meta-pill {
  font-size: 0.78rem;
  padding: 5px 9px;
  border-radius: var(--md-sys-shape-corner-small);
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-soft);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

/* -------- Responsive Tweaks -------- */

/* <= 1024px */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-media {
    max-width: 480px;
    margin: 4px auto 0;
  }

  .hero-benefits {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* <= 640px */
@media (max-width: 640px) {
  .hero {
    gap: var(--space-4);
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-benefits {
    grid-template-columns: minmax(0, 1fr);
  }

  .card-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cookie-banner__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}