/* ==========================================================================
   components.css — Buttons, Cards, Nav, Footer, Stats, Forms, CTA
   ========================================================================== */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.btn--primary {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #fff;
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--secondary:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.btn--secondary-light {
  background-color: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.btn--secondary-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: var(--text-lg);
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--text-sm);
}

/* --- Site Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-right: var(--space-8);
  text-decoration: none;
  color: var(--color-primary);
}

.site-header__logo svg,
.site-header__logo img {
  height: 32px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav__link {
  padding: 0.5rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  text-decoration: none;
}
.site-nav__link:hover,
.site-nav__link--active {
  color: var(--color-primary);
  background-color: var(--color-bg-alt);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: var(--color-primary);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4);
    gap: var(--space-1);
    box-shadow: var(--shadow-md);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__link {
    padding: 0.75rem 1rem;
    font-size: var(--text-base);
  }

  .site-header__actions .btn {
    display: none;
  }

  .site-nav .nav-cta-mobile {
    display: inline-flex;
    margin-top: var(--space-2);
  }
}

@media (min-width: 769px) {
  .nav-cta-mobile {
    display: none !important;
  }
}

/* --- Hero --- */
.hero {
  padding: var(--space-24) 0 var(--space-20);
  background: linear-gradient(
    135deg,
    var(--color-bg-dark) 0%,
    var(--color-primary) 50%,
    var(--color-primary-dark) 100%
  );
  color: var(--color-text-light);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 153, 9, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-16);
  position: relative;
  z-index: 1;
}

.hero h1 {
  color: var(--color-text-light);
  margin-bottom: var(--space-6);
}

.hero__text {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-8);
  max-width: 540px;
  line-height: var(--leading-normal);
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Hero graphic – abstract data visualization */
.hero__graphic {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__graphic-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  opacity: 0.5;
}

.hero__graphic-bar {
  width: 18px;
  border-radius: 3px;
  background: var(--color-accent);
}

@media (max-width: 768px) {
  .hero {
    padding: var(--space-16) 0 var(--space-12);
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero__graphic {
    display: none;
  }
}

/* --- Hero Small (subpages) --- */
.hero--small {
  padding: var(--space-16) 0 var(--space-12);
}

.hero--small h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.hero--small .hero__text {
  font-size: var(--text-lg);
  max-width: 600px;
}

.hero--small .hero__inner {
  grid-template-columns: 1fr;
}

/* --- Cards --- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(18, 71, 52, 0.2);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-accent);
  font-size: var(--text-2xl);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.card__text {
  font-size: var(--text-base);
  color: var(--color-muted);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-4);
}

.card__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.card__link:hover {
  color: var(--color-accent-dark);
}
.card__link::after {
  content: "→";
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 960px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* Dataset card */
.dataset-card {
  display: flex;
  flex-direction: column;
}

.dataset-card .card__text {
  flex: 1;
}

/* --- Stat / Proof Bar --- */
.stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
  text-align: center;
  padding-block: var(--space-12);
}

.stat-bar__item {}

.stat-bar__number {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-bar__label {
  font-size: var(--text-sm);
  color: var(--color-muted);
  font-weight: var(--weight-medium);
}

@media (max-width: 768px) {
  .stat-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .stat-bar {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* --- CTA Band --- */
.cta-band {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 100%
  );
  color: var(--color-text-light);
  text-align: center;
  padding-block: var(--space-20);
}

.cta-band h2 {
  color: var(--color-text-light);
  margin-bottom: var(--space-4);
}

.cta-band p {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-8);
  max-width: 520px;
  margin-inline: auto;
}

.cta-band__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* --- Forms --- */
.form-field {
  margin-bottom: var(--space-5);
}

.form-field label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(18, 71, 52, 0.1);
}

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

.form-field .errorlist {
  list-style: none;
  padding: 0;
  margin-top: var(--space-1);
}

.form-field .errorlist li {
  font-size: var(--text-sm);
  color: #dc2626;
}

/* --- Feature List --- */
.feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.feature-list__item {
  display: flex;
  gap: var(--space-4);
}

.feature-list__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(57, 153, 9, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: var(--text-xl);
}

.feature-list__content h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.feature-list__content p {
  font-size: var(--text-base);
  color: var(--color-muted);
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .feature-list {
    grid-template-columns: 1fr;
  }
}

/* --- Key Fields / Tags --- */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-primary);
}

/* --- Site Footer --- */
.site-footer {
  background-color: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--space-16) var(--space-8);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.site-footer__brand {
  max-width: 320px;
}

.site-footer__brand img,
.site-footer__brand svg {
  height: 28px;
  width: auto;
  margin-bottom: var(--space-4);
}

.site-footer__brand p {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: rgba(255, 255, 255, 0.6);
}

.site-footer__heading {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__links a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}
.site-footer__links a:hover {
  color: #fff;
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.site-footer__legal {
  display: flex;
  gap: var(--space-4);
}

.site-footer__legal a {
  color: rgba(255, 255, 255, 0.4);
}
.site-footer__legal a:hover {
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .site-footer__brand {
    grid-column: span 2;
  }

  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .site-footer__brand {
    grid-column: span 1;
  }
}

/* --- Detail Page --- */
.detail-hero {
  padding: var(--space-16) 0 var(--space-10);
  background: linear-gradient(
    135deg,
    var(--color-bg-dark) 0%,
    var(--color-primary) 100%
  );
  color: var(--color-text-light);
}

.detail-hero .eyebrow {
  color: var(--color-accent-light);
}

.detail-hero h1 {
  color: var(--color-text-light);
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.detail-hero p {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  max-width: 640px;
}

/* --- Content Prose --- */
.prose {
  font-size: var(--text-lg);
  line-height: var(--leading-normal);
  color: var(--color-text);
}

.prose p {
  margin-bottom: var(--space-4);
}

.prose ul,
.prose ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.prose ul {
  list-style: disc;
}

.prose ol {
  list-style: decimal;
}

.prose li {
  margin-bottom: var(--space-2);
}

/* --- Delivery Grid --- */
.delivery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .delivery-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Thank-you page --- */
.thank-you {
  text-align: center;
  padding-block: var(--space-24);
}

.thank-you__icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(57, 153, 9, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  font-size: var(--text-4xl);
  color: var(--color-accent);
}

/* --- Scroll Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}