/* =========================================================
   The Vacuum Hub — Stylesheet
   ========================================================= */

:root {
  --color-primary: #D62828;
  --color-primary-dark: #B71F1F;
  --color-dark: #1F2937;
  --color-bg: #FAFAFA;
  --color-accent: #2563EB;
  --color-white: #FFFFFF;
  --color-border: #E5E7EB;
  --color-text-muted: #6B7280;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 1px 2px rgba(31, 41, 55, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 41, 55, 0.08);
  --shadow-lg: 0 20px 40px rgba(31, 41, 55, 0.12);

  --container-width: 1180px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-dark);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Keeps anchor-linked sections from being hidden under the sticky nav on jump */
#finder,
#categories,
#picks,
#guides,
#articles {
  scroll-margin-top: 96px;
}

/* ===== Reusable ===== */
.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section {
  padding: 96px 0;
}

.section--alt {
  background: var(--color-white);
}

.section__header {
  max-width: 640px;
  margin-bottom: 48px;
}

.section__header h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 12px;
}

.section__lede {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.grid {
  display: grid;
  gap: 28px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--ghost {
  background: transparent;
  color: var(--color-dark);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-dark);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 10px 18px;
  font-size: 0.85rem;
}

.btn--lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

/* =========================================================
   Navigation
   ========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.nav.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.nav__logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-dark);
}

.nav__logo span {
  color: var(--color-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.nav__links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-dark);
  transition: color var(--transition);
}

.nav__links a:hover {
  color: var(--color-primary);
}

.nav__cta {
  margin-left: 8px;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  transition: transform var(--transition), opacity var(--transition);
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  padding: 72px 0 96px;
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 64px;
}

.hero__content h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  margin-bottom: 20px;
}

.hero__subtext {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 480px;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* =========================================================
   Vacuum Finder (Quiz)
   ========================================================= */
.finder {
  padding: 96px 0;
}

.finder__header {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.finder-card {
  max-width: 760px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 48px;
}

.finder-progress {
  margin-bottom: 40px;
}

.finder-progress__track {
  height: 6px;
  border-radius: 999px;
  background: var(--color-border);
  overflow: hidden;
  margin-bottom: 12px;
}

.finder-progress__fill {
  height: 100%;
  width: 25%;
  background: var(--color-primary);
  border-radius: 999px;
  transition: width 0.4s ease;
}

.finder-progress__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.finder-step {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.finder-step.is-active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.finder-step__question {
  font-size: 1.4rem;
  margin-bottom: 28px;
  text-align: center;
}

.finder-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.finder-options--2col {
  grid-template-columns: repeat(2, 1fr);
}

.finder-options--3col {
  grid-template-columns: repeat(3, 1fr);
}

.finder-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 16px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  background: var(--color-bg);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-dark);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.finder-option:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.finder-option:focus-visible,
.finder-back:focus-visible,
.finder-restart:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.finder-option.is-selected {
  border-color: var(--color-primary);
  background: rgba(214, 40, 40, 0.06);
}

.finder-option__icon {
  font-size: 1.8rem;
}

.finder-back {
  display: block;
  margin: 28px auto 0;
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition);
}

.finder-back:hover {
  color: var(--color-dark);
}

.finder-back[hidden] {
  display: none;
}

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

.finder-result__icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.finder-result__headline {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.finder-result__text {
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto 32px;
}

.finder-result__cta {
  margin-bottom: 20px;
}

.finder-restart {
  display: block;
  margin: 0 auto;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-accent);
  cursor: pointer;
  text-decoration: underline;
}

/* =========================================================
   Category Cards
   ========================================================= */
.grid--categories {
  grid-template-columns: repeat(3, 1fr);
}

.category-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.category-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.category-card h3 {
  font-size: 1.05rem;
  margin: 20px 20px 6px;
}

.category-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0 20px 20px;
}

/* =========================================================
   Product Cards (Editor's Picks)
   ========================================================= */
.grid--products {
  grid-template-columns: repeat(3, 1fr);
}

.product-card {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.product-card__badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  z-index: 2;
}

.product-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.product-card__body {
  padding: 24px;
}

.stars {
  color: var(--color-primary);
  font-size: 0.9rem;
  margin-bottom: 10px;
}

.product-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.product-card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 20px;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.price {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
}

/* =========================================================
   Guide Cards
   ========================================================= */
.grid--guides {
  grid-template-columns: repeat(3, 1fr);
}

.guide-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.guide-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.guide-card__body {
  padding: 24px;
}

.guide-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.guide-card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.guide-card__link {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9rem;
}

/* =========================================================
   Trust Cards
   ========================================================= */
.grid--trust {
  grid-template-columns: repeat(4, 1fr);
}

.trust-card {
  text-align: center;
  padding: 32px 20px;
}

.trust-card__icon {
  font-size: 2rem;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: var(--color-bg);
  border-radius: 50%;
}

.trust-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.trust-card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* =========================================================
   Article Cards
   ========================================================= */
.grid--articles {
  grid-template-columns: repeat(3, 1fr);
}

.article-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.article-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.article-card__body {
  padding: 24px;
}

.article-card__date {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.article-card h3 {
  font-size: 1.1rem;
  margin: 10px 0 8px;
}

.article-card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* =========================================================
   Newsletter
   ========================================================= */
.newsletter {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 72px 0;
}

.newsletter__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.newsletter__inner h2 {
  color: var(--color-white);
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.newsletter__inner p {
  color: rgba(255, 255, 255, 0.7);
}

.newsletter__form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.newsletter__form input {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border: none;
  min-width: 260px;
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.newsletter__form input:focus {
  outline: 2px solid var(--color-accent);
}

.newsletter__message {
  width: 100%;
  margin-top: 12px;
  font-size: 0.9rem;
  color: #86EFAC;
}

/* =========================================================
   Footer
   ========================================================= */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.85);
  padding-top: 64px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer .nav__logo {
  color: var(--color-white);
}

.footer__brand p {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  max-width: 280px;
}

.footer__col h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer__col a {
  display: block;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  margin-bottom: 12px;
  transition: color var(--transition);
}

.footer__col a:hover {
  color: var(--color-white);
}

.footer__social {
  display: flex;
  gap: 12px;
}

.footer__social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 600;
}

.footer__social a:hover {
  background: var(--color-primary);
}

.footer__legal {
  padding: 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

/* =========================================================
   Scroll-reveal animation hook (toggled via JS)
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1024px) {
  .grid--categories,
  .grid--products,
  .grid--guides,
  .grid--articles {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .hero__media {
    max-width: 480px;
    margin: 0 auto;
  }

  .finder-card {
    padding: 40px 32px;
  }
}

@media (max-width: 768px) {
  .nav__links {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav__toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .nav__toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .section {
    padding: 64px 0;
  }

  .finder {
    padding: 64px 0;
  }

  .finder-card {
    padding: 32px 20px;
  }

  .finder-step__question {
    font-size: 1.2rem;
  }

  .finder-options,
  .finder-options--3col {
    grid-template-columns: 1fr 1fr;
  }

  .grid--categories,
  .grid--products,
  .grid--guides,
  .grid--articles,
  .grid--trust {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }

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

  .newsletter__form {
    width: 100%;
  }

  .newsletter__form input {
    flex: 1;
    min-width: 0;
  }
}

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

  .finder-options,
  .finder-options--2col,
  .finder-options--3col {
    grid-template-columns: 1fr;
  }
}