/* ============================================================
   UltraTool360 — Homepage Styles & Polish
   ============================================================ */

/* ---- Top Scroll Progress Indicator ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-primary);
  z-index: calc(var(--z-sticky) + 10);
  transition: width 0.1s ease-out;
  box-shadow: 0 0 10px var(--color-primary);
}

/* ---- Ambient Mouse Glow ---- */
.mouse-glow {
  position: fixed;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, hsla(194, 89%, 27%, 0.1) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 0;
  transition: opacity 0.4s ease;
  opacity: 0;
}

[data-theme="dark"] .mouse-glow {
  background: radial-gradient(circle, hsla(194, 89%, 50%, 0.12) 0%, transparent 70%);
}

/* ---- Button Ripple Effect ---- */
.btn {
  position: relative;
  overflow: hidden;
}

.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

/* ---- Hero Section ---- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: var(--space-20) 0 var(--space-16);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: var(--gradient-mesh);
  opacity: 0.6;
}

.hero__aurora {
  position: absolute;
  inset: -50%;
  z-index: 0;
  background: var(--gradient-aurora);
  background-size: 400% 400%;
  animation: aurora 15s ease infinite;
  opacity: 0.15;
  filter: blur(80px);
}

[data-theme="dark"] .hero__aurora {
  opacity: 0.25;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  animation: fadeInDown 0.6s var(--ease-spring) both;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero__title {
  font-size: var(--text-7xl);
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-none);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s var(--ease-spring) 0.1s both;
}

.hero__title-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: var(--leading-relaxed);
  animation: fadeInUp 0.6s var(--ease-spring) 0.2s both;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  animation: fadeInUp 0.6s var(--ease-spring) 0.3s both;
}

@media (min-width: 480px) {
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-8);
  margin-top: var(--space-12);
  animation: fadeInUp 0.6s var(--ease-spring) 0.4s both;
}

.hero__stat {
  text-align: center;
}

.hero__stat-value {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  color: var(--color-text);
}

.hero__stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

/* Floating Elements */
.hero__floating {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.hero__float-icon {
  position: absolute;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  animation: float 6s ease-in-out infinite;
  opacity: 0.6;
}

.hero__float-icon:nth-child(1) {
  top: 12%;
  left: 3%;
  animation-delay: 0s;
}

.hero__float-icon:nth-child(2) {
  top: 18%;
  right: 4%;
  animation-delay: -1.5s;
  width: 46px;
  height: 46px;
}

.hero__float-icon:nth-child(3) {
  top: 55%;
  left: 4%;
  animation-delay: -3s;
  width: 44px;
  height: 44px;
}

.hero__float-icon:nth-child(4) {
  top: 62%;
  right: 3%;
  animation-delay: -4.5s;
}

.hero__float-icon:nth-child(5) {
  top: 35%;
  left: 2%;
  animation-delay: -2s;
  width: 40px;
  height: 40px;
}

.hero__float-icon:nth-child(6) {
  top: 40%;
  right: 2%;
  animation-delay: -3.5s;
  width: 44px;
  height: 44px;
}

@media (max-width: 1024px) {
  .hero__float-icon {
    display: none;
  }
}

.hero__gradient-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 150px;
  background: var(--hero-gradient);
  z-index: 1;
  pointer-events: none;
}


/* ---- Search Bar ---- */
.hero-search {
  position: relative;
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
}

.hero-search__input {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  padding-left: var(--space-12);
  font-size: var(--text-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--glass-bg-heavy);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  color: var(--color-text);
  transition: all var(--duration-normal) var(--ease-default);
  outline: none;
}

.hero-search__input::placeholder {
  color: var(--color-text-tertiary);
}

.hero-search__input:focus {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.hero-search__icon {
  position: absolute;
  left: var(--space-5);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.hero-search__kbd {
  position: absolute;
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  font-family: var(--font-mono);
  background: var(--color-bg);
}


/* ---- Universal Upload Section ---- */
.upload-section {
  position: relative;
}

.upload-hero {
  max-width: 720px;
  margin: 0 auto;
}

.upload-hero__area {
  position: relative;
  padding: var(--space-16) var(--space-8);
  border: 2px dashed var(--upload-border);
  border-radius: var(--radius-2xl);
  background: var(--upload-bg);
  text-align: center;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-default);
}

.upload-hero__area:hover {
  border-color: var(--upload-border-active);
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.upload-hero__area.is-dragging {
  border-color: var(--color-primary);
  border-style: solid;
  background: var(--color-primary-light);
  box-shadow: var(--shadow-glow);
}

.upload-hero__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  color: var(--color-primary);
}

.upload-hero__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.upload-hero__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.upload-hero__browse {
  color: var(--color-primary);
  font-weight: var(--weight-semibold);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.upload-hero__formats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.upload-hero__format-tag {
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}


/* ---- Popular Tools Grid ---- */
.tools-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

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

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

@media (min-width: 1024px) {
  .tools-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
  }
}


/* ---- Categories Section ---- */
.categories-scroll {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-4);
  scrollbar-width: none;
  -ms-overflow-style: none;
  scroll-snap-type: x mandatory;
}

.categories-scroll::-webkit-scrollbar {
  display: none;
}

.category-card {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-default);
  scroll-snap-align: start;
  min-width: 140px;
  text-align: center;
}

.category-card:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  color: var(--color-primary);
  transition: all var(--duration-normal) var(--ease-default);
}

.category-card:hover .category-card__icon {
  background: var(--color-primary);
  color: var(--color-primary-text);
}

.category-card__name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

.category-card__count {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}


/* ---- Why Choose / Benefits Section ---- */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

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

.benefit-card {
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  transition: all var(--duration-normal) var(--ease-default);
}

.benefit-card:hover {
  border-color: var(--color-border-focus);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.benefit-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

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

.benefit-card__description {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}


/* ---- Comparison Section ---- */
.comparison {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  max-width: 900px;
  margin: 0 auto;
}

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

.comparison__card {
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--card-border);
}

.comparison__card--traditional {
  background: var(--color-bg-alt);
  opacity: 0.8;
}

.comparison__card--ultratool {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.comparison__card-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.comparison__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.comparison__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.comparison__item-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
}

.comparison__item-icon--check {
  color: var(--color-success);
}

.comparison__item-icon--cross {
  color: var(--color-error);
}


/* ---- Stats Section ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-card {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  border-radius: var(--radius-2xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

.stat-card__value {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

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


/* ---- Testimonials ---- */
.testimonials-carousel {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  gap: var(--space-6);
  transition: transform var(--duration-slow) var(--ease-spring);
}

.testimonial-card {
  flex: 0 0 100%;
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
}

@media (min-width: 768px) {
  .testimonial-card {
    flex: 0 0 calc(50% - var(--space-3));
  }
}

@media (min-width: 1024px) {
  .testimonial-card {
    flex: 0 0 calc(33.333% - var(--space-4));
  }
}

.testimonial-card__stars {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  color: hsl(45, 100%, 51%);
}

.testimonial-card__quote {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
  font-style: italic;
}

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

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neutral-0);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
}

.testimonial-card__name {
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  font-size: var(--text-base);
}

.testimonial-card__role {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.testimonials-dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.testimonials-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-default);
  padding: 0;
}

.testimonials-dot.is-active {
  width: 24px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
}


/* ---- FAQ Section ---- */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
}


/* ---- Newsletter Section ---- */
.newsletter {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-12) var(--space-8);
  border-radius: var(--radius-2xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.newsletter__title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-3);
}

.newsletter__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.newsletter__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (min-width: 480px) {
  .newsletter__form {
    flex-direction: row;
  }
}

.newsletter__input {
  flex: 1;
  padding: var(--space-3) var(--space-5);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  font-size: var(--text-base);
  color: var(--color-text);
  outline: none;
  transition: border-color var(--duration-normal) var(--ease-default);
}

.newsletter__input::placeholder {
  color: var(--color-text-tertiary);
}

.newsletter__input:focus {
  border-color: var(--color-primary);
}

.newsletter__btn {
  white-space: nowrap;
}


/* ---- Navbar Styles ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: var(--navbar-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--navbar-border);
  transition: all var(--duration-normal) var(--ease-default);
}

.navbar.is-hidden {
  transform: translateY(-100%);
}

.navbar.is-scrolled {
  box-shadow: var(--navbar-shadow);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  transition: height var(--duration-normal) var(--ease-default);
}

.navbar.is-scrolled .navbar__inner {
  height: 60px;
}

/* Logo */
.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  flex-shrink: 0;
  z-index: calc(var(--z-sticky) + 1);
}

.navbar__logo-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  color: var(--neutral-0);
}

.navbar__logo-text {
  display: flex;
  align-items: baseline;
}

.navbar__logo-ultra {
  color: var(--color-primary);
}

.navbar__logo-360 {
  color: var(--color-accent);
  font-size: 0.75em;
  margin-left: 1px;
}

/* Nav links */
.navbar__nav {
  display: none;
  gap: var(--space-1);
  align-items: center;
}

@media (min-width: 1024px) {
  .navbar__nav {
    display: flex;
  }
}

.navbar__link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-default);
  white-space: nowrap;
}

.navbar__link:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.navbar__link.is-active {
  color: var(--color-primary);
}

.navbar__link-chevron {
  width: 14px;
  height: 14px;
  transition: transform var(--duration-fast) var(--ease-default);
  margin-left: var(--space-1);
  display: inline-block;
  vertical-align: middle;
}

/* Dropdown */
.navbar__dropdown-wrapper {
  position: relative;
}

.navbar__dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 580px;
  padding: var(--space-6);
  background: var(--glass-bg-heavy);
  backdrop-filter: blur(var(--glass-blur-heavy));
  -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  pointer-events: none;
  z-index: var(--z-dropdown);
}

.navbar__dropdown-wrapper:hover .navbar__dropdown,
.navbar__dropdown-wrapper.is-open .navbar__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.navbar__dropdown-wrapper:hover .navbar__link-chevron {
  transform: rotate(180deg);
}

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

.navbar__dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  transition: background var(--duration-fast) var(--ease-default);
}

.navbar__dropdown-item:hover {
  background: var(--color-surface-hover);
}

.navbar__dropdown-item-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: var(--text-lg);
}

.navbar__dropdown-item-text {
  display: flex;
  flex-direction: column;
}

.navbar__dropdown-item-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

.navbar__dropdown-item-desc {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* Actions */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  z-index: calc(var(--z-sticky) + 1);
}

.navbar__action-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-default);
}

.navbar__action-btn:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

.navbar__action-btn svg {
  width: 20px;
  height: 20px;
}

/* Mobile toggle */
.navbar__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  border-radius: var(--radius-lg);
  z-index: calc(var(--z-sticky) + 1);
}

@media (min-width: 1024px) {
  .navbar__toggle {
    display: none;
  }
}

.navbar__toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--ease-default);
  transform-origin: center;
}

.navbar__toggle.is-active .navbar__toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__toggle.is-active .navbar__toggle-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__toggle.is-active .navbar__toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu */
.navbar__mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-sticky);
  background: var(--color-bg);
  padding: calc(72px + var(--space-6)) var(--container-padding) var(--space-6);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);
  transition: all var(--duration-normal) var(--ease-out);
}

.navbar__mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.navbar__mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

.navbar__mobile-submenu {
  display: none;
  padding: var(--space-2) 0 var(--space-4) var(--space-4);
}

.navbar__mobile-submenu.is-open {
  display: block;
}

.navbar__mobile-submenu-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}


/* ---- Footer Styles ---- */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-16) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

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

.footer__brand {
  max-width: 320px;
}

.footer__brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  margin-bottom: var(--space-4);
}

.footer__brand-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-default);
}

.footer__social-link:hover {
  background: var(--color-primary);
  color: var(--neutral-0);
  transform: translateY(-2px);
}

/* Footer columns */
.footer__column-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-default);
}

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

/* Footer bottom */
.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-8) 0;
  margin-top: var(--space-12);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__copyright {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.footer__bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer__bottom-link {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  transition: color var(--duration-fast) var(--ease-default);
}

.footer__bottom-link:hover {
  color: var(--color-text);
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--neutral-0);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-fixed);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--ease-default);
  border: none;
  cursor: pointer;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}