:root {
  --color-black: #080808;
  --color-black-light: #0a0a0a;
  --color-white: #ffffff;
  --color-gray-100: #eeeeee;
  --color-gray-200: #8d8d8d;
  --color-gray-300: #61625c;
  --color-gray-400: #31312e;
  --color-redis-red: #FF4438;
  --color-redis-red-dark: #C6302B;
  --color-redis-maroon: #912626;
  --color-redis-burgundy: #621B1C;
  --color-redis-burgundy-dark: #9A2928;
  --color-text-primary: #ffffff;
  --color-text-secondary: #8d8d8d;
  --font-body: 'Inter', 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Space Mono', 'Inter', monospace;
  --font-display: 'Poppins', 'Space Grotesk', 'Inter', sans-serif;
  --font-handwriting: 'Permanent Marker', cursive;
  --transition-smooth: all 0.3s ease;
  --max-width: 1200px;
  --section-padding: 80px 0;
  --section-padding-mobile: 56px 0;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-black);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 48px;
}

.section {
  padding: var(--section-padding);
}

.section-mobile {
  padding: var(--section-padding-mobile);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(8, 8, 8, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: -0.03em;
  color: var(--color-redis-red);
}

.footer-logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: -0.03em;
  color: var(--color-redis-red);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  transition: var(--transition-smooth);
  position: relative;
}

.nav-link:hover {
  color: var(--color-redis-red);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-redis-red);
  transition: var(--transition-smooth);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  background-color: var(--color-redis-red);
  color: var(--color-black);
  padding: 12px 28px;
  border-radius: 0;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: var(--transition-smooth);
  border: 1px solid var(--color-redis-red);
}

.nav-cta:hover {
  background-color: transparent;
  color: var(--color-redis-red);
  transform: translateY(-2px);
}

.nav-cta::after {
  display: none;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--color-white);
  transition: var(--transition-smooth);
}

/* Hero Section */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}

/* Compact hero: content-driven height instead of forced viewport fill */
.hero-compact {
  min-height: auto;
  padding: 150px 0 72px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
              background: radial-gradient(circle at 20% 50%, rgba(255, 68, 56, 0.05) 0%, transparent 30%),
              radial-gradient(circle at 80% 30%, rgba(255, 68, 56, 0.05) 0%, transparent 30%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-white);
  margin-bottom: 24px;
}

.hero-title .line {
  display: block;
}

.hero-title .gradient-text {
  background: linear-gradient(90deg, var(--color-redis-red) 0%, var(--color-redis-red-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 24px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  margin-top: 24px;
}

.btn-primary {
  background-color: var(--color-redis-red);
  color: var(--color-black);
  padding: 16px 36px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--color-redis-red);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--color-redis-red);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  padding: 16px 36px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--color-redis-red);
  color: var(--color-redis-red);
  transform: translateY(-2px);
}

.hero-image {
  justify-self: end;
  position: relative;
}

.hero-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  transform: rotate(3deg);
  z-index: -1;
}

.hero-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 32px;
  backdrop-filter: blur(20px);
  width: 500px;
  max-width: 100%;
}

.hero-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.hero-card-item {
  text-align: center;
  padding: 16px;
  background: rgba(8, 8, 8, 0.5);
  border-radius: 6px;
}

.hero-card-item .label {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.hero-card-item .value {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
}

.hero-card-code {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--color-text-secondary);
  background: rgba(0, 0, 0, 0.5);
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.05);
  text-align: left;
}

.hero-card-code .comment {
  color: var(--color-redis-maroon);
}

.hero-card-code .keyword {
  color: var(--color-redis-red-dark);
}

.hero-card-code .string {
  color: var(--color-redis-red);
}

/* About Section */
.about {
  background-color: var(--color-black-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  justify-self: start;
  max-width: 400px;
}

.about-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  transform: translate(20px, -20px);
  z-index: -1;
}

.about-content h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
}

.about-content h2 .gradient-text {
  background: linear-gradient(90deg, var(--color-redis-red) 0%, var(--color-redis-red-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-content p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

/* Services Preview */
.services-preview {
  background-color: var(--color-black);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 32px;
}

.section-header .overline {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-redis-red);
  margin-bottom: 24px;
}

/* Bare overlines outside .section-header (e.g. Quem Somos) */
.overline {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-redis-red);
}
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
}

.section-header .section-sub {
  margin-top: 16px;
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.section-header .section-sub strong {
  color: var(--color-white);
  font-weight: 700;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* Homepage: all 4 specialization cards side by side */
.services-grid-4 {
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 22px;
  transition: var(--transition-smooth);
  text-align: center;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  background: rgba(255, 68, 56, 0.03);
  border-color: var(--color-redis-red);
  transform: translateY(-6px);
}

.service-card .service-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 68, 56, 0.1);
  border-radius: 8px;
  color: var(--color-redis-red);
}

/* Google Material Symbols - official icons (https://fonts.google.com/icons) */
.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  user-select: none;
}

.service-card .material-symbols-outlined {
  font-size: 26px;
}

.contact-grid .material-symbols-outlined {
  font-size: 20px;
  color: var(--color-redis-red);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-card p {
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  line-height: 1.6;
  margin-bottom: 12px;
}

.service-card a {
  display: inline-block;
  margin-top: auto;
  padding-top: 4px;
}

/* Case Studies Preview */
.case-studies {
  background-color: var(--color-black-light);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.case-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.case-card:hover {
  border-color: var(--color-redis-red);
  transform: translateY(-4px);
}

.case-card .case-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--color-text-secondary);
  font-family: var(--font-heading);
  letter-spacing: 0.1em;
}

.case-card .case-meta .dot {
  width: 4px;
  height: 4px;
  background-color: var(--color-redis-red);
  border-radius: 50%;
}

.case-card h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 500;
}

.case-card .case-description {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
  flex-grow: 1;
}

/* Case Detail */
.case-detail {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 48px;
  margin-bottom: 40px;
  transition: var(--transition-smooth);
}

.case-detail:hover {
  border-color: var(--color-redis-red);
}

.case-detail-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--color-text-secondary);
  font-family: var(--font-heading);
  letter-spacing: 0.1em;
}

.case-detail-year {
  margin-left: auto;
  color: var(--color-redis-red);
}

.case-detail-meta .dot {
  width: 4px;
  height: 4px;
  background-color: var(--color-redis-red);
  border-radius: 50%;
}

.case-detail h3 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.case-detail h4 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--color-white);
}

.case-detail p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.case-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.tech-badge {
  background: rgba(255, 68, 56, 0.1);
  border: 1px solid rgba(255, 68, 56, 0.2);
  color: var(--color-redis-red);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 20px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-black-light) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 48px;
  text-align: center;
}

.cta-section h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  margin-bottom: 32px;
}

/* Contact page grid */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Quiz dimensions grid */
.quiz-dimensions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* About stats grid */
.about-stats-grid {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background-color: var(--color-black);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 48px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-column h4 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer-column p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: var(--transition-smooth);
}

.footer-nav a:hover {
  color: var(--color-redis-red);
}

.social-links {
  display: flex;
  gap: 16px;
  margin-top: 20px;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-smooth);
  font-size: 16px;
}

.social-link:hover {
  background: var(--color-redis-red);
  color: var(--color-black);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* Reusable responsive grids (replaces inline grid styles) */
.responsive-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.responsive-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    justify-self: center;
    max-width: 100%;
  }

  .hero-card {
    max-width: 100%;
  }

  .about-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-image {
    justify-self: center;
  }

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

  .services-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .responsive-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .responsive-grid-2 {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .contact-grid {
    grid-template-columns: 1fr !important;
  }

  .quiz-dimensions-grid {
    grid-template-columns: 1fr !important;
  }

  .about-stats-grid {
    flex-direction: column;
  }

  .about-stats-grid > div {
    min-width: 0 !important;
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 120px;
  }

  .hero-compact {
    padding: 120px 0 48px;
  }

  .hero-title {
    font-size: 2.25rem;
    overflow-wrap: break-word;
  }

  .section {
    padding: 60px 0;
  }

  .container {
    padding: 0 20px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn-primary,
  .hero-buttons .btn-secondary {
    width: 100%;
    text-align: center;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background-color: rgba(8, 8, 8, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 20px 20px;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu .nav-link {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 16px;
  }

  .nav-menu .nav-link::after {
    display: none;
  }

  .nav-menu .nav-cta {
    text-align: center;
    margin-top: 12px;
    border-bottom: none;
  }

  .nav-container {
    position: relative;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .contact-form-grid {
    grid-template-columns: 1fr !important;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .responsive-grid-3,
  .responsive-grid-2,
  .services-grid,
  .services-grid-4 {
    grid-template-columns: 1fr;
  }

  .quiz-step {
    padding: 24px;
  }

  .quiz-question {
    font-size: 1.25rem;
  }

  .quiz-option {
    padding: 16px;
  }

  .quiz-footer {
    flex-wrap: wrap;
    gap: 12px;
  }

  .quiz-footer .btn-primary,
  .quiz-footer .btn-secondary {
    flex: 1 1 100%;
    text-align: center;
  }

  .hero-card {
    width: 100%;
    max-width: 100%;
    padding: 20px;
  }

  .hero-image {
    justify-self: stretch;
  }

  .hero .scroll-indicator {
    display: none;
  }

  .hero-card-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .hero-card-item {
    padding: 8px;
    min-width: 0;
  }

  .hero-card-item .value {
    font-size: 16px;
  }

  .case-detail {
    padding: 24px;
  }

  .case-detail h3 {
    font-size: 1.5rem;
  }

  .cta-section {
    padding: 24px;
  }

  .cta-section h2 {
    font-size: 1.5rem;
  }

  .cta-section .btn-primary {
    width: 100%;
    text-align: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .scroll-indicator {
    display: none;
  }

  .about-stats-grid {
    flex-direction: column;
  }

  .contact-grid {
    gap: 40px;
  }
}

@media (max-width: 400px) {
  .hero-card-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: 14px 24px;
    font-size: 13px;
  }
}

/* Animation utilities */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 10;
}

.scroll-text {
  font-size: 12px;
  color: var(--color-text-secondary);
  font-family: var(--font-heading);
  letter-spacing: 0.2em;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-redis-red) 0%, transparent 100%);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-black);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

/* Case accordion */
.case-accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-accordion-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-smooth);
  scroll-margin-top: 96px;
}

.case-accordion-item:hover {
  border-color: var(--color-redis-red);
}

.case-accordion-header {
  width: 100%;
  background: transparent;
  border: none;
  padding: 16px 24px;
  cursor: pointer;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  font-family: inherit;
  transition: background 0.3s ease;
}

.case-accordion-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.case-accordion-header:focus {
  outline: 2px solid var(--color-redis-red);
  outline-offset: 2px;
}

.case-accordion-meta {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  font-family: var(--font-heading);
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
}

.case-accordion-meta .dot {
  width: 4px;
  height: 4px;
  background-color: var(--color-redis-red);
  border-radius: 50%;
}

.case-detail-year {
  color: var(--color-redis-red);
  font-weight: 700;
}

.case-accordion-content h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-white);
  margin: 0 0 12px;
  padding-top: 20px;
}

.accordion-chevron {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.accordion-chevron svg {
  width: 20px;
  height: 20px;
  fill: var(--color-text-secondary);
  transition: fill 0.3s ease;
}

.case-accordion-header[aria-expanded="true"] .accordion-chevron {
  transform: rotate(180deg);
}

.case-accordion-header[aria-expanded="true"] .accordion-chevron svg {
  fill: var(--color-redis-red);
}

.case-accordion-content {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s ease;
  padding: 0 24px;
}

.case-accordion-item.active .case-accordion-content {
  max-height: 5000px;
  padding: 0 24px 32px;
}

.case-accordion-content h4 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 32px 0 12px;
  color: var(--color-white);
}

.case-accordion-content p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.case-results-list {
  margin: 16px 0;
  padding-left: 0;
  list-style: none;
}

.case-results-list li {
  margin-bottom: 8px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  position: relative;
  padding-left: 20px;
}

.case-results-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-redis-red);
}

.case-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.tech-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 68, 56, 0.1);
  border: 1px solid rgba(255, 68, 56, 0.2);
  color: var(--color-redis-red);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  border-radius: 20px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Mobile */
@media (max-width: 768px) {
  .case-accordion-header {
    padding: 20px 24px;
    gap: 12px;
  }

  .case-detail-meta {
    flex-wrap: wrap;
  }

  .case-accordion-header h3 {
    font-size: 1.25rem;
    flex: 1;
  }

  .case-accordion-content {
    padding: 0 24px;
  }

  .case-accordion-item.active .case-accordion-content {
    padding: 0 24px 24px;
  }

  .case-accordion-content h4 {
    margin: 24px 0 12px;
  }

  .case-detail-year {
    width: 100%;
  }
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ============ Motion & animation ============ */
@keyframes rise-in {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes code-in {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes float-soft {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes gradient-pan {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes blink-caret {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

@keyframes scroll-drop {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(400%); }
}

/* Hero entrance (pure CSS, runs on page load) */
.hero-title .line {
  animation: rise-in 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-title .line:nth-child(2) { animation-delay: 0.12s; }
.hero-title .line:nth-child(3) { animation-delay: 0.24s; }
.hero-subtitle { animation: rise-in 0.8s ease 0.3s both; }
.hero-buttons { animation: rise-in 0.8s ease 0.45s both; }
.hero-card {
  animation:
    float-soft 7s ease-in-out 1.6s infinite,
    rise-in 0.9s ease 0.35s backwards;
}

/* Gradient shimmer */
.gradient-text {
  background-size: 200% auto;
  animation: gradient-pan 6s ease infinite;
}

/* Animated scroll hint */
.scroll-line {
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 25%;
  background: var(--color-white);
  animation: scroll-drop 1.8s ease-in-out infinite;
}

/* Code block: staggered line reveal + caret */
.hero-card-code .code-line {
  display: block;
  opacity: 0;
  animation: code-in 0.5s ease forwards;
  animation-delay: var(--d, 0s);
}
.typing-caret {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--color-redis-red);
  vertical-align: -2px;
  animation: blink-caret 1s steps(1) infinite;
}

/* Grid stagger (combines with existing .fade-in-up reveal) */
.services-grid .fade-in-up:nth-child(2),
.case-grid .fade-in-up:nth-child(2),
.responsive-grid-3 .fade-in-up:nth-child(2) { transition-delay: 0.08s; }
.services-grid .fade-in-up:nth-child(3),
.case-grid .fade-in-up:nth-child(3),
.responsive-grid-3 .fade-in-up:nth-child(3) { transition-delay: 0.16s; }
.services-grid .fade-in-up:nth-child(4),
.case-grid .fade-in-up:nth-child(4) { transition-delay: 0.24s; }
.services-grid .fade-in-up:nth-child(5),
.case-grid .fade-in-up:nth-child(5) { transition-delay: 0.32s; }
.services-grid .fade-in-up:nth-child(6),
.case-grid .fade-in-up:nth-child(6) { transition-delay: 0.4s; }
.case-grid .fade-in-up:nth-child(7) { transition-delay: 0.48s; }

/* Header reacts to scroll */
.header {
  transition: background-color 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.header.scrolled {
  background-color: rgba(8, 8, 8, 0.95);
  border-bottom-color: rgba(255, 68, 56, 0.25);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

/* Button shine sweep */
.btn-primary {
  position: relative;
  overflow: hidden;
}
.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
  pointer-events: none;
}
.btn-primary:hover::after { left: 130%; }

/* Service icon pop on hover */
.service-card .material-symbols-outlined {
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.service-card:hover .material-symbols-outlined {
  transform: scale(1.15) rotate(-4deg);
}

/* Scroll progress bar (injected by JS) */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--color-redis-red), var(--color-redis-red-dark));
  z-index: 2000;
}

/* Back-to-top button (injected by JS) */
#to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(8, 8, 8, 0.85);
  backdrop-filter: blur(10px);
  color: var(--color-redis-red);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
  z-index: 2000;
}
#to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
#to-top:hover {
  background: var(--color-redis-red);
  color: var(--color-black);
}
#to-top svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-in-up { opacity: 1; transform: none; }
  .hero-card-code .code-line { opacity: 1; }
  .tech-carousel { overflow-x: auto; }
  .tech-track { animation: none; width: auto; }
}

/* ============ Abstract CQRS-style flow (homepage, no words) ============ */
.pipeline-svg {
  width: 100%;
  height: auto;
  display: block;
}

.cqrs-path {
  fill: none;
  stroke-dasharray: 6 8;
  stroke-linecap: round;
}

.cqrs-write { animation: stream-flow 5.5s linear infinite; }
.cqrs-read { animation: stream-flow-rev 7s linear infinite; }

@keyframes stream-flow {
  to { stroke-dashoffset: -28; }
}

@keyframes stream-flow-rev {
  to { stroke-dashoffset: 28; }
}

.cqrs-bridge {
  stroke-dasharray: 3 5;
}

.cqrs-pkt {
  offset-rotate: 0deg;
  animation: pkt-move 6s linear infinite;
}

.pkt-left {
  offset-path: path('M170,64 C122,104 96,152 96,200 C96,248 122,292 170,322');
  filter: drop-shadow(0 0 5px rgba(255, 68, 56, 0.9));
}

.pkt-right {
  offset-path: path('M170,64 C218,104 244,152 244,200 C244,248 218,292 170,322');
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.7));
}

.sync-pkt {
  animation: sync-sweep 4.2s ease-in-out infinite;
}

.ping-ring {
  fill: none;
  transform-box: fill-box;
  transform-origin: center;
  animation: ring-ping 4.8s ease-out infinite;
}

.orb {
  animation: orb-drift ease-in-out infinite;
  animation-duration: var(--t, 8s);
}

/* ============ Tech carousel ============ */
@keyframes marquee {
  to { transform: translateX(-50%); }
}

@keyframes pkt-move {
  from { offset-distance: 0%; }
  to { offset-distance: 100%; }
}

@keyframes sync-sweep {
  0% { transform: translateX(0); opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { transform: translateX(140px); opacity: 0; }
}

@keyframes ring-ping {
  0% { transform: scale(0.4); opacity: 0.9; }
  100% { transform: scale(1.9); opacity: 0; }
}

@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0); opacity: 0.45; }
  50% { transform: translate(var(--dx, 20px), var(--dy, -28px)); opacity: 1; }
}

@keyframes drift-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-90px, 70px) scale(1.15); }
}

@keyframes drift-b {
  0%, 100% { transform: translate(0, 0) scale(1.1); }
  50% { transform: translate(100px, -60px) scale(1); }
}

/* Discreet animated background: two slow-drifting gradient glows */
body::before,
body::after {
  content: '';
  position: fixed;
  width: 60vmax;
  height: 60vmax;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
}

body::before {
  top: -20vmax;
  right: -15vmax;
  background: radial-gradient(closest-side, rgba(255, 68, 56, 0.07), transparent 70%);
  animation: drift-a 28s ease-in-out infinite;
}

body::after {
  bottom: -22vmax;
  left: -16vmax;
  background: radial-gradient(closest-side, rgba(154, 41, 40, 0.08), transparent 70%);
  animation: drift-b 34s ease-in-out infinite;
}

.tech-carousel {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.tech-track {
  display: flex;
  width: max-content;
  padding: 8px 0 16px;
  animation: marquee 36s linear infinite;
}

.tech-carousel:hover .tech-track,
.tech-carousel:focus-within .tech-track {
  animation-play-state: paused;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 12px;
  padding: 10px 18px;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  transition: border-color 0.3s ease, background-color 0.3s ease, transform 0.3s ease;
}

.tech-item:hover {
  border-color: var(--color-redis-red);
  background: rgba(255, 68, 56, 0.06);
  transform: translateY(-2px);
}

.tech-item img {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  object-fit: contain;
}

/* Devicons artwork ships colored; normalize to monochrome */
.tech-item img.tech-mono {
  filter: brightness(0) invert(1);
}

.tech-item span {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
}