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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #fdfdfd;
  background: radial-gradient(circle at top, #3b0006 0, #140000 40%, #050000 70%, #000000 100%);
  line-height: 1.7;
}

/* Layout helpers */
.kb-section {
  padding: 5rem 1.5rem;
}

.kb-section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

/* Light and dark sections with red-inspired tones */
.kb-section-light {
  background: radial-gradient(circle at top, #3f0007 0, #1b0002 50%, #090000 100%);
}

.kb-section-dark {
  background: radial-gradient(circle at top, #140000 0, #050000 60%, #000000 100%);
}

.kb-section-accent {
  background: linear-gradient(135deg, #f44336 0%, #ff7043 40%, #b71c1c 100%);
  color: #fff;
}

.kb-grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 2.5rem;
}

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

/* Typography */
h1, h2, h3, h4 {
  font-family: "Montserrat", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.03em;
}

h1 {
  font-size: clamp(2.6rem, 4vw, 3.3rem);
}

h2 {
  font-size: clamp(2rem, 3vw, 2.4rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
}

p {
  color: #f5e9ea;
  font-size: 0.98rem;
}

.kb-lead {
  font-size: 1.05rem;
  color: #ffffff;
  margin-bottom: 1rem;
}

.kb-section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.kb-section-header h2 {
  margin-bottom: 0.5rem;
}

/* Navigation */
.kb-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 0, 0, 0.95);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(244, 67, 54, 0.35);
}

.kb-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.6rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kb-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: #ffebee;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.kb-logo img {
  height: 32px;
  width: auto;
}

.kb-nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.kb-nav-links a {
  text-decoration: none;
  color: #ffcdd2;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 500;
  position: relative;
}

.kb-nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #f44336, #ff9800);
  transition: width 0.22s ease;
}

.kb-nav-links a:hover::after {
  width: 100%;
}

/* Mobile nav toggle */
.kb-nav-toggle {
  display: none;
  width: 40px;
  height: 32px;
  border: none;
  background: transparent;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.kb-nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: #ffebee;
  border-radius: 999px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.kb-nav-toggle-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.kb-nav-toggle-active span:nth-child(2) {
  opacity: 0;
}
.kb-nav-toggle-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

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

  .kb-nav-links {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    padding: 0.75rem 1.25rem 1.25rem;
    flex-direction: column;
    background: rgba(20, 0, 0, 0.98);
    border-bottom: 1px solid rgba(244, 67, 54, 0.3);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.18s ease-out, opacity 0.18s ease-out;
  }

  .kb-nav-links.kb-nav-open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }
}

/* Hero */
.kb-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem 3rem;
  background-color: #e4573a; /* Killerbot red */
  color: #ffffff;
  overflow: hidden;
}

.kb-hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.2) 30%, rgba(0, 0, 0, 0.05) 55%, transparent 80%),
    #e4573a url('webassets/bots3Db.png') bottom center no-repeat;
  background-size: cover, contain;
  z-index: -2;
}

.kb-hero-inner {
  position: relative;
  max-width: 960px;
  z-index: 1;
}

.kb-hero-kicker {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  margin-bottom: 0.6rem;
  color: #ffeae1;
}

.kb-hero h1 {
  font-size: clamp(3rem, 7vw, 4.8rem);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 0.9rem;
  color: #ffffff;
}

.kb-hero-subkicker {
  font-size: 1rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  margin-bottom: 2rem;
  color: #ffeae1;
}

/* Buttons */
.kb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  padding: 0.7rem 1.4rem;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
  white-space: nowrap;
}

.kb-btn-primary {
  background: linear-gradient(135deg, #f44336, #ff7043);
  color: #1a0000;
  box-shadow: 0 18px 45px rgba(244, 67, 54, 0.35);
}

.kb-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 25px 60px rgba(244, 67, 54, 0.45);
}

.kb-btn-ghost {
  background: rgba(26, 0, 0, 0.9);
  border-color: rgba(255, 205, 210, 0.7);
  color: #ffebee;
}

.kb-btn-ghost:hover {
  background: rgba(26, 0, 0, 1);
  border-color: #ffebee;
}

.kb-btn-outline {
  border-color: rgba(255, 235, 238, 0.75);
  background: transparent;
  color: #ffebee;
}

.kb-btn-outline:hover {
  background: rgba(26, 0, 0, 0.9);
}

.kb-btn-large {
  padding: 0.9rem 1.9rem;
  font-size: 0.95rem;
}

/* Hero slideshow */
.kb-hero-slideshow {
  position: relative;
  max-width: 1100px;
  margin: 0 auto 2.5rem;
  padding: 0 1.5rem 1.5rem;
}

.kb-hero-slide {
  display: none;
  border-radius: 1.25rem;
  overflow: hidden;
  border: 1px solid rgba(244, 67, 54, 0.4);
  background: radial-gradient(circle at top left, #1a0002, #000000 80%);
  position: relative;
}

.kb-hero-slide img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.kb-hero-slide-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.85rem 1.1rem;
  font-size: 0.85rem;
  background: linear-gradient(180deg, transparent, rgba(20, 0, 0, 0.96));
}

.kb-hero-slide-active {
  display: block;
}

/* Cards & lists */
.kb-card {
  border-radius: 1.1rem;
  padding: 1.6rem;
  border: 1px solid rgba(244, 143, 177, 0.45);
  background: radial-gradient(circle at top left, rgba(26, 0, 2, 0.95), rgba(0, 0, 0, 0.98));
}

.kb-card-glass {
  background: linear-gradient(135deg, rgba(26, 0, 2, 0.9), rgba(0, 0, 0, 0.96));
  backdrop-filter: blur(16px);
}

.kb-about-card {
  align-self: center;
}

.kb-list {
  list-style: none;
  margin-top: 0.3rem;
}

.kb-list li {
  margin-bottom: 0.55rem;
  font-size: 0.95rem;
}

/* Projects */
.kb-project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.8rem;
}

.kb-project-card {
  border-radius: 1.1rem;
  overflow: hidden;
  border: 1px solid rgba(244, 143, 177, 0.35);
  background: radial-gradient(circle at top left, #1a0002, #000000 70%);
  display: flex;
  flex-direction: column;
}

.kb-project-image img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  display: block;
}

.kb-project-body {
  padding: 1.4rem 1.5rem 1.5rem;
}

.kb-project-body p {
  margin-bottom: 0.6rem;
}

.kb-project-body .kb-btn {
  margin-top: 0.5rem;
}

/* DOCE block */
.kb-cta-row {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
}

.kb-cta-caption {
  font-size: 0.85rem;
  opacity: 0.95;
}

.kb-doce-panel {
  border-radius: 1rem;
  padding: 1.6rem;
  background: rgba(26, 0, 2, 0.95);
  border: 1px solid rgba(244, 67, 54, 0.7);
}

.kb-doce-tag {
  display: inline-flex;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  background: rgba(255, 235, 238, 0.16);
  margin-bottom: 0.85rem;
}

/* Contact & social */
.kb-center {
  text-align: center;
}

.kb-contact-actions {
  margin-top: 1.4rem;
  margin-bottom: 0.75rem;
}

.kb-contact-note {
  font-size: 0.9rem;
  color: #ffdde0;
}

.kb-social {
  margin-top: 1.4rem;
  display: flex;
  justify-content: center;
  gap: 0.9rem;
}

.kb-social a {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 205, 210, 0.7);
  color: #ffebee;
  text-decoration: none;
  font-size: 1.1rem;
}

.kb-social a:hover {
  background: rgba(26, 0, 0, 1);
}

/* Footer */
.kb-footer {
  border-top: 1px solid rgba(244, 143, 177, 0.3);
  background: #000000;
  padding: 1.2rem 1.5rem;
}

.kb-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: #ffebee;
}

@media (max-width: 640px) {
  .kb-footer-inner {
    flex-direction: column;
  }
}

/* Small responsive tweaks */
@media (max-width: 768px) {
  .kb-hero-inner {
    padding-top: 2.4rem;
  }

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

#kb-logo-canvas {
  max-width: 260px;
  width: 50vw;
  height: auto;
  display: block;
  margin: 2rem auto 0;
}