/* ===== Narrativ — Main Styles ===== */

:root {
  --bg: #0A0E27;
  --bg-elevated: #111638;
  --bg-card: rgba(17, 22, 56, 0.6);
  --cyan: #00D4FF;
  --cyan-dim: rgba(0, 212, 255, 0.15);
  --cyan-glow: rgba(0, 212, 255, 0.4);
  --white: #FFFFFF;
  --text-muted: rgba(255, 255, 255, 0.55);
  --text-dim: rgba(255, 255, 255, 0.35);
  --border: rgba(0, 212, 255, 0.12);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  --radius: 12px;
  --radius-lg: 20px;
  --nav-h: 72px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: min(1120px, 100% - 2rem);
  margin-inline: auto;
}

/* ===== PCB Background ===== */
.pcb-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.pcb-bg__svg {
  width: 100%;
  height: 100%;
  opacity: 0.6;
}

.pcb-bg__traces path {
  stroke-dasharray: 2000;
  stroke-dashoffset: 2000;
  animation: pcb-drift 20s linear infinite;
}

@keyframes pcb-drift {
  to { stroke-dashoffset: 0; }
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background var(--transition), backdrop-filter var(--transition);
}

.nav--scrolled {
  background: rgba(10, 14, 39, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--cyan);
}

.nav__logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.nav__cta {
  padding: 0.5rem 1.25rem !important;
  border: 1px solid var(--border) !important;
  border-radius: 8px;
  color: var(--cyan) !important;
  transition: border-color var(--transition), box-shadow var(--transition) !important;
}

.nav__cta:hover {
  border-color: var(--cyan) !important;
  box-shadow: 0 0 20px var(--cyan-dim);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) 1rem 4rem;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__tagline {
  margin-top: 2rem;
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  font-weight: 300;
  max-width: 420px;
  opacity: 0;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-top: 2.5rem;
  opacity: 0;
}

.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 10px;
  transition: all var(--transition);
}

.btn--primary {
  position: relative;
  background: transparent;
  color: var(--white);
  border: 1px solid var(--cyan);
  overflow: hidden;
}

.btn--primary::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  border: 1px solid var(--cyan);
  opacity: 0;
  animation: btn-pulse 2.5s ease-in-out infinite;
}

@keyframes btn-pulse {
  0%, 100% { opacity: 0; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.04); }
}

.btn--primary:hover {
  background: var(--cyan-dim);
  box-shadow: 0 0 30px var(--cyan-glow);
}

.btn--ghost {
  color: var(--text-muted);
  border: 1px solid transparent;
}

.btn--ghost:hover {
  color: var(--white);
  border-color: var(--border);
}

.btn--full { width: 100%; }

/* ===== Sections ===== */
.section {
  position: relative;
  z-index: 1;
  padding: 6rem 0;
}

.section__header {
  max-width: 560px;
  margin-bottom: 3.5rem;
}

.section__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section__desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* ===== Reveal animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: calc(var(--delay, 0) * 1s);
}

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

/* ===== Services ===== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  position: relative;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: rgba(0, 212, 255, 0.35);
  box-shadow: 0 8px 40px rgba(0, 212, 255, 0.08);
  transform: translateY(-4px);
}

.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 48px;
  height: 48px;
  color: var(--cyan);
  margin-bottom: 1.25rem;
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.service-card__line {
  position: absolute;
  bottom: 0;
  left: 2rem;
  right: 2rem;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

.service-card:hover .service-card__line {
  transform: scaleX(1);
}

/* ===== Why ===== */
.why {
  background: linear-gradient(180deg, transparent, rgba(0, 212, 255, 0.02), transparent);
}

.why__pcb {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px),
    linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
  pointer-events: none;
}

.why__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.why__stats {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stat {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}

.stat__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.stat__suffix {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--cyan);
}

.stat__label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.why__bullets {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.why__bullets li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.why__bullet-icon {
  color: var(--cyan);
  font-size: 0.5rem;
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.why__bullets strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.why__bullets p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ===== Portfolio ===== */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.project-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--transition), transform var(--transition);
}

.project-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-2px);
}

.project-card__visual {
  height: 180px;
  background: linear-gradient(135deg, var(--bg-elevated), rgba(0, 212, 255, 0.08));
  display: flex;
  align-items: flex-end;
  padding: 1.25rem;
  position: relative;
  overflow: hidden;
}

.project-card__visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, var(--accent, var(--cyan)) 0%, transparent 50%);
  opacity: 0.15;
}

.project-card__category {
  position: relative;
  z-index: 1;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent, var(--cyan));
  font-weight: 500;
}

.project-card__body {
  padding: 1.5rem;
}

.project-card__body h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.project-card__body p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.project-card__link {
  font-size: 0.85rem;
  color: var(--cyan);
  transition: letter-spacing var(--transition);
}

.project-card__link:hover { letter-spacing: 0.05em; }

.project-card__reveal {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 39, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s ease;
  backdrop-filter: blur(4px);
}

.project-card__reveal span {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  font-family: var(--font-display);
}

.project-card:hover .project-card__reveal { opacity: 1; }

/* ===== Contact ===== */
.contact {
  background: linear-gradient(180deg, transparent, rgba(17, 22, 56, 0.5));
  border-top: 1px solid var(--border);
}

.contact__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact__social {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.contact__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
  transition: color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.contact__social a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-dim);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--white);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-dim);
}

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

.form-status {
  font-size: 0.85rem;
  text-align: center;
  min-height: 1.25rem;
}

.form-status--success { color: #00FFB2; }
.form-status--error { color: #FF6B6B; }

.form-botcheck {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 1;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.footer__nav {
  display: flex;
  gap: 1.5rem;
}

.footer__nav a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

.footer__copy {
  width: 100%;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-dim);
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .services__grid { grid-template-columns: 1fr; }
  .why__layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .contact__layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .portfolio__grid { grid-template-columns: 1fr; }
}

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

  .nav__links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background: rgba(10, 14, 39, 0.97);
    backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform 0.4s ease;
  }

  .nav__links.is-open { transform: translateX(0); }

  .nav__links a { font-size: 1.25rem; }

  .footer__inner { flex-direction: column; text-align: center; }
  .footer__nav { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; width: 100%; }
  .hero__actions .btn { width: 100%; }
  .section { padding: 4rem 0; }
}