:root {
  --bg-primary: #0f1729;
  --bg-secondary: #1a2332;
  --teal: #00b4d8;
  --teal-hover: #48cae4;
  --amber: #e8a317;
  --amber-hover: #f0b030;
  --text-primary: #e8edf2;
  --text-secondary: #94a3b8;
  --card-bg: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --font: 'Inter', 'Segoe UI', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
  color: var(--text-primary);
  font-family: var(--font);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--teal);
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(15, 23, 41, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: background 0.3s ease;
}

.navbar.scrolled {
  background: rgba(15, 23, 41, 0.97);
}

.nav-logo {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  text-decoration: none;
}

.nav-logo-name {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-primary);
}

.nav-logo-sub {
  font-weight: 300;
  font-size: 0.7rem;
  color: var(--teal);
  letter-spacing: 0.15em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--teal);
}

.nav-lang {
  background: transparent;
  border: 1px solid var(--teal);
  color: var(--teal);
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  transition: background 0.3s;
}

.nav-lang:hover {
  background: rgba(0, 180, 216, 0.1);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-hamburger span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--teal);
  transition: transform 0.3s, opacity 0.3s;
}

/* ── Hero ── */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
  background-color: var(--bg-primary);
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
}

.hero-name {
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 6rem);
  color: var(--text-primary);
}

.hero-divider {
  width: 80px;
  height: 3px;
  background: var(--amber);
  margin: 1rem auto;
}

.hero-subtitle {
  font-weight: 300;
  font-size: clamp(1rem, 2.5vw, 1.8rem);
  color: var(--teal);
  letter-spacing: 0.3em;
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  margin-top: 2rem;
}

.btn-cta {
  display: inline-block;
  margin-top: 2.5rem;
  padding: 1rem 2.5rem;
  background: var(--amber);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 1rem;
  border-radius: 8px;
  transition: transform 0.3s, background 0.3s, box-shadow 0.3s;
  min-height: 44px;
}

.btn-cta:hover {
  transform: translateY(-2px);
  background: var(--amber-hover);
  box-shadow: 0 8px 24px rgba(232, 163, 23, 0.3);
}

.hero-scroll-arrow {
  display: inline-block;
  margin-top: 3rem;
  font-size: 2rem;
  color: var(--teal);
  animation: bounce 2s ease-in-out infinite;
}

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

/* ── About ── */
.about-firm {
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: center;
}

.about-firm p {
  margin-bottom: 1rem;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.founder-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 2rem;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.photo-placeholder {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 2px solid var(--teal);
  box-shadow: 0 4px 15px rgba(0, 180, 216, 0.15);
  object-fit: cover;
  margin: 0 auto;
}

.founder-name {
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.founder-title {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.founder-bio {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ── Services ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out, box-shadow 0.3s, border-color 0.3s;
}

.service-card.visible:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.service-card--amber.visible:hover {
  border-color: var(--amber);
}

.service-card--teal.visible:hover {
  border-color: var(--teal);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.service-card h3 {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.service-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

/* ── Tech Stack ── */
.tech-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem;
  border: 1px solid transparent;
  border-radius: 12px;
  min-width: 100px;
}

.tech-item:hover {
  border-color: var(--teal);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transform: translateY(-3px);
}

.tech-item img {
  filter: grayscale(0.3) brightness(1.1);
  transition: filter 0.3s;
}

.tech-item:hover img {
  filter: grayscale(0) brightness(1);
}

.tech-item span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}



/* ── Contact ── */
.contact-content {
  text-align: center;
}

.contact-intro {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.contact-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font);
  font-size: 1rem;
  padding: 1rem 2.5rem;
  border-radius: 8px;
  transition: transform 0.3s, box-shadow 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
}

.btn-whatsapp {
  background: #25D366;
  color: #fff;
}

.btn-whatsapp:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-email {
  background: transparent;
  border: 1px solid var(--teal);
  color: var(--teal);
}

.btn-email:hover {
  background: rgba(0, 180, 216, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

/* ── Footer ── */
.footer {
  border-top: 1px solid rgba(0, 180, 216, 0.2);
  padding: 2rem;
  text-align: center;
}

.footer-content {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
}

.footer-social a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.3s;
}

.footer-social a:hover {
  color: var(--teal);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ── Sections (shared) ── */
.section {
  padding: 6rem 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--text-primary);
  margin-bottom: 3rem;
  text-align: center;
}

/* ── Scroll Animations ── */
.section.visible {
  opacity: 1;
  transform: translateY(0);
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.tech-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out, box-shadow 0.3s, border-color 0.3s;
}

.tech-item.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: rgba(15, 23, 41, 0.97);
    padding: 1rem 2rem;
    gap: 1rem;
  }

  .nav-links.open {
    display: flex;
  }

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

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .section,
  .service-card,
  .tech-item {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-scroll-arrow {
    animation: none;
  }
}