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

:root {
  --black: #0a0a0a;
  --dark: #111111;
  --card: #161616;
  --border: #2a2a2a;
  --muted: #555555;
  --grey: #888888;
  --light: #cccccc;
  --white: #f5f5f5;
  --accent: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--black);
  color: var(--light);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

/* NAV */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2.5rem;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.05em;
}

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

nav ul a {
  text-decoration: none;
  color: var(--grey);
  font-size: 0.875rem;
  transition: color 0.2s;
}

nav ul a:hover {
  color: var(--white);
}

/* CONTAINER */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2.5rem 4rem;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.hero-content {
  max-width: 600px;
}

.hero-label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--grey);
  margin-bottom: 2.5rem;
  max-width: 480px;
}

/* BUTTON */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  background: var(--white);
  color: var(--black);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 6px;
  transition: background 0.2s, transform 0.15s;
}

.btn:hover {
  background: var(--light);
  transform: translateY(-1px);
}

/* SECTION LABEL */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

/* ABOUT */
.about {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
}

.about h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.about-inner {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.about-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--border);
  flex-shrink: 0;
}

.about-text {
  font-size: 1.05rem;
  color: var(--grey);
  max-width: 580px;
  line-height: 1.8;
}

@media (max-width: 480px) {
  .about-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* APPS */
.apps {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
}

.apps h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.app-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.app-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}

.app-card:hover {
  border-color: #444444;
  transform: translateY(-2px);
}

.app-icon {
  width: 40px;
  height: 40px;
  color: var(--grey);
  margin-bottom: 1.25rem;
}

.app-icon svg {
  width: 100%;
  height: 100%;
}

.app-tag {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.app-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.875rem;
  letter-spacing: -0.01em;
}

.app-card p {
  font-size: 0.9rem;
  color: var(--grey);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.app-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.app-features li {
  font-size: 0.825rem;
  color: var(--muted);
  padding-left: 1rem;
  position: relative;
}

.app-features li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--border);
}

.app-badge {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* CONTACT */
.contact {
  padding: 7rem 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.contact h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.contact p {
  color: var(--grey);
  margin-bottom: 2rem;
  font-size: 1rem;
}

.contact-address {
  margin-top: 1.5rem;
  margin-bottom: 0 !important;
  font-size: 0.875rem !important;
  color: var(--muted) !important;
}

/* FOOTER */
footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
}

/* BURGER */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.burger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: 0.2s;
}

/* MOBILE MENU */
.mobile-menu {
  display: none;
  position: fixed;
  top: 57px;
  left: 0;
  right: 0;
  z-index: 99;
  background: var(--dark);
  border-bottom: 1px solid var(--border);
  flex-direction: column;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 1rem 1.5rem;
  font-size: 0.95rem;
  color: var(--grey);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.mobile-menu a:last-child {
  border-bottom: none;
}

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

/* PRIVACY MODAL */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  max-width: 600px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}

.modal h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.25rem;
}

.modal-date {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.modal h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

.modal p, .modal li {
  font-size: 0.9rem;
  color: var(--grey);
  line-height: 1.75;
}

.modal ul {
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.modal a {
  color: var(--light);
  text-underline-offset: 3px;
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--white);
}

/* FOOTER */
footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
}

.privacy-link {
  color: var(--muted);
  font-size: 0.8rem;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s;
}

.privacy-link:hover {
  color: var(--light);
}

/* PRIVACY PAGE */
.privacy-page {
  padding: 10rem 0 7rem;
  min-height: 100vh;
}

.privacy-page h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.privacy-date {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 3rem;
}

.privacy-page h2 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.privacy-page p,
.privacy-page li {
  font-size: 0.95rem;
  color: var(--grey);
  line-height: 1.8;
}

.privacy-page ul {
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.privacy-page a {
  color: var(--light);
  text-underline-offset: 3px;
}

/* RESPONSIVE */
@media (max-width: 680px) {
  nav {
    padding: 1rem 1.5rem;
  }

  .nav-links {
    display: none;
  }

  .burger {
    display: flex;
  }

  .hero {
    padding: 7rem 1.5rem 4rem;
  }

  .container {
    padding: 0 1.5rem;
  }

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

  .about, .apps, .contact {
    padding: 5rem 0;
  }
}