:root {
  --color-bg-base: #02050d;
  --color-bg-panel: rgba(9, 18, 38, 0.82);
  --color-bg-soft: rgba(14, 30, 64, 0.72);
  --color-line: rgba(131, 184, 255, 0.42);
  --color-line-strong: rgba(177, 214, 255, 0.86);
  --color-accent: #59a8ff;
  --color-accent-soft: #1e4d90;
  --color-text-main: #f5f9ff;
  --color-text-muted: #b2c8e8;
  --font-heading: 'Cinzel', serif;
  --font-body: 'Montserrat', sans-serif;
  --transition-smooth: 0.3s ease;
}

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

html,
body {
  min-height: 100%;
}

body {
  background: radial-gradient(circle at 20% 20%, #0a1b3f 0%, var(--color-bg-base) 55%, #010206 100%);
  color: var(--color-text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: var(--page-bg, none);
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  filter: grayscale(0.25) contrast(1.05);
  pointer-events: none;
  z-index: -3;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: linear-gradient(160deg, rgba(2, 7, 16, 0.92), rgba(5, 13, 30, 0.84));
  pointer-events: none;
  z-index: -2;
}

body[data-page='home'] {
  --page-bg: url('https://assets.codepen.io/16690949/pexels-carboxaldehyde-1978340-5786211.jpg');
}

body[data-page='archive'] {
  --page-bg: url('https://assets.codepen.io/16690949/pexels-dziana-hasanbekava-7063741.jpg');
}

body[data-page='about'] {
  --page-bg: url('https://assets.codepen.io/16690949/pexels-gantas-4075365.jpg');
}

body[data-page='contact'] {
  --page-bg: url('https://assets.codepen.io/16690949/pexels-md-photography-2150970498-31855393.jpg');
}

body[data-page='portal'] {
  --page-bg: url('https://assets.codepen.io/16690949/pexels-cottonbro-8371715.jpg');
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-main);
  text-shadow: 0 0 14px rgba(83, 161, 255, 0.35);
}

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

.global-nav {
  position: sticky;
  top: 0;
  width: 100%;
  padding: 0.95rem 1.4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  z-index: 1000;
  background: rgba(3, 9, 22, 0.94);
  border-bottom: 1px solid var(--color-line-strong);
  backdrop-filter: blur(8px);
}

.nav-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--color-text-main);
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), background var(--transition-smooth);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(41, 85, 155, 0.28);
  border-color: var(--color-line-strong);
  transform: translateY(-1px);
}

.audio-toggle {
  background: rgba(24, 64, 123, 0.88);
  border: 1px solid var(--color-line-strong);
  color: var(--color-text-main);
  padding: 0.5rem 0.85rem;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition-smooth), transform var(--transition-smooth);
}

.audio-toggle:hover {
  background: rgba(70, 125, 212, 0.84);
  transform: translateY(-1px);
}

.hero {
  min-height: 76vh;
  display: grid;
  place-items: center;
  text-align: center;
  position: relative;
  padding: 3rem 1rem 2rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  filter: saturate(0.85) brightness(0.72);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  padding: 2rem;
  background: var(--color-bg-panel);
  border: 1px solid var(--color-line-strong);
  border-radius: 28px;
  box-shadow: 0 20px 42px rgba(0, 0, 0, 0.4);
}

.hero-title {
  font-size: clamp(2.1rem, 7vw, 4.8rem);
  margin-bottom: 0.7rem;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  color: var(--color-text-muted);
  margin-bottom: 1.8rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--color-line-strong);
  border-radius: 999px;
  background: rgba(18, 49, 93, 0.86);
  color: var(--color-text-main);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
  margin: 0.35rem;
  text-transform: uppercase;
}

.btn:hover,
.btn:focus-visible {
  background: rgba(61, 117, 200, 0.86);
  transform: translateY(-2px);
  box-shadow: 0 0 18px rgba(89, 168, 255, 0.38);
}

.video-section {
  padding: 3rem 1rem;
  display: flex;
  justify-content: center;
}

.video-wrapper {
  width: min(100%, 980px);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--color-line-strong);
  border-radius: 18px;
  overflow: hidden;
  background: #01060f;
}

.video-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.archive-board {
  min-height: 100vh;
  padding: 2rem 1rem 1rem;
  position: relative;
}

.nodes-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  max-width: 1100px;
  margin: 0 auto;
}

.node {
  background: rgba(10, 24, 52, 0.82);
  border: 1px solid var(--color-line-strong);
  border-radius: 16px;
  padding: 1.2rem;
  cursor: pointer;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), background var(--transition-smooth);
  text-align: center;
}

.node:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 16px rgba(89, 168, 255, 0.3);
  background: rgba(18, 45, 91, 0.88);
}

.node h3 {
  font-size: 1.05rem;
  color: var(--color-text-main);
}

.vault-question-hint {
  width: min(100%, 1100px);
  margin: 1rem auto 1.5rem;
  display: flex;
  justify-content: flex-end;
  position: relative;
  z-index: 2;
}

.vault-question-hint button {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--color-line-strong);
  background: rgba(22, 53, 99, 0.8);
  color: var(--color-text-main);
  font-size: 1.25rem;
  cursor: help;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(1, 7, 18, 0.88);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: rgba(6, 14, 31, 0.98);
  border: 1px solid var(--color-line-strong);
  border-radius: 20px;
  max-width: 620px;
  width: min(92vw, 620px);
  padding: 2rem 1.2rem;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 0.5rem;
  right: 0.7rem;
  background: transparent;
  border: none;
  color: var(--color-text-main);
  font-size: 2rem;
  cursor: pointer;
}

.modal-img {
  width: 100%;
  height: auto;
  margin: 0.9rem 0;
  border: 1px solid var(--color-line-strong);
  border-radius: 12px;
}

.uploads-section {
  padding: 2rem 1rem;
  max-width: 1100px;
  margin: 1.5rem auto 2.4rem;
  position: relative;
  z-index: 2;
  background: var(--color-bg-panel);
  border: 1px solid var(--color-line);
  border-radius: 20px;
}

.uploads-section h2 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  margin-bottom: 1.2rem;
  text-align: center;
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem;
}

.upload-item {
  background: rgba(17, 40, 77, 0.85);
  border: 1px solid var(--color-line-strong);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
}

.upload-item h4 {
  margin-bottom: 0.75rem;
  color: var(--color-text-main);
  font-size: 1rem;
}

.upload-item a {
  display: inline-block;
  background: rgba(47, 100, 180, 0.9);
  color: var(--color-text-main);
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--color-line-strong);
  border-radius: 999px;
}

.upload-item a:hover {
  background: rgba(71, 136, 224, 0.92);
}

.page-container,
.portal-container {
  padding: 2rem 1rem;
  max-width: 960px;
  margin: 1.4rem auto;
  position: relative;
  z-index: 2;
  background: var(--color-bg-panel);
  border: 1px solid var(--color-line);
  border-radius: 20px;
}

.page-container h1,
.portal-container h1 {
  font-size: clamp(1.8rem, 6vw, 3rem);
  margin-bottom: 1rem;
  text-align: center;
}

.content-block {
  margin-bottom: 1.3rem;
  font-size: 1rem;
  color: var(--color-text-main);
  background: var(--color-bg-soft);
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: 12px;
}

.content-block p {
  margin-bottom: 0.9rem;
}

.featured-img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border: 1px solid var(--color-line-strong);
  border-radius: 14px;
  margin-bottom: 1rem;
}

.portal-section {
  margin-bottom: 1.6rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--color-line);
}

.portal-section h2 {
  margin-bottom: 0.7rem;
  font-size: 1.2rem;
}

.portal-form label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--color-text-muted);
}

.portal-form input,
.portal-form select,
.portal-form textarea {
  width: 100%;
  padding: 0.65rem;
  margin-bottom: 0.8rem;
  background: rgba(5, 13, 27, 0.92);
  border: 1px solid var(--color-line);
  color: var(--color-text-main);
  border-radius: 8px;
}

.portal-form button {
  background: rgba(47, 100, 180, 0.92);
  color: var(--color-text-main);
  border: 1px solid var(--color-line-strong);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  text-transform: uppercase;
}

.portal-form button:hover {
  box-shadow: 0 0 14px rgba(89, 168, 255, 0.3);
}

.feed-item {
  padding: 0.9rem;
  margin-bottom: 0.8rem;
  background: rgba(12, 32, 65, 0.78);
  border-left: 2px solid var(--color-accent);
  border-radius: 8px;
}

.feed-item h3 {
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.feed-item a {
  color: #9ccaff;
  text-decoration: underline;
}

.floating-bg-container {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.floating-element {
  position: absolute;
  color: rgba(166, 210, 255, 0.3);
  font-family: var(--font-heading);
  font-weight: 700;
  text-shadow: 0 0 12px rgba(89, 168, 255, 0.28);
  opacity: 0;
  animation: qFadeFloat linear infinite;
}

.big-floating-q {
  position: absolute;
  opacity: 0.1;
  animation: qPulse 8s ease-in-out infinite;
  pointer-events: auto;
  cursor: help;
}

@keyframes qFadeFloat {
  0% { transform: translate3d(0, 40px, 0) scale(0.95); opacity: 0; }
  20% { opacity: 0.24; }
  80% { opacity: 0.16; }
  100% { transform: translate3d(0, -120px, 0) scale(1.12); opacity: 0; }
}

@keyframes qPulse {
  0%, 100% { transform: translateY(0); opacity: 0.08; }
  50% { transform: translateY(-18px); opacity: 0.15; }
}

.floating-key {
  position: absolute;
  pointer-events: none;
  opacity: 0;
  animation: keyFadeFloat linear infinite;
  filter: drop-shadow(0 0 6px rgba(89, 168, 255, 0.4));
}

.floating-key svg {
  width: 100%;
  height: 100%;
}

@keyframes keyFadeFloat {
  0% {
    transform: translate3d(0, 0, 0) rotate(0deg) scale(0.8);
    opacity: 0;
  }
  10% {
    opacity: 0.22;
  }
  50% {
    opacity: 0.15;
  }
  85% {
    opacity: 0.08;
  }
  100% {
    transform: translate3d(var(--drift-x, 30px), -110vh, 0) rotate(var(--spin, 45deg)) scale(1.1);
    opacity: 0;
  }
}

@media (max-width: 900px) {
  .global-nav {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links {
    justify-content: center;
  }

  .audio-toggle {
    align-self: center;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .hero {
    min-height: 64vh;
  }

  .hero-content,
  .page-container,
  .portal-container,
  .uploads-section {
    padding: 1.2rem 0.85rem;
    border-radius: 14px;
    margin-left: 0.6rem;
    margin-right: 0.6rem;
  }

  .btn {
    width: 100%;
    margin: 0.35rem 0;
    text-align: center;
  }

  .nodes-container {
    grid-template-columns: 1fr;
  }

  .vault-question-hint {
    justify-content: center;
  }
}