/* ==========================================================================
   ZeroHash (0hash.org) — Design System & Stylesheet
   Philosophy: "0 is where computing begins. Hash is where efficiency begins. We are ZeroHash."
   ========================================================================== */

:root {
  --bg-deep: #030508;
  --bg-surface: #070a11;
  --bg-card: rgba(12, 17, 28, 0.65);
  --bg-card-hover: rgba(18, 25, 42, 0.85);
  
  --cyan-neon: #00f0ff;
  --cyan-dim: #00a8b5;
  --blue-laser: #0072ff;
  --blue-glow: rgba(0, 114, 255, 0.35);
  --silver-white: #f8fafc;
  --silver-muted: #94a3b8;
  --silver-dim: #475569;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(0, 240, 255, 0.45);
  --glow-cyan: 0 0 35px rgba(0, 240, 255, 0.3);
  --glow-subtle: 0 4px 24px rgba(0, 0, 0, 0.6);

  --font-brand: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-snappy: 0.18s cubic-bezier(0.2, 0, 0, 1);
}

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

html {
  font-size: 16px;
  background-color: var(--bg-deep);
  color: var(--silver-white);
  font-family: var(--font-body);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 20%, #080d19 0%, #030508 75%);
  selection-background-color: var(--cyan-neon);
  selection-color: #000;
}

::selection {
  background: var(--cyan-neon);
  color: #000;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Background Atmosphere & Interactive Canvas */
#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.65;
}

.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.38;
  animation: pulseAmbient 12s ease-in-out infinite alternate;
}

.glow-cyan {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.45) 0%, transparent 70%);
  top: 5%;
  left: 50%;
  transform: translateX(-50%);
}

.glow-blue {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, rgba(0, 98, 255, 0.35) 0%, transparent 70%);
  top: 30%;
  left: 20%;
  animation-duration: 18s;
  animation-delay: -4s;
}

.glow-silver {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(226, 232, 240, 0.12) 0%, transparent 70%);
  bottom: 10%;
  right: 15%;
  animation-duration: 15s;
  animation-delay: -8s;
}

@keyframes pulseAmbient {
  0% { transform: scale(1) translate(0, 0); opacity: 0.25; }
  50% { transform: scale(1.15) translate(20px, -20px); opacity: 0.42; }
  100% { transform: scale(0.95) translate(-15px, 25px); opacity: 0.28; }
}

.scanline-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
  background-size: 100% 4px;
  z-index: 1;
  pointer-events: none;
  opacity: 0.35;
}

/* Zen Container: Clean, zero distraction, pure monolithic alignment */
.zen-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

/* Center Hero Section */
.monolith-hero {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 2.75rem;
}

/* 0# Emblem / Logo Presentation */
.emblem-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  perspective: 1200px;
}

.emblem-glow-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.28) 0%, rgba(0, 114, 255, 0.15) 45%, transparent 75%);
  filter: blur(28px);
  pointer-events: none;
  animation: glowBreathe 6s ease-in-out infinite alternate;
}

@keyframes glowBreathe {
  0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.7; }
  100% { transform: translate(-50%, -50%) scale(1.18); opacity: 1; }
}

.emblem-card {
  position: relative;
  width: 190px;
  height: 155px;
  border-radius: 24px;
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 
    0 12px 36px rgba(0, 0, 0, 0.8),
    0 0 24px rgba(0, 240, 255, 0.18),
    inset 0 1px 1px rgba(255, 255, 255, 0.2);
  transition: transform 0.25s ease-out, box-shadow 0.3s ease;
  cursor: pointer;
}

.emblem-card:hover {
  box-shadow: 
    0 18px 48px rgba(0, 0, 0, 0.9),
    0 0 35px rgba(0, 240, 255, 0.4),
    inset 0 1px 2px rgba(255, 255, 255, 0.4);
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  user-select: none;
  pointer-events: none;
  filter: contrast(1.06) brightness(1.02);
}

.emblem-sheen {
  position: absolute;
  inset: -100%;
  background: linear-gradient(
    135deg,
    transparent 35%,
    rgba(255, 255, 255, 0.16) 48%,
    rgba(0, 240, 255, 0.25) 52%,
    transparent 65%
  );
  transform: translateX(-100%);
  pointer-events: none;
  transition: transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}

.emblem-card:hover .emblem-sheen {
  transform: translateX(100%);
}

.status-ticker {
  margin-top: 1rem;
}

.mono-code {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--silver-muted);
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.03);
  padding: 0.25rem 0.85rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* The Core Philosophy Typography */
.philosophy-block {
  max-width: 860px;
  margin: 0 auto;
}

.statement-group {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  align-items: center;
}

.statement-line {
  font-family: var(--font-brand);
  font-size: clamp(1.85rem, 4.2vw, 3.25rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--silver-white);
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.8);
}

.token-bracket {
  color: var(--silver-dim);
  font-family: var(--font-mono);
  font-weight: 300;
  margin: 0 0.15rem;
  opacity: 0.7;
}

.highlight-zero {
  color: var(--cyan-neon);
  font-weight: 700;
  text-shadow: 0 0 24px rgba(0, 240, 255, 0.6);
  display: inline-block;
  transition: transform 0.2s ease;
}

.highlight-zero:hover {
  transform: scale(1.08);
}

.highlight-hash {
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 50%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
  display: inline-block;
  filter: drop-shadow(0 0 16px rgba(255, 255, 255, 0.35));
}

.statement-signature {
  margin-top: 0.85rem;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.6rem;
}

.we-are {
  font-family: var(--font-body);
  font-size: clamp(1.2rem, 2.5vw, 1.85rem);
  font-weight: 300;
  color: var(--silver-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-name {
  font-family: var(--font-brand);
  font-size: clamp(2.2rem, 5.5vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #ffffff 0%, #00f0ff 45%, #0072ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 35px rgba(0, 240, 255, 0.45));
}

.brand-dot {
  color: var(--cyan-neon);
  -webkit-text-fill-color: var(--cyan-neon);
}

/* Official GPG Cryptographic Identity Card */
.gpg-card {
  width: 100%;
  max-width: 560px;
  background: rgba(8, 12, 20, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
  text-align: left;
}

.gpg-card:hover {
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.8), 0 0 24px rgba(0, 240, 255, 0.12);
}

.gpg-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.gpg-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--cyan-neon);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.gpg-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--cyan-neon);
  box-shadow: 0 0 8px var(--cyan-neon);
}

.gpg-header-name {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--silver-white);
  letter-spacing: -0.01em;
}

.gpg-header-email {
  color: var(--silver-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
}

.gpg-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.gpg-fingerprint-box {
  background: #020306;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  padding: 0.95rem 1.15rem;
  cursor: pointer;
  transition: all var(--transition-smooth);
  position: relative;
}

.gpg-fingerprint-box:hover {
  border-color: var(--border-active);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
  transform: translateY(-1px);
}

.fingerprint-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.fingerprint-label {
  font-family: var(--font-brand);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--silver-white);
  letter-spacing: -0.01em;
}

.gpg-copy-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan-neon);
  background: rgba(0, 240, 255, 0.08);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 240, 255, 0.25);
  transition: all var(--transition-snappy);
}

.gpg-fingerprint-box:hover .gpg-copy-badge {
  background: var(--cyan-neon);
  color: #020306;
}

.fingerprint-code {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--silver-white);
  letter-spacing: 0.09em;
  user-select: all;
  line-height: 1.35;
}

.fingerprint-code span:first-child {
  color: #cbd5e1;
}

.fingerprint-code span:last-child {
  color: var(--cyan-neon);
  font-weight: 600;
}

.gpg-actions {
  display: flex;
  gap: 0.75rem;
}

.gpg-action-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 0.55rem 0.85rem;
  color: var(--silver-muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-snappy);
}

.gpg-action-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--cyan-dim);
  color: var(--silver-white);
}

.action-icon {
  width: 14px;
  height: 14px;
  color: var(--cyan-neon);
}

/* Public Key Modal Pop-up */
.key-dialog {
  border: none;
  background: transparent;
  padding: 0;
  max-width: 560px;
  width: 90vw;
  margin: auto;
  position: fixed;
  inset: 0;
  z-index: 100;
}

.key-dialog::backdrop {
  background: rgba(3, 5, 8, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.key-modal-surface {
  background: #080d18;
  border: 1px solid rgba(0, 240, 255, 0.35);
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9), 0 0 35px rgba(0, 240, 255, 0.2);
  color: var(--silver-white);
  animation: keyModalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@keyframes keyModalPop {
  0% { transform: scale(0.94); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.key-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.key-modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.key-modal-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  color: var(--cyan-neon);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  font-weight: 700;
}

.key-modal-title {
  font-family: var(--font-brand);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--silver-white);
}

.key-modal-close {
  background: transparent;
  border: none;
  color: var(--silver-muted);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  transition: color var(--transition-snappy);
}

.key-modal-close:hover {
  color: var(--cyan-neon);
}

.key-modal-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--silver-dim);
}

.meta-dot {
  opacity: 0.4;
}

.key-modal-pre {
  margin: 0;
  background: #020306;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--silver-muted);
  overflow-x: auto;
  max-height: 240px;
  white-space: pre;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.6);
}

.key-modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

.modal-act-btn {
  background: var(--cyan-neon);
  border: 1px solid var(--cyan-neon);
  color: #030508;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.55rem 1.15rem;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-snappy);
}

.modal-act-btn:hover {
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
  transform: translateY(-1px);
}

.modal-act-btn.secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--silver-white);
  font-weight: 500;
}

.modal-act-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--cyan-neon);
  color: var(--cyan-neon);
}

/* Clean GitHub Portal ("just keep github for now username 0hash-org") */
.portal-section {
  width: 100%;
  max-width: 540px;
  margin-top: 0.5rem;
  display: flex;
  justify-content: center;
}

.github-portal-card {
  position: relative;
  width: 100%;
  background: rgba(10, 15, 26, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 1.25rem 1.6rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  text-decoration: none;
  color: var(--silver-white);
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.65);
  transition: all var(--transition-smooth);
}

.github-portal-card:hover {
  background: rgba(16, 23, 38, 0.9);
  border-color: var(--border-active);
  transform: translateY(-3px);
  box-shadow: 
    0 20px 45px rgba(0, 0, 0, 0.8),
    0 0 28px rgba(0, 240, 255, 0.28);
}

.github-edge {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan-neon) 50%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.github-portal-card:hover .github-edge {
  opacity: 1;
}

.github-icon-wrap {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-smooth);
}

.github-portal-card:hover .github-icon-wrap {
  background: rgba(0, 240, 255, 0.12);
  border-color: var(--cyan-neon);
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.3);
}

.github-svg {
  width: 24px;
  height: 24px;
  color: var(--silver-white);
  transition: transform var(--transition-smooth), color var(--transition-smooth);
}

.github-portal-card:hover .github-svg {
  color: var(--cyan-neon);
  transform: scale(1.08);
}

.github-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  text-align: left;
}

.github-subhead {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.github-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  font-weight: 700;
  color: var(--cyan-neon);
  background: rgba(0, 240, 255, 0.08);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 240, 255, 0.2);
}

.github-handle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--silver-dim);
  letter-spacing: 0.06em;
}

.github-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.github-title {
  font-family: var(--font-brand);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--silver-white);
}

.github-arrow {
  font-size: 1.25rem;
  color: var(--silver-dim);
  transition: transform var(--transition-smooth), color var(--transition-smooth);
}

.github-portal-card:hover .github-arrow {
  color: var(--cyan-neon);
  transform: translate(3px, -3px);
}

/* Zen Footer - 2026 Copyright */
.zen-footer {
  width: 100%;
  max-width: 960px;
  margin-top: 3.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.copyright-text {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--silver-dim);
  letter-spacing: 0.08em;
  opacity: 0.75;
  transition: opacity var(--transition-smooth), color var(--transition-smooth);
}

.copyright-mark {
  color: var(--cyan-neon);
  margin-right: 0.15rem;
}

.copyright-text:hover {
  opacity: 1;
  color: var(--silver-muted);
}



/* Responsive adjustments */
@media (max-width: 768px) {
  .zen-container {
    padding: 1.5rem 1rem 2rem 1rem;
  }
  
  .monolith-hero {
    gap: 2rem;
  }

  .statement-line {
    font-size: 1.65rem;
  }

  .brand-name {
    font-size: 2.4rem;
  }

  .emblem-card {
    width: 150px;
    height: 122px;
  }

  .zen-footer {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
}