/* ==========================================
   SHELFSMART — CYBERPUNK STYLESHEET
   ========================================== */

:root {
  --bg: #050810;
  --bg-2: #080d1a;
  --cyan: #00f0ff;
  --pink: #ff2d78;
  --purple: #b44fff;
  --yellow: #ffe600;
  --white: #e8eaf0;
  --grey: #4a5068;
  --font-display: 'Orbitron', monospace;
  --font-mono: 'Share Tech Mono', monospace;
  --font-body: 'Rajdhani', sans-serif;
  --glow-cyan: 0 0 10px #00f0ff, 0 0 30px #00f0ff44, 0 0 60px #00f0ff22;
  --glow-pink: 0 0 10px #ff2d78, 0 0 30px #ff2d7844, 0 0 60px #ff2d7822;
  --glow-purple: 0 0 10px #b44fff, 0 0 30px #b44fff44;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  overflow-x: hidden;
  cursor: crosshair;
}

/* SCANLINES */
.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 240, 255, 0.015) 2px,
    rgba(0, 240, 255, 0.015) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

.noise {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9998;
  opacity: 0.4;
}

/* NAV */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 3rem;
  background: rgba(5, 8, 16, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 240, 255, 0.15);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 2px;
  cursor: pointer;
}

.logo-shelf { color: var(--cyan); text-shadow: var(--glow-cyan); }
.logo-smart { color: var(--white); }

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--grey);
  text-decoration: none;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: color 0.2s, text-shadow 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--grey);
  letter-spacing: 1px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00ff88;
  box-shadow: 0 0 8px #00ff88;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8rem 3rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero-content {
  max-width: 600px;
  z-index: 10;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 3px;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
}

.title-line {
  display: block;
  opacity: 0;
  animation: fadeUp 0.6s forwards;
}
.title-line:nth-child(1) { animation-delay: 0.3s; }
.title-line:nth-child(2) { animation-delay: 0.45s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.accent { color: var(--cyan); text-shadow: var(--glow-cyan); }
.accent-pink { color: var(--pink); text-shadow: var(--glow-pink); }

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(232, 234, 240, 0.7);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.75s forwards;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.9s forwards;
}

.btn-primary {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 0.9rem 2rem;
  background: var(--cyan);
  color: var(--bg);
  text-decoration: none;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: all 0.2s;
}

.btn-primary:hover {
  background: var(--white);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn-secondary {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 0.9rem 2rem;
  background: transparent;
  color: var(--cyan);
  text-decoration: none;
  border: 1px solid var(--cyan);
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: all 0.2s;
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  animation: fadeUp 0.6s 1.05s forwards;
}

.stat { text-align: center; }

.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

.stat-unit {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--cyan);
}

.stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--grey);
  letter-spacing: 1px;
  margin-top: 0.25rem;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--cyan), transparent);
}

/* HERO VISUAL */
.hero-visual {
  position: relative;
  width: 400px;
  height: 400px;
  flex-shrink: 0;
  opacity: 0;
  animation: fadeIn 1s 1s forwards;
}

.cyber-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.ring-1 {
  width: 300px;
  height: 300px;
  border-color: rgba(0, 240, 255, 0.3);
  animation: spin 20s linear infinite;
}

.ring-2 {
  width: 220px;
  height: 220px;
  border-color: rgba(180, 79, 255, 0.4);
  border-style: dashed;
  animation: spin 12s linear infinite reverse;
}

.ring-3 {
  width: 140px;
  height: 140px;
  border-color: rgba(255, 45, 120, 0.5);
  animation: spin 8s linear infinite;
}

.cyber-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.3), transparent);
  border: 2px solid var(--cyan);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  box-shadow: var(--glow-cyan), inset 0 0 20px rgba(0, 240, 255, 0.2);
}

@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* SECTIONS */
.section {
  padding: 6rem 3rem;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 3px;
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: 4px;
  margin-bottom: 1rem;
}

.section-sub {
  font-size: 1rem;
  color: rgba(232, 234, 240, 0.6);
  font-family: var(--font-mono);
  letter-spacing: 1px;
}

/* CARDS */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.card {
  background: rgba(8, 13, 26, 0.8);
  border: 1px solid rgba(0, 240, 255, 0.15);
  padding: 2.5rem;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  transition: all 0.3s;
}

.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 0.3s;
}

.card:hover {
  border-color: rgba(0, 240, 255, 0.4);
  background: rgba(0, 240, 255, 0.05);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(0, 240, 255, 0.1);
}

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

.card-icon {
  font-size: 2rem;
  color: var(--cyan);
  margin-bottom: 1.5rem;
  text-shadow: var(--glow-cyan);
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  color: var(--white);
}

.card p {
  font-size: 0.95rem;
  color: rgba(232, 234, 240, 0.65);
  line-height: 1.7;
}

.card-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width 0.4s;
}

.card:hover .card-line { width: 100%; }

/* AURA SECTION */
.aura-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 50%, var(--bg) 100%);
}

.aura-bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(180, 79, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.aura-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1100px;
  margin: 0 auto;
  align-items: center;
}

.aura-feature {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  align-items: flex-start;
}

.feature-num {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--purple);
  text-shadow: var(--glow-purple);
  letter-spacing: 2px;
  flex-shrink: 0;
  margin-top: 3px;
}

.aura-feature h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
  color: var(--white);
}

.aura-feature p {
  font-size: 0.9rem;
  color: rgba(232, 234, 240, 0.6);
  line-height: 1.7;
}

/* TERMINAL */
.aura-terminal {
  background: #020408;
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--glow-cyan), 0 20px 60px rgba(0, 0, 0, 0.5);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(0, 240, 255, 0.05);
  border-bottom: 1px solid rgba(0, 240, 255, 0.1);
}

.t-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.t-dot.red { background: #ff5f57; }
.t-dot.yellow { background: #febc2e; }
.t-dot.green { background: #28c840; }

.t-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--grey);
  letter-spacing: 2px;
  margin-left: auto;
}

.terminal-body {
  padding: 1.5rem;
  min-height: 220px;
}

.t-line {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
  opacity: 0;
  animation: fadeIn 0.3s forwards;
}

.t-line.delay-1 { animation-delay: 0.8s; }
.t-line.delay-2 { animation-delay: 1.4s; }
.t-line.delay-3 { animation-delay: 2s; }
.t-line.delay-4 { animation-delay: 2.6s; }
.t-line.delay-5 { animation-delay: 3.2s; }

.t-prompt { color: var(--purple); margin-right: 0.75rem; }
.t-cmd { color: var(--cyan); }
.t-ok { color: #00ff88; margin-left: 0.5rem; }

.t-cursor {
  color: var(--cyan);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* FOOTER */
.footer {
  background: var(--bg-2);
  border-top: 1px solid rgba(0, 240, 255, 0.1);
  padding: 4rem 3rem 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  max-width: 1100px;
  margin: 0 auto 3rem;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--grey);
  line-height: 1.7;
  max-width: 280px;
}

.footer-links h4,
.footer-status h4 {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--grey);
  text-decoration: none;
  letter-spacing: 1px;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--cyan); }

.sys-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--grey);
  margin-bottom: 0.75rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(0, 240, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--grey);
  letter-spacing: 1px;
  max-width: 1100px;
  margin: 0 auto;
}

/* PAGE HERO (inner pages) */
.page-hero {
  padding: 10rem 3rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero .section-tag { margin-bottom: 1rem; }
.page-hero .section-title { margin-bottom: 1rem; }
.page-hero .section-sub { max-width: 600px; margin: 0 auto; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { flex-direction: column; text-align: center; padding-top: 7rem; }
  .hero-visual { width: 250px; height: 250px; }
  .aura-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero-cta { justify-content: center; }
  .hero-stats { justify-content: center; }
}