/* ============================================================
   AURORA AI — style.css
   Color Scheme: #FCDC10 (Gold) · #E5E6E8 (Silver) · #0A0A0C (Void)
   ============================================================ */

/* ===== DESIGN TOKENS ===== */
:root {
  --gold:       #FCDC10;
  --gold-dim:   #c9af0c;
  --silver:     #E5E6E8;
  --silver-dim: #b0b2b6;
  --void:       #0A0A0C;
  --void-2:     #111114;
  --void-3:     #18181c;
  --glass-bg:   rgba(255,255,255,0.04);
  --glass-border: rgba(252,220,16,0.15);
  --text-main:  #E5E6E8;
  --text-dim:   #8a8c91;
  --font-display: 'Bebas Neue', sans-serif;
  --font-ui:    'Syne', sans-serif;
  --font-mono:  'Space Mono', monospace;
  --radius:     12px;
  --section-pad: 120px 0;
  --max-w:      1200px;
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.7, 0, 0.84, 0);
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--void);
  color: var(--text-main);
  font-family: var(--font-ui);
  overflow-x: hidden;
  line-height: 1.6;
  cursor: none;
}
img, canvas, svg { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: none; border: none; background: none; font-family: inherit; }
select, input, textarea { font-family: inherit; }

/* ===== CUSTOM CURSOR ===== */
#cursor {
  position: fixed;
  width: 10px; height: 10px;
  background: var(--gold);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  mix-blend-mode: exclusion;
}
#cursor-follower {
  position: fixed;
  width: 36px; height: 36px;
  border: 1.5px solid var(--gold);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.12s var(--ease-out), width 0.3s, height 0.3s, opacity 0.3s;
  opacity: 0.6;
}
body:has(a:hover, button:hover) #cursor { width: 16px; height: 16px; }
body:has(a:hover, button:hover) #cursor-follower { width: 52px; height: 52px; opacity: 0.3; }

/* ===== TYPOGRAPHY ===== */
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--silver);
}
.section-heading em {
  font-style: normal;
  color: var(--gold);
}
.section-heading.center-head { text-align: center; }
.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
  opacity: 0.8;
}
.body-text {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 1.25rem;
}
.inline-link {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--gold);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: opacity 0.2s;
}
.inline-link:hover { opacity: 0.7; }

/* ===== LAYOUT ===== */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--section-pad);
  padding-left: 1rem;
  padding-right: 1rem;
}
.section-inner.narrow { max-width: 900px; }

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: var(--radius);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  border-radius: 4px;
  font-weight: 700;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s, background 0.2s;
  cursor: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gold);
  color: var(--void);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(252,220,16,0.3);
}
.btn-ghost {
  color: var(--silver);
  border: 1px solid rgba(229,230,232,0.2);
}
.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.btn.full-width { width: 100%; justify-content: center; }

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background 0.4s, backdrop-filter 0.4s;
  padding: 1.5rem 0;
}
#navbar.scrolled {
  background: rgba(10,10,12,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1rem 0;
  border-bottom: 1px solid rgba(252,220,16,0.08);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  display: flex;
  align-items: baseline;
  gap: 0;
}
.nav-logo .logo-a, .nav-logo .logo-u, .nav-logo .logo-r,
.nav-logo .logo-o, .nav-logo .logo-ra, .nav-logo .logo-a2 { color: var(--silver); }
.nav-logo .logo-dot { color: var(--gold); font-size: 0.9em; }
.nav-logo .logo-sub {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-left: 0.5rem;
  align-self: center;
  padding: 2px 6px;
  border: 1px solid var(--gold);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-link:hover { color: var(--silver); }
.nav-cta {
  background: var(--gold);
  color: var(--void) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 3px;
  font-weight: 700;
}
.nav-cta:hover { box-shadow: 0 4px 20px rgba(252,220,16,0.35); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--silver);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ===== HERO ===== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
#aurora-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 120px 1rem 80px;
  width: 100%;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.3s forwards;
}
.tag-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.6); }
}
.hero-title {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 9rem);
  line-height: 0.88;
  letter-spacing: 0.04em;
  margin-bottom: 2rem;
  overflow: hidden;
}
.title-line {
  display: block;
  color: var(--silver);
  opacity: 0;
  transform: translateY(100%);
  animation: slideUp 0.9s var(--ease-out) forwards;
}
.title-line:nth-child(1) { animation-delay: 0.5s; }
.title-line:nth-child(2) { animation-delay: 0.65s; }
.title-line:nth-child(3) { animation-delay: 0.8s; }
.title-line:nth-child(4) { animation-delay: 0.95s; }
.title-line.accent { color: var(--gold); }
.hero-sub {
  max-width: 560px;
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.2s forwards;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.4s forwards;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 1.6s forwards;
}
.stat {
  padding: 0 2.5rem 0 0;
}
.stat-val {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--gold);
  line-height: 1;
}
.stat-unit {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--gold);
}
.stat-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 0.3rem;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(229,230,232,0.15);
  margin: 0 2.5rem 0 0;
  flex-shrink: 0;
}
.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 2s forwards;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== ABOUT ===== */
#about {
  background: var(--void-2);
  position: relative;
  overflow: hidden;
}
#about::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  opacity: 0.3;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  margin-top: 3rem;
}
.about-visual {
  position: relative;
  height: 420px;
}
#about-3d-container {
  width: 100%; height: 100%;
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  overflow: hidden;
}
.about-card {
  position: absolute;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.7s var(--ease-out) var(--delay, 0s) forwards;
}
.about-card:nth-child(2) { bottom: 2rem; left: -1.5rem; }
.about-card:nth-child(3) { top: 2rem; right: -1.5rem; }
.about-card:nth-child(4) { top: 50%; right: -2rem; transform: translateY(-50%); }
.about-card-icon {
  font-size: 1.5rem;
  color: var(--gold);
  line-height: 1;
}
.about-card-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--silver);
  line-height: 1.4;
}

/* ===== TECHNOLOGY ===== */
#technology {
  background: var(--void);
  position: relative;
}
.tech-canvas-wrap {
  width: 100%; height: 200px;
  margin: 3rem 0;
  position: relative;
  overflow: hidden;
}
#tech-canvas { width: 100%; height: 100%; }
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
.tech-card {
  background: var(--void-3);
  border: 1px solid rgba(229,230,232,0.06);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
}
.tech-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 0%, rgba(252,220,16,0.06), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
}
.tech-card:hover { border-color: rgba(252,220,16,0.25); transform: translateY(-4px); }
.tech-card:hover::before { opacity: 1; }
.tech-card-num {
  font-family: var(--font-display);
  font-size: 4rem;
  color: rgba(252,220,16,0.08);
  line-height: 1;
  position: absolute;
  top: 1rem; right: 1.5rem;
  user-select: none;
}
.tech-card-title {
  font-family: var(--font-ui);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--silver);
  margin-bottom: 0.75rem;
  letter-spacing: 0.01em;
}
.tech-card-body {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}
.tech-card-bar {
  height: 3px;
  background: rgba(229,230,232,0.08);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.tech-card-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(to right, var(--gold), var(--gold-dim));
  border-radius: 2px;
  transition: width 1.2s var(--ease-out);
}
.tech-card.animate .tech-card-bar span { width: var(--w); }
.tech-card-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  opacity: 0.7;
}

/* ===== USE CASES ===== */
#usecases {
  background: var(--void-2);
  overflow: hidden;
}
.uc-track-wrap {
  overflow: hidden;
  margin-top: 3rem;
  cursor: grab;
}
.uc-track-wrap:active { cursor: grabbing; }
.uc-track {
  display: flex;
  gap: 1.5rem;
  transition: transform 0.5s var(--ease-out);
  user-select: none;
}
.uc-card {
  flex: 0 0 360px;
  background: var(--void-3);
  border: 1px solid rgba(229,230,232,0.06);
  border-radius: var(--radius);
  padding: 2.25rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease-out);
}
.uc-card:hover { border-color: rgba(252,220,16,0.2); transform: translateY(-4px); }
.uc-card-icon {
  width: 48px; height: 48px;
  color: var(--gold);
  margin-bottom: 1.5rem;
}
.uc-title {
  font-family: var(--font-ui);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--silver);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}
.uc-body {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}
.uc-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(252,220,16,0.3);
  padding: 3px 10px;
  border-radius: 2px;
}
.uc-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
}
.uc-btn {
  width: 40px; height: 40px;
  border: 1px solid rgba(229,230,232,0.2);
  border-radius: 50%;
  color: var(--silver);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  cursor: none;
}
.uc-btn:hover { border-color: var(--gold); color: var(--gold); background: rgba(252,220,16,0.05); }
.uc-dots { display: flex; gap: 0.5rem; }
.uc-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(229,230,232,0.2);
  transition: background 0.3s, transform 0.3s;
  cursor: none;
}
.uc-dot.active { background: var(--gold); transform: scale(1.3); }

/* ===== ADVANTAGE ===== */
#advantage {
  background: var(--void);
  position: relative;
}
.adv-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: center;
  margin-top: 3rem;
}
.adv-big-stat {
  position: relative;
  text-align: center;
  padding: 3rem;
  background: var(--void-3);
  border: 1px solid rgba(252,220,16,0.12);
  border-radius: var(--radius);
  overflow: hidden;
}
#adv-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  opacity: 0.4;
}
.adv-big-number {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 7rem);
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25em;
  color: var(--gold);
  margin-bottom: 1rem;
}
.adv-slash { color: var(--silver); font-size: 0.7em; }
.adv-denom { color: var(--silver); }
.adv-big-label {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.adv-list { display: flex; flex-direction: column; gap: 2rem; }
.adv-item { display: flex; gap: 1.25rem; align-items: flex-start; }
.adv-item-icon {
  font-size: 1.2rem;
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 2px;
  animation: rotateIcon 6s linear infinite;
}
@keyframes rotateIcon {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.adv-item-text strong {
  display: block;
  font-weight: 700;
  color: var(--silver);
  margin-bottom: 0.4rem;
  font-size: 1rem;
}
.adv-item-text p { color: var(--text-dim); font-size: 0.9rem; line-height: 1.65; }

/* ===== NEWSLETTER ===== */
#newsletter {
  background: var(--void-2);
  padding: 80px 0;
}
.nl-wrap {
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.nl-heading {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--silver);
  margin-bottom: 0.75rem;
}
.nl-heading em { font-style: normal; color: var(--gold); }
.nl-text p { font-size: 0.9rem; color: var(--text-dim); }
.nl-form .form-row {
  display: flex;
  gap: 0.75rem;
}
.nl-form input[type="email"] {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(229,230,232,0.12);
  border-radius: 4px;
  padding: 0.85rem 1rem;
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s;
}
.nl-form input:focus { border-color: var(--gold); }

/* ===== CONTACT ===== */
#contact {
  background: var(--void);
  position: relative;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 5rem;
  align-items: start;
  margin-top: 3rem;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}
.contact-detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.contact-detail:hover { color: var(--gold); }
.contact-icon { color: var(--gold); }
.contact-form {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.field-group label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.field-group input,
.field-group select,
.field-group textarea {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(229,230,232,0.1);
  border-radius: 4px;
  padding: 0.8rem 1rem;
  color: var(--silver);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  width: 100%;
  -webkit-appearance: none;
}
.field-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238a8c91' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.field-group select option { background: var(--void-3); color: var(--silver); }
.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  border-color: var(--gold);
  background: rgba(252,220,16,0.03);
}
.field-group textarea { resize: vertical; min-height: 100px; }

/* ===== FORM MESSAGES ===== */
.form-msg {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding-top: 0.5rem;
  min-height: 1.2rem;
}
.form-msg.success { color: #4ade80; }
.form-msg.error { color: #f87171; }

/* ===== FOOTER ===== */
#footer {
  background: var(--void-2);
  border-top: 1px solid rgba(252,220,16,0.08);
  text-align: center;
  padding: 4rem 1rem;
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; }
.footer-logo {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: 0.1em;
  display: inline-flex;
  align-items: baseline;
  margin-bottom: 0.75rem;
}
.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 2rem;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--gold); }
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(138,140,145,0.5);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(100%); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ===== INTERSECTION OBSERVER CLASSES ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-grid, .adv-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-visual { height: 320px; }
  .tech-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .nl-wrap { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
  :root { --section-pad: 80px 0; }
  .nav-links {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10,10,12,0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 1rem; }
  .nav-toggle { display: flex; z-index: 1001; }
  .hero-title { font-size: clamp(2.8rem, 12vw, 6rem); }
  .hero-stats { flex-direction: column; align-items: flex-start; }
  .stat-divider { display: none; }
  .uc-card { flex: 0 0 290px; }
  .nl-form .form-row { flex-direction: column; }
  .adv-grid { gap: 2rem; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 2px; }

/* ===== SELECTION ===== */
::selection { background: rgba(252,220,16,0.25); color: var(--silver); }