/* ============ SHARED VARIABLES & RESET ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:        #050810;
  --surface:   #0b0f1a;
  --surface2:  #0f1525;
  --glass:     rgba(255,255,255,0.04);
  --border:    rgba(255,255,255,0.07);
  --text:      #e8eaf0;
  --muted:     #6b7280;
  --accent1:   #7c3aed;
  --accent2:   #06b6d4;
  --accent3:   #10b981;
  --warn:      #f59e0b;
  --grad:      linear-gradient(135deg, #7c3aed, #06b6d4);
  --grad2:     linear-gradient(135deg, #06b6d4, #10b981);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius:    16px;
  --radius-lg: 24px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
  line-height: 1.6;
}

/* ============ CURSOR ============ */
#cursor-dot {
  position: fixed; width: 8px; height: 8px;
  background: var(--accent2); border-radius: 50%;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%,-50%);
}
#cursor-ring {
  position: fixed; width: 36px; height: 36px;
  border: 1.5px solid rgba(6,182,212,0.5); border-radius: 50%;
  pointer-events: none; z-index: 9998;
  transform: translate(-50%,-50%);
  transition: width .15s, height .15s, border-color .15s;
}

/* ============ SCROLL PROGRESS ============ */
#scroll-bar {
  position: fixed; top: 0; left: 0; height: 2px;
  background: var(--grad); z-index: 9997; width: 0%;
}

/* ============ NAVBAR ============ */
nav#navbar {
  position: fixed; top: 20px; left: 50%;
  transform: translateX(-50%); z-index: 100;
  display: flex; align-items: center; gap: 40px;
  padding: 13px 28px;
  background: rgba(5,8,16,0.8);
  border: 1px solid var(--border); border-radius: 100px;
  backdrop-filter: blur(24px);
  transition: background .3s, box-shadow .3s;
  white-space: nowrap;
}
nav#navbar.scrolled {
  background: rgba(5,8,16,0.97);
  box-shadow: 0 8px 40px rgba(0,0,0,.5);
}
.nav-logo {
  font-family: var(--font-head); font-weight: 800; font-size: 1.05rem;
  background: var(--grad); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
  text-decoration: none;
}
.nav-links { display: flex; list-style: none; gap: 32px; }
.nav-links a {
  text-decoration: none; color: var(--muted); font-size: .85rem;
  font-weight: 400; letter-spacing: .02em; transition: color .2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-cta {
  padding: 7px 18px;
  background: var(--grad); border-radius: 100px;
  color: #fff !important; font-weight: 500; font-size: .85rem;
  text-decoration: none; transition: opacity .2s, transform .2s;
}
.nav-cta:hover { opacity: .88; transform: scale(1.02); }
.nav-back {
  display: flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: .85rem; text-decoration: none;
  transition: color .2s;
}
.nav-back:hover { color: var(--text); }

/* ============ BUTTONS ============ */
.btn-primary {
  padding: 13px 28px; background: var(--grad); border: none;
  border-radius: 100px; color: #fff; font-family: var(--font-body);
  font-weight: 500; font-size: .9rem; cursor: pointer;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: transform .2s, box-shadow .2s;
  box-shadow: 0 0 32px rgba(124,58,237,.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(124,58,237,.5); }
.btn-outline {
  padding: 13px 28px; background: transparent;
  border: 1px solid var(--border); border-radius: 100px; color: var(--text);
  font-family: var(--font-body); font-weight: 400; font-size: .9rem;
  cursor: pointer; text-decoration: none; display: inline-flex;
  align-items: center; gap: 8px; transition: border-color .2s, background .2s;
}
.btn-outline:hover { border-color: var(--accent2); background: rgba(6,182,212,.06); }

/* ============ REVEAL ANIMATIONS ============ */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ============ SECTION SHARED ============ */
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .73rem; text-transform: uppercase; letter-spacing: .1em;
  color: var(--accent2); font-weight: 600; margin-bottom: 14px;
}
.section-tag::before {
  content: ''; display: block; width: 18px; height: 1px; background: var(--accent2);
}
.section-title {
  font-family: var(--font-head); font-size: clamp(1.9rem,3.5vw,2.8rem);
  font-weight: 800; letter-spacing: -.02em; line-height: 1.15; margin-bottom: 14px;
}
.section-desc {
  color: var(--muted); font-size: 1rem; line-height: 1.7; font-weight: 300;
}
.grad-text {
  background: var(--grad); -webkit-background-clip: text;
  -webkit-text-fill-color: transparent; background-clip: text;
}

/* ============ FOOTER ============ */
.site-footer {
  border-top: 1px solid var(--border); padding: 36px 24px;
  text-align: center; font-size: .78rem; color: var(--muted);
  max-width: 1200px; margin: 0 auto;
}
.site-footer strong { color: var(--text); font-weight: 500; }
.site-footer a { color: var(--accent2); text-decoration: none; }

/* ============ KEYFRAMES ============ */
@keyframes fadeUp {
  from { opacity:0; transform:translateY(20px); }
  to   { opacity:1; transform:none; }
}
@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50%     { opacity:.5; transform:scale(.85); }
}
@keyframes scrollLine {
  0%,100% { opacity:1; transform:scaleY(1) translateY(0); }
  50%     { opacity:.3; transform:scaleY(.5) translateY(8px); }
}

/* ============ RESPONSIVE ============ */
@media (max-width:900px) {
  nav#navbar { gap: 20px; padding: 11px 18px; }
  .nav-links { display: none; }
}