:root {
  --navy: #0b2545;
  --navy-dark: #071a33;
  --seafoam: #1fbeaa;
  --seafoam-bright: #7ef9e2;
  --bg-light: #ffffff;
  --text-muted: #6b7c8f;
  --rx: 0deg;
  --ry: 0deg;
}

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

html, body {
  height: 100%;
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-light);
  overflow-x: hidden;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  position: relative;
  text-align: center;
}

#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.mouse-glow {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(
    500px circle at var(--mx, 50%) var(--my, 50%),
    rgba(31, 190, 170, 0.14),
    transparent 60%
  );
}

.page-frame {
  position: fixed;
  inset: 14px;
  border: 2px solid var(--navy);
  border-radius: 18px;
  z-index: 10;
  pointer-events: none;
  box-shadow:
    0 0 0 1px rgba(126, 249, 226, 0.5) inset,
    0 0 40px rgba(11, 37, 69, 0.08);
}

.page-frame::before,
.page-frame::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border: 3px solid var(--seafoam-bright);
}

.page-frame::before {
  top: -3px; left: -3px;
  border-right: none; border-bottom: none;
  border-radius: 18px 0 0 0;
}

.page-frame::after {
  bottom: -3px; right: -3px;
  border-left: none; border-top: none;
  border-radius: 0 0 18px 0;
}

.content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.6rem;
  padding: 2rem;
  animation: fadeInUp 1.1s ease-out;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 3D tilt stage for the logo */
.logo-stage {
  position: relative;
  perspective: 900px;
  padding: 2.2rem 2.8rem;
}

.logo-glow {
  position: absolute;
  inset: -10px;
  background: radial-gradient(circle, rgba(31, 190, 170, 0.28), transparent 70%);
  filter: blur(30px);
  z-index: -1;
  animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.logo-card {
  position: relative;
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transition: transform 0.15s ease-out;
  transform-style: preserve-3d;
  will-change: transform;
  padding: 1.4rem 2.2rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(11, 37, 69, 0.08);
  box-shadow:
    0 20px 60px rgba(11, 37, 69, 0.1),
    0 2px 8px rgba(11, 37, 69, 0.05);
  overflow: hidden;
}

/* Animated sheen sweeping across the logo card (works for both text logo and image logo) */
.logo-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(115deg, transparent, rgba(255, 255, 255, 0.55), rgba(126, 249, 226, 0.35), transparent);
  transform: skewX(-20deg);
  animation: sheenSweep 4.5s ease-in-out infinite;
  pointer-events: none;
  z-index: 3;
}

@keyframes sheenSweep {
  0% { left: -60%; }
  35% { left: 130%; }
  100% { left: 130%; }
}

/* Image logo: floats gently, gains color pop + glow pulse, lifts on hover */
.logo-img {
  position: relative;
  z-index: 1;
  max-width: min(80vw, 480px);
  width: 100%;
  display: block;
  filter: drop-shadow(0 0 30px rgba(31, 190, 170, 0.45)) saturate(1.05);
  animation: logoFloat 5s ease-in-out infinite, logoGlowPulse 3.2s ease-in-out infinite;
  transition: transform 0.4s ease, filter 0.4s ease;
}

.logo-card:hover .logo-img {
  transform: scale(1.035);
  filter: drop-shadow(0 0 45px rgba(31, 190, 170, 0.65)) saturate(1.15);
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@keyframes logoGlowPulse {
  0%, 100% { filter: drop-shadow(0 0 22px rgba(31, 190, 170, 0.35)) saturate(1.05); }
  50% { filter: drop-shadow(0 0 42px rgba(126, 249, 226, 0.6)) saturate(1.15); }
}

.logo-title {
  position: relative;
  font-size: clamp(3rem, 10vw, 6.5rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  background: linear-gradient(120deg, var(--navy) 0%, var(--seafoam) 45%, var(--seafoam-bright) 70%, var(--navy) 100%);
  background-size: 250% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shine 5s linear infinite;
  line-height: 1;
}

@keyframes shine {
  0% { background-position: 0% 50%; }
  100% { background-position: 250% 50%; }
}

.logo-sub {
  font-size: clamp(1.1rem, 3vw, 1.8rem);
  font-weight: 300;
  letter-spacing: 0.4em;
  color: var(--text-muted);
  margin-top: 0.4rem;
  text-transform: lowercase;
}

.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--navy), var(--seafoam-bright));
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(31, 190, 170, 0.5);
}

/* Magnetic button */
.magnet-wrapper {
  display: inline-block;
  padding: 3rem;
  position: relative;
}

.cta-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2.6rem;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #ffffff;
  background: linear-gradient(120deg, var(--navy-dark), var(--navy) 45%, var(--seafoam) 85%, var(--seafoam-bright) 130%);
  border: none;
  border-radius: 50px;
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.18s ease-out, box-shadow 0.35s ease;
  box-shadow: 0 8px 30px rgba(11, 37, 69, 0.22);
  will-change: transform;
}

.cta-btn-inner {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  position: relative;
  z-index: 1;
}

.cta-btn::before {
  content: "";
  position: absolute;
  top: 0; left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.45), transparent);
  transform: skewX(-25deg);
  transition: left 0.6s ease;
}

.cta-btn:hover::before { left: 125%; }

.cta-btn:hover {
  box-shadow: 0 16px 45px rgba(11, 37, 69, 0.4);
}

.cta-btn svg {
  width: 20px;
  height: 20px;
  fill: #ffffff;
}

footer {
  position: absolute;
  bottom: 1.5rem;
  left: 0;
  right: 0;
  z-index: 2;
  color: #a9b6c2;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .page-frame { inset: 8px; border-radius: 14px; }
  .page-frame::before, .page-frame::after { width: 18px; height: 18px; }
  .magnet-wrapper { padding: 1.5rem; }
}

@media (max-width: 480px) {
  .content { gap: 1.9rem; }
  .cta-btn { padding: 0.9rem 2rem; font-size: 0.95rem; }
  .page-frame { inset: 6px; border-radius: 12px; }
  .logo-card { padding: 1rem 1.4rem; }
}

@media (hover: none) and (pointer: coarse) {
  .mouse-glow { display: none; }
  .logo-card { transform: none !important; }
  #particle-canvas { opacity: 0.7; }
}

@media (prefers-reduced-motion: reduce) {
  .logo-title, .logo-glow, .logo-img, .logo-card::after { animation: none; }
  #particle-canvas { display: none; }
}