:root {

  /* Typography */
  --h1: clamp(2.4rem, 4vw + 1rem, 4.5rem);
  --text: clamp(1rem, 0.3vw + 0.95rem, 1.1rem);
  --small: 0.9rem;

  /* Colors */
  --bg-1: #0b1220;
  --bg-2: #121f36;
  --accent: #00d4ff;
  --accent-strong: #00f0ff;
  --text-main: #ffffff;
  --text-soft: #aab4d6;

  /* Effects */
  --radius-xl: 32px;
  --radius-lg: 20px;
  --shadow: 0 40px 80px rgba(0,0,0,0.45);
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;

  background-image: url("cover.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;

  color: var(--text-main);
  min-height: 100vh;

  display: grid;
  place-items: center;

  padding: 2rem;
}
/* HERO CARD */
.main-container {
  width: 100%;
  max-width: 900px;

  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(30px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);

  padding: clamp(2rem, 5vw, 4rem);
  text-align: center;

  box-shadow: var(--shadow);

  animation: fadeIn 0.9s ease;
}

@keyframes fadeIn {
  from {opacity:0; transform:translateY(30px);}
  to {opacity:1; transform:translateY(0);}
}

/* HERO TEXT */
.logo-section h1 {
  font-size: var(--h1);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;

  background: linear-gradient(90deg, #fff, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-section p {
  font-size: var(--text);
  color: var(--text-soft);
  max-width: 600px;
  margin: 0 auto;
}

/* Divider */
.divider {
  width: 140px;
  height: 3px;
  margin: 3rem auto;
  border-radius: 3px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}

/* BUTTON GRID */
.redirect-buttons {
  display: grid;
  gap: 1.8rem;
}

@media (min-width: 768px) {
  .redirect-buttons {
    grid-template-columns: 1fr 1fr;
  }
}

/* BUTTON BASE */
.btn {
  padding: 1.4rem 2rem;
  border-radius: var(--radius-lg);
  font-size: var(--text);
  font-weight: 600;
  text-decoration: none;

  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;

  transition: all 0.25s ease;
  border: 1px solid transparent;
}

/* PRIMARY */
.btn-winter {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #001018;
}

.btn-winter:hover {
  transform: translateY(-6px);
  box-shadow: 0 25px 60px rgba(0,240,255,0.35);
}

/* SECONDARY */
.btn-google {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--text-main);
}

.btn-google:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-6px);
}

/* COUNTDOWN */
.countdown {
  margin-top: 3rem;
  font-size: var(--small);
  color: var(--text-soft);
  opacity: 0.85;
}

/* FOOTER */
footer {
  position: fixed;
  bottom: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-soft);
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* HAMBURGER */
.hamburger {
  position: fixed;
  top: 25px;
  right: 25px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 2000;
}

.hamburger span {
  width: 26px;
  height: 3px;
  background: white;
  border-radius: 3px;
}

/* MENU OVERLAY */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8,15,25,0.96);
  backdrop-filter: blur(25px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.menu-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.menu-overlay a {
  font-size: 1.8rem;
  text-decoration: none;
  color: white;
  transition: color 0.2s ease;
}

.menu-overlay a:hover {
  color: var(--accent);
}

/* Mobile Fine Tuning */
@media (max-width: 480px) {
  body {
    padding: 1rem;
  }

  .main-container {
    padding: 2rem 1.5rem;
  }

  footer {
    position: static;
    margin-top: 2rem;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}