/* Variables globales */
:root {
  --f1-red: #e10600;
  --f1-dark: #15151e;
  --f1-white: #ffffff;
  --f1-gray: #949498;
  --f1-font: 'Formula1', 'Oswald', sans-serif;
  --f1-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --f1-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset y estilos base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body, html {
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  font-family: 'Oswald', Arial, sans-serif;
  background: #111;
}

/* Video de fondo */
.background-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
  background: #000;
  filter: none !important;
}

/* Overlay para mejorar contraste */
.background-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: linear-gradient(180deg,rgba(21,21,30,0.4) 0%,rgba(21,21,30,0.1) 60%,rgba(21,21,30,0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

/* Navbar estilo F1 */
.f1-navbar {
  background-color: rgba(225, 6, 0, 0.95);
  padding: 1rem 2rem;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(10px);
  box-shadow: var(--f1-shadow);
  animation: slideDown 0.5s ease-out;
}

.f1-logo {
  height: 32px;
  transition: var(--f1-transition);
}

.f1-logo:hover {
  transform: scale(1.05);
}

.f1-logo img {
  height: 100%;
  width: auto;
}

.f1-nav-buttons {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.f1-nav-button {
  background: transparent;
  border: 2px solid var(--f1-white);
  color: var(--f1-white);
  padding: 0.6rem 1.5rem;
  font-family: var(--f1-font);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--f1-transition);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.f1-nav-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--f1-white);
  transition: var(--f1-transition);
  z-index: -1;
}

.f1-nav-button:hover {
  color: var(--f1-red);
  transform: translateY(-2px);
}

.f1-nav-button:hover::before {
  left: 0;
}

.f1-nav-button i {
  font-size: 1.1rem;
}

/* Control de audio */
.audio-control {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: rgba(21, 21, 30, 0.8);
  padding: 1rem 1.5rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 1000;
  backdrop-filter: blur(10px);
  box-shadow: var(--f1-shadow);
  transition: var(--f1-transition);
}

.audio-control:hover {
  transform: translateY(-2px);
  background: rgba(21, 21, 30, 0.9);
}

.audio-btn {
  background: transparent;
  border: none;
  color: var(--f1-white);
  cursor: pointer;
  font-size: 1.2rem;
  transition: var(--f1-transition);
  padding: 0.5rem;
  border-radius: 50%;
}

.audio-btn:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.1);
}

#volumeControl {
  width: 100px;
  height: 4px;
  -webkit-appearance: none;
  background: var(--f1-gray);
  border-radius: 2px;
  outline: none;
  transition: var(--f1-transition);
}

#volumeControl::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  background: var(--f1-red);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--f1-transition);
  box-shadow: 0 0 10px rgba(225, 6, 0, 0.5);
}

#volumeControl::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 15px rgba(225, 6, 0, 0.7);
}

/* Animaciones */
@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Loader mejorado */
#loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #111;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out;
}
#loader.fade-out {
  opacity: 0;
  pointer-events: none;
}
.loader-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
#loader-car {
  width: 120px;
  height: auto;
  filter: drop-shadow(0 0 18px #e10600cc);
  animation: pulse 1.5s ease-in-out infinite;
}
.loader-spinner {
  width: 48px;
  height: 48px;
  border: 5px solid #fff;
  border-top: 5px solid #e10600;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 8px;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.loader-text {
  color: #fff;
  font-family: 'Oswald', Arial, sans-serif;
  font-size: 1.3rem;
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  gap: 2px;
}
.loader-text .dot {
  animation: blink 1.2s infinite;
  opacity: 0.5;
}
.loader-text .dot:nth-child(2) { animation-delay: 0.2s; }
.loader-text .dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink {
  0%, 80%, 100% { opacity: 0.5; }
  40% { opacity: 1; }
}

/* Responsive */
@media (max-width: 768px) {
  .f1-navbar {
    padding: 1rem;
  }

  .f1-nav-buttons {
    gap: 1rem;
  }

  .f1-nav-button {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
  }

  .audio-control {
    bottom: 1rem;
    right: 1rem;
    padding: 0.8rem 1.2rem;
  }

  #volumeControl {
    width: 80px;
  }
}

/* --- NAVBAR F1 MODERNA --- */
.f1-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  z-index: 100;
}
.f1-navbar-official {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #e10600;
  padding: 0 40px;
  height: 70px;
  font-family: 'Oswald', Arial, sans-serif;
  box-shadow: none;
  border: none;
}
.f1-logo-official img {
  height: 44px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 0 #e10600);
  transition: transform 0.25s, filter 0.25s;
}
.f1-logo-official:hover img, .f1-logo-official:focus img {
  transform: scale(1.10);
  filter: drop-shadow(0 0 24px #e10600cc);
}
.f1-navbar-right {
  display: flex;
  align-items: center;
  gap: 24px;
}
.f1-nav-btn {
  background: transparent;
  color: #fff;
  border: 1.5px solid #fff;
  border-radius: 4px;
  padding: 10px 28px;
  font-size: 1.1rem;
  font-family: 'Oswald', Arial, sans-serif;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border 0.2s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.5px;
  box-shadow: none;
}
.f1-nav-btn i {
  font-size: 1.2em;
}
.f1-nav-btn:hover, .f1-nav-btn:focus {
  background: #fff;
  color: #e10600;
  border: 1.5px solid #fff;
  box-shadow: 0 2px 16px #e10600cc;
}
.f1-nav-btn-red {
  background: #fff;
  color: #e10600;
  border: 1.5px solid #fff;
}
.f1-nav-btn-red:hover, .f1-nav-btn-red:focus {
  background: #fff;
  color: #e10600;
  border: 1.5px solid #fff;
  box-shadow: 0 2px 16px #e10600cc;
}

/* Reproductor musical discreto */
.music-player {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 320px;
  background: rgba(21, 21, 30, 0.92);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  z-index: 200;
  padding: 16px;
  transition: box-shadow 0.2s;
}
.music-player:hover {
  box-shadow: 0 8px 32px #e1060055;
}

/* Responsive */
@media (max-width: 900px) {
  .music-player { width: 95vw; right: 2.5vw; }
  .f1-navbar-official { padding: 0 10px; }
}
@media (max-width: 600px) {
  .f1-navbar-official {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 0 4vw;
    gap: 8px;
  }
  .f1-navbar-right {
    width: 100%;
    flex-direction: column;
    gap: 8px;
    align-items: stretch;
  }
  .f1-nav-btn, .f1-nav-btn-red {
    width: 100%;
    text-align: left;
    font-size: 1rem;
    padding: 12px 10px;
    box-sizing: border-box;
    justify-content: flex-start;
  }
  .f1-logo-official img { height: 28px; }
  .music-player { width: 98vw; right: 1vw; bottom: 10px; padding: 8px; }
}

#main-content {
  position: relative;
  z-index: 10;
  width: 100vw;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}