@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Paleta Solar & Athletic Los Runners al Sol */
  --color-sun-primary: #FF6B00;
  --color-sun-glow: #FFA000;
  --color-sun-light: #FFD180;
  --color-sun-dark: #D84315;
  --color-gradient-sun: linear-gradient(135deg, #FF6B00 0%, #FFA000 100%);
  --color-gradient-gold: linear-gradient(135deg, #F2994A 0%, #F2C94C 100%);
  --color-gradient-strava: linear-gradient(135deg, #FC4C02 0%, #FF7733 100%);
  --color-gradient-twitter: linear-gradient(135deg, #1DA1F2 0%, #0c85d0 100%);

  /* Fondos y Dark Mode */
  --bg-app: #090d14;
  --bg-surface: #101622;
  --bg-card: #151d2c;
  --bg-card-hover: #1c273a;
  --bg-card-glass: rgba(21, 29, 44, 0.75);
  --bg-input: #0d121c;

  /* Bordes */
  --border-subtle: #212c3f;
  --border-medium: #2f3e58;
  --border-sun: rgba(255, 107, 0, 0.4);

  /* Texto */
  --text-main: #f0f4f8;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-sun: #ff8c33;

  /* Estados y Colores Semánticos */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.15);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.15);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.15);
  --color-info: #38bdf8;
  --color-exact-gold: #facc15;

  /* Tipografías */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Sombras y Luces */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-sun: 0 0 25px rgba(255, 107, 0, 0.35);
  --shadow-gold: 0 0 35px rgba(250, 204, 21, 0.45);

  /* Radios */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transiciones */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(circle at 10% 15%, rgba(255, 107, 0, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 85%, rgba(255, 160, 0, 0.06) 0%, transparent 40%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

a {
  color: var(--text-sun);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-sun-glow);
}

/* Botones Principales */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--color-gradient-sun);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(255, 107, 0, 0.35);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 0, 0.5);
  filter: brightness(1.08);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border-medium);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-card-hover);
  border-color: var(--text-dim);
}

.btn-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: #ffffff;
}

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
}

.btn-icon:hover {
  color: var(--text-main);
  background: var(--bg-card-hover);
}

/* Formularios e Inputs */
.form-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 15px;
  color: var(--text-main);
  font-family: var(--font-body);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-sun-primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.2);
}

.form-input::placeholder {
  color: var(--text-dim);
}

/* Badges / Etiquetas */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-sun {
  background: rgba(255, 107, 0, 0.15);
  color: var(--color-sun-glow);
  border: 1px solid rgba(255, 107, 0, 0.3);
}

.badge-strava {
  background: rgba(252, 76, 2, 0.15);
  color: #fc4c02;
  border: 1px solid rgba(252, 76, 2, 0.3);
}

.badge-twitter {
  background: rgba(29, 161, 242, 0.15);
  color: #1da1f2;
  border: 1px solid rgba(29, 161, 242, 0.3);
}

.badge-gold {
  background: rgba(250, 204, 21, 0.15);
  color: #facc15;
  border: 1px solid rgba(250, 204, 21, 0.4);
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

/* Card Container */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.card:hover {
  border-color: var(--border-medium);
}

.card-glass {
  background: var(--bg-card-glass);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Micro-animaciones */
@keyframes pulseSun {
  0% { transform: scale(1); box-shadow: 0 0 15px rgba(255, 107, 0, 0.4); }
  50% { transform: scale(1.03); box-shadow: 0 0 35px rgba(255, 107, 0, 0.7); }
  100% { transform: scale(1); box-shadow: 0 0 15px rgba(255, 107, 0, 0.4); }
}

@keyframes goldGlow {
  0% { box-shadow: 0 0 20px rgba(250, 204, 21, 0.4); }
  50% { box-shadow: 0 0 50px rgba(250, 204, 21, 0.8), 0 0 80px rgba(255, 107, 0, 0.5); }
  100% { box-shadow: 0 0 20px rgba(250, 204, 21, 0.4); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease forwards;
}