/* 
  URBAN PREMIUM DESIGN SYSTEM 
  Context: Romain Coach Sportif (Fitness Park x Luxe) 
*/

:root {
  /* COLORS */
  --color-primary: #121212;   /* Matte Black / Carbon */
  --color-secondary: #1E1E24; /* Dark Steel / Graphite */
  --color-accent: #E0AA3E;    /* Amber Gold / Deep Bronze */
  --color-accent-glow: rgba(224, 170, 62, 0.4);
  --color-text-main: #F4F4F5; /* Off-white */
  --color-text-muted: #A1A1AA; /* Silver */
  --color-success: #10B981;

  /* TYPOGRAPHY */
  --font-heading: 'Oswald', sans-serif; /* Strong, vertical, industrial */
  --font-body: 'Inter', sans-serif;     /* Clean, readable */

  /* SPACING */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;

  /* UI ELEMENTS */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --glass-bg: rgba(30, 30, 36, 0.7);
  --glass-border: 1px solid rgba(255, 255, 255, 0.1);
  --shadow-glow: 0 0 20px var(--color-accent-glow);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-primary);
  color: var(--color-text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.1;
  color: white;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s ease;
}

img {
  max-width: 100%;
  display: block;
}

/* UTILITIES */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.text-accent {
  color: var(--color-accent);
}

.section-title {
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-block;
  padding: 1rem 2rem;
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn--primary:hover {
  background: white;
  border-color: white;
}

/* SECTIONS */
section {
  padding: var(--spacing-xl) 0;
}