/* ==========================================================================
   MURAVEN - STYLESHEET DESIGN SYSTEM (Modern Architectural & Construction)
   ========================================================================== */

:root {
  /* Color Palette - Muraven Brand Identity (Navy / Cyan / Magenta) */
  --color-primary: #122330;        /* Głęboki granat z logo */
  --color-primary-light: #1c3548;  /* Średni granat */
  --color-secondary: #284861;      /* Granat z typografii Muraven */
  --color-accent: #d42374;         /* Energetyczna malina/magenta z logo */
  --color-accent-hover: #bb1a63;
  --color-cyan: #24b9c0;           /* Morski turkus/cyan z logo */
  --color-cyan-hover: #1ca2a8;
  --color-bg-light: #f7fafc;
  --color-bg-white: #ffffff;
  --color-card-border: #e2e8f0;
  --color-text-main: #142838;
  --color-text-muted: #5a7182;
  --color-text-light: #8ca0af;
  
  /* Typography */
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-heading: 'Space Grotesk', system-ui, -apple-system, sans-serif;

  /* Elevations & Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(18, 35, 48, 0.08), 0 8px 10px -6px rgba(18, 35, 48, 0.04);
  --shadow-xl: 0 20px 30px -10px rgba(18, 35, 48, 0.12);
  --shadow-glow: 0 0 25px rgba(212, 35, 116, 0.25);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

section[id] {
  scroll-margin-top: 125px;
}

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

/* Layout Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Utility Typography */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
}

p {
  color: var(--color-text-muted);
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 14px 26px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(212, 35, 116, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 35, 116, 0.4);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}