/* ============================================
   SERVIO LP - DESIGN TOKENS v2
   ============================================
   Brand: Servio s.r.o. (B2C akviziční LP)
   Primary colors extrahovány ze servio.cz
   ============================================ */

:root {
  /* --- BARVY --- */

  /* Primary: Servio navy (#2D3A88 z brand.servio.cz)
     Použití: CTA buttons, headlines accent, trust elements */
  --color-primary: #2D3A88;
  --color-primary-hover: #232D6B;      /* Tmavší pro hover */
  --color-primary-dark: #15244B;       /* Velmi tmavá, pro text na light bg */
  --color-primary-light: #E8EAF6;      /* Velmi jemná, background akcentů */
  --color-primary-ghost: rgba(45, 58, 136, 0.08); /* Pro subtle overlays */

  /* Accent: Servio orange (#EA840A) - STŘÍDMĚ, jen na klíčových akcentech
     Použití: podtržená slova, success checkmark highlights, decorative pravý úhel */
  --color-accent: #EA840A;
  --color-accent-hover: #C06D08;
  --color-accent-light: #FEF3E5;       /* Pozadí orange badge */

  /* Text */
  --color-text: #15244B;               /* Hlavní text - stejný jako primary-dark, konzistentní */
  --color-text-muted: #5A5A5A;         /* Sekundární */
  --color-text-light: #8A8A8A;         /* Drobný, disclaimer */
  --color-text-on-dark: #FFFFFF;       /* Text na navy pozadí */
  --color-text-on-dark-muted: rgba(255, 255, 255, 0.75);

  /* Backgrounds */
  --color-bg: #FFFFFF;
  --color-bg-soft: #FAFAF7;            /* Velmi jemný warm off-white */
  --color-bg-section: #F5F3EE;         /* Teplejší pro alternativní sekce */
  --color-bg-dark: #15244B;            /* Tmavá sekce - social proof bar */

  --color-border: #E5E2DA;             /* Subtle border */
  --color-border-strong: #C9C4B8;      /* Výraznější border */

  /* Signal */
  --color-success: #4B916D;            /* Checkmarks - tlumenější zelená */
  --color-error: #C0392B;
  --color-warning: #EA840A;            /* Stejná jako accent */

  /* --- TYPOGRAFIE --- */
/* Display font: Montserrat - matchuje Servio brand (servio.cz)
     Použití: headlines, section titles
     Weights: 700, 800, 900 pro bold hero headlines */
  --font-display: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Body: Manrope - moderní humanistický sans-serif pro čtení */
  --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Alias pro kompatibilitu se současným kódem */
  --font-primary: var(--font-body);

  /* Velikosti - fluid clamp */
  --fs-hero: clamp(2.5rem, 5vw + 1rem, 4.5rem);     /* Hero headline: 40px → 72px */
  --fs-h1: clamp(2rem, 4vw + 0.5rem, 3rem);         /* 32px → 48px */
  --fs-h2: clamp(1.75rem, 3vw + 0.5rem, 2.5rem);    /* Section: 28px → 40px */
  --fs-h3: clamp(1.25rem, 1.5vw + 0.5rem, 1.625rem); /* Cards: 20px → 26px */
  --fs-lead: clamp(1.0625rem, 0.5vw + 1rem, 1.25rem); /* Lead paragraph */
  --fs-body: 1rem;                                    /* 16px */
  --fs-small: 0.875rem;                               /* 14px */
  --fs-tiny: 0.75rem;                                 /* 12px */

  /* Line heights */
  --lh-tight: 1.1;
  --lh-snug: 1.25;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  /* Weights */
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Letter spacing */
  --ls-tight: -0.02em;
  --ls-tighter: -0.03em;
  --ls-normal: 0;
  --ls-wide: 0.05em;
  --ls-wider: 0.1em;

  /* --- SPACING (8pt grid) --- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;
  --space-16: 8rem;
  --space-20: 10rem;

  --section-py-mobile: var(--space-8);
  --section-py-desktop: var(--space-16);

  --container-max: 1240px;
  --container-narrow: 840px;
  --container-padding: var(--space-5);

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

  /* --- STÍNY - jemné, brand tinted --- */
  --shadow-sm: 0 1px 2px rgba(21, 36, 75, 0.06), 0 1px 3px rgba(21, 36, 75, 0.08);
  --shadow-md: 0 4px 8px rgba(21, 36, 75, 0.06), 0 8px 20px rgba(21, 36, 75, 0.08);
  --shadow-lg: 0 10px 20px rgba(21, 36, 75, 0.08), 0 20px 40px rgba(21, 36, 75, 0.10);
  --shadow-xl: 0 20px 40px rgba(21, 36, 75, 0.10), 0 30px 80px rgba(21, 36, 75, 0.12);

  /* Speciální shadow pro hero form - navy tinted a výrazný */
  --shadow-form: 0 20px 40px rgba(45, 58, 136, 0.12), 0 4px 12px rgba(45, 58, 136, 0.08);

  /* --- ANIMACE --- */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* --- Z-INDEX --- */
  --z-base: 1;
  --z-sticky: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Headlines používají display font */
/* Headlines používají display font (Montserrat, bold) */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--color-text);
}

h1 {
  font-weight: 800;
  letter-spacing: -0.025em;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- LAYOUT PRIMITIVES --- */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--section-py-mobile);
  padding-bottom: var(--section-py-mobile);
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--section-py-desktop);
    padding-bottom: var(--section-py-desktop);
  }
}

.section--soft {
  background: var(--color-bg-soft);
}

.section--accent {
  background: var(--color-bg-section);
}

.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
}

/* --- Eyebrow label (nad headline) --- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

/* --- CTA BUTTON --- */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  min-height: 52px;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.01em;
  color: white;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
  width: 100%;
  box-shadow: 0 1px 3px rgba(21, 36, 75, 0.2);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(45, 58, 136, 0.25);
  color: white;
  text-decoration: none;
}

.btn-primary:active {
  transform: translateY(0);
}

@media (min-width: 768px) {
  .btn-primary {
    width: auto;
    padding: var(--space-4) var(--space-8);
  }
}

/* Secondary button (outline) */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  min-height: 52px;
  font-family: var(--font-body);
  font-weight: var(--fw-semibold);
  color: var(--color-primary);
  background: transparent;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
  text-decoration: none;
}

/* --- FORM INPUTS --- */

.form-input,
.form-select {
  display: block;
  width: 100%;
  padding: var(--space-4);
  min-height: 52px;
  font-family: inherit;
  font-size: var(--fs-body);
  color: var(--color-text);
  background: white;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45, 58, 136, 0.12);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text);
}

.form-group {
  margin-bottom: var(--space-4);
}

/* --- ACCESSIBILITY --- */

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- UTILITY: decorative underline accent --- */
.accent-underline {
  position: relative;
  display: inline-block;
}

.accent-underline::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}