/* ============================================================
   RUZIK APPLIANCE REPAIR — MAIN CSS
   Global variables, reset, typography, layout utilities
   ============================================================ */

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
  /* Brand Colors */
  --color-primary:     #0D1F3C;   /* deep navy — trust, professional */
  --color-accent:      #E8500A;   /* burnt orange — energy, action    */
  --color-accent-dark: #C04208;   /* hover state for accent           */
  --color-light:       #F5F7FA;   /* off-white background             */
  --color-white:       #FFFFFF;
  --color-text:        #1A1A2E;   /* near-black for body copy         */
  --color-text-muted:  #5A6478;   /* secondary text                   */
  --color-border:      #DDE2EC;   /* subtle dividers                  */
  --color-success:     #1A9E5C;   /* form success state               */
  --color-error:       #D63B3B;   /* form error state                 */

  /* Typography */
  --font-display: 'Barlow Condensed', sans-serif;  /* headlines       */
  --font-body:    'DM Sans', sans-serif;            /* body copy       */
  --font-mono:    'JetBrains Mono', monospace;      /* code/details    */

  /* Spacing scale (8px base) */
  --space-1:  0.5rem;   /*  8px */
  --space-2:  1rem;     /* 16px */
  --space-3:  1.5rem;   /* 24px */
  --space-4:  2rem;     /* 32px */
  --space-5:  3rem;     /* 48px */
  --space-6:  4rem;     /* 64px */
  --space-7:  6rem;     /* 96px */

  /* Layout */
  --max-width:        1200px;
  --content-width:    760px;
  --border-radius:    6px;
  --border-radius-lg: 12px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(13,31,60,0.08);
  --shadow-md:  0 4px 16px rgba(13,31,60,0.12);
  --shadow-lg:  0 8px 32px rgba(13,31,60,0.16);

  /* Transitions */
  --transition-fast:   0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow:   0.4s ease;
}

/* ── RESET ──────────────────────────────────────────────────── */
*, *::before, *::after {
  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: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover { color: var(--color-accent-dark); }

ul, ol { list-style: none; }

/* ── TYPOGRAPHY ─────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p { margin-bottom: var(--space-2); }
p:last-child { margin-bottom: 0; }

strong { font-weight: 600; }

/* ── LAYOUT UTILITIES ───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

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

.section {
  padding: var(--space-7) 0;
}

.section--gray {
  background-color: var(--color-light);
}

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section--dark h1,
.section--dark h2,
.section--dark h3 {
  color: var(--color-white);
}

/* Grid helpers */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 var(--space-2); }
}

/* Flex helpers */
.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-gap     { gap: var(--space-2); }

/* Text helpers */
.text-center  { text-align: center; }
.text-muted   { color: var(--color-text-muted); }
.text-accent  { color: var(--color-accent); }
.text-white   { color: var(--color-white); }

/* Visibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}