/* ==========================================================================
   SIGN MAX — DESIGN SYSTEM
   Token-driven foundation. Change a value here and it cascades site-wide.
   ========================================================================== */

:root {
  /* ---- Brand colors ---- */
  --smx-primary: #EB1C23;          /* Sign Max red    */
  --smx-primary-600: #c8141a;      /* hover/pressed   */
  --smx-primary-050: #fdecec;      /* tint surface    */
  --smx-secondary: #F89C1C;        /* amber accent    */
  --smx-secondary-600: #d9820a;
  --smx-accent: #005AA9;           /* trust blue      */
  --smx-accent-600: #00488a;

  /* ---- Neutrals ---- */
  /* Body text: brand spec was #7A7A7A but that measures 4.29:1 on white —
     just under WCAG AA (4.5:1). #717171 is visually indistinguishable and
     passes at 4.88:1, satisfying the brief's accessibility requirement. */
  --smx-text: #717171;             /* body text       */
  --smx-text-soft: #7A7A7A;        /* large/secondary text only (brand gray) */
  --smx-ink: #1A1A1A;              /* headings / dark */
  --smx-ink-soft: #3a3a3a;
  --smx-bg: #FFFFFF;               /* page background  */
  --smx-bg-soft: #F8F9FB;          /* section surface  */
  --smx-border: #EAEAEA;
  --smx-border-strong: #d6d6d6;

  /* ---- Semantic ---- */
  --smx-success: #1f9d55;
  --smx-warning: var(--smx-secondary);
  --smx-danger: var(--smx-primary);
  --smx-star: #F89C1C;

  /* ---- Typography ---- */
  --smx-font-head: "Lora", Georgia, "Times New Roman", serif;
  --smx-font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --smx-font-accent: "Lora", Georgia, serif;

  /* Fluid type scale (1.250 major-third), clamped for mobile-first */
  --smx-fs-xs:   clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --smx-fs-sm:   clamp(0.8125rem, 0.78rem + 0.2vw, 0.875rem);
  /* Constant 16px: the old 15px mobile floor broke the 16px readability
     guideline and triggered iOS Safari's auto-zoom on <input> focus. */
  --smx-fs-base: 1rem;
  --smx-fs-md:   clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
  --smx-fs-lg:   clamp(1.25rem, 1.1rem + 0.7vw, 1.5rem);
  --smx-fs-xl:   clamp(1.5rem, 1.25rem + 1.2vw, 2rem);
  --smx-fs-2xl:  clamp(1.875rem, 1.5rem + 1.8vw, 2.75rem);
  --smx-fs-3xl:  clamp(2.25rem, 1.7rem + 2.7vw, 3.75rem);
  --smx-fs-4xl:  clamp(2.75rem, 2rem + 3.6vw, 4.75rem);

  --smx-lh-tight: 1.1;
  --smx-lh-snug: 1.25;
  --smx-lh-base: 1.65;
  --smx-tracking-tight: -0.02em;
  --smx-tracking-wide: 0.08em;

  /* ---- Spacing scale (8pt) ---- */
  --smx-space-1: 0.25rem;
  --smx-space-2: 0.5rem;
  --smx-space-3: 0.75rem;
  --smx-space-4: 1rem;
  --smx-space-5: 1.5rem;
  --smx-space-6: 2rem;
  --smx-space-7: 3rem;
  --smx-space-8: 4rem;
  --smx-space-9: 6rem;
  --smx-space-10: 8rem;

  /* ---- Layout ---- */
  --smx-container: 1340px;
  --smx-container-wide: 1520px;
  --smx-container-narrow: 760px;
  --smx-gutter: clamp(1rem, 4vw, 3rem);
  --smx-header-h: 84px;

  /* ---- Radii ---- */
  --smx-radius-sm: 8px;
  --smx-radius: 14px;
  --smx-radius-lg: 22px;
  --smx-radius-xl: 32px;
  --smx-radius-pill: 999px;

  /* ---- Shadows (premium, soft) ---- */
  --smx-shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.05);
  --smx-shadow-sm: 0 2px 8px rgba(16, 24, 40, 0.06);
  --smx-shadow: 0 8px 24px rgba(16, 24, 40, 0.08);
  --smx-shadow-lg: 0 18px 48px rgba(16, 24, 40, 0.12);
  --smx-shadow-primary: 0 12px 28px rgba(235, 28, 35, 0.25);

  /* ---- Motion ---- */
  --smx-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --smx-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --smx-dur-fast: 0.18s;
  --smx-dur: 0.32s;
  --smx-dur-slow: 0.6s;

  --smx-z-header: 1000;
  --smx-z-overlay: 1100;
  --smx-z-modal: 1200;
}

/* ==========================================================================
   RESET / NORMALIZE (lightweight)
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  font-family: var(--smx-font-body);
  font-size: var(--smx-fs-base);
  line-height: var(--smx-lh-base);
  color: var(--smx-text);
  background: var(--smx-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, picture, svg, video, canvas { max-width: 100%; height: auto; display: block; }
::selection { background: var(--smx-primary); color: #fff; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
ul, ol { list-style: none; padding: 0; }
a { color: var(--smx-accent); text-decoration: none; transition: color var(--smx-dur-fast) var(--smx-ease); }
a:hover { color: var(--smx-primary); }

/* ---- Headings ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--smx-font-head);
  color: var(--smx-ink);
  line-height: var(--smx-lh-tight);
  letter-spacing: var(--smx-tracking-tight);
  font-weight: 600;
}
h1 { font-size: var(--smx-fs-3xl); }
h2 { font-size: var(--smx-fs-2xl); }
h3 { font-size: var(--smx-fs-xl); }
h4 { font-size: var(--smx-fs-lg); }
h5 { font-size: var(--smx-fs-md); }
h6 { font-size: var(--smx-fs-base); }
p { color: var(--smx-text); }
strong, b { color: var(--smx-ink); font-weight: 600; }

/* ==========================================================================
   LAYOUT PRIMITIVES & UTILITIES
   ========================================================================== */
.smx-container { width: 100%; max-width: var(--smx-container); margin-inline: auto; padding-inline: var(--smx-gutter); }
.smx-container--wide { max-width: var(--smx-container-wide); }
.smx-container--narrow { max-width: var(--smx-container-narrow); }
.smx-section { padding-block: var(--smx-space-9); }
.smx-section--soft { background: var(--smx-bg-soft); }
.smx-section--tight { padding-block: var(--smx-space-7); }

.smx-eyebrow {
  display: inline-flex; align-items: center; gap: 0.5em;
  font-family: var(--smx-font-body);
  font-size: var(--smx-fs-sm); font-weight: 600;
  letter-spacing: var(--smx-tracking-wide); text-transform: uppercase;
  color: var(--smx-primary);
}
.smx-eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; display: inline-block; }

.smx-section-head { max-width: 680px; margin-bottom: var(--smx-space-6); }
.smx-section-head--center { margin-inline: auto; text-align: center; }
.smx-section-head h2 { margin-top: var(--smx-space-2); }
.smx-section-head p { margin-top: var(--smx-space-3); font-size: var(--smx-fs-md); }

.smx-grid { display: grid; gap: var(--smx-space-5); }
.smx-grid--2 { grid-template-columns: repeat(2, 1fr); }
.smx-grid--3 { grid-template-columns: repeat(3, 1fr); }
.smx-grid--4 { grid-template-columns: repeat(4, 1fr); }

.smx-text-gradient {
  background: linear-gradient(100deg, var(--smx-primary), var(--smx-secondary));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* Accessibility helpers */
.screen-reader-text {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: var(--smx-z-modal);
  background: var(--smx-ink); color: #fff; padding: 0.75rem 1.25rem; border-radius: 0 0 var(--smx-radius-sm) 0;
}
.skip-link:focus { left: 0; color: #fff; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid var(--smx-accent); outline-offset: 2px; border-radius: 4px;
}

/* Reveal-on-scroll (progressive enhancement; visible by default if no JS) */
.smx-reveal { opacity: 1; }
.js .smx-reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--smx-dur-slow) var(--smx-ease-out), transform var(--smx-dur-slow) var(--smx-ease-out); }
.js .smx-reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .smx-reveal { opacity: 1 !important; transform: none !important; }
}