/* Global readability and micro-interactions */
html { scroll-behavior: smooth; }
body { text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

/* Card hover lift for non-Tailwind contexts (progressive enhancement) */
.card-hover {
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(16, 24, 40, 0.14);
}

/* Soft image enhancement */
.image-soften {
  filter: saturate(1.05) contrast(1.05);
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* Global Design Tokens & System (CSS Variables + Utilities)
   - Fonts aligned with existing SCSS: Rubik (body/UI), Rufina (headings)
   - Colors mapped to assets/scss/_color.scss values to maintain brand consistency
*/

/* Design Tokens */
:root {
  /* Fonts */
  --font-primary: "Rubik", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-secondary: "Rufina", Georgia, "Times New Roman", Times, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Base Typography */
  --fs-base: 16px;
  --lh-base: 1.6;
  --tracking-tight: -0.01em;
  --tracking-normal: 0;
  --tracking-wide: 0.02em;

  /* Responsive Type Scale (clamp for harmony across breakpoints) */
  --fs-h1: clamp(2.2rem, 1.6rem + 2.2vw, 3.2rem);
  --fs-h2: clamp(1.8rem, 1.4rem + 1.4vw, 2.4rem);
  --fs-h3: clamp(1.5rem, 1.25rem + 0.9vw, 2rem);
  --fs-h4: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
  --fs-h5: clamp(1.125rem, 1rem + 0.3vw, 1.375rem);
  --fs-h6: clamp(1rem, 0.95rem + 0.2vw, 1.125rem);

  /* UI Text */
  --fs-button: clamp(0.875rem, 0.82rem + 0.2vw, 1rem);
  --fs-label: clamp(0.875rem, 0.84rem + 0.15vw, 0.95rem);
  --fs-small: 0.875rem;

  /* Colors (mapped from assets/scss/_color.scss) */
  --color-primary: #47a380;     /* $theme-color */
  --color-secondary: #1f2b7b;   /* $theme-color2 */
  --color-accent: #4ae4a4;      /* $theme-color3 */
  --color-accent-2: #ff3500;    /* $theme-color4 */

  --color-heading: #000a2d;     /* $heading-color */
  --color-body: #7a8290;        /* $font_color1 */
  --color-hr: #eceff8;          /* $hr-border-color */

  --color-white: #ffffff;       /* $white */
  --color-black: #16161a;       /* $black */
  --color-gray-100: #f7f7fd;    /* $gray */
  --color-gray-200: #f5f5f5;
  --color-gray-300: #bebebe;

  --color-brand-bg: #f1f4fa;    /* $brand-bg */
  --color-testimonial-bg: #f9fafc; /* $testimonial-bg */
  --color-btn-bg: #000a2d;      /* $btn_bg */

  /* Spacing Scale */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-7: 2rem;     /* 32px */
  --space-8: 3rem;     /* 48px */

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 10px rgba(0,0,0,0.10);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);

  /* Icon sizes */
  --icon-sm: 16px;
  --icon-md: 20px;
  --icon-lg: 24px;
  --icon-xl: 32px;

  /* Container */
  --content-max: 1200px;
  --content-pad: var(--space-5);
}

/* Root Typography & Body */
html {
  font-size: 100%; /* 16px default */
}
body {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--color-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  color: var(--color-heading);
  letter-spacing: var(--tracking-tight);
  margin: 0 0 var(--space-4);
}
h1 { font-size: var(--fs-h1); line-height: 1.2; }
h2 { font-size: var(--fs-h2); line-height: 1.25; }
h3 { font-size: var(--fs-h3); line-height: 1.3; }
h4 { font-size: var(--fs-h4); line-height: 1.35; }
h5 { font-size: var(--fs-h5); line-height: 1.4; }
h6 { font-size: var(--fs-h6); line-height: 1.45; }

p {
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  margin: 0 0 var(--space-4);
}

/* Links */
a {
  color: var(--color-secondary);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
a:hover {
  color: var(--color-primary);
}

/* Container utility */
.container-max {
  max-width: var(--content-max);
  padding-left: var(--content-pad);
  padding-right: var(--content-pad);
  margin-left: auto;
  margin-right: auto;
}

/* Spacing utilities */
.stack-2 { display: grid; gap: var(--space-2); }
.stack-3 { display: grid; gap: var(--space-3); }
.stack-4 { display: grid; gap: var(--space-4); }
.stack-5 { display: grid; gap: var(--space-5); }
.stack-6 { display: grid; gap: var(--space-6); }
.stack-7 { display: grid; gap: var(--space-7); }

/* Color utilities */
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-heading { color: var(--color-heading) !important; }
.text-body { color: var(--color-body) !important; }

.bg-primary { background-color: var(--color-primary) !important; }
.bg-secondary { background-color: var(--color-secondary) !important; }
.bg-accent { background-color: var(--color-accent) !important; }
.bg-brand { background-color: var(--color-brand-bg) !important; }
.bg-gray-100 { background-color: var(--color-gray-100) !important; }
.bg-gray-200 { background-color: var(--color-gray-200) !important; }

/* Border radii */
.radius-sm { border-radius: var(--radius-sm); }
.radius-md { border-radius: var(--radius-md); }
.radius-lg { border-radius: var(--radius-lg); }
.radius-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Icon sizes */
.icon { width: var(--icon-md); height: var(--icon-md); display: inline-block; }
.icon-sm { width: var(--icon-sm); height: var(--icon-sm); }
.icon-lg { width: var(--icon-lg); height: var(--icon-lg); }
.icon-xl { width: var(--icon-xl); height: var(--icon-xl); }

/* Buttons */
.btn {
  font-family: var(--font-primary);
  font-size: var(--fs-button);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  padding: calc(var(--space-2) + 2px) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  line-height: 1;
  text-transform: uppercase;
  cursor: pointer;
}
.btn:focus {
  outline: 2px solid color-mix(in oklab, var(--color-primary) 65%, white 35%);
  outline-offset: 2px;
}
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover {
  background-color: color-mix(in oklab, var(--color-primary) 80%, black 20%);
}
.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
}
.btn-secondary:hover {
  background-color: color-mix(in oklab, var(--color-secondary) 80%, black 20%);
}
.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Cards */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
}
.card-hover:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* Form fields */
label {
  font-size: var(--fs-label);
  color: var(--color-heading);
  font-weight: 500;
}
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
textarea,
select {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  color: var(--color-body);
  background-color: var(--color-white);
  border: 1px solid var(--color-hr);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid color-mix(in oklab, var(--color-secondary) 65%, white 35%);
  outline-offset: 2px;
}

/* Media */
img {
  max-width: 100%;
  height: auto;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}