@use "sass:list";

.font-thin { 
  font-weight: 100;
}
.font-extralight { 
  font-weight: 200;
}
.font-light { 
  font-weight: 300;
}
.font-normal { 
  font-weight: 400;
}
.font-medium { 
  font-weight: 500;
}
.font-semibold { 
  font-weight: 600;
}
.font-bold { 
  font-weight: 700;
}
.font-extrabold { 
  font-weight: 800;
}
.font-black { 
  font-weight: 900;
}

.rounded-xs {
  border-radius: 0.125rem; 
}
.rounded-sm {
  border-radius: 0.25rem; 
}
.rounded-md {
  border-radius: 0.375rem; 
}
.rounded-lg {
  border-radius: 0.5rem; 
}
.rounded-xl {
  border-radius: 0.75rem; 
}
.rounded-2xl {
  border-radius: 1rem; 
}
.rounded-3xl {
  border-radius: 1.5rem; 
}
.rounded-4xl {
  border-radius: 2rem; 
}
.rounded-none {
  border-radius: 0;
}
.rounded-full {
  border-radius: calc(infinity * 1px);
}

$base: 0.25rem;

@function spacing($step) {
  @return $step * $base;
}

$spacing-types: (
  "p": "padding",
  "m": "margin",
);

$spacing-variants: (
  "":  (""),
  "x": ("-left", "-right"),
  "y": ("-top",  "-bottom"),
  "t": ("-top"),
  "b": ("-bottom"),
  "l": ("-left"),
  "r": ("-right"),
);

@each $type-prefix, $type in $spacing-types {
  @each $dir-suffix, $sides in $spacing-variants {
    @for $i from 0 through 48 {
      // Whole step: p-0, p-1, p-2 ...
      .#{$type-prefix}#{$dir-suffix}-#{$i} {
        @each $side in $sides {
          #{$type}#{$side}: spacing($i);
        }
      }

      // Half step: p-0\.5, p-1\.5, p-2\.5 ...
      // Stop at 47.5 — 48.5 would exceed the scale
      @if $i < 48 {
        .#{$type-prefix}#{$dir-suffix}-#{$i}\.5 {
          @each $side in $sides {
            #{$type}#{$side}: spacing($i + 0.5);
          }
        }
      }

    }
  }
}

// ─── CSS custom properties ─────────────────────────────────────────────────
:root {
  --spacing:        0.25rem;
  --container-3xs:  16rem;
  --container-2xs:  18rem;
  --container-xs:   20rem;
  --container-sm:   24rem;
  --container-md:   28rem;
  --container-lg:   32rem;
  --container-xl:   36rem;
  --container-2xl:  42rem;
  --container-3xl:  48rem;
  --container-4xl:  56rem;
  --container-5xl:  64rem;
  --container-6xl:  72rem;
  --container-7xl:  80rem;
}

// ─── Shared mixin ──────────────────────────────────────────────────────────
@mixin set-props($props, $value) {
  @each $prop in $props {
    #{$prop}: $value;
  }
}

// ─── Class types ───────────────────────────────────────────────────────────
$class-types: (
  "w":    (width),
  "h":    (height),
  "size": (width, height),
);

// ─── Numeric: w-0 → w-48, h-0 → h-48, size-0 → size-48 ───────────────────
@each $prefix, $props in $class-types {
  @for $i from 0 through 48 {
    .#{$prefix}-#{$i} {
      @include set-props($props, calc(var(--spacing) * #{$i}));
    }
  }
}

// ─── Fractions ─────────────────────────────────────────────────────────────
$fractions: (
  "1\\/2":  (1, 2),
  "1\\/3":  (1, 3),
  "2\\/3":  (2, 3),
  "1\\/4":  (1, 4),
  "2\\/4":  (2, 4),
  "3\\/4":  (3, 4),
  "1\\/5":  (1, 5),
  "2\\/5":  (2, 5),
  "3\\/5":  (3, 5),
  "4\\/5":  (4, 5),
  "1\\/6":  (1, 6),
  "2\\/6":  (2, 6),
  "3\\/6":  (3, 6),
  "4\\/6":  (4, 6),
  "5\\/6":  (5, 6),
  "1\\/12": (1, 12),
  "2\\/12": (2, 12),
  "3\\/12": (3, 12),
  "4\\/12": (4, 12),
  "5\\/12": (5, 12),
  "6\\/12": (6, 12),
  "7\\/12": (7, 12),
  "8\\/12": (8, 12),
  "9\\/12": (9, 12),
  "10\\/12": (10, 12),
  "11\\/12": (11, 12),
);

@each $prefix, $props in $class-types {
  @each $name, $pair in $fractions {
    $num: list.nth($pair, 1);
    $den: list.nth($pair, 2);
    .#{$prefix}-#{$name} {
      @include set-props($props, calc(#{$num} / #{$den} * 100%));
    }
  }
}

// ─── Container sizes (w- only) ─────────────────────────────────────────────
$containers: (
  "3xs", "2xs", "xs", "sm", "md", "lg", "xl",
  "2xl", "3xl", "4xl", "5xl", "6xl", "7xl"
);

@each $name in $containers {
  .w-#{$name} { width: var(--container-#{$name}); }
}

// ─── Shared keywords (auto, px, full, min, max, fit) ───────────────────────
// These are identical in value across w-, h-, and size-
$shared-keywords: (
  "auto": auto,
  "px":   1px,
  "full": 100%,
  "min":  min-content,
  "max":  max-content,
  "fit":  fit-content,
);

@each $prefix, $props in $class-types {
  @each $name, $value in $shared-keywords {
    .#{$prefix}-#{$name} {
      @include set-props($props, $value);
    }
  }
}

// ─── Viewport keywords ─────────────────────────────────────────────────────
// dvw/dvh/lvw/lvh/svw/svh apply equally to w-, h-, and size-
$viewport-keywords: (
  "dvw": 100dvw,
  "dvh": 100dvh,
  "lvw": 100lvw,
  "lvh": 100lvh,
  "svw": 100svw,
  "svh": 100svh,
);

@each $prefix, $props in $class-types {
  @each $name, $value in $viewport-keywords {
    .#{$prefix}-#{$name} {
      @include set-props($props, $value);
    }
  }
}

.w-screen { width:  100vw; }
.h-screen { height: 100vh; }