/*
Theme Name: riawallin
Theme URI:
Author: Räikee Oy
Author URI:
Description: A modern agency starter theme built with block editor patterns and theme.json.
Version: 1.0.12
Requires at least: 6.4
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: agency-base
Tags: block-patterns, block-styles, full-site-editing, wide-blocks
*/

/* ==========================================================================
   Layer Declarations
   ========================================================================== */

/*
   Cascade layers ensure predictable specificity. Layers are applied in order:

   1. reset     — Browser resets + box-sizing normalization (in this file)
   2. wpglobal  — WordPress global styles (auto-wrapped via functions.php for cascade control)
   3. base      — Global element defaults (in this file)
   4. tokens    — Design system tokens via CSS custom properties (in this file)
   5. header    — Header/navigation styles (see assets/css/header.css)
   6. components — Reusable component styles (see styles/blocks/core/*.css)
   7. utilities — Helper & utility classes (in this file)
   8. overrides — High-specificity client overrides (add your custom CSS here)

   Note: reset, base, tokens, and utilities are defined in this file.
   wpglobal layer wraps WP's global-styles-inline-css to make it overridable by other layers.
   header styles live in assets/css/header.css (enqueued via functions.php).
   Block-specific CSS lives in styles/blocks/core/ (auto-enqueued via functions.php).
*/

/* Layer order is also declared early in functions.php (wp_head priority 1) to ensure
   wpglobal is positioned correctly before WordPress outputs global-styles-inline-css.
   If you change this order, update functions.php to match.

   wpglobal is the @layer wrapper for WP's global-styles-inline-css (see functions.php
   wp_print_styles hook). Because it's named and positioned early, any layer declared
   after it (base → overrides) can override WP layout rules — including .is-layout-flow
   blockGap margins — without !important. */
@layer reset, wpglobal, base, tokens, header, components, utilities, overrides;

/* ==========================================================================
   Reset
   ========================================================================== */

@layer reset {
  /* 1. Use a more-intuitive box-sizing model + 2. Remove default margin */
  * {
    box-sizing: border-box;

    &::before,
    &::after {
      box-sizing: border-box;
    }

    &:not(dialog) {
      margin: 0;
    }
  }

  /* 3. Enable keyword animations + 4. Accessible line-height + 5. Text rendering */
  html {
    @media (prefers-reduced-motion: no-preference) {
      interpolate-size: allow-keywords;
    }
  }

  body {
    line-height: var(--wp--custom--line-height--normal, 1.5);
    -webkit-font-smoothing: antialiased;
  }

  /* 6. Improve media defaults */
  :is(img, picture, video, canvas, svg) {
    display: block;
    max-inline-size: 100%;
  }

  /* 7. Inherit fonts for form controls */
  :is(input, button, textarea, select) {
    font: inherit;
  }

  /* 8. Avoid text overflows + 9. Improve line wrapping */
  :is(p, h1, h2, h3, h4, h5, h6) {
    overflow-wrap: break-word;
  }

  p {
    text-wrap: pretty;
  }

  :is(h1, h2, h3, h4, h5, h6) {
    text-wrap: balance;
  }

  /* 10. Create a root stacking context */
  :is(#root, #__next) {
    isolation: isolate;
  }
}

/* ==========================================================================
   Base
   ========================================================================== */

@layer base {
  :where(a) {
    color: inherit;
  }

  :where(ul, ol) {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  /* Flow/constrained layout spacing — override wpglobal blockGap defaults.
     WP applies margin-block-start to ALL layout children (both .is-layout-flow and
     .is-layout-constrained). We restore spacing only for content-level elements so
     container blocks (group, cover, columns, template-part) stay at 0.

     Covers both block editor classes (.wp-block-*) and plain HTML elements —
     post content outputs bare <p>/<blockquote> etc. with no block class.
     Excludes :first-child to avoid unwanted top margin at the start of a container. */
  :is(.is-layout-flow, .is-layout-constrained)
    > :where(
      p,
      h1,
      h2,
      h3,
      h4,
      h5,
      h6,
      blockquote,
      ul,
      ol,
      figure,
      hr,
      .wp-block-paragraph,
      .wp-block-heading,
      .wp-block-list,
      .wp-block-quote,
      .wp-block-pullquote,
      .wp-block-image,
      .wp-block-gallery,
      .wp-block-buttons,
      .wp-block-table,
      .wp-block-separator
    ):not(:first-child) {
    margin-block-start: var(--wp--preset--spacing--40);
  }

  /* Skip link — visible on focus only */
  .skip-link {
    position: absolute;
    inset-inline-start: -9999px;
    z-index: var(--wp--custom--z-index--toast, 400);
    padding-block: 0.5em;
    padding-inline: 1em;
    background: var(--wp--preset--color--contrast, #0f172a);
    color: var(--wp--preset--color--base, #fff);
    text-decoration: none;
    font-weight: 700;

    &:focus {
      inset-inline-start: 0;
      inset-block-start: 0;
    }
  }
}

/* ==========================================================================
   Tokens — Derived colors & semantic aliases via CSS Relative Colors (RCS)
   All values here are derived from theme.json palette entries using oklch()
   relative color syntax. Swapping hex values in theme.json auto-propagates.
   ========================================================================== */

/*
   QUICK REFERENCE — CSS Custom Properties (All Sources)
   ================================================

   COLOR PALETTE (from theme.json)
   —— Preset colors (use in blocks):
   --wp--preset--color--{primary, accent, secondary, base, contrast, subtle, muted}

   —— Derived states (hover, active, subtle, alpha scales):
   --color-{primary,accent,secondary}-hover           (lighten +15%)
   --color-{primary,accent,secondary}-active          (darken -15%)
   --color-{primary,accent}-subtle                    (light tint, 50% alpha)
   --color-{primary,accent,base,contrast}-alpha-{10,20,50,80}  (transparency scales)

   —— Status colors (contextual messages):
   --color-{success,warning,error,info}              (main color)
   --color-{success,warning,error,info}-subtle       (light variant)

   SEMANTIC SURFACES
   --color-surface                 (card backgrounds)
   --color-surface-raised          (slightly elevated)
   --color-surface-overlay         (semi-transparent overlay)
   --color-surface-sunken          (indented area)
   --color-surface-scrim           (semi-transparent dark layer)

   BORDERS & FOCUS
   --color-border                  (subtle dividers)
   --color-border-strong           (prominent dividers)
   --color-border-interactive      (interactive elements)
   --focus-ring                    (2px solid primary color)
   --focus-ring-offset             (2px)

   Z-INDEX (from theme.json — keep minimal)
   --wp--custom--z-index--sticky   (200 — header)
   --wp--custom--z-index--dropdown (300 — menus)
   --wp--custom--z-index--overlay  (250 — overlays)
   --wp--custom--z-index--modal    (300 — modals)
   --wp--custom--z-index--toast    (400 — notifications)

   TRANSITIONS (from theme.json — use timing + easing separately for flexibility)
   --wp--custom--transition--fast  (150ms ease — shorthand, use for simple transitions)
   --wp--custom--transition--normal (300ms ease — shorthand, use for simple transitions)
   --wp--custom--transition--slow  (500ms ease — shorthand, use for simple transitions)

   TIMING (compose with easing for complex multi-property transitions)
   --wp--custom--timing--fast      (150ms)
   --wp--custom--timing--normal    (300ms)
   --wp--custom--timing--slow      (500ms)

   EASING (use with timing for granular control)
   --wp--custom--easing--standard  (ease — standard, smooth)
   --wp--custom--easing--in        (ease-in — slow start)
   --wp--custom--easing--out       (ease-out — slow end)
   --wp--custom--easing--inOut     (cubic-bezier custom — smooth both ends)

   TYPOGRAPHY (from theme.json)
   --wp--preset--font-family--{heading, body}
   --wp--preset--font-size--{small, medium, large, x-large, 2x-large, 3x-large, 4x-large}
   --wp--custom--line-height--{tight, normal, relaxed}
   --wp--custom--letter-spacing--{tight, normal, wide}

   SPACING (from theme.json, increments 10–100)
   --wp--preset--spacing--{10, 20, 30, 40, 50, 60, 70, 80, 90, 100}

   SHADOWS (from theme.json)
   --wp--preset--shadow--{sm, md, lg, xl, inner}

   BORDER RADIUS (from theme.json)
   --wp--preset--border--radius--{small, medium, large, full}

   LAYOUT (from theme.json)
   --wp--style--global--content-size  (800px — main content width)
   --wp--style--global--wide-size     (1200px — wide section width)

   Note: WordPress preset variables are auto-generated from theme.json.
   Custom theme variables (--wp--custom--*) are defined in theme.json settings.custom.
*/

@layer tokens {
  :root {
    /* ----- Primary: hover / active / subtle ----- */
    --color-primary-hover: oklch(
      from var(--wp--preset--color--primary) calc(l + 0.15) c h
    );
    --color-primary-active: oklch(
      from var(--wp--preset--color--primary) calc(l - 0.15) c h
    );
    --color-primary-subtle: oklch(
      from var(--wp--preset--color--primary) calc(l + 0.45) c h / 0.5
    );

    /* ----- Accent: hover / active / subtle ----- */
    --color-accent-hover: oklch(
      from var(--wp--preset--color--accent) calc(l + 0.15) c h
    );
    --color-accent-active: oklch(
      from var(--wp--preset--color--accent) calc(l - 0.15) c h
    );
    --color-accent-subtle: oklch(
      from var(--wp--preset--color--accent) calc(l + 0.45) c h / 0.5
    );

    /* ----- Secondary: hover ----- */
    --color-secondary-hover: oklch(
      from var(--wp--preset--color--secondary) calc(l + 0.15) c h
    );

    /* ----- Primary: transparency scale ----- */
    --color-primary-alpha-10: oklch(
      from var(--wp--preset--color--primary) l c h / 0.1
    );
    --color-primary-alpha-20: oklch(
      from var(--wp--preset--color--primary) l c h / 0.2
    );
    --color-primary-alpha-50: oklch(
      from var(--wp--preset--color--primary) l c h / 0.5
    );

    /* ----- Accent: transparency scale ----- */
    --color-accent-alpha-10: oklch(
      from var(--wp--preset--color--accent) l c h / 0.1
    );
    --color-accent-alpha-20: oklch(
      from var(--wp--preset--color--accent) l c h / 0.2
    );
    --color-accent-alpha-50: oklch(
      from var(--wp--preset--color--accent) l c h / 0.5
    );

    /* ----- Contrast: transparency scale (overlays, borders, scrims) ----- */
    --color-contrast-alpha-5: oklch(
      from var(--wp--preset--color--contrast) l c h / 0.05
    );
    --color-contrast-alpha-10: oklch(
      from var(--wp--preset--color--contrast) l c h / 0.1
    );
    --color-contrast-alpha-20: oklch(
      from var(--wp--preset--color--contrast) l c h / 0.2
    );
    --color-contrast-alpha-50: oklch(
      from var(--wp--preset--color--contrast) l c h / 0.5
    );
    --color-contrast-alpha-80: oklch(
      from var(--wp--preset--color--contrast) l c h / 0.8
    );

    /* ----- Base: transparency scale (light overlays on dark bgs) ----- */
    --color-base-alpha-10: oklch(
      from var(--wp--preset--color--base) l c h / 0.1
    );
    --color-base-alpha-20: oklch(
      from var(--wp--preset--color--base) l c h / 0.2
    );
    --color-base-alpha-50: oklch(
      from var(--wp--preset--color--base) l c h / 0.5
    );

    /* ----- Semantic: surfaces ----- */
    --color-surface: var(--wp--preset--color--base);
    --color-surface-raised: var(--wp--preset--color--subtle);
    --color-surface-overlay: oklch(
      from var(--wp--preset--color--contrast) calc(l - 0.02) c h / 0.97
    );
    --color-surface-sunken: oklch(
      from var(--wp--preset--color--contrast) calc(l - 0.04) c h / 0.94
    );
    --color-surface-scrim: var(--color-contrast-alpha-50);

    /* ----- Semantic: borders ----- */
    --color-border: var(--color-contrast-alpha-10);
    --color-border-strong: var(--color-contrast-alpha-20);
    --color-border-interactive: var(--wp--preset--color--primary);
    --color-border-focus: var(--wp--preset--color--primary);

    /* ----- Semantic: focus ring ----- */
    --color-focus-ring: var(--wp--preset--color--primary);
    --focus-ring: 2px solid var(--color-focus-ring);
    --focus-ring-offset: 2px;

    /* ----- Status: hex fallbacks (overridden to OKLCH below) ----- */
    --color-success: #16a34a;
    --color-warning: #ca8a04;
    --color-error: #dc2626;
    --color-info: #2563eb;
  }

  /* OKLCH enhancement for status colors + derive subtle variants via relative colors */
  @supports (color: oklch(0% 0 0)) {
    :root {
      --color-success: oklch(55% 0.18 150);
      --color-success-subtle: oklch(
        from var(--color-success) calc(l + 0.42) c h
      );
      --color-warning: oklch(70% 0.16 85);
      --color-warning-subtle: oklch(
        from var(--color-warning) calc(l + 0.27) c h
      );
      --color-error: oklch(55% 0.22 28);
      --color-error-subtle: oklch(from var(--color-error) calc(l + 0.42) c h);
      --color-info: oklch(55% 0.2 260);
      --color-info-subtle: oklch(from var(--color-info) calc(l + 0.42) c h);
    }
  }
}

/* ==========================================================================
   Header
   ========================================================================== */

@layer header {
  .wp-block-template-part:has(.site-header) {
    position: fixed;
    inset-block-start: 0;
    inline-size: 100%;
    z-index: var(--wp--custom--z-index--sticky, 200);
  }

  .site-header {
    background: transparent;
    transition: background var(--wp--custom--timing--normal);
  }

  .site-header.is-stuck {
    background: var(--wp--preset--color--base);
    box-shadow: var(--wp--preset--shadow--md);
  }
}

/* ==========================================================================
   Utilities
   ========================================================================== */

@layer utilities {
  /* Visually hidden but accessible to screen readers */
  .screen-reader-text {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
  }

  /* Text color utilities mapped to token scale */
  .has-muted-text {
    color: var(--wp--preset--color--muted, #64748b);
  }

  .has-success-text {
    color: var(--color-success, #16a34a);
  }

  .has-warning-text {
    color: var(--color-warning, #ca8a04);
  }

  .has-error-text {
    color: var(--color-error, #dc2626);
  }

  /* Raised surface with shadow */
  .has-raised-surface {
    background: var(--color-surface, #fff);
    box-shadow: var(--wp--preset--shadow--md);
    border-radius: var(--wp--preset--border--radius--medium, 0.5rem);
  }

  .hienolista {
    li {
      margin-block-start: 10px;

      &::before {
        content: "✓";
        color: var(--wp--preset--color--primary);
        font-weight: 700;
        margin-inline-end: 0.5em;
      }
    }
  }
}

/* ==========================================================================
   Styles outside @layer so they're globally accessible
   ========================================================================== */

main {
  &,
  & > * {
    margin-block-start: 0;
  }
}

@keyframes clipPathCircleOpen {
  0% {
    clip-path: circle(0% at top right);
  }
  100% {
    clip-path: circle(250% at top right);
  }
}

@keyframes clipPathCircleClose {
  0% {
    clip-path: circle(250% at top right);
  }
  100% {
    clip-path: circle(0% at top right);
  }
}

/* ==========================================================================
   Overrides — high-specificity fixes for cascade conflicts
   ========================================================================== */

@layer overrides {
  /* ----- Contrast: muted text on dark backgrounds -----
     `muted` (#8a7a73) on `contrast` (#2a1f1c) = 3.89:1 — fails WCAG AA (4.5:1).
     When `.has-muted-color` appears inside a contrast-background container
     (footer), override to `base` (#ebded4 on #2a1f1c = ~8.5:1). */
  .has-contrast-background-color .has-muted-color {
    color: var(--wp--preset--color--base);
  }

  /* ----- Hyphenation: prevent mid-word breaks on Finnish long compounds -----
     Applied to headings in content-width contexts (not the hero wordmark which
     is an image). `text-wrap: balance` (set in reset) is kept. */
  .is-layout-constrained :is(h1, h2, h3, h4, h5, h6),
  .is-layout-flow :is(h1, h2, h3, h4, h5, h6),
  .wp-block-column :is(h1, h2, h3, h4, h5, h6) {
    hyphens: auto;
    /* Balance is already set in reset; hyphenation fills the remaining gap */
    overflow-wrap: break-word;
  }
}

/* ── Service-page gallery: reliable cropped grid, 2-col mobile → 3-col ≥600px.
   Unlayered to beat core's unlayered .wp-block-gallery-is-layout-flex (no !important).
   Shared by Henkilö- + Yritysasiakkaille (class `palvelut-gallery`). ── */
.wp-block-gallery.palvelut-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--wp--preset--spacing--20);
  margin-block: var(--wp--preset--spacing--60);
}
@media (min-width: 600px) {
  .wp-block-gallery.palvelut-gallery { grid-template-columns: repeat(3, 1fr); }
}
.wp-block-gallery.palvelut-gallery figure.wp-block-image { margin: 0; }
.wp-block-gallery.palvelut-gallery figure.wp-block-image img {
  display: block;
  inline-size: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}
/* Service-page intro: photo above text on mobile */
@media (max-width: 599px) {
  .palvelut-intro-columns .wp-block-column:last-child { order: -1; }
}

/* ==========================================================================
   Etusivu (front page) — net-new, photo-forward components.
   Hero is an asymmetric split (solid ink panel + full-bleed photo) so the
   cream wordmark always sits on ink (~12:1), never bare over a bright photo
   (the cream-on-bright-photo contrast trap, sister-page 2.07:1). Cards are
   image-led with a guaranteed-dark label scrim; hover BRIGHTENS, never darkens.
   ========================================================================== */

@layer components {
  /* ----- Hero: asymmetric split ----- */
  .etusivu-hero {
    display: grid;
    grid-template-columns: 1fr;
    min-block-size: 100svh;
    background: var(--wp--preset--color--contrast);
  }

  @media (min-width: 782px) {
    .etusivu-hero {
      grid-template-columns: 1fr 1fr;
      min-block-size: clamp(34rem, 88svh, 52rem);
    }
  }

  /* Panel: holds wordmark + positioning line + CTA. Top padding clears the
     fixed header. Cream content lives on ink — bulletproof contrast. */
  .etusivu-hero__panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--wp--preset--spacing--50);
    padding-block: var(--wp--preset--spacing--90) var(--wp--preset--spacing--80);
    padding-inline: clamp(var(--wp--preset--spacing--50), 6vw, var(--wp--preset--spacing--90));
    background: var(--wp--preset--color--contrast);
    color: var(--wp--preset--color--base);
  }

  /* h1 wraps the wordmark image (logo-as-h1, alt carries the text). Strip the
     inherited heading box so only the image shows. */
  .etusivu-hero__h1 {
    margin: 0;
    line-height: 0;
  }

  .etusivu-hero__wordmark {
    inline-size: min(100%, 26rem);
    height: auto;
    margin: 0;
  }

  .etusivu-hero__tagline {
    margin: 0;
    color: var(--wp--preset--color--base);
    font-size: var(--wp--preset--font-size--large);
    letter-spacing: var(--wp--custom--letter-spacing--wide);
  }

  /* Photo cell: fills its column, no wave on the seam side so the split
     reads as one crisp edge. */
  .etusivu-hero__media {
    position: relative;
    min-block-size: 60svh;
    overflow: hidden;
  }

  @media (min-width: 782px) {
    .etusivu-hero__media { min-block-size: auto; }
  }

  .etusivu-hero__media img {
    position: absolute;
    inset: 0;
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    object-position: center 28%;
  }

  /* ----- Kaksi polkua: two image-led routing cards ----- */
  .polku-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--wp--preset--spacing--50);
  }

  @media (min-width: 700px) {
    .polku-grid { grid-template-columns: 1fr 1fr; }
  }

  .polku-card {
    position: relative;
    display: block;
    overflow: hidden;
    border-radius: var(--wp--preset--border--radius--medium);
    background: var(--wp--preset--color--contrast);
    aspect-ratio: 4 / 5;
    box-shadow: var(--wp--preset--shadow--md);
  }

  .polku-card img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    transition: transform var(--wp--custom--timing--slow) var(--wp--custom--easing--out),
      filter var(--wp--custom--timing--normal) var(--wp--custom--easing--out);
  }

  /* Bottom scrim guarantees label contrast over any (bright) photo. */
  .polku-card__label {
    position: absolute;
    inset-inline: 0;
    inset-block-end: 0;
    padding: var(--wp--preset--spacing--60) var(--wp--preset--spacing--50)
      var(--wp--preset--spacing--50);
    background: linear-gradient(
      to top,
      var(--color-contrast-alpha-80) 0%,
      var(--color-contrast-alpha-50) 55%,
      transparent 100%
    );
    color: var(--wp--preset--color--base);
  }

  .polku-card__label .polku-card__title {
    margin: 0;
    color: var(--wp--preset--color--base);
    font-family: var(--wp--preset--font-family--heading);
    font-size: var(--wp--preset--font-size--xx-large);
    line-height: var(--wp--custom--line-height--tight);
  }

  .polku-card__label .polku-card__cue {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
    margin-block-start: var(--wp--preset--spacing--20);
    color: var(--wp--preset--color--base);
    font-size: var(--wp--preset--font-size--small);
    letter-spacing: var(--wp--custom--letter-spacing--wide);
    text-transform: uppercase;
  }

  /* Whole-card link: stretched ::before, no block children wrapped in <a>. */
  .polku-card__link {
    position: static;
    text-decoration: none;
    color: inherit;
  }

  .polku-card__link::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
  }

  .polku-card:hover img,
  .polku-card:focus-within img {
    transform: scale(1.04);
    filter: brightness(1.06); /* brighten on hover, never darken */
  }

  .polku-card:focus-within {
    outline: var(--focus-ring);
    outline-offset: var(--focus-ring-offset);
  }

  @media (prefers-reduced-motion: reduce) {
    .polku-card img { transition: filter var(--wp--custom--timing--fast) linear; }
    .polku-card:hover img,
    .polku-card:focus-within img { transform: none; }
  }

  /* ----- Kuvaria-silta: understated outbound strip ----- */
  .kuvaria-silta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--wp--preset--spacing--30) var(--wp--preset--spacing--50);
    text-align: center;
  }
}