{%- comment -%}
  MIT License · (c) 2026 Lintel · https://lintelagency.com/resources/shopify-sections
{%- endcomment -%}
{%- comment -%}
  Feature / value-prop cards with an optional glow that follows the pointer.
  Effect adapted from Uiverse.io "spotlight card" patterns; rewritten in plain CSS + a tiny custom element.
  Without JS the cards still render, just without the moving glow.
{%- endcomment -%}

{%- liquid
  assign s = section.settings
  assign heading_tag = s.heading_tag | default: 'h2'
  assign card_tag = 'h3'
  if heading_tag == 'h3' or heading_tag == 'p'
    assign card_tag = 'h4'
  endif
-%}

<div
  class="lib-cards lib-cards--{{ s.section_width }}"
  {% if s.anchor_id != blank %}
    id="{{ s.anchor_id | handleize }}"
  {% endif %}
  data-show="{{ s.show_on }}"
  data-card-align="{{ s.card_alignment }}"
  {% if s.glow %}
    data-glow
  {% endif %}
  style="
    --lib-bg: {{ s.color_bg }};
    {% if s.color_bg_gradient != blank %}--lib-bg-image: {{ s.color_bg_gradient }};{% endif %}
    --lib-card: {{ s.color_card }};
    --lib-text: {{ s.color_text }};
    --lib-accent: {{ s.color_accent }};
    --lib-cols: {{ s.columns }};
    --lib-cols-m: {{ s.columns_mobile }};
    --lib-radius: {{ s.card_radius }}px;
    --lib-pt: {{ s.padding_top }}px;
    --lib-pb: {{ s.padding_bottom }}px;
    --lib-pt-m: {{ s.padding_top_mobile }}px;
    --lib-pb-m: {{ s.padding_bottom_mobile }}px;
  "
>
  <div class="lib-cards__inner">
    {%- if s.heading != blank or s.text != blank -%}
      <header class="lib-cards__header" data-align="{{ s.text_alignment }}" data-align-m="{{ s.text_alignment_mobile }}">
        {%- if s.heading != blank -%}
          <{{ heading_tag }} class="lib-cards__heading lib-cards__heading--{{ s.heading_size }}">
            {{- s.heading -}}
          </{{ heading_tag }}>
        {%- endif -%}
        {%- if s.text != blank -%}
          <div class="lib-cards__intro">{{ s.text }}</div>
        {%- endif -%}
      </header>
    {%- endif -%}

    <lib-spotlight class="lib-cards__grid">
      {%- for block in section.blocks -%}
        {%- liquid
          assign b = block.settings
          assign tag = 'div'
          if b.link != blank
            assign tag = 'a'
          endif
        -%}
        <{{ tag }}
          class="lib-card"
          {% if tag == 'a' %}
            href="{{ b.link }}"
            {% if b.new_tab %}
              target="_blank" rel="noopener"
            {% endif %}
          {% endif %}
          {{ block.shopify_attributes }}
        >
          {%- if b.icon != blank -%}
            {{ b.icon | image_url: width: 192 | image_tag: class: 'lib-card__icon', loading: 'lazy', alt: '' }}
          {%- elsif b.emoji != blank -%}
            <span class="lib-card__icon lib-card__icon--glyph" aria-hidden="true">{{ b.emoji | escape }}</span>
          {%- endif -%}
          <{{ card_tag }} class="lib-card__title">{{ b.title | escape }}</{{ card_tag }}>
          {%- if b.text != blank -%}
            <div class="lib-card__text">{{ b.text }}</div>
          {%- endif -%}
          {%- if tag == 'a' and b.link_label != blank -%}
            <span class="lib-card__more">{{ b.link_label | escape }} <span aria-hidden="true">→</span></span>
          {%- endif -%}
        </{{ tag }}>
      {%- endfor -%}
    </lib-spotlight>
  </div>
</div>

{% stylesheet %}
  .lib-cards {
    background-color: var(--lib-bg);
    background-image: var(--lib-bg-image, none);
    color: var(--lib-text);
    padding: var(--lib-pt) 1rem var(--lib-pb);
  }
  .lib-cards__inner { max-width: 1200px; margin: 0 auto; }
  .lib-cards--full .lib-cards__inner { max-width: none; }
  @media (max-width: 749px) {
    .lib-cards { padding-top: var(--lib-pt-m); padding-bottom: var(--lib-pb-m); }
    .lib-cards[data-show='desktop'] { display: none; }
  }
  @media (min-width: 750px) {
    .lib-cards[data-show='mobile'] { display: none; }
  }

  .lib-cards__header { max-width: 40rem; margin: 0 auto 3rem; text-align: center; }
  .lib-cards__header[data-align='left'] { margin-left: 0; text-align: left; }
  .lib-cards__header[data-align='right'] { margin-right: 0; text-align: right; }
  @media (max-width: 749px) {
    .lib-cards__header[data-align-m='left'] { margin-left: 0; margin-right: auto; text-align: left; }
    .lib-cards__header[data-align-m='center'] { margin-inline: auto; text-align: center; }
    .lib-cards__header[data-align-m='right'] { margin-right: 0; margin-left: auto; text-align: right; }
  }
  .lib-cards__heading {
    margin: 0;
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    text-wrap: balance;
  }
  .lib-cards__heading--small { font-size: clamp(1.4rem, 2.5vw, 2rem); }
  .lib-cards__heading--large { font-size: clamp(2rem, 4.5vw, 3.5rem); }
  .lib-cards__intro { margin-top: 1rem; font-size: 1.05rem; line-height: 1.6; opacity: 0.7; }
  .lib-cards__intro > * { margin: 0; }

  .lib-cards__grid { display: grid; gap: 1rem; grid-template-columns: repeat(var(--lib-cols-m), minmax(0, 1fr)); }
  @media (min-width: 750px) {
    .lib-cards__grid { grid-template-columns: repeat(min(var(--lib-cols), 2), minmax(0, 1fr)); }
  }
  @media (min-width: 990px) {
    .lib-cards__grid { grid-template-columns: repeat(var(--lib-cols), minmax(0, 1fr)); }
  }

  .lib-card {
    --x: 50%;
    --y: 50%;
    --glow: 0;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.75rem;
    border-radius: var(--lib-radius);
    background: var(--lib-card);
    color: inherit;
    text-decoration: none;
    isolation: isolate;
    overflow: hidden;
    transition: transform 0.25s ease;
  }
  .lib-cards[data-card-align='center'] .lib-card { align-items: center; text-align: center; }
  /* Border: a 1px ring; with the glow on, a radial gradient follows the pointer around it. */
  .lib-card::before,
  .lib-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    pointer-events: none;
  }
  .lib-card::before {
    padding: 1px;
    background: color-mix(in srgb, var(--lib-text) 12%, transparent);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
  }
  .lib-cards[data-glow] .lib-card::before {
    background:
      radial-gradient(240px circle at var(--x) var(--y), var(--lib-accent), transparent 70%),
      color-mix(in srgb, var(--lib-text) 12%, transparent);
  }
  .lib-card::after {
    z-index: -1;
    background: radial-gradient(360px circle at var(--x) var(--y), color-mix(in srgb, var(--lib-accent) 14%, transparent), transparent 70%);
    opacity: var(--glow);
    transition: opacity 0.3s ease;
  }
  a.lib-card:hover { transform: translateY(-3px); }
  a.lib-card:focus-visible { outline: 2px solid var(--lib-accent); outline-offset: 3px; }
  .lib-card__icon { display: block; width: 2.75rem; height: 2.75rem; object-fit: contain; margin-bottom: 1.25rem; }
  .lib-card__icon--glyph {
    display: grid;
    place-items: center;
    font-size: 1.4rem;
    border-radius: 0.75rem;
    background: color-mix(in srgb, var(--lib-accent) 14%, transparent);
  }
  .lib-card__title { margin: 0; font-size: 1.15rem; line-height: 1.3; }
  .lib-card__text { margin-top: 0.5rem; line-height: 1.6; opacity: 0.7; }
  .lib-card__text > * { margin: 0; }
  .lib-card__more { margin-top: auto; padding-top: 1.25rem; font-weight: 600; color: var(--lib-accent); }
  @media (prefers-reduced-motion: reduce) {
    .lib-card, .lib-card::after { transition: none; }
    a.lib-card:hover { transform: none; }
  }
{% endstylesheet %}

{% javascript %}
  if (!customElements.get('lib-spotlight')) {
    customElements.define(
      'lib-spotlight',
      class extends HTMLElement {
        connectedCallback() {
          if (!this.closest('[data-glow]') || matchMedia('(hover: none)').matches) return;
          this.addEventListener('pointermove', (e) => {
            for (const card of this.querySelectorAll('.lib-card')) {
              const r = card.getBoundingClientRect();
              card.style.setProperty('--x', `${e.clientX - r.left}px`);
              card.style.setProperty('--y', `${e.clientY - r.top}px`);
            }
          });
          this.addEventListener('pointerover', (e) => {
            const card = e.target.closest('.lib-card');
            if (card) card.style.setProperty('--glow', '1');
          });
          this.addEventListener('pointerout', (e) => {
            const card = e.target.closest('.lib-card');
            if (card && !card.contains(e.relatedTarget)) card.style.setProperty('--glow', '0');
          });
        }
      }
    );
  }
{% endjavascript %}

{% schema %}
{
  "name": "Lib · Feature cards",
  "tag": "section",
  "class": "lib-section",
  "max_blocks": 8,
  "settings": [
    { "type": "header", "content": "Content" },
    { "type": "inline_richtext", "id": "heading", "label": "Heading", "default": "Why customers come back" },
    {
      "type": "select",
      "id": "heading_tag",
      "label": "Heading tag",
      "options": [
        { "value": "h1", "label": "H1" },
        { "value": "h2", "label": "H2" },
        { "value": "h3", "label": "H3" },
        { "value": "p", "label": "Paragraph" }
      ],
      "default": "h2"
    },
    {
      "type": "select",
      "id": "heading_size",
      "label": "Heading size",
      "options": [
        { "value": "small", "label": "Small" },
        { "value": "medium", "label": "Medium" },
        { "value": "large", "label": "Large" }
      ],
      "default": "medium"
    },
    { "type": "richtext", "id": "text", "label": "Intro", "default": "<p>Three or four short reasons, each backed by something real.</p>" },

    { "type": "header", "content": "Layout" },
    { "type": "range", "id": "columns", "label": "Columns on desktop", "min": 2, "max": 4, "step": 1, "default": 3 },
    {
      "type": "select",
      "id": "columns_mobile",
      "label": "Columns on mobile",
      "options": [
        { "value": "1", "label": "1" },
        { "value": "2", "label": "2" }
      ],
      "default": "1"
    },
    {
      "type": "select",
      "id": "section_width",
      "label": "Width",
      "options": [
        { "value": "page", "label": "Page width" },
        { "value": "full", "label": "Full width" }
      ],
      "default": "page"
    },
    { "type": "text_alignment", "id": "text_alignment", "label": "Heading alignment on desktop", "default": "center" },
    {
      "type": "select",
      "id": "text_alignment_mobile",
      "label": "Heading alignment on mobile",
      "options": [
        { "value": "left", "label": "Left" },
        { "value": "center", "label": "Center" },
        { "value": "right", "label": "Right" }
      ],
      "default": "left"
    },
    {
      "type": "select",
      "id": "card_alignment",
      "label": "Card content alignment",
      "options": [
        { "value": "left", "label": "Left" },
        { "value": "center", "label": "Center" }
      ],
      "default": "left"
    },
    { "type": "range", "id": "card_radius", "label": "Card corner radius", "min": 0, "max": 32, "step": 2, "unit": "px", "default": 16 },

    { "type": "header", "content": "Colors" },
    { "type": "color", "id": "color_bg", "label": "Background", "default": "#0C0A09" },
    { "type": "color_background", "id": "color_bg_gradient", "label": "Background gradient", "info": "Optional. Covers the background color." },
    { "type": "color", "id": "color_card", "label": "Card", "default": "#1C1917" },
    { "type": "color", "id": "color_text", "label": "Text", "default": "#FAFAF9" },
    { "type": "color", "id": "color_accent", "label": "Accent and glow", "default": "#F59E0B" },

    { "type": "header", "content": "Spacing and visibility" },
    { "type": "range", "id": "padding_top", "label": "Top padding on desktop", "min": 0, "max": 200, "step": 4, "unit": "px", "default": 96 },
    { "type": "range", "id": "padding_bottom", "label": "Bottom padding on desktop", "min": 0, "max": 200, "step": 4, "unit": "px", "default": 96 },
    { "type": "range", "id": "padding_top_mobile", "label": "Top padding on mobile", "min": 0, "max": 160, "step": 4, "unit": "px", "default": 56 },
    { "type": "range", "id": "padding_bottom_mobile", "label": "Bottom padding on mobile", "min": 0, "max": 160, "step": 4, "unit": "px", "default": 56 },
    {
      "type": "select",
      "id": "show_on",
      "label": "Show on",
      "options": [
        { "value": "all", "label": "All devices" },
        { "value": "desktop", "label": "Desktop only" },
        { "value": "mobile", "label": "Mobile only" }
      ],
      "default": "all"
    },
    { "type": "text", "id": "anchor_id", "label": "Anchor ID", "info": "Optional. Link to this section with #your-id." },

    { "type": "header", "content": "Motion" },
    { "type": "checkbox", "id": "glow", "label": "Glow follows the pointer on desktop", "default": true }
  ],
  "blocks": [
    {
      "type": "card",
      "name": "Card",
      "settings": [
        { "type": "image_picker", "id": "icon", "label": "Icon image" },
        { "type": "text", "id": "emoji", "label": "Or a symbol / emoji", "default": "✦" },
        { "type": "text", "id": "title", "label": "Title", "default": "Card title" },
        { "type": "richtext", "id": "text", "label": "Text", "default": "<p>One or two sentences.</p>" },
        { "type": "url", "id": "link", "label": "Link" },
        { "type": "text", "id": "link_label", "label": "Link label", "info": "Shown at the bottom of the card.", "visible_if": "{{ block.settings.link != blank }}" },
        { "type": "checkbox", "id": "new_tab", "label": "Open link in a new tab", "default": false, "visible_if": "{{ block.settings.link != blank }}" }
      ]
    }
  ],
  "presets": [
    {
      "name": "Lib · Feature cards",
      "blocks": [
        { "type": "card", "settings": { "emoji": "✦", "title": "Handmade", "text": "<p>Every piece is finished by hand in our studio.</p>" } },
        { "type": "card", "settings": { "emoji": "↺", "title": "30-day returns", "text": "<p>Not right? Send it back, no questions.</p>" } },
        { "type": "card", "settings": { "emoji": "◎", "title": "Lifetime care", "text": "<p>Free cleaning and repairs for as long as you own it.</p>" } }
      ]
    }
  ]
}
{% endschema %}