/* ==========================================================================
   AWS Icons for PlantUML — Icon Browser Stylesheet
   CloudScape Design System inspired tokens and layout
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens (CSS Custom Properties)
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-background-layout-main: #ffffff;
    --color-background-container-content: #ffffff;
    --color-background-container-header: #fafafa;
    --color-border-divider-default: #e9ebed;
    --color-text-body-default: #000716;
    --color-text-heading-default: #000716;
    --color-text-body-secondary: #414d5c;
    --color-background-button-primary-default: #0972d3;
    --color-background-button-primary-hover: #065299;
    --color-background-button-primary-active: #033160;
    --color-text-interactive-default: #0972d3;
    --color-text-link-default: #0972d3;
    --color-background-input-default: #ffffff;
    --color-border-input-default: #7d8998;
    --color-border-input-focused: #0972d3;
    --color-background-notification-green: #037f0c;
    --color-background-layout-nav: #0f1b2a;
    --color-text-nav: #ffffff;
    --color-background-badge: #414d5c;

    /* Typography */
    --font-family-base: "Amazon Ember", "Helvetica Neue", Roboto, Arial, sans-serif;
    --font-family-mono: "Monaco", "Menlo", "Consolas", "Courier New", monospace;
    --font-size-body-s: 12px;
    --font-size-body-m: 14px;
    --font-size-heading-s: 18px;
    --font-size-heading-m: 20px;
    --font-size-heading-l: 24px;
    --font-weight-normal: 400;
    --font-weight-bold: 700;
    --line-height-body: 1.5;
    --line-height-heading: 1.25;

    /* Spacing */
    --space-xs: 4px;
    --space-s: 8px;
    --space-m: 12px;
    --space-l: 20px;
    --space-xl: 24px;
    --space-xxl: 32px;

    /* Border Radii */
    --border-radius-container: 16px;
    --border-radius-button: 8px;
    --border-radius-input: 8px;
    --border-radius-badge: 4px;

    /* Shadows */
    --shadow-container: 0 1px 2px 0 rgba(0, 7, 22, 0.12);
    --shadow-card-hover: 0 4px 12px rgba(0, 7, 22, 0.12);

    /* Focus */
    --color-border-item-focused: #0972d3;
    --focus-ring: 0 0 0 2px var(--color-border-item-focused);

    /* Transitions */
    --transition-duration: 150ms;
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-body-m);
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family-base);
    font-size: var(--font-size-body-m);
    line-height: var(--line-height-body);
    color: var(--color-text-body-default);
    background-color: var(--color-background-layout-main);
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--space-m) 0;
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-heading);
    color: var(--color-text-heading-default);
}

a {
    color: var(--color-text-link-default);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

/* --------------------------------------------------------------------------
   3. Utility Classes
   -------------------------------------------------------------------------- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   4. Focus Indicators (Keyboard Navigation)
   -------------------------------------------------------------------------- */
:focus-visible {
    outline: 2px solid var(--color-border-item-focused);
    outline-offset: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--color-border-item-focused);
    outline-offset: 2px;
    border-radius: var(--border-radius-badge);
}

/* --------------------------------------------------------------------------
   5. Navigation Bar
   -------------------------------------------------------------------------- */
nav {
    background-color: var(--color-background-layout-nav);
    color: var(--color-text-nav);
    padding: var(--space-m) var(--space-xl);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-content {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-m);
}

.nav-title {
    font-size: var(--font-size-heading-s);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-nav);
    text-decoration: none;
    white-space: nowrap;
}

.nav-title:hover {
    color: var(--color-text-nav);
    text-decoration: none;
    opacity: 0.9;
}

.nav-github-link {
    color: var(--color-text-nav);
    font-size: var(--font-size-body-m);
    text-decoration: none;
    padding: var(--space-xs) var(--space-s);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--border-radius-button);
    transition: background-color var(--transition-duration);
}

.nav-github-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
}

/* --------------------------------------------------------------------------
   6. Main Content Area
   -------------------------------------------------------------------------- */
main {
    max-width: 1440px;
    margin: 0 auto;
    padding: var(--space-xl);
}

/* --------------------------------------------------------------------------
   7. Controls Section (Version Selector + Category Dropdown + Search)
   -------------------------------------------------------------------------- */
.controls {
    margin-bottom: var(--space-xl);
}

.controls-row {
    display: flex;
    gap: var(--space-l);
    align-items: flex-end;
    flex-wrap: wrap;
    margin-bottom: var(--space-m);
}

.version-selector,
.category-selector {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    min-width: 140px;
}

.version-selector label,
.category-selector label {
    font-size: var(--font-size-body-s);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-body-secondary);
}

.version-selector select,
.category-selector select {
    font-family: var(--font-family-base);
    font-size: var(--font-size-body-m);
    padding: var(--space-s) var(--space-m);
    border: 1px solid var(--color-border-input-default);
    border-radius: var(--border-radius-input);
    background-color: var(--color-background-input-default);
    color: var(--color-text-body-default);
    cursor: pointer;
    appearance: auto;
}

.category-selector {
    min-width: 220px;
}

.version-selector select:focus-visible,
.category-selector select:focus-visible {
    border-color: var(--color-border-input-focused);
    outline: 2px solid var(--color-border-item-focused);
    outline-offset: -1px;
}

.search-container {
    flex: 1;
    min-width: 200px;
    max-width: 480px;
}

.search-container input[type="search"] {
    width: 100%;
    font-family: var(--font-family-base);
    font-size: var(--font-size-body-m);
    padding: var(--space-s) var(--space-m);
    border: 1px solid var(--color-border-input-default);
    border-radius: var(--border-radius-input);
    background-color: var(--color-background-input-default);
    color: var(--color-text-body-default);
}

.search-container input[type="search"]::placeholder {
    color: var(--color-text-body-secondary);
}

.search-container input[type="search"]:focus-visible {
    border-color: var(--color-border-input-focused);
    outline: 2px solid var(--color-border-item-focused);
    outline-offset: -1px;
}

/* --------------------------------------------------------------------------
   8. Icon Counts (inline with controls row)
   -------------------------------------------------------------------------- */
.icon-counts {
    font-size: var(--font-size-body-m);
    color: var(--color-text-body-secondary);
    white-space: nowrap;
    flex-shrink: 0;
    align-self: flex-end;
    padding-bottom: var(--space-s);
}

/* --------------------------------------------------------------------------
   9. Icon Grid & Category Sections
   -------------------------------------------------------------------------- */
.icon-grid {
    margin-top: var(--space-xl);
}

.category-section {
    margin-bottom: var(--space-xxl);
}

.category-heading {
    font-size: var(--font-size-heading-m);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-heading-default);
    padding: var(--space-s) var(--space-m);
    margin-bottom: var(--space-m);
    background-color: var(--color-background-container-header);
    border-left: 4px solid currentColor; /* overridden by inline style */
    border-radius: var(--border-radius-badge);
    display: flex;
    align-items: baseline;
    gap: var(--space-s);
}

.category-heading .category-count {
    font-weight: var(--font-weight-normal);
    font-size: var(--font-size-body-m);
    color: var(--color-text-body-secondary);
}

.category-heading .category-color {
    margin-left: auto;
    font-family: var(--font-family-mono);
    font-size: var(--font-size-body-s);
    font-weight: var(--font-weight-normal);
}

/* List layout: vertical stack of icon rows */
.category-icons {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* --------------------------------------------------------------------------
   10. Icon Rows (List View)
   -------------------------------------------------------------------------- */
.icon-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-m);
    padding: var(--space-s) var(--space-m);
    background-color: var(--color-background-container-content);
    border-bottom: 1px solid var(--color-border-divider-default);
    transition: background-color var(--transition-duration);
}

.icon-row:first-child {
    border-top: 1px solid var(--color-border-divider-default);
}

.icon-row:hover {
    background-color: var(--color-background-container-header);
}

.icon-row img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    flex-shrink: 0;
}

/* Broken-image placeholder */
.icon-placeholder {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background-container-header);
    border: 1px dashed var(--color-border-divider-default);
    border-radius: var(--border-radius-badge);
    color: var(--color-text-body-secondary);
    font-size: var(--font-size-heading-s);
    flex-shrink: 0;
}

.icon-name {
    font-size: var(--font-size-body-m);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-heading-default);
    white-space: nowrap;
    min-width: 140px;
    flex-shrink: 0;
}

.icon-puml-path {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-body-s);
    color: var(--color-text-body-secondary);
    word-break: break-all;
    line-height: 1.4;
    flex: 1;
    min-width: 0;
}

/* --------------------------------------------------------------------------
   11. Copy Button & Copied Feedback
   -------------------------------------------------------------------------- */
.copy-button {
    font-family: var(--font-family-base);
    font-size: var(--font-size-body-s);
    font-weight: var(--font-weight-bold);
    color: var(--color-background-button-primary-default);
    background-color: transparent;
    border: 1px solid var(--color-background-button-primary-default);
    border-radius: var(--border-radius-button);
    padding: var(--space-xs) var(--space-m);
    cursor: pointer;
    transition: background-color var(--transition-duration), color var(--transition-duration);
    white-space: nowrap;
    min-width: 64px;
    flex-shrink: 0;
}

.copy-button:hover {
    background-color: var(--color-background-button-primary-default);
    color: #ffffff;
}

.copy-button:active {
    background-color: var(--color-background-button-primary-active);
    color: #ffffff;
}

/* Copied confirmation state */
.copy-button.copied {
    background-color: var(--color-background-notification-green);
    border-color: var(--color-background-notification-green);
    color: #ffffff;
    pointer-events: none;
    animation: copied-flash 1.5s ease-out forwards;
}

@keyframes copied-flash {
    0% {
        background-color: var(--color-background-notification-green);
        border-color: var(--color-background-notification-green);
        color: #ffffff;
    }
    70% {
        background-color: var(--color-background-notification-green);
        border-color: var(--color-background-notification-green);
        color: #ffffff;
    }
    100% {
        background-color: transparent;
        border-color: var(--color-background-button-primary-default);
        color: var(--color-background-button-primary-default);
    }
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
footer {
    margin-top: var(--space-xxl);
    padding: var(--space-xl);
    border-top: 1px solid var(--color-border-divider-default);
    background-color: var(--color-background-container-header);
}

.footer-content {
    max-width: 1440px;
    margin: 0 auto;
    text-align: center;
    font-size: var(--font-size-body-s);
    color: var(--color-text-body-secondary);
}

.footer-content p {
    margin: 0;
}

.footer-content a {
    color: var(--color-text-link-default);
}

/* --------------------------------------------------------------------------
   14. Responsive Breakpoints
   -------------------------------------------------------------------------- */

/* Mobile: 320px – 767px */
@media (max-width: 767px) {
    nav {
        padding: var(--space-s) var(--space-m);
    }

    .nav-content {
        flex-wrap: wrap;
    }

    .nav-title {
        font-size: 16px;
    }

    main {
        padding: var(--space-m);
    }

    .controls-row {
        flex-direction: column;
        align-items: stretch;
    }

    .version-selector,
    .category-selector {
        min-width: unset;
    }

    .search-container {
        max-width: none;
    }

    .filter-row {
        flex-direction: column;
    }

    .icon-row {
        gap: var(--space-s);
        padding: var(--space-xs) var(--space-s);
    }

    .icon-name {
        min-width: 80px;
        font-size: var(--font-size-body-s);
    }

    .icon-puml-path {
        font-size: 10px;
        display: none; /* Hide PUML path on mobile to save space */
    }
}

/* Tablet: 768px – 1023px */
@media (min-width: 768px) and (max-width: 1023px) {
    .icon-name {
        min-width: 120px;
    }
}

/* Desktop: 1024px+ — defaults above handle this */