/* ==========================================================================
   ModbusKit – stile globale
   Base: grigio dei quadri elettrici (RAL 7035), accento: blu del morsetto di neutro.
   Gli stili dei singoli componenti sono nei file .razor.css accanto a ciascun componente.
   ========================================================================== */

/* --- Font ospitati sul sito (SIL Open Font License, vedi /fonts) ---------- */

@font-face {
    font-family: "Barlow";
    src: url("../fonts/barlow-latin-400-normal.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow";
    src: url("../fonts/barlow-latin-500-normal.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow";
    src: url("../fonts/barlow-latin-600-normal.woff2") format("woff2");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow Semi Condensed";
    src: url("../fonts/barlow-semi-condensed-latin-600-normal.woff2") format("woff2");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Barlow Semi Condensed";
    src: url("../fonts/barlow-semi-condensed-latin-700-normal.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "JetBrains Mono";
    src: url("../fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "JetBrains Mono";
    src: url("../fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

/* --- Token --------------------------------------------------------------- */

:root {
    color-scheme: light;

    --color-page: #dfe2df;
    --color-surface: #f6f7f5;
    --color-panel: #eceeeb;
    --color-ink: #1e272c;
    --color-ink-muted: #4e5a60;
    --color-rule: #c9cec9;
    --color-rule-strong: #9aa39d;
    --color-accent: #1f57a8;
    --color-accent-hover: #17468a;
    --color-on-accent: #ffffff;
    --color-dimension: #7d8882;
    --color-match-surface: #dce6f4;
    --color-error: #a3271d;
    --color-error-surface: #f8e3e0;

    --font-body: "Barlow", "Segoe UI", system-ui, sans-serif;
    --font-display: "Barlow Semi Condensed", "Barlow", "Segoe UI", system-ui, sans-serif;
    --font-mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2.5rem;
    --space-7: 4rem;

    --radius-s: 4px;
    --radius-m: 6px;

    --page-width: 72rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;

        --color-page: #161b1e;
        --color-surface: #1e2428;
        --color-panel: #262d32;
        --color-ink: #e4e7e5;
        --color-ink-muted: #a4aeb2;
        --color-rule: #333c41;
        --color-rule-strong: #4d585e;
        --color-accent: #79a6ea;
        --color-accent-hover: #9cbdf0;
        --color-on-accent: #0f1a2b;
        --color-dimension: #7c878c;
        --color-match-surface: #22344d;
        --color-error: #f0a49b;
        --color-error-surface: #3a2220;
    }
}

/* --- Base ---------------------------------------------------------------- */

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

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--color-page);
    color: var(--color-ink);
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

#app {
    flex: 1;
    display: flex;
    flex-direction: column;
}

#app > main {
    flex: 1;
}

h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0.005em;
    color: var(--color-ink);
}

h1 {
    font-size: clamp(2rem, 1.6rem + 1.6vw, 2.5rem);
}

h2 {
    font-size: 1.5rem;
    margin: var(--space-6) 0 var(--space-3);
}

h3 {
    font-size: 1.1875rem;
    margin: var(--space-5) 0 var(--space-2);
}

p {
    margin: 0 0 var(--space-4);
}

a {
    color: var(--color-accent);
    text-underline-offset: 0.18em;
}

a:hover {
    color: var(--color-accent-hover);
}

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-s);
}

code,
kbd,
samp,
pre {
    font-family: var(--font-mono);
    font-size: 0.92em;
}

code {
    padding: 0.05em 0.3em;
    background: var(--color-panel);
    border-radius: var(--radius-s);
}

.wrap {
    width: 100%;
    max-width: var(--page-width);
    margin-inline: auto;
    padding-inline: var(--space-5);
}

@media (max-width: 40rem) {
    .wrap {
        padding-inline: var(--space-4);
    }
}

/* Testo letto dai lettori di schermo ma non visibile. */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* --- Caricamento iniziale di WebAssembly ---------------------------------- */

.loading-progress {
    position: absolute;
    display: block;
    width: 6rem;
    height: 6rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto;
}

.loading-progress circle {
    fill: none;
    stroke: var(--color-rule);
    stroke-width: 0.5rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--color-accent);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    color: var(--color-ink-muted);
    inset: calc(20vh + 2.5rem) 0 auto 0;
}

.loading-progress-text::after {
    content: var(--blazor-load-percentage-text, "Loading");
}

/* --- Errori -------------------------------------------------------------- */

#blazor-error-ui {
    display: none;
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-3) var(--space-6) var(--space-3) var(--space-5);
    background: var(--color-error-surface);
    color: var(--color-ink);
    border-top: 2px solid var(--color-error);
}

#blazor-error-ui .dismiss {
    position: absolute;
    right: var(--space-4);
    top: var(--space-3);
    cursor: pointer;
}

.blazor-error-boundary {
    padding: var(--space-4);
    background: var(--color-error-surface);
    border-left: 4px solid var(--color-error);
    color: var(--color-ink);
}

.blazor-error-boundary::after {
    content: "This tool hit an unexpected error. Reload the page to try again.";
}