/* vars */

@property --corner-length {
    syntax: '<length>';
    inherits: true;
    initial-value: 55px;
}

:root {
    --hue: 150;
    --color-dark: hsl(var(--hue) 30% 4%);
    --color-light: hsl(var(--hue) 60% 95%);
    --color-medium: hsl(var(--hue) 10% 70%);
    --color-primary: hsl(var(--hue) 72% 59%);
    --color-error: hsl(calc(var(--hue) + 180) 72% 59%);
    --color-primary-light: color-mix(in srgb, var(--color-primary) 60%, transparent);
    --color-green: hsl(120 72% 59%);
    --color-red: hsl(0 72% 59%);

    --border-thickness: 3px;
    --border-offset: 0.375rem;

    --size-xs: .25rem;
    --size-s: .8rem;
    --size-m: 1rem;
    --size-lg: 2rem;
    --size-xl: 3.6rem;

    --text-xxs: 0.6rem;
    --text-xs: 0.75rem; /* labels, notes, secondary */
    --text-sm: 0.9rem; /* body, descriptions, inputs */
    --text-m: 1rem;
    --text-lg: 1.5rem; /* dialog titles */
}

/* Base */

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

html {
    color-scheme: dark;
    font-family: "Space Mono", monospace;
    font-weight: 400;
    line-height: 1.618;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

html,
body {
    margin: 0;
    height: 100%;
    overscroll-behavior: none;
}

body {
    color: var(--color-light);
    overflow: hidden;
    padding: 2vw;
    opacity: 0;
    transition: opacity 0.3s ease;
}

a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-color: var(--color-primary);
    text-underline-offset: 3px;
    transition: color 0.2s, text-decoration-color 0.2s;

    &.dark-link {
        color: var(--color-medium);
        text-decoration-color: var(--color-medium);
        text-underline-offset: 2px;
    }
}

a:hover {
    color: var(--color-primary);
    text-decoration-color: var(--color-primary);
}

a:focus-visible {
    outline: 2px dashed color-mix(in srgb, var(--color-primary) 60%, transparent);
    outline-offset: 0.125rem;
}

a[href^="http"]::after {
    content: "\00a0↗";
    font-size: var(--text-xs);
    vertical-align: text-top;
    line-height: 1;
}

p {
    margin-block-start: var(--size-m);
    margin-block-end: var(--size-m);
}

/* scrollbars */

::-webkit-scrollbar {
    width: var(--size-s);
    height: var(--size-s);
    display: block;
}

::-webkit-scrollbar-track {
    border-left: 1px solid var(--color-primary);
    background-color: var(--color-dark);
}

::-webkit-scrollbar-thumb {
    border-radius: 0;
    border: none;
    border-radius: 0px; 
    background: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-width: 1px 0 1px 1px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}

::-webkit-scrollbar-button {
  display: block;
  height: .5rem;
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-primary);
  border-width: 1px 0 1px 1px;
}



/* classes */
.color-medium { color: var(--color-medium); }
.color-primary { color: var(--color-primary); }
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-center { text-align: center; }
.text-overflow { text-overflow: ellipsis; overflow: hidden; }

.mg-y-s { margin-top: var(--size-s); margin-bottom: var(--size-s); }
.mg-t-s { margin-top: var(--size-s); }
.mg-t-a { margin-top: auto; }
.mg-l-a { margin-left: auto; }
.pd-lg { padding: var(--size-lg);}
.pd-m { padding: var(--size-m);}
.pd-s { padding: var(--size-s);}
.w-full { width: 100%; }

.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.flex-center { align-items: center; justify-content: center; }
.flex-col { flex-direction: column; }
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
.gap-m { gap: var(--size-m); }
.gap-s { gap: var(--size-s); }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.content-center { justify-content: center; }

.mh { max-height: 24vh; }

.overflow-auto{ overflow: auto; }
.overflow-hidden{ overflow: hidden; }
.overflow-y-scroll{ overflow-y: scroll; }

.nowrap { white-space: nowrap; }
.pointer { cursor: pointer; }

.square {
    flex-shrink: 0;
    width: var(--size-s);
    height: var(--size-s);
}

.border-top-primary-light {
    border-top: 1px solid var(--color-primary-light);
}


/* Landing page */

#root {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: var(--size-m);
    padding: var(--size-lg);
    background: var(--color-dark);
    border: 1px solid var(--color-primary);
}

#logo-container {
    display: flex;
    flex-direction: column;
    gap: 0.39vh;
}

#logo {
    width: 16vh;
}

.logotypes {
    display: flex;
    gap: 0.45vh;
}

.logotype {
    height: 3vh;
}

/* outline variant (default) vs. filled variant (random on load) */
#logo-container:not(.fill) #fill_path { fill: transparent; }
#logo-container:not(.fill) #stroke_path,
#logo-container:not(.fill) .logotype { fill: var(--color-primary); }
#logo-container.fill #fill_path,
#logo-container.fill #stroke_path,
#logo-container.fill .logotype { fill: var(--color-light); }

#lang-btn {
    border: none;
    padding: 0;
    font-size: var(--text-xs);
    letter-spacing: 1px;
    background: none;
    color: inherit;
}
#lang-btn:hover {
    color: var(--color-primary);
}

/* form */

input,
button,
select {
    height: var(--size-lg);
    padding: 0 1rem;
    background-color: color-mix(in srgb, var(--color-dark) 10%, transparent);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-family: "Space Mono", monospace;
    font-size: var(--text-sm);
    font-weight: 400;
    letter-spacing: 0.5px;
    line-height: 1;
    border-radius: 0;
}

input:disabled,
button:disabled,
select:disabled {
    pointer-events: none;
    opacity: 0.6;
    cursor: default;
}

select {
    appearance: base-select;
    line-height: calc(var(--size-lg) - 1px);
}
select::picker-icon {
    margin-left: var(--size-xs);
}

button {
    font-weight: 700;
    cursor: pointer;

    &.small {
        padding: var(--size-xs);
        height: auto;
        line-height: 1;
    }

    small {
        font-size: var(--text-xxs);
        letter-spacing: 1px;
        text-transform: uppercase;
    }
}

button:hover {
    background-color: var(--color-primary);
    color: var(--color-dark);
}

input:focus-visible,
button:focus-visible,
select:focus-visible {
    outline: 2px dashed color-mix(in srgb, var(--color-primary) 60%, transparent);
    outline-offset: 0.125rem;
    box-shadow: 0 0 0.75rem color-mix(in srgb, var(--color-primary) 60%, transparent);
}

input:user-invalid {
    border-color: var(--color-error);
    box-shadow: 0 0 0.5rem color-mix(in srgb, var(--color-error) 40%, transparent);
}

input:user-invalid + button {
    border-left-color: var(--color-error);
    color: var(--color-error);
}

/* borderless text button (footer links, inline actions) */
button.link {
    height: auto;
    padding: 0;
    border: none;
    line-height: 1;
}

/* range slider */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 7.5rem;
    height: 2px;
    padding: 0;
    border: none;
    background: var(--color-primary);
    outline: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track,
input[type="range"]::-moz-range-track {
    height: 2px;
    background: var(--color-primary);
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 0.75rem;
    height: 0.75rem;
    background: var(--color-primary);
    border: 1px solid var(--color-dark);
    outline: 1px solid var(--color-primary);
    box-shadow: 0 0 0.375rem var(--color-primary);
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 0.625rem;
    height: 0.625rem;
    background: var(--color-primary);
    border: none;
    border-radius: 0;
    box-shadow: 0 0 0.375rem var(--color-primary);
    cursor: pointer;
}

input[type="range"]:focus::-webkit-slider-thumb {
    box-shadow: 0 0 0.75rem var(--color-primary);
}

/* input + affixed action button (proxy URL, add device) */
.input-group, .input-group > div {
    position: relative;
}

.input-group input {
    width: 100%;
    padding-right: 4rem;
}

.input-group button {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0;
    aspect-ratio: 1;
    border-width: 0 0 0 1px;
    font-size: 1.3rem;
}

.input-group .input-message,
.input-group .input-error {
    display: block;
    margin: 0.5rem 0.25rem;
    font-size: var(--text-xs);
}

.input-group .input-message { color: color-mix(in srgb, var(--color-light) 50%, transparent); }
.input-group .input-error { color: var(--color-error); }
.input-group .input-message:empty,
.input-group .input-error:empty { display: none; }

/* sliders with a label + live value */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.controls-v {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.slider {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: color-mix(in srgb, var(--color-primary) 60%, transparent);
    font-size: var(--text-xs);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: default;
}

.controls-v .slider {
    width: 100%;
}

.controls-v .slider input[type="range"] {
    flex: 1;
    width: auto;
    min-width: 0;
}

.slider-value {
    min-width: 3ch;
    color: var(--color-primary);
    font-size: var(--text-sm);
    letter-spacing: 0;
    text-align: right;
}

/* Dialog */

/* style and animations */
dialog {
    position: fixed;
    max-width: 80%;
    padding: 0;
    border: 1px solid var(--color-primary);
    outline: none;
    background-color: color-mix(in srgb, var(--color-dark) 40%, transparent);
    color: var(--color-light);
    overflow: visible;
    filter: drop-shadow(0 0 6.25rem color-mix(in srgb, var(--color-primary) 50%, transparent));
    --corner-length: 55px;
    opacity: 0;
    transform: scaleY(0.01) scaleX(0.1);
    transition:
        opacity 0.4s ease,
        transform 0.4s ease,
        --corner-length 0.4s ease,
        display 0.4s ease allow-discrete,
        overlay 0.4s ease allow-discrete;
        
    &:not([open]) {
        display: none;
    }
    
    &[open] {
        opacity: 1;
        animation: open-hud 0.45s cubic-bezier(0.25, 1, 0.5, 1) forwards;
    }
  
    /* glowing corner brackets */
    &::after {
        content: "";
        position: absolute;
        inset: calc(var(--border-thickness) * -1 - var(--border-offset));
        pointer-events: none;
        background-image:
            linear-gradient(to right,  var(--color-primary) var(--border-thickness), transparent var(--border-thickness)),
            linear-gradient(to bottom, var(--color-primary) var(--border-thickness), transparent var(--border-thickness)),
            linear-gradient(to left,   var(--color-primary) var(--border-thickness), transparent var(--border-thickness)),
            linear-gradient(to bottom, var(--color-primary) var(--border-thickness), transparent var(--border-thickness)),
            linear-gradient(to right,  var(--color-primary) var(--border-thickness), transparent var(--border-thickness)),
            linear-gradient(to top,    var(--color-primary) var(--border-thickness), transparent var(--border-thickness)),
            linear-gradient(to left,   var(--color-primary) var(--border-thickness), transparent var(--border-thickness)),
            linear-gradient(to top,    var(--color-primary) var(--border-thickness), transparent var(--border-thickness));
        background-position: 0 0, 0 0, 100% 0, 100% 0, 0 100%, 0 100%, 100% 100%, 100% 100%;
        background-size: var(--corner-length) var(--corner-length);
        background-repeat: no-repeat;
    }

    /* CRT scanline overlay */
    &::before {
        content: "";
        position: absolute;
        inset: 0;
        z-index: -1;
        pointer-events: none;
        background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0, 0, 0, 0.1) 2px, rgba(0, 0, 0, 0.1) 4px);
        background-size: 100% 4px;
        animation: crt-scan 20s linear infinite;
    }

    &::backdrop {
        background-color: transparent;
        -webkit-backdrop-filter: blur(2px);
        backdrop-filter: blur(2px);
        transition:
            background-color 0.4s ease,
            display 0.4s ease allow-discrete,
            overlay 0.4s ease allow-discrete;
    }

    &[open]::backdrop {
        background-color: rgba(0, 0, 0, 0.6);
    }

    & > * {
        opacity: 0;
    }

    &[open] > *:not([inert]) {
        animation: dialog-content-in 0.4s ease 0.58s both;
    }

    &[open] *[inert] {
        animation: dialog-content-inert 0.4s ease 0.58s both;
    }

    @starting-style {
        &[open] {
            opacity: 0;
            --corner-length: 0px;
        }

        &[open]::backdrop {
            background-color: transparent;
        }
    }
}

/* content */
dialog {
    .top-bar {
        display: flex;
        height: calc(var(--size-xl) - 1px);
        border-bottom: 1px solid var(--color-primary);
        align-items: center;
    }
    .bottom-bar {
        display: flex;
        min-height: var(--size-lg);
        border-top: 1px solid var(--color-primary);
    }

    .close-button {
        position: absolute;
        top: -1px;
        right: -1px;
        width: var(--size-xl);
        height: var(--size-xl);
        border: 1px solid var(--color-primary);
        background: none;
        color: var(--color-primary);
        z-index: 1000;
    }
    .close-button:hover {
        background: var(--color-primary);
        color: var(--color-dark);
    }

    .title {
        margin: 0;
        padding: 0 1.25rem;
        height: calc(var(--size-xl) - 1px);
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: var(--text-lg);
        letter-spacing: 1px;
        border-bottom: 1px solid var(--color-primary);
    }

    .title, .subtitle, .subtitle-raw {
        font-family: "Orbitron", sans-serif;
        color: var(--color-primary);
        font-weight: 600;
        letter-spacing: 1px;
        margin: 0;
    }
    .subtitle, .subtitle-raw {
        font-size: var(--text-m);
        padding: var(--size-xs) var(--size-m);
    }
    .subtitle.subtitle-raw-2 {
        padding: 0;
        border-bottom: none;
    }

    .subtitle {
        line-height: var(--size-lg);
        border-bottom: 1px solid var(--color-primary);
        text-transform: uppercase;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .note {
        display: block;
        font-size: var(--text-xs);
        line-height: 1.618;
        border-left: 1px solid var(--color-primary);
        padding: var(--size-s) var(--size-m);
        background: color-mix(in srgb, var(--color-primary) 5%, transparent);
        color: var(--color-primary-light);
    }

    .readme {
        margin-top: 1rem;
        font-size: var(--text-xs);
    }

    > aside {
        width: 440px;
        max-width: 100%;
        border-right: 1px solid var(--color-primary);
        height: 100%;

        > div{
            overflow: auto;
        }

        > div:not(:first-child) .subtitle{
            border-top: 1px solid var(--color-primary);
        }
    }
}


/* copyable command block */
.code-block {
    display: flex;
    align-items: stretch;
    margin: 1rem 0;
}

code, .code-block {
    background-color: color-mix(in srgb, var(--color-primary-light) 15%, transparent);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

code {
    font-family: "Space Mono", monospace;
    font-weight: 400;
    font-size: inherit;
    border-radius: 5px;
    letter-spacing: 0.5px;
    white-space: nowrap;
    padding: 0 var(--size-xs);
    overscroll-behavior: none;
    max-height: 15vh;
}

.code-block code {
    flex: 1;
    padding: var(--size-m) var(--size-lg);
    background: none;
    border: none;
    color: var(--color-primary);
    overflow: auto;
    font-size: var(--text-m);
}

.copy-btn {
    flex-shrink: 0;
    height: auto;
    padding: 0 0.875rem;
    border: none;
    border-left: 1px solid var(--color-primary);
    background: none;
    color: color-mix(in srgb, var(--color-light) 40%, transparent);
    font-size: var(--text-xs);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.copy-btn:hover {
    background: color-mix(in srgb, var(--color-primary) 10%, transparent);
    color: var(--color-primary);
}

/* esp-web-tools install button */
esp-web-install-button {
    display: inline-block;
    border: 1px solid var(--color-primary);
    --esp-tools-button-color: transparent;
    --esp-tools-button-text-color: var(--color-primary);
    --esp-tools-button-border-radius: 0;
}

.serial-provision {
    display: flex;
    flex-direction: column;
    gap: var(--size-s);
    margin: var(--size-lg) 0 var(--size-s);
    padding-top: var(--size-m);
    border-top: 1px solid var(--color-primary-light);
    border-bottom: 1px solid var(--color-primary-light);
}

.serial-provision-fields {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--size-s);
    align-items: end;
}

.serial-provision label {
    display: flex;
    flex-direction: column;
    gap: var(--size-xs);
    font-size: var(--text-xs);
}

.serial-provision input,
.serial-provision button {
    width: 100%;
}

#serial-provision-message {
    min-height: 1.25rem;
    font-size: var(--text-xs);
}

#serial-provision-message.error {
    color: var(--color-error);
}



/* Devices list */
.device-item {
    display: grid;
    grid-template-columns: max-content 1fr max-content max-content;
    align-items: flex-start;
    gap: var(--size-s);
    line-height: 1.5;
    padding: var(--size-s) var(--size-s) var(--size-s) 0;

    & + .device-item {
        border-top: 1px solid var(--color-primary-light);
    }
}

.selected {
    background: color-mix(in srgb, var(--color-primary) 20%, transparent);
    border-left: 2px solid var(--color-primary);
}


/* Examples */


#examples-list button {
    height: 100%;
    padding: 0.5rem 1.25rem;
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    text-transform: uppercase;
    color: var(--color-primary-light);
}

#examples-list button:hover { color: var(--color-primary); }
#examples-list button.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* shared strip preview, drawn by every example */
#preview-wrap {
    min-height: 0;
    display: flex;
    padding: var(--size-m);
    align-items: center;
    justify-content: center;
}

#preview-canvas {
    display: block;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

#mapping-canvas {
    width: 100%;
    height: auto;
}

.example-wrap {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
}

.example-wrap canvas {
    display: block;
    max-height: 50vh;
    object-fit: contain;
}

.example-desc {
    margin: 0 0 1rem;
    padding-left: 0.625rem;
    border-left: 2px solid color-mix(in srgb, var(--color-primary) 30%, transparent);
    font-size: var(--text-xs);
    line-height: 1.7;
    letter-spacing: 0.3px;
    color: color-mix(in srgb, var(--color-light) 35%, transparent);
}

.slides-layout {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.slides-layout .controls-v {
    flex: 1;
}

.color-swatch {
    flex-shrink: 0;
    width: 7rem;
    height: 7rem;
    border: 1px solid var(--color-primary);
    background: #000;
    transition: background 0.1s ease, box-shadow 0.25s ease;
}

.examples-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--color-primary);
}

/* mapping */

/* Misc */

.proxy-status {
    color: var(--color-red);
    line-height: 1;
    filter: drop-shadow(0 0 2px var(--color-dark));
}
.proxy-status::after { content: "○"; transform: translateY(-1px); display: block; }
.proxy-status.online {
    color: var(--color-green);
}
.proxy-status.online::after { content: "●"; }

/* dialog sizing */

#flash-firmware-dialog,
#install-cli-dialog {
    width: 46rem;
}

#mapping-dialog { width: 90vw; height: 85vh; }
#live-preview-dialog { width: 80vw; height: 90vh; }

/* Animations */

@keyframes open-hud {
    0%   { transform: scaleY(0.01) scaleX(0.1); }
    45%  { transform: scaleY(1)    scaleX(0.1); }
    100% { transform: scaleY(1)    scaleX(1);   }
}

@keyframes crt-scan {
    from { background-position: 0 0; }
    to   { background-position: 0 100%; }
}

@keyframes dialog-content-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes dialog-content-inert {
    from { opacity: 0; }
    to   { opacity: .3; }
}

/* Responsive */

@media (max-width: 700px) {
    dialog {
        max-width: 90%;
        max-height: 90%;
        top: var(--size-m);
        bottom: auto;

        .close-button {
            position: fixed;
            left: 50%;
            transform: translateX(-50%);
            top: auto;
            top: calc(100% + var(--size-m));
            width: var(--size-lg);
            height: var(--size-lg);
            padding: 0;
        }

        .top-bar {
            border-top: 1px solid var(--color-primary);
        }
    }

    .flex-mq {
        flex-direction: column;
    }

    .serial-provision-fields {
        grid-template-columns: 1fr;
    }

    #live-preview-dialog {
        width: 90vw;
    }
}