:root {
    color-scheme: light;
    --color-primary: #0b5b5b;
    --color-on-primary: #ffffff;
    --color-primary-container: #c7f1ed;
    --color-on-primary-container: #003333;
    --color-secondary: #4a635f;
    --color-surface: #f7f4f0;
    --color-surface-variant: #e6e1dc;
    --color-on-surface: #1c1b1a;
    --color-on-surface-variant: #4b4540;
    --color-outline: #81766f;
    --color-outline-variant: #c4bcb4;
    --color-shadow: rgba(11, 15, 18, 0.2);
    --elevation-1: 0 1px 2px rgba(11, 15, 18, 0.12), 0 2px 6px rgba(11, 15, 18, 0.08);
    --elevation-2: 0 4px 12px rgba(11, 15, 18, 0.12), 0 10px 24px rgba(11, 15, 18, 0.08);
    --color-focus-ring: rgba(11, 91, 91, 0.22);
    --app-bar-bg: rgba(247, 244, 240, 0.9);

    --padding: 0.9rem;
    --gap: 0.75rem;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --accent: var(--color-surface);
    --accent-button: var(--color-surface-variant);
    --button-hover: #dcd5cf;
    --accent-highlight: rgba(11, 91, 91, 0.18);

    --selected: var(--color-primary);
    --selected-text: var(--color-on-primary);
    --selected-hover: #0a4f4f;

    --disabled: #ddd6cf;
    --disabled-text: #8e8379;

    --text-color: var(--color-on-surface);
    --text-muted: var(--color-on-surface-variant);
}

@media (prefers-color-scheme: dark) {
    :root {
        color-scheme: dark;
        --color-primary: #7bd8d0;
        --color-on-primary: #003737;
        --color-primary-container: #004f4d;
        --color-on-primary-container: #c7f1ed;
        --color-secondary: #9bb0ab;
        --color-surface: #121212;
        --color-surface-variant: #1f1c1a;
        --color-on-surface: #e6e1dc;
        --color-on-surface-variant: #c8c2bc;
        --color-outline: #9c9289;
        --color-outline-variant: #3a3531;
        --color-shadow: rgba(0, 0, 0, 0.4);
        --color-focus-ring: rgba(123, 216, 208, 0.25);
        --app-bar-bg: rgba(18, 18, 18, 0.9);

        --accent: var(--color-surface);
        --accent-button: var(--color-surface-variant);
        --button-hover: #282421;
        --accent-highlight: rgba(123, 216, 208, 0.12);

        --selected: var(--color-primary);
        --selected-text: var(--color-on-primary);
        --selected-hover: #9cf0e7;

        --disabled: #3a3531;
        --disabled-text: #b6ada5;

        --text-color: var(--color-on-surface);
        --text-muted: var(--color-on-surface-variant);
    }
}

[x-cloak] {
    display: none !important;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Bahnschrift", "Segoe UI Variable", "Segoe UI", "Candara", "Calibri", sans-serif;
    color: var(--text-color);
    background: radial-gradient(900px 600px at 8% -10%, rgba(11, 91, 91, 0.18), transparent 70%),
        radial-gradient(800px 560px at 110% 5%, rgba(214, 148, 89, 0.18), transparent 70%),
        var(--color-surface);
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(500px 240px at 15% 20%, rgba(11, 91, 91, 0.2), transparent 70%),
        radial-gradient(380px 320px at 85% 40%, rgba(11, 91, 91, 0.12), transparent 70%);
    opacity: 0.6;
    pointer-events: none;
    z-index: 0;
}

.page-shell {
    position: relative;
    z-index: 1;
    width: min(1120px, 92vw);
    margin: 0 auto;
    padding: 1.5rem 0 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-height: 100vh;
}

.app-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-outline-variant);
    background: var(--app-bar-bg);
    backdrop-filter: blur(16px);
    box-shadow: var(--elevation-1);
    position: sticky;
    top: 1rem;
    z-index: 10;
}

.app-bar__brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--color-surface-variant);
    display: grid;
    place-items: center;
    box-shadow: inset 0 0 0 1px var(--color-outline-variant);
}

.brand-logo {
    display: block;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.brand-title {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.brand-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.app-bar__actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.app-bar__actions button-component {
    min-height: 34px;
    padding: 0.4rem 0.9rem;
    font-size: 0.78rem;
}

.page-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.surface-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-outline-variant);
    padding: 1.6rem;
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
    box-shadow: var(--elevation-2);
    animation: card-rise 0.6s ease both;
}

#main-toolbox {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
}

@keyframes card-rise {
    from {
        opacity: 0;
        transform: translateY(18px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#logo-area.hero {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
    align-items: center;
}

.hero-logo {
    border-radius: 18px;
    padding: 8px;
    background: var(--color-primary-container);
    box-shadow: var(--elevation-1);
    animation: float-mark 6s ease-in-out infinite;
}

@keyframes float-mark {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-6px);
    }
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.hero-title {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
}

.hero-subtitle {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.95rem;
}

#download-area {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.field label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-muted);
}

#url-input {
    width: 100%;
    border-radius: 14px;
    border: 1px solid var(--color-outline);
    padding: 0.85rem 1rem;
    font-size: 1rem;
    background: var(--color-surface);
    color: var(--text-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

#url-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.field-support {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.action-row {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: stretch;
}

.av-wrapper {
    display: inline-flex;
    gap: 0.2rem;
    padding: 0.2rem;
    border-radius: 999px;
    background: var(--color-surface-variant);
    border: 1px solid var(--color-outline-variant);
    width: fit-content;
}

button-component {
    text-align: center;
    background: var(--color-surface-variant);
    color: var(--text-color);
    display: inline-flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    border-radius: var(--radius-lg);
    padding: 0.6rem 1.1rem;
    user-select: none;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
    border: 1px solid transparent;
    box-shadow: var(--elevation-1);
    min-height: 40px;
    font-weight: 600;
}

button-component:hover {
    background-color: var(--button-hover);
    transform: translateY(-1px);
}

button-component:active {
    transform: translateY(0);
}

button-component.btn--segment {
    background: transparent;
    color: var(--text-muted);
    box-shadow: none;
    border-radius: 999px;
    min-width: 96px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.78rem;
}

button-component.btn--primary {
    background: var(--color-primary);
    color: var(--color-on-primary);
    box-shadow: var(--elevation-2);
}

button-component.btn--primary:hover {
    background: var(--selected-hover);
}

button-component.box-outline,
button-component.btn--outlined {
    background: transparent;
    border-color: var(--color-outline);
    color: var(--text-color);
    box-shadow: none;
}

button-component.box-outline:hover,
button-component.btn--outlined:hover {
    background: var(--color-surface-variant);
}

button-component.selected {
    background-color: var(--selected);
    color: var(--selected-text);
    box-shadow: var(--elevation-1);
}

button-component.selected:hover {
    background-color: var(--selected-hover);
}

button-component.disabled {
    background-color: var(--disabled);
    color: var(--disabled-text);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    pointer-events: none;
}

#download-button {
    transition: opacity 0.2s ease-in-out;
    min-width: 160px;
}

#download-button.no-opacity {
    opacity: 0;
}

#download-button.red {
    color: #410e0b;
    background: #f9dedc;
    border-color: #f2b8b5;
}

#download-button.red:hover {
    background: #f2b8b5;
}

.helper-row-stack {
    display: grid;
}

.helper-row-stack > .helper-row {
    grid-area: 1 / 1;
}

.helper-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.helper-chip {
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
    border: 1px solid var(--color-outline-variant);
    background: var(--color-surface-variant);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.helper-chip--interactive {
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease,
        border-color 0.2s ease, box-shadow 0.2s ease;
}

.helper-chip--interactive:hover {
    background: var(--button-hover);
    border-color: var(--color-outline);
}

.helper-chip--active {
    background: var(--color-primary);
    color: var(--color-on-primary);
    border-color: var(--color-primary);
    box-shadow: var(--elevation-1);
}

.helper-chip--active:hover {
    background: var(--selected-hover);
    border-color: var(--selected-hover);
}

/* fade in + slide up */
.helper-enter {
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.helper-enter-from {
    opacity: 0;
    transform: translateY(8px);
}

.helper-enter-to {
    opacity: 1;
    transform: translateY(0);
}

/* fade out + slide down */
.helper-leave {
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.helper-leave-from {
    opacity: 1;
    transform: translateY(0);
}

.helper-leave-to {
    opacity: 0;
    transform: translateY(8px);
}

.page-footer {
    margin-top: auto;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}



.tabs-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.tab-buttons {
    display: flex;
    gap: 0.4rem;
    padding: 0.3rem;
    border-radius: 999px;
    background: var(--color-surface-variant);
}

.tab-button {
    padding: 0.45rem 1.1rem;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--text-muted);
    border-radius: 999px;
    transition: all 0.2s ease-in-out;
}

.tab-button.active {
    color: var(--color-on-primary);
    background: var(--color-primary);
    box-shadow: var(--elevation-1);
}

.tab-content .tab-pane {
    display: none;
    padding: 0.6rem 0;
}

.tab-content .tab-pane.active {
    display: block;
}

.about-content h2 {
    font-size: 1.1rem;
    margin-top: 1rem;
    margin-bottom: 0.4rem;
    color: var(--text-color);
}

.about-content p {
    line-height: 1.6;
    color: var(--text-muted);
}

.about-content hr {
    border: none;
    border-top: 1px solid var(--color-outline-variant);
    margin: 1.2rem 0;
}

.changelog-list {
    list-style: none;
    padding-left: 0;
    max-height: 200px;
    overflow-y: visible;
}

.changelog-list li {
    margin-bottom: 1rem;
}

.changelog-list li a {
    text-decoration: none;
    color: inherit;
}

.changelog-list li span a {
    color: #d2432c;
}

.changelog-list li strong {
    color: var(--text-color);
    display: block;
    font-weight: 600;
    transition: color 0.2s;
}

.changelog-list li a:hover strong {
    color: var(--color-primary);
}

.changelog-list li span {
    font-size: 0.8rem;
    color: var(--text-muted);
}



@media (min-width: 700px) {
    .action-row {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    #download-button {
        width: auto;
    }
}

@media (max-width: 699px) {
    #download-button {
        width: 100%;
    }

    .av-wrapper {
        width: 100%;
    }

    .av-wrapper button-component {
        flex: 1;
    }
}

@media (max-width: 560px) {
    #logo-area.hero {
        grid-template-columns: 1fr;
    }

    .hero-logo {
        justify-self: flex-start;
    }
}