:root {
    --md-sys-color-primary: #1b661b;
    --md-sys-color-on-primary: #ffffff;
    --md-sys-color-primary-container: #a3f19a;
    --md-sys-color-on-primary-container: #002200;
    --md-sys-color-secondary: #52634f;
    --md-sys-color-on-secondary: #ffffff;
    --md-sys-color-secondary-container: #d5e8cf;
    --md-sys-color-on-secondary-container: #101f10;
    --md-sys-color-tertiary: #38656a;
    --md-sys-color-on-tertiary: #ffffff;
    --md-sys-color-tertiary-container: #bcebef;
    --md-sys-color-on-tertiary-container: #002023;
    --md-sys-color-error: #ba1a1a;
    --md-sys-color-on-error: #ffffff;
    --md-sys-color-error-container: #ffdad6;
    --md-sys-color-on-error-container: #410002;
    --md-sys-color-background: #fdfdf5;
    --md-sys-color-on-background: #1a1c19;
    --md-sys-color-surface: #fdfdf5;
    --md-sys-color-on-surface: #1a1c19;
    --md-sys-color-surface-variant: #dfe4d8;
    --md-sys-color-on-surface-variant: #434940;
    --md-sys-color-outline: #73796f;
    --md-sys-color-shadow: #000000;
    --md-sys-color-inverse-surface: #2f312d;
    --md-sys-color-inverse-on-surface: #f1f1ea;
    --md-sys-color-inverse-primary: #88d481;

    --surface-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --surface-shadow-strong: 0 16px 40px rgba(0, 0, 0, 0.12);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --content-max: 1200px;
    --page-padding: clamp(12px, 2vw, 24px);
}

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

html {
    width: 100%;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    width: 100%;
    min-width: 320px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background:
        radial-gradient(circle at top, rgba(27, 102, 27, 0.05), transparent 30%),
        var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    overflow-x: hidden;
}

main {
    flex: 1 0 auto;
    width: 100%;
}

img,
svg,
canvas {
    max-width: 100%;
    display: block;
}

button,
input,
select,
textarea {
    font: inherit;
}

a {
    color: var(--md-sys-color-inverse-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--md-sys-color-secondary);
}

.white {
    color: var(--md-sys-color-on-primary);
}

.black {
    color: var(--md-sys-color-on-background);
}

.button,
button {
    appearance: none;
    min-width: 70px;
    border: 0;
    border-radius: 999px;
    padding: 10px 18px;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    cursor: pointer;
    transition: transform 0.15s ease, background-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.08);
}

.button:hover,
button:hover {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    box-shadow: var(--surface-shadow);
    transform: translateY(-1px);
}

.button:active,
button:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

.button:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(27, 102, 27, 0.28);
    outline-offset: 2px;
}

input,
select,
textarea {
    width: 100%;
    max-width: 100%;
    border-radius: 10px;
    border: 1px solid var(--md-sys-color-outline);
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

input:hover,
select:hover,
textarea:hover {
    border-color: var(--md-sys-color-secondary);
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 4px rgba(27, 102, 27, 0.12);
}

input[type="text"],
input[type="number"],
textarea {
    width: 200px;
    padding: 10px 12px;
}

textarea {
    min-height: 110px;
    resize: vertical;
}

select {
    width: fit-content;
    min-width: 50px;
    border-radius: var(--radius-lg);
    padding: 10px 12px;
    background: var(--md-sys-color-surface-variant);
}

select>option {
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
}

input[type="color"] {
    width: 100px;
    appearance: none;
    height: 42px;
    padding: 4px;
    background: var(--md-sys-color-surface-variant);
    cursor: pointer;
}

input[type="checkbox"],
input[type="radio"] {
    width: auto;
    margin: 0 8px 0 0;
    accent-color: var(--md-sys-color-primary);
}

input[type="file"] {
    width: 100%;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 13px;
}

input[type="file"]::file-selector-button {
    margin-right: 12px;
    border: 0;
    border-radius: 999px;
    padding: 9px 14px;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.15s ease;
}

input[type="file"]::file-selector-button:hover {
    background: #144d14;
    transform: translateY(-1px);
}

.hide {
    display: none !important;
}

.container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-inline: var(--page-padding);
}

.container>* {
    width: 100%;
    max-width: var(--content-max);
}

.row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    width: 100%;
    margin: 0;
}

.col {
    min-width: 0;
}

.qr-header,
.qr-footer {
    width: 100%;
    background: linear-gradient(180deg, #1f6e1f, var(--md-sys-color-primary));
    color: var(--md-sys-color-on-primary);
}

.row--qr-header {
    align-items: center;
    justify-content: space-between;
    gap: 15px;
}

.qr-logo {
    flex: 1;
}

.qr-logo__img {
    height: 48px;
    width: auto;
}

.qr-description {
    background: linear-gradient(180deg, #1f6e1f, var(--md-sys-color-primary));
    color: var(--md-sys-color-on-primary);
    text-align: center;
    padding: 0 0 5px;
    box-shadow: var(--surface-shadow);
}

.qr-description__lib-name {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 300;
    letter-spacing: 0.2px;
}

.qr-description p {
    margin: 0;
}

.row--body {
    display: grid;
    grid-template-columns: minmax(0, 1.65fr) minmax(300px, 0.95fr);
    align-items: start;
    gap: 20px;
    width: 100%;
}

.qr-form,
.qr-code-container {
    background: rgba(253, 253, 245, 0.88);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(115, 121, 111, 0.18);
    border-radius: var(--radius-lg);
    box-shadow: var(--surface-shadow);
}

.qr-form {
    padding: clamp(16px, 2.2vw, 24px);
    min-width: 0;
}

.qr-code-container {
    padding: clamp(16px, 2.2vw, 24px);
    position: sticky;
    top: 16px;
    align-self: start;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    min-width: 0;
}

.qr-code {
    width: 100%;
    max-width: 360px;
    padding: 1rem;
    border: 2px dotted var(--md-sys-color-primary);
    border-radius: 20px;
    background: var(--md-sys-color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.qr-code canvas,
.qr-code svg,
.qr-code img {
    max-width: 100%;
    height: auto;
}

.qr-download-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    width: 100%;
}

.options-export-group {
    margin-top: 20px;
}

.options-export-group .button,
.options-export-group button {
    width: 100%;
}

.accordion {
    display: block;
    width: 100%;
    text-align: left;
    border: 0;
    border-radius: var(--radius-lg);
    padding: 16px 18px;
    margin-bottom: 8px;
    background: linear-gradient(180deg, #e8ede2, var(--md-sys-color-surface-variant));
    color: var(--md-sys-color-on-surface-variant);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    position: relative;
}

.accordion::after {
    content: '\002B';
    font-weight: 700;
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
}

.accordion.active::after {
    content: "\2212";
}

.accordion:hover {
    background: linear-gradient(180deg, #dce8d6, var(--md-sys-color-secondary-container));
}

.panel {
    display: none;
    grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
    gap: 14px 16px;
    align-items: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.55);
    border: 1px solid rgba(115, 121, 111, 0.14);
    border-radius: 14px;
    margin-bottom: 10px;
}

.panel.panel--open {
    display: grid;
}

.panel>label {
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
}

.panel input,
.panel select,
.panel textarea {
    min-width: 0;
}

.buttons-container,
.space-between-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.buttons-container>*,
.space-between-container>* {
    min-width: 70px;
}

#form-image-file {
    flex: 1 1 240px;
}

#button-cancel {
    flex: 0 0 auto;
}

#form-data {
    width: 100%;
    min-height: 120px;
    resize: vertical;
}

#qr-extension {
    min-width: 110px;
    width: auto;
}

#export-options {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.qr-footer {
    margin-top: auto;
    text-align: center;
    padding: 16px 20px;
}

.qr-footer .col {
    padding-block: 0;
}

@media (max-width: 1024px) {
    .row--body {
        grid-template-columns: 1fr;
    }

    .qr-code-container {
        position: relative;
        top: auto;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .container {
        padding-inline: 12px;
    }


    .panel {
        grid-template-columns: 1fr;
        padding: 16px;
    }

    .panel>label {
        margin-top: 2px;
    }

    .qr-form,
    .qr-code-container {
        border-radius: 18px;
    }

    .row--qr-header {
        justify-content: center;
        text-align: center;
    }

    .qr-download-group {
        flex-direction: column;
        align-items: center;
    }

    .qr-download-group>*,
    .buttons-container>*,
    .space-between-container>* {
        width: 100%;
    }

    #qr-extension {
        width: 100%;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 15px;
    }

    .qr-description {
        padding: 8px ;
    }

    .qr-description__lib-name {
        font-size: 1.9rem;
    }

    .accordion {
        padding: 14px 16px;
    }

    .qr-code {
        max-width: 100%;
        padding: 0.85rem;
    }

    .button,
    button {
        width: 100%;
    }

    input[type="file"]::file-selector-button {
        width: 100%;
        margin-right: 0;
        margin-bottom: 10px;
    }
}