/* Barcode & QR Code Generator — Codepool demo styles.

   Visual language follows the Dynamsoft style guide
   (https://dynamsoft.github.io/styleguide/style-guide.html):
     - brand orange  #FE8E14  (CTA / accent only)
     - brand gray    #323234  (headings, body copy)
     - grays         #606060 #999999 #CCCCCC #DDDDDD #F5F5F5
     - headings      Oswald        body copy  Open Sans

   Only the page chrome is branded; the barcodes themselves are rendered
   black on white so they stay scannable. */

@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700&family=Oswald:wght@300;400;500&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand */
    --dy-orange: #fe8e14;
    --dy-orange-hover: #e07d0b;
    --dy-orange-tint: #fff8ee;
    --dy-orange-edge: #f6c893;

    /* Neutrals */
    --dy-gray-900: #323234;
    --dy-gray-700: #606060;
    --dy-gray-500: #999999;
    --dy-gray-300: #cccccc;
    --dy-gray-200: #dddddd;
    --dy-gray-100: #eeeeee;
    --dy-gray-50: #f5f5f5;

    /* Accent used for inline text links, so orange stays reserved for CTAs */
    --dy-link: #306877;
    --dy-link-hover: #27555f;

    /* Error state (validation / render failures) */
    --dy-error: #b3261e;
    --dy-error-tint: #fdf2f1;
    --dy-error-edge: #f0c9c6;

    --white: #ffffff;

    --font-heading: 'Oswald', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Open Sans', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;

    --radius: 6px;
    --radius-sm: 4px;
    --shell: 1200px;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--dy-gray-900);
    background: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------------------------------------------------------------------------
   Corporate header — logo left, product name, orange trial CTA right
   --------------------------------------------------------------------------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--white);
    border-bottom: 1px solid var(--dy-gray-200);
}

.site-header-inner {
    max-width: var(--shell);
    margin: 0 auto;
    padding: 0 1.5rem;
    min-height: 68px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    text-decoration: none;
    border-radius: var(--radius-sm);
}

.brand-logo {
    display: block;
    height: 26px;
    width: auto;
}

.brand-divider {
    width: 1px;
    height: 26px;
    background: var(--dy-gray-200);
}

.brand-product {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--dy-gray-700);
    white-space: nowrap;
}

.header-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Scoped to .nav-link so it never overrides the CTA button's own colors. */
.header-nav .nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dy-gray-700);
    text-decoration: none;
    white-space: nowrap;
}

.header-nav .nav-link:hover {
    color: var(--dy-orange);
}

/* ---------------------------------------------------------------------------
   Page intro
   --------------------------------------------------------------------------- */

/* NOTE: body is a column flex container (to pin the footer to the bottom), and
   a flex item with `margin: auto` on the cross axis loses `align-items:
   stretch` — it shrinks to its content width instead of filling the row. Every
   centered shell below therefore needs an explicit `width: 100%` so that
   `max-width` + `margin: 0 auto` still centers a full-width block. */

.page-intro {
    width: 100%;
    max-width: var(--shell);
    margin: 0 auto;
    padding: 3rem 1.5rem 2.25rem;
}

.page-intro h1 {
    font-family: var(--font-heading);
    font-size: clamp(1.9rem, 4vw, 2.5rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--dy-gray-900);
    margin-bottom: 0.75rem;
}

.page-intro p {
    font-size: 1.0625rem;
    color: var(--dy-gray-700);
    max-width: 62ch;
}

/* ---------------------------------------------------------------------------
   Tip / notice callout
   --------------------------------------------------------------------------- */

.notice-banner {
    width: 100%;
    max-width: var(--shell);
    margin: 0 auto 2.5rem;
    padding: 1rem 1.25rem;
    background: var(--dy-orange-tint);
    border: 1px solid var(--dy-orange-edge);
    border-left: 4px solid var(--dy-orange);
    border-radius: var(--radius-sm);
    color: var(--dy-gray-900);
    font-size: 0.9rem;
    line-height: 1.6;
    display: flex;
    gap: 0.75rem;
}

.notice-banner svg {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    margin-top: 1px;
    color: var(--dy-orange-hover);
}

.notice-banner strong {
    display: block;
    font-weight: 700;
    margin-bottom: 0.15rem;
}

/* ---------------------------------------------------------------------------
   Layout
   --------------------------------------------------------------------------- */

.container {
    width: 100%;
    max-width: var(--shell);
    margin: 0 auto;
    padding: 0 1.5rem;
    flex: 1 0 auto;
}

.card {
    background: var(--white);
    border: 1px solid var(--dy-gray-200);
    border-radius: var(--radius);
    margin-bottom: 2rem;
    overflow: hidden;
}

.card-header {
    padding: 1.15rem 1.5rem 0.9rem;
    background: var(--dy-gray-50);
    border-bottom: 1px solid var(--dy-gray-200);
}

.card-header h2 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: 0.01em;
    color: var(--dy-gray-900);
    padding-bottom: 0.6rem;
    position: relative;
}

.card-header h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 32px;
    height: 2px;
    background: var(--dy-orange);
}

.card-body {
    padding: 1.75rem 1.5rem;
}

.card-body p {
    margin-bottom: 0.9rem;
}

.card-body p:last-child {
    margin-bottom: 0;
}

/* ---------------------------------------------------------------------------
   Forms
   --------------------------------------------------------------------------- */

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.form-row:last-of-type {
    margin-bottom: 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dy-gray-900);
    margin-bottom: 0.4rem;
    display: block;
}

.form-control {
    width: 100%;
    padding: 0.65rem 0.8rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--dy-gray-900);
    background: var(--white);
    border: 1px solid var(--dy-gray-300);
    border-radius: var(--radius-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    min-width: 0;
}

.form-control:hover {
    border-color: var(--dy-gray-500);
}

.form-control:focus {
    outline: none;
    border-color: var(--dy-orange);
    box-shadow: 0 0 0 3px rgba(254, 142, 20, 0.18);
}

select.form-control {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23606060' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.7rem center;
    background-size: 1.15rem;
    padding-right: 2.4rem;
    appearance: none;
}

/* ---------------------------------------------------------------------------
   Buttons — orange solid for the primary action, outlined for the rest
   --------------------------------------------------------------------------- */

.button-group {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.8rem 1.6rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn svg {
    flex: 0 0 auto;
    width: 1.05em;
    height: 1.05em;
}

.button-group .btn {
    flex: 1 1 0;
    min-width: 170px;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(254, 142, 20, 0.35);
}

.btn-primary {
    background: var(--dy-orange);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--dy-orange-hover);
}

.btn-secondary {
    background: var(--white);
    color: var(--dy-gray-900);
    border-color: var(--dy-gray-300);
}

.btn-secondary:hover {
    background: var(--dy-gray-50);
    border-color: var(--dy-gray-900);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ---------------------------------------------------------------------------
   Validation / render errors
   --------------------------------------------------------------------------- */

.form-error {
    margin-top: 1.25rem;
    padding: 0.9rem 1.1rem;
    background: var(--dy-error-tint);
    border: 1px solid var(--dy-error-edge);
    border-left: 4px solid var(--dy-error);
    border-radius: var(--radius-sm);
    color: var(--dy-error);
    font-size: 0.9rem;
    line-height: 1.55;
    display: none;
}

.form-error.is-visible {
    display: block;
}

/* ---------------------------------------------------------------------------
   Canvas stage
   --------------------------------------------------------------------------- */

.canvas-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    background: var(--dy-gray-50);
    border: 1px solid var(--dy-gray-200);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    overflow-x: auto;
}

.canvas-wrapper canvas {
    max-width: 100%;
    height: auto;
    background: var(--white);
    border: 1px solid var(--dy-gray-200);
}

/* ---------------------------------------------------------------------------
   Symbology reference table
   --------------------------------------------------------------------------- */

.spec-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.spec-table caption {
    caption-side: top;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--dy-gray-900);
    padding-bottom: 0.6rem;
}

.spec-table th,
.spec-table td {
    text-align: left;
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--dy-gray-200);
    vertical-align: top;
}

.spec-table thead th {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--dy-gray-700);
    background: var(--dy-gray-50);
    border-bottom: 1px solid var(--dy-gray-300);
    white-space: nowrap;
}

.spec-table tbody tr:last-child td {
    border-bottom: none;
}

.spec-table td:first-child {
    font-weight: 600;
    white-space: nowrap;
}

.spec-table td.kind {
    color: var(--dy-gray-700);
    white-space: nowrap;
}

.spec-table code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--dy-gray-50);
    border: 1px solid var(--dy-gray-200);
    border-radius: 3px;
    padding: 1px 5px;
}

/* ---------------------------------------------------------------------------
   Hints and inline copy
   --------------------------------------------------------------------------- */

.hint {
    font-size: 0.85rem;
    color: var(--dy-gray-700);
    margin-top: 0.75rem;
    line-height: 1.6;
}

.hint.is-error {
    color: var(--dy-error);
}

.hint code,
.card-body code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--dy-gray-50);
    border: 1px solid var(--dy-gray-200);
    border-radius: 3px;
    padding: 1px 5px;
}

a {
    color: var(--dy-link);
    text-decoration: underline;
    text-underline-offset: 2px;
}

a:hover {
    color: var(--dy-link-hover);
}

.hint a {
    font-weight: 600;
}

/* ---------------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------------- */

.demo-footer {
    flex: 0 0 auto;
    margin-top: 3rem;
    background: var(--dy-gray-50);
    border-top: 1px solid var(--dy-gray-200);
    padding: 2rem 1.5rem;
}

.demo-footer-inner {
    max-width: var(--shell);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.demo-footer .disclaimer {
    font-size: 0.85rem;
    color: var(--dy-gray-700);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.demo-footer .disclaimer svg {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    color: var(--dy-orange-hover);
}

.demo-footer .footer-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 1.25rem;
    font-size: 0.9rem;
    color: var(--dy-gray-700);
}

.demo-footer .footer-cta {
    margin-left: auto;
}

/* ---------------------------------------------------------------------------
   Responsive
   --------------------------------------------------------------------------- */

/* Collapse the nav links first, but keep the trial CTA: on small screens the
   orange button is the main branding cue, so it must not disappear with them. */
@media (max-width: 900px) {
    .header-nav .nav-link {
        display: none;
    }

    .header-nav {
        gap: 0;
    }
}

@media (max-width: 640px) {

    .brand-product,
    .brand-divider {
        display: none;
    }
}

@media (max-width: 768px) {
    .page-intro {
        padding: 2rem 1rem 1.5rem;
    }

    .container {
        padding: 0 1rem;
    }

    .card-body {
        padding: 1.25rem 1rem;
    }

    .card-header {
        padding: 1rem 1rem 0.75rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 1rem;
    }

    .button-group {
        flex-direction: column;
    }

    .button-group .btn {
        width: 100%;
    }

    .canvas-wrapper {
        padding: 0.75rem;
    }

    .demo-footer .footer-cta {
        margin-left: 0;
    }

    .spec-table {
        font-size: 0.82rem;
    }

    .spec-table th,
    .spec-table td {
        padding: 0.5rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .page-intro h1 {
        font-size: 1.6rem;
    }

    .card-header h2 {
        font-size: 1.05rem;
    }

    .form-control {
        font-size: 0.9rem;
    }

    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }

    .button-group .btn {
        min-width: 0;
    }
}

/* ---------------------------------------------------------------------------
   Print
   --------------------------------------------------------------------------- */

@media print {

    .site-header,
    .demo-footer,
    .button-group,
    .form-error,
    .page-intro p {
        display: none;
    }

    body {
        background: var(--white);
    }

    .card {
        break-inside: avoid;
    }

    .canvas-wrapper {
        border: none;
        background: var(--white);
        padding: 0;
    }
}