:root,
[data-bs-theme="light"] {
    --bs-body-bg: #f5f8fa;
    --bs-body-color: #314252;
    --bs-emphasis-color: #17212b;
    --bs-secondary-color: #657786;
    --bs-border-color: #d9e1e7;
    --bs-border-color-translucent: #d9e1e7;
    --bs-secondary-bg: #f0f4f7;
    --bs-tertiary-bg: #ffffff;
    --app-surface-active: #e8eef2;
    --app-border-strong: #b8c6d1;
    --app-accent: #1686d9;
    --app-accent-hover: #0f6fb5;
    --app-btn-primary-bg: var(--app-accent);
    --app-btn-primary-shadow: 4px 4px 12px color-mix(in srgb, var(--app-accent) 38%, #a9c2d4), -3px -3px 10px #ffffff;
    --app-success: #23865d;
    --app-success-soft: #e4f4ec;
    --app-warning: #9b6a12;
    --app-warning-soft: #fff3d6;
    --app-danger: #cc3f4a;
    --app-danger-soft: #fde9eb;
    --app-shadow-raised: 6px 6px 15px #d4dde5, -6px -6px 15px #ffffff;
    --app-shadow-raised-small: 3px 3px 7px #d4dde5, -3px -3px 7px #ffffff;
    --app-shadow-inset: inset 3px 3px 6px #d4dde5, inset -3px -3px 6px #ffffff;
    --app-shadow-pressed: inset 2px 2px 5px #d4dde5, inset -2px -2px 5px #ffffff;
    --bs-body-font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --bs-body-font-size: 0.875rem;
    --bs-body-line-height: 1.5;
}

[data-bs-theme="dark"] {
    --bs-body-bg: #141c23;
    --bs-body-color: #d2d8de;
    --bs-emphasis-color: #eaeff4;
    --bs-secondary-color: #949da4;
    --bs-border-color: #28323a;
    --bs-border-color-translucent: #28323a;
    --bs-secondary-bg: #222a31;
    --bs-tertiary-bg: #1a232a;
    --app-surface-active: #26323c;
    --app-border-strong: #37444f;
    --app-accent: #00a1f7;
    --app-accent-hover: #32b5ff;
    --app-btn-primary-bg: var(--app-accent);
    --app-btn-primary-shadow: 4px 4px 13px color-mix(in srgb, var(--app-accent) 30%, #0a141b), -3px -3px 10px #26353f;
    --app-success: #53bd7f;
    --app-success-soft: #1a2e21;
    --app-warning: #e4ad44;
    --app-warning-soft: #352917;
    --app-danger: #f86b65;
    --app-danger-soft: #382220;
    --app-shadow-raised: 7px 7px 17px #0e151b, -6px -6px 15px #24313c;
    --app-shadow-raised-small: 3px 3px 8px #0e151b, -3px -3px 8px #24313c;
    --app-shadow-inset: inset 3px 3px 7px #0e151b, inset -3px -3px 7px #24313c;
    --app-shadow-pressed: inset 2px 2px 5px #0e151b, inset -2px -2px 5px #24313c;
}

body {
    text-rendering: optimizeLegibility;
}

.container {
    max-width: 45rem;
}

.app-navbar {
    background: var(--bs-body-bg);
}

.app-navbar .container {
    min-height: 3.75rem;
}

.app-brand {
    color: var(--bs-emphasis-color);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.app-brand:hover,
.app-brand:focus-visible {
    color: var(--bs-emphasis-color);
}

.header-action {
    --bs-btn-color: var(--bs-body-color);
    --bs-btn-bg: transparent;
    --bs-btn-border-color: var(--bs-border-color);
    --bs-btn-hover-color: var(--bs-emphasis-color);
    --bs-btn-hover-bg: var(--bs-secondary-bg);
    --bs-btn-hover-border-color: var(--app-border-strong);
    --bs-btn-active-color: var(--bs-emphasis-color);
    --bs-btn-active-bg: var(--app-surface-active);
    --bs-btn-active-border-color: var(--app-border-strong);
    min-height: 2rem;
    border-radius: 0.4rem;
    font-size: 0.8125rem;
    font-weight: 500;
}

.btn-youtube svg {
    color: #ff0033;
}

.btn-star svg {
    color: #fbca04;
}

.header-action:hover svg,
.header-action:focus-visible svg {
    color: currentColor;
}

[data-bs-theme="dark"] .header-action:hover,
[data-bs-theme="dark"] .header-action:focus-visible {
    --bs-btn-hover-color: #ffffff;
}

.header-theme-toggle {
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    background: transparent;
    color: var(--bs-secondary-color);
}

.header-theme-toggle:hover,
.header-theme-toggle:focus-visible {
    border: 0;
    background: transparent;
    color: var(--bs-emphasis-color);
}

.app-card {
    border: 1px solid var(--app-border-strong);
    border-radius: 0.625rem;
    background: var(--bs-tertiary-bg);
    box-shadow: none;
}

.workbench {
    overflow: hidden;
}

.field-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.field-heading {
    margin-bottom: 0.5rem;
}

.field-heading--providers {
    align-items: flex-end;
}

.field-meta {
    color: var(--bs-secondary-color);
    font-family: var(--bs-font-monospace);
    font-size: 0.75rem;
    font-variant-numeric: tabular-nums;
}

.form-section {
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--bs-border-color);
}

.form-section--first {
    padding-top: 0;
    margin-top: 0;
    border-top: 0;
}

.form-label {
    margin-bottom: 0.5rem;
    color: var(--bs-emphasis-color);
    font-size: 0.875rem;
    font-weight: 600;
}

.form-control {
    min-height: 2.75rem;
    border-color: var(--app-border-strong);
    border-radius: 0.375rem;
    background-color: var(--bs-body-bg);
    color: var(--bs-emphasis-color);
    box-shadow: none;
}

.form-control::placeholder {
    color: var(--bs-secondary-color);
    opacity: 0.75;
}

.form-control:hover {
    border-color: var(--bs-secondary-color);
}

.form-control:focus {
    border-color: var(--app-accent);
    background-color: var(--bs-body-bg);
    box-shadow: 0 0 0 0.18rem color-mix(in srgb, var(--app-accent) 22%, transparent);
}

.code-input {
    line-height: 1.6;
    resize: vertical;
}

.method-panel {
    margin-top: 1.5rem;
}

.input-type-selector {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.25rem;
    padding: 0.25rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 0.375rem;
    background: var(--bs-body-bg);
}

.input-type-selector .btn {
    min-height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid transparent;
    border-radius: 0.25rem;
    color: var(--bs-secondary-color);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    box-shadow: none;
}

.input-type-selector .btn:hover {
    border-color: transparent;
    background: transparent;
    color: var(--bs-emphasis-color);
}

.input-type-selector .btn-check:focus-visible + .btn {
    box-shadow: none;
    outline: 2px solid var(--app-accent);
    outline-offset: 1px;
}

.input-type-selector .btn-check:checked + .btn {
    border-color: color-mix(in srgb, var(--app-border-strong) 72%, transparent);
    background: color-mix(in srgb, var(--app-surface-active) 58%, var(--bs-body-bg));
    color: var(--bs-emphasis-color);
}

.provider-presets {
    justify-content: flex-end;
}

.provider-button {
    --bs-btn-color: var(--bs-body-color);
    --bs-btn-bg: var(--bs-body-bg);
    --bs-btn-border-color: var(--app-border-strong);
    --bs-btn-hover-color: var(--bs-emphasis-color);
    --bs-btn-hover-bg: var(--app-surface-active);
    --bs-btn-hover-border-color: var(--bs-secondary-color);
    --bs-btn-active-color: var(--bs-emphasis-color);
    --bs-btn-active-bg: var(--app-surface-active);
    --bs-btn-active-border-color: var(--bs-secondary-color);
    min-height: 2.5rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.6rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.provider-dot {
    width: 0.45rem;
    height: 0.45rem;
    flex: 0 0 auto;
    border-radius: 50%;
}

.provider-dot-cloudflare {
    background: #f59145;
}

.provider-dot-gcore {
    background: #fa6d3b;
}

.provider-dot-fastly {
    background: #f45a54;
}

.output-count-control {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--bs-border-color);
}

.output-count-input {
    width: 9rem;
    font-family: var(--bs-font-monospace);
    font-variant-numeric: tabular-nums;
}

.output-count-control .form-text {
    margin-top: 0.35rem;
    color: var(--bs-secondary-color);
    font-size: 0.75rem;
}

.form-text.field-message {
    margin-top: 0.4rem;
    color: var(--app-danger);
    font-size: 0.875rem;
    line-height: 1.4;
}

.form-control.is-invalid {
    border-color: var(--app-danger);
    background-image: none;
}

.form-control.is-invalid:focus {
    border-color: var(--app-danger);
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--app-danger) 20%, transparent);
}

.field-message:empty {
    display: none;
}

.form-message {
    margin: 0.75rem 0 0;
    padding: 0.75rem;
    border: 1px solid var(--app-border-strong);
    border-radius: 0.375rem;
    background: var(--bs-secondary-bg);
    color: var(--bs-body-color);
    font-size: 0.875rem;
}

.form-message.alert-success {
    border-color: var(--app-success);
    background: var(--app-success-soft);
    color: var(--bs-emphasis-color);
}

.form-message.alert-warning {
    border-color: var(--app-warning);
    background: var(--app-warning-soft);
    color: var(--bs-emphasis-color);
}

.form-message.alert-danger {
    border-color: var(--app-danger);
    background: var(--app-danger-soft);
    color: var(--bs-emphasis-color);
}

.form-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.form-actions.has-output {
    grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr));
}

.form-actions .btn {
    width: 100%;
    height: 2.75rem;
    min-height: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding-block: 0;
    line-height: 1;
    font-size: 0.875rem;
    font-weight: 500;
}

.generate-button,
.btn-primary {
    --bs-btn-bg: var(--app-btn-primary-bg);
    --bs-btn-border-color: var(--app-btn-primary-bg);
    --bs-btn-hover-bg: var(--app-accent-hover);
    --bs-btn-hover-border-color: var(--app-accent-hover);
    --bs-btn-active-bg: var(--app-accent);
    --bs-btn-active-border-color: var(--app-accent);
}

.form-actions .btn-outline-secondary {
    --bs-btn-color: var(--bs-body-color);
    --bs-btn-border-color: var(--app-border-strong);
    --bs-btn-hover-color: var(--bs-emphasis-color);
    --bs-btn-hover-bg: var(--app-surface-active);
    --bs-btn-hover-border-color: var(--bs-secondary-color);
    --bs-btn-active-color: var(--bs-emphasis-color);
    --bs-btn-active-bg: var(--app-surface-active);
    --bs-btn-active-border-color: var(--bs-secondary-color);
}

.app-card .btn {
    font-size: 0.875rem;
}

@media (max-width: 575.98px) {
    .app-brand {
        font-size: 0.95rem;
    }

    .field-heading--providers {
        flex-direction: column;
        align-items: stretch;
    }

    .provider-presets {
        justify-content: flex-start;
    }

    .output-count-input {
        width: 100%;
    }

    .form-actions.has-output {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-actions.has-output .generate-button {
        grid-column: 1 / -1;
    }
}

@media (min-width: 768px) {
    .app-card .card-body {
        padding: 2rem !important;
    }

    .input-type-selector {
        grid-template-columns: repeat(7, minmax(0, 1fr));
    }
}

/* Tactile surfaces: raised workbench and controls, recessed editable areas. */
body {
    background:
        radial-gradient(ellipse at 50% -18%, color-mix(in srgb, var(--app-accent) 5%, transparent), transparent 60%),
        var(--bs-body-bg);
}

.app-navbar {
    border-color: var(--bs-border-color) !important;
    background: color-mix(in srgb, var(--bs-body-bg) 94%, var(--bs-tertiary-bg));
}

.app-brand {
    letter-spacing: -0.035em;
}

.header-action {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
    transition: box-shadow 150ms ease, transform 150ms ease, color 150ms ease;
}

.header-action:hover {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.header-action:focus-visible {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.header-action:active {
    transform: translateY(1px);
    box-shadow: var(--app-shadow-pressed);
}

.header-theme-toggle {
    border-radius: 0.55rem;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
    transition: box-shadow 150ms ease, color 150ms ease;
}

.header-theme-toggle:hover {
    border: 0;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.header-theme-toggle:focus-visible {
    border: 0;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.header-theme-toggle:active {
    box-shadow: var(--app-shadow-pressed);
}

.header-theme-toggle:focus-visible,
.header-action:focus-visible,
.provider-button:focus-visible,
.form-actions .btn:focus-visible {
    outline: 2px solid var(--app-accent);
    outline-offset: 3px;
}

.app-card {
    border: 1px solid color-mix(in srgb, var(--bs-border-color) 32%, transparent);
    border-radius: 0.9rem;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised);
}

.field-meta {
    font-size: 0.75rem;
    letter-spacing: 0.015em;
}

.form-section {
    border-color: color-mix(in srgb, var(--bs-border-color) 72%, transparent);
}

.form-label {
    letter-spacing: -0.01em;
}

.form-control {
    border: 1px solid color-mix(in srgb, var(--bs-border-color) 30%, transparent);
    border-radius: 0.55rem;
    background-color: var(--bs-body-bg);
    box-shadow: var(--app-shadow-inset);
    transition: border-color 150ms ease, box-shadow 150ms ease, background-color 150ms ease;
}

.form-control:hover {
    border-color: var(--app-border-strong);
}

.form-control:focus {
    border-color: var(--app-accent);
    background-color: var(--bs-body-bg);
    box-shadow: 0 0 0 0.18rem color-mix(in srgb, var(--app-accent) 22%, transparent);
}

.code-input {
    line-height: 1.65;
    tab-size: 4;
}

.input-type-selector {
    gap: 0.35rem;
    padding: 0.4rem;
    border: 1px solid color-mix(in srgb, var(--bs-border-color) 30%, transparent);
    border-radius: 0.7rem;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-inset);
}

.input-type-selector > div {
    min-width: 0;
}

.input-type-selector .btn {
    min-width: 0;
    padding-inline: 0.35rem;
    border-radius: 0.45rem;
    transition: color 150ms ease, background-color 150ms ease, box-shadow 150ms ease, transform 150ms ease;
}

.input-type-selector .btn:hover {
    background: color-mix(in srgb, var(--app-surface-active) 52%, transparent);
}

.input-type-selector .btn-check:focus-visible + .btn {
    position: relative;
    z-index: 1;
    outline: 2px solid var(--app-accent);
    outline-offset: 1px;
    box-shadow: none;
}

.input-type-selector .btn-check:checked + .btn {
    border-color: color-mix(in srgb, var(--app-border-strong) 72%, transparent);
    background: color-mix(in srgb, var(--app-surface-active) 58%, var(--bs-body-bg));
    color: var(--bs-emphasis-color);
    box-shadow: var(--app-shadow-raised-small);
}

.input-type-selector .btn-check:checked + .btn:hover {
    background: color-mix(in srgb, var(--app-surface-active) 58%, var(--bs-body-bg));
}

.provider-button {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
    transition: box-shadow 150ms ease, transform 150ms ease, color 150ms ease;
}

.provider-button:hover {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.provider-button:focus-visible {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.provider-button:active {
    transform: translateY(1px);
    box-shadow: var(--app-shadow-pressed);
}

.output-count-control {
    border-color: color-mix(in srgb, var(--bs-border-color) 72%, transparent);
}

.form-control.is-invalid {
    border-color: var(--app-danger);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--app-danger) 35%, transparent);
}

.form-control.is-invalid:focus {
    border-color: var(--app-danger);
    box-shadow: 0 0 0 0.2rem color-mix(in srgb, var(--app-danger) 20%, transparent);
}

.form-text.field-message {
    font-weight: 500;
}

.form-message {
    border-color: color-mix(in srgb, var(--app-border-strong) 45%, transparent);
    border-radius: 0.55rem;
    box-shadow: var(--app-shadow-raised-small);
}

.form-message.alert-success,
.form-message.alert-warning,
.form-message.alert-danger {
    border-color: color-mix(in srgb, currentColor 30%, transparent);
    box-shadow: none;
}

.form-actions .btn {
    border-radius: 0.55rem;
    font-weight: 600;
    transition: box-shadow 150ms ease, transform 150ms ease, background-color 150ms ease;
}

.form-actions .generate-button {
    --bs-btn-color: #ffffff;
    --bs-btn-bg: var(--app-btn-primary-bg);
    --bs-btn-border-color: transparent;
    --bs-btn-hover-color: #ffffff;
    --bs-btn-hover-bg: var(--app-accent-hover);
    --bs-btn-hover-border-color: transparent;
    --bs-btn-active-color: #ffffff;
    --bs-btn-active-bg: var(--app-accent-hover);
    --bs-btn-active-border-color: transparent;
    --bs-btn-disabled-color: #ffffff;
    --bs-btn-disabled-bg: var(--app-border-strong);
    --bs-btn-disabled-border-color: transparent;
    flex: 1 1 11rem;
    padding: 0.65rem 1.5rem;
    border-color: transparent;
    background: linear-gradient(160deg, var(--app-accent-hover), var(--app-btn-primary-bg) 62%);
    color: #ffffff;
    box-shadow: var(--app-btn-primary-shadow);
}

.form-actions .generate-button:hover,
.form-actions .generate-button:focus-visible {
    border-color: transparent;
    color: #ffffff;
    box-shadow: var(--app-btn-primary-shadow);
    filter: brightness(1.06);
}

.form-actions .generate-button:active {
    transform: translateY(1px);
    border-color: transparent;
    background: linear-gradient(160deg, var(--app-accent-hover), var(--app-btn-primary-bg) 62%);
    color: #ffffff;
    box-shadow: var(--app-shadow-pressed);
    filter: none;
}

.form-actions .btn-outline-secondary {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.form-actions .btn-outline-secondary:hover,
.form-actions .btn-outline-secondary:focus-visible {
    border-color: transparent;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised-small);
}

.form-actions .btn-outline-secondary:active {
    transform: translateY(1px);
    box-shadow: var(--app-shadow-pressed);
}

.qr-modal {
    position: fixed;
    inset: 0;
    z-index: 1080;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.qr-modal-backdrop {
    position: absolute;
    inset: 0;
    background: color-mix(in srgb, #0b141b 62%, transparent);
    backdrop-filter: blur(2px);
}

.qr-modal-card {
    position: relative;
    width: min(22rem, 100%);
    padding: 1.1rem 1.1rem 1.25rem;
    border: 1px solid color-mix(in srgb, var(--bs-border-color) 32%, transparent);
    border-radius: 0.9rem;
    background: var(--bs-body-bg);
    box-shadow: var(--app-shadow-raised);
    text-align: center;
}

.qr-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
}

.qr-modal-title {
    margin: 0;
    color: var(--bs-emphasis-color);
    font-size: 1rem;
    font-weight: 650;
    letter-spacing: -0.01em;
}

.qr-modal-close {
    min-height: 2rem;
    min-width: 2rem;
    border-radius: 0.55rem;
    font-size: 0.85rem;
    line-height: 1;
}

.qr-modal-hint {
    margin: 0 0 0.9rem;
    color: var(--bs-secondary-color);
    font-size: 0.8rem;
    word-break: break-all;
}

.qr-code-box {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 13.5rem;
    margin: 0 auto 1rem;
    padding: 0.85rem;
    border-radius: 0.7rem;
    background: #ffffff;
    box-shadow: var(--app-shadow-inset);
}

.qr-code-box img,
.qr-code-box canvas,
.qr-code-box table {
    width: 12rem !important;
    height: 12rem !important;
}

.qr-modal-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .input-type-selector {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .app-card {
        border-radius: 0.75rem;
        box-shadow: var(--app-shadow-raised);
    }

    .input-type-selector {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .field-heading--providers {
        gap: 0.75rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}