/* UUID Generator
-------------------------------------- */

.uuidgen-page {
    --uuidgen-accent: #4f46e5;
    --uuidgen-accent-90: #4f46e5e6;
    --uuidgen-accent-dark: #4338ca;
    --uuidgen-accent-light: color-mix(in srgb, #4f46e5 10%, transparent);
    --uuidgen-border: var(--flex-gray-15, rgba(0, 0, 0, 0.08));
    --uuidgen-surface: var(--solid-white, #fff);
    --uuidgen-soft: #f3f4f6;
    --uuidgen-radius: var(--round-7, 7px);
    --uuidgen-transition: var(--effect, 0.25s ease);
    position: relative;
    padding: 36px 0 80px;
}

/* Hero
-------------------------------------- */

.uuidgen-hero {
    max-width: 800px;
    margin: 0 auto;
    padding: 18px 0 28px;
    text-align: center;
}

.uuidgen-title {
    margin-bottom: 12px;
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.uuidgen-subtitle {
    max-width: 640px;
    margin: 0 auto;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    line-height: 1.65;
    color: var(--excerpt-color);
}

/* Card
-------------------------------------- */

.uuidgen-tool-section {
    max-width: 820px;
    margin: 0 auto 28px;
}

.uuidgen-card {
    border: 1px solid #ddd;
    border-radius: 16px;
    background: var(--uuidgen-surface);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03), 0 6px 24px rgba(0, 0, 0, 0.07);
    padding: 32px 32px 28px;
}

/* Tabs
-------------------------------------- */

.uuidgen-tabs {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--uuidgen-soft);
    border-radius: 12px;
    margin-bottom: 14px;
}

.uuidgen-tab {
    flex: 1;
    padding: 10px 12px;
    font-family: var(--btn-family);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--body-fcolor, #555);
    background: transparent;
    border: 0;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--uuidgen-transition);
    line-height: 1;
}

.uuidgen-tab:hover {
    color: var(--uuidgen-accent);
    background: transparent;
}

.uuidgen-tab.is-active {
    color: #fff;
    background: var(--uuidgen-accent);
    box-shadow: 0 2px 6px color-mix(in srgb, var(--uuidgen-accent) 30%, transparent);
}

.uuidgen-tab:focus-visible {
    outline: 2px solid var(--uuidgen-accent);
    outline-offset: 2px;
}

.uuidgen-version-desc {
    margin: 0 0 22px;
    padding: 10px 14px;
    font-size: 0.88rem;
    color: var(--excerpt-color, #666);
    background: var(--uuidgen-accent-light);
    border-left: 3px solid var(--uuidgen-accent);
    border-radius: 6px;
    line-height: 1.5;
}

/* Controls Rows
-------------------------------------- */

.uuidgen-controls {
    margin-bottom: 24px;
}

.uuidgen-row {
    display: flex;
    align-items: center;
    padding: 18px 0;
    border-bottom: 1px solid var(--uuidgen-border);
    gap: 16px;
}

.uuidgen-row:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.uuidgen-row:first-child {
    padding-top: 0;
}

.uuidgen-row-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--headline-fcolor, #333);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Count
-------------------------------------- */

.uuidgen-qty-wrap {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.uuidgen-count-input {
    width: 64px;
    padding: 8px 10px;
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 1rem;
    font-weight: 700;
    text-align: center;
    color: var(--headline-fcolor, #111);
    background: var(--uuidgen-surface);
    border: 1px solid #e5e7eb;
    border-radius: var(--uuidgen-radius);
    transition: border-color 0.2s;
    -moz-appearance: textfield;
    appearance: textfield;
}

.uuidgen-count-input::-webkit-outer-spin-button,
.uuidgen-count-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.uuidgen-count-input:focus {
    outline: none;
    border-color: var(--uuidgen-accent);
    box-shadow: 0 0 0 3px var(--uuidgen-accent-light);
}

.uuidgen-circle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    padding: 0;
    color: var(--body-fcolor, #666);
    background: transparent;
    border: 2px solid #d0d4db;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--uuidgen-transition);
    flex-shrink: 0;
}

.uuidgen-circle-btn svg {
    width: 16px;
    height: 16px;
}

.uuidgen-circle-btn:hover {
    color: var(--uuidgen-accent);
    border-color: var(--uuidgen-accent);
}

.uuidgen-circle-btn-sm {
    width: 32px;
    height: 32px;
}

.uuidgen-circle-btn-sm svg {
    width: 12px;
    height: 12px;
}

/* Format Checkboxes
-------------------------------------- */

.uuidgen-formats {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-left: auto;
}

.uuidgen-charset {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.uuidgen-charset input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.uuidgen-checkmark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: 2px solid #d0d4db;
    border-radius: 6px;
    background: var(--uuidgen-surface);
    transition: all 0.2s;
    flex-shrink: 0;
}

.uuidgen-checkmark::after {
    content: '';
    display: block;
    width: 6px;
    height: 11px;
    border: solid #fff;
    border-width: 0 2.5px 2.5px 0;
    transform: rotate(45deg);
    margin-top: -2px;
    opacity: 0;
    transition: opacity 0.15s;
}

.uuidgen-charset input:checked ~ .uuidgen-checkmark {
    background: var(--uuidgen-accent);
    border-color: var(--uuidgen-accent);
}

.uuidgen-charset input:checked ~ .uuidgen-checkmark::after {
    opacity: 1;
}

.uuidgen-charset input:focus-visible ~ .uuidgen-checkmark {
    outline: 2px solid var(--uuidgen-accent);
    outline-offset: 2px;
}

.uuidgen-charset-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--headline-fcolor, #333);
}

.uuidgen-charset input:not(:checked) ~ .uuidgen-charset-label {
    opacity: 0.55;
}

/* Primary Action
-------------------------------------- */

.uuidgen-actions {
    display: flex;
    justify-content: center;
}

.uuidgen-generate {
    padding: 14px 44px;
    font-family: var(--btn-family);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    color: #fff;
    background: var(--uuidgen-accent);
    border: 0;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--uuidgen-transition);
    line-height: 1;
}

.uuidgen-generate:hover {
    background: var(--uuidgen-accent-dark);
    box-shadow: 0 4px 14px color-mix(in srgb, var(--uuidgen-accent) 35%, transparent);
}

.uuidgen-generate:focus-visible {
    outline: 2px solid var(--uuidgen-accent);
    outline-offset: 3px;
}

/* Output
-------------------------------------- */

.uuidgen-output {
    margin-top: 24px;
    padding-top: 22px;
    border-top: 1px solid var(--uuidgen-border);
}

.uuidgen-output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.uuidgen-output-title {
    font-family: var(--meta-family);
    font-size: var(--meta-fsize, 0.78rem);
    font-weight: var(--meta-b-fweight, 600);
    color: var(--excerpt-color, #888);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.uuidgen-output-actions {
    display: flex;
    gap: 8px;
}

.uuidgen-secondary {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--uuidgen-accent);
    background: var(--uuidgen-accent-light);
    border: 1px solid color-mix(in srgb, var(--uuidgen-accent) 20%, transparent);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--uuidgen-transition);
}

.uuidgen-secondary:hover {
    background: color-mix(in srgb, var(--uuidgen-accent) 16%, transparent);
}

.uuidgen-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.uuidgen-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: #fafbfc;
    border: 1px solid var(--uuidgen-border);
    border-radius: 10px;
    transition: background 0.15s;
}

.uuidgen-item:hover {
    background: #f2f4f6;
}

.uuidgen-item-num {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--excerpt-color, #aaa);
    min-width: 22px;
}

.uuidgen-item-text {
    flex: 1;
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--headline-fcolor, #111);
    word-break: break-all;
    line-height: 1.5;
    user-select: all;
}

.uuidgen-item-copy {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--body-fcolor, #888);
    background: transparent;
    border: 1px solid var(--uuidgen-border);
    border-radius: 14px;
    cursor: pointer;
    transition: var(--uuidgen-transition);
    white-space: nowrap;
}

.uuidgen-item-copy:hover {
    color: var(--uuidgen-accent);
    border-color: var(--uuidgen-accent);
}

.uuidgen-item-copy.is-copied {
    color: #00b894;
    border-color: #00b894;
}

/* SEO / FAQ
-------------------------------------- */

.uuidgen-seo-content {
    margin-top: 54px;
    padding-top: 36px;
    border-top: 1px solid var(--uuidgen-border);
}

.uuidgen-faq {
    margin-top: 54px;
    padding-top: 36px;
    border-top: 1px solid var(--uuidgen-border);
}

.uuidgen-faq-inner {
    padding: 0;
}

.uuidgen-faq-label {
    display: inline-block;
    margin-bottom: 6px;
    padding: 3px 12px;
    font-family: var(--meta-family);
    font-size: var(--meta-fsize);
    font-weight: var(--meta-b-fweight, 600);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--uuidgen-accent);
    background: var(--uuidgen-accent-light);
    border-radius: 20px;
}

.uuidgen-faq-title {
    margin-bottom: 24px;
    font-size: clamp(1.5rem, 2.5vw, 2rem);
}

.uuidgen-faq-list {
    position: relative;
}

.uuidgen-faq-item {
    border-bottom: 1px solid var(--uuidgen-border);
}

.uuidgen-faq-item:last-child {
    border-bottom: none;
}

.uuidgen-faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 0;
    text-align: left;
    color: inherit;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    gap: 20px;
    cursor: pointer;
}

.uuidgen-faq-question:hover,
.uuidgen-faq-question:focus {
    color: var(--uuidgen-accent);
    background: transparent;
    box-shadow: none;
}

.uuidgen-faq-question-text {
    font-family: var(--h4-family);
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: var(--h4-fweight, 700);
    line-height: 1.45;
}

.uuidgen-faq-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    color: var(--uuidgen-accent);
    border: 1px solid var(--uuidgen-border);
    border-radius: 50%;
    background: var(--uuidgen-accent-light);
    transition: var(--uuidgen-transition);
}

.uuidgen-faq-toggle svg {
    width: 14px;
    height: 14px;
    transition: transform 0.2s ease;
}

.uuidgen-faq-item.uuidgen-faq-open .uuidgen-faq-toggle svg {
    transform: rotate(180deg);
}

.uuidgen-faq-answer {
    display: none;
    padding-bottom: 18px;
}

.uuidgen-faq-item.uuidgen-faq-open .uuidgen-faq-answer {
    display: block;
}

.uuidgen-faq-item:first-child .uuidgen-faq-answer {
    display: block;
}

.uuidgen-faq-item:first-child .uuidgen-faq-toggle svg {
    transform: rotate(180deg);
}

.uuidgen-faq-item:first-child:not(.uuidgen-faq-open):not(.uuidgen-faq-touched) .uuidgen-faq-answer {
    display: block;
}

.uuidgen-faq-item:first-child:not(.uuidgen-faq-open).uuidgen-faq-touched .uuidgen-faq-answer {
    display: none;
}

.uuidgen-faq-item:first-child:not(.uuidgen-faq-open).uuidgen-faq-touched .uuidgen-faq-toggle svg {
    transform: rotate(0deg);
}

.uuidgen-faq-answer-inner {
    max-width: 840px;
    color: var(--excerpt-color);
    line-height: 1.7;
    font-size: 0.95rem;
}

.uuidgen-faq-answer-inner p {
    margin: 0;
}

/* Toast
-------------------------------------- */

.uuidgen-toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 100000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.uuidgen-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    background: var(--dark-accent, #191c20);
    border-radius: var(--uuidgen-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    pointer-events: auto;
    animation: uuidgenToastIn 0.3s ease;
}

.uuidgen-toast.uuidgen-toast-out {
    animation: uuidgenToastOut 0.25s ease forwards;
}

@keyframes uuidgenToastIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes uuidgenToastOut {
    to { opacity: 0; transform: translateY(10px); }
}

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

@media (max-width: 1024px) {
    .uuidgen-page { padding-top: 28px; }
}

@media (max-width: 767px) {
    .uuidgen-page {
        padding: 18px 0 56px;
    }

    .uuidgen-hero {
        padding: 24px 0 20px;
    }

    .uuidgen-card {
        padding: 24px 18px 20px;
    }

    .uuidgen-tabs {
        gap: 2px;
    }

    .uuidgen-tab {
        padding: 9px 6px;
        font-size: 0.85rem;
    }

    .uuidgen-row {
        flex-wrap: wrap;
    }

    .uuidgen-formats {
        margin-left: 0;
        gap: 14px;
    }

    .uuidgen-qty-wrap {
        margin-left: 0;
    }

    .uuidgen-generate {
        width: 100%;
    }

    .uuidgen-output-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .uuidgen-item {
        flex-wrap: wrap;
        gap: 8px;
    }

    .uuidgen-item-text {
        width: 100%;
        order: 2;
    }

    .uuidgen-item-copy {
        order: 1;
        margin-left: auto;
    }

    .uuidgen-seo-content {
        margin-top: 42px;
    }

    .uuidgen-faq {
        margin-top: 42px;
    }

    .uuidgen-toast-container {
        bottom: 12px;
        right: 12px;
        left: 12px;
    }
}