/* Color Converter
-------------------------------------- */

.colorcv-page {
    --colorcv-accent: #f97316;
    --colorcv-accent-dark: #ea580c;
    --colorcv-accent-light: color-mix(in srgb, #f97316 12%, transparent);
    --colorcv-border: var(--flex-gray-15, rgba(0, 0, 0, 0.08));
    --colorcv-surface: var(--solid-white, #fff);
    --colorcv-soft: #f3f4f6;
    --colorcv-radius: var(--round-7, 7px);
    --colorcv-transition: var(--effect, 0.25s ease);
    position: relative;
    padding: 36px 0 80px;
}

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

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

.colorcv-title {
    margin-bottom: 12px;
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.colorcv-subtitle {
    max-width: 680px;
    margin: 0 auto;
    font-size: clamp(0.9rem, 1.5vw, 1rem);
    line-height: 1.65;
    color: var(--excerpt-color);
}

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

.colorcv-tool-section {
    max-width: 880px;
    margin: 0 auto 28px;
}

.colorcv-card {
    border: 1px solid #ddd;
    border-radius: 16px;
    background: var(--colorcv-surface);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.03), 0 6px 24px rgba(0, 0, 0, 0.07);
    padding: 28px 30px;
}

/* Swatch Row
-------------------------------------- */

.colorcv-swatch-row {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 20px;
    align-items: stretch;
    margin-bottom: 26px;
}

.colorcv-swatch {
    position: relative;
    height: 118px;
    border: 1px solid var(--colorcv-border);
    border-radius: 10px;
    background-color: #0ea5e9;
    background-image:
        linear-gradient(45deg, rgba(0, 0, 0, 0.06) 25%, transparent 25%, transparent 75%, rgba(0, 0, 0, 0.06) 75%),
        linear-gradient(45deg, rgba(0, 0, 0, 0.06) 25%, transparent 25%, transparent 75%, rgba(0, 0, 0, 0.06) 75%);
    background-size: 16px 16px;
    background-position: 0 0, 8px 8px;
    overflow: hidden;
}

.colorcv-swatch::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--colorcv-current, #0ea5e9);
    transition: background 0.18s;
}

.colorcv-swatch-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: 0;
}

.colorcv-picker-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 18px;
    font-family: var(--btn-family);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    background: var(--colorcv-accent);
    border: 2px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--colorcv-transition);
    line-height: 1.15;
    white-space: nowrap;
    box-sizing: border-box;
}

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

.colorcv-picker-btn svg {
    width: 18px;
    height: 18px;
}

.colorcv-picker-btn:focus-within {
    outline: 2px solid var(--colorcv-accent);
    outline-offset: 3px;
}

.colorcv-native-picker {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    border: 0;
    padding: 0;
}

.colorcv-page .colorcv-card input.colorcv-input {
    width: 100%;
    padding: 14px 18px;
    margin: 0;
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.15;
    color: #111;
    background: #f3f4f6;
    border: 2px solid #9ca3af;
    border-radius: 10px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
    transition: border-color 0.15s, box-shadow 0.15s, background-color 0.15s;
    box-sizing: border-box;
}

.colorcv-page .colorcv-card input.colorcv-input:hover {
    border-color: #6b7280;
    background: #fff;
}

.colorcv-page .colorcv-card input.colorcv-input:focus {
    outline: none;
    background: #fff;
    border-color: var(--colorcv-accent);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04), 0 0 0 3px var(--colorcv-accent-light);
}

.colorcv-page .colorcv-card input.colorcv-input.is-invalid {
    border-color: #dc2626;
    background: rgba(220, 38, 38, 0.06);
}

.colorcv-page .colorcv-card input.colorcv-input::placeholder {
    color: #6b7280;
    opacity: 0.85;
}

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

.colorcv-output-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    margin-bottom: 28px;
}

.colorcv-output {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: #fafbfc;
    border: 1px solid var(--colorcv-border);
    border-radius: 10px;
    min-height: 44px;
    transition: background 0.15s;
}

.colorcv-output:hover {
    background: #f2f4f6;
}

.colorcv-output-label {
    font-family: var(--meta-family);
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--excerpt-color, #777);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.colorcv-output-value {
    min-width: 0;
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--headline-fcolor, #111);
    word-break: break-all;
    line-height: 1.4;
    user-select: all;
}

.colorcv-output-value:empty::before {
    content: '—';
    color: var(--excerpt-color, #bbb);
    font-weight: 400;
}

.colorcv-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(--colorcv-border);
    border-radius: 14px;
    cursor: pointer;
    transition: var(--colorcv-transition);
    white-space: nowrap;
}

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

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

/* Sliders
-------------------------------------- */

.colorcv-sliders {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding-top: 22px;
    border-top: 1px solid var(--colorcv-border);
}

.colorcv-slider-group-alpha {
    grid-column: 1 / -1;
}

.colorcv-slider-title {
    margin: 0 0 10px;
    font-family: var(--meta-family);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--excerpt-color, #888);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.colorcv-slider-row {
    display: grid;
    grid-template-columns: 20px 1fr 70px;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.colorcv-slider-label {
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--headline-fcolor, #333);
    text-align: center;
}

.colorcv-slider {
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    background: var(--colorcv-soft);
    border-radius: 6px;
    outline: none;
    cursor: pointer;
}

.colorcv-slider[data-channel="r"] { background: linear-gradient(to right, #000, #ff0000); }
.colorcv-slider[data-channel="g"] { background: linear-gradient(to right, #000, #00ff00); }
.colorcv-slider[data-channel="b"] { background: linear-gradient(to right, #000, #0000ff); }
.colorcv-slider[data-channel="h"] {
    background: linear-gradient(to right, #ff0000, #ffff00, #00ff00, #00ffff, #0000ff, #ff00ff, #ff0000);
}
.colorcv-slider[data-channel="s"] {
    background: linear-gradient(to right, hsl(var(--colorcv-hue, 330), 0%, 50%), hsl(var(--colorcv-hue, 330), 100%, 50%));
}
.colorcv-slider[data-channel="l"] {
    background: linear-gradient(to right, hsl(var(--colorcv-hue, 330), var(--colorcv-sat, 81%), 0%), hsl(var(--colorcv-hue, 330), var(--colorcv-sat, 81%), 50%), hsl(var(--colorcv-hue, 330), var(--colorcv-sat, 81%), 100%));
}
.colorcv-slider[data-channel="a"] {
    background-color: #fff;
    background-image:
        linear-gradient(to right, transparent, var(--colorcv-current, #0ea5e9)),
        linear-gradient(45deg, rgba(0, 0, 0, 0.08) 25%, transparent 25%, transparent 75%, rgba(0, 0, 0, 0.08) 75%),
        linear-gradient(45deg, rgba(0, 0, 0, 0.08) 25%, transparent 25%, transparent 75%, rgba(0, 0, 0, 0.08) 75%);
    background-size: 100% 100%, 10px 10px, 10px 10px;
    background-position: 0 0, 0 0, 5px 5px;
}

.colorcv-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    border: 2px solid var(--colorcv-accent);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.15s;
}

.colorcv-slider::-webkit-slider-thumb:hover {
    transform: scale(1.12);
}

.colorcv-slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    border: 2px solid var(--colorcv-accent);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.colorcv-slider:focus-visible {
    outline: 2px solid var(--colorcv-accent);
    outline-offset: 4px;
}

.colorcv-num {
    width: 70px;
    padding: 6px 8px;
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    color: var(--headline-fcolor, #111);
    background: var(--colorcv-surface);
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    transition: border-color 0.2s;
    -moz-appearance: textfield;
    appearance: textfield;
}

.colorcv-num::-webkit-outer-spin-button,
.colorcv-num::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.colorcv-num:focus {
    outline: none;
    border-color: var(--colorcv-accent);
    box-shadow: 0 0 0 2px var(--colorcv-accent-light);
}

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

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

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

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

.colorcv-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(--colorcv-accent);
    background: var(--colorcv-accent-light);
    border-radius: 20px;
}

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

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

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

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

.colorcv-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;
}

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

.colorcv-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;
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

.colorcv-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(--colorcv-radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    pointer-events: auto;
    animation: colorcvToastIn 0.3s ease;
}

.colorcv-toast.colorcv-toast-out {
    animation: colorcvToastOut 0.25s ease forwards;
}

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

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

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

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

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

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

    .colorcv-card {
        padding: 22px 16px 20px;
    }

    .colorcv-swatch-row {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .colorcv-swatch {
        height: 96px;
    }

    .colorcv-output-grid {
        grid-template-columns: 1fr;
    }

    .colorcv-output {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "label copy"
            "value value";
        gap: 6px;
        padding: 10px 12px;
    }

    .colorcv-output-label {
        grid-area: label;
    }

    .colorcv-copy {
        grid-area: copy;
    }

    .colorcv-output-value {
        grid-area: value;
    }

    .colorcv-sliders {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .colorcv-num {
        width: 60px;
    }

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

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

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