@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;700&display=swap');

:root {
    --bg: #f7f5f0;
    --panel: #ffffff;
    --panel-muted: #ece6dc;
    --text: #171717;
    --muted: #5e5b57;
    --accent: #e63946;
    --border: #171717;
    --shadow: 8px 8px 0 0 var(--border);
    --max-width: 1180px;
    --picked: #e63946;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Inter', Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at 80% 10%, color-mix(in srgb, var(--picked) 25%, transparent), transparent 24rem),
        linear-gradient(135deg, rgba(230, 57, 70, 0.08), transparent 35%),
        var(--bg);
    color: var(--text);
    transition: background 0.45s ease;
}

h1,
h2,
h3 {
    margin: 0;
    font-family: 'Space Grotesk', Arial, Helvetica, sans-serif;
    letter-spacing: -0.04em;
    text-transform: uppercase;
}

p {
    margin: 0;
    line-height: 1.6;
}

a {
    color: inherit;
}

.page-shell {
    width: min(calc(100% - 32px), var(--max-width));
    margin: 0 auto;
    padding: 48px 0 80px;
}

.hero {
    margin-bottom: 32px;
}

.back-link {
    display: inline-block;
    margin-bottom: 22px;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
}

.eyebrow {
    margin-bottom: 12px;
    color: var(--accent);
    font-size: 0.86rem;
    font-weight: 800;
    letter-spacing: 0.18em;
}

.hero h1 {
    margin-bottom: 18px;
    font-size: clamp(3rem, 7vw, 5.5rem);
    line-height: 0.92;
}

.hero-copy {
    max-width: 780px;
    color: var(--muted);
    font-size: 1.1rem;
}

.picker-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 24px;
}

.panel {
    position: relative;
    overflow: hidden;
    padding: 28px;
    background: var(--panel);
    border: 3px solid var(--border);
    box-shadow: var(--shadow);
}

.panel-header {
    position: relative;
    z-index: 1;
    margin-bottom: 24px;
}

.panel-header h2 {
    margin-bottom: 8px;
    font-size: 1.45rem;
}

.panel-header p {
    color: var(--muted);
}

.native-picker-wrap {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 120px 1fr;
    align-items: center;
    gap: 18px;
    margin-bottom: 28px;
}

input[type="color"] {
    width: 120px;
    height: 120px;
    padding: 0;
    cursor: pointer;
    border: 3px solid var(--border);
    background: transparent;
    box-shadow: 6px 6px 0 0 var(--border);
}

.native-picker-wrap label {
    font-family: 'Space Grotesk', Arial, Helvetica, sans-serif;
    font-size: 1.65rem;
    font-weight: 800;
    text-transform: uppercase;
}

.slider-stack {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 14px;
}

.slider-stack label {
    display: flex;
    justify-content: space-between;
    font-weight: 800;
    text-transform: uppercase;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--picked);
}

.preview-card {
    display: grid;
    min-height: 290px;
    align-content: end;
    gap: 12px;
    padding: 28px;
    border: 3px solid var(--border);
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent),
        var(--picked);
    color: #ffffff;
    box-shadow: inset 0 0 0 12px rgba(255, 255, 255, 0.16);
    transition: background 0.35s ease, color 0.35s ease;
}

.preview-card span {
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.preview-card strong {
    font-family: 'Space Grotesk', Arial, Helvetica, sans-serif;
    font-size: clamp(2.2rem, 5vw, 4rem);
    line-height: 0.9;
    text-transform: uppercase;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 18px 0;
}

.value-card,
button,
.button-link {
    cursor: pointer;
    padding: 0.9rem 1.2rem;
    border: 2px solid var(--border);
    border-radius: 0;
    font: inherit;
    font-weight: 800;
    text-decoration: none;
    text-transform: uppercase;
    transition: transform 0.2s ease, background 0.2s ease;
}

.value-card {
    min-height: 104px;
    background: var(--panel-muted);
    color: var(--text);
    text-align: left;
}

.value-card span,
.value-card strong {
    display: block;
}

.value-card span {
    margin-bottom: 0.5rem;
    color: var(--muted);
    font-size: 0.8rem;
}

.value-card strong {
    overflow-wrap: anywhere;
    font-size: 0.92rem;
    text-transform: none;
}

.value-card:hover,
button:hover,
.button-link:hover {
    transform: translate(-2px, -2px);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.primary-btn {
    display: inline-block;
    background: var(--picked);
    color: #ffffff;
}

.secondary-btn {
    background: var(--panel);
    color: var(--text);
}

.palette-panel,
.faq-panel {
    margin-top: 24px;
}

.palette-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.palette-button {
    display: grid;
    min-height: 150px;
    align-content: end;
    gap: 8px;
    padding: 16px;
    border: 2px solid var(--border);
    color: #ffffff;
    text-align: left;
}

.palette-button span {
    display: block;
}

.palette-name {
    font-family: 'Space Grotesk', Arial, Helvetica, sans-serif;
    font-size: 1.05rem;
}

.faq-item {
    padding: 18px 0;
    border-top: 2px solid var(--border);
}

.faq-item h3 {
    margin-bottom: 8px;
    font-size: 1rem;
}

.faq-item p {
    color: var(--muted);
}

@media (max-width: 920px) {
    .picker-grid,
    .value-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .page-shell {
        width: min(calc(100% - 20px), var(--max-width));
        padding-top: 24px;
    }

    .panel {
        padding: 20px;
    }

    .native-picker-wrap {
        grid-template-columns: 1fr;
    }

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