/* ── Design tokens (mirrors signstyles.css) ── */
:root {
    --silver-mist: #F2F4F7;
    --slate-wash: #E8EDF3;
    --carolina: #4B9CD3;
    --carolina-dark: #1A6FAB;
    --navy: #13294B;
    --navy-deep: #0C1E36;
    --mist-light: #D0DCE8;
    --longleaf: #00594C;
    --longleaf-dark: #004038;
    --text-main: #0F1E2E;
    --text-muted: #5A6A7A;
    --white: #ffffff;
    --chalk: #FDFEFF;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Lora', Georgia, serif;
    --radius-md: 10px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(12,30,54,0.12);
    --t-fast: 160ms;
    --ease-out: cubic-bezier(0.22,1,0.36,1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--text-main);
    background-color: var(--silver-mist);
    background-image: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(75,156,211,0.03) 3px, rgba(75,156,211,0.03) 4px);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    padding: 40px 20px;
}

/* ── Embedded fonts (relative paths — works when served from same dir as /fonts/) ── */
/* NOTE: In the standalone demo these font names fall back to system fonts.
   When deployed next to /fonts/ folder they resolve correctly. */
@font-face {
    font-family: 'Stencil-Regular';
    src: url('../../fonts/StardosStencil-Regular.ttf') format('truetype');
}

@font-face {
    font-family: 'Stencil-Bold';
    src: url('../../fonts/StardosStencil-Bold.ttf') format('truetype');
}

@font-face {
    font-family: 'Thin-Regular';
    src: url('../../fonts/postnobillscolombo-regular.ttf') format('truetype');
}

@font-face {
    font-family: 'Thin-Bold';
    src: url('../../fonts/postnobillscolombo-bold.ttf') format('truetype');
}

@font-face {
    font-family: 'Thin-Extra';
    src: url('../../fonts/postnobillscolombo-extrabold.ttf') format('truetype');
}

@font-face {
    font-family: 'Huge';
    src: url('../../fonts/lintsec.ttf') format('truetype');
}

@font-face {
    font-family: 'Chunk';
    src: url('../../fonts/gomarice_shibuya_zero.ttf') format('truetype');
}

@font-face {
    font-family: 'South';
    src: url('../../fonts/Beon-Regular.ttf') format('truetype');
}

.page-wrap {
    max-width: 780px;
    margin: 0 auto;
}

/* ── Cards ── */
.card {
    background: var(--white);
    border: 1px solid var(--mist-light);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

    .card h2 {
        font-family: var(--font-display);
        font-size: 0.85rem;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--carolina);
        margin-bottom: 20px;
        padding-bottom: 10px;
        border-bottom: 1px solid var(--mist-light);
    }

/* ── Page header ── */
.page-header {
    text-align: center;
    margin-bottom: 32px;
}

    .page-header h1 {
        font-family: var(--font-display);
        font-size: clamp(1.6rem, 4vw, 2.4rem);
        font-weight: 700;
        color: var(--navy-deep);
        letter-spacing: 0.04em;
        margin-bottom: 6px;
    }

    .page-header p {
        font-size: 0.95rem;
        color: var(--text-muted);
    }

/* ── Form grid ── */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

    .field.full {
        grid-column: 1 / -1;
    }

textarea#sb-text {
    resize: vertical;
    min-height: 2.6em;
    line-height: 1.4;
    font-family: var(--font-body);
}

label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

input[type="text"], input[type="number"], input[type="range"], select, textarea {
    padding: 10px 14px;
    font-size: 0.95rem;
    font-family: var(--font-body);
    border: 1px solid var(--mist-light);
    border-radius: var(--radius-md);
    background: var(--silver-mist);
    color: var(--text-main);
    outline: none;
    transition: border-color var(--t-fast) var(--ease-out), box-shadow var(--t-fast) var(--ease-out);
}

    input[type="text"]:focus, input[type="number"]:focus, select:focus, textarea:focus {
        border-color: var(--carolina);
        box-shadow: 0 0 0 3px rgba(75,156,211,0.18);
    }

/* ── Range slider ── */
.range-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.range-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

input[type="range"] {
    flex: 1;
    padding: 0;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 4px;
    background: var(--mist-light);
    border: none;
    cursor: pointer;
}

    input[type="range"]::-webkit-slider-thumb {
        -webkit-appearance: none;
        width: 18px;
        height: 18px;
        background: var(--carolina);
        border-radius: 50%;
        cursor: pointer;
        box-shadow: var(--shadow-sm);
    }

    input[type="range"]:focus {
        border-color: transparent;
        box-shadow: none;
        outline: 2px solid var(--carolina);
        outline-offset: 3px;
        border-radius: 4px;
    }

.range-val {
    min-width: 38px;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--navy);
    text-align: right;
}

/* ── Curve type pills ── */
.curve-pills {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.curve-pill {
    flex: 1;
    min-width: 80px;
    padding: 10px 8px;
    border: 1.5px solid var(--mist-light);
    border-radius: var(--radius-md);
    background: var(--silver-mist);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    transition: background var(--t-fast) var(--ease-out), border-color var(--t-fast) var(--ease-out);
    font-family: var(--font-body);
    font-size: 0.76rem;
    color: var(--text-muted);
    font-weight: 700;
    letter-spacing: 0.04em;
}

    .curve-pill svg {
        display: block;
    }

    .curve-pill.active {
        border-color: var(--carolina);
        background: rgba(75,156,211,0.09);
        color: var(--navy);
    }

    .curve-pill:hover:not(.active) {
        border-color: var(--carolina-dark);
    }

/* ── Preview ── */
.preview-area {
    background: var(--white);
    border: 1px solid var(--mist-light);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    overflow: hidden;
}

#preview-svg {
    max-width: 100%;
    height: auto;
    display: block;
}

.preview-hint {
    font-size: 0.78rem;
    color: var(--carolina);
    margin-top: 10px;
    text-align: center;
    font-style: italic;
}

/* ── Info tiles ── */
.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.info-tile {
    background: var(--slate-wash);
    border-radius: var(--radius-md);
    padding: 14px 16px;
}

.tile-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--carolina);
    font-weight: 700;
    margin-bottom: 4px;
}

.tile-value {
    font-size: 0.9rem;
    color: var(--text-main);
    font-weight: 700;
}

/* ── Actions ── */
.actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0.75rem 1.75rem;
    font-size: 1rem;
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 0.03em;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out), transform var(--t-fast) var(--ease-out), box-shadow var(--t-fast) var(--ease-out);
    text-decoration: none;
    border: none;
}

    .btn:active {
        transform: translateY(1px);
    }

.btn-secondary {
    background-color: transparent;
    color: var(--navy);
    border: 2px solid var(--carolina);
}

    .btn-secondary:hover {
        background-color: var(--carolina);
        color: var(--white);
        border-color: var(--carolina);
    }

footer {
    text-align: center;
    font-size: 0.78rem;
    color: var(--carolina);
    margin-top: 20px;
    font-style: italic;
}

@media (max-width: 520px) {
    .form-grid {
        grid-template-columns: 1fr;
    }

    .field.full {
        grid-column: 1;
    }

    .info-grid {
        grid-template-columns: 1fr 1fr;
    }

    .card {
        padding: 20px 18px;
    }

    .curve-pills {
        gap: 6px;
    }

    .curve-pill {
        min-width: 68px;
        font-size: 0.7rem;
    }
}