/* ============================================
   Signature Generator Pro — Stylesheet
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&display=swap');

/* ---- Root variables ---- */
.sig-gen-wrap {
    --sg-bg:         #fdfcfa;
    --sg-surface:    #ffffff;
    --sg-border:     #e8e3db;
    --sg-accent:     #2c1810;
    --sg-accent2:    #c8960c;
    --sg-text:       #1a1410;
    --sg-muted:      #8a7f74;
    --sg-radius:     12px;
    --sg-shadow:     0 4px 24px rgba(44,24,16,.08);

    font-family: 'DM Sans', sans-serif;
    color: var(--sg-text);
    background: var(--sg-bg);
    border: 1px solid var(--sg-border);
    border-radius: 20px;
    box-shadow: var(--sg-shadow);
    max-width: 1100px;
    margin: 32px auto;
    overflow: hidden;
}

/* ---- Header ---- */
.sig-gen-header {
    background: linear-gradient(135deg, #2c1810 0%, #4a2c1a 50%, #6b3a20 100%);
    padding: 36px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.sig-gen-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.sig-gen-header-icon {
    font-size: 28px;
    color: var(--sg-accent2);
    margin-bottom: 8px;
    position: relative;
}
.sig-gen-title {
    font-size: 26px;
    font-weight: 600;
    color: #fff;
    margin: 0 0 6px;
    letter-spacing: -.3px;
    position: relative;
}
.sig-gen-subtitle {
    font-size: 13px;
    color: rgba(255,255,255,.55);
    margin: 0;
    position: relative;
    letter-spacing: .3px;
}

/* ---- Body layout ---- */
.sig-gen-body {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 0;
    min-height: 520px;
}

/* ---- Controls panel ---- */
.sig-gen-controls {
    background: var(--sg-surface);
    border-right: 1px solid var(--sg-border);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sig-gen-field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sig-gen-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.sig-gen-label {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .6px;
    text-transform: uppercase;
    color: var(--sg-muted);
}

.sig-gen-input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--sg-border);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    color: var(--sg-text);
    background: var(--sg-bg);
    transition: border-color .2s;
    box-sizing: border-box;
}
.sig-gen-input:focus {
    outline: none;
    border-color: var(--sg-accent);
}

/* ---- Style grid ---- */
.sig-gen-styles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.sig-style-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    border: 1.5px solid var(--sg-border);
    border-radius: 8px;
    background: var(--sg-bg);
    cursor: pointer;
    font-size: 11px;
    color: var(--sg-muted);
    transition: all .2s;
    font-family: inherit;
}
.sig-style-btn:hover { border-color: var(--sg-accent); color: var(--sg-text); }
.sig-style-btn.active {
    border-color: var(--sg-accent);
    background: #2c18100d;
    color: var(--sg-text);
}
.sig-style-preview {
    font-size: 22px;
    line-height: 1;
    color: var(--sg-accent);
}

/* ---- Color swatches ---- */
.sig-gen-colors {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.sig-color-swatch {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2.5px solid transparent;
    cursor: pointer;
    transition: transform .15s, border-color .15s;
    position: relative;
}
.sig-color-swatch:hover { transform: scale(1.15); }
.sig-color-swatch.active { border-color: var(--sg-accent2); }
.sig-color-custom {
    background: conic-gradient(red, yellow, lime, cyan, blue, magenta, red) !important;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.sig-color-custom input[type="color"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}
.sig-color-custom span { font-size: 16px; color: #fff; text-shadow: 0 1px 3px rgba(0,0,0,.5); pointer-events: none; }

/* ---- Range sliders ---- */
.sig-gen-range {
    width: 100%;
    -webkit-appearance: none;
    height: 4px;
    border-radius: 4px;
    background: var(--sg-border);
    outline: none;
    cursor: pointer;
}
.sig-gen-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--sg-accent);
    border: 3px solid #fff;
    box-shadow: 0 1px 6px rgba(0,0,0,.25);
    cursor: pointer;
}

/* ---- Toggle switch ---- */
.sig-gen-toggle { position: relative; display: inline-block; width: 44px; height: 24px; }
.sig-gen-toggle input { opacity: 0; width: 0; height: 0; }
.sig-gen-toggle-track {
    position: absolute;
    inset: 0;
    background: var(--sg-border);
    border-radius: 24px;
    transition: background .2s;
    cursor: pointer;
}
.sig-gen-toggle-track::before {
    content: '';
    position: absolute;
    left: 3px; top: 3px;
    width: 18px; height: 18px;
    background: #fff;
    border-radius: 50%;
    transition: transform .2s;
    box-shadow: 0 1px 4px rgba(0,0,0,.2);
}
.sig-gen-toggle input:checked + .sig-gen-toggle-track { background: var(--sg-accent); }
.sig-gen-toggle input:checked + .sig-gen-toggle-track::before { transform: translateX(20px); }

/* ---- Buttons ---- */
.sig-gen-actions { display: flex; gap: 8px; }
.sig-btn {
    flex: 1;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all .2s;
    border: none;
    letter-spacing: .2px;
}
.sig-btn-primary { background: var(--sg-accent); color: #fff; }
.sig-btn-primary:hover { background: #4a2c1a; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(44,24,16,.3); }
.sig-btn-secondary { background: var(--sg-bg); color: var(--sg-text); border: 1.5px solid var(--sg-border); }
.sig-btn-secondary:hover { border-color: var(--sg-accent); }
.sig-btn-outline { background: transparent; color: var(--sg-accent); border: 1.5px solid var(--sg-accent); }
.sig-btn-outline:hover { background: #2c18100d; }
.sig-btn-small { padding: 6px 12px; flex: none; }

/* ---- Preview panel ---- */
.sig-gen-preview-panel {
    background: var(--sg-bg);
    padding: 28px 28px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sig-gen-canvas-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .8px;
    text-transform: uppercase;
    color: var(--sg-muted);
    margin-bottom: 10px;
}
.sig-gen-canvas-hint {
    font-size: 11px;
    color: var(--sg-muted);
    margin-top: 8px;
    text-align: center;
}

/* Checkerboard = transparent background visual */
.sig-gen-checkerboard {
    background-color: #fff;
    background-image:
        linear-gradient(45deg, #e8e3db 25%, transparent 25%),
        linear-gradient(-45deg, #e8e3db 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e8e3db 75%),
        linear-gradient(-45deg, transparent 75%, #e8e3db 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
    border-radius: 10px;
    border: 1px solid var(--sg-border);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

#sig-canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

/* ---- Draw panel ---- */
.sig-gen-draw-toggle-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.sig-draw-board {
    cursor: crosshair;
}
#sig-draw-canvas {
    display: block;
    max-width: 100%;
    touch-action: none;
}

/* ---- Toast ---- */
.sig-gen-toast {
    position: fixed;
    bottom: 28px;
    right: 28px;
    background: var(--sg-accent);
    color: #fff;
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 20px rgba(0,0,0,.2);
    opacity: 0;
    transform: translateY(10px);
    transition: all .3s;
    pointer-events: none;
    z-index: 99999;
}
.sig-gen-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Admin page ---- */
.sig-gen-admin-demo { margin-top: 24px; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .sig-gen-body {
        grid-template-columns: 1fr;
    }
    .sig-gen-controls {
        border-right: none;
        border-bottom: 1px solid var(--sg-border);
    }
    .sig-gen-header { padding: 24px 20px; }
    .sig-gen-controls, .sig-gen-preview-panel { padding: 20px 16px; }
}