/* ============ Ark SVG Editor — upload & edit an SVG file ============ */

:root {
    --accent: #4f46e5;
    --accent-soft: #eef2ff;
    --bg: #f4f6fa;
    --chrome: #ffffff;
    --border: #dde3ec;
    --text: #1f2937;
    --muted: #6b7280;
    --danger: #dc2626;
    --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 4px 14px rgba(15, 23, 42, .06);
    --radius: 8px;
    --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
    margin: 0;
    height: 100%;
    font-family: var(--font);
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
    overflow: hidden;
}

#svge-app {
    display: grid;
    grid-template-rows: 48px 1fr 28px;
    height: 100vh;
}

/* ---------- Top bar ---------- */

#svge-topbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 0 10px;
    background: var(--chrome);
    border-bottom: 1px solid var(--border);
    z-index: 20;
    overflow-x: auto;
    scrollbar-width: none;
}
#svge-topbar::-webkit-scrollbar { display: none; }

.se-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 15px;
    color: var(--accent);
    padding-right: 12px;
    white-space: nowrap;
}
.se-brand-mark {
    width: 22px;
    height: 22px;
    stroke: var(--accent);
    stroke-width: 2;
    fill: var(--accent-soft);
}

.se-group { display: flex; align-items: center; gap: 2px; }
.se-sep { width: 1px; height: 24px; background: var(--border); margin: 0 6px; flex: none; }
.se-spacer { flex: 1; }

.se-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 32px;
    height: 32px;
    padding: 0 6px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: transparent;
    color: var(--text);
    font: inherit;
    cursor: pointer;
    white-space: nowrap;
}
.se-btn svg {
    width: 17px;
    height: 17px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex: none;
}
.se-btn:hover { background: var(--accent-soft); color: var(--accent); }
.se-btn:disabled { opacity: .4; cursor: default; }
.se-btn:disabled:hover { background: transparent; color: var(--text); }
.se-btn-label { padding: 0 10px; }
.se-btn.se-danger:hover { background: #fef2f2; color: var(--danger); }
.se-zoom-label { font-size: 12px; font-weight: 600; min-width: 48px; }

.se-designer-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    text-decoration: none;
    white-space: nowrap;
    padding: 6px 8px;
    border-radius: 6px;
}
.se-designer-link:hover { color: var(--accent); background: var(--accent-soft); }

/* ---------- Main split ---------- */

#svge-main {
    display: grid;
    grid-template-columns: 1fr 280px;
    min-height: 0;
}

/* ---------- Stage ---------- */

#svge-stage {
    position: relative;
    overflow: auto;
    padding: 32px;
    background-image: radial-gradient(circle, #d6dde9 1px, transparent 1px);
    background-size: 20px 20px;
    user-select: none;
    -webkit-user-select: none;
}
#svge-stage.se-dragover { outline: 2px dashed var(--accent); outline-offset: -6px; }

#svge-content { position: relative; display: inline-block; }

#svge-canvas svg {
    display: block;
    background: #ffffff;
    border-radius: 4px;
    box-shadow: var(--shadow);
}

body:not(.svge-loaded) #svge-content { display: none; }

/* Selection box overlay (one per selected element) */
.svge-selbox {
    position: absolute;
    pointer-events: none;
    border: 1.5px solid var(--accent);
    border-radius: 2px;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, .8);
    z-index: 5;
}

/* Rubber-band area selection */
#svge-marquee {
    position: absolute;
    pointer-events: none;
    border: 1px dashed var(--accent);
    background: rgba(79, 70, 229, .08);
    z-index: 7;
}

/* Connector endpoint handles */
.svge-handle {
    position: absolute;
    width: 12px;
    height: 12px;
    margin: -6px 0 0 -6px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    background: #ffffff;
    cursor: grab;
    z-index: 6;
}
.svge-handle:active { cursor: grabbing; }
.svge-handle-b { background: var(--accent); }

/* Drop zone / empty state */
#svge-dropzone {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--muted);
    cursor: pointer;
}
body.svge-loaded #svge-dropzone { display: none; }

.se-drop-icon {
    width: 56px;
    height: 56px;
    fill: none;
    stroke: #b6c1d4;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
    margin-bottom: 8px;
}
.se-drop-title { margin: 0; font-size: 17px; font-weight: 600; color: var(--text); }
.se-drop-sub { margin: 0; font-size: 13px; }

.se-primary {
    margin-top: 6px;
    padding: 9px 18px;
    border: none;
    border-radius: var(--radius);
    background: var(--accent);
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow);
}
.se-primary:hover { background: #4338ca; }

/* ---------- Inspector panel ---------- */

#svge-panel {
    background: var(--chrome);
    border-left: 1px solid var(--border);
    overflow-y: auto;
    padding: 14px;
}

#svge-hint {
    margin: 8px 2px;
    font-size: 12.5px;
    line-height: 1.9;
    color: var(--muted);
}
#svge-hint kbd {
    font-family: inherit;
    font-size: 11px;
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    border-radius: 4px;
    padding: 1px 5px;
    background: var(--bg);
}

.se-sec { margin-bottom: 18px; }
.se-sec h3 {
    margin: 0 0 8px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    color: var(--muted);
}

.se-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.se-row > label:first-child {
    width: 52px;
    flex: none;
    font-size: 12.5px;
    color: var(--muted);
}

.se-row input[type="color"] {
    width: 34px;
    height: 26px;
    padding: 1px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
}
.se-row input[type="color"]:disabled { opacity: .35; cursor: default; }

.se-row input[type="number"],
.se-row select,
#svge-text-fields input {
    flex: 1;
    min-width: 0;
    padding: 5px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font: inherit;
    font-size: 13px;
    color: var(--text);
    background: #fff;
}
.se-row input[type="number"]:focus,
.se-row select:focus,
#svge-text-fields input:focus { border-color: var(--accent); outline: none; }

.se-row input[type="range"] { flex: 1; accent-color: var(--accent); }
.se-val { font-size: 12px; color: var(--muted); min-width: 36px; text-align: right; }

.se-check {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12.5px;
    color: var(--muted);
    cursor: pointer;
}
.se-check input { accent-color: var(--accent); }

.se-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.se-elid {
    font-size: 12px;
    color: var(--muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.se-note { margin: 6px 0 0; font-size: 11.5px; line-height: 1.5; color: var(--muted); }

#svge-text-fields input { display: block; width: 100%; margin-bottom: 6px; }

/* Connector format buttons */
.se-fmt { display: flex; gap: 4px; margin-bottom: 10px; }
.se-fmt button {
    flex: 1;
    padding: 6px 0;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
    font: inherit;
    font-size: 12.5px;
    color: var(--text);
    cursor: pointer;
}
.se-fmt button:hover { border-color: var(--accent); color: var(--accent); }
.se-fmt button.active {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 600;
}

.se-actions { flex-wrap: wrap; }
.se-actions .se-btn { border: 1px solid var(--border); flex: 1; }

/* ---------- Status bar ---------- */

#svge-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    font-size: 12px;
    color: var(--muted);
    background: var(--chrome);
    border-top: 1px solid var(--border);
    white-space: nowrap;
    overflow: hidden;
}