:root {
    --bg: #eef2f7;
    --card: #ffffff;
    --text: #172033;
    --muted: #64748b;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-soft: #e8f0ff;
    --border: #dbe2ea;
    --danger: #dc2626;
    --warning: #f59e0b;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
    font-family: Tahoma, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
}
button, input, select, textarea { font: inherit; }
button { touch-action: manipulation; }
[hidden] { display: none !important; }

.editor-page { overflow: hidden; }
.editor-layout {
    height: calc(100vh - 68px);
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr) 300px;
    direction: ltr;
}
.editor-layout > * { direction: rtl; }

.canvas-stage {
    position: relative;
    overflow: auto;
    padding: 34px 44px 110px;
    background: #dce3eb;
    scroll-behavior: smooth;
}
.pages-container {
    display: flex;
    flex-direction: column;
    gap: 38px;
    align-items: center;
    min-width: max-content;
}
.pdf-page-wrap {
    position: relative;
    flex: none;
    background: #fff;
    box-shadow: 0 12px 34px rgba(15, 23, 42, .18);
    transform-origin: center center;
    transition: box-shadow .2s ease, opacity .2s ease;
    user-select: none;
}
.pdf-page-wrap.active-page {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .55), 0 14px 38px rgba(15, 23, 42, .22);
}
.pdf-page-wrap.is-deleted {
    opacity: .28;
    filter: grayscale(1);
}
.pdf-page-wrap.is-deleted::after {
    content: 'سيتم حذف هذه الصفحة';
    position: absolute;
    inset: 0;
    z-index: 60;
    display: grid;
    place-items: center;
    color: #991b1b;
    background: rgba(254, 226, 226, .64);
    font-weight: 800;
    pointer-events: none;
}

.pdf-page-wrap canvas.pdf-layer {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 1;
    background: #fff;
    transform-origin: center center;
}

.pdf-text-layer,
.pdf-annotation-layer {
    position: absolute;
    inset: 0;
    overflow: hidden;
    transform-origin: center center;
    pointer-events: none;
}
.pdf-text-layer { z-index: 18; }
.pdf-annotation-layer { z-index: 19; }

.pdf-text-hit {
    position: absolute;
    color: transparent;
    background: transparent;
    border: 1px dashed transparent;
    overflow: hidden;
    white-space: pre;
    pointer-events: none;
    transform-origin: 0 0;
    cursor: text;
}
#editorApp[data-active-tool="text"] .pdf-text-hit {
    pointer-events: auto;
}
#editorApp[data-active-tool="text"] .pdf-text-hit:hover {
    border-color: #0282e5;
    background: rgba(2,130,229,.07);
}

.pdf-annotation-hit {
    position: absolute;
    border: 1px dashed transparent;
    background: transparent;
    pointer-events: none;
}
#editorApp[data-active-tool="link"] .pdf-annotation-hit {
    pointer-events: auto;
    border-color: rgba(2,130,229,.65);
    background: rgba(2,130,229,.08);
}
#editorApp[data-active-tool^="form-"] .pdf-annotation-hit[data-subtype="Widget"] {
    pointer-events: auto;
    border-color: rgba(124,58,237,.65);
    background: rgba(124,58,237,.08);
}

.pdf-page-wrap .fabric-wrapper,
.pdf-page-wrap .canvas-container {
    position: absolute !important;
    inset: 0 !important;
    z-index: 10 !important;
    margin: 0 !important;
    transform-origin: center center;
}
.pdf-page-wrap .lower-canvas,
.pdf-page-wrap .upper-canvas {
    position: absolute !important;
    inset: 0 !important;
}
.pdf-page-wrap .lower-canvas { z-index: 11 !important; }
.pdf-page-wrap .upper-canvas {
    z-index: 12 !important;
    pointer-events: auto !important;
    touch-action: none;
}

.tool-hint {
    position: fixed;
    top: 78px;
    left: 50%;
    z-index: 120;
    transform: translateX(-50%);
    max-width: min(90vw, 620px);
    padding: 9px 14px;
    border-radius: 10px;
    color: #fff;
    background: rgba(15,23,42,.94);
    box-shadow: 0 8px 24px rgba(15,23,42,.18);
    font-size: 13px;
    pointer-events: none;
}

.loading-state {
    position: absolute;
    inset: 0;
    z-index: 80;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 24px;
    text-align: center;
    background: rgba(238, 242, 247, .96);
}
.loading-state strong { font-size: 20px; }
.loading-state span { color: var(--muted); }
.loader {
    width: 38px;
    height: 38px;
    border: 4px solid #cbd5e1;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.zoom-bar {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 70;
    display: flex;
    gap: 12px;
    align-items: center;
    direction: ltr;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: #fff;
    box-shadow: 0 8px 30px rgba(0, 0, 0, .12);
}
.zoom-bar button {
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 50%;
    background: #eef2f7;
    cursor: pointer;
}

.toast {
    position: fixed;
    bottom: 82px;
    left: 50%;
    z-index: 200;
    transform: translateX(-50%);
    max-width: min(90vw, 520px);
    padding: 12px 18px;
    border-radius: 12px;
    color: #fff;
    background: #111827;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .22);
}
.toast[data-type="error"] { background: #b91c1c; }
.toast[data-type="warning"] { background: #b45309; }
.danger { background: var(--danger) !important; color: #fff !important; }

.editor-modal {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(15,23,42,.56);
    backdrop-filter: blur(3px);
}
.editor-modal-card {
    width: min(760px, 96vw);
    max-height: 92vh;
    overflow: auto;
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 28px 80px rgba(15,23,42,.28);
}
.editor-modal-header,
.editor-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
}
.editor-modal-footer {
    justify-content: flex-end;
    border-top: 1px solid var(--border);
    border-bottom: 0;
}
.editor-modal-header h2 { margin: 0; font-size: 20px; }
.modal-close {
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 50%;
    background: #f1f5f9;
    font-size: 24px;
    cursor: pointer;
}
.signature-tabs {
    display: flex;
    gap: 8px;
    padding: 16px 22px 0;
}
.signature-tabs button {
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
    padding: 9px 14px;
    cursor: pointer;
}
.signature-tabs button.active {
    color: var(--primary-dark);
    border-color: #93b4ff;
    background: var(--primary-soft);
}
.signature-pane { padding: 22px; }
.signature-pane label { display: block; font-weight: 700; }
.signature-pane input {
    width: 100%;
    margin-top: 8px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
}
.signature-typed-preview {
    display: grid;
    place-items: center;
    min-height: 120px;
    margin-top: 18px;
    padding: 16px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    font-family: Amiri, Tajawal, serif;
    font-size: 48px;
}
.signature-pad-wrap {
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
}
#signaturePad {
    display: block;
    width: 100%;
    height: 220px;
    touch-action: none;
}
.secondary-btn,
.primary-btn {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 14px;
    background: #fff;
    cursor: pointer;
}
.primary-btn {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
    font-weight: 800;
}
.signature-upload-preview {
    display: block;
    max-width: 100%;
    max-height: 220px;
    margin: 18px auto 0;
    object-fit: contain;
}

.landing-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.landing-shell { width: min(900px, 100%); }
.hero-card { background: #fff; border: 1px solid var(--border); border-radius: 28px; padding: 48px; box-shadow: 0 20px 60px rgba(15,23,42,.08); text-align: center; }
.brand { font-weight: 900; color: var(--primary); letter-spacing: .5px; text-decoration: none; }
.badge { display: inline-block; background: #e8f0ff; color: #1d4ed8; padding: 7px 12px; border-radius: 999px; margin: 14px; }
.hero-card h1 { font-size: clamp(30px,5vw,54px); margin: 10px 0; }
.hero-card p { color: var(--muted); font-size: 18px; }
.upload-box { border: 2px dashed #9fb4d8; border-radius: 22px; padding: 26px; margin: 30px 0; background: #f8fbff; }
.upload-box input { display: none; }
.upload-box label { display: block; padding: 25px; cursor: pointer; }
.upload-box button, .button-link { background: var(--primary); color: #fff; border: 0; padding: 14px 22px; border-radius: 14px; text-decoration: none; display: inline-block; font-weight: 700; }
.plan-note { color: var(--muted); }

/* V9 loader/render reliability */
.editor-layout {
    visibility: visible !important;
    opacity: 1 !important;
    min-height: calc(100vh - 68px);
}
.canvas-stage,
.page-sidebar,
.properties-panel {
    visibility: visible !important;
}
.canvas-stage { min-width: 0; }
.page-render-error {
    width: min(680px, 92vw);
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 24px;
    border: 1px solid #fecaca;
    border-radius: 14px;
    background: #fff;
    color: #991b1b;
    box-shadow: 0 12px 34px rgba(15,23,42,.12);
    text-align: center;
}
.page-render-error span { color: #7f1d1d; }
.editor-fatal-icon {
    width: 50px;
    height: 50px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: #dc2626;
    font-size: 28px;
    font-weight: 900;
}
.editor-retry-btn {
    margin-top: 8px;
    border: 0;
    border-radius: 10px;
    padding: 10px 16px;
    color: #fff;
    background: #2563eb;
    cursor: pointer;
    font-weight: 700;
}