.da-wrapper {
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --PB: var(--border-color);
    --PG: var(--card-bg);
    display: flex;
    justify-content: center;
        padding: clamp(0px, 5vw, 0px) 20px;
}

.da-panel {
    position: relative;                
    width: 100%;
    max-width: 1400px;
    border-radius: 28px;
    padding: clamp(28px, 5vw, 56px);
    overflow: hidden;
}



/* ---------- HERO ---------- */
.da-hero { text-align: center; max-width: 800px; margin: 0 auto; padding: clamp(10px, 4vw, 30px) 0; }

.da-hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 12.5px; font-weight: 800; letter-spacing: 0.3px;
    color: var(--primary-color); background: var(--primary-light);
    padding: 7px 16px; border-radius: 100px; margin-bottom: 22px;
}

.da-hero-title {
    font-size: clamp(30px, 4.4vw, 44px);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.025em;
    color: var(--text-main);
    margin-bottom: 16px;
}

.da-hero-title em {
    font-style: normal;
    background: linear-gradient(120deg, #3b82f6, var(--primary-color));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}

.da-hero-desc { font-size: 16.5px; color: var(--text-muted); line-height: 1.7; margin-bottom: 36px; }

/* ---------- NOTEPAD APP ---------- */
.nt-app {
    background: var(--bg-body); border: 1px solid var(--border-color);
    border-radius: 20px; box-shadow: 0 10px 40px rgba(0,0,0,0.05);
    margin-bottom: 30px; display: flex; flex-direction: column; overflow: hidden;
}

/* HEADER */
.nt-header {
    background: var(--card-bg); border-bottom: 1px solid var(--border-color);
    display: flex; flex-direction: column;
}

.nt-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 20px; border-bottom: 1px solid var(--border-color);
    gap: 16px; flex-wrap: wrap;
}
.nt-row:last-child { border-bottom: none; }

.nt-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.nt-select, .nt-input {
    background: var(--bg-body); border: 1px solid var(--border-color);
    color: var(--text-main); padding: 8px 12px; border-radius: 8px;
    font-size: 13px; font-weight: 700; outline: none; transition: 0.2s;
}
.nt-select:focus, .nt-input:focus { border-color: var(--primary-color); }

.nt-btn {
    background: transparent; color: var(--text-muted); border: 1px solid var(--border-color);
    padding: 8px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: 0.2s;
}
.nt-btn:hover { background: var(--primary-light); color: var(--primary-color); border-color: var(--primary-color); }
.nt-btn.active { background: var(--primary-color); color: #fff; border-color: var(--primary-color); }

.nt-search {
    display: flex; align-items: center; background: var(--bg-body);
    border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden;
}
.nt-search-ico { padding: 0 10px; color: var(--text-muted); display: flex; align-items: center; }
.nt-search input {
    border: none; background: transparent; padding: 8px 10px 8px 0; color: var(--text-main);
    font-size: 13px; outline: none; width: 150px;
}

.nt-dropzone {
    display: flex; align-items: center; gap: 8px; padding: 8px 16px;
    background: rgba(var(--primary-color-rgb), 0.05); border: 1px dashed var(--primary-color);
    border-radius: 8px; color: var(--primary-color); font-size: 12px; font-weight: 800;
    cursor: pointer; transition: 0.2s; flex-grow: 1; justify-content: center;
}
.nt-dropzone:hover, .nt-dropzone.dragover { background: rgba(var(--primary-color-rgb), 0.1); }

/* WORKSPACE */
.nt-workspace {
    display: grid; gap: 16px; padding: 20px; background: var(--bg-body);
    min-height: 500px; transition: 0.3s;
}

.nt-file {
    background: var(--card-bg); border: 1px solid var(--border-color);
    border-radius: 12px; display: flex; flex-direction: column; overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
}
.nt-file:focus-within { border-color: var(--primary-color); box-shadow: 0 4px 12px rgba(var(--primary-color-rgb), 0.1); }
.nt-file.dragging { opacity: 0.5; transform: scale(0.98); }

.ntf-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px; background: var(--bg-body); border-bottom: 1px solid var(--border-color);
}
.ntf-title { display: flex; align-items: center; gap: 8px; flex-grow: 1; overflow: hidden; }
.ntf-drag { cursor: grab; color: var(--text-muted); display: flex; align-items: center; padding: 4px; border-radius: 4px; }
.ntf-drag:active { cursor: grabbing; }
.ntf-drag:hover { background: var(--border-color); color: var(--text-main); }

.ntf-name { font-size: 13px; font-weight: 800; color: var(--text-main); cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; padding: 2px 6px; border-radius: 4px; border: 1px solid transparent; }
.ntf-name:hover { background: var(--border-color); }
.ntf-name-input { font-size: 13px; font-weight: 800; color: var(--text-main); background: var(--card-bg); border: 1px solid var(--primary-color); padding: 2px 6px; border-radius: 4px; outline: none; width: 100px; }

.ntf-actions { display: flex; align-items: center; gap: 4px; }
.ntf-btn {
    background: transparent; border: none; color: var(--text-muted); padding: 4px;
    border-radius: 4px; cursor: pointer; display: flex; align-items: center; transition: 0.2s;
}
.ntf-btn:hover { background: var(--border-color); color: var(--text-main); }
.ntf-btn.active { color: var(--primary-color); }
.ntf-btn.danger:hover { background: #fee2e2; color: #ef4444; }

.ntf-local-search {
    display: flex; align-items: center; gap: 8px; padding: 8px 12px;
    background: rgba(var(--primary-color-rgb), 0.05); border-bottom: 1px solid var(--border-color);
}
.ntf-local-search input {
    flex-grow: 1; background: transparent; border: none; outline: none;
    color: var(--text-main); font-size: 12px; font-weight: 700;
}

.ntf-content {
    flex-grow: 1; padding: 16px; color: var(--text-main); font-size: 14px;
    line-height: 1.6; outline: none; overflow-y: auto; white-space: pre-wrap;
    word-wrap: break-word; min-height: 200px;
}
.ntf-content mark { background: rgba(var(--primary-color-rgb), 0.3); color: inherit; padding: 0 2px; border-radius: 2px; }

/* ---------- CUSTOM DROPDOWN ---------- */
.custom-dropdown { position: relative; display: inline-block; user-select: none; }
.cd-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; background: transparent; border: 1px solid var(--border-color); padding: 8px 12px; border-radius: 8px; font-size: 13px; font-weight: 800; color: var(--text-muted); cursor: pointer; transition: all 0.2s; min-width: 140px; }
.cd-header:hover, .custom-dropdown.active .cd-header { border-color: var(--primary-color); color: var(--primary-color); background: var(--primary-light); }
.cd-value { display: flex; align-items: center; gap: 8px; }
.cd-body { position: absolute; top: calc(100% + 8px); right: 0; width: 220px; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); padding: 8px; z-index: 100; opacity: 0; visibility: hidden; transform: translateY(-10px); transition: all 0.2s; display: flex; flex-direction: column; gap: 8px; }
.custom-dropdown.active .cd-body { opacity: 1; visibility: visible; transform: translateY(0); }
.cd-search input { width: 100%; background: var(--bg-body); border: 1px solid var(--border-color); border-radius: 8px; padding: 8px 12px; font-size: 12px; color: var(--text-main); outline: none; }
.cd-list { max-height: 200px; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; }
.cd-list::-webkit-scrollbar { width: 4px; }
.cd-list::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
.cd-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-radius: 8px; font-size: 12px; font-weight: 700; color: var(--text-main); cursor: pointer; transition: background 0.2s; }
.cd-item:hover { background: var(--bg-body); }
.cd-item.active { background: rgba(var(--primary-color-rgb), 0.05); color: var(--primary-color); }

/* ── Comparison Panel & Analytics ── */
.comparison-panel {
    background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 24px;
    padding: 28px; margin-top: 32px; box-shadow: 0 10px 30px rgba(0,0,0,0.02); margin-bottom: 40px;
}
.cp-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
.cp-title { font-size: 16px; font-weight: 800; color: var(--text-main); display: flex; align-items: center; gap: 10px; }
.cp-badge { font-size: 12px; font-weight: 800; padding: 6px 14px; border-radius: 100px; }
.badge-high { background: color-mix(in srgb, var(--success, #10b981) 15%, transparent); color: var(--success, #10b981); border: 1px solid color-mix(in srgb, var(--success, #10b981) 30%, transparent); }

.cp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.cp-card { background: var(--bg-body); border: 1px solid var(--border-color); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.cpc-header { display: flex; justify-content: space-between; align-items: center; }
.cpc-title { font-size: 13.5px; font-weight: 800; color: var(--text-main); }
.cpc-tag { font-size: 11.5px; font-weight: 800; padding: 4px 10px; border-radius: 6px; }
.cpc-tag.success { background: color-mix(in srgb, var(--success, #10b981) 15%, transparent); color: var(--success, #10b981); }

.cpc-body { display: flex; flex-direction: column; gap: 10px; }
.cpc-stat-row { font-size: 13px; color: var(--text-muted); display: flex; justify-content: space-between; }
.cpc-stat-row strong { color: var(--text-main); font-weight: 700; }
.cpc-progress-bar { width: 100%; height: 8px; background: var(--border-color); border-radius: 100px; overflow: hidden; margin-top: 4px; }
.cpc-progress-fill { height: 100%; background: var(--primary-color); border-radius: 100px; transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.cpc-progress-fill.bg-gradient { background: linear-gradient(90deg, var(--primary-color), var(--primary-gradient-end)); }