:root {
    --color-primary: #e855de;
    --gradient-primary: linear-gradient(90deg, #e855de 0.01%, #5400ee 100%);
    --color-bg: #0d0518;
    --color-bg-alt: #130a26;
    --color-card: #170c2c;
    --color-text: #ffffff;
    --color-text-muted: #b3a9c9;
    --color-border: rgba(255, 255, 255, 0.09);
    --radius: 14px;
    --font: 'Space Grotesk', 'Segoe UI', sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

.container { max-width: 900px; margin: 0 auto; padding: 0 1.5rem; }

.demo-header {
    border-bottom: 1px solid var(--color-border);
    padding: 1.2rem 0;
    background: rgba(13, 5, 24, 0.85);
}
.demo-header .container { display: flex; align-items: center; justify-content: space-between; }
.demo-logo { font-weight: 700; font-size: 1.1rem; }
.demo-logo span { color: var(--color-primary); }
.demo-nav a { color: var(--color-text-muted); font-size: 0.9rem; margin-left: 1.5rem; }
.demo-nav a:hover { color: #fff; }

.demo-hero { padding: 3.5rem 0 2.5rem; text-align: center; }
.demo-hero h1 { font-size: 2.2rem; font-weight: 700; margin-bottom: 0.6rem; }
.demo-hero p { color: var(--color-text-muted); max-width: 480px; margin: 0 auto; }

.demo-section { padding: 2rem 0 4rem; }

.demo-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
}

.shorten-form { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.shorten-form input[type="url"], .shorten-form input[type="text"] {
    flex: 1;
    min-width: 200px;
    padding: 0.85rem 1.1rem;
    border-radius: 10px;
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text);
    font-family: inherit;
    font-size: 0.95rem;
}
.shorten-form input::placeholder { color: #6e6486; }
.shorten-form input:focus { outline: none; border-color: var(--color-primary); }

.btn {
    display: inline-block;
    padding: 0.85rem 1.6rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 0.95rem;
    font-family: inherit;
}
.btn-primary { background: var(--gradient-primary); color: #fff; }
.btn-primary:hover { opacity: 0.9; }
.btn-outline { border-color: rgba(255, 255, 255, 0.25); color: #fff; background: transparent; }
.btn-outline:hover { border-color: #fff; }
.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.85rem; }

.result-box {
    margin-top: 1.5rem;
    padding: 1.2rem 1.4rem;
    background: rgba(232, 85, 222, 0.08);
    border: 1px solid rgba(232, 85, 222, 0.3);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}
.result-box .short-url { font-weight: 600; font-size: 1.05rem; color: var(--color-primary); word-break: break-all; }

.alert { padding: 0.9rem 1.2rem; border-radius: 10px; margin-bottom: 1.25rem; }
.alert-error { background: rgba(239, 68, 68, 0.12); color: #f87171; border: 1px solid rgba(248, 113, 113, 0.3); }

.links-table { width: 100%; border-collapse: collapse; margin-top: 2.5rem; }
.links-table th, .links-table td { padding: 0.85rem 0.9rem; text-align: left; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
.links-table th { color: var(--color-text-muted); font-size: 0.78rem; text-transform: uppercase; }
.links-table .orig-url { color: var(--color-text-muted); max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; vertical-align: middle; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1.2rem; margin: 2rem 0; }
.stat-box { background: var(--color-card); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.3rem; text-align: center; }
.stat-box .num { display: block; font-size: 1.8rem; font-weight: 700; color: var(--color-primary); }
.stat-box .label { color: var(--color-text-muted); font-size: 0.82rem; }

.breakdown-list { display: flex; flex-direction: column; gap: 0.6rem; }
.breakdown-row { display: flex; align-items: center; gap: 0.8rem; }
.breakdown-row .bd-label { width: 110px; font-size: 0.85rem; color: var(--color-text-muted); flex-shrink: 0; }
.breakdown-row .bd-bar { flex: 1; background: rgba(255, 255, 255, 0.06); border-radius: 20px; height: 10px; overflow: hidden; }
.breakdown-row .bd-fill { background: var(--gradient-primary); height: 100%; border-radius: 20px; }
.breakdown-row .bd-count { width: 30px; text-align: right; font-size: 0.85rem; color: var(--color-text-muted); }

.demo-footer { text-align: center; padding: 2rem 0; color: var(--color-text-muted); font-size: 0.85rem; border-top: 1px solid var(--color-border); }

/* ===== Kanban board ===== */
.kanban-board { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; align-items: start; }
.kanban-column {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.1rem;
    min-height: 200px;
}
.kanban-column.drag-over { border-color: var(--color-primary); background: rgba(232, 85, 222, 0.06); }
.kanban-column-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.kanban-column-header h3 { font-size: 0.95rem; }
.kanban-count { background: rgba(255, 255, 255, 0.08); color: var(--color-text-muted); font-size: 0.75rem; padding: 0.15rem 0.55rem; border-radius: 20px; }
.kanban-tasks { display: flex; flex-direction: column; gap: 0.7rem; min-height: 40px; }

.task-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--priority-color, var(--color-primary));
    border-radius: 8px;
    padding: 0.8rem 0.9rem;
    cursor: grab;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.task-card:active { cursor: grabbing; }
.task-card.dragging { opacity: 0.4; }
.task-card:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(0, 0, 0, 0.3); }
.task-card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.5rem; }
.task-card-title { font-size: 0.9rem; font-weight: 500; word-break: break-word; }
.task-delete { background: none; border: none; color: var(--color-text-muted); cursor: pointer; font-size: 1rem; line-height: 1; padding: 0; }
.task-delete:hover { color: #f87171; }
.task-priority-badge { display: inline-block; margin-top: 0.5rem; font-size: 0.7rem; padding: 0.15rem 0.5rem; border-radius: 20px; background: var(--priority-color, var(--color-primary)); color: #fff; text-transform: capitalize; }

.add-task-form { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.8rem; }
.add-task-form input, .add-task-form select {
    padding: 0.55rem 0.7rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text);
    font-family: inherit;
    font-size: 0.85rem;
}
.add-task-toggle { color: var(--color-text-muted); font-size: 0.85rem; background: none; border: 1px dashed var(--color-border); border-radius: 6px; padding: 0.5rem; width: 100%; cursor: pointer; margin-top: 0.8rem; }
.add-task-toggle:hover { color: #fff; border-color: var(--color-text-muted); }

@media (max-width: 800px) {
    .kanban-board { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .links-table .orig-url { max-width: 120px; }
    .demo-hero h1 { font-size: 1.7rem; }
}