:root {
    color-scheme: light;
    font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(253, 224, 71, 0.16), transparent 26%),
        linear-gradient(180deg, #f7fafc 0%, #edf2f7 100%);
    color: #0f172a;
}

.mining-app {
    display: grid;
    gap: 20px;
    min-height: 100vh;
    padding: 20px;
}

.mining-hero,
.mining-panel {
    border: 1px solid rgba(148, 163, 184, 0.24);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(14px);
}

.mining-hero {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding: 24px;
}

.mining-kicker {
    margin: 0 0 10px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #92400e;
}

.mining-hero h1,
.panel-header h2 {
    margin: 0;
}

.mining-copy,
.panel-header p {
    margin: 8px 0 0;
    color: #475569;
    line-height: 1.5;
}

.mining-hero-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.preset-button,
.primary-button,
.secondary-button {
    border: 0;
    border-radius: 999px;
    padding: 11px 16px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.preset-button,
.secondary-button {
    background: #e2e8f0;
    color: #0f172a;
}

.primary-button {
    background: linear-gradient(180deg, #facc15, #f59e0b);
    color: #111827;
}

.mining-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.9fr);
    gap: 20px;
}

.mining-form,
.mining-sidebar {
    display: grid;
    gap: 20px;
}

.mining-panel {
    padding: 22px;
}

.panel-header {
    margin-bottom: 18px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.form-grid label,
.stat-card,
.history-item {
    display: grid;
    gap: 8px;
}

.form-grid span {
    font-size: 13px;
    font-weight: 700;
    color: #334155;
}

.form-grid input,
.form-grid select,
.form-grid textarea {
    width: 100%;
    border: 1px solid #cbd5e1;
    border-radius: 14px;
    padding: 12px 14px;
    font: inherit;
    background: #fff;
    color: #0f172a;
}

.form-grid textarea {
    resize: vertical;
}

.form-span-2 {
    grid-column: 1 / -1;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 18px;
    flex-wrap: wrap;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.stat-card {
    padding: 16px;
    border-radius: 18px;
    background: #f8fafc;
    border: 1px solid rgba(148, 163, 184, 0.18);
}

.stat-label,
.stat-meta {
    color: #64748b;
    font-size: 13px;
}

.stat-value {
    font-size: 22px;
    line-height: 1.2;
}

.history-list {
    display: grid;
    gap: 12px;
}

.history-empty {
    padding: 18px;
    border-radius: 18px;
    background: #f8fafc;
    color: #64748b;
}

.history-item {
    padding: 16px;
    border-radius: 18px;
    background: #f8fafc;
    border: 1px solid rgba(148, 163, 184, 0.16);
}

.history-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.history-title {
    font-weight: 700;
}

.history-note {
    margin: 0;
    color: #475569;
    line-height: 1.45;
}

.history-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    color: #64748b;
    font-size: 13px;
}

.toast {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 30;
    padding: 12px 16px;
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.92);
    color: #fff;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
}

@media (max-width: 1100px) {
    .mining-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .mining-app {
        padding: 14px;
    }

    .mining-hero {
        flex-direction: column;
    }

    .form-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
}