:root {
    --bg: #0f172a;
    --surface: #1e293b;
    --border: rgba(139, 92, 246, .12);
    --text: #e2e8f0;
    --text2: #94a3b8;
    --text3: #475569;
    --primary: #8b5cf6;
    --primary-hover: #7c3aed;
    --glow: rgba(139, 92, 246, .2);
    --sans: 'Inter', system-ui, sans-serif;
    --r: 12px;
    --rs: 8px;
    --t: 200ms ease
}

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

html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased
}

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

.app-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border)
}

.header-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center
}

h1 {
    font-size: 1.05rem;
    font-weight: 700
}

.app-main {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px
}

.editor-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r)
}

.editor-card textarea {
    width: 100%;
    padding: 18px;
    background: transparent;
    border: none;
    font-family: var(--sans);
    font-size: .95rem;
    color: var(--text);
    resize: vertical;
    line-height: 1.7
}

.editor-card textarea:focus {
    outline: none
}

.editor-card textarea::placeholder {
    color: var(--text3)
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 10px
}

.case-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--rs);
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color var(--t)
}

.case-card:hover {
    border-color: var(--primary)
}

.cc-header {
    display: flex;
    justify-content: space-between;
    align-items: center
}

.cc-label {
    font-size: .7rem;
    font-weight: 600;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: .5px
}

.cc-copy {
    padding: 3px 8px;
    font-size: .7rem;
    font-weight: 600;
    color: var(--text2);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--t)
}

.cc-copy:hover {
    border-color: var(--primary);
    color: var(--primary)
}

.cc-value {
    font-size: .87rem;
    color: var(--primary);
    word-break: break-all;
    min-height: 24px
}

.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 24px;
    background: var(--primary);
    color: #fff;
    border-radius: var(--rs);
    font-size: .87rem;
    font-weight: 600;
    z-index: 200;
    animation: ts .3s ease
}

@keyframes ts {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(8px)
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0)
    }
}

@media(max-width:500px) {
    .cases-grid {
        grid-template-columns: 1fr
    }
}