body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    color: #18212b;
    background:
        radial-gradient(circle at top left, #d7ecff 0, transparent 30%),
        radial-gradient(circle at bottom right, #ffe4cc 0, transparent 28%),
        #f3efe6;
}

* {
    box-sizing: border-box;
}

a {
    color: #0f5cc0;
    word-break: break-all;
}

code {
    background: #edf2f7;
    border-radius: 6px;
    padding: 2px 6px;
}

.wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 36px 18px 56px;
}

.wrap.narrow {
    max-width: 720px;
    padding: 48px 20px;
}

.panel {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid #d7deea;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(32, 54, 86, 0.12);
    backdrop-filter: blur(10px);
}

.hero {
    padding: 24px;
    margin-bottom: 18px;
}

.hero h1,
.panel h1 {
    margin: 0 0 8px;
    font-size: 34px;
}

.hero p,
.panel p {
    margin: 0;
    color: #5d6a78;
    line-height: 1.6;
}

.panel-body {
    padding: 28px;
}

form,
.toolbar {
    display: grid;
    gap: 12px;
}

.inline-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 24px;
}

input {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #c1cad7;
    border-radius: 12px;
    font-size: 15px;
}

.inline-form input {
    flex: 1 1 420px;
}

button,
.logout,
.button-link {
    display: inline-block;
    padding: 11px 14px;
    border: 0;
    border-radius: 12px;
    background: #0f766e;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

button:hover,
.logout:hover,
.button-link:hover {
    background: #0c5e58;
}

.danger {
    background: #b42318;
}

.danger:hover {
    background: #912018;
}

.notice,
.card,
.audio-player {
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: 12px;
}

.notice.error,
.card.error {
    background: #fff0ee;
    color: #b42318;
    border: 1px solid #f0b7b1;
}

.notice.success,
.card.success {
    background: #edfdf4;
    color: #1f6b43;
    border: 1px solid #b5e3c8;
}

.audio-player {
    background: #eef6ff;
    border: 1px solid #a8c9f0;
    color: #28435c;
}

.audio-player strong {
    display: block;
    margin-bottom: 8px;
}

.audio-seq,
.mono {
    font-family: Consolas, monospace;
    word-break: break-all;
}

.hint,
.meta {
    color: #5d6a78;
    font-size: 14px;
}

.toolbar {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 0 24px 18px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 18px;
    padding: 0 24px 18px;
}

.subpanel {
    border: 1px solid #e3e8ef;
    border-radius: 16px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.7);
}

.subpanel h2 {
    margin: 0 0 8px;
    font-size: 20px;
}

.subpanel p {
    margin: 0 0 14px;
    color: #5d6a78;
    line-height: 1.5;
}

.table-wrap {
    overflow-x: auto;
    padding: 0 24px 24px;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 760px;
}

th,
td {
    padding: 14px 12px;
    border-bottom: 1px solid #e3e8ef;
    text-align: left;
    vertical-align: top;
}

th {
    color: #5d6a78;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.empty {
    padding: 24px;
    color: #5d6a78;
}

.actions form {
    margin: 0;
}

.landing-title {
    margin-bottom: 18px;
    font-size: 42px;
    line-height: 1.15;
}

.landing-copy {
    margin-bottom: 16px;
    font-size: 18px;
    line-height: 1.7;
    color: #334155;
}

.divider {
    height: 1px;
    margin: 28px 0;
    background: #d7deea;
}

.footer {
    margin-top: 28px;
    color: #5d6a78;
    font-size: 14px;
    text-align: center;
}