body {
    font-family:IRANSans,sans-serif,Arial!important;
    background: #101827;
    color: white;
    margin: 0;
    padding: 25px 12px;
}
.container {
    max-width: 950px;
    margin: auto;
    text-align: center;
}
h2 { color: #38bdf8; }
#addTimer {
    background: #0ea5e9;
    color: white;
    padding: 13px 22px;
    border: 0;
    border-radius: 9px;
    cursor: pointer;
    font: inherit;
    margin: 12px;
}
#timers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 20px;
}
.timer {
    background: #1e293b;
    padding: 20px;
    border-radius: 15px;
    box-sizing: border-box;
}
.timer h3 { color: #7dd3fc; }
.timer input {
    width: 40%;
    padding: 11px;
    border: 0;
    border-radius: 7px;
    text-align: center;
    font-size: 17px;
    box-sizing: border-box;
}
.display {
    direction: ltr;
    font-size: 42px;
    font-weight: bold;
    color: #4ade80;
    margin: 20px 0;
}
button {
    font-family: inherit;
    cursor: pointer;
    border: 0;
    border-radius: 7px;
    padding: 9px 12px;
    margin: 4px;
}
.start { background: #22c55e; color: white; }
.stop { background: #f59e0b; color: white; }
.reset { background: #64748b; color: white; }
.delete { background: #ef4444; color: white; }
.message {
    min-height: 24px;
    color: #facc15;
    margin-top: 12px;
}