/*
* Beautiful Stopwatch & Countdown Timer
* A simple, elegant, and responsive timer with a glassmorphism design.
* Author: Aditya Chauhan
* Website: https://cloudxtech.io/
*/

/* ====== Layout & Background ====== */
:root {
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.15);
    --text: #ffffff;
    --muted: #d8e1e8;
    --btn-bg: rgba(255, 255, 255, 0.12);
    --btn-bg-hover: rgba(255, 255, 255, 0.2);
    --accent: #7ee3ff;
}
* {
    box-sizing: border-box;
}
html,
body {
    height: 100%;
}
body {
    margin: 0;
    height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family:
        system-ui,
        -apple-system,
        "Segoe UI",
        Roboto,
        Inter,
        Arial,
        sans-serif;
    color: var(--text);
    /* Cool, auto-changing background */
    background: linear-gradient(120deg, #0f172a, #0b2b4b, #0a3c5e, #0f172a);
    background-size: 300% 300%;
    animation: bgShift 18s ease-in-out infinite;
}
@keyframes bgShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.card {
    width: min(92vw, 780px);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 24px;
    backdrop-filter: blur(12px) saturate(140%);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}
.title {
    font-weight: 800;
    letter-spacing: 0.4px;
    font-size: clamp(18px, 2.6vw, 26px);
}
.tabs {
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.06);
    padding: 6px;
    border-radius: 14px;
    border: 1px solid var(--card-border);
}
.tab {
    border: none;
    background: transparent;
    color: var(--text);
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
}
.tab[aria-selected="true"] {
    background: var(--btn-bg);
}

.display {
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 14px;
    margin: 10px 0 18px;
}
.time {
    font-variant-numeric: tabular-nums;
    letter-spacing: 1.5px;
    font-size: clamp(34px, 10vw, 80px);
    font-weight: 800;
    text-shadow: 0 0 24px rgba(126, 227, 255, 0.35);
}
.ms {
    font-size: clamp(14px, 3.4vw, 22px);
    opacity: 0.9;
    padding-bottom: 10px;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 14px;
}
.btn {
    border: none;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--btn-bg);
    color: var(--text);
    cursor: pointer;
    font-weight: 700;
    transition:
        transform 0.08s ease,
        background 0.25s ease;
}
.btn:hover {
    background: var(--btn-bg-hover);
}
.btn:active {
    transform: translateY(1px);
}
.btn.primary {
    background: linear-gradient(135deg, #7ee3ff, #a0f0ff);
    color: #05212c;
}
.btn.primary:hover {
    filter: brightness(1.05);
}
.btn.danger {
    background: rgba(255, 68, 68, 0.15);
    border: 1px solid rgba(255, 68, 68, 0.35);
}

.section {
    display: none;
}
.section.active {
    display: block;
}

/* Laps */
.laps {
    max-height: 240px;
    overflow: auto;
    border-top: 1px dashed var(--card-border);
    margin-top: 12px;
    padding-top: 8px;
}
.lap-row {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 6px;
    border-radius: 10px;
}
.lap-row:nth-child(odd) {
    background: rgba(255, 255, 255, 0.04);
}
.lap-label {
    opacity: 0.9;
}
.lap-time {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
}

/* Countdown styles */
.countdown-setup {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}
.field {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 10px 12px;
    font-size: 16px;
    min-width: 110px;
    text-align: center;
    outline: none;
}
.helper {
    text-align: center;
    font-size: 13px;
    color: var(--muted);
    margin-top: 6px;
}

.progress-wrap {
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    margin: 10px 0 4px;
}
.progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #7ee3ff, #a7a0ff, #7ee3ff);
    background-size: 200% 100%;
    animation: prog 3s linear infinite;
}
@keyframes prog {
    0% {
        background-position: 0%;
    }
    100% {
        background-position: 200%;
    }
}

.footer-note {
    text-align: center;
    color: var(--muted);
    margin-top: 10px;
    font-size: 12px;
}