:root {
    color-scheme: dark;
    font-family: "Avenir Next", "Trebuchet MS", "Segoe UI", "Helvetica Neue",
        Arial, sans-serif;
    font-size: clamp(1rem, 0.35vw + 0.95rem, 1.1rem);
    line-height: 1.4;
    background:
        radial-gradient(circle at top, rgba(246, 184, 91, 0.18), transparent 32%),
        linear-gradient(180deg, #27211d 0%, #161514 48%, #101010 100%);
    color: #f8f3eb;
    accent-color: #d9a44a;
    --page-width: min(1100px, calc(100vw - 2rem));
    --card-background: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.12);
    --card-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
    --input-background: rgba(17, 17, 17, 0.88);
    --button-background: linear-gradient(135deg, #6f5a42 0%, #8d714e 100%);
    --button-background-hover: linear-gradient(135deg, #84694b 0%, #b68a54 100%);
    --button-secondary: rgba(255, 255, 255, 0.08);
    --button-secondary-hover: rgba(255, 255, 255, 0.16);
    --border-radius: 10px;
}

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

html,
body {
    min-height: 100%;
}

body {
    width: var(--page-width);
    margin: 0 auto;
    padding: 2rem 0 2.5rem;
    background: transparent;
    color: inherit;
}

h1 {
    margin: 0;
    background: transparent;
    color: inherit;
}

.pageHeader {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
    background: transparent;
}

.title {
    font-size: clamp(2.2rem, 3vw, 3.8rem);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    text-align: center;
}

.timerGrid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.2rem;
    align-items: start;
    background: transparent;
}

.timerCard {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.15rem;
    border: 1px solid var(--card-border);
    border-radius: 22px;
    background: var(--card-background);
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(10px);
}

.timerTitle {
    font-size: 1.2rem;
    font-weight: 650;
    letter-spacing: 0.05em;
}

.timerControls {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.95fr);
    gap: 0.9rem;
    align-items: start;
    background: transparent;
}

.timerInputs,
.timerActions,
.globalButtonGrid {
    display: grid;
    gap: 0.75rem;
    background: transparent;
}

.timerInputs,
.timerActions {
    grid-auto-rows: minmax(0, auto);
}

.timerInput,
.timerButton,
.globalButton {
    width: 100%;
    min-height: 3.1rem;
    padding: 0.9rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.18);
    font: inherit;
    color: inherit;
}

.timerInput {
    background: var(--input-background);
}

.timerInput::placeholder {
    color: rgba(248, 243, 235, 0.58);
}

.timerButton,
.globalButton {
    background: var(--button-background);
    cursor: pointer;
    font-size: 0.98rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition:
        transform 140ms ease,
        box-shadow 140ms ease,
        background 140ms ease,
        border-color 140ms ease;
}

.timerButtonSecondary {
    background: var(--button-secondary);
}

.timerButton:hover,
.globalButton:hover {
    transform: translateY(-1px);
    background: var(--button-background-hover);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
}

.timerButtonSecondary:hover {
    background: var(--button-secondary-hover);
}

.timerButton:disabled,
.globalButton:disabled {
    cursor: not-allowed;
    opacity: 0.68;
    transform: none;
    box-shadow: none;
}

.timerInput:focus,
.timerButton:focus-visible,
.globalButton:focus-visible {
    outline: 2px solid rgba(217, 164, 74, 0.9);
    outline-offset: 2px;
}

.countdownBox {
    min-height: 3.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.04);
    color: rgba(248, 243, 235, 0.9);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-align: center;
}

.globalButtonGrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: min(540px, 100%);
    margin: 1.6rem auto 0;
}

.statusMessage {
    width: min(100%, 42rem);
    margin: 1.35rem auto 0;
    padding: 0.85rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.06);
    text-align: center;
}

.helperText {
    width: min(100%, 42rem);
    margin: 0.8rem auto 0;
    color: rgba(248, 243, 235, 0.72);
    text-align: center;
}

@media (max-width: 920px) {
    body {
        width: min(760px, calc(100vw - 1.5rem));
        padding-top: 1.5rem;
    }

    .timerGrid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    :root {
        font-size: clamp(0.96rem, 0.3vw + 0.92rem, 1rem);
    }

    body {
        width: calc(100vw - 1rem);
        padding: 1rem 0 1.5rem;
    }

    .title {
        font-size: clamp(1.9rem, 8vw, 2.7rem);
    }

    .timerCard {
        padding: 0.95rem;
        gap: 0.85rem;
    }

    .timerControls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0.7rem;
    }

    .globalButtonGrid {
        grid-template-columns: 1fr;
    }
}