:root {
    --bg-color: #0a0a0a;
    --text-color: #ffffff;
    --accent-color: #ffffff;
    --transition-speed: 0.5s;
    --font-main: 'Outfit', sans-serif;
}

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

body,
html {
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    overflow: hidden;
}

#app {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.view {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) ease-in-out, transform var(--transition-speed) ease-out;
}

.view.active {
    opacity: 1;
    pointer-events: all;
    transform: scale(1);
}

.view.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
}

/* Landing Page Styles */
#landing-page {
    gap: 2rem;
}

.landing-title {
    font-size: 3rem;
    font-weight: 200;
    text-transform: uppercase;
    letter-spacing: 0.5rem;
    opacity: 0.9;
    margin-bottom: 3rem;
    animation: fadeup 1s ease-out;
}

@keyframes fadeup {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 0.9;
        transform: translateY(0);
    }
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.2s;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
}

.icon-btn:hover {
    transform: scale(1.1);
    opacity: 0.9;
}

.icon-btn:active {
    transform: scale(0.95);
}

.hint {
    font-weight: 300;
    opacity: 0.5;
    letter-spacing: 0.1rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.3;
    }

    50% {
        opacity: 0.7;
    }
}

/* Session Page Styles */
#session-page {
    justify-content: space-between;
    padding: 20vh 0;
}

.timer-container {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

#timer {
    font-size: 15vw;
    font-weight: 200;
    /* Thinner weight for minimalism */
    font-family: 'Outfit', sans-serif;
    /* Explicitly ensure Outfit is used */
    font-variant-numeric: tabular-nums;
    line-height: 1;
    letter-spacing: 0.05em;
    /* Slightly more spacing */
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.05);
    /* Reduced glow */
}

.controls {
    margin-bottom: 2rem;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.volume-control {
    display: flex;
    align-items: center;
    width: 100px;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    outline: none;
    transition: background 0.3s;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.icon-btn.small svg {
    width: 32px;
    height: 32px;
    opacity: 0.5;
    transition: opacity 0.2s;
}

.icon-btn.small:hover svg {
    opacity: 1;
}