:root {
    --bg-color: #000000;
    --accent-color: #ff2d55;
    --text-color: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Space Grotesk', 'Orbit', sans-serif;
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

#ui-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    pointer-events: none;
}

#overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    padding: 3rem;
    border-radius: 2rem;
    text-align: center;
    pointer-events: auto;
    max-width: 85%;
    box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.8);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

#overlay.hidden {
    opacity: 0;
    transform: translate(-50%, -40%) scale(0.9);
    pointer-events: none;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -3px;
    margin-bottom: 0.5rem;
}

.accent {
    color: var(--accent-color);
    text-shadow: 0 0 30px rgba(255, 45, 85, 0.6);
}

#start-btn {
    background: var(--text-color);
    color: var(--bg-color);
    border: none;
    padding: 1.4rem 4rem;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 100px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

#start-btn:active {
    transform: scale(0.95);
}

#stats {
    position: absolute;
    top: calc(1.5rem + env(safe-area-inset-top));
    left: 1.5rem;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

#gps-stats {
    position: absolute;
    bottom: calc(1.5rem + env(safe-area-inset-bottom));
    left: 1.5rem;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.label {
    font-size: 0.65rem;
    opacity: 0.4;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.value {
    font-size: 1.8rem;
    font-weight: 700;
}

#env-stats {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    opacity: 0.6;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sep {
    opacity: 0.3;
}

.glass-btn {
    position: absolute;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    color: white;
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.3s ease;
    z-index: 20;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

#save-wallpaper-btn {
    bottom: calc(1.5rem + env(safe-area-inset-bottom));
    right: calc(6rem + 1.5rem);
    /* Sidebar offset */
}

#record-btn {
    bottom: calc(1.5rem + env(safe-area-inset-bottom));
    right: 1.5rem;
}

#record-btn.recording {
    background: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 25px rgba(255, 45, 85, 0.4);
}

.icon {
    width: 10px;
    height: 10px;
    background: var(--accent-color);
    border-radius: 50%;
}

#record-btn.recording .icon {
    background: white;
    animation: blink 1s infinite;
}

@keyframes blink {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }

    100% {
        opacity: 1;
    }
}

.hidden {
    opacity: 0 !important;
    pointer-events: none !important;
}

main {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}