:root {
    color-scheme: light dark;
    --bg: #f0f0f0;
    --bg-image: none;
    --text: #1b1b1b;
    --card: #ffffff;
    --number-bg: #eeeeee;
    --button-bg: #1b1b1b;
    --button-text: #ffffff;
    --button-border: #1b1b1b;
}

:root[data-theme="dark"] {
    --bg: #0f1115;
    --text: #f5f5f5;
    --card: #1a1d24;
    --number-bg: #2a2f3a;
    --button-bg: #f5f5f5;
    --button-text: #101216;
    --button-border: #f5f5f5;
}

body {
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg);
    background-image: var(--bg-image);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--text);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.container {
    text-align: center;
    background-color: var(--card);
    padding: 24px 28px;
    border-radius: 12px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(6px);
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.subtitle {
    margin: 6px 0 0;
    font-size: 0.95em;
    opacity: 0.8;
}

.weather {
    font-size: 0.95em;
    opacity: 0.8;
    margin: 4px 0 8px;
}

.numbers {
    display: flex;
    gap: 10px;
    margin: 20px 0;
    justify-content: center;
    min-height: 40px;
}

.number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--number-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2em;
    transition: background-color 0.2s ease;
    opacity: 0;
    transform: translateY(-20px) scale(0.9);
    animation: ball-roll 0.5s ease forwards;
}

button {
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
    border-radius: 999px;
    border: 1px solid var(--button-border);
    background-color: var(--button-bg);
    color: var(--button-text);
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

#theme-toggle {
    min-width: 110px;
}

.controls {
    display: flex;
    justify-content: center;
    margin: 12px 0 4px;
    gap: 12px;
    flex-wrap: wrap;
}

.upload {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px dashed var(--button-border);
    cursor: pointer;
    font-size: 0.9em;
    background: transparent;
}

.upload input {
    display: none;
}

.select {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    border: 1px solid var(--button-border);
    font-size: 0.9em;
    background: transparent;
}

.select select,
.select input {
    border: none;
    background: transparent;
    color: var(--text);
    font: inherit;
    outline: none;
    min-width: 110px;
}

.tm-section {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    display: grid;
    gap: 12px;
    justify-items: center;
}

.ad-slot {
    margin: 20px 0 10px;
    width: min(100%, 420px);
    padding: 12px;
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    background: rgba(0, 0, 0, 0.02);
}

.ad-label {
    font-size: 0.75em;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    opacity: 0.6;
    margin-bottom: 6px;
}

.content-block {
    margin: 18px 0;
    text-align: left;
    max-width: 540px;
}

.content-block h2 {
    font-size: 1.1em;
    margin: 0 0 8px;
}

.content-block p {
    margin: 0;
    line-height: 1.6;
    opacity: 0.9;
}

.content-block ul {
    margin: 0;
    padding-left: 18px;
    line-height: 1.6;
    opacity: 0.9;
}

#webcam-container canvas {
    border-radius: 12px;
    border: 1px solid var(--button-border);
}

#label-container {
    display: grid;
    gap: 6px;
    text-align: left;
    width: 100%;
    max-width: 280px;
    font-size: 0.9em;
}

.tm-status {
    font-size: 0.9em;
    opacity: 0.8;
}

@keyframes ball-roll {
    0% {
        opacity: 0;
        transform: translateY(-20px) scale(0.9) rotate(-120deg);
    }
    60% {
        opacity: 1;
        transform: translateY(6px) scale(1.05) rotate(20deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1) rotate(0deg);
    }
}