/* --- Custom CSS Variables for Theming --- */
:root {
    --bg-body: #f3f4f6;
    --bg-card: rgba(255, 255, 255, 0.5);
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --border-card: rgba(255, 255, 255, 0.4);
    --toggle-bg: #d1d5db;
    --toggle-ball-bg: #ffffff;
    --accent-color: #008cff;
    --input-bg: rgba(0, 0, 0, 0.05);
}

html.dark {
    --bg-body: #111827;
    --bg-card: rgba(31, 41, 55, 0.5);
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --border-card: rgba(55, 65, 81, 0.5);
    --toggle-bg: #374151;
    --toggle-ball-bg: #111827;
    --input-bg: rgba(0, 0, 0, 0.2);
}

/* --- Applying Variables --- */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    transition: background-color 0.3s;
}
.main-card {
    background-color: var(--bg-card);
    border-color: var(--border-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.toggle-bg { background-color: var(--toggle-bg); }
.toggle-ball { background-color: var(--toggle-ball-bg); }
.accent-text { color: var(--accent-color); }
.input-field { 
    background-color: var(--input-bg); 
}
#analog-clock {
    width: 100%;
    max-width: 250px;
    height: 250px;
    margin: 0 auto;
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}