:root {
    --bg-dark: #09090b;
    --glass: rgba(255, 255, 255, 0.05);
    --border: rgba(255, 255, 255, 0.1);
    --neon-blue: #00f3ff;
    --neon-purple: #bc13fe;
    --text: #ffffff;
    --ease-elastic: cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
}

body {
    min-height: 100vh;
    background: radial-gradient(circle at center, #1a1a2e 0%, var(--bg-dark) 100%);
    font-family: 'Segoe UI', sans-serif;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text);
}

.scene {
    perspective: 1000px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    z-index: 1;
}

/* --- Morphing Card --- */
.clock-card {
    position: relative;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    box-shadow: 0 20px 50px rgba(0,0,0,0.5), 
                inset 0 0 20px rgba(255,255,255,0.05);
    
    /* Default State (0: Analog) */
    width: 320px;
    height: 320px;
    border-radius: 50%;
    
    transition: width 0.8s var(--ease-elastic),
                height 0.8s var(--ease-elastic),
                border-radius 0.8s var(--ease-elastic),
                transform 0.1s ease-out; /* Tilt is separate */
    
    cursor: pointer;
    overflow: hidden;
    transform-style: preserve-3d;
    backface-visibility: hidden;
}

/* State 1 (Digital) -> Rect Shape */
.clock-card[data-state="1"] {
    width: 320px;
    height: 160px;
    border-radius: 20px;
}

/* --- Faces Common --- */
.face {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.6s ease;
    transform: scale(0.8);
}

/* Active Face Logic */
.clock-card[data-state="0"] .analog-face,
.clock-card[data-state="1"] .digital-face,
.clock-card[data-state="2"] .ring-face {
    opacity: 1;
    pointer-events: all;
    transform: scale(1);
    transition-delay: 0.2s; /* Wait for morph to start */
}

/* --- State 1: Digital --- */
.time-display {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: #ffffff;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.3));
    animation: breathe-text 4s ease-in-out infinite;
}

.date-display {
    font-size: 1rem;
    letter-spacing: 4px;
    color: var(--neon-blue);
    margin-top: 5px;
    text-transform: uppercase;
}

/* --- State 2: Analog --- */
.analog-face {
    position: relative;
}

.marker {
    position: absolute;
    width: 4px; height: 15px;
    background: var(--border);
    left: 50%; transform: translateX(-50%);
}
.twelve { top: 20px; }
.six { bottom: 20px; }
.three { right: 26px; left: auto; top: 50%; transform: translateY(-50%) rotate(90deg); }
.nine { left: 26px; top: 50%; transform: translateY(-50%) rotate(90deg); }

.hand {
    position: absolute;
    bottom: 50%; left: 50%;
    transform-origin: bottom center;
    border-radius: 10px;
    box-shadow: 0 0 5px rgba(0,0,0,0.5);
}

.hour { width: 6px; height: 25%; background: #fff; margin-left: -3px; }
.min { width: 4px; height: 35%; background: var(--neon-blue); margin-left: -2px; }
.sec { width: 2px; height: 40%; background: var(--neon-purple); margin-left: -1px; }

.center-dot {
    width: 12px; height: 12px;
    background: #fff;
    border-radius: 50%;
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    box-shadow: 0 0 10px var(--neon-blue);
    animation: breathe-shadow-blue 3s ease-in-out infinite;
}

/* --- State 3: Rings --- */
.ring-svg {
    width: 100%; height: 100%;
    transform: rotate(-90deg);
}

.track {
    fill: none;
    stroke: rgba(255,255,255,0.05);
    stroke-width: 6;
}

.progress {
    fill: none;
    stroke-width: 6;
    stroke-linecap: round;
    transition: stroke-dashoffset 0.1s linear; /* Smooth update */
}

#ring-s { stroke: var(--neon-purple); animation: breathe-purple 3s ease-in-out infinite; }
#ring-m { stroke: var(--neon-blue); animation: breathe-blue 3s ease-in-out infinite; }
#ring-h { stroke: #fff; }

.mini-time {
    position: absolute;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}

/* --- Infinity Mode --- */
.infinity-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0,0,0,0.8);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    border-radius: inherit; /* Follows morph shape */
}

.infinity-symbol {
    font-size: 5rem;
    color: var(--neon-blue);
    text-shadow: 0 0 20px var(--neon-blue), 0 0 40px var(--neon-purple);
    animation: pulse 2s infinite ease-in-out;
}

.clock-card.infinity-active .infinity-overlay {
    opacity: 1;
}

.clock-card.infinity-active .face {
    opacity: 0 !important;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.1); opacity: 1; }
}

/* --- Caption --- */
.caption {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* --- Settings UI --- */
.fullscreen-toggle {
    position: fixed;
    top: 20px;
    right: 70px;
    background: var(--glass);
    border: 1px solid var(--border);
    color: var(--text);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px);
    z-index: 100;
    transition: transform 0.3s ease, background 0.3s;
}

.fullscreen-toggle:hover {
    background: rgba(255,255,255,0.1);
    transform: scale(1.1);
}

.settings-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--glass);
    border: 1px solid var(--border);
    color: var(--text);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px);
    z-index: 100;
    transition: transform 0.3s ease, background 0.3s;
}

.settings-toggle:hover {
    background: rgba(255,255,255,0.1);
    transform: rotate(90deg);
}

.settings-panel {
    position: fixed;
    top: 70px;
    right: 20px;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transform: translateX(150%);
    transition: transform 0.4s var(--ease-elastic);
    z-index: 99;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    width: 200px;
    max-height: 80vh;
    overflow-y: auto;
}

.settings-panel.open {
    transform: translateX(0);
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting-group label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.6);
}

input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 100%;
    height: 35px;
    background: none;
    cursor: pointer;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--border);
    border-radius: 6px;
}

select {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px;
    border-radius: 5px;
    outline: none;
    cursor: pointer;
    width: 100%;
    font-family: inherit;
}

select option {
    background: #09090b;
    color: #fff;
}

/* Range Slider */
input[type="range"] {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px; height: 16px;
    background: var(--text);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

/* --- Breathing Animations --- */
@keyframes breathe-text {
    0%, 100% { filter: drop-shadow(0 0 10px rgba(255,255,255,0.3)); }
    50% { filter: drop-shadow(0 0 25px rgba(255,255,255,0.6)); }
}

@keyframes breathe-shadow-blue {
    0%, 100% { box-shadow: 0 0 10px var(--neon-blue); }
    50% { box-shadow: 0 0 25px var(--neon-blue); }
}

@keyframes breathe-blue {
    0%, 100% { filter: drop-shadow(0 0 4px var(--neon-blue)); }
    50% { filter: drop-shadow(0 0 15px var(--neon-blue)); }
}

@keyframes breathe-purple {
    0%, 100% { filter: drop-shadow(0 0 4px var(--neon-purple)); }
    50% { filter: drop-shadow(0 0 15px var(--neon-purple)); }
}

/* Background Orbs */
.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.6;
    z-index: 0;
    transition: background 0.5s ease;
    animation: orb-pulse 2s ease-in-out infinite;
}

.orb-1 {
    width: 800px;
    height: 800px;
    top: -200px;
    left: -200px;
    background: var(--neon-blue);
}

.orb-2 {
    width: 1000px;
    height: 1000px;
    bottom: -300px;
    right: -300px;
    background: var(--neon-purple);
    animation-delay: 1s;
}

@keyframes orb-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* --- Mobile Responsive --- */
@media (max-width: 500px) {
    .clock-card {
        width: 280px;
        height: 280px;
    }

    .clock-card[data-state="1"] {
        width: 280px;
        height: 140px;
    }

    .time-display {
        font-size: 2.5rem;
    }

    .infinity-symbol {
        font-size: 4rem;
    }

    .settings-panel {
        width: calc(100vw - 40px);
        right: 20px;
        top: 70px;
        transform: translateY(100vh); /* Slide up from bottom or keep side slide */
    }
    
    .settings-panel.open {
        transform: translateY(0); /* Override side slide for mobile if desired, or keep translateX */
        transform: translateX(0);
    }

    /* Adjust markers for smaller size */
    .twelve { top: 15px; }
    .six { bottom: 15px; }
    .three { right: 15px; }
    .nine { left: 15px; }
}