:root {
    --bg-color: #000000;
    --text-main: #ffffff;
    --text-dim: #94a3b8;
    /* Volt Yellow Theme */
    --accent: #F1FF5E; 
    --accent-glow: rgba(241, 255, 94, 0.6);
    --accent-faded: rgba(241, 255, 94, 0.08);
    --transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    height: 100vh;
    width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: row; 
    width: 100%;
    height: 100%;
    max-width: 1200px;
    max-height: 800px;
    padding: 2rem;
    gap: 2rem;
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
        max-height: none;
        height: 100vh;
        padding: 1rem;
    }
    .panel { width: 100% !important; height: 50%; }
}

.panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 50%;
    position: relative;
}

.left-panel {
    border-right: 1px solid #111;
}

@media (max-width: 768px) { .left-panel { border-right: none; border-bottom: 1px solid #111; } }

/* Spiral Visualizer with Heavy Glow */
#spiral-svg {
    width: 90%;
    max-width: 420px;
    filter: drop-shadow(0 0 25px var(--accent-glow));
}

.spiral-path {
    fill: none;
    stroke-width: 4;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.spiral-ghost {
    stroke: var(--accent-faded);
}

.spiral-grow {
    stroke: var(--accent);
    transition: stroke-dashoffset 1s linear;
}

.right-panel {
    padding: 2rem;
    text-align: center;
}

.header-section {
    margin-bottom: 1.5rem;
    width: 100%;
}

.task-input {
    background: transparent;
    border: none;
    border-bottom: 2px solid #111;
    color: var(--text-main);
    font-size: 1.5rem;
    padding: 0.5rem;
    text-align: center;
    width: 100%;
    outline: none;
    transition: var(--transition);
    text-shadow: 0 0 10px rgba(255,255,255,0.2);
}

.task-input:focus {
    border-color: var(--accent);
    box-shadow: 0 4px 20px -5px var(--accent-glow);
}

.focus-label {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    text-shadow: 0 0 30px var(--accent-glow);
    letter-spacing: -0.02em;
}

/* Rolling Numeric Timer - Clean Look (No Glow) */
.timer-section {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(4rem, 10vw, 8.5rem);
    font-weight: 900;
    letter-spacing: -0.05em;
    overflow: hidden;
    margin: 1.5rem 0;
    background: #050505;
    border-radius: 28px;
    padding: 0 1.5rem;
    border: 1px solid #111;
    color: var(--accent);
    text-shadow: none;
}

.digit-box {
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    width: 0.7em;
}

.digit-strip {
    transition: transform 0.45s cubic-bezier(0.45, 0, 0.55, 1);
    display: flex;
    flex-direction: column;
}

.digit {
    height: 140px; 
    display: flex;
    align-items: center;
    justify-content: center;
}

.separator {
    padding: 0 0.05em;
    line-height: 130px;
}

/* Controls */
.controls-section {
    display: flex;
    gap: 1.2rem;
    justify-content: center;
    margin-top: 0.5rem;
}

button {
    background: #111111;
    border: 1px solid #222;
    color: var(--text-main);
    padding: 0.9rem 1.8rem;
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    min-width: 120px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

button:hover {
    border-color: var(--accent);
    background: #000;
    transform: translateY(-2px);
    box-shadow: 0 0 15px var(--accent-faded);
}

button.primary {
    background: var(--accent);
    color: #000;
    border: none;
    box-shadow: 0 0 20px var(--accent-glow);
}

button.primary:hover {
    box-shadow: 0 0 40px var(--accent-glow);
    transform: scale(1.05) translateY(-2px);
}

/* Quick Add Buttons */
.quick-add-section {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.btn-small {
    min-width: 70px;
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    border-radius: 12px;
    background: rgba(241, 255, 94, 0.05);
    border: 1px solid rgba(241, 255, 94, 0.1);
    color: var(--accent);
}

.btn-small:hover {
    background: var(--accent-faded);
    border-color: var(--accent);
}

/* Share Button Styles */
.share-container {
    margin-top: 2rem;
}

#shareBtn {
    background: transparent;
    border: 1px dashed var(--accent);
    color: var(--accent);
    font-size: 0.8rem;
    min-width: auto;
    padding: 0.5rem 1rem;
    opacity: 0.7;
    cursor: pointer;
    transition: var(--transition);
}

#shareBtn:hover {
    opacity: 1;
    background: var(--accent-faded);
}

.hidden { display: none; }

#notification {
    position: fixed;
    top: 20px;
    background: #111;
    border: 1px solid var(--accent);
    padding: 0.75rem 1.8rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    box-shadow: 0 0 25px var(--accent-glow);
    transform: translateY(-100px);
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
}

#notification.show { transform: translateY(0); }