.focus-container {
    max-width: 1050px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem 1.5rem;
}

.zen-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s;
}

.zen-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* Timer Section */
.timer-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 3.5rem;
    position: relative;
}

.mode-chips {
    display: flex;
    gap: 10px;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.chip {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.chip:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.chip.active {
    background: rgba(0, 229, 255, 0.15);
    border-color: var(--cyan);
    color: var(--cyan);
}

/* Progress Ring & Clock */
.timer-display-wrap {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.progress-ring {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.06);
    stroke-width: 8;
}

.ring-progress {
    fill: none;
    stroke: var(--cyan);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 880;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 0.8s linear, stroke 0.3s ease;
}

.timer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 10;
}

.time-readout {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(3.5rem, 8vw, 5rem);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -2px;
    line-height: 1;
}

.timer-mode-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin-top: 10px;
}

/* Controls */
.timer-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-large {
    padding: 14px 36px;
    font-size: 1.1rem;
    border-radius: 999px;
}

.icon-only {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Bottom Grid */
.focus-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 850px) {
    .focus-grid {
        grid-template-columns: 1fr;
    }
}

.card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 24px;
    backdrop-filter: blur(14px);
}

.card-title {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--cyan);
    margin-bottom: 4px;
}

.card-title h3 {
    font-size: 1.15rem;
    color: var(--text-primary);
}

.card-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* Sound Tracks */
.sound-tracks {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.track-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 10px 16px;
    transition: border-color 0.2s;
}

.track-toggle {
    background: transparent;
    border: none;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.2s;
}

.track-toggle.active {
    color: var(--cyan);
    font-weight: 700;
}

.vol-slider {
    width: 100px;
    accent-color: var(--cyan);
    cursor: pointer;
}

/* Tasks */
.task-input-wrap {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.task-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 10px 14px;
    color: white;
    font-family: inherit;
    font-size: 0.95rem;
}

.task-input:focus {
    outline: none;
    border-color: var(--cyan);
}

.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 220px;
    overflow-y: auto;
}

.empty-tasks {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    padding: 24px 0;
}

.task-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.task-item.done span {
    text-decoration: line-through;
    color: var(--text-muted);
}

.task-check {
    cursor: pointer;
    margin-right: 10px;
    accent-color: var(--emerald);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--cyan);
    color: var(--bg-dark);
}

.btn-primary:hover {
    box-shadow: 0 0 25px rgba(0, 229, 255, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

/* Zen Mode Fullscreen */
body.zen-active .standard-nav,
body.zen-active .focus-grid {
    display: none !important;
}

body.zen-active .focus-container {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

body.zen-active .timer-section {
    margin-bottom: 0;
}

/* Mobile Responsiveness */
@media (max-width: 650px) {
    .focus-container {
        padding: 0 1rem 3rem 1rem;
    }
    .timer-display-wrap {
        width: 260px;
        height: 260px;
    }
    .progress-ring {
        width: 260px;
        height: 260px;
    }
    .ring-progress, .ring-bg {
        cx: 130; cy: 130; r: 115;
        stroke-dasharray: 722;
    }
    .mode-chips {
        gap: 6px;
    }
    .chip {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    .time-readout {
        font-size: 3.2rem;
    }
}