:root {
    --bg-dark: #0a0a0a;
    --bg-darker: #000000;
    --text-light: #ffffff;
    --text-muted: #999999;
    --accent-cyan: #00d9ff;
    --accent-purple: #d946ef;
    --accent-blue: #4a90e2;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-orange: #f97316;
    --border-color: #333333;
    --card-bg: rgba(26, 26, 26, 0.6);
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f97316;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-dark);
    background-image: linear-gradient(135deg, rgba(74, 144, 226, 0.05) 0%, rgba(80, 227, 194, 0.05) 100%);
    color: var(--text-light);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    padding: 2rem;
    padding: max(2rem, env(safe-area-inset-top)) 2rem max(2rem, env(safe-area-inset-bottom)) 2rem;
    transition: background-image 0.5s ease;
}

body.work-mode {
    background-image: linear-gradient(135deg, rgba(74, 144, 226, 0.05) 0%, rgba(80, 227, 194, 0.05) 100%);
}

body.break-mode {
    background-image: linear-gradient(135deg, rgba(100, 200, 100, 0.05) 0%, rgba(100, 150, 200, 0.05) 100%);
}

.pomodoro-container {
    max-width: 800px;
    margin: 0 auto;
}

/* Header */
.pomodoro-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 1rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(74, 144, 226, 0.2);
}

.pomodoro-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

/* Timer Section */
.timer-section {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    margin-bottom: 2rem;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

.timer-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.1em;
}

.timer-type {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timer-task {
    font-size: 1rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
    min-height: 1.5rem;
}

.timer-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.btn-timer {
    padding: 10px 24px;
    border: 2px solid var(--border-color);
    background: var(--bg-dark);
    color: var(--text-light);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-timer:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(0, 217, 255, 0.3);
}

.btn-timer:active {
    transform: scale(0.95);
}

.btn-timer.btn-pause {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

.btn-timer.btn-pause:hover {
    box-shadow: 0 0 12px rgba(249, 115, 22, 0.3);
}

.btn-timer.btn-danger {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.btn-timer.btn-danger:hover {
    box-shadow: 0 0 12px rgba(239, 68, 68, 0.3);
}

.btn-timer.btn-skip {
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

.btn-timer.btn-skip:hover {
    box-shadow: 0 0 12px rgba(217, 70, 239, 0.3);
}

.pomodoro-stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.stat {
    text-align: center;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    font-family: 'JetBrains Mono', monospace;
}

/* Tasks Main Container (Matches Timer Section) */
.tasks-main-container {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

/* Add Task Section */
.add-task-section {
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    align-items: stretch;
}

.task-input {
    flex: 1;
    min-width: 250px;
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.task-input:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(0, 217, 255, 0.2);
}

.priority-select {
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.priority-select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(0, 217, 255, 0.2);
}

.priority-select option {
    background: var(--bg-dark);
    color: var(--text-light);
}

.btn-add {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    border: none;
    border-radius: 8px;
    color: var(--text-light);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-add:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 144, 226, 0.4);
}

.btn-add:active {
    transform: translateY(0);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 16px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    margin-bottom: -2px;
}

.tab-btn:hover {
    color: var(--accent-cyan);
}

.tab-btn.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.empty-state {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Tasks List */
.tasks-list,
.completed-tasks-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.task-item {
    background: rgba(255, 255, 255, 0.03);
    /* Subtle contrast against card bg */
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    transition: all 0.3s ease;
}

.task-item:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 4px 16px rgba(0, 217, 255, 0.1);
}

.task-item.active {
    border-color: var(--accent-cyan);
    background: rgba(0, 217, 255, 0.05);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.2);
}

.task-info {
    flex: 1;
}

.task-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.task-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
}

.task-name.completed {
    text-decoration: line-through;
    color: var(--text-muted);
}

.priority-badge {
    font-size: 0.7rem;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.priority-badge.high {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
}

.priority-badge.medium {
    background: rgba(249, 115, 22, 0.2);
    color: var(--accent-orange);
}

.priority-badge.low {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.task-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.sessions {
    display: inline-block;
    margin-right: 1rem;
}

.task-actions,
.completed-task-item .task-actions {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
}

.btn-action {
    padding: 8px 12px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.btn-action:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

.btn-action.active {
    border-color: var(--accent-cyan);
    background: rgba(0, 217, 255, 0.1);
    color: var(--accent-cyan);
}

.btn-action.delete {
    color: var(--accent-red);
}

.btn-action.delete:hover {
    border-color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
}

/* Completed Tasks */
.completed-task-item {
    background: rgba(255, 255, 255, 0.02);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    opacity: 0.7;
}

.completed-task-item .task-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.completed-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.btn-clear-completed {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    color: var(--accent-red);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    margin-top: 1rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-clear-completed:hover {
    border-color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
}

/* Settings Panel */
.settings-panel {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.setting-group label {
    font-weight: 500;
    color: var(--text-light);
    font-size: 0.95rem;
}

.setting-input {
    padding: 10px 12px;
    background: var(--bg-dark);
    border: 2px solid var(--border-color);
    color: var(--text-light);
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

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

.checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-cyan);
}

.setting-group button {
    padding: 10px 16px;
    border: 2px solid var(--border-color);
    background: var(--bg-dark);
    color: var(--text-light);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

#exportBtn {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

#exportBtn:hover {
    background: rgba(16, 185, 129, 0.1);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.3);
}

#resetDataBtn {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

#resetDataBtn:hover {
    background: rgba(239, 68, 68, 0.1);
    box-shadow: 0 0 12px rgba(239, 68, 68, 0.3);
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.app-footer p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin: 0;
}

.app-footer a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color 0.3s ease;
}

.app-footer a:hover {
    color: var(--accent-purple);
    text-decoration: underline;
}

.app-footer .footer-link {
    color: var(--accent-purple);
}

.app-footer .footer-link:hover {
    color: var(--accent-cyan);
}

.app-footer .bmc-logo {
    display: inline-block;
    margin-top: 1rem;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.app-footer .bmc-logo:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.app-footer .bmc-logo img {
    height: 60px;
    width: 217px;
}

.app-footer .view-all-apps-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 1rem auto 0 auto;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(45deg, var(--accent-blue), var(--accent-cyan));
    color: #ffffff !important;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    width: fit-content;
}

.app-footer .view-all-apps-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 242, 255, 0.3);
    text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .pomodoro-header h1 {
        font-size: 1.5rem;
    }

    .timer-display {
        font-size: 3rem;
    }

    .timer-section {
        padding: 1.5rem 1rem;
    }

    /* Tasks Container Responsive */
    .tasks-main-container {
        padding: 1.5rem 1rem;
    }

    .timer-controls {
        flex-direction: column;
    }

    .btn-timer {
        width: 100%;
    }

    .input-group {
        flex-direction: column;
    }

    .task-input,
    .priority-select {
        width: 100%;
    }

    .task-item {
        flex-direction: column;
        gap: 1rem;
    }

    .task-actions {
        width: 100%;
        justify-content: flex-end;
        margin-left: 0;
    }

    .completed-task-item {
        flex-direction: column;
        gap: 1rem;
    }

    .completed-task-item .task-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .tabs {
        justify-content: space-between;
    }

    .pomodoro-stats {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .pomodoro-header h1 {
        font-size: 1.2rem;
        gap: 6px;
    }

    .pomodoro-header h1 img {
        width: 24px;
        height: 24px;
    }

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

    .timer-type {
        font-size: 0.9rem;
    }

    .tabs {
        font-size: 0.8rem;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}