/* Study Room Styles */
.study-room-content {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Timer Section */
.timer-section {
    background: var(--card-background);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 6px var(--shadow-color);
}

.timer-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.timer-mode {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.mode-btn {
    background: var(--background-color);
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mode-btn.active {
    background: var(--primary-color);
    color: var(--background-dark);
}

.timer-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--background-color);
    border: 4px solid var(--primary-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 0 20px var(--shadow-color);
}

.timer-text {
    font-size: 4em;
    font-weight: bold;
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
}

.timer-controls {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.timer-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: var(--primary-color);
    color: var(--background-dark);
    font-size: 1.2em;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.timer-btn:hover:not(:disabled) {
    transform: scale(1.1);
    box-shadow: 0 0 15px var(--primary-color);
}

/* Session Info */
.session-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.info-card {
    background: var(--card-background);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 6px var(--shadow-color);
}

.info-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2em;
}

.info-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-color);
}

.info-item i {
    color: var(--primary-color);
}

/* Focus Features */
.focus-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--card-background);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 6px var(--shadow-color);
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2em;
}

.sound-controls {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.sound-btn {
    background: var(--background-color);
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.sound-btn:hover {
    background: var(--primary-color);
    color: var(--background-dark);
}

.sound-btn.active {
    background: var(--primary-color);
    color: var(--background-dark);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-color);
}

.volume-control input[type="range"] {
    flex: 1;
    height: 5px;
    background: var(--background-color);
    border-radius: 5px;
    outline: none;
    -webkit-appearance: none;
}

.volume-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 15px;
    height: 15px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
}

/* Task List */
.task-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.task-input {
    display: flex;
    gap: 10px;
}

.task-input input {
    flex: 1;
    background: var(--background-color);
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: 10px;
    border-radius: 10px;
    outline: none;
}

.task-input button {
    background: var(--primary-color);
    color: var(--background-dark);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.task-input button:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px var(--primary-color);
}

#tasks-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.task-item {
    background: var(--background-color);
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: 10px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.task-item.completed {
    opacity: 0.7;
    text-decoration: line-through;
}

.task-item button {
    background: none;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    padding: 5px;
    transition: all 0.3s ease;
}

.task-item button:hover {
    transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .timer-circle {
        width: 250px;
        height: 250px;
    }

    .timer-text {
        font-size: 3em;
    }

    .sound-controls {
        grid-template-columns: 1fr;
    }

    .focus-features {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.timer-circle.active {
    animation: pulse 1s infinite;
}

/* Study Calendar Styles */
.study-calendar {
    background: var(--card-background);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 6px var(--shadow-color);
}

.study-calendar h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.2em;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(53, 1fr);
    gap: 2px;
    margin-bottom: 15px;
}

.calendar-day {
    width: 10px;
    height: 10px;
    border-radius: 2px;
    background: var(--card-border);
    transition: transform 0.2s ease;
}

.calendar-day:hover {
    transform: scale(1.5);
}

.calendar-day.no-study {
    background: var(--card-border);
}

.calendar-day.low-study {
    background: var(--primary-color);
    opacity: 0.3;
}

.calendar-day.medium-study {
    background: var(--primary-color);
    opacity: 0.6;
}

.calendar-day.high-study {
    background: var(--primary-color);
    opacity: 1;
}

.calendar-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-color);
    font-size: 0.9em;
}

.legend-color {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.legend-color.no-study {
    background: var(--card-border);
}

.legend-color.low-study {
    background: var(--primary-color);
    opacity: 0.3;
}

.legend-color.medium-study {
    background: var(--primary-color);
    opacity: 0.6;
}

.legend-color.high-study {
    background: var(--primary-color);
    opacity: 1;
}