/* 집중 타이머 스타일 */

.focus-container {
    width: 420px;
    padding: 2rem 2rem 1.5rem;
}

.back-link {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity 0.2s;
}

.back-link:hover {
    opacity: 0.7;
}

/* 탭 네비게이션 */
.tab-nav {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
    overflow: hidden;
    border: 2px solid var(--primary-color);
}

.tab-btn {
    flex: 1;
    padding: 0.6rem 1rem;
    border: none;
    border-radius: 0;
    background: transparent;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: none;
    transition: background-color 0.2s, color 0.2s;
}

.tab-btn:hover {
    background: transparent;
    transform: none;
    opacity: 0.8;
}

.tab-btn.active {
    background-color: var(--primary-color);
    color: #fff;
}

.tab-btn.active:hover {
    background-color: var(--primary-color);
    opacity: 1;
}

/* 화면 전환 */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* 타이머 디스플레이 */
.timer-display {
    position: relative;
    width: 220px;
    height: 220px;
    margin: 0 auto 1.5rem;
}

.progress-ring {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--shadow-color);
    stroke-width: 8;
}

.progress-ring-fill {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 678.58;
    stroke-dashoffset: 678.58;
    transition: stroke-dashoffset 1s linear;
}

.timer-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--text-color);
    letter-spacing: 2px;
}

/* 타이머 컨트롤 */
.timer-controls {
    display: flex;
    gap: 0.6rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.control-btn {
    padding: 0.7rem 1.2rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    min-width: 80px;
}

.start-btn {
    background-color: #27ae60;
}

.start-btn:hover {
    background-color: #219a52;
}

.pause-btn {
    background-color: var(--secondary-color);
}

.pause-btn:hover {
    background-color: #e09510;
}

.reset-btn {
    background-color: #95a5a6;
}

.reset-btn:hover {
    background-color: #7f8c8d;
}

.finish-btn {
    background-color: var(--primary-color);
}

.finish-btn:hover {
    background-color: var(--btn-hover);
}

.save-btn {
    background-color: #27ae60;
}

.save-btn:hover {
    background-color: #219a52;
}

.discard-btn {
    background-color: #e74c3c;
    font-size: 0.85rem;
}

.discard-btn:hover {
    background-color: #c0392b;
}

/* 진행 중 메모 */
.mid-log-section {
    margin-top: 1.2rem;
    border-top: 1px solid var(--shadow-color);
    padding-top: 1rem;
}

.mid-log-input-row {
    display: flex;
    gap: 0.5rem;
}

.mid-log-input {
    flex: 1;
    padding: 0.6rem 0.8rem;
    border: 2px solid var(--shadow-color);
    border-radius: 0.5rem;
    font-family: var(--font-family);
    font-size: 0.9rem;
    background: var(--card-bg);
    color: var(--text-color);
    transition: border-color 0.2s;
}

.mid-log-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.mid-log-add-btn {
    min-width: 60px;
    padding: 0.6rem 0.8rem;
    font-size: 0.85rem;
    background-color: var(--primary-color);
}

.mid-log-add-btn:hover {
    background-color: var(--btn-hover);
}

.mid-log-list {
    list-style: none;
    padding: 0;
    margin: 0.8rem 0 0;
    text-align: left;
}

.mid-log-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    margin-bottom: 0.3rem;
    background: var(--background-color);
    border-radius: 0.4rem;
    font-size: 0.85rem;
}

.mid-log-time {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.8rem;
    min-width: 42px;
    font-variant-numeric: tabular-nums;
}

.mid-log-note {
    flex: 1;
    color: var(--text-color);
    word-break: break-word;
}

.mid-log-remove {
    background: none;
    border: none;
    color: #e74c3c;
    cursor: pointer;
    font-size: 0.75rem;
    padding: 0.1rem 0.3rem;
    border-radius: 0.3rem;
    box-shadow: none;
    opacity: 0.4;
    transition: opacity 0.2s;
}

.mid-log-remove:hover {
    opacity: 1;
    background: rgba(231, 76, 60, 0.1);
    transform: none;
}

/* 알람 화면 */
.alarm-notice {
    margin-bottom: 1.2rem;
}

.alarm-icon {
    font-size: 3rem;
    animation: shake 0.5s ease-in-out infinite alternate;
    margin-bottom: 0.5rem;
}

@keyframes shake {
    0% { transform: rotate(-10deg); }
    100% { transform: rotate(10deg); }
}

.alarm-notice h2 {
    color: var(--secondary-color);
    margin: 0.3rem 0;
    font-size: 1.5rem;
}

.session-duration {
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.95rem;
    margin: 0.3rem 0 0;
}

/* 기록 화면 - 진행 중 메모 요약 */
.record-mid-logs {
    text-align: left;
    margin-bottom: 1rem;
    padding: 0.8rem;
    background: var(--background-color);
    border-radius: 0.5rem;
}

.record-mid-logs h3 {
    font-size: 0.9rem;
    color: var(--primary-color);
    margin: 0 0 0.5rem;
}

/* 기록 입력 폼 */
.record-form {
    text-align: left;
}

.record-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-size: 0.95rem;
}

.record-form textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--shadow-color);
    border-radius: 0.5rem;
    font-family: var(--font-family);
    font-size: 0.95rem;
    resize: vertical;
    background: var(--card-bg);
    color: var(--text-color);
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.record-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.record-actions {
    display: flex;
    gap: 0.8rem;
    margin-top: 1rem;
    justify-content: center;
}

/* 기록 목록 */
.history-list {
    text-align: left;
    max-height: 400px;
    overflow-y: auto;
}

.history-date-group {
    margin-bottom: 1.2rem;
}

.history-date {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    padding-bottom: 0.3rem;
    border-bottom: 1px solid var(--shadow-color);
}

.history-card {
    background: var(--background-color);
    border-radius: 0.5rem;
    padding: 0.8rem;
    margin-bottom: 0.5rem;
    transition: transform 0.15s;
}

.history-card:hover {
    transform: translateX(4px);
}

.history-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
}

.history-time {
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.6;
}

.history-duration {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--secondary-color);
    background: rgba(245, 166, 35, 0.15);
    padding: 0.15rem 0.5rem;
    border-radius: 1rem;
}

.history-note {
    font-size: 0.9rem;
    color: var(--text-color);
    line-height: 1.4;
    white-space: pre-wrap;
    word-break: break-word;
}

/* 기록 카드 내 활동 로그 */
.history-logs {
    margin: 0.4rem 0;
    padding: 0.4rem 0;
    border-top: 1px dashed var(--shadow-color);
    border-bottom: 1px dashed var(--shadow-color);
}

.history-log-item {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    font-size: 0.8rem;
    padding: 0.15rem 0;
}

.history-log-time {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.75rem;
    min-width: 38px;
    font-variant-numeric: tabular-nums;
}

.history-log-note {
    color: var(--text-color);
    opacity: 0.8;
}

.history-empty {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-color);
    opacity: 0.5;
}

.history-empty p {
    margin: 0.3rem 0;
}

#clear-history-btn {
    margin-top: 1rem;
    width: 100%;
}

/* 알람 깜빡임 */
@keyframes flash {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.alarm-flash {
    animation: flash 0.8s ease-in-out 3;
}

/* 개별 기록 삭제 버튼 */
.history-delete-btn {
    background: none;
    border: none;
    color: #e74c3c;
    cursor: pointer;
    font-size: 0.8rem;
    padding: 0.1rem 0.4rem;
    border-radius: 0.3rem;
    box-shadow: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.history-card:hover .history-delete-btn {
    opacity: 0.6;
}

.history-delete-btn:hover {
    opacity: 1 !important;
    background: rgba(231, 76, 60, 0.1);
    transform: none;
}