/**
 * 4-7-8 Breathing Guide Styles
 * 4-7-8 호흡법 가이드 전용 스타일
 *
 * @package Zipper
 */

/* ========================================
   2컬럼 레이아웃 (데스크톱)
   ======================================== */

.br478-main-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
    align-items: start;
}

.br478-settings-col {
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: sticky;
    top: 100px;
}

.br478-guide-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
    border: 1px solid #e8e4dc;
    border-radius: 16px;
    padding: 32px 24px;
    min-height: 480px;
}

/* ========================================
   설정 패널
   ======================================== */

.br478-settings-panel {
    background: #fff;
    border: 1px solid #e8e4dc;
    border-radius: 12px;
    padding: 20px;
}

.br478-panel-title {
    font-size: 14px;
    font-weight: 600;
    color: #2d2a26;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.br478-panel-title i {
    color: #d4af37;
}

/* 프리셋 선택 */
.br478-preset-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.br478-preset-label {
    font-size: 12px;
    font-weight: 600;
    color: #5f5a56;
}

.br478-preset-btns {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.br478-preset-btn {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 500;
    color: #5f5a56;
    background: #faf9f7;
    border: 1px solid #e8e4dc;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    flex: 1;
    min-width: 80px;
    text-align: center;
}

.br478-preset-btn:hover {
    border-color: #d4af37;
    color: #d4af37;
}

.br478-preset-btn.active {
    background: #2d2a26;
    border-color: #2d2a26;
    color: #fff;
}

/* 커스텀 타이밍 */
.br478-timing-group {
    margin-bottom: 20px;
}

.br478-timing-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 10px;
}

.br478-timing-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.br478-timing-item label {
    font-size: 11px;
    font-weight: 600;
    color: #5f5a56;
    display: flex;
    align-items: center;
    gap: 4px;
}

.br478-timing-item label .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.br478-timing-item label .dot.inhale { background: #27ae60; }
.br478-timing-item label .dot.hold { background: #d4af37; }
.br478-timing-item label .dot.exhale { background: #3498db; }

.br478-timing-item input {
    padding: 8px 10px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid #e8e4dc;
    border-radius: 6px;
    background: #faf9f7;
    color: #2d2a26;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}

.br478-timing-item input:focus {
    outline: none;
    border-color: #d4af37;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* 옵션 토글 */
.br478-options-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.br478-option-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.br478-option-label {
    font-size: 13px;
    color: #2d2a26;
}

.br478-toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.br478-toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.br478-toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #e8e4dc;
    border-radius: 24px;
    transition: 0.3s;
}

.br478-toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: 0.3s;
}

.br478-toggle-switch input:checked + .br478-toggle-slider {
    background: #d4af37;
}

.br478-toggle-switch input:checked + .br478-toggle-slider::before {
    transform: translateX(20px);
}

/* 간단 설명 */
.br478-info-box {
    background: #faf9f7;
    border: 1px solid #e8e4dc;
    border-radius: 12px;
    padding: 16px;
}

.br478-info-title {
    font-size: 13px;
    font-weight: 600;
    color: #2d2a26;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.br478-info-title i {
    color: #d4af37;
}

.br478-info-text {
    font-size: 12px;
    color: #5f5a56;
    line-height: 1.6;
}

.br478-info-text strong {
    color: #2d2a26;
}

/* ========================================
   호흡 가이드 영역
   ======================================== */

/* 단계 표시 탭 */
.br478-phase-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.br478-phase-tab {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    color: #a09a94;
    background: #faf9f7;
    border: 1px solid #e8e4dc;
    border-radius: 20px;
    transition: all 0.3s;
}

.br478-phase-tab.active.inhale {
    background: rgba(39, 174, 96, 0.1);
    border-color: #27ae60;
    color: #27ae60;
}

.br478-phase-tab.active.hold {
    background: rgba(212, 175, 55, 0.1);
    border-color: #d4af37;
    color: #d4af37;
}

.br478-phase-tab.active.exhale {
    background: rgba(52, 152, 219, 0.1);
    border-color: #3498db;
    color: #3498db;
}

/* 펄싱 원형 애니메이션 */
.br478-visual-container {
    position: relative;
    width: 260px;
    height: 260px;
    margin-bottom: 24px;
}

.br478-visual-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: linear-gradient(135deg, #27ae60 0%, #219a52 100%);
    box-shadow: 0 8px 32px rgba(39, 174, 96, 0.3);
    transition: all 0.1s linear;
}

.br478-visual-circle.inhale {
    background: linear-gradient(135deg, #27ae60 0%, #219a52 100%);
    box-shadow: 0 8px 32px rgba(39, 174, 96, 0.3);
}

.br478-visual-circle.hold {
    background: linear-gradient(135deg, #d4af37 0%, #b8860b 100%);
    box-shadow: 0 8px 32px rgba(212, 175, 55, 0.3);
}

.br478-visual-circle.exhale {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    box-shadow: 0 8px 32px rgba(52, 152, 219, 0.3);
}

.br478-visual-circle.idle {
    background: linear-gradient(135deg, #e8e4dc 0%, #d5d0c8 100%);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* SVG 프로그레스 링 */
.br478-progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.br478-progress-bg {
    fill: none;
    stroke: #e8e4dc;
    stroke-width: 8;
}

.br478-progress-fill {
    fill: none;
    stroke: #27ae60;
    stroke-width: 8;
    stroke-linecap: round;
    transition: stroke 0.3s;
}

.br478-progress-fill.inhale { stroke: #27ae60; }
.br478-progress-fill.hold { stroke: #d4af37; }
.br478-progress-fill.exhale { stroke: #3498db; }

/* 중앙 텍스트 */
.br478-center-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.br478-countdown {
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    line-height: 1;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.br478-countdown.idle {
    color: #5f5a56;
    text-shadow: none;
}

.br478-phase-text {
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 6px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.br478-phase-text.idle {
    color: #a09a94;
    text-shadow: none;
}

/* 컨트롤 버튼 */
.br478-controls {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.br478-control-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 20px;
}

.br478-control-btn.start {
    background: linear-gradient(135deg, #27ae60 0%, #219a52 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.3);
}

.br478-control-btn.start:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(39, 174, 96, 0.4);
}

.br478-control-btn.pause {
    background: linear-gradient(135deg, #f39c12 0%, #d68910 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.br478-control-btn.pause:hover {
    transform: scale(1.05);
}

.br478-control-btn.reset {
    background: #faf9f7;
    border: 1px solid #e8e4dc;
    color: #5f5a56;
}

.br478-control-btn.reset:hover {
    border-color: #d4af37;
    color: #d4af37;
}

/* 사이클 카운터 */
.br478-cycle-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 100%;
    max-width: 300px;
}

.br478-cycle-label {
    font-size: 13px;
    color: #5f5a56;
}

.br478-cycle-label .count {
    font-weight: 600;
    color: #d4af37;
}

.br478-cycle-dots {
    display: flex;
    gap: 10px;
    align-items: center;
}

.br478-cycle-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #e8e4dc;
    transition: all 0.3s;
}

.br478-cycle-dot.completed {
    background: #27ae60;
}

.br478-cycle-dot.current {
    background: #d4af37;
    transform: scale(1.2);
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.5);
}

/* 총 시간 표시 */
.br478-total-time {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #e8e4dc;
    font-size: 13px;
    color: #5f5a56;
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    max-width: 300px;
    justify-content: center;
}

.br478-total-time i {
    color: #d4af37;
}

.br478-total-time .time {
    font-weight: 600;
    color: #2d2a26;
}

/* 대기 상태 안내 */
.br478-idle-hint {
    font-size: 13px;
    color: #a09a94;
    text-align: center;
    margin-top: 8px;
}

/* 주의사항 */
.br478-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    background: rgba(108, 117, 125, 0.08);
    border-radius: 8px;
    margin-top: 16px;
    width: 100%;
}

.br478-disclaimer i {
    color: #6c757d;
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}

.br478-disclaimer span {
    font-size: 12px;
    color: #5f5a56;
    line-height: 1.5;
}

/* ========================================
   반응형 - 태블릿
   ======================================== */

@media (max-width: 900px) {
    .br478-main-layout {
        grid-template-columns: 280px 1fr;
        gap: 20px;
    }

    .br478-guide-col {
        padding: 24px 20px;
    }

    .br478-visual-container {
        width: 220px;
        height: 220px;
    }

    .br478-visual-circle {
        width: 150px;
        height: 150px;
    }

    .br478-countdown {
        font-size: 40px;
    }
}

/* ========================================
   반응형 - 모바일
   ======================================== */

@media (max-width: 768px) {
    .br478-main-layout {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .br478-settings-col {
        position: static;
        order: 2;
    }

    .br478-guide-col {
        order: 1;
        padding: 24px 16px;
        min-height: auto;
    }

    .br478-visual-container {
        width: 200px;
        height: 200px;
    }

    .br478-visual-circle {
        width: 140px;
        height: 140px;
    }

    .br478-countdown {
        font-size: 36px;
    }

    .br478-phase-text {
        font-size: 13px;
    }

    .br478-control-btn {
        width: 50px;
        height: 50px;
        font-size: 18px;
    }

    .br478-timing-row {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }

    .br478-preset-btns {
        flex-wrap: wrap;
    }

    .br478-preset-btn {
        flex: 1 1 calc(50% - 4px);
        min-width: auto;
    }
}

/* ========================================
   반응형 - 작은 모바일
   ======================================== */

@media (max-width: 480px) {
    .br478-guide-col {
        padding: 20px 12px;
    }

    .br478-visual-container {
        width: 180px;
        height: 180px;
    }

    .br478-visual-circle {
        width: 120px;
        height: 120px;
    }

    .br478-countdown {
        font-size: 32px;
    }

    .br478-phase-tabs {
        flex-wrap: wrap;
        justify-content: center;
    }

    .br478-phase-tab {
        padding: 6px 12px;
        font-size: 12px;
    }

    .br478-control-btn {
        width: 46px;
        height: 46px;
        font-size: 16px;
    }

    .br478-cycle-dot {
        width: 12px;
        height: 12px;
    }

    .br478-settings-panel {
        padding: 16px;
    }

    .br478-timing-row {
        gap: 6px;
    }

    .br478-timing-item input {
        padding: 6px 8px;
        font-size: 13px;
    }
}

/* ========================================
   유틸리티
   ======================================== */

.br478-hidden {
    display: none !important;
}