/**
 * Tool Common Styles
 * 모든 툴 페이지에서 공통으로 사용하는 스타일
 *
 * @package Zipper
 */

/* ========================================
   워드프레스 자동 p 태그 숨김
   - 워드프레스 에디터가 HTML 주석을 <p>로 감싸는 문제 대응
   - 유휴 공간 발생 방지
   ======================================== */

.tool-section > p:empty,
.tool-section > p:only-child:empty,
.tool-description > p:empty {
    display: none;
    margin: 0;
    padding: 0;
}

/* ========================================
   Tool Section Base
   ======================================== */

.tool-section {
    background: var(--color-bg, #fff);
    border: 1px solid var(--color-border, #e8e4dc);
    border-radius: var(--radius-xl, 16px);
    padding: var(--spacing-lg, 24px);
    margin-bottom: var(--spacing-lg, 24px);
    box-shadow: 0 1px 3px rgba(45, 42, 38, 0.06), 0 1px 2px rgba(45, 42, 38, 0.04);
    transition: box-shadow 0.2s ease;
}

.tool-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text, #2d2a26);
    margin-bottom: var(--spacing-md, 16px);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm, 8px);
}

.tool-section-title i {
    color: var(--color-accent, #d4af37);
    font-size: 18px;
}

/* ========================================
   Tool Input Section
   ======================================== */

.tool-input-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tool-input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tool-input-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text, #2d2a26);
}

.tool-input-group label .required {
    color: var(--color-error, #dc3232);
}

.tool-input-group input,
.tool-input-group select,
.tool-input-group textarea {
    padding: 12px 16px;
    font-size: 15px;
    border: 1px solid var(--color-border, #e8e4dc);
    border-radius: var(--radius-md, 8px);
    background: var(--color-bg-secondary, #faf9f7);
    color: var(--color-text, #2d2a26);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.tool-section input:not([type="radio"]):not([type="checkbox"]):not([type="range"]),
.tool-section select,
.tool-section textarea {
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

/* due-date-calculator 모바일 date input 가드 (컨테이너 이탈 재발 방지) */
#dueDateCalculator .duedate-input-section,
#dueDateCalculator .duedate-input-group,
#dueDateCalculator .cycle-input-wrapper {
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

#dueDateCalculator .duedate-input {
    display: block;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
}

#dueDateCalculator .duedate-input[type="date"] {
    inline-size: 100%;
    min-inline-size: 0;
}

/* ivf-due-date-calculator 모바일 date input 가드 (minify 병합 환경 대응) */
#ivfDueDateCalculator .ivfdd-input-section,
#ivfDueDateCalculator .ivfdd-input-group,
#ivfDueDateCalculator .ivfdd-mode-panel {
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

#ivfDueDateCalculator .ivfdd-input {
    display: block;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    box-sizing: border-box !important;
}

#ivfDueDateCalculator .ivfdd-input[type="date"] {
    inline-size: 100%;
    min-inline-size: 0;
}

.tool-input-group input:focus,
.tool-input-group select:focus,
.tool-input-group textarea:focus {
    outline: none;
    border-color: var(--color-accent, #d4af37);
    box-shadow: 0 0 0 3px var(--color-accent-light, rgba(212, 175, 55, 0.1));
    background: var(--color-bg, #fff);
}

.tool-input-group input:focus-visible,
.tool-input-group select:focus-visible,
.tool-input-group textarea:focus-visible {
    outline: 2px solid var(--color-accent, #d4af37);
    outline-offset: -1px;
}

.tool-input-group input:hover,
.tool-input-group select:hover,
.tool-input-group textarea:hover {
    border-color: var(--color-accent, #d4af37);
}

.tool-input-group input::placeholder,
.tool-input-group textarea::placeholder {
    color: var(--color-text-muted, #5f5a56);
}

.tool-input-row {
    display: flex;
    gap: 16px;
}

.tool-input-row .tool-input-group {
    flex: 1;
}

/* ========================================
   Tool Result Section
   ======================================== */

.tool-result-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tool-result-box {
    background: var(--color-bg-secondary, #faf9f7);
    border: 1px solid var(--color-border, #e8e4dc);
    border-radius: var(--radius-lg, 12px);
    padding: 20px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(45, 42, 38, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tool-result-box:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 42, 38, 0.08);
}

.tool-result-box.highlight {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.12) 0%, rgba(184, 134, 11, 0.08) 100%);
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.12);
}

.tool-result-label {
    font-size: 13px;
    color: var(--color-text-muted, #5f5a56);
    margin-bottom: var(--spacing-sm, 8px);
}

.tool-result-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text, #2d2a26);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.tool-result-value.gold {
    color: var(--color-accent, #d4af37);
}

.tool-result-value .unit {
    font-size: 18px;
    font-weight: 500;
    color: var(--color-text-muted, #5f5a56);
    margin-left: 4px;
}

.tool-result-sub {
    font-size: 14px;
    color: var(--color-text-muted, #5f5a56);
    margin-top: var(--spacing-sm, 8px);
}

.tool-result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.tool-result-grid .tool-result-box {
    padding: 16px;
}

.tool-result-grid .tool-result-value {
    font-size: 24px;
}

/* ========================================
   Tool Actions (Buttons)
   ======================================== */

.tool-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.tool-actions.center {
    justify-content: center;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm, 8px);
    padding: 12px 24px;
    min-height: 44px; /* WCAG 2.5.5 touch target */
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md, 8px);
    cursor: pointer;
    transition: all 0.2s;
}

.tool-btn i {
    font-size: 16px;
}

.tool-btn:focus-visible {
    outline: 2px solid var(--color-accent, #d4af37);
    outline-offset: 2px;
}

.tool-btn-primary {
    color: #fff;
    background: var(--color-gold-gradient, linear-gradient(135deg, #d4af37 0%, #b8860b 100%));
    box-shadow: 0 2px 4px rgba(184, 134, 11, 0.25);
}

.tool-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.35);
}

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

.tool-btn-secondary {
    color: var(--color-text, #2d2a26);
    background: var(--color-bg, #fff);
    border: 1px solid var(--color-border, #e8e4dc);
}

.tool-btn-secondary:hover {
    border-color: var(--color-accent, #d4af37);
    color: var(--color-accent, #d4af37);
}

/* 엑셀 다운로드 버튼 표준(사이트 조화형 웜그린) */
.tool-btn-excel {
    color: #fff;
    background: linear-gradient(135deg, #59ab79 0%, #4b9a69 100%);
    border: 1px solid #448e62;
    box-shadow: 0 2px 6px rgba(72, 146, 103, 0.28);
}

.tool-btn-excel:hover {
    color: #fff;
    background: linear-gradient(135deg, #4f9f70 0%, #438f62 100%);
    border-color: #3d845a;
}

.tool-btn-copy,
.tool-btn-reset {
    padding: 10px 16px;
    min-height: 44px; /* WCAG 2.5.5 touch target */
    font-size: 14px;
}

.tool-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ========================================
   Tool Info/Description Sections
   ======================================== */

.tool-description {
    margin-top: var(--spacing-xl, 32px);
    background: var(--color-bg, #fff);
    border: 1px solid var(--color-border, #e8e4dc);
    border-radius: var(--radius-lg, 12px);
    padding: var(--spacing-lg, 24px);
    box-shadow: 0 1px 3px rgba(45, 42, 38, 0.06), 0 1px 2px rgba(45, 42, 38, 0.04);
}

.tool-description section {
    margin-bottom: 32px;
    scroll-margin-top: 80px; /* content-header 가림 방지 */
}

.tool-description h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text, #2d2a26);
    margin-bottom: var(--spacing-md, 16px);
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border, #e8e4dc);
}

.tool-description h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text, #2d2a26);
    margin: 20px 0 12px;
}

.tool-description p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary, #4a4640);
    margin-bottom: 12px;
}

.tool-description ul,
.tool-description ol {
    margin: 12px 0;
    padding-left: 24px;
}

.tool-description li {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary, #4a4640);
    margin-bottom: var(--spacing-sm, 8px);
}

.tool-description table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 16px 0;
    border: 1px solid var(--color-border, #e8e4dc);
    border-radius: 10px;
    overflow: hidden;
    font-size: 14px;
}

.tool-description thead th {
    background: linear-gradient(135deg, #fdf8ed 0%, #faf3e0 100%);
    color: var(--color-text, #2d2a26);
    font-weight: 600;
    padding: 12px 16px;
    text-align: left;
    border-bottom: 2px solid #e8dcc8;
    white-space: nowrap;
}

.tool-description tbody td {
    padding: 10px 16px;
    color: var(--color-text-secondary, #4a4640);
    border-bottom: 1px solid var(--color-border, #e8e4dc);
}

.tool-description tbody tr:last-child td {
    border-bottom: none;
}

.tool-description tbody tr:nth-child(even) {
    background: #faf9f7;
}

.tool-description tbody tr:hover {
    background: #f5f2ec;
}

@media (max-width: 768px) {
    .tool-description table {
        font-size: 13px;
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .tool-description thead th,
    .tool-description tbody td {
        padding: 8px 12px;
    }
}

/* ========================================
   FAQ Section (Schema.org FAQPage)
   ======================================== */

#faq {
    margin-top: 32px;
}

#faq h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text, #2d2a26);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border, #e8e4dc);
}

#faq [itemtype="https://schema.org/Question"] {
    background: var(--color-bg, #fff);
    border: 1px solid var(--color-border, #e8e4dc);
    border-radius: var(--radius-lg, 12px);
    margin-bottom: 12px;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(45, 42, 38, 0.04);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

#faq [itemtype="https://schema.org/Question"]:hover {
    box-shadow: 0 4px 12px rgba(45, 42, 38, 0.08);
    transform: translateY(-1px);
}

#faq [itemprop="name"] {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text, #2d2a26);
    padding: 16px 20px;
    margin: 0;
    background: var(--color-bg-secondary, #faf9f7);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
}

#faq [itemprop="name"]::before {
    content: "Q";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-gold-gradient, linear-gradient(135deg, #d4af37 0%, #b8860b 100%));
    color: #fff; /* Decorative badge on gold bg - keep white */
    font-size: 13px;
    font-weight: 700;
    border-radius: 6px;
    flex-shrink: 0;
}

#faq [itemprop="text"] {
    padding: 16px 20px 16px 56px;
}

#faq [itemprop="text"] p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-secondary, #4a4640);
    margin: 0;
}

/* ========================================
   Tool Tips/Notes
   ======================================== */

.tool-tip {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: rgba(212, 175, 55, 0.08);
    border-radius: 10px;
    margin-top: 16px;
}

.tool-tip i {
    color: var(--color-accent, #d4af37);
    font-size: 18px;
    flex-shrink: 0;
    margin-top: 2px;
}

.tool-tip p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary, #4a4640);
    margin: 0;
}

.tool-note {
    font-size: 13px;
    color: var(--color-text-muted, #5f5a56);
    margin-top: 8px;
}

/* ========================================
   Tool Toast Notification
   ======================================== */

.tool-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--color-text, #2d2a26);
    color: #fff; /* White text on dark bg: 14.28:1 contrast */
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-section, 10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10000; /* Toast notification: Above all tool UI elements, below modals */
}

.tool-toast.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.tool-toast i {
    font-size: 18px;
}

.tool-toast.success {
    background: var(--color-text, #2d2a26);
}

.tool-toast.success i {
    color: var(--color-success, #46b450);
}

.tool-toast.error {
    background: var(--color-text, #2d2a26);
}

.tool-toast.error i {
    color: var(--color-error, #dc3232);
}

.tool-toast.info i {
    color: var(--color-accent, #d4af37);
}

/* ========================================
   2-Column Split Layout
   계산기 타입 툴용 (입력 좌, 결과 우)
   ======================================== */

.tool-layout-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

.tool-layout-input,
.tool-input-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tool-layout-result,
.tool-result-panel {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ========================================
   Responsive
   ======================================== */

/* 태블릿: 2컬럼 → 1컬럼 전환 */
@media (max-width: 1024px) {
    .tool-layout-split {
        grid-template-columns: 1fr;
    }

    .tool-layout-result,
    .tool-result-panel {
        position: static;
    }
}

@media (max-width: 768px) {
    .tool-layout-input,
    .tool-input-panel,
    .tool-input-section,
    .tool-layout-result,
    .tool-result-panel {
        max-width: 100%;
        min-width: 0;
    }

    .tool-section input:not([type="radio"]):not([type="checkbox"]):not([type="range"]),
    .tool-section select,
    .tool-section textarea {
        max-width: 100% !important;
        min-width: 0 !important;
    }

    /* iOS Safari date picker 포커스 확대(zoom) 방지 */
    .tool-section input[type="date"],
    .tool-section input[type="datetime-local"],
    .tool-section input[type="month"] {
        display: block;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        inline-size: 100%;
        max-inline-size: 100%;
        min-inline-size: 0;
        box-sizing: border-box !important;
        font-size: 16px !important;
        line-height: 1.2;
    }

    #dueDateCalculator .duedate-input-section,
    #dueDateCalculator .duedate-input-group,
    #dueDateCalculator .cycle-input-wrapper {
        max-width: 100%;
        overflow-x: hidden;
    }

    #ivfDueDateCalculator .ivfdd-input-section,
    #ivfDueDateCalculator .ivfdd-input-group,
    #ivfDueDateCalculator .ivfdd-mode-panel {
        max-width: 100%;
        overflow-x: hidden;
    }

    .tool-section {
        padding: 20px 16px;
        overflow-x: hidden;
    }

    .tool-input-row {
        flex-direction: column;
    }

    .tool-result-value {
        font-size: 28px;
    }

    .tool-result-grid .tool-result-value {
        font-size: 20px;
    }

    .tool-actions {
        flex-direction: column;
    }

    .tool-btn {
        width: 100%;
    }

    .tool-description {
        padding: 20px 16px;
    }

    .tool-description h2 {
        font-size: 18px;
    }

    .tool-description p,
    .tool-description li,
    #faq [itemprop="text"] p {
        font-size: 14px;
    }

    #faq [itemprop="text"] {
        padding-left: 20px;
    }

    .tool-toast {
        left: 16px;
        right: 16px;
        transform: translateX(0) translateY(20px);
        bottom: 16px;
    }

    .tool-toast.is-visible {
        transform: translateX(0) translateY(0);
    }
}

/* 모바일: 작은 화면 최적화 */
@media (max-width: 480px) {
    .tool-section {
        padding: 16px 12px;
    }

    .tool-btn {
        padding: 10px 16px;
        font-size: 14px;
    }

    .tool-result-value {
        font-size: 24px;
    }

    .tool-result-grid .tool-result-value {
        font-size: 18px;
    }
}

/* ========================================
   Accessibility
   ======================================== */

html {
    color-scheme: light;
}

@media (prefers-reduced-motion: reduce) {
    .tool-btn,
    .tool-btn-primary,
    .tool-btn-secondary,
    .tool-toast,
    .tool-section,
    .tool-result-box,
    .tool-input-group input,
    .tool-input-group select,
    .tool-input-group textarea,
    #faq [itemtype="https://schema.org/Question"] {
        transition: none !important;
    }

    .tool-btn-primary:hover,
    .tool-result-box:hover,
    #faq [itemtype="https://schema.org/Question"]:hover {
        transform: none !important;
    }
}