/* ============================================================================
 * Project : MEDITORIAL (메디토리얼)
 * File    : common.css
 * Desc    : 기본 테마, 레이아웃, 네비게이션, 푸터, 알럿 공통 설정
 * ============================================================================ */

/* 1. 기본 테마 설정 */
:root {
    --primary: #00B7A5;
    --bg: #0b0b0b;
    --text: #ffffff;
    --text-dim: #999;
    --transition: 0.3s ease;
}

html {
    overflow-x: hidden;
}

[hidden] {
    display: none !important;
}

/* 키보드 이동 시에만 보이는 포커스 링 */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: 'Pretendard', sans-serif;
    margin: 0;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}

/* 2. 네비게이션 (PC/모바일 공통) */
nav {
    background: rgba(11, 11, 11, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.8rem 4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #222;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: var(--transition);
    cursor: pointer;
}

.logo-img:hover {
    opacity: 0.8;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    white-space: nowrap;
    cursor: pointer;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: 6px 0;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
}

.menu-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary);
    transition: var(--transition);
}

/* 로그인 상태 표시 (네비게이션 우측) */
.auth-status-nav {
    margin-left: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-login-btn {
    background: var(--primary);
    color: #000;
    border: none;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 800;
    cursor: pointer;
    transition: background-color 0.2s;
}
.nav-login-btn:hover { background: #33CC99; }

.nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.08);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid #444;
}
.nav-user-dot { font-size: 0.7rem; font-weight: bold; color: #999; }
.nav-user[data-role="tutorial_user"] .nav-user-dot { color: #00c2cb; }
.nav-user[data-role="surgery_user"]  .nav-user-dot { color: #b839bc; }
.nav-user[data-role="admin"]         .nav-user-dot { color: #ef0000; }
.nav-user-name { color: #eee; font-size: 0.85rem; font-weight: 600; }
.nav-user-sep { color: #555; margin: 0 4px; }
.nav-user-link {
    background: none;
    border: none;
    padding: 0;
    color: #999;
    font-size: 0.75rem;
    text-decoration: none;
    cursor: pointer;
}
.nav-user-link:hover { color: #ddd; }
.nav-user-admin { color: #4dabff; }

/* 3. 섹션 제어 */
.section {
    display: none;
    min-height: 70vh;
    padding: 60px 0;
}

.section.active {
    display: block !important;
    animation: fadeIn 0.6s ease-out;
}

.container {
    max-width: clamp(1200px, 90vw, 2000px);
    margin: 0 auto;
    padding: 0 40px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-title {
    text-align: center;
    color: var(--primary);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 60px;
}

/* 글로벌 폼 요소 기본 설정 (Contact & Auth Box에서 이동) */
input, textarea, select {
    width: 100%;
    box-sizing: border-box;
    padding: 14px;
    margin-bottom: 15px;
    background: #0b0b0b;
    border: 1px solid #333;
    border-radius: 10px;
    color: white;
    font-size: 1rem;
}

/* --- 고급 커스텀 얼럿창 스타일 --- */
.custom-alert-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s;
}

.custom-alert-overlay.show {
    opacity: 1;
    visibility: visible;
}

.custom-alert-box {
    background: rgba(25, 25, 25, 0.9);
    border: 1px solid rgba(0, 183, 165, 0.3);
    border-radius: 16px;
    padding: 35px 40px;
    max-width: 380px;
    width: 90%;
    text-align: center;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 183, 165, 0.1);
    transform: translateY(-20px) scale(0.95);
    transition: transform 0.3s ease;
}

.custom-alert-overlay.show .custom-alert-box {
    transform: translateY(0) scale(1);
}

.custom-alert-icon {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.custom-alert-icon i { color: var(--primary); }
.custom-alert-icon i[data-type="warning"] { color: #fbbd08; }

#custom-alert-message {
    color: white;
    font-size: 1.05rem;
    line-height: 1.5;
    margin-bottom: 30px;
    word-break: keep-all;
}

.btn-alert-confirm {
    background-color: var(--primary);
    color: #000;
    border: none;
    padding: 14px 30px;
    border-radius: 10px;
    font-size: 1.05rem;
    font-weight: 800;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.btn-alert-confirm:hover {
    background-color: #33CC99;
    box-shadow: 0 0 20px rgba(0, 183, 165, 0.4);
}

/* footer 기본 스타일 */
footer {
    text-align: center;
    padding: 32px 0 28px;
    color: #444;
    border-top: 1px solid #111;
    font-size: 0.85rem;
}

footer .sns-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 0 0 20px;
    border-top: none;
    margin-top: 0;
}

footer .sns-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s, filter 0.3s;
    cursor: pointer;
}

footer .sns-icon:hover {
    transform: scale(1.1);
}

footer .sns-icon img,
footer .sns-icon svg {
    width: auto;
    object-fit: contain;
    filter: grayscale(30%) opacity(0.65);
    transition: filter 0.3s;
}

footer .sns-icon img[alt="YouTube"] {
    height: 22px;
    width: 22px;
    object-fit: cover;
}

footer .sns-icon img[alt="Instagram"] {
    height: 22px;
}

footer .sns-icon:hover img,
footer .sns-icon:hover svg {
    filter: grayscale(0%) opacity(0.85);
}

/* 브라우저 자동완성 하얀색 배경 강제 제거 */
.input-group input:-webkit-autofill,
.input-group input:-webkit-autofill:hover,
.input-group input:-webkit-autofill:focus,
.input-group input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0px 1000px #1a1a1a inset !important;
    -webkit-text-fill-color: white !important;
    border: 1px solid #333 !important;
    caret-color: white !important;
    transition: background-color 5000s ease-in-out 0s !important;
}

/* 섹션별 강조 색상 */
#tutorial .section-title, #tutorial h2 { color: #33CC99; }
#surgery .section-title,  #surgery h2  { color: #007ACC; }

#tutorial.section,
#surgery.section {
    padding-top: 80px;
    padding-bottom: 120px;
}

/* 네비게이션 섹션별 활성 색상 */
#link-tutorial.active { color: #33CC99 !important; }

/* 언어 드롭다운 */
.lang-dropdown {
    position: relative;
}

.lang-toggle-btn {
    background: transparent;
    border: 1px solid #444;
    color: #aaa;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 5px;
    letter-spacing: 0.4px;
}

.lang-toggle-btn:hover {
    border-color: #666;
    color: #ccc;
}

.lang-chevron {
    color: currentColor;
    opacity: 0.5;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.lang-dropdown:has(.lang-menu.open) .lang-chevron {
    transform: rotate(180deg);
}

.lang-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: rgba(13, 13, 13, 0.98);
    border: 1px solid #2a2a2a;
    border-radius: 10px;
    overflow: hidden;
    min-width: 130px;
    z-index: 2000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    list-style: none;
    margin: 0;
    padding: 4px 0;
    animation: fadeIn 0.15s ease;
}

.lang-menu.open {
    display: block;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 9px;
    width: 100%;
    padding: 9px 14px;
    background: transparent;
    border: none;
    color: #888;
    font-size: 0.83rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    text-align: left;
    letter-spacing: 0.3px;
}

.lang-flag svg {
    display: block;
    border-radius: 2px;
    flex-shrink: 0;
}

.lang-option:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ddd;
}

.lang-option.active {
    color: var(--primary);
}

/* 플로팅 상담 버튼 — 한국어: 카카오톡 / 그 외 언어: WhatsApp */
#kakao-talk-channel-chat-button,
#whatsapp-float-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    text-decoration: none;
}
#whatsapp-float-btn { display: none; }
html:not([lang="ko"]) #kakao-talk-channel-chat-button { display: none; }
html:not([lang="ko"]) #whatsapp-float-btn { display: block; }

.kakao-btn,
.whatsapp-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    border-radius: 30px;
    font-weight: bold;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: 0.3s;
}
.kakao-btn { background: #fee500; color: #191919; }
.kakao-btn:hover { transform: scale(1.05); background: #fada00; }
.kakao-btn img { width: 25px; height: 25px; }
.whatsapp-btn { background: #25D366; color: #fff; }
.whatsapp-btn:hover { transform: scale(1.05); background: #20bd5a; }
.whatsapp-btn i { font-size: 1.3rem; }

@media (max-width: 768px) {
    #kakao-talk-channel-chat-button,
    #whatsapp-float-btn { bottom: 20px; right: 20px; }
    .kakao-btn span,
    .whatsapp-btn span { display: none; }
    .kakao-btn,
    .whatsapp-btn { padding: 12px; }
}

/* 7. 네비게이션 반응형 설정 */
@media (max-width: 1100px) {
    .nav-links { gap: 12px; }
    .nav-links a { font-size: 0.75rem; }
}

@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(11, 11, 11, 0.98);
        flex-direction: column;
        gap: 0;
        border-bottom: 1px solid #222;
        padding: 10px 0;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    }
    .nav-links.mobile-active {
        display: flex;
        animation: slideDown 0.3s ease-out;
    }
    .nav-links a {
        width: 100%;
        padding: 18px 0;
        text-align: center;
        border-bottom: 1px solid #1a1a1a;
    }
    .auth-status-nav { margin: 12px 0 4px; }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Japanese / Chinese: keep-all breaks CJK wrapping — override to normal */
html[lang="ja"] .service-card p,
html[lang="ja"] .story-text,
html[lang="ja"] .story-paragraph,
html[lang="ja"] .profile-content .bio,
html[lang="ja"] .banner-text p,
html[lang="zh"] .service-card p,
html[lang="zh"] .story-text,
html[lang="zh"] .story-paragraph,
html[lang="zh"] .profile-content .bio,
html[lang="zh"] .banner-text p {
    word-break: normal;
}