/* =================================================================
   2. 페이지 스타일
   ================================================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

/* i18n 딕셔너리 적용 전 렌더링 숨김(FOL - Flash of Original Language 방지) */
html:not([data-i18n-ready]) body { visibility: hidden; }

body {
    font-family: var(--sp-font);
    background-color: var(--sp-bg);
    color: var(--sp-fg);
    line-height: 1.6;
    transition: none;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 헤더 & 네비게이션 */
.header {
    background-color: var(--sp-glass);
    border-bottom: 1px solid var(--sp-glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 16px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-select{
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid var(--sp-border);
    background-color: var(--sp-surface);
    color: var(--sp-fg);
    font-weight: 600;
    cursor: pointer;
}
.lang-select:hover{
    background-color: var(--sp-hover-bg);
    border-color: var(--sp-hover-border);
}

/* One UI style dropdown (for language switch) */
.dropdown{ position: relative; display: inline-block; width: 120px; }
.dropdown > .btn{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid var(--sp-border);
    background-color: var(--sp-surface);
    color: var(--sp-fg);
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    justify-content: space-between;
}
.dropdown > .btn:hover{ background-color: var(--sp-hover-bg); border-color: var(--sp-hover-border); }
.dropdown > .btn svg{ width: 16px; height: 16px; color: var(--sp-muted); }
.dropdown-menu{
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background-color: var(--sp-surface);
    width: 100%;
    min-width: 0;
    box-shadow: var(--sp-shadow);
    border: 1px solid var(--sp-border);
    border-radius: 12px;
    padding: 8px 0;
    z-index: 20;
    text-align: left; /* 드롭다운 항목 좌측 정렬 */
}
.dropdown-menu.show{ display: block; }
.dropdown-item{ color: var(--sp-fg); padding: 10px 12px; text-decoration: none; display: block; cursor: pointer; }
.dropdown-item:hover{ background-color: var(--sp-hover-bg); }

/* Footer 언어 드롭다운: 위로 열리도록 */
.footer .dropdown-menu{
    top: auto;
    bottom: calc(100% + 8px);
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--sp-fg);
    text-decoration: none;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 24px;
}

.nav-link {
    text-decoration: none;
    color: var(--sp-muted);
    font-weight: 500;
    padding: 8px 4px;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}
.nav-link:link,
.nav-link:visited {
    color: var(--sp-muted);
    text-decoration: none;
}
.nav-link:hover {
    color: var(--sp-fg);
}
.nav-link.active {
    color: var(--sp-accent);
    border-bottom-color: var(--sp-accent);
}


.icon-btn {
    background: none;
    border: 1px solid var(--sp-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sp-icon);
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
    padding: 0;
}

.icon-btn:hover {
    background-color: var(--sp-hover-bg);
    border-color: var(--sp-hover-border);
}

.theme-toggle {
    background: none;
    border: 1px solid var(--sp-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sp-icon);
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

.theme-toggle:hover {
    background-color: var(--sp-hover-bg);
    border-color: var(--sp-hover-border);
}

.theme-toggle svg, .icon-btn svg {
    width: 20px;
    height: 20px;
}

#sun-icon, #moon-icon { display: none; }
html[data-theme="light"] #sun-icon { display: block; }
html[data-theme="dark"] #moon-icon { display: block; }

/* 페이지 컨텐츠 (SPA) */
.page-content {
    display: none;
}
.page-content.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

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

/* 히어로 섹션 */
.hero {
    text-align: center;
    padding: 120px 0;
}

/* 홈 섹션은 한 화면을 채우고, 히어로+피쳐가 함께 보이도록 배치 */
#home { min-height: 100dvh; display: grid; grid-template-rows: auto 1fr; }
#home .features { padding-top: 24px; padding-bottom: 40px; }

@media (max-width: 1024px){
  .hero { padding: 96px 0; }
}
@media (max-width: 640px){
  .hero { padding: 56px 0; }
  #home .features { padding-top: 16px; padding-bottom: 32px; }
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

/* Hero animated headline (example.html 스타일 이식) */
.hero .hero-headline{ display: flex; justify-content: center; align-items: baseline; gap: 8px; }
@media (min-width: 768px){ .hero .hero-headline{ gap: 16px; } }
#dynamic-text-container{ transition: opacity .3s ease-in-out, transform .3s ease-in-out; display: inline-block; min-width: 8rem; text-align: right; }
@media (min-width: 768px){ #dynamic-text-container{ min-width: 12rem; } }

.hero .highlight {
    color: var(--sp-accent);
}

.hero p {
    font-size: 1.2rem;
    color: var(--sp-muted);
    max-width: 600px;
    margin: 0 auto 32px;
}

/* 버튼 */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--sp-accent);
    color: var(--sp-on-accent);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--sp-shadow);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--sp-shadow-pressed);
}

.btn-secondary {
    background-color: var(--sp-surface);
    color: var(--sp-fg);
    border: 1px solid var(--sp-border);
}
.btn-secondary:hover {
    background-color: var(--sp-hover-bg);
    border-color: var(--sp-hover-border);
    transform: translateY(-2px);
    box-shadow: var(--sp-shadow);
}
.btn-secondary:active {
    transform: translateY(0);
    box-shadow: var(--sp-shadow-pressed);
}

.btn-login {
    background-color: var(--toast-bg);
    color: var(--toast-fg);
    /* 헤더에 맞게 기본 버튼 패딩값 재정의 */
    padding: 8px 20px;
}
.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: var(--sp-shadow);
}
.btn-login:active {
    transform: translateY(0);
    box-shadow: var(--sp-shadow-pressed);
}


/* 피쳐 섹션 */
.features {
    padding: 80px 0;
    background-color: var(--sp-panel-bg);
    border-top: 1px solid var(--sp-border);
    border-bottom: 1px solid var(--sp-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-card {
    background-color: var(--sp-surface);
    padding: 32px;
    border: 1px solid var(--sp-border);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--sp-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card .icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 24px;
    color: var(--sp-accent);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--sp-fg);
}
.feature-card p {
    color: var(--sp-muted);
}

/* 토스트 메시지 예시 */
.toast-example {
    padding: 80px 0;
}
.toast {
    max-width: 350px;
    margin: 20px auto;
    background-color: var(--sp-toast-bg);
    color: var(--sp-toast-fg);
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    box-shadow: var(--sp-shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.toast-label {
    display: block;
    text-align: center;
    color: var(--sp-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}
.toast-btn {
    font-weight: 600;
    text-transform: uppercase;
    color: var(--sp-accent);
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

/* 다운로드 페이지 스타일 */
.download-section {
    padding: 100px 0;
    text-align: center;
    min-height: 100dvh; /* 첫 화면은 항상 1뷰포트 이상 */
}
.download-section h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}
.download-section p {
    font-size: 1.1rem;
    color: var(--sp-muted);
    max-width: 500px;
    margin: 0 auto 48px;
}
.download-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}
@media (min-width: 768px){
  .download-grid { grid-template-columns: repeat(2, 1fr); }
  .download-card.wide { grid-column: 1 / -1; }
}
.download-card {
    background-color: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.download-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sp-shadow);
}
.download-card .icon {
    width: 40px;
    height: 40px;
    color: var(--sp-fg);
}
.download-info {
    text-align: left;
    flex-grow: 1;
}
.download-info h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}
.download-info span {
    font-size: 0.9rem;
    color: var(--sp-muted);
}
.btn-download {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* 플랜 페이지 스타일 */
.plans-section {
    padding: 100px 0;
    text-align: center;
    min-height: 100dvh; /* 첫 화면은 항상 1뷰포트 이상 */
}
.plans-section h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}
.plans-section > p {
    font-size: 1.1rem;
    color: var(--sp-muted);
    max-width: 500px;
    margin: 0 auto 64px;
}
.plans-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
    align-items: center;
}
.plan-card {
    background-color: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: left;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
}
.plan-card:hover {
    /* transform: translateY(-5px); */ /* 호버 효과 제거 */
    box-shadow: var(--sp-shadow);
}
.plan-card.pro {
    border: 2px solid var(--sp-accent);
    /* transform: scale(1.05); */ /* 크기 확대 제거 */
}
 .plan-card.pro:hover {
    /* transform: scale(1.05) translateY(-5px); */ /* 호버 효과 제거 */
    box-shadow: var(--sp-shadow); /* 그림자 효과는 유지 */
}
.pro-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background-color: var(--sp-accent);
    color: var(--sp-on-accent);
    padding: 4px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}
.plan-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}
.plan-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}
.plan-card .price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--sp-muted);
    margin-left: 8px;
}
.plan-card > p {
    color: var(--sp-muted);
    margin-bottom: 24px;
    min-height: 3em;
}
.plan-features {
    list-style: none;
    margin-bottom: 32px;
}
.plan-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--sp-fg);
}
.plan-features li svg {
    width: 20px;
    height: 20px;
    color: var(--sp-success);
}
.plan-card .btn {
    width: 100%;
}


/* 푸터 */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--sp-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--sp-border);
}
.footer .container{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

/* =============================
   Docs layout (sidebar + content)
   ============================= */
.info-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 0;
    align-items: start;
    padding: 0;
}

.info-sidebar {
    position: sticky;
    top: 80px; /* header height + margin */
    height: calc(100dvh - 100px);
    overflow: auto;
    padding: 0 12px; /* 좌우 내부 여백 */
    border-right: 1px solid var(--sp-border);
}

/* .toc-search removed */

.toc {
    list-style: none;
    padding-left: 0;
}
.toc > li { margin-bottom: 12px; }
.toc .toc-sep{ list-style:none; height:1px; background: var(--sp-border); margin: 10px 0; padding: 0; }
.toc .toc-title{ list-style:none; color: var(--sp-muted); font-weight: 700; font-size: 1.5rem; padding: 6px 12px; user-select: none; cursor: default; }
.toc a {
    display: block;
    color: var(--sp-muted);
    text-decoration: none;
    padding: 12px 14px;
    border-left: 2px solid transparent;
    border-radius: 6px;
    opacity: .75;
    font-size: 1rem;
}
.toc a:hover { color: var(--sp-fg); background: var(--sp-hover-bg); opacity: 1; }
.toc a.active { color: var(--sp-fg); background: var(--sp-hover-bg); font-weight: 600; opacity: 1; border-left-color: transparent; }

.toc .sublist { list-style: none; padding-left: 12px; margin-top: 4px; display: none; }
.toc li.open > .sublist { display: block; }
.toc .sublist li { margin: 2px 0; }

/* Group labels (non-clickable headers) */
.toc .group-label{
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--sp-fg);
    padding: 12px 14px;
    margin: 12px 0 8px;
    cursor: pointer;
    user-select: none;
    font-size: 1rem;
    transition: background-color .15s ease, color .15s ease;
}
.toc .group-label:hover{ background: var(--sp-hover-bg); border-radius: 6px; }
.toc .group-label .group-chevron{
    width: 16px; height: 16px;
    margin-left: auto;
    transition: transform .18s ease;
    color: var(--sp-muted);
}
.toc .group-label:hover .group-chevron{ color: var(--sp-fg); }
.toc li.open > .group-label .group-chevron{ transform: rotate(90deg); color: var(--sp-fg); }
.toc .group-label.active{ color: var(--sp-fg); }

.info-content { min-width: 0; padding: 0 12px; }
.info-content .doc-section { margin-bottom: 48px; }
.info-content #ext-cgpt-mychatfold{ max-width: 800px; margin: 0 auto; }
.info-content #ext-cgpt-star{ max-width: 800px; margin: 0 auto; }
.info-content .doc-section h2 { font-size: 1.6rem; margin-bottom: 12px; }
.info-content .doc-section h3 { font-size: 1.15rem; margin: 12px 0 8px; }
.info-content .doc-card {
    background-color: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
}

/* Info page card (imported pattern from oneui) */
.info-content .card{
    background-color: var(--sp-surface);
    border: 1px solid var(--sp-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--sp-shadow);
    overflow: hidden;
}
.info-content .card-image{ width: 100%; height: 300px; background: var(--sp-panel-bg); display: flex; align-items: center; justify-content: center; }
.info-content .card-image img{ max-width: 100%; max-height: 100%; object-fit: contain; display: block; }
.info-content .card-image svg{ width: 48px; height: 48px; color: var(--sp-icon); }
.info-content .card-content{ padding: 16px; }
.info-content .card-content h3{ margin: 0 0 8px 0; font-size: 1.1rem; }
.info-content .card-content p{ margin: 0; color: var(--sp-muted); }

/* Card header: text left, toggle right */
.info-content .card-content-header{ display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.info-content .card-content-header .card-text{ flex: 1 1 auto; min-width: 0; }
.info-content .card-content-header .card-action{ display: flex; align-items: center; gap: 8px; }

/* Toggle switch (One UI style) for info cards */
.info-content .switch { position: relative; display: inline-block; width: 48px; height: 28px; }
.info-content .switch input { opacity: 0; width: 0; height: 0; }
.info-content .switch .slider { position: absolute; inset: 0; cursor: pointer; background-color: var(--sp-border); transition: .2s ease; border-radius: 999px; }
.info-content .switch .slider:before { content: ""; position: absolute; width: 20px; height: 20px; left: 4px; top: 4px; background-color: var(--sp-surface); border-radius: 50%; box-shadow: var(--sp-shadow); transition: .2s ease; }
.info-content .switch input:checked + .slider { background-color: var(--sp-accent); }
.info-content .switch input:checked + .slider:before { transform: translateX(20px); }
.info-content .switch-label{ color: var(--sp-muted); font-size: .95rem; }

@media (max-width: 1024px){
  .info-layout { grid-template-columns: 1fr; }
  .info-sidebar { position: static; height: auto; border-right: 0; padding-right: 0; }
}