/* ============================================
   마음결 · Kosungsuk — 높은 성숙한 마음
   Apple 디자인 원칙 + 따뜻한 브랜드 톤
   ============================================ */

/* --- 커스텀 속성 --- */
:root {
    --color-bg: #faf9f6;
    --color-bg-alt: #f3f1ec;
    --color-surface: #ffffff;
    --color-text-primary: #1d1d1f;
    --color-text-secondary: rgba(0, 0, 0, 0.56);
    --color-text-tertiary: rgba(0, 0, 0, 0.36);
    --color-accent: #2d6a4f;
    --color-accent-light: #d8f3dc;
    --color-border: rgba(0, 0, 0, 0.06);

    --font-family: "Pretendard Variable", "Pretendard", -apple-system,
        BlinkMacSystemFont, system-ui, "Segoe UI", sans-serif;
    --font-brand: "Cormorant Garamond", "Georgia", serif;
    --font-size-hero: clamp(1.75rem, 5vw, 2.5rem);
    --font-size-heading: clamp(1.25rem, 3vw, 1.75rem);
    --font-size-body: 1.0625rem;
    --font-size-caption: 0.875rem;
    --font-size-micro: 0.75rem;

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 32px;
    --space-xl: 64px;
    --space-2xl: 96px;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-pill: 980px;

    --shadow-subtle: 0 2px 20px rgba(0, 0, 0, 0.06);
}

/* --- 리셋 --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    line-height: 1.47;
    letter-spacing: -0.022em;
    color: var(--color-text-primary);
    background-color: var(--color-bg);
}

a { color: var(--color-accent); }

/* --- 내비게이션 --- */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 52px;
    background: rgba(250, 249, 246, 0.82);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-inner {
    max-width: 980px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
    text-decoration: none;
    color: var(--color-text-primary);
}

.nav-logo:hover { color: var(--color-accent); }

.nav-logo-en {
    font-family: var(--font-brand);
    font-size: 1.375rem;
    font-weight: 600;
    font-style: italic;
    letter-spacing: 0.01em;
}

.nav-logo-ko {
    font-size: var(--font-size-micro);
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--color-text-tertiary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-link:hover { color: var(--color-accent); }

.nav-icon { display: block; }

.nav-theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: 4px;
    display: flex;
    align-items: center;
    transition: color 0.2s ease;
}

.nav-theme-toggle:hover { color: var(--color-accent); }

/* --- 히어로 --- */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg);
    padding: var(--space-2xl) var(--space-md);
}

.hero-inner {
    max-width: 680px;
    text-align: center;
}

.hero-label {
    font-family: var(--font-brand);
    font-size: 1rem;
    font-weight: 300;
    font-style: italic;
    letter-spacing: 0.06em;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.hero-quote {
    margin: 0;
    padding: 0;
    border: none;
}

.hero-quote p {
    font-size: var(--font-size-hero);
    font-weight: 600;
    line-height: 1.14;
    letter-spacing: -0.028em;
    color: var(--color-text-primary);
    word-break: keep-all;
}

.hero-emotion {
    display: inline-block;
    margin-top: var(--space-lg);
    padding: 6px 18px;
    font-size: var(--font-size-micro);
    font-weight: 500;
    color: var(--color-accent);
    background: var(--color-accent-light);
    border-radius: var(--radius-pill);
    letter-spacing: 0.02em;
}

.hero--emotion { background-color: var(--color-bg); }

/* --- 소개 섹션 --- */
.intro {
    background-color: var(--color-bg-alt);
    padding: var(--space-2xl) var(--space-md);
}

.intro-inner {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.intro-heading {
    font-size: var(--font-size-heading);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.022em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
    word-break: keep-all;
}

.intro-body {
    font-size: var(--font-size-body);
    line-height: 1.65;
    color: var(--color-text-secondary);
    word-break: keep-all;
}

/* --- 감정 선택 --- */
.emotions {
    background-color: var(--color-bg-alt);
    padding: var(--space-2xl) var(--space-md);
}

.emotions--compact { padding: var(--space-xl) var(--space-md); }

.emotions-inner {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}

.emotions-heading {
    font-size: var(--font-size-heading);
    font-weight: 600;
    line-height: 1.14;
    letter-spacing: -0.022em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    word-break: keep-all;
}

.emotions-sub {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.emotion-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.emotion-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-md);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text-primary);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.emotion-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-subtle);
}

.emotion-card--active {
    background: var(--color-accent-light);
    box-shadow: none;
}

.emotion-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-bg-alt);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: -0.02em;
}

.emotion-card--active .emotion-icon {
    background: var(--color-accent);
    color: #ffffff;
}

.emotion-name {
    font-size: var(--font-size-caption);
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* --- 버튼 --- */
.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    font-family: var(--font-family);
    font-size: var(--font-size-caption);
    font-weight: 500;
    letter-spacing: -0.01em;
    text-decoration: none;
    border-radius: var(--radius-pill);
    transition: background 0.2s ease, color 0.2s ease;
    cursor: pointer;
}

.btn-icon { flex-shrink: 0; }

.btn--outline {
    color: var(--color-accent);
    background: transparent;
    border: 1px solid var(--color-accent);
}

.btn--outline:hover {
    background: var(--color-accent);
    color: #ffffff;
}

.btn--ghost {
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border);
}

.btn--ghost:hover {
    color: var(--color-text-primary);
    border-color: var(--color-text-secondary);
}

.btn--bookmarked {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}

/* --- 저장 페이지 --- */
.saved-section {
    padding: var(--space-2xl) var(--space-md);
    min-height: 70vh;
}

.saved-inner { max-width: 640px; margin: 0 auto; }

.saved-heading {
    font-size: var(--font-size-heading);
    font-weight: 600;
    line-height: 1.14;
    letter-spacing: -0.022em;
    margin-bottom: var(--space-sm);
}

.saved-sub {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.saved-empty { text-align: center; padding: var(--space-2xl) 0; }

.saved-empty-text {
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-lg);
}

.saved-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.saved-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    box-shadow: var(--shadow-subtle);
}

.saved-card-quote {
    font-size: 1.125rem;
    font-weight: 600;
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    word-break: keep-all;
    margin-bottom: var(--space-md);
}

.saved-card-emotion {
    display: inline-block;
    padding: 4px 12px;
    font-size: var(--font-size-micro);
    font-weight: 500;
    color: var(--color-accent);
    background: var(--color-accent-light);
    border-radius: var(--radius-pill);
    margin-bottom: var(--space-md);
}

.saved-card-actions { display: flex; gap: var(--space-sm); }

/* --- 정책/소개 페이지 --- */
.page-article {
    padding: var(--space-2xl) var(--space-md);
    min-height: 70vh;
}

.page-inner {
    max-width: 640px;
    margin: 0 auto;
}

.page-label {
    font-family: var(--font-brand);
    font-size: 1rem;
    font-weight: 300;
    font-style: italic;
    letter-spacing: 0.06em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.page-title {
    font-size: var(--font-size-heading);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.022em;
    margin-bottom: var(--space-xl);
    word-break: keep-all;
}

.page-section {
    margin-bottom: var(--space-xl);
}

.page-section h2 {
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.page-section p {
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.page-section a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.page-list {
    list-style: none;
    padding: 0;
}

.page-list li {
    padding: 8px 0 8px 20px;
    position: relative;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.page-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 16px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    opacity: 0.4;
}

.page-date {
    font-size: var(--font-size-micro);
    color: var(--color-text-tertiary);
    margin-top: var(--space-md);
}

/* --- 푸터 --- */
.footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: var(--space-2xl) var(--space-md) var(--space-xl);
}

.footer-inner {
    max-width: 980px;
    margin: 0 auto;
}

.footer-brand {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.footer-brand-en {
    font-family: var(--font-brand);
    font-size: 1.75rem;
    font-weight: 600;
    font-style: italic;
    letter-spacing: 0.01em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.footer-brand-ko {
    font-size: var(--font-size-caption);
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.06em;
    margin-bottom: var(--space-md);
}

.footer-brand-desc {
    font-size: var(--font-size-caption);
    line-height: 1.7;
    color: var(--color-text-tertiary);
    max-width: 400px;
    margin: 0 auto;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    text-align: center;
}

.footer-col-title {
    font-size: var(--font-size-micro);
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: var(--space-sm); }

.footer-col a {
    font-size: var(--font-size-caption);
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-col a:hover { color: var(--color-accent); }

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.footer-copyright {
    font-size: var(--font-size-micro);
    color: var(--color-text-tertiary);
    letter-spacing: -0.01em;
}

/* --- 반응형 --- */
@media (max-width: 640px) {
    .hero {
        min-height: 60vh;
        padding: var(--space-xl) var(--space-md);
    }

    .hero-quote p { font-size: 1.5rem; }
    .intro-heading { font-size: 1.125rem; }

    .emotion-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }

    .emotion-card { padding: var(--space-md) var(--space-sm); }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .nav-logo-ko { display: none; }
}

@media (min-width: 1024px) {
    .hero { min-height: 80vh; }

    .hero-quote p {
        font-size: 3rem;
        line-height: 1.1;
    }
}

/* --- 접근성 --- */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* --- 애니메이션 --- */
@media (prefers-reduced-motion: no-preference) {
    .hero-quote p {
        animation: fadeIn 1.2s ease-out;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   다크모드
   ============================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #1c1c1e;
        --color-bg-alt: #2c2c2e;
        --color-surface: #3a3a3c;
        --color-text-primary: #f5f5f7;
        --color-text-secondary: rgba(255, 255, 255, 0.60);
        --color-text-tertiary: rgba(255, 255, 255, 0.36);
        --color-accent: #52b788;
        --color-accent-light: rgba(82, 183, 136, 0.18);
        --color-border: rgba(255, 255, 255, 0.08);
        --shadow-subtle: 0 2px 20px rgba(0, 0, 0, 0.3);
    }

    .nav { background: rgba(28, 28, 30, 0.82); }
    .emotion-icon { background: var(--color-surface); }
    .btn--outline:hover { color: #1c1c1e; }
}

html[data-theme="dark"] {
    --color-bg: #1c1c1e;
    --color-bg-alt: #2c2c2e;
    --color-surface: #3a3a3c;
    --color-text-primary: #f5f5f7;
    --color-text-secondary: rgba(255, 255, 255, 0.60);
    --color-text-tertiary: rgba(255, 255, 255, 0.36);
    --color-accent: #52b788;
    --color-accent-light: rgba(82, 183, 136, 0.18);
    --color-border: rgba(255, 255, 255, 0.08);
    --shadow-subtle: 0 2px 20px rgba(0, 0, 0, 0.3);
}

html[data-theme="dark"] .nav { background: rgba(28, 28, 30, 0.82); }
html[data-theme="dark"] .emotion-icon { background: var(--color-surface); }
html[data-theme="dark"] .btn--outline:hover { color: #1c1c1e; }
html[data-theme="dark"] .btn--bookmarked {
    color: var(--color-accent);
    background: var(--color-accent-light);
    border-color: var(--color-accent);
}

/* --- 토스트 --- */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: 12px 28px;
    background: var(--color-text-primary);
    color: var(--color-bg);
    font-size: var(--font-size-caption);
    font-weight: 500;
    letter-spacing: -0.01em;
    border-radius: var(--radius-pill);
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 200;
    pointer-events: none;
}

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