/* =====================================================
   Site Base Styles - 신경근재활필라테스협회
   ===================================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    position: relative;
    min-height: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ── 타이포그래피 ── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.3;
    font-weight: 700;
}

.font-accent { font-family: var(--font-accent); }

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-smooth);
}

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

img { max-width: 100%; display: block; }

/* ── 섹션 공통 ── */
.section {
    padding: var(--section-padding-y) 0;
}

.section-dark {
    background-color: var(--color-bg-dark);
    color: var(--color-white);
}

.section-cream { background-color: #F5F5F5; }

.section-label {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: var(--fs-sm);
    color: var(--color-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.section-title {
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.25;
    margin-bottom: 1.25rem;
}

.section-dark .section-title { color: var(--color-white); }

.section-title .accent-word {
    color: var(--color-accent);
    font-family: var(--font-accent);
}

.section-desc {
    font-size: var(--fs-md);
    color: var(--color-text-light);
    max-width: 600px;
    line-height: 1.8;
}

.section-dark .section-desc { color: rgba(255,255,255,0.75); }

/* ── 버튼 ── */
.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background-color: var(--color-accent);
    color: #111111;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--fs-sm);
    letter-spacing: 0.05em;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-primary-custom:hover {
    background-color: var(--color-accent-dark);
    color: #111111;
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.btn-outline-custom {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background: transparent;
    color: var(--color-primary);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--fs-sm);
    letter-spacing: 0.05em;
    border: 1.5px solid var(--color-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-smooth);
}

.btn-outline-custom:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-outline-light {
    border-color: rgba(255,255,255,0.6);
    color: var(--color-white);
}

.btn-outline-light:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

/* ── 카드 공통 ── */
.nm-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid #e8e8e8;
    transition: all var(--duration-base) var(--ease-cinematic);
    position: relative;
    overflow: hidden;
}

.nm-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-base) var(--ease-cinematic);
}

.nm-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.12);
}

.nm-card:hover::after { transform: scaleX(1); }

/* ── Stat Box (About 섹션) ── */
.stat-box {
    background: #ffffff;
    border: 1px solid #e8e8e8;
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    text-align: center;
    transition: all var(--duration-base) var(--ease-cinematic);
}

.stat-box:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.stat-box-icon {
    font-size: 1.75rem;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
    line-height: 1;
}

.stat-box-value {
    font-family: var(--font-accent);
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 0.4rem;
}

.stat-box-value span {
    font-size: var(--fs-lg);
    font-weight: 500;
    color: var(--color-text-light);
}

.stat-box-label {
    font-size: var(--fs-sm);
    color: var(--color-text-light);
    font-weight: 500;
}

/* ── Notice Placeholder ── */
.notice-thumb-placeholder {
    height: 160px;
    background: #f0f0f0;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #c0c0c0;
}

.notice-placeholder {
    opacity: 0.55;
}

/* ── 유틸리티 ── */
.text-accent { color: var(--color-accent); }
.text-primary-custom { color: var(--color-primary); }
.text-secondary-custom { color: var(--color-secondary); }
.bg-primary-custom { background-color: var(--color-primary); }
.bg-accent { background-color: var(--color-accent); }

.reveal-up { opacity: 0; transform: translateY(60px); }
.reveal-left { opacity: 0; transform: translateX(-60px); }
.reveal-right { opacity: 0; transform: translateX(60px); }
.reveal-fade { opacity: 0; }

/* ── 스크롤바 ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-secondary); border-radius: 3px; }

/* ── 푸터 ── */
.site-footer {
    background-color: var(--color-bg-dark);
    color: rgba(255,255,255,0.75);
    padding: 4rem 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 3fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
    margin-bottom: 1rem;
}

.footer-logo:hover { opacity: 0.85; color: inherit; }

.footer-logo-ko {
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--color-white);
    font-family: var(--font-heading);
}

.footer-logo-en {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    font-family: var(--font-accent);
    color: var(--color-accent);
    text-transform: uppercase;
}

.footer-desc {
    font-size: var(--fs-sm);
    line-height: 1.8;
    color: rgba(255,255,255,0.55);
    margin-bottom: 1.25rem;
}

.footer-sns {
    display: flex;
    gap: 0.75rem;
}

.sns-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.6);
    transition: all var(--duration-fast) var(--ease-smooth);
}

.sns-link:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.footer-nav-title {
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.footer-nav-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-nav-col ul li a {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.55);
    transition: color var(--duration-fast) var(--ease-smooth);
}

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

.footer-contact {
    font-size: var(--fs-sm);
}

.footer-contact address {
    font-style: normal;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-contact address p {
    color: rgba(255,255,255,0.55);
    margin: 0;
}

.footer-contact address a {
    color: rgba(255,255,255,0.55);
    transition: color var(--duration-fast) var(--ease-smooth);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-copy {
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.3);
    margin: 0;
}

.footer-bottom-links a {
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.3);
    transition: color var(--duration-fast) var(--ease-smooth);
}

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

/* ── 반응형 ── */
@media (max-width: 1199px) {
    .footer-inner { grid-template-columns: 1fr 2fr; }
    .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 991px) {
    .section-title { font-size: var(--fs-2xl); }
    .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
    .footer-nav { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .section-title { font-size: var(--fs-xl); }
    .section-desc { font-size: var(--fs-base); }
    .footer-nav { grid-template-columns: repeat(2, 1fr); }
}