@charset "utf-8";

/* =========================================================
   BlueWorks 지속가능경영(csr) — Physical AI 디자인 계승
   Light / Clean base · Multicolor gradient accent · Subtle motion
   Reuses --bw-* tokens & GSAP loaded globally (head.sub.php)
   ========================================================= */

.csr-page {
    /* 브랜드 블루 액센트 시스템 — 로고색 #1B86CA 기반, 채도·명도 조정 */
    --csr-brand:         #1B86CA;  /* 로고 원색 — 대형 디스플레이/장식 */
    --csr-accent:        #1B86CA;  /* 텍스트 강조·아이브로우 — 밝은 로고 블루로 통일 (about 밑줄색과 동일) */
    --csr-accent-strong: #0B6298;  /* 호버/딥 */
    --csr-grad: linear-gradient(135deg, #3FA9E2 0%, #1B86CA 50%, #0B5E94 100%);
    --csr-ink:    #0E2A4A;
    --csr-inner:  1240px;

    display: block;
    font-family: var(--font-pretendard);
    color: var(--csr-ink);
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

.csr-inner {
    max-width: var(--csr-inner);
    margin: 0 auto;
    padding: 0 24px;
    box-sizing: border-box;
}

/* 텍스트 강조는 단색 액센트 (한글 받침 클리핑 방지). 그라디언트는 비텍스트 장식에만. */
.csr-grad-text {
    color: var(--csr-accent);
    font-style: normal;
    font-weight: 700;
}

/* ============== HERO ============== */
.csr-hero {
    position: relative;
    padding: 170px 0 70px;
    background:
        radial-gradient(60% 120% at 85% -10%, rgba(27, 134, 202, 0.12), transparent 60%),
        radial-gradient(50% 120% at 10% 0%, rgba(63, 169, 226, 0.12), transparent 60%),
        var(--bw-gray-50, #F7F8FA);
    overflow: hidden;
}
.csr-hero__eyebrow {
    display: inline-block;
    font-family: var(--font-inter);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.18em;
    margin: 0 0 18px;
}
.csr-hero__title {
    font-family: var(--font-line);
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.02em;
    margin: 0 0 20px;
    color: var(--csr-ink);
}
.csr-hero__sub {
    font-size: clamp(16px, 2vw, 20px);
    line-height: 1.6;
    color: var(--bw-gray-500, #6B7280);
    margin: 0 0 32px;
    max-width: 640px;
    word-break: keep-all;
}
.csr-hero__line {
    width: 120px;
    height: 5px;
    border-radius: 3px;
    background: var(--csr-grad);
}

/* ============== SEGMENTED TABS (static — 헤더와 이중 고정 방지) ============== */
.csr-tabs {
    background: #fff;
    border-bottom: 1px solid var(--bw-gray-200, #E5E8EE);
}
.csr-tabs__inner {
    max-width: var(--csr-inner);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    gap: 8px;
}
.csr-tabs__btn {
    flex: 0 0 auto;
    padding: 12px 26px;
    border: 1px solid var(--bw-gray-200, #E5E8EE);
    border-radius: 999px;
    background: #fff;
    font-family: var(--font-pretendard);
    font-weight: 600;
    font-size: 16px;
    color: var(--bw-gray-500, #6B7280);
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, transform 0.18s ease;
    white-space: nowrap;
}
.csr-tabs__btn:hover { transform: translateY(-1px); color: var(--csr-ink); }
.csr-tabs__btn.is-active {
    color: #fff;
    border-color: transparent;
    background: var(--csr-grad);
    box-shadow: 0 6px 18px rgba(14, 42, 74, 0.18);
}
.csr-tabs__btn:focus-visible { outline: 2px solid var(--csr-accent); outline-offset: 2px; }

/* ============== PANELS ============== */
.csr-panel { display: none; }
.csr-panel.is-active { display: block; }

.csr-section { padding: 84px 0; }
.csr-section--tight { padding: 64px 0 0; }

/* ============== INTRO (headline + lead + banner) ============== */
.csr-intro__eyebrow {
    display: inline-block;
    font-family: var(--font-inter);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.16em;
    margin: 0 0 16px;
}
.csr-headline {
    font-family: var(--font-line);
    font-size: clamp(26px, 3.4vw, 40px);
    font-weight: 700;
    line-height: 1.32;
    letter-spacing: -0.01em;
    color: var(--csr-ink);
    margin: 0;
    word-break: keep-all;
}
.csr-lead {
    margin: 22px 0 0;
    font-size: 18px;
    line-height: 1.8;
    color: var(--bw-gray-700, #374151);
    max-width: 880px;
    word-break: keep-all;
}
.csr-lead + .csr-lead { margin-top: 16px; }
.csr-lead strong { font-weight: 600; color: var(--csr-ink); }

.csr-banner {
    margin-top: 44px;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: var(--bw-shadow-md, 0 8px 24px rgba(14, 42, 74, 0.10));
}
.csr-banner img {
    display: block;
    width: 100%;
    max-height: 460px;
    object-fit: cover;
}

/* ============== BLOCK HEAD ============== */
.csr-block { margin-top: 72px; }
.csr-block:first-child { margin-top: 0; }
.csr-block__eyebrow {
    display: block;
    font-family: var(--font-inter);
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.14em;
    color: var(--csr-accent);
    margin: 0 0 10px;
}
.csr-block__title {
    font-family: var(--font-line);
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--csr-ink);
    margin: 0;
}
.csr-block__title::after {
    content: '';
    display: block;
    width: 56px;
    height: 4px;
    margin-top: 16px;
    border-radius: 2px;
    background: var(--csr-grad);
}

/* ============== VALUE CARDS (원칙 / 윤리 원칙) ============== */
.csr-cards {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.csr-card {
    position: relative;
    padding: 36px 34px;
    background: var(--bw-gray-50, #F7F8FA);
    border: 1px solid var(--bw-gray-200, #E5E8EE);
    border-radius: var(--bw-radius, 14px);
    overflow: hidden;
    transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}
.csr-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 100%; height: 4px;
    background: var(--csr-grad);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.csr-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--bw-shadow-md, 0 8px 24px rgba(14, 42, 74, 0.10));
    background: #fff;
}
.csr-card:hover::before { transform: scaleX(1); }
.csr-card__num {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--csr-accent);
}
.csr-card__title {
    margin: 12px 0 0;
    font-family: var(--font-pretendard);
    font-weight: 700;
    font-size: 23px;
    line-height: 1.3;
    color: var(--csr-ink);
    word-break: keep-all;
}
.csr-card__desc {
    margin: 14px 0 0;
    font-size: 17px;
    line-height: 1.6;
    color: var(--bw-gray-700, #374151);
    word-break: keep-all;
}
.csr-card__point {
    margin: 18px 0 0;
    padding: 12px 16px;
    background: #fff;
    border-left: 3px solid var(--csr-brand);
    border-radius: 4px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--bw-gray-700, #374151);
    word-break: keep-all;
}

/* ============== PRACTICE CARDS (가족친화 실천 A~D) ============== */
.csr-practice {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.csr-practice__card {
    padding: 30px 26px;
    background: #fff;
    border: 1px solid var(--bw-gray-200, #E5E8EE);
    border-radius: var(--bw-radius, 14px);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.csr-practice__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--bw-shadow-sm, 0 2px 8px rgba(14, 42, 74, 0.06));
}
.csr-practice__cat {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--bw-gray-200, #E5E8EE);
    font-family: var(--font-pretendard);
    font-weight: 700;
    font-size: 19px;
    color: var(--csr-ink);
    word-break: keep-all;
}
.csr-practice__cat span {
    font-family: var(--font-inter);
    font-size: 14px;
    font-weight: 700;
    color: var(--csr-accent);
}
.csr-practice__card ul { margin-top: 16px; }
.csr-practice__card li {
    position: relative;
    padding-left: 16px;
    margin-top: 11px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--bw-gray-700, #374151);
    word-break: keep-all;
}
.csr-practice__card li::before {
    content: '';
    position: absolute;
    left: 0; top: 9px;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--csr-brand);
}

/* ============== FIGURE (실천의 다짐 등 전체폭 그래픽) ============== */
.csr-figure {
    margin-top: 60px;
    text-align: center;
}
.csr-figure img {
    display: inline-block;
    width: 100%;
    max-width: 1000px;
    border: 1px solid var(--bw-gray-200, #E5E8EE);
    border-radius: 18px;
    box-shadow: var(--bw-shadow-sm, 0 2px 8px rgba(14, 42, 74, 0.06));
}

/* ============== STATS (counters) ============== */
.csr-stats {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.csr-stats--3 {
    grid-template-columns: repeat(3, 1fr);
    max-width: 880px;
    margin-left: auto;
    margin-right: auto;
}
.csr-stat {
    padding: 36px 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bw-gray-50, #F7F8FA);
    border: 1px solid var(--bw-gray-200, #E5E8EE);
    border-radius: var(--bw-radius, 14px);
}
.csr-stat__num {
    display: block;
    font-family: var(--font-line);
    font-size: clamp(34px, 4.4vw, 52px);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
    color: var(--csr-accent);
    margin-bottom: 12px;
}
.csr-stat__label {
    display: block;
    font-size: 14px;
    color: var(--bw-gray-500, #6B7280);
    letter-spacing: 0.01em;
    word-break: keep-all;
}

/* ============== FILTER CHIP GALLERY (사회공헌 15) ============== */
.csr-filter {
    margin-top: 40px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.csr-chip {
    padding: 10px 20px;
    border: 1px solid var(--bw-gray-200, #E5E8EE);
    border-radius: 999px;
    background: #fff;
    font-family: var(--font-pretendard);
    font-weight: 600;
    font-size: 15px;
    color: var(--bw-gray-500, #6B7280);
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.csr-chip:hover { color: var(--csr-ink); border-color: var(--bw-gray-500, #6B7280); }
.csr-chip.is-active {
    color: #fff;
    border-color: transparent;
    background: var(--csr-grad);
}
.csr-chip:focus-visible { outline: 2px solid var(--csr-accent); outline-offset: 2px; }

.csr-grid {
    margin-top: 28px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}
.csr-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--bw-gray-200, #E5E8EE);
    background: #000;
    aspect-ratio: 4 / 3;
}
.csr-item__img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease, opacity 0.3s ease;
}
.csr-item__cat {
    position: absolute;
    left: 14px; top: 14px;
    z-index: 2;
    padding: 6px 12px;
    border-radius: 999px;
    font-family: var(--font-pretendard);
    font-weight: 600;
    font-size: 12px;
    color: #fff;
    background: rgba(14, 42, 74, 0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.csr-item__overlay {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    z-index: 2;
    padding: 22px 20px;
    background: linear-gradient(180deg, transparent 0%, rgba(10, 26, 47, 0.88) 70%);
    transform: translateY(28px);
    opacity: 0.85;
    transition: transform 0.32s ease, opacity 0.32s ease;
}
.csr-item__title {
    font-family: var(--font-pretendard);
    font-weight: 700;
    font-size: 18px;
    line-height: 1.3;
    color: #fff;
    word-break: keep-all;
}
.csr-item__desc {
    margin-top: 8px;
    font-size: 14px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.85);
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.32s ease, opacity 0.32s ease, margin 0.32s ease;
    word-break: keep-all;
}
.csr-item::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(180deg, rgba(27,134,202,0) 45%, rgba(27,134,202,0.22) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.csr-item:hover::after { opacity: 1; }
.csr-item:hover .csr-item__img { transform: scale(1.06); }
.csr-item:hover .csr-item__overlay { transform: translateY(0); opacity: 1; }
.csr-item:hover .csr-item__desc { max-height: 120px; opacity: 1; margin-top: 8px; }
.csr-item.is-hidden { display: none; }

/* ============== CTA BAND ============== */
.csr-cta {
    margin-top: 0;
    padding: 0 24px;
}
.csr-cta__box {
    max-width: var(--csr-inner);
    margin: 0 auto;
    padding: 8px 48px 96px; /* 위: 섹션 패딩과 누적 완화 / 아래: footer와 간격 확보 */
    text-align: center;
    background: none;
    color: var(--csr-ink);
}
.csr-cta__eyebrow {
    display: inline-block;
    font-family: var(--font-line);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.22em;
    color: var(--csr-accent);
    margin: 0 0 18px;
}
.csr-cta__title {
    font-family: var(--font-line);
    font-size: clamp(24px, 3.2vw, 38px);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--csr-ink);
    margin: 0 0 16px;
    word-break: keep-all;
}
.csr-cta__sub {
    font-size: 17px;
    line-height: 1.7;
    color: var(--bw-gray-700, #374151);
    max-width: none; /* 데스크탑: 한 줄로 (모바일은 화면 폭에 맞춰 자동 줄바꿈) */
    margin: 0 auto;
    word-break: keep-all;
}
.csr-cta__line {
    display: block;
    width: 64px;
    height: 4px;
    margin: 32px auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, #3FA9E2 0%, #1B86CA 100%);
}

/* ============== RESPONSIVE ============== */
@media screen and (max-width: 1024px){
    .csr-cards { grid-template-columns: repeat(2, 1fr); }
    .csr-practice { grid-template-columns: repeat(2, 1fr); }
    .csr-stats { grid-template-columns: repeat(2, 1fr); }
    .csr-stats--3 { grid-template-columns: repeat(3, 1fr); }
    .csr-grid { grid-template-columns: repeat(2, 1fr); }
}

@media screen and (max-width: 768px){
    .csr-hero { padding: 140px 0 56px; }
    .csr-section { padding: 60px 0; }
    .csr-tabs__inner { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .csr-tabs__btn { padding: 10px 20px; font-size: 15px; }
    .csr-card { padding: 28px 24px; }
    .csr-card__title { font-size: 20px; }
    .csr-lead { font-size: 16px; }
    .csr-cta__box { padding: 8px 24px 72px; }
}

@media screen and (max-width: 640px){
    .csr-cards { grid-template-columns: 1fr; }
    .csr-practice { grid-template-columns: 1fr; }
    .csr-stats { grid-template-columns: 1fr; }
    .csr-grid { grid-template-columns: 1fr; }
    .csr-item { aspect-ratio: 16 / 10; }
    .csr-item__desc { max-height: 120px; opacity: 1; margin-top: 8px; }
    .csr-item__overlay { transform: translateY(0); opacity: 1; }
}