/* ==============================================
   index.css — 메인 페이지 전용 스타일
   about.css의 디자인 언어 동일 적용
   ============================================== */

/* ===== 공통 텍스트 링크 ===== */
.idx-text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    transition: gap 0.2s ease, color 0.2s ease;
}
.idx-text-link:hover { gap: 10px; color: var(--accent-light); }

/* ===== 공통 비교 링크 ===== */
.idx-compare-link {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.2s;
}
.idx-compare-link:hover { color: var(--accent); }


/* =============================================
   1. How it works — 스크린샷 카드
   ============================================= */
.idx-how {
    background: var(--primary);
    padding: 7rem 2rem;
}

.idx-how-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.idx-how-intro {
    text-align: center;
    margin-bottom: 4rem;
}

.idx-how-intro .section-heading { margin-top: 0.5rem; }

/* label·heading 화이트 variant */
.section-label--light {
    color: rgba(255,255,255,0.6);
    background: rgba(255,255,255,0.08);
}

.section-heading--light {
    color: #fff;
}

.idx-how-sub {
    margin-top: 0.8rem;
    font-size: 1.05rem;
    color: rgba(255,255,255,0.45);
}

/* 3열 카드 그리드 */
.idx-how-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.idx-how-card {
    border-radius: 20px;
    overflow: hidden;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    display: flex;
    flex-direction: column;
}

.idx-how-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 60px rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.16);
}

/* 스크린샷 영역 */
.idx-how-screen {
    background: #1e2535;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    overflow: hidden;
    /* 높이를 여기서 제어 */
    height: 240px;
    position: relative;
}

/* 가짜 브라우저 탑바 */
.idx-how-screen-bar {
    display: flex;
    gap: 6px;
    align-items: center;
    padding: 10px 14px;
    background: rgba(0,0,0,0.25);
}

.idx-how-screen-bar span {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    display: block;
}

.idx-how-screen-bar span:nth-child(1) { background: #ff5f57; }
.idx-how-screen-bar span:nth-child(2) { background: #febc2e; }
.idx-how-screen-bar span:nth-child(3) { background: #28c840; }

.idx-how-screen img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: top left;
    display: block;
    transform: scale(1);     
    transform-origin: top left;
    transition: transform 0.4s ease;
}


.idx-how-card:hover .idx-how-screen img {
    transform: scale(1.2);
}

/* 텍스트 영역 */
.idx-how-body {
    padding: 2rem 2rem 2.5rem;
    flex: 1;
}

.idx-how-step-num {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: rgba(255,255,255,0.3);
    margin-bottom: 0.7rem;
}

.idx-how-body h3 {
    font-size: 1.15rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.7rem;
    letter-spacing: -0.01em;
    line-height: 1.35;
}

.idx-how-body p {
    font-size: 0.9rem;
    line-height: 1.75;
    color: rgba(255,255,255,0.5);
    margin: 0;
}


/* =============================================
   2. 제품 섹션 — mv-card 스타일
   ============================================= */
.idx-products {
    padding: 8rem 2rem;
    background: var(--background-soft);
}

.idx-products-intro {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.idx-products-intro .section-heading { margin-top: 0.5rem; }

.idx-products-sub {
    margin-top: 0.8rem;
    font-size: 1.05rem;
    color: var(--text-light);
}

.idx-products-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

/* 카드 베이스 — mv-card 동일 패턴 */
.idx-pc {
    display: block;
    text-decoration: none;
    border-radius: 24px;
    padding: 3.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    color: inherit;
}

.idx-pc:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 60px rgba(0,0,0,0.15);
}

/* dark — mission 카드 */
.idx-pc--dark {
    background: var(--primary);
}

/* light — vision 카드 */
.idx-pc--light {
    background: var(--background);
    border: 2px solid var(--border);
}

/* eyebrow */
.idx-pc-eyebrow {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 1.8rem;
}

.idx-pc-tag {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
}

.idx-pc-tag::before {
    content: '';
    display: inline-block;
    width: 20px; height: 2px;
    background: currentColor;
    border-radius: 1px;
}

.idx-pc-tag--smart { color: var(--accent); }
.idx-pc-tag--smart::before { background: var(--accent); }

.idx-pc-subtag {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
}

.idx-pc-subtag--smart {
    background: rgba(15,76,117,0.08);
    color: var(--accent);
}

/* quote — mv-card-quote 동일 */
.idx-pc-quote {
    font-size: clamp(1.4rem, 2.2vw, 1.85rem);
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: -0.02em;
    margin-bottom: 1.2rem;
}

.idx-pc--dark .idx-pc-quote { color: #fff; }
.idx-pc--light .idx-pc-quote { color: var(--primary); }

/* sub */
.idx-pc-sub {
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.idx-pc--dark .idx-pc-sub { color: rgba(255,255,255,0.55); }
.idx-pc--light .idx-pc-sub { color: var(--text-light); }

/* list */
.idx-pc-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.idx-pc-list li {
    font-size: 0.88rem;
    padding-left: 1.1rem;
    position: relative;
    line-height: 1.5;
}

.idx-pc-list li::before {
    content: '·';
    position: absolute;
    left: 0;
    font-weight: 900;
    font-size: 1.1rem;
    line-height: 1.2;
}

.idx-pc--dark .idx-pc-list li { color: rgba(255,255,255,0.6); }
.idx-pc--dark .idx-pc-list li::before { color: rgba(255,255,255,0.3); }
.idx-pc--light .idx-pc-list li { color: var(--text); }
.idx-pc--light .idx-pc-list li::before { color: var(--accent); }

/* cta */
.idx-pc-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 800;
    color: rgba(255,255,255,0.8);
    transition: gap 0.2s;
}
.idx-pc-cta--smart { color: var(--accent); }
.idx-pc:hover .idx-pc-cta { gap: 10px; }

/* 배경 장식 텍스트 — mv-bg-num 동일 */
.idx-pc-bg {
    position: absolute;
    right: 2rem;
    bottom: -1rem;
    font-size: 10rem;
    font-weight: 900;
    line-height: 1;
    pointer-events: none;
    user-select: none;
    letter-spacing: -0.05em;
}

.idx-pc--dark .idx-pc-bg { color: rgba(255,255,255,0.04); }
.idx-pc--light .idx-pc-bg { color: rgba(15,76,117,0.05); }

.idx-products-compare {
    text-align: center;
    margin-top: 2.5rem;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}


/* =============================================
   3. Why ThinkOne — value-card 스타일
   ============================================= */
.idx-why {
    padding: 8rem 2rem;
    background: var(--background);
}

.idx-why-intro {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.idx-why-intro .section-heading { margin-top: 0.6rem; }

.idx-why-sub {
    margin-top: 1rem;
    font-size: 1.05rem;
    color: var(--text-light);
}

.idx-why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

/* value-card 동일 패턴 */
.idx-why-card {
    background: var(--background-soft);
    border-radius: 20px;
    padding: 2.8rem 2.5rem;
    border: 1.5px solid transparent;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    position: relative;
    overflow: hidden;
}

.idx-why-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.10);
    border-color: var(--card-accent, #0f4c75);
}

.idx-why-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--card-accent, #0f4c75);
    border-radius: 20px 20px 0 0;
}

.idx-why-card--1 { --card-accent: #0f4c75; }
.idx-why-card--2 { --card-accent: #3282b8; }
/* 4열 그리드 variant */
.idx-why-grid--4 {
    grid-template-columns: repeat(3, 1fr);
}

.idx-why-card--4 { --card-accent: #27ae60; }

.idx-why-num {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--card-accent);
    margin-bottom: 1.5rem;
}

.idx-why-card h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.idx-why-card p {
    font-size: 0.98rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* value-keyword 재사용 (about.css에 정의됨) */


/* =============================================
   4. CTA — about-cta 스타일 (index용 복사본)
   ============================================= */
.about-cta {
    padding: 7rem 2rem;
    background: linear-gradient(135deg, #1a1a2e 0%, #0f4c75 100%);
    text-align: center;
}

.about-cta .cta-eyebrow {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.45);
    margin-bottom: 1.2rem;
}

.about-cta h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 900;
    color: #fff;
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: 1.2rem;
}

.about-cta p {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.55);
    max-width: 520px;
    margin: 0 auto 2.5rem;
    line-height: 1.75;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 2rem;
    height: 52px;
    background: #fff;
    color: var(--primary);
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

.cta-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0 2rem;
    height: 52px;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.85);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    backdrop-filter: blur(6px);
    transition: background 0.2s, transform 0.2s;
}

.cta-btn-secondary:hover {
    background: rgba(255,255,255,0.18);
    transform: translateY(-3px);
}

/* =============================================
   반응형
   ============================================= */
@media (max-width: 900px) {
    .idx-how-cards { grid-template-columns: 1fr; }
    .idx-how-screen img { height: 200px; }
    .idx-products-grid { grid-template-columns: 1fr; }
    .idx-why-grid { grid-template-columns: 1fr; }
    .idx-why-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .idx-why-grid--4 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .idx-how,
    .idx-products,
    .idx-why { padding: 5rem 1.5rem; }
    .idx-how-body { padding: 1.5rem; }
    .idx-pc { padding: 2.5rem; }
    .idx-pc-bg { font-size: 6rem; }
}