/* 손해사정 ERP — 인트로 랜딩 */

:root {
    --intro-primary: #1a5fb4;
    --intro-primary-dark: #0f4c81;
    --intro-navy: #1e293b;
    --intro-muted: #64748b;
    --intro-border: rgba(15, 76, 129, 0.1);
    --intro-radius: 16px;
    --intro-shadow: 0 8px 32px rgba(15, 45, 90, 0.08);
}

.intro-page {
    font-family: "Pretendard", "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--intro-navy);
    line-height: 1.6;
    overflow-x: hidden;
}

.intro-page::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background: url("/static/images/erp-bg.png") center bottom / cover no-repeat;
    opacity: 0.35;
    pointer-events: none;
}

.intro-page::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    background: linear-gradient(
        180deg,
        rgba(255, 255, 255, 0.94) 0%,
        rgba(248, 251, 255, 0.9) 40%,
        rgba(240, 247, 255, 0.92) 100%
    );
    pointer-events: none;
}

/* Header */
.intro-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--intro-border);
}

.intro-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.intro-brand {
    text-decoration: none;
    color: inherit;
    flex-shrink: 0;
}

.intro-brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--intro-primary-dark);
    margin: 0;
}

.intro-brand-sub {
    font-size: 0.68rem;
    color: var(--intro-muted);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin: 0;
}

.intro-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-wrap: wrap;
    justify-content: center;
}

.intro-nav a {
    color: var(--intro-navy);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    transition: color 0.2s, background 0.2s;
}

.intro-nav a:hover {
    color: var(--intro-primary);
    background: rgba(26, 95, 180, 0.06);
}

.intro-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.intro-link-muted {
    font-size: 0.8rem;
    color: var(--intro-muted);
    text-decoration: none;
    padding: 0.35rem 0.6rem;
}

.intro-link-muted:hover {
    color: var(--intro-primary);
}

.intro-btn-login {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--intro-primary);
    border: 1px solid rgba(26, 95, 180, 0.35);
    padding: 0.4rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    transition: all 0.2s;
}

.intro-btn-login:hover {
    background: var(--intro-primary);
    color: #fff;
    border-color: var(--intro-primary);
}

.intro-menu-toggle {
    display: none;
    border: none;
    background: transparent;
    font-size: 1.4rem;
    color: var(--intro-navy);
    padding: 0.25rem;
}

/* Hero */
.intro-hero {
    max-width: 1260px;
    margin: 0 auto;
    padding: 3.5rem 1.5rem 4rem;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 3rem;
    align-items: center;
}

.intro-hero-copy .eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--intro-primary);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    padding: 0.35rem 0.85rem;
    background: rgba(26, 95, 180, 0.08);
    border-radius: 999px;
}

.intro-hero-copy h1 {
    font-size: clamp(1.9rem, 3.1vw, 2.55rem);
    font-weight: 800;
    line-height: 1.32;
    letter-spacing: -0.035em;
    color: #0f172a;
    margin-bottom: 1.15rem;
}

.intro-hero-copy .lead {
    font-size: 1.02rem;
    color: #475569;
    max-width: 36rem;
    line-height: 1.75;
    margin-bottom: 1.85rem;
}

.intro-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.intro-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #2b7de9 0%, #1a5fb4 55%, #0f4c81 100%);
    border: none;
    border-radius: 999px;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(26, 95, 180, 0.28);
    transition: transform 0.2s, box-shadow 0.2s;
}

.intro-btn-primary:hover {
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 22px rgba(26, 95, 180, 0.35);
}

.intro-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--intro-primary-dark);
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--intro-border);
    border-radius: 999px;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
}

.intro-btn-secondary:hover {
    background: #fff;
    border-color: rgba(26, 95, 180, 0.25);
    color: var(--intro-primary);
}

/* Product preview */
@keyframes previewFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

.intro-preview-wrap {
    position: relative;
    animation: previewFloat 6s ease-in-out infinite;
}

.intro-preview-card {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 0.75rem;
    border: 1px solid var(--intro-border);
    box-shadow: var(--intro-shadow), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    transform: perspective(1200px) rotateY(-3deg) rotateX(1.5deg);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.intro-preview-card:hover {
    transform: perspective(1200px) rotateY(-2deg) rotateX(1deg);
    box-shadow: 0 12px 40px rgba(15, 76, 129, 0.12), 0 0 0 1px var(--intro-border);
}

@media (min-width: 992px) {
    .intro-preview-card {
        width: min(680px, 44vw);
        max-width: 680px;
    }
}

.intro-browser-chrome {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 0.75rem 0.65rem;
    border-bottom: 1px solid #f1f5f9;
}

.intro-browser-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e2e8f0;
}

.intro-browser-dot:nth-child(1) { background: #fca5a5; }
.intro-browser-dot:nth-child(2) { background: #fcd34d; }
.intro-browser-dot:nth-child(3) { background: #86efac; }

.intro-browser-url {
    flex: 1;
    margin-left: 0.5rem;
    font-size: 0.7rem;
    color: #94a3b8;
    background: #f8fafc;
    border-radius: 6px;
    padding: 0.25rem 0.65rem;
    text-align: center;
}

.intro-preview-img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid #f1f5f9;
    object-fit: contain;
    object-position: top center;
}

/* Trust strip */
.intro-trust {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem 3rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.intro-trust-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.35rem;
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid var(--intro-border);
    border-radius: var(--intro-radius);
    backdrop-filter: blur(8px);
}

.intro-trust-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(26, 95, 180, 0.12), rgba(15, 76, 129, 0.06));
    border-radius: 12px;
    color: var(--intro-primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.intro-trust-item h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
}

.intro-trust-item p {
    font-size: 0.82rem;
    color: var(--intro-muted);
    margin: 0;
}

/* Sections */
.intro-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3.5rem 1.5rem;
}

.intro-section-about {
    padding-top: 2.5rem;
    padding-bottom: 3rem;
}

.intro-section-header--compact {
    margin-bottom: 2rem;
}

.intro-section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3rem;
}

/* 서비스 소개 핵심 카드 */
.intro-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.intro-pillar-card {
    padding: 1.5rem 1.35rem;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(15, 76, 129, 0.1);
    border-radius: var(--intro-radius);
    box-shadow: 0 2px 16px rgba(15, 45, 90, 0.05);
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.intro-pillar-card:hover {
    box-shadow: 0 8px 28px rgba(15, 76, 129, 0.08);
    transform: translateY(-2px);
}

.intro-pillar-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    border-radius: 12px;
    background: linear-gradient(145deg, #dbeafe 0%, #eff6ff 100%);
    color: var(--intro-primary);
    font-size: 1.2rem;
}

.intro-pillar-card h3 {
    font-size: 1.02rem;
    font-weight: 700;
    margin: 0 0 0.45rem;
    color: #0f172a;
}

.intro-pillar-card p {
    font-size: 0.875rem;
    color: var(--intro-muted);
    margin: 0;
    line-height: 1.6;
}

.intro-section-header h2 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.intro-section-header p {
    color: var(--intro-muted);
    margin: 0;
}

/* Feature grid */
.intro-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    align-items: stretch;
}

.intro-feature-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 1.55rem 1.45rem;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(15, 76, 129, 0.1);
    border-radius: var(--intro-radius);
    box-shadow: 0 2px 14px rgba(15, 45, 90, 0.045);
    transition: box-shadow 0.28s ease, transform 0.28s ease, border-color 0.28s ease;
}

.intro-feature-card:hover {
    border-color: rgba(26, 95, 180, 0.18);
    box-shadow: 0 12px 32px rgba(15, 76, 129, 0.09);
    transform: translateY(-3px);
}

.intro-feature-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, #bfdbfe 0%, #e0f2fe 55%, #f0f9ff 100%);
    border-radius: 14px;
    color: #1a5fb4;
    font-size: 1.35rem;
    margin-bottom: 1.1rem;
    flex-shrink: 0;
}

.intro-feature-card h3 {
    font-size: 1.02rem;
    font-weight: 800;
    margin-bottom: 0.55rem;
    color: #0f172a;
    letter-spacing: -0.02em;
}

.intro-feature-card p {
    font-size: 0.875rem;
    color: var(--intro-muted);
    margin: 0;
    line-height: 1.6;
    flex: 1;
}

.intro-feature-card .sub-list {
    margin-top: 0.75rem;
    margin-bottom: 0;
    padding-left: 0;
    list-style: none;
    font-size: 0.78rem;
    color: #64748b;
    line-height: 1.65;
}

.intro-feature-card .sub-list li {
    padding: 0.1rem 0;
}

.intro-feature-card .sub-list li::before {
    content: "· ";
    color: var(--intro-primary);
    font-weight: 700;
}

/* Benefits */
.intro-benefits {
    background: rgba(255, 255, 255, 0.6);
    border-top: 1px solid var(--intro-border);
    border-bottom: 1px solid var(--intro-border);
}

.intro-benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.intro-benefit-card {
    display: flex;
    align-items: flex-start;
    gap: 1.1rem;
    padding: 1.45rem 1.4rem;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(15, 76, 129, 0.1);
    border-radius: var(--intro-radius);
    box-shadow: 0 2px 14px rgba(15, 45, 90, 0.04);
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.intro-benefit-card:hover {
    box-shadow: 0 10px 28px rgba(15, 76, 129, 0.07);
    transform: translateY(-2px);
}

.intro-benefit-badge {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.5rem;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--intro-primary);
    background: linear-gradient(145deg, #dbeafe, #eff6ff);
    border: 1px solid rgba(26, 95, 180, 0.15);
    border-radius: 10px;
    letter-spacing: 0.02em;
}

.intro-benefit-body h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 0.4rem;
    color: #0f172a;
}

.intro-benefit-body p {
    font-size: 0.9rem;
    color: var(--intro-muted);
    margin: 0;
    line-height: 1.65;
}

/* CTA band */
.intro-cta-band {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

.intro-cta-premium {
    text-align: center;
    padding: 3rem 2rem;
    border-radius: 24px;
    background: linear-gradient(
        135deg,
        rgba(219, 234, 254, 0.65) 0%,
        rgba(239, 246, 255, 0.9) 45%,
        rgba(255, 255, 255, 0.95) 100%
    );
    border: 1px solid rgba(26, 95, 180, 0.14);
    box-shadow:
        0 4px 24px rgba(26, 95, 180, 0.08),
        0 0 0 1px rgba(255, 255, 255, 0.8) inset;
}

.intro-cta-premium h2 {
    font-size: clamp(1.4rem, 2.5vw, 1.85rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.85rem;
    color: #0f172a;
}

.intro-cta-premium p {
    color: #475569;
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.75rem;
    max-width: 36rem;
    margin-left: auto;
    margin-right: auto;
}

.intro-btn-primary--lg {
    padding: 0.95rem 2.1rem;
    font-size: 1.05rem;
}

/* Footer */
.intro-footer {
    border-top: 1px solid var(--intro-border);
    padding: 2rem 1.5rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--intro-muted);
    background: rgba(255, 255, 255, 0.5);
}

.intro-footer a {
    color: var(--intro-primary);
    text-decoration: none;
}

@media (min-width: 992px) {
    .intro-nav-wrap {
        display: flex;
    }
}

/* Responsive */
@media (max-width: 991px) {
    .intro-hero {
        grid-template-columns: 1fr;
        padding-top: 2rem;
    }

    .intro-preview-wrap {
        animation: none;
        max-width: 560px;
        margin: 0 auto;
        padding: 0 0.25rem;
    }

    .intro-preview-card {
        transform: none;
        max-width: 100%;
    }

    .intro-preview-card:hover {
        transform: none;
    }

    .intro-pillars {
        grid-template-columns: 1fr;
    }

    .intro-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .intro-nav-wrap {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid var(--intro-border);
        padding: 1rem;
        flex-direction: column;
    }

    .intro-nav-wrap.is-open {
        display: flex;
    }

    .intro-menu-toggle {
        display: block;
    }

    .intro-header-inner {
        position: relative;
        flex-wrap: wrap;
    }
}

@media (max-width: 576px) {
    .intro-features,
    .intro-trust,
    .intro-benefits-grid,
    .intro-pillars {
        grid-template-columns: 1fr;
    }

    .intro-cta-premium {
        padding: 2.25rem 1.25rem;
    }

    .intro-header-actions .intro-link-muted {
        display: none;
    }
}

/* 문의하기 모달 */
button.intro-link-muted.intro-contact-trigger {
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: inherit;
}

button.intro-btn-secondary.intro-contact-trigger {
    cursor: pointer;
}

.intro-footer-link {
    border: none;
    background: transparent;
    color: var(--intro-primary);
    font-size: inherit;
    padding: 0;
    cursor: pointer;
    text-decoration: none;
}

.intro-footer-link:hover {
    text-decoration: underline;
}

.intro-contact-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.intro-contact-modal.is-open {
    display: flex;
}

.intro-contact-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.52);
    backdrop-filter: blur(2px);
}

.intro-contact-dialog {
    position: relative;
    z-index: 1;
    width: min(520px, 100%);
    max-height: calc(100vh - 2.5rem);
    overflow-y: auto;
    background: #fff;
    border-radius: 22px;
    border: 1px solid rgba(30, 90, 180, 0.12);
    box-shadow: 0 24px 64px rgba(16, 64, 128, 0.22);
    padding: 1.75rem 1.75rem 1.5rem;
}

.intro-contact-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2.25rem;
    height: 2.25rem;
    border: none;
    border-radius: 50%;
    background: #f1f5f9;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.intro-contact-close:hover {
    background: #e2e8f0;
    color: #0f172a;
}

.intro-contact-header {
    padding-right: 2.5rem;
    margin-bottom: 1.25rem;
}

.intro-contact-header h2 {
    font-size: 1.35rem;
    font-weight: 800;
    margin: 0 0 0.5rem;
    color: #0f172a;
    letter-spacing: -0.02em;
}

.intro-contact-header p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--intro-muted);
    line-height: 1.6;
}

.intro-contact-card {
    background: linear-gradient(180deg, #f8fbff 0%, #fff 100%);
    border: 1px solid rgba(30, 90, 180, 0.1);
    border-radius: 16px;
    padding: 1.15rem 1.25rem;
    margin-bottom: 1.35rem;
}

.intro-contact-list {
    margin: 0;
}

.intro-contact-row {
    display: grid;
    grid-template-columns: 6.5rem 1fr;
    gap: 0.35rem 0.75rem;
    padding: 0.55rem 0;
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}

.intro-contact-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.intro-contact-row:first-child {
    padding-top: 0;
}

.intro-contact-row dt {
    font-size: 0.8rem;
    font-weight: 600;
    color: #64748b;
    margin: 0;
    display: flex;
    align-items: flex-start;
    gap: 0.35rem;
}

.intro-contact-row dt i {
    color: var(--intro-primary);
    margin-top: 0.1rem;
}

.intro-contact-row dd {
    margin: 0;
    font-size: 0.92rem;
    color: #0f172a;
    line-height: 1.55;
    word-break: keep-all;
}

.intro-contact-row dd a {
    color: var(--intro-primary);
    text-decoration: none;
    font-weight: 600;
}

.intro-contact-row dd a:hover {
    text-decoration: underline;
}

.intro-contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
}

.intro-contact-actions .intro-btn-primary,
.intro-contact-actions .intro-btn-secondary {
    font-size: 0.9rem;
    padding: 0.65rem 1.15rem;
}

.intro-contact-btn-close {
    border: 1px solid #e2e8f0;
    background: #fff;
    color: #64748b;
    border-radius: 999px;
    padding: 0.65rem 1.15rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.intro-contact-btn-close:hover {
    border-color: #cbd5e1;
    color: #334155;
}

body.intro-contact-open {
    overflow: hidden;
}

@media (max-width: 576px) {
    .intro-contact-dialog {
        padding: 1.35rem 1.2rem 1.2rem;
    }

    .intro-contact-row {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }

    .intro-contact-actions {
        flex-direction: column;
    }

    .intro-contact-actions .intro-btn-primary,
    .intro-contact-actions .intro-btn-secondary,
    .intro-contact-btn-close {
        width: 100%;
        justify-content: center;
    }
}