/**
 * SOT Experience Center — Responsive UI (전면)
 * PC · 태블릿 · 모바일 공통 안전장치 및 레이아웃
 */

/* ── 10. CSS 안전장치 ── */
html,
body {
    max-width: 100%;
    overflow-x: hidden;
}

img,
svg,
video,
canvas {
    max-width: 100%;
    height: auto;
}

.container,
.container-fluid,
.section,
.wrapper,
.site-main,
.site-header .container {
    max-width: 100%;
}

/* 테이블 가로 스크롤은 wrapper 내부만 */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}

.word-break {
    word-break: break-word;
    overflow-wrap: anywhere;
}

/* ── Promo bar ── */
@media (max-width: 768px) {
    .site-promo-bar span {
        display: none;
    }
    .site-promo-bar {
        font-size: .72rem;
        line-height: 1.4;
        padding: .4rem .65rem;
    }
}

/* ── 4. 모바일 네비게이션 ── */
.site-header {
    overflow: visible;
}

.nav-toggle {
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    z-index: 110;
}

.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .35);
    z-index: 98;
}

@media (max-width: 768px) {
    body.nav-open {
        overflow: hidden;
    }

    body.nav-open .nav-overlay {
        display: block;
    }

    .nav-toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        left: auto;
        width: min(320px, 88vw);
        height: 100vh;
        height: 100dvh;
        overflow-y: auto;
        background: #fff;
        border-left: 1px solid var(--sot-border);
        border-bottom: 0;
        padding: 4.5rem 1rem 2rem;
        z-index: 105;
        box-shadow: -8px 0 32px rgba(0, 0, 0, .12);
    }

    .site-nav.is-open {
        display: block;
    }

    .site-nav ul {
        flex-direction: column;
        gap: 0;
    }

    .site-nav > ul > li {
        border-bottom: 1px solid var(--sot-border);
    }

    .site-nav a {
        display: block;
        padding: .75rem .25rem;
        min-height: 44px;
        line-height: 1.4;
        font-size: .95rem;
    }

    .site-nav .has-dropdown .nav-parent::after {
        content: ' ▾';
        float: right;
        opacity: .5;
    }

    .site-nav .has-dropdown.is-expanded .nav-parent::after {
        content: ' ▴';
    }

    .site-nav .nav-dropdown {
        position: static;
        display: none;
        box-shadow: none;
        border: 0;
        padding: 0 0 .5rem .75rem;
        min-width: 0;
    }

    .site-nav .has-dropdown.is-expanded .nav-dropdown {
        display: block;
    }

    .site-nav .has-dropdown:hover .nav-dropdown {
        display: none;
    }

    .site-nav .has-dropdown.is-expanded:hover .nav-dropdown {
        display: block;
    }

    .brand-text {
        font-size: .9rem;
    }
}

/* ── 5. Hero ── */
@media (max-width: 768px) {
    .hero-landing--split .hero-copy {
        order: 1;
    }

    .hero-landing--split .col-lg-6:last-child {
        order: 2;
    }

    .hero-landing h1,
    .hero-landing--split h1 {
        font-size: clamp(1.45rem, 6vw, 2rem);
    }

    .hero-landing .hero-sub br {
        display: none;
    }

    .hero-product-showcase {
        flex-direction: column;
        align-items: stretch;
        gap: .75rem;
    }

    .hero-showcase-item {
        flex: 1 1 100%;
        max-width: 100%;
        min-width: 0;
    }

    .hero-showcase-plus {
        display: none;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn-sot {
        width: 100%;
        min-height: 44px;
        justify-content: center;
    }

    .hero-badge-row {
        gap: .35rem;
    }

    .hero-badge {
        font-size: .7rem;
    }
}

/* ── 6. 카드/그리드 ── */
@media (min-width: 769px) and (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .home-screens-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .bk-product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .feature-grid,
    .product-grid,
    .experience-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .gallery-grid,
    .connect-grid,
    .home-product-teaser,
    .bk-product-grid,
    .bk-info-grid,
    .bk-steps,
    .feature-grid,
    .product-grid,
    .experience-grid,
    .home-screens-grid,
    .case-kpi-grid,
    .metric-grid,
    .demo-highlight-cards {
        grid-template-columns: 1fr;
        gap: .85rem;
    }

    .home-case-preview .col-md-4 {
        width: 100%;
    }

    .footer-grid,
    .footer-contact-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .structure-node,
    .company-flow-node {
        min-width: 0;
        width: 100%;
        max-width: 100%;
    }

    .structure-arrow,
    .company-flow-arrow {
        transform: rotate(90deg);
    }

    .company-structure-diagram {
        flex-direction: column;
    }
}

/* ── 7. 폼 ── */
@media (max-width: 768px) {
    .form-panel {
        padding: 1.15rem;
        margin-left: .5rem;
        margin-right: .5rem;
    }

    .form-panel .form-control,
    .form-panel .form-select,
    .form-panel textarea,
    main .form-control,
    main .form-select,
    main textarea {
        width: 100%;
        max-width: 100%;
    }

    .form-panel .btn,
    .bk-wizard-wrap .btn,
    .sales-cta-actions .btn,
    .hero-actions .btn-sot {
        min-height: 44px;
    }

    .bk-wizard-progress {
        justify-content: flex-start;
        padding-bottom: .25rem;
    }

    .bk-summary-grid {
        grid-template-columns: 1fr !important;
    }

    .alert {
        word-break: break-word;
    }
}

/* ── 8. Admin tables ── */
@media (max-width: 768px) {
    main.container {
        padding-left: .75rem;
        padding-right: .75rem;
    }

    .card-body.p-0 {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        max-width: 100%;
    }

    .display-6 {
        font-size: calc(1.2rem + 1vw);
    }

    .card-body .table {
        font-size: .82rem;
    }

    .d-flex.flex-wrap.gap-2 .badge {
        font-size: .7rem;
    }
}

/* ── 9. Kiosk ── */
@media (max-width: 768px) {
    .kiosk-wrap {
        padding: .75rem;
        min-height: auto;
        align-items: flex-start;
    }

    .kiosk-device-frame {
        padding: 0;
        background: transparent;
        box-shadow: none;
        width: 100%;
        max-width: 100%;
    }

    .kiosk-device-frame::before {
        display: none;
    }

    .kiosk-screen,
    .kiosk-v2 {
        width: 100%;
        max-width: 100%;
        aspect-ratio: auto;
        max-height: none;
        min-height: 70vh;
        border-radius: 12px;
    }

    .kiosk-top {
        flex-wrap: wrap;
        gap: .5rem;
        padding: .85rem 1rem;
    }

    .kiosk-top h1 {
        font-size: 1rem;
    }

    .kiosk-key {
        min-height: 44px;
        padding: .75rem;
    }

    .kiosk-btn,
    .kiosk-btn-lg {
        min-height: 44px;
        min-width: 0;
        flex: 1 1 calc(50% - .5rem);
    }

    .kiosk-actions {
        flex-direction: column;
    }

    .kiosk-actions .kiosk-btn {
        width: 100%;
        flex: 1 1 100%;
    }
}

@media (max-width: 430px) {
    .kiosk-step-bar {
        flex-wrap: wrap;
        justify-content: center;
    }

    .kiosk-step {
        flex: 0 1 auto;
        min-width: 56px;
    }
}

/* ── Phase2 pipeline (admin) ── */
.pipeline-scroll {
    overflow-x: auto;
    max-width: 100%;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 991px) {
    .pipeline-board {
        grid-template-columns: repeat(5, minmax(180px, 1fr));
    }
}

/* ── Content hero ── */
@media (max-width: 768px) {
    .content-hero,
    .phase2-hero,
    .hero-exp {
        padding: 2rem 0;
    }

    .case-detail-cover {
        aspect-ratio: 16 / 9;
    }
}

/* ── 11. Final QA polish (DevTools 390–1440) ── */
@media (max-width: 768px) {
    .hero-landing--split .container {
        padding: 2rem 1rem 2.5rem;
    }

    .hero-landing h1,
    .hero-landing--split h1 {
        margin-bottom: .75rem;
    }

    .hero-cta {
        gap: .5rem;
    }

    .bk-section {
        padding: 2.5rem 0;
    }

    .bk-wizard-wrap {
        padding: 0 .15rem;
    }

    .bk-wizard-progress {
        flex-direction: column;
        align-items: stretch;
        gap: .35rem;
        overflow-x: visible;
        margin-bottom: 1.25rem;
    }

    .bk-wizard-progress .step {
        display: flex;
        align-items: center;
        gap: .65rem;
        text-align: left;
        min-width: 0;
        flex: none;
    }

    .bk-wizard-progress .step span {
        margin: 0;
        flex-shrink: 0;
    }

    .bk-wizard-panel {
        padding: 1.15rem;
    }

    .bk-wizard-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .bk-wizard-actions .btn {
        width: 100%;
        min-height: 44px;
    }

    .bk-product-pick label {
        flex-direction: column;
        align-items: flex-start;
        min-width: 0;
    }

    .form-check-label {
        word-break: break-word;
        overflow-wrap: anywhere;
    }

    .form-check-label a {
        word-break: break-all;
    }

    .kiosk-screen,
    .kiosk-v2 {
        min-height: min(85vh, 920px);
    }

    .kiosk-keypad {
        max-width: 100%;
    }

    .sales-cta-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .sales-cta-actions .btn {
        width: 100%;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .hero-showcase-item {
        max-width: 180px;
        flex: 1 1 40%;
    }

    .hero-product-showcase {
        gap: .75rem;
    }
}