@charset "UTF-8";

/* ==========================================================================
   0. RESET & DESIGN TOKENS
   ========================================================================== */
:root {
    --bg-dark-primary: #030712;
    --bg-dark-secondary: #080f1e;
    --accent-blue: #2ebcf9;
    --accent-blue-rgb: 46, 188, 249;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.65);
    --text-muted: rgba(255, 255, 255, 0.4);
    --border-subtle: rgba(255, 255, 255, 0.08);
    --transition-fast: 0.25s ease;
    --transition-normal: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.company-page {
    background-color: var(--bg-dark-primary);
    color: var(--text-primary);
    font-family: 'Jost', 'Noto Sans KR', sans-serif;
    overflow-x: hidden;
}

.max-layout-width {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem;
    box-sizing: border-box;
}

.blue-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 15px;
}

/* ==========================================================================
   1. HERO BANNER ZONE
   ========================================================================== */
.about-hero {
    height: 60vh;
    min-height: 460px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000;
    padding-top: 80px;
    box-sizing: border-box;
}

.about-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

.hero-overlay-filter {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
    rgba(3, 7, 18, 0.4) 0%,
    rgba(3, 7, 18, 0.85) 80%,
    var(--bg-dark-primary) 100%
    );
    z-index: 2;
    pointer-events: none;
}

.hero-flex-wrap {
    width: 100%;
    display: flex;
    justify-content: center;
}

.about-hero-inner {
    position: relative;
    z-index: 3;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.eng-sub {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    color: var(--accent-blue);
    text-transform: uppercase;
    display: block;
    margin-bottom: 1.25rem;
    text-shadow: 0 0 15px rgba(46, 188, 249, 0.45);
}

.hero-main-title {
    font-size: clamp(3.2rem, 5vw, 4.8rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: 0.08em;
    margin-bottom: 2rem;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 0%, #a5e3ff 50%, #2ebcf9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.9))
    drop-shadow(0 0 20px rgba(46, 188, 249, 0.25))
    drop-shadow(0 0 50px rgba(46, 188, 249, 0.15));
}

.brand-logo-wrap {
    display: flex;
    justify-content: center;
    width: 100%;
}

.hero-center-logo {
    height: 2.2rem;
    width: auto;
    object-fit: contain;
    opacity: 0.85;
}

.reveal-element {
    opacity: 0;
    transform: translateY(40px) scale(0.97);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
    letter-spacing 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-hero-inner .reveal-element { letter-spacing: 0.18em; }
.reveal-element.active { opacity: 1; transform: translateY(0) scale(1); }
.about-hero-inner .reveal-element.active { letter-spacing: 0.08em; }
.about-hero-inner .eng-sub.reveal-element.active { letter-spacing: 0.25em; }

/* ==========================================================================
   2. CORE KEY MESSAGES
   ========================================================================== */
.core-message-section {
    padding: 80px 0 100px;
    background-color: var(--bg-dark-primary);
}

.section-header-center {
    text-align: center;
    margin-bottom: 50px;
}

.font-glow { text-shadow: 0 0 20px rgba(255, 255, 255, 0.1); }

.section-header-center .desc-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.core-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.cyber-core-card {
    position: relative;
    background: #080f1e;
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 50px 30px 40px 30px;
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
}

.cyber-core-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120px;
    background-image: radial-gradient(circle at 50% 0%, rgba(46, 188, 249, 0.45) 0%, transparent 70%);
    opacity: 0.4;
    z-index: 1;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.cyber-core-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
    opacity: 0.3;
    z-index: 2;
    transition: opacity var(--transition-fast);
}

.cyber-core-card:hover {
    transform: translateY(-10px);
    border-color: rgba(var(--accent-blue-rgb), 0.6);
    box-shadow: 0 20px 45px rgba(46, 188, 249, 0.25), 0 0 30px rgba(46, 188, 249, 0.15);
}

.cyber-core-card:hover::after { opacity: 0.7; }
.cyber-core-card:hover::before { opacity: 1; }

.card-inner {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.card-title-heavy {
    font-family: 'Jost', sans-serif;
    font-size: clamp(2.4rem, 3.2vw, 3.2rem);
    font-weight: 900;
    letter-spacing: 0.04em;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, #ffffff 0%, #b2ebff 50%, #2ebcf9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 8px rgba(46, 188, 249, 0.6))
    drop-shadow(0 0 20px rgba(46, 188, 249, 0.35));
}

.shine-effect::after {
    content: attr(data-text);
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.8) 50%, transparent 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shineLight 4s infinite linear;
    pointer-events: none;
}

@keyframes shineLight {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.card-sub-copy {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 18px;
}

.card-body-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 30px;
    word-break: keep-all;
}

.card-badge {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-blue);
    border: 1px solid rgba(46, 188, 249, 0.3);
    padding: 6px 20px;
    border-radius: 20px;
    background: rgba(46, 188, 249, 0.08);
}

/* ==========================================================================
   3. DAESUNG STORY & INNOVATION
   ========================================================================== */
.daesung-story-section {
    padding: 120px 0;
    background-color: var(--bg-dark-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    position: relative;
}

.eng-sub-tag {
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.22em;
    color: var(--accent-blue);
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
    text-shadow: 0 0 12px rgba(46, 188, 249, 0.4);
}

.story-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 50px;
    margin-top: 60px;
}

.story-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.story-circle-frame {
    position: relative;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid rgba(46, 188, 249, 0.6);
    box-shadow: 0 0 20px rgba(46, 188, 249, 0.35),
    inset 0 0 25px rgba(46, 188, 249, 0.25);
    margin-bottom: 30px;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.story-circle-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.55) contrast(1.1);
    transition: transform 0.5s ease, filter 0.5s ease;
}

.circle-overlay-info {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at center, rgba(3, 7, 18, 0.2) 0%, rgba(3, 7, 18, 0.75) 100%);
    padding: 20px;
    box-sizing: border-box;
}

.circle-val {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.val-label {
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.01em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
}

.glow-num-blue {
    font-family: 'Jost', sans-serif;
    font-size: clamp(2.2rem, 2.8vw, 3rem);
    font-weight: 900;
    color: var(--accent-blue);
    line-height: 1.1;
    display: block;
    text-shadow: 0 0 10px rgba(46, 188, 249, 0.8),
    0 0 25px rgba(46, 188, 249, 0.5),
    0 0 45px rgba(46, 188, 249, 0.3);
}

.story-card:hover .story-circle-frame {
    border-color: #ffffff;
    box-shadow: 0 0 35px rgba(46, 188, 249, 0.8),
    0 0 60px rgba(46, 188, 249, 0.4),
    inset 0 0 35px rgba(46, 188, 249, 0.5);
    transform: translateY(-8px) scale(1.03);
}

.story-card:hover .story-circle-frame img {
    filter: brightness(0.75) contrast(1.15);
    transform: scale(1.1);
}

.story-card:hover .glow-num-blue {
    color: #ffffff;
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.9),
    0 0 30px rgba(46, 188, 249, 0.9),
    0 0 60px rgba(46, 188, 249, 0.6);
}

.story-card-body h4.story-title-blue {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    text-shadow: 0 0 12px rgba(46, 188, 249, 0.35);
}

.story-card-body .sub-val {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.75);
    margin: 0;
    line-height: 1.5;
}

/* ==========================================================================
   4. HISTORY ACCORDION SECTION
   ========================================================================== */
.about-history {
    padding: 100px 0;
    background-color: var(--bg-dark-primary);
}

.history-accordion-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    width: 100%;
    box-sizing: border-box;
    align-items: start;
    margin-top: 40px;
}

.history-card {
    background: rgba(8, 15, 30, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.history-card .card-head {
    background: rgba(255, 255, 255, 0.02);
    padding: 20px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--border-subtle);
}

.history-card .card-head h3 {
    font-family: 'Jost', sans-serif;
    font-size: 2.2rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
    margin: 0;
}

.toggle-icon {
    position: relative;
    width: 16px;
    height: 16px;
}

.toggle-icon::before, .toggle-icon::after {
    content: '';
    position: absolute;
    background-color: var(--accent-blue);
    transition: transform var(--transition-fast);
}

.toggle-icon::before { top: 7px; left: 0; width: 100%; height: 2px; }
.toggle-icon::after { left: 7px; top: 0; width: 2px; height: 100%; }

.history-card .card-body {
    padding: 0 25px;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.45s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.3s ease;
}

.history-card.active {
    border-color: var(--accent-blue);
    box-shadow: 0 0 25px rgba(46, 188, 249, 0.2);
}

.history-card.active .card-head {
    background: rgba(46, 188, 249, 0.1);
}

.history-card.active .toggle-icon::after {
    transform: rotate(90deg);
}

.history-card.active .card-body {
    padding: 30px 25px;
    opacity: 1;
}

.history-card .card-body h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-blue);
    letter-spacing: 0.08em;
    margin-bottom: 15px;
}

.history-card .card-body ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.history-card .card-body li {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
    position: relative;
    word-break: keep-all;
}

.history-card .card-body li span {
    font-family: 'Jost', sans-serif;
    font-weight: 700;
    color: var(--accent-blue);
    margin-right: 8px;
}

.history-card .card-body .divider {
    height: 1px;
    background: var(--border-subtle);
    margin: 20px 0;
}

/* ==========================================================================
   5. DIGITAL COUNTER METRICS
   ========================================================================== */
.digital-metrics-section {
    padding: 100px 0;
    background-color: var(--bg-dark-secondary);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.metrics-grid-matrix {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.metric-card {
    background: rgba(3, 7, 18, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.metric-card:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 0 30px rgba(46, 188, 249, 0.2);
    transform: translateY(-5px);
}

.metric-head {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 15px;
}

.counter-wrap {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
    margin-bottom: 15px;
}

.counter-num {
    font-family: 'Jost', sans-serif;
    font-size: clamp(3.5rem, 5vw, 4.8rem);
    font-weight: 900;
    color: #ffffff;
    line-height: 1;
    background: linear-gradient(180deg, #ffffff 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 15px rgba(46, 188, 249, 0.3));
}

.counter-wrap .unit {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.metric-sub {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ==========================================================================
   6. BRAND VISION & INFRA
   ========================================================================== */
.brand-vision-section {
    padding: 100px 0 120px;
    background-color: var(--bg-dark-primary);
}

.vision-flex-wrap {
    display: flex;
    align-items: center;
    gap: 60px;
}

.vision-text-block {
    width: 50%;
    display: flex;
    flex-direction: column;
}

.location-tag {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 10px;
    letter-spacing: 0.05em;
}

.vision-lead-head {
    font-size: 2.2rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.35;
    margin-bottom: 25px;
    word-break: keep-all;
}

.blue-highlight { color: var(--accent-blue); }

.vision-paragraphs {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.vision-paragraphs p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
    word-break: keep-all;
}

.vision-visual-block {
    width: 50%;
}

.vision-img-frame {
    width: 100%;
    aspect-ratio: 16 / 11;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.vision-img-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==========================================================================
   7. RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1200px) {
    .about-hero { height: 50vh; padding-top: 70px; }
    .core-cards-grid, .story-cards-grid, .history-accordion-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .story-circle-frame {
        width: 260px;
        height: 260px;
    }
}

@media (max-width: 768px) {
    .about-hero { height: 40vh; padding-top: 60px; }
    .hero-main-title { font-size: 2.8rem; }
    .metrics-grid-matrix { grid-template-columns: 1fr; }
    .vision-flex-wrap { flex-direction: column; gap: 40px; }
    .vision-text-block, .vision-visual-block { width: 100%; }
}