/* ==========================================================================
   Bridge Flow - Home Page Stylesheet
   ========================================================================== */

/* --- Hero Section --- */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 720px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 40%, var(--color-blue) 100%);
    color: var(--color-white);
    display: flex;
    align-items: center;
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 40%, rgba(30, 90, 168, 0.5), transparent 60%),
        radial-gradient(ellipse at 80% 60%, rgba(212, 168, 87, 0.2), transparent 60%),
        linear-gradient(180deg, rgba(5, 18, 42, 0.3) 0%, rgba(5, 18, 42, 0.7) 100%);
    z-index: 2;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    font-family: var(--font-en);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.4em;
    color: var(--color-gold);
    margin-bottom: 32px;
    text-transform: uppercase;
    opacity: 0;
    animation: heroFadeUp 1s var(--ease-out) 0.3s forwards;
}

.hero-label::before {
    content: '';
    width: 48px;
    height: 1px;
    background: var(--color-gold);
}

.hero-title {
    font-size: clamp(40px, 7vw, 88px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0.02em;
    margin-bottom: 40px;
    max-width: 900px;
}

.hero-title span {
    display: block;
    opacity: 0;
    transform: translateY(60px);
    animation: heroFadeUp 1.2s var(--ease-out) forwards;
}

.hero-title span:nth-child(1) { animation-delay: 0.5s; }
.hero-title span:nth-child(2) { animation-delay: 0.7s; }
.hero-title span:nth-child(3) { animation-delay: 0.9s; }

.hero-title .accent {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    color: var(--color-gold);
}

.hero-sub {
    font-size: clamp(14px, 1.4vw, 17px);
    color: rgba(255, 255, 255, 0.85);
    line-height: 2;
    max-width: 540px;
    margin-bottom: 56px;
    letter-spacing: 0.08em;
    opacity: 0;
    animation: heroFadeUp 1s var(--ease-out) 1.1s forwards;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    opacity: 0;
    animation: heroFadeUp 1s var(--ease-out) 1.3s forwards;
}

@keyframes heroFadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    color: rgba(255, 255, 255, 0.7);
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0;
    animation: heroFadeUp 1s var(--ease-out) 1.6s forwards;
}

.hero-scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.5));
    position: relative;
    overflow: hidden;
}

.hero-scroll-line::after {
    content: '';
    position: absolute;
    top: -60px;
    width: 100%;
    height: 60px;
    background: linear-gradient(180deg, transparent, var(--color-gold));
    animation: scrollLine 2.4s var(--ease-out) infinite;
}

@keyframes scrollLine {
    0% { top: -60px; }
    100% { top: 100%; }
}

.hero-side-text {
    position: absolute;
    right: 40px;
    bottom: 40px;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    writing-mode: vertical-rl;
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 0.5em;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
}

/* --- About Section --- */
.about-section {
    position: relative;
    background: var(--color-white);
    overflow: hidden;
}

.about-bg-text {
    position: absolute;
    top: 40px;
    right: -40px;
    font-family: var(--font-serif);
    font-size: clamp(80px, 15vw, 200px);
    font-weight: 700;
    font-style: italic;
    color: rgba(10, 30, 63, 0.03);
    line-height: 1;
    pointer-events: none;
    white-space: nowrap;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
    position: relative;
}

.about-visual {
    position: relative;
    aspect-ratio: 4/5;
    border-radius: 4px;
    overflow: hidden;
}

.about-visual-main {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.about-visual-main svg {
    width: 100%;
    height: 100%;
    opacity: 0.4;
}

.about-visual-accent {
    position: absolute;
    bottom: -40px;
    right: -40px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-navy);
    box-shadow: var(--shadow-lg);
}

.about-visual-accent .year {
    font-family: var(--font-serif);
    font-size: 56px;
    font-weight: 700;
    font-style: italic;
    line-height: 1;
}

.about-visual-accent .label {
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 0.25em;
    margin-top: 8px;
    text-transform: uppercase;
}

.about-content .section-title {
    font-size: clamp(28px, 3.5vw, 40px);
}

.about-content p {
    margin-bottom: 20px;
    font-size: 15px;
    line-height: 2.1;
    color: var(--color-text-light);
}

.about-content p strong {
    color: var(--color-navy);
    font-weight: 600;
}

.about-more {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    margin-top: 24px;
    font-family: var(--font-en);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-navy);
    text-transform: uppercase;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--color-navy);
    transition: all 0.3s var(--ease);
}

.about-more:hover {
    color: var(--color-gold);
    border-color: var(--color-gold);
    gap: 20px;
}

/* --- Services Section --- */
.services-section {
    background: linear-gradient(180deg, var(--color-off-white) 0%, var(--color-white) 100%);
    position: relative;
    overflow: hidden;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 60px;
}

@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

.service-card {
    position: relative;
    background: var(--color-white);
    border-radius: 6px;
    overflow: hidden;
    min-height: 520px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: all 0.6s var(--ease-out);
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
}

.service-card-visual {
    position: relative;
    height: 280px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card-visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 30%, rgba(212, 168, 87, 0.3), transparent 60%);
}

.service-card-icon {
    position: relative;
    width: 140px;
    height: 140px;
    color: var(--color-gold);
    transition: transform 0.8s var(--ease-out);
}

.service-card:hover .service-card-icon {
    transform: scale(1.1) rotate(8deg);
}

.service-card-number {
    position: absolute;
    top: 24px;
    left: 32px;
    font-family: var(--font-serif);
    font-size: 14px;
    font-style: italic;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.2em;
}

.service-card-body {
    padding: 40px 36px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-card-en {
    font-family: var(--font-en);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.service-card-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 20px;
    letter-spacing: 0.04em;
}

.service-card-desc {
    font-size: 14px;
    line-height: 2;
    color: var(--color-text-light);
    margin-bottom: 28px;
    flex: 1;
}

.service-card-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-en);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.25em;
    color: var(--color-navy);
    text-transform: uppercase;
    transition: all 0.3s var(--ease);
    align-self: flex-start;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--color-navy);
}

.service-card-link:hover {
    color: var(--color-gold);
    border-color: var(--color-gold);
    gap: 18px;
}

/* --- Stats Section --- */
.stats-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-navy-dark) 0%, var(--color-navy) 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 50%, rgba(30, 90, 168, 0.4), transparent 50%),
        radial-gradient(circle at 85% 50%, rgba(212, 168, 87, 0.15), transparent 50%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
    z-index: 2;
}

.stat-item {
    text-align: center;
    padding: 20px;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item:first-child {
    border-left: none;
}

.stat-value {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
    margin-bottom: 16px;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: clamp(48px, 6vw, 72px);
    font-weight: 700;
    font-style: italic;
    color: var(--color-gold);
    line-height: 1;
}

.stat-unit {
    font-family: var(--font-en);
    font-size: 16px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.1em;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 0.15em;
}

.stat-label-en {
    display: block;
    font-family: var(--font-en);
    font-size: 10px;
    color: var(--color-gold);
    letter-spacing: 0.3em;
    margin-top: 6px;
    text-transform: uppercase;
}

/* --- Features Section --- */
.features-section {
    background: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.feature-item {
    position: relative;
    padding: 48px 32px;
    text-align: center;
    background: var(--color-white);
    border: 1px solid var(--color-gray-light);
    transition: all 0.5s var(--ease-out);
}

.feature-item:hover {
    border-color: var(--color-gold);
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.feature-number {
    font-family: var(--font-serif);
    font-size: 14px;
    font-style: italic;
    color: var(--color-gold);
    letter-spacing: 0.25em;
    margin-bottom: 24px;
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 28px;
    color: var(--color-navy);
    transition: all 0.4s var(--ease-out);
}

.feature-item:hover .feature-icon {
    color: var(--color-gold);
    transform: scale(1.1);
}

.feature-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 16px;
    letter-spacing: 0.04em;
}

.feature-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.9;
}

/* --- News Preview --- */
.news-preview-section {
    background: var(--color-off-white);
    padding-bottom: 140px;
}

.news-preview-list {
    margin-top: 60px;
    border-top: 1px solid var(--color-gray-light);
}

.news-preview-item {
    display: grid;
    grid-template-columns: 160px 120px 1fr auto;
    gap: 40px;
    align-items: center;
    padding: 28px 0;
    border-bottom: 1px solid var(--color-gray-light);
    transition: all 0.4s var(--ease);
}

.news-preview-item:hover {
    padding-left: 20px;
    background: rgba(255, 255, 255, 0.6);
}

.news-date {
    font-family: var(--font-en);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-light);
    letter-spacing: 0.1em;
}

.news-cat {
    display: inline-block;
    padding: 4px 14px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--color-navy);
    border: 1px solid var(--color-navy);
    border-radius: 20px;
    text-align: center;
    justify-self: start;
}

.news-cat.gold {
    color: var(--color-gold);
    border-color: var(--color-gold);
}

.news-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-navy);
    transition: color 0.3s var(--ease);
}

.news-preview-item:hover .news-title {
    color: var(--color-gold);
}

.news-arrow {
    font-size: 18px;
    color: var(--color-gray);
    transition: all 0.3s var(--ease);
}

.news-preview-item:hover .news-arrow {
    color: var(--color-gold);
    transform: translateX(6px);
}

.news-preview-more {
    text-align: center;
    margin-top: 48px;
}

/* Responsive */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-visual {
        max-width: 440px;
        margin: 0 auto;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 20px;
    }

    .stat-item:nth-child(3) {
        border-left: none;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 620px;
    }

    .hero-content {
        padding: 0 24px;
    }

    .hero-side-text {
        display: none;
    }

    .hero-scroll {
        bottom: 24px;
    }

    .news-preview-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .news-arrow {
        display: none;
    }

    .stats-grid {
        gap: 32px 16px;
    }

    .stat-item {
        padding: 16px 8px;
    }

    .stat-number {
        font-size: 44px;
    }
}