/* =========================================
   AVCLS Corporate — Design System
   Based on Neu Ink "Scientific Premium"
   Adapted for Life Science × Visualization
   ========================================= */

/* ---- 1. Design Tokens ---- */
:root {
    /* Primitives */
    --primitive-white: #FFFFFF;
    --primitive-light-gray: #F5F5F7;
    --primitive-black: #050505;
    --primitive-dark-gray: #111111;

    /* Semantic (Light Mode) */
    --bg-base: #F5F5F7;
    --bg-card: #FFFFFF;
    --text-main: #1D1D1F;
    --text-sub: #86868b;
    --accent: #0A9396;
    --accent-light: #94D2BD;
    --accent-dark: #005F73;
    --accent-glow: rgba(10, 147, 150, 0.12);
    --stroke-struct: rgba(0, 0, 0, 0.05);

    /* Shadows */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 20px 40px -10px rgba(0, 0, 0, 0.12);

    /* Typography */
    --font-en: 'Outfit', sans-serif;
    --font-jp: 'Noto Sans JP', sans-serif;
}

[data-theme="dark"] {
    --bg-base: #0a0e14;
    --bg-card: #0f1319;
    --text-main: #F0F0F2;
    --text-sub: #8a95a8;
    --accent: #5EC4C6;
    --accent-light: #94D2BD;
    --accent-dark: #2ba8ab;
    --accent-glow: rgba(94, 196, 198, 0.15);
    --stroke-struct: rgba(94, 196, 198, 0.1);

    --shadow-soft: 0 4px 24px rgba(10, 80, 82, 0.15);
    --shadow-hover: 0 20px 50px -10px rgba(10, 147, 150, 0.2);
}

/* ---- 2. Reset & Base ---- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-base);
    color: var(--text-main);
    font-family: var(--font-jp);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

h1,
h2,
h3,
h4,
h5 {
    font-family: var(--font-en);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

img {
    max-width: 100%;
}

svg {
    overflow: visible;
}

/* ---- 3. Splash Screen ---- */
.splash-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.splash-logo {
    opacity: 0.9;
}

.splash-dna {
    width: 60px;
    height: 60px;
}

.splash-logo-img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.splash-tagline {
    font-family: var(--font-jp);
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--text-sub);
    letter-spacing: 0.08em;
}

/* ---- 4. Navbar ---- */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 3rem;
    z-index: 1000;
    background: rgba(245, 245, 247, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--stroke-struct);
    transition: background 0.3s, border-color 0.3s;
}

[data-theme="dark"] .navbar {
    background: rgba(10, 14, 20, 0.85);
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-svg {
    height: 44px;
    width: 44px;
    transition: transform 0.3s ease;
}

.logo-img {
    height: 40px;
    width: 40px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo-img:hover,
.logo-svg:hover {
    transform: scale(1.05);
}

.logo-pulse-ring {
    animation: logo-ring-pulse 2.5s ease-in-out infinite;
}

@keyframes logo-ring-pulse {

    0%,
    100% {
        r: 6;
        opacity: 0.3;
    }

    50% {
        r: 9;
        opacity: 0.1;
    }
}

.logo-text-group {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.logo-text {
    font-family: var(--font-en);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--text-main);
    letter-spacing: 0.04em;
    line-height: 1.2;
}

.logo-sub {
    font-family: var(--font-jp);
    font-size: 0.55rem;
    color: var(--text-sub);
    letter-spacing: 0.02em;
    line-height: 1.3;
}

.nav-links {
    display: flex;
    gap: 2.2rem;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-en);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-sub);
    transition: color 0.3s ease;
    letter-spacing: 0.02em;
}

.nav-links a:hover {
    color: var(--text-main);
}

.btn-accent {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff !important;
    padding: 0.7rem 1.8rem;
    border-radius: 30px;
    font-family: var(--font-jp);
    font-weight: 500;
    font-size: 0.85rem;
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
    letter-spacing: 0.02em;
}

.btn-accent:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-main);
    padding: 0.7rem 1.8rem;
    border-radius: 30px;
    border: 1.5px solid var(--stroke-struct);
    font-family: var(--font-jp);
    font-weight: 500;
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.btn-outline:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-main);
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background-color: rgba(128, 128, 128, 0.1);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(245, 245, 247, 0.98);
    backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
}

[data-theme="dark"] .mobile-nav-overlay {
    background: rgba(10, 14, 20, 0.98);
}

.mobile-nav-overlay.active {
    display: flex;
}

.mobile-nav-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.mobile-nav-link {
    font-family: var(--font-en);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-main);
    transition: color 0.3s;
}

.mobile-nav-link:hover {
    color: var(--accent);
}

.mobile-nav-link.accent {
    color: var(--accent);
    font-family: var(--font-jp);
    font-size: 1.2rem;
}

/* ---- 5. Hero Section ---- */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    text-align: center;
    overflow: hidden;
    padding-top: 80px;
}

#hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.4;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    padding: 0 2rem;
}

.hero-title {
    font-family: var(--font-jp);
    font-size: 3.6rem;
    line-height: 1.25;
    margin-bottom: 2rem;
    font-weight: 700;
}

.hero-eng-label {
    font-family: var(--font-en);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 1.8rem;
    opacity: 0.85;
}

.hero-title-formal {
    font-size: clamp(1.8rem, 4.5vw, 3.2rem);
    line-height: 1.35;
    letter-spacing: 0.04em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 50%, var(--accent-light) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .gradient-text {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 1.05rem;
    color: var(--text-sub);
    font-weight: 400;
    line-height: 2;
    margin-bottom: 3rem;
}

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

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-sub);
    font-family: var(--font-en);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {

    0%,
    100% {
        opacity: 0.3;
        transform: scaleY(0.6);
    }

    50% {
        opacity: 1;
        transform: scaleY(1);
    }
}

/* ---- 6. Utilities ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.text-center {
    text-align: center;
}

.mb-5 {
    margin-bottom: 4rem;
}

.section-label {
    font-family: var(--font-en);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.section-heading {
    font-family: var(--font-jp);
    font-size: 2.6rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-main);
    line-height: 1.4;
}

.section-sub {
    font-size: 1.1rem;
    color: var(--text-sub);
}

.section-gray {
    padding: 8rem 0;
    background: var(--bg-base);
}

.section-white {
    padding: 8rem 0;
    background: var(--bg-card);
}

/* ---- 7. Cards ---- */
.neu-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 2.5rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1),
        box-shadow 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.neu-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .neu-card {
    background: rgba(16, 22, 32, 0.9);
    border: 1px solid rgba(94, 196, 198, 0.1);
    box-shadow: 0 10px 40px rgba(10, 80, 82, 0.1), 0 4px 16px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .neu-card:hover {
    box-shadow: 0 20px 60px rgba(10, 80, 82, 0.15), 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(94, 196, 198, 0.2);
}

h3 {
    font-family: var(--font-jp);
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    line-height: 1.5;
}

.card-sub {
    font-family: var(--font-en);
    color: var(--text-sub);
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-sub);
    line-height: 1.8;
}

/* ---- 8. Mission Section ---- */
.mission-content {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 4rem;
    align-items: center;
}

.mission-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.mission-svg {
    width: 100%;
    max-width: 300px;
}

.cell-pulse {
    animation: cell-breathe 3s ease-in-out infinite;
}

@keyframes cell-breathe {

    0%,
    100% {
        r: 15;
        opacity: 0.2;
    }

    50% {
        r: 22;
        opacity: 0.08;
    }
}

.mission-text p {
    font-size: 1.05rem;
    color: var(--text-sub);
    line-height: 2;
    margin-bottom: 1.5rem;
}

.mission-text p:last-child {
    margin-bottom: 0;
}

.mission-highlight {
    color: var(--text-main) !important;
    font-weight: 500;
    padding-left: 1.5rem;
    border-left: 3px solid var(--accent);
}

/* ---- 9. Services Section ---- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    text-align: center;
    padding: 3rem 2rem;
}

.service-icon-container {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    background: var(--bg-base);
    border-radius: 50%;
    transition: background 0.3s;
}

[data-theme="dark"] .service-icon-container {
    background: rgba(94, 196, 198, 0.06);
}

.service-number {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 1rem;
    opacity: 0.6;
}

/* ---- 10. About Section ---- */
.about-card {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem;
}

.about-table {
    width: 100%;
    border-collapse: collapse;
}

.about-table th,
.about-table td {
    padding: 1.5rem 1rem;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--stroke-struct);
    font-size: 0.95rem;
    line-height: 1.8;
}

.about-table th {
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    width: 120px;
    font-family: var(--font-jp);
}

.about-table td {
    color: var(--text-sub);
}

.about-table tr:last-child th,
.about-table tr:last-child td {
    border-bottom: none;
}

.about-en {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 0.8rem;
    color: var(--accent);
    margin-top: 0.3rem;
    letter-spacing: 0.02em;
}

.about-list {
    list-style: none;
    padding: 0;
}

.about-list li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: 0.5rem;
}

.about-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.5;
}

/* ---- 11. News Section ---- */
/* Year filter tabs */
.news-year-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
}

.news-year-tab {
    font-family: var(--font-en);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    padding: 0.5rem 1.5rem;
    border-radius: 30px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-sub);
    cursor: pointer;
    transition: all 0.3s;
}

.news-year-tab:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.news-year-tab.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* News list */
.news-list {
    max-width: 860px;
    margin: 0 auto;
}

.news-item {
    padding: 1.8rem 0;
    border-bottom: 1px solid var(--border);
    transition: opacity 0.4s, transform 0.4s;
}

.news-item:first-child {
    border-top: 1px solid var(--border);
}

.news-item.hidden {
    display: none;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.7rem;
}

.news-date {
    font-family: var(--font-en);
    font-size: 0.8rem;
    color: var(--text-sub);
    letter-spacing: 0.04em;
    min-width: 5.5rem;
}

.news-category {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.18rem 0.7rem;
    border-radius: 20px;
    letter-spacing: 0.04em;
}

/* Category color variants */
.cat-info {
    background: var(--accent-glow);
    color: var(--accent);
}

.cat-seminar {
    background: rgba(139, 92, 246, 0.1);
    color: #7c3aed;
}

.cat-cert {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.cat-event {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.cat-partner {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.cat-pub {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

[data-theme="dark"] .cat-seminar {
    background: rgba(139, 92, 246, 0.15);
    color: #a78bfa;
}

[data-theme="dark"] .cat-cert {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
}

[data-theme="dark"] .cat-event {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

[data-theme="dark"] .cat-partner {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
}

[data-theme="dark"] .cat-pub {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

.news-title {
    font-family: var(--font-jp);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.news-excerpt {
    font-size: 0.88rem;
    color: var(--text-sub);
    line-height: 1.75;
    margin-bottom: 0;
}

/* ---- 12. Contact Section ---- */
.section-contact {
    padding: 8rem 0;
    background: var(--bg-base);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 2.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info-card {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-info-card:hover {
    transform: none;
}

.contact-info-icon {
    margin-bottom: 0.5rem;
}

.contact-email-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-en);
    font-size: 1rem;
    font-weight: 500;
    color: var(--accent);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    background: var(--accent-glow);
    transition: background 0.3s;
}

.contact-email-link:hover {
    background: rgba(10, 147, 150, 0.2);
}

.contact-info-detail {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 0.5rem;
    width: 100%;
    padding-top: 1.5rem;
    border-top: 1px solid var(--stroke-struct);
}

.contact-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.contact-detail-label {
    font-size: 0.85rem;
    color: var(--text-sub);
}

.contact-detail-value {
    font-size: 0.85rem;
    color: var(--text-main);
    font-weight: 500;
}

/* Contact Form */
.contact-form-container {
    padding: 2.5rem;
}

.contact-form-container:hover {
    transform: none;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-main);
}

.required {
    color: #e74c3c;
    font-size: 0.8rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg-base);
    border: 1.5px solid var(--stroke-struct);
    border-radius: 12px;
    font-family: var(--font-jp);
    font-size: 0.9rem;
    color: var(--text-main);
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-sub);
    opacity: 0.5;
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2386868b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Privacy Checkbox */
.form-privacy {
    margin-top: 0.5rem;
}

.privacy-checkbox {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-sub);
}

.privacy-checkbox input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 1.5px solid var(--stroke-struct);
    border-radius: 6px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s;
}

.privacy-checkbox input:checked+.checkmark {
    background: var(--accent);
    border-color: var(--accent);
}

.privacy-checkbox input:checked+.checkmark::after {
    content: '';
    width: 6px;
    height: 10px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-top: -2px;
}

.privacy-link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.privacy-link:hover {
    opacity: 0.8;
}

/* Submit Button */
.btn-submit {
    width: 100%;
    padding: 1rem;
    font-size: 0.95rem;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.btn-submit:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-arrow {
    transition: transform 0.2s;
}

.btn-submit:not(:disabled):hover .btn-arrow {
    transform: translateX(4px);
}

/* Success State */
.contact-success {
    text-align: center;
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.success-icon svg {
    animation: successPop 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes successPop {
    0% {
        transform: scale(0);
        opacity: 0;
    }

    60% {
        transform: scale(1.15);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ---- 13. Footer ---- */
footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--stroke-struct);
    background: var(--bg-base);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-logo {
    font-family: var(--font-en);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--text-main);
    letter-spacing: 0.04em;
}

.footer-org {
    font-size: 0.75rem;
    color: var(--text-sub);
}

.copyright {
    font-size: 0.75rem;
    color: var(--text-sub);
}

/* ---- 14. Animations ---- */
.fade-in {
    opacity: 0;
    animation: fadeUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.delay-2 {
    animation-delay: 0.3s;
}

.delay-3 {
    animation-delay: 0.6s;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Scroll reveal */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.scroll-reveal-stagger>* {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal-stagger.visible>*:nth-child(1) {
    transition-delay: 0s;
}

.scroll-reveal-stagger.visible>*:nth-child(2) {
    transition-delay: 0.15s;
}

.scroll-reveal-stagger.visible>*:nth-child(3) {
    transition-delay: 0.3s;
}

.scroll-reveal-stagger.visible>* {
    opacity: 1;
    transform: translateY(0);
}

/* ---- 15. Responsive ---- */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .section-heading {
        font-size: 2.2rem;
    }

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

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

    .mission-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .mission-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-section {
        padding-top: 60px;
        min-height: 90vh;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-sub {
        font-size: 0.9rem;
        line-height: 1.8;
    }

    .hero-sub br {
        display: none;
    }

    .hero-scroll-indicator {
        display: none;
    }

    .section-gray,
    .section-white,
    .section-contact {
        padding: 5rem 0;
    }

    .container {
        padding: 0 1.5rem;
    }

    .section-heading {
        font-size: 1.8rem;
    }

    .mb-5 {
        margin-bottom: 2.5rem;
    }

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

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

    .mission-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .mission-visual {
        order: -1;
    }

    .mission-svg {
        max-width: 200px;
    }

    .about-card {
        padding: 1.5rem;
    }

    .about-table th {
        display: block;
        width: 100%;
        padding-bottom: 0.5rem;
        border-bottom: none;
    }

    .about-table td {
        display: block;
        padding-top: 0;
        padding-bottom: 1.5rem;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .contact-form-container {
        padding: 1.5rem;
    }

    .logo-sub {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }

    .section-heading {
        font-size: 1.5rem;
    }

    .service-card {
        padding: 2rem 1.5rem;
    }

    .neu-card {
        border-radius: 18px;
    }
}