:root {
    --color-primary: #2c6008;
    --color-primary-dark: #1e4206;
    --color-primary-light: #4a9520;
    --color-primary-rgb: 44, 96, 8;
    --color-black: #1a1a1a;
    --color-gray-700: #4a4a4a;
    --color-gray-500: #7a7a7a;
    --color-gray-300: #e0e0e0;
    --color-gray-100: #fcfcfc;
    --color-soft: #f4f8f0;
    --color-soft-alt: #e8f0e4;
    --color-white: #ffffff;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --container-width: 1200px;
    --header-height: 72px;
    --radius: 8px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-gray-700);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }

.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.centered { text-align: center; }

/* ── Header ── */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--header-height);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-300);
    z-index: 1000;
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.site-header.header-transparent {
    background: transparent;
    border-bottom-color: transparent;
}

.site-header.header-transparent .logo,
.site-header.header-transparent .logo-mark,
.site-header.header-transparent .logo-sep,
.site-header.header-transparent .logo-accent,
.site-header.header-transparent .logo-patent,
.site-header.header-transparent .nav-link { color: var(--color-white); }
.site-header.header-transparent .nav-link::after { background: var(--color-white); }
.site-header.header-transparent .lang-btn { color: rgba(255,255,255,0.7); background: transparent; border-color: rgba(255,255,255,0.3); }
.site-header.header-transparent .lang-btn.active { background: var(--color-white); color: var(--color-primary); }
.site-header.header-transparent .mobile-toggle span { background: var(--color-white); }

.site-header.scrolled {
    background: var(--color-white);
    border-bottom-color: var(--color-gray-300);
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}

.site-header.scrolled .logo,
.site-header.scrolled .nav-link { color: inherit; }
.site-header.scrolled .logo-mark { color: var(--color-black); }
.site-header.scrolled .logo-sep,
.site-header.scrolled .logo-accent,
.site-header.scrolled .logo-patent { color: var(--color-primary); }
.site-header.scrolled .nav-link { color: var(--color-gray-700); }
.site-header.scrolled .nav-link::after { background: var(--color-primary); }
.site-header.scrolled .lang-btn { color: var(--color-gray-500); background: var(--color-white); }
.site-header.scrolled .lang-btn.active { background: var(--color-primary); color: var(--color-white); }
.site-header.scrolled .mobile-toggle span { background: var(--color-black); }

.site-header.menu-open {
    background: var(--color-white);
    border-bottom-color: var(--color-gray-300);
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.site-header.menu-open .logo-mark { color: var(--color-black); }
.site-header.menu-open .logo-sep,
.site-header.menu-open .logo-accent,
.site-header.menu-open .logo-patent { color: var(--color-primary); }
.site-header.menu-open .mobile-toggle span { background: var(--color-black); }

.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-height); }

.logo { font-size: 1.125rem; font-weight: 700; letter-spacing: 0.03em; color: var(--color-black); white-space: nowrap; }
.logo-mark { color: var(--color-black); }
.logo-sep {
    color: var(--color-primary);
    font-weight: 700;
    margin: 0 2px;
    letter-spacing: 0;
}
.logo-accent { color: var(--color-primary); }
.logo-patent {
    font-size: 1.3em;
    font-weight: 700;
    color: var(--color-primary);
    vertical-align: super;
    line-height: 0;
    margin-left: 1px;
    letter-spacing: 0;
}

.main-nav { display: flex; align-items: center; gap: 28px; }
.nav-list { display: flex; list-style: none; gap: 28px; }
.nav-link { font-size: 0.8125rem; font-weight: 500; color: var(--color-gray-700); letter-spacing: 0.02em; position: relative; padding: 4px 0; }
.nav-link::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--color-primary); transition: width var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--color-black); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 16px; }
.lang-switcher { display: flex; border: 1px solid var(--color-gray-300); border-radius: var(--radius); overflow: hidden; }
.lang-btn { padding: 5px 10px; font-size: 0.6875rem; font-weight: 600; color: var(--color-gray-500); background: var(--color-white); letter-spacing: 0.06em; }
.lang-btn.active { background: var(--color-primary); color: var(--color-white); }

.mobile-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--color-black); transition: var(--transition); }

.site-main { padding-top: var(--header-height); }
.site-main-home { padding-top: 0; }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 13px 32px; font-size: 0.8125rem; font-weight: 600;
    letter-spacing: 0.04em; border-radius: var(--radius);
    border: 2px solid transparent; cursor: pointer; transition: all var(--transition);
}
.btn-primary { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: var(--color-white); }
.btn-white { background: var(--color-white); color: var(--color-primary); border-color: var(--color-white); }
.btn-white:hover { background: transparent; color: var(--color-white); border-color: var(--color-white); }
.btn-lg { padding: 15px 40px; }

/* ── Video Hero ── */
.hero-video {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-video-fallback {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-color: var(--color-primary-dark);
    z-index: 0;
}

.hero-video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgb(30 66 6 / 30%) 0%, rgb(20 50 4 / 35%) 50%, rgb(44 96 8 / 72%) 100%);
    z-index: 1;
}

.hero-video-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    padding: 120px 24px 80px;
    max-width: 800px;
}

.hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    opacity: 0.85;
    margin-bottom: 20px;
}

.hero-video-content h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.hero-lead {
    font-size: 1.125rem;
    line-height: 1.75;
    opacity: 0.9;
    margin-bottom: 36px;
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
}

/* ── Values ── */
.values-section { padding: 72px 0; background: var(--color-white); }

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.value-item {
    padding: 32px 24px;
    border-top: 3px solid var(--color-primary);
}

.value-item h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 12px;
}

.value-item p {
    font-size: 0.9375rem;
    color: var(--color-gray-500);
    line-height: 1.65;
}

/* ── Showcase (Sanovel-style full-width bands) ── */
.showcase { background: var(--color-white); }
.showcase:nth-child(even) { background: var(--color-gray-100); }

.showcase-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 420px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.showcase-reverse .showcase-inner { direction: rtl; }
.showcase-reverse .showcase-inner > * { direction: ltr; }

.showcase-visual {
    position: relative;
    min-height: 420px;
    overflow: hidden;
    background: var(--color-gray-100);
}

.showcase:nth-child(even) .showcase-visual { background: var(--color-gray-100); }

.showcase-photo {
    width: 100%;
    height: 100%;
    min-height: 420px;
    object-fit: cover;
    object-position: center;
    display: block;
}

.showcase-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 64px 56px;
}

.showcase-content h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.3;
    margin-bottom: 20px;
}

.showcase-content p {
    font-size: 1rem;
    color: var(--color-gray-500);
    line-height: 1.75;
    margin-bottom: 20px;
}
.showcase-subtitle {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.35;
    margin: 28px 0 16px;
}
.showcase-finale {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.0625rem;
    font-weight: 600;
    font-style: italic;
    color: var(--color-primary) !important;
    margin-bottom: 28px !important;
}


/* ── Corporate CTA ── */
.corporate-cta { padding: 80px 0; background: var(--color-primary); }
.corporate-cta-panel {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.06);
}
.corporate-cta-main {
    padding: 52px 56px;
}
.corporate-cta-main .section-tag { color: rgba(255, 255, 255, 0.7); }
.corporate-cta-main h2 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.3;
    margin-bottom: 16px;
    max-width: 520px;
}
.corporate-cta-main p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.75;
    max-width: 540px;
    margin-bottom: 0;
}
.corporate-cta-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
    list-style: none;
    padding: 0;
}
.corporate-cta-topics li {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.22);
    padding: 8px 16px;
    border-radius: 100px;
}
.corporate-cta-aside {
    padding: 52px 44px;
    background: rgba(0, 0, 0, 0.12);
    border-left: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
}
.corporate-cta-company {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: rgba(255, 255, 255, 0.9);
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}
.corporate-cta-contact { display: flex; flex-direction: column; gap: 18px; }
.corporate-cta-contact-item .label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 4px;
}
.corporate-cta-contact-item a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-white);
}
.corporate-cta-contact-item a:hover { color: rgba(255, 255, 255, 0.75); }
.corporate-cta-btn { width: 100%; text-align: center; justify-content: center; }

/* ── Explore Cards ── */
.explore-section { padding: 80px 0; background: var(--color-white); }

.section-head { margin-bottom: 48px; }
.section-head h2 { font-size: 2rem; font-weight: 700; color: var(--color-black); margin-bottom: 12px; }
.section-head p { font-size: 1rem; color: var(--color-gray-500); }
.section-head-lead { font-size: 1rem; color: var(--color-gray-500); line-height: 1.7; max-width: 560px; margin: 0 auto; }

/* About — core values */
.about-values .section-head { margin-bottom: 40px; }
.values-grid-about { gap: 24px; }
.value-card-about {
    text-align: center;
    padding: 36px 24px 32px;
    background: var(--color-white);
    border: 1px solid rgba(var(--color-primary-rgb), 0.08);
    border-radius: var(--radius-lg);
}
.value-card-icon-wrap {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: linear-gradient(145deg, var(--color-soft) 0%, var(--color-soft-alt) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    transition: transform var(--transition), box-shadow var(--transition);
}
.value-card-about:hover .value-card-icon-wrap {
    transform: scale(1.06);
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.12);
}
.value-card-about h3 {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 10px;
}
.value-card-about p {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    line-height: 1.65;
    margin: 0;
}

.explore-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.explore-card {
    display: block;
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
    color: inherit;
}

.explore-card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    transform: translateY(-4px);
    color: inherit;
}

.explore-card-img {
    background: var(--color-gray-100);
    padding: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 180px;
}

.explore-card-img img { max-height: 100px; object-fit: contain; }

.explore-card-body { padding: 28px 24px; }
.explore-card-body h3 { font-size: 1.125rem; font-weight: 700; color: var(--color-black); margin-bottom: 8px; }
.explore-card-body p { font-size: 0.875rem; color: var(--color-gray-500); margin-bottom: 16px; line-height: 1.6; }

.explore-link {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.03em;
}

/* ── Page Banner ── */
.page-banner {
    padding: 56px 0 48px;
    background: var(--color-primary);
    color: var(--color-white);
}

.page-banner h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 12px;
    margin-top: 16px;
}

.page-banner-lead {
    font-size: 1.0625rem;
    opacity: 0.85;
    max-width: 600px;
    line-height: 1.65;
}

.breadcrumbs { font-size: 0.8125rem; opacity: 0.7; }
.breadcrumbs a { color: var(--color-white); }
.breadcrumbs a:hover { opacity: 1; }
.breadcrumbs .sep { margin: 0 8px; }
.breadcrumbs .current { font-weight: 500; }

/* ── Sections ── */
.section { padding: 72px 0; }
.section-gray { background: var(--color-gray-100); }

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.split-text .lead { font-size: 1.125rem; color: var(--color-gray-700); line-height: 1.8; margin-bottom: 24px; }
.sub-heading { font-size: 1rem; font-weight: 700; color: var(--color-black); margin: 28px 0 12px; }

/* Section overview — intro hero */
.overview-intro { padding-top: 56px; }
.overview-hero {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
    align-items: stretch;
    background: linear-gradient(145deg, var(--color-white) 0%, var(--color-soft) 55%, var(--color-soft-alt) 100%);
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    padding: 48px 52px;
    box-shadow: 0 12px 48px rgba(var(--color-primary-rgb), 0.06);
}
.overview-lead {
    font-size: 1.125rem;
    color: var(--color-gray-700);
    line-height: 1.8;
    margin-bottom: 32px;
}
.overview-goals-title {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 16px;
}
.overview-goals-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.overview-goal-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--color-white);
    border: 1px solid rgba(var(--color-primary-rgb), 0.08);
    border-radius: var(--radius);
    transition: box-shadow var(--transition), transform var(--transition);
}
.overview-goal-card:hover {
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.08);
    transform: translateY(-2px);
}
.overview-goal-num {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.6875rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.overview-goal-text {
    font-size: 0.875rem;
    color: var(--color-gray-700);
    line-height: 1.55;
    padding-top: 4px;
}
.overview-visual-card {
    height: 100%;
    min-height: 320px;
    background: linear-gradient(160deg, var(--color-soft-alt) 0%, var(--color-white) 100%);
    border: 1px solid rgba(var(--color-primary-rgb), 0.08);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.overview-icon-wrap {
    width: 148px;
    height: 148px;
    border-radius: 50%;
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    margin-bottom: 20px;
    box-shadow: 0 10px 36px rgba(var(--color-primary-rgb), 0.1);
}
.overview-icon-wrap .icon-page { width: 88px; height: 88px; max-width: none; margin: 0; }
.overview-visual-caption {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray-500);
    line-height: 1.55;
    max-width: 240px;
    margin: 0;
}

/* Sub-page detail */
.sub-detail-intro { padding-top: 40px; }
.sub-detail-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.25;
    margin-bottom: 8px;
}
.sub-detail-subtitle {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 20px;
}
.sub-detail-body p {
    font-size: 1rem;
    color: var(--color-gray-700);
    line-height: 1.8;
    margin-bottom: 28px;
}
.sub-detail-visual { position: relative; }
.sub-detail-step {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.15;
    line-height: 1;
}
.sub-detail-content .overview-goals { margin-top: 8px; }
.sub-detail-content .overview-icon-wrap .icon-detail { width: 88px; height: 88px; max-width: none; margin: 0; }

.page-image { border-radius: var(--radius); max-width: 400px; margin: 0 auto; }

.prose p { font-size: 1.0625rem; line-height: 1.85; margin-bottom: 20px; color: var(--color-gray-700); }

/* About story */
.about-story { padding-bottom: 0; background: var(--color-white); }
.about-story-tagline {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.35;
    text-align: center;
    margin-bottom: 36px;
}
.about-story-intro { margin-bottom: 56px; text-align: center; }
.about-story-intro p {
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--color-gray-700);
    margin-bottom: 14px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}
.about-story-question {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.375rem !important;
    font-weight: 600;
    font-style: italic;
    color: var(--color-black) !important;
}

/* Story chapters — vertical narrative */
.story-chapter { margin-bottom: 24px; }
.story-chapter-visual {
    max-width: var(--container-width);
    margin: 0 auto 32px;
    padding: 0 24px;
}
.story-chapter-photo {
    width: 100%;
    height: auto;
    max-height: 520px;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-lg);
    display: block;
    box-shadow: 0 12px 48px rgba(var(--color-primary-rgb), 0.1);
}
.story-chapter-body { padding-bottom: 8px; }
.story-chapter-num {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--color-primary);
    margin-bottom: 12px;
}
.story-chapter-body h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.3;
    margin-bottom: 20px;
}
.story-chapter-body p {
    font-size: 1.0625rem;
    line-height: 1.85;
    color: var(--color-gray-700);
    margin-bottom: 16px;
}

/* Stats panel with icons */
.story-stats {
    background: var(--color-soft);
    padding: 64px 0;
    margin: 32px 0 64px;
    border-top: 1px solid rgba(var(--color-primary-rgb), 0.1);
    border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.1);
}
.story-stats-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.375rem, 2.5vw, 1.75rem);
    font-weight: 700;
    color: var(--color-black);
    text-align: center;
    margin-bottom: 40px;
}
.story-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 36px;
}
.story-stat-card {
    background: var(--color-white);
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    transition: box-shadow var(--transition), transform var(--transition);
}
.story-stat-card:hover {
    box-shadow: 0 8px 28px rgba(var(--color-primary-rgb), 0.1);
    transform: translateY(-3px);
}
.story-stat-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, var(--color-soft), var(--color-soft-alt));
    border-radius: 50%;
    line-height: 0;
}
.story-stat-icon .icon-stat { width: 28px; height: 28px; }
.story-stat-text {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--color-black);
    line-height: 1.45;
    margin-bottom: 6px;
}
.story-stat-note {
    font-size: 0.8125rem;
    color: var(--color-gray-500);
    line-height: 1.45;
    margin: 0;
}
.story-stats-closing {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 600;
    font-style: italic;
    color: var(--color-primary);
    text-align: center;
    margin: 0;
}

/* Beliefs */
.story-beliefs {
    list-style: none;
    display: grid;
    gap: 14px;
    margin: 20px 0 24px;
    padding: 0;
}
.story-beliefs li {
    padding: 16px 20px;
    background: var(--color-soft);
    border-left: 3px solid var(--color-primary);
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1rem;
    font-style: italic;
    color: var(--color-gray-700);
    line-height: 1.65;
    border-radius: 0 var(--radius) var(--radius) 0;
}
.story-slogan-note {
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.9375rem;
}

/* Manifesto quote */
.story-manifesto {
    margin: 0;
    padding: 56px 24px;
    background: #faf7f2;
    border: none;
    border-top: 1px solid #c5a059;
    border-bottom: 1px solid #c5a059;
}
.story-manifesto p {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.375rem, 3vw, 1.875rem);
    font-weight: 400;
    font-style: italic;
    color: #1a2744;
    text-align: center;
    line-height: 1.5;
    margin: 0;
}

.about-story-closing {
    background: linear-gradient(145deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    padding: 72px 0;
    margin-top: 0;
}
.about-story-closing h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.3;
}
.about-story-closing p {
    font-size: 1rem;
    line-height: 1.8;
    opacity: 0.92;
    margin-bottom: 16px;
}
.about-story-finale {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem !important;
    font-weight: 700;
    font-style: italic;
    margin-top: 24px !important;
    margin-bottom: 0 !important;
    opacity: 1 !important;
}

.feature-list { list-style: none; display: grid; gap: 10px; }
.feature-list li {
    padding: 12px 16px;
    background: var(--color-gray-100);
    border-left: 3px solid var(--color-primary);
    font-size: 0.9375rem;
    color: var(--color-gray-700);
}

/* ── Subpages Grid ── */
.subpages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.subpage-card {
    position: relative;
    display: block;
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
    color: inherit;
}

.subpage-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.08); transform: translateY(-3px); color: inherit; }

.subpage-step {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 0.6875rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius);
    z-index: 1;
}

.subpage-card-img {
    background: var(--color-gray-100);
    padding: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
}

.subpage-card-img img { max-height: 80px; object-fit: contain; }

.subpage-card-body { padding: 24px; }
.subpage-card-body h3 { font-size: 1rem; font-weight: 700; color: var(--color-black); margin-bottom: 8px; }
.subpage-card-body p { font-size: 0.875rem; color: var(--color-gray-500); margin-bottom: 12px; line-height: 1.55; }

/* ── Sub Page Detail ── */
.page-hero-sub { padding: 24px 0; background: var(--color-gray-100); }
.back-link { display: inline-block; margin-top: 12px; font-size: 0.875rem; font-weight: 500; color: var(--color-primary); }

.sub-page-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }

.sub-page-visual {
    position: relative;
    background: var(--color-gray-100);
    border-radius: var(--radius);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sub-page-step {
    position: absolute;
    top: 16px; left: 16px;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.15;
}

.sub-page-text h1 { font-size: 2rem; font-weight: 700; color: var(--color-black); margin-bottom: 8px; }
.sub-page-text .page-subtitle { font-size: 1rem; color: var(--color-primary); font-weight: 500; margin-bottom: 16px; }
.sub-page-text .lead { font-size: 1.0625rem; color: var(--color-gray-700); margin-bottom: 20px; font-weight: 500; }
.content-body p { font-size: 1rem; line-height: 1.8; margin-bottom: 20px; }

.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.related-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: border-color var(--transition);
    color: inherit;
}
.related-card:hover { border-color: var(--color-primary); }
.related-card img { width: 48px; height: 48px; margin: 0 auto 10px; }
.related-card h3 { font-size: 0.8125rem; font-weight: 600; color: var(--color-black); }

.cta-box-inline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 40px 48px;
    border-radius: var(--radius);
    gap: 32px;
}
.cta-box-inline p { margin: 0; flex: 1; font-size: 1.0625rem; }

.info-list { margin-top: 24px; }
.info-item { padding: 16px 0; border-bottom: 1px solid var(--color-gray-300); }
.info-item strong { display: block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-primary); margin-bottom: 4px; }
.info-item span { font-size: 0.9375rem; color: var(--color-gray-700); }

/* ── Contact ── */
.contact-page { padding-top: 48px; }
.contact-hero { grid-template-columns: 0.95fr 1.05fr; align-items: stretch; }
.contact-hero-info .overview-lead { margin-bottom: 28px; }
.contact-topics { margin-bottom: 28px; }
.contact-topics-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}
.contact-topics-list li {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-gray-700);
    background: var(--color-white);
    border: 1px solid rgba(var(--color-primary-rgb), 0.12);
    padding: 8px 14px;
    border-radius: 100px;
}
.contact-details { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.contact-detail-card {
    padding: 16px 18px;
    background: var(--color-white);
    border: 1px solid rgba(var(--color-primary-rgb), 0.08);
    border-radius: var(--radius);
    transition: box-shadow var(--transition);
}
.contact-detail-card:hover { box-shadow: 0 4px 16px rgba(var(--color-primary-rgb), 0.07); }
.contact-detail-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 4px;
}
.contact-detail-card p,
.contact-detail-card a {
    font-size: 0.9375rem;
    color: var(--color-gray-700);
    line-height: 1.55;
    margin: 0;
}
.contact-detail-card a:hover { color: var(--color-primary); }
.contact-company-block {
    padding-top: 20px;
    border-top: 1px solid rgba(var(--color-primary-rgb), 0.1);
}
.contact-company-block strong {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 4px;
}
.contact-company-block span {
    font-size: 0.75rem;
    color: var(--color-gray-500);
}
.contact-form-panel {
    height: 100%;
    background: var(--color-white);
    border: 1px solid rgba(var(--color-primary-rgb), 0.1);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow: 0 8px 32px rgba(var(--color-primary-rgb), 0.06);
}
.contact-form-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 24px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.6875rem; font-weight: 600; color: var(--color-primary); margin-bottom: 6px; letter-spacing: 0.08em; text-transform: uppercase; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 14px; font-size: 0.9375rem;
    font-family: var(--font-family); border: 1px solid var(--color-gray-300);
    border-radius: var(--radius); background: var(--color-soft); color: var(--color-black);
    transition: border-color var(--transition), background var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-white);
}
.contact-submit { width: 100%; text-align: center; }
.form-success {
    padding: 40px 24px;
    text-align: center;
    background: var(--color-soft);
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
    border-radius: var(--radius-lg);
}
.form-success p { font-size: 1rem; color: var(--color-gray-700); margin: 0; line-height: 1.65; }

.form-error-general {
    padding: 14px 16px;
    margin-bottom: 20px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius);
}
.form-error-general p { margin: 0; font-size: 0.875rem; color: #b91c1c; }

.form-field-error {
    display: block;
    margin-top: 6px;
    font-size: 0.75rem;
    color: #b91c1c;
}

.form-honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ── Footer (white) ── */
.site-footer { background: var(--color-white); color: var(--color-gray-700); padding: 56px 0 0; border-top: 1px solid var(--color-gray-300); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid var(--color-gray-300); }
.footer-logo { font-size: 1.125rem; font-weight: 700; color: var(--color-black); display: inline-block; margin-bottom: 14px; }
.footer-logo .logo-accent { color: var(--color-primary); }
.footer-tagline { font-size: 0.875rem; line-height: 1.65; max-width: 280px; color: var(--color-gray-500); }
.footer-nav h4, .footer-legal h4, .footer-contact h4 { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-black); margin-bottom: 16px; }
.footer-nav ul, .footer-legal ul, .footer-contact ul { list-style: none; }
.footer-nav li, .footer-legal li, .footer-contact li { margin-bottom: 8px; }
.footer-nav a, .footer-legal a, .footer-contact a { font-size: 0.875rem; color: var(--color-gray-500); }
.footer-nav a:hover, .footer-legal a:hover, .footer-contact a:hover { color: var(--color-primary); }
.footer-contact li { font-size: 0.875rem; color: var(--color-gray-500); }
.footer-bottom { padding: 20px 0; text-align: center; }
.footer-bottom p { font-size: 0.75rem; color: var(--color-gray-500); }
.footer-bottom-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 6px 10px; margin: 8px 0 4px; }
.footer-bottom-links a { font-size: 0.75rem; color: var(--color-gray-500); }
.footer-bottom-links a:hover { color: var(--color-primary); }
.footer-bottom-links .sep { font-size: 0.75rem; color: var(--color-gray-300); }
.footer-patent { margin-top: 4px; opacity: 0.7; }
.legal-updated { font-size: 0.8125rem; color: var(--color-gray-500); margin-bottom: 28px; }
.legal-prose h2 { font-size: 1.125rem; font-weight: 700; color: var(--color-black); margin: 32px 0 12px; }
.legal-prose h2:first-child { margin-top: 0; }

/* ── Animations & Icons ── */
@keyframes ringPulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.06); opacity: 0.6; }
}
@keyframes waveMove {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4px); }
}
@keyframes floatBadge {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; transition-delay: var(--delay, 0s); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

.icon { display: block; width: 100%; height: auto; }
.icon-hero-resonance { width: 280px; height: 280px; opacity: 0.35; }
.icon-hero-resonance .ring-1 { animation: ringPulse 3s ease-in-out infinite; transform-origin: center; }
.icon-hero-resonance .ring-2 { animation: ringPulse 3s ease-in-out infinite 0.5s; transform-origin: center; }
.icon-hero-resonance .ring-3 { animation: ringPulse 3s ease-in-out infinite 1s; transform-origin: center; }
.icon-hero-resonance .wave-1 { animation: waveMove 2.5s ease-in-out infinite; }
.icon-hero-resonance .wave-2 { animation: waveMove 2.5s ease-in-out infinite 0.4s; }

.hero-video-fallback { position: absolute; inset: 0; background: linear-gradient(135deg, #1e4206, #2c6008); display: flex; align-items: center; justify-content: center; z-index: 0; }
.hero-resonance { display: flex; align-items: center; justify-content: center; }

.icon-process { display: block; flex-shrink: 0; }
.icon-tech, .icon-value, .icon-advantage, .icon-app, .icon-related { width: 100%; height: 100%; display: block; }
.value-icon, .advantage-icon, .application-icon, .tech-feature-icon, .related-icon, .subpage-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
}
.value-icon { width: 48px; height: 48px; }
.advantage-icon { width: 48px; height: 48px; }
.application-icon { width: 56px; height: 56px; }
.tech-feature-icon { width: 52px; height: 52px; }
.related-icon { width: 48px; height: 48px; }
.subpage-card-icon { padding: 32px; display: flex; align-items: center; justify-content: center; }
.subpage-card-icon .icon-card { width: 56px; height: 56px; }
.icon-demo { width: 120px; height: 120px; }
.icon-tech-main, .icon-showcase, .icon-page, .icon-detail { width: 100%; max-width: 280px; height: auto; margin: 0 auto; }
.icon-card { width: 56px; height: 56px; }

.section-tag { display: inline-block; font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-primary); margin-bottom: 12px; }
.section-soft { background: var(--color-soft); }
.section-cta { margin-top: 40px; }

/* Stats bar */
.stats-bar { background: var(--color-white); padding: 40px 0; border-bottom: 1px solid var(--color-gray-300); }
.stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; align-items: stretch; }
.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 100%;
    padding: 24px 16px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
}
.stat-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 14px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
}
.stat-icon .icon-stat { width: 100%; height: 100%; display: block; }
.stat-body { width: 100%; flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-start; }
.stat-value { display: block; font-size: 1.375rem; font-weight: 700; color: var(--color-black); margin-bottom: 6px; line-height: 1.2; }
.stat-value-title { font-size: 0.9375rem; font-weight: 700; color: var(--color-primary); line-height: 1.35; margin-bottom: 8px; }
.stat-label { display: block; font-size: 0.8125rem; font-weight: 600; color: var(--color-primary); margin-bottom: 6px; }
.stat-note { display: block; font-size: 0.75rem; color: var(--color-gray-500); line-height: 1.45; margin-top: auto; }

/* Process flow */
.process-flow { max-width: 760px; margin: 0 auto 48px; }
.process-flow-track { display: flex; align-items: flex-start; justify-content: center; }
.process-flow-unit {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    min-width: 80px;
}
.process-flow-step {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.4;
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.process-flow-step.active { opacity: 1; transform: scale(1.08); }
.process-flow-step.completed { opacity: 0.75; }
.process-flow-icon {
    width: 56px;
    height: 56px;
    box-sizing: border-box;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    border: 2px solid var(--color-gray-300);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.process-flow-icon .icon-process {
    width: 100%;
    height: 100%;
    display: block;
}
.process-flow-step.active .process-flow-icon { border-color: var(--color-primary); box-shadow: 0 0 0 4px rgba(var(--color-primary-rgb),0.12); }
.process-flow-step.completed .process-flow-icon { border-color: var(--color-primary-light); }
.process-flow-line {
    flex: 0 0 48px;
    width: 48px;
    height: 3px;
    background: var(--color-gray-300);
    border-radius: 100px;
    position: relative;
    overflow: hidden;
    margin-top: 26px;
    align-self: flex-start;
}
.process-flow-line.completed { background: var(--color-primary-light); }
.process-flow-line.completed .process-flow-pulse { transform: scaleX(1); }
.process-flow-pulse {
    position: absolute; inset: 0;
    background: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    border-radius: 100px;
}
.process-flow-line.is-filling .process-flow-pulse {
    animation: lineFill 0.8s ease forwards;
}
.process-flow-label { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-gray-500); text-align: center; }

@keyframes lineFill {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

.process-demo { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; max-width: 900px; margin: 0 auto; }
.process-demo-visual { position: relative; background: var(--color-soft); border-radius: var(--radius-lg); padding: 48px; min-height: 240px; overflow: hidden; }
.process-demo-visual-panel {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    pointer-events: none;
}
.process-demo-visual-panel.active { opacity: 1; visibility: visible; pointer-events: auto; }
.freq-badge { position: absolute; bottom: 20px; right: 20px; background: var(--color-white); border: 2px solid var(--color-primary); border-radius: var(--radius); padding: 12px 18px; text-align: center; box-shadow: 0 4px 20px rgba(var(--color-primary-rgb),0.15); animation: floatBadge 3s ease-in-out infinite; }
.freq-value { display: block; font-size: 1.25rem; font-weight: 700; color: var(--color-primary); }
.freq-sub { font-size: 0.6875rem; font-weight: 600; color: var(--color-gray-500); }
.process-demo-card { background: var(--color-white); border: 1px solid var(--color-gray-300); border-radius: var(--radius-lg); padding: 32px; position: relative; display: grid; }
.process-demo-content {
    grid-area: 1 / 1;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
    pointer-events: none;
}
.process-demo-content.active { opacity: 1; visibility: visible; pointer-events: auto; }
.process-demo-step { position: absolute; top: 16px; right: 20px; font-size: 2rem; font-weight: 700; color: var(--color-primary); opacity: 0.15; }
.process-demo-card h3 { font-size: 1.25rem; font-weight: 700; color: var(--color-black); margin-bottom: 10px; }
.process-demo-card p { font-size: 0.9375rem; color: var(--color-gray-500); margin-bottom: 16px; }
.bio-badge { display: inline-flex; align-items: baseline; gap: 6px; background: var(--color-soft); padding: 8px 14px; border-radius: 100px; }
.bio-value { font-size: 1.125rem; font-weight: 700; color: var(--color-primary); }
.bio-label { font-size: 0.75rem; font-weight: 600; color: var(--color-gray-500); }

/* Tech section */
.tech-home { background: var(--color-white); }
.tech-header { max-width: 680px; margin: 0 auto 48px; }
.tech-header h2 { font-size: 2rem; font-weight: 700; color: var(--color-black); margin-bottom: 16px; line-height: 1.25; }
.tech-header p { font-size: 1rem; color: var(--color-gray-500); line-height: 1.75; }
.tech-showcase { display: grid; gap: 28px; }
.tech-visual-panel {
    background: linear-gradient(160deg, var(--color-soft) 0%, var(--color-soft-alt) 100%);
    border: 1px solid rgba(var(--color-primary-rgb),0.1);
    border-radius: var(--radius-lg);
    padding: 48px 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 260px;
}
.tech-resonance-wrap { position: relative; display: flex; align-items: center; justify-content: center; }
.icon-tech-animated { width: 160px; height: 160px; }
.icon-tech-animated .ring-1 { animation: ringPulse 3s ease-in-out infinite; transform-origin: center; }
.icon-tech-animated .ring-2 { animation: ringPulse 3s ease-in-out infinite 0.5s; transform-origin: center; }
.icon-tech-animated .ring-3 { animation: ringPulse 3s ease-in-out infinite 1s; transform-origin: center; }
.icon-tech-animated .wave-1 { animation: waveMove 2.5s ease-in-out infinite; }
.icon-tech-animated .wave-2 { animation: waveMove 2.5s ease-in-out infinite 0.4s; }
.tech-freq-chip {
    position: absolute;
    bottom: -12px;
    right: -20px;
    background: var(--color-white);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius);
    padding: 10px 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(var(--color-primary-rgb),0.15);
    animation: floatBadge 3s ease-in-out infinite;
}
.tech-freq-chip span { display: block; font-size: 0.625rem; font-weight: 700; letter-spacing: 0.1em; color: var(--color-gray-500); }
.tech-freq-chip strong { font-size: 1.125rem; font-weight: 700; color: var(--color-primary); }
.tech-features-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.tech-feature-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    transition: box-shadow var(--transition), transform var(--transition);
}
.tech-feature-card:hover { box-shadow: 0 8px 28px rgba(var(--color-primary-rgb),0.1); transform: translateY(-3px); }
.tech-feature-icon { width: 52px; height: 52px; margin: 0 auto 16px; }
.tech-feature-card h4 { font-size: 1rem; font-weight: 700; color: var(--color-black); margin-bottom: 8px; }
.tech-feature-card p { font-size: 0.875rem; color: var(--color-gray-500); line-height: 1.6; }
.tech-equation-panel {
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    text-align: center;
}
.tech-equation-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    opacity: 0.75;
    margin-bottom: 12px;
}
.tech-equation-formula {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5em;
    font-size: clamp(1.375rem, 3vw, 1.75rem);
    font-weight: 500;
    font-family: 'Times New Roman', Times, Georgia, serif;
    font-style: italic;
    margin-bottom: 16px;
    line-height: 1;
}
.eq-var,
.eq-frac-num,
.eq-frac-den { font-style: italic; }
.eq-eq { font-style: normal; padding: 0 0.05em; }
.eq-frac {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    vertical-align: middle;
    line-height: 1.1;
}
.eq-frac-num {
    padding: 0 0.35em 0.12em;
    border-bottom: 1.5px solid currentColor;
    width: 100%;
    text-align: center;
}
.eq-frac-den { padding: 0.12em 0.35em 0; text-align: center; }
.eq-sqrt {
    display: inline-flex;
    align-items: stretch;
    margin-left: 0.15em;
}
.eq-sqrt-sign {
    font-size: 4rem;
    font-style: normal;
    transform: translateY(0.08em);
}
.eq-sqrt-body {
    border-top: 1.5px solid currentColor;
    padding: 0.1em 0.2em 0 0.35em;
    display: flex;
    align-items: center;
}
.eq-frac--sqrt .eq-frac-num { border-bottom-width: 1px; padding-bottom: 0.08em; }
.eq-frac--sqrt .eq-frac-den { padding-top: 0.08em; }
.tech-equation-panel p { font-size: 0.9375rem; opacity: 0.85; line-height: 1.65; max-width: 680px; margin: 0 auto; }

/* Values with icons */
.value-icon { width: 48px; height: 48px; margin-bottom: 16px; }
.value-item { padding: 32px 24px; background: var(--color-white); border-radius: var(--radius); border: 1px solid var(--color-gray-300); transition: box-shadow var(--transition), transform var(--transition); }
.value-item:hover { box-shadow: 0 6px 24px rgba(var(--color-primary-rgb),0.08); transform: translateY(-2px); }

/* Advantages & Applications home */
.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.advantage-card { display: block; background: var(--color-white); border: 1px solid var(--color-gray-300); border-radius: var(--radius-lg); padding: 28px 24px; transition: all var(--transition); color: inherit; position: relative; }
.advantage-card:hover { border-color: var(--color-primary); box-shadow: 0 8px 28px rgba(var(--color-primary-rgb),0.1); transform: translateY(-4px); color: inherit; }
.advantage-num { font-size: 2rem; font-weight: 700; color: var(--color-primary); opacity: 0.15; display: block; margin-bottom: 8px; }
.advantage-icon { margin-bottom: 14px; }
.advantage-card h3 { font-size: 1rem; font-weight: 700; color: var(--color-black); margin-bottom: 8px; }
.advantage-card p { font-size: 0.875rem; color: var(--color-gray-500); line-height: 1.55; }

.applications-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.application-card { display: block; background: var(--color-white); border: 1px solid var(--color-gray-300); border-radius: var(--radius-lg); padding: 28px 22px; text-align: center; transition: all var(--transition); color: inherit; }
.application-card:hover { border-color: var(--color-primary); box-shadow: 0 8px 28px rgba(var(--color-primary-rgb),0.1); transform: translateY(-4px); color: inherit; }
.application-icon { width: 56px; height: 56px; margin: 0 auto 16px; }
.application-card h3 { font-size: 1rem; font-weight: 700; color: var(--color-black); margin-bottom: 8px; }
.application-card p { font-size: 0.8125rem; color: var(--color-gray-500); line-height: 1.5; }

/* Sweet sub-page panels */
.sweet-card { border-radius: var(--radius-lg); transition: all var(--transition); }
.sweet-card:hover { box-shadow: 0 8px 32px rgba(var(--color-primary-rgb),0.1); transform: translateY(-3px); }
.sweet-panel { background: linear-gradient(145deg, var(--color-soft) 0%, var(--color-soft-alt) 100%); border-radius: var(--radius-lg); border: 1px solid rgba(var(--color-primary-rgb),0.1); padding: 48px; min-height: 280px; }
.sub-page-panel { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: start; background: var(--color-soft); border-radius: var(--radius-lg); padding: 40px; border: 1px solid rgba(var(--color-primary-rgb),0.08); }
.icon-panel { background: linear-gradient(145deg, var(--color-soft), var(--color-soft-alt)); border-radius: var(--radius-lg); padding: 48px; display: flex; align-items: center; justify-content: center; border: 1px solid rgba(var(--color-primary-rgb),0.08); }
.subpage-card-icon { padding: 32px; display: flex; align-items: center; justify-content: center; background: linear-gradient(180deg, var(--color-soft), var(--color-white)); }
.subpage-card.sweet-card { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-gray-300); background: var(--color-white); }
.feature-list.sweet li { background: var(--color-white); border-radius: 0 var(--radius) var(--radius) 0; border: 1px solid var(--color-gray-300); border-left: 3px solid var(--color-primary); }
.related-icon { width: 48px; height: 48px; margin: 0 auto 12px; }
.page-banner-sm { padding: 32px 0 28px; }


.cta-box-inline .btn-primary { flex-shrink: 0; }

/* ── Responsive ── */
@media (max-width: 1024px) {
    .values-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .process-flow-track { flex-wrap: wrap; gap: 8px; }
    .process-flow-line { margin-top: 0; align-self: center; flex: 0 0 32px; width: 32px; }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .applications-grid { grid-template-columns: repeat(2, 1fr); }
    .process-demo { grid-template-columns: 1fr; }
    .sub-page-panel { grid-template-columns: 1fr; }
    .showcase-inner { grid-template-columns: 1fr; min-height: auto; }
    .showcase-reverse .showcase-inner { direction: ltr; }
    .showcase-content { padding: 48px 32px; }
    .story-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .explore-grid, .subpages-grid { grid-template-columns: repeat(2, 1fr); }
    .split-layout, .sub-page-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-hero { grid-template-columns: 1fr; }
    .overview-hero { grid-template-columns: 1fr; padding: 40px 36px; }
    .overview-visual-card { min-height: 260px; }
    .sub-detail-intro { padding-top: 32px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .corporate-cta-panel { grid-template-columns: 1fr; }
    .corporate-cta-aside { border-left: none; border-top: 1px solid rgba(255, 255, 255, 0.15); }
}

@media (max-width: 768px) {
    .section { padding: 42px 0; }
    .overview-intro,
    .sub-detail-intro { padding-top: 24px; }
    .overview-hero { padding: 28px 20px; gap: 28px; }
    .sub-detail-title { font-size: 1.5rem; }
    .overview-goals-grid { grid-template-columns: 1fr; }
    .overview-lead { margin-bottom: 24px; font-size: 1rem; }
    .overview-icon-wrap { width: 120px; height: 120px; }
    .overview-icon-wrap .icon-page { width: 72px; height: 72px; }

    .section-head h2 { font-size: 1.5rem; }

    .process-flow-track {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px 16px;
        max-width: 300px;
        margin: 0 auto;
    }
    .process-flow-unit { flex: none; min-width: 0; }
    .process-flow-line { display: none; }

    .main-nav {
        position: fixed; top: var(--header-height); left: 0; right: 0;
        z-index: 999;
        background: var(--color-white); border-bottom: 1px solid var(--color-gray-300);
        padding: 24px; max-height: calc(100vh - var(--header-height)); overflow-y: auto;
        transform: translateY(-120%); opacity: 0;
        transition: transform var(--transition), opacity var(--transition);
        pointer-events: none;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        flex-direction: column; align-items: flex-start; gap: 0;
    }
    .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: all; }
    /* Açılır menü paneli her zaman beyaz zemin + koyu metin (header şeffaf olsa bile) */
    .site-header .main-nav .nav-link { color: var(--color-gray-700); }
    .site-header .main-nav .nav-link::after { background: var(--color-primary); }
    .site-header .main-nav .nav-link:hover,
    .site-header .main-nav .nav-link.active { color: var(--color-primary); }
    .site-header .main-nav .lang-switcher { margin-top: 8px; border-top: 1px solid var(--color-gray-300); align-self: flex-start; }
    .site-header .main-nav .lang-btn { color: var(--color-gray-500); background: var(--color-white); }
    .site-header .main-nav .lang-btn.active { background: var(--color-primary); color: var(--color-white); }
    .nav-list { flex-direction: column; gap: 16px; }
    .mobile-toggle { display: flex; }
    .mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .mobile-toggle.active span:nth-child(2) { opacity: 0; }
    .mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .values-grid, .explore-grid, .subpages-grid, .related-grid,
    .stats-grid, .advantages-grid, .applications-grid { grid-template-columns: 1fr; }
    .tech-features-row { grid-template-columns: 1fr; }
    .hero-video { min-height: 75vh; }
    .hero-video-content { padding: 100px 24px 60px; }
    .showcase-content { padding: 40px 24px; }
    .cta-box-inline { flex-direction: column; text-align: center; padding: 32px 24px; }
    .corporate-cta { padding: 56px 0; }
    .corporate-cta-main,
    .corporate-cta-aside { padding: 32px 24px; }
    .corporate-cta-main h2,
    .corporate-cta-main p { max-width: none; }
    .contact-page { padding-top: 32px; }
    .contact-hero { padding: 28px 20px; }
    .contact-form-panel { padding: 28px 20px; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .footer-grid { grid-template-columns: 1fr; }
    .story-stats { padding: 48px 0; }
    .story-stats-grid { grid-template-columns: 1fr; }
    .story-chapter-visual { padding: 0 16px; }
    .story-manifesto { padding: 40px 16px; }
    .about-story-closing { padding: 56px 0; }
}