/* =========================================
   DMR Group — Public Site Stylesheet
   Calm · Clear · Structured
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;1,400&display=swap');

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --ink:          #1C2430;
    --ink-mid:      #364254;
    --ink-soft:     #556273;
    --ink-faint:    #7F8B9A;
    --rule:         #DCE3EA;
    --rule-soft:    #E8EEF3;
    --bg:           #F7F4EE;
    --bg-off:       #F1ECE4;
    --bg-panel:     #FCFAF7;
    --dark:         #1F2935;
    --dark-panel:   #22303D;

    --ethicai:      #2E6B46;
    --ethicai-bg:   #ECF5EE;
    --silouk:       #517AA6;
    --silouk-bg:    #EDF3F8;
    --keepr:        #A87632;
    --keepr-bg:     #FAF1E4;

    --shadow-soft:  0 10px 30px rgba(28, 36, 48, 0.06);
    --radius:       18px;
}

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'Inter', system-ui, Helvetica, Arial, sans-serif;
    font-size: 18px;
    font-weight: 400;
    line-height: 1.8;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    max-width: 100%;
    height: auto;
}

.eyebrow {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 14px;
}

h1, h2, h3 {
    font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
    font-weight: 500;
    line-height: 1.12;
    letter-spacing: -0.015em;
    color: var(--ink);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(81, 122, 166, 0.25);
    outline-offset: 3px;
}

.site-header {
    background: rgba(247, 244, 238, 0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(220, 227, 234, 0.9);
    padding: 0 64px;
    position: sticky;
    top: 0;
    z-index: 200;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 88px;
}

.site-logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.site-logo img {
    height: 52px;
    width: auto;
    display: block;
}

.top-nav ul {
    list-style: none;
    display: flex;
    gap: 36px;
    align-items: center;
}

.top-nav a {
    font-size: 14px;
    font-weight: 600;
    color: var(--ink-mid);
    text-decoration: none;
    padding-bottom: 2px;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
    letter-spacing: 0.01em;
}

.top-nav a:hover,
.top-nav a.active {
    color: var(--ink);
    border-bottom-color: var(--ink);
}

.top-nav .nav-cta {
    background: var(--dark);
    color: #FFFFFF !important;
    border: none !important;
    padding: 11px 22px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: background 0.2s !important;
}

.top-nav .nav-cta:hover {
    background: #2D3A48 !important;
}

.hero-banner {
    position: relative;
    width: 100%;
    min-height: 640px;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.hero-banner img.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 55%;
    filter: brightness(0.52) saturate(0.7);
}

.hero-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(155deg, rgba(10,18,26,0.18) 0%, rgba(16,28,40,0.56) 55%, rgba(24,34,46,0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 64px 84px;
}

.hero-content .hero-brand {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    display: block;
    margin-bottom: 16px;
}

.hero-content h1 {
    font-size: 64px;
    color: #FFFFFF;
    max-width: 760px;
    margin-bottom: 22px;
    line-height: 1.04;
    text-shadow: 0 6px 26px rgba(0,0,0,0.22);
}

.hero-content .hero-sub {
    font-size: 20px;
    color: rgba(255,255,255,0.82);
    max-width: 680px;
    line-height: 1.75;
    margin-bottom: 30px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 12px;
    margin-bottom: 34px;
}

.hero-meta span {
    display: inline-flex;
    align-items: center;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.16);
    color: rgba(255,255,255,0.88);
    font-size: 13px;
    font-weight: 500;
    line-height: 1.2;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-decoration: none;
    padding: 15px 26px;
    border-radius: 999px;
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: 2px solid transparent;
    line-height: 1;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-white {
    background: #FFFFFF;
    color: var(--ink);
    border-color: #FFFFFF;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.btn-white:hover {
    background: #F5F7F9;
    border-color: #F5F7F9;
}

.btn-outline-white {
    background: transparent;
    color: rgba(255,255,255,0.9);
    border-color: rgba(255,255,255,0.42);
}

.btn-outline-white:hover {
    border-color: rgba(255,255,255,0.9);
    color: #FFFFFF;
}

.btn-dark {
    background: var(--dark);
    color: #FFFFFF;
    border-color: var(--dark);
}

.btn-dark:hover {
    background: #2D3A48;
    border-color: #2D3A48;
}

.btn-outline-dark {
    background: transparent;
    color: var(--ink);
    border-color: var(--rule);
}

.btn-outline-dark:hover {
    border-color: var(--ink-mid);
    background: rgba(255,255,255,0.4);
}

.btn-ethicai {
    background: var(--ethicai);
    color: #FFFFFF;
    border-color: var(--ethicai);
}
.btn-ethicai:hover { background: #275A3B; border-color: #275A3B; }

.btn-silouk {
    background: var(--silouk);
    color: #FFFFFF;
    border-color: var(--silouk);
}
.btn-silouk:hover { background: #44698F; border-color: #44698F; }

.btn-keepr {
    background: var(--keepr);
    color: #FFFFFF;
    border-color: var(--keepr);
}
.btn-keepr:hover { background: #92672D; border-color: #92672D; }

.section {
    padding: 104px 64px;
}

.section--white { background: var(--bg); }
.section--off   { background: var(--bg-off); }
.section--dark  { background: var(--dark-panel); }

.section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 56px;
}

.section-header--split {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: end;
}

.section-header h2 {
    font-size: 42px;
    color: var(--ink);
}

.section-header--light h2 { color: #FFFFFF; }

.section-header p {
    font-size: 18px;
    color: var(--ink-soft);
    max-width: 600px;
    margin-top: 14px;
    line-height: 1.8;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.platform-card {
    background: var(--bg-panel);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 34px 30px 30px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
    box-shadow: 0 1px 0 rgba(255,255,255,0.5) inset;
}

.platform-card:hover {
    box-shadow: var(--shadow-soft);
    transform: translateY(-3px);
    border-color: #C7D3DE;
}

.platform-card .card-top-bar {
    height: 5px;
    border-radius: 999px;
    margin-bottom: 28px;
    width: 68px;
}

.platform-card.ethicai .card-top-bar { background: var(--ethicai); }
.platform-card.silouk  .card-top-bar { background: var(--silouk); }
.platform-card.keepr   .card-top-bar { background: var(--keepr); }

.platform-card .card-logo {
    height: 42px;
    width: auto;
    object-fit: contain;
    object-position: left center;
    display: block;
    margin-bottom: 22px;
}

.platform-card p {
    font-size: 16px;
    color: var(--ink-soft);
    line-height: 1.8;
    flex: 1;
    margin-bottom: 28px;
}

.about-preview {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 72px;
    align-items: center;
}

.about-preview h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.about-preview p {
    font-size: 18px;
    color: var(--ink-soft);
    line-height: 1.85;
    margin-bottom: 18px;
}

.about-panel {
    background: linear-gradient(180deg, rgba(255,255,255,0.7) 0%, rgba(252,250,247,1) 100%);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 34px;
    box-shadow: var(--shadow-soft);
}

.about-panel-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 16px;
}

.about-preview .about-quote {
    border-left: none;
    padding-left: 0;
}

.about-preview .about-quote blockquote {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 30px;
    font-style: italic;
    color: var(--ink-mid);
    line-height: 1.45;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.philosophy-item {
    background: var(--bg-panel);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 40px 34px;
}

.philosophy-item .pi-number {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 38px;
    font-weight: 400;
    color: #C6D0DA;
    display: block;
    margin-bottom: 18px;
    line-height: 1;
}

.philosophy-item h3 {
    font-size: 24px;
    margin-bottom: 14px;
    color: var(--ink);
}

.philosophy-item p {
    font-size: 16px;
    color: var(--ink-soft);
    line-height: 1.8;
}

.research-preview-list {
    list-style: none;
    border-top: 1px solid var(--rule);
    margin-bottom: 40px;
}

.research-preview-list li {
    border-bottom: 1px solid var(--rule);
}

.research-preview-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    text-decoration: none;
    color: var(--ink);
    font-size: 18px;
    font-weight: 500;
    transition: color 0.2s, padding-left 0.2s;
    gap: 24px;
}

.research-preview-list li a:hover {
    color: var(--ink-mid);
    padding-left: 6px;
}

.research-preview-list .rpl-tag {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-faint);
    min-width: 170px;
}

.research-preview-list .rpl-arrow {
    font-size: 18px;
    color: var(--ink-faint);
    flex-shrink: 0;
}

.cta-band {
    background: linear-gradient(135deg, #22303D 0%, #1C2732 100%);
    padding: 88px 64px;
    text-align: center;
}

.cta-band-inner {
    max-width: 680px;
    margin: 0 auto;
}

.cta-band h2 {
    font-size: 38px;
    color: #FFFFFF;
    margin-bottom: 16px;
}

.cta-band p {
    font-size: 18px;
    color: rgba(255,255,255,0.72);
    margin-bottom: 36px;
    line-height: 1.75;
}

.page-hero {
    background: linear-gradient(180deg, #F4EFE7 0%, #F7F4EE 100%);
    border-bottom: 1px solid var(--rule);
    padding: 92px 64px 78px;
}

.page-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.page-hero h1 {
    font-size: 54px;
    color: var(--ink);
    max-width: 780px;
    margin-bottom: 20px;
}

.page-hero p {
    font-size: 19px;
    color: var(--ink-soft);
    max-width: 680px;
    line-height: 1.85;
}

.intro-block {
    max-width: 820px;
    margin-bottom: 72px;
}

.intro-copy {
    font-size: 21px;
    color: var(--ink-mid);
    line-height: 1.85;
    margin-bottom: 18px;
}

.intro-block p:not(.intro-copy) {
    font-size: 18px;
    color: var(--ink-soft);
}

.two-col-text {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
}

.text-block h2 {
    font-size: 30px;
    margin-bottom: 20px;
}

.text-block p {
    font-size: 18px;
    color: var(--ink-soft);
    line-height: 1.85;
    margin-bottom: 16px;
}

.product-row {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    align-items: start;
    padding: 64px 0;
    border-bottom: 1px solid var(--rule);
}

.product-row:first-child { padding-top: 0; }
.product-row:last-child  { border-bottom: none; padding-bottom: 0; }

.product-row-label .pr-logo {
    height: 44px;
    width: auto;
    display: block;
    margin-bottom: 16px;
}

.product-row-label .pr-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 999px;
}

.product-row-label .pr-tag.ethicai { background: var(--ethicai-bg); color: var(--ethicai); }
.product-row-label .pr-tag.silouk  { background: var(--silouk-bg);  color: var(--silouk); }
.product-row-label .pr-tag.keepr   { background: var(--keepr-bg);   color: var(--keepr); }

.product-row-body p {
    font-size: 18px;
    color: var(--ink-soft);
    line-height: 1.85;
    margin-bottom: 18px;
}

.product-row-body .lead {
    font-size: 22px;
    color: var(--ink-mid);
    line-height: 1.65;
}

.product-row-body p:last-of-type { margin-bottom: 32px; }

.research-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.research-article {
    background: var(--bg-panel);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 40px;
    text-decoration: none;
    display: block;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.research-article:hover {
    background: #FFFFFF;
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.research-article .ra-tag {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-faint);
    display: block;
    margin-bottom: 16px;
}

.research-article h3 {
    font-size: 22px;
    color: var(--ink);
    margin-bottom: 14px;
    line-height: 1.35;
}

.research-article p {
    font-size: 16px;
    color: var(--ink-soft);
    line-height: 1.75;
}

.contact-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ink-mid);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 16px;
    color: var(--ink);
    background: #FCFBF8;
    border: 1px solid var(--rule);
    padding: 15px 16px;
    border-radius: 14px;
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--silouk);
    box-shadow: 0 0 0 4px rgba(81, 122, 166, 0.12);
    background: #FFFFFF;
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237F8B9A' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}

.contact-sidebar .sidebar-block {
    background: var(--bg-panel);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 14px;
}

.contact-sidebar .sidebar-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 10px;
}

.contact-sidebar p {
    font-size: 15px;
    color: var(--ink-soft);
    line-height: 1.75;
}

.contact-sidebar a {
    color: var(--ink);
    font-weight: 600;
    text-decoration: none;
}

.contact-sidebar a:hover { text-decoration: underline; }

.site-footer {
    background: var(--dark-panel);
    padding: 64px 64px 44px;
    margin-top: auto;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 56px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 32px;
}

.footer-brand img {
    height: 40px;
    width: auto;
    filter: brightness(10);
    opacity: 0.62;
    margin-bottom: 18px;
    display: block;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255,255,255,0.56);
    line-height: 1.75;
    max-width: 280px;
}

.footer-col h4 {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.45);
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 14px;
    color: rgba(255,255,255,0.68);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-col a:hover { color: rgba(255,255,255,0.92); }

.footer-col .eco-ethicai::before,
.footer-col .eco-silouk::before,
.footer-col .eco-keepr::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 8px;
    vertical-align: middle;
}

.footer-col .eco-ethicai::before { background: var(--ethicai); }
.footer-col .eco-silouk::before  { background: var(--silouk); }
.footer-col .eco-keepr::before   { background: var(--keepr); }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-copy {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.footer-legal {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-legal a {
    font-size: 12px;
    color: rgba(255,255,255,0.44);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-legal a:hover { color: rgba(255,255,255,0.78); }

@media (max-width: 1024px) {
    .platform-grid { grid-template-columns: 1fr 1fr; }
    .philosophy-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .footer-top .footer-brand { grid-column: 1 / -1; }
    .section-header--split { grid-template-columns: 1fr; gap: 18px; }
}

@media (max-width: 900px) {
    body { font-size: 17px; }
    .site-header { padding: 0 24px; }
    .header-inner { height: 74px; }
    .site-logo img { height: 40px; }
    .top-nav { display: none; }

    .hero-banner { min-height: 540px; }
    .hero-content { padding: 0 24px 56px; }
    .hero-content h1 { font-size: 42px; }
    .hero-content .hero-sub { font-size: 17px; }

    .section { padding: 72px 24px; }
    .cta-band { padding: 72px 24px; }
    .page-hero { padding: 62px 24px 56px; }
    .page-hero h1 { font-size: 38px; }

    .about-preview { grid-template-columns: 1fr; gap: 40px; }
    .two-col-text { grid-template-columns: 1fr; gap: 48px; }
    .product-row { grid-template-columns: 1fr; gap: 28px; }
    .contact-layout { grid-template-columns: 1fr; gap: 48px; }
    .form-row { grid-template-columns: 1fr; }
    .research-grid { grid-template-columns: 1fr; }

    .site-footer { padding: 48px 24px 36px; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
    .footer-bottom { flex-direction: column; gap: 16px; }
    .footer-legal { flex-wrap: wrap; justify-content: center; }
}

@media (max-width: 600px) {
    .platform-grid { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 32px; }
    .page-hero h1 { font-size: 30px; }
    .hero-actions { flex-direction: column; }
    .hero-meta { gap: 8px; }
    .hero-meta span { width: 100%; justify-content: center; }
    .footer-top { grid-template-columns: 1fr; }
    .btn { width: 100%; text-align: center; }
}