:root {
    --color-primary: #0D6F9F;
    --color-primary-deep: #073B61;
    --color-secondary: #2AABC5;
    --color-secondary-soft: #E6F5FA;
    --color-accent: #d9b35b;
    --color-accent-soft: #f5ead0;
    --color-surface: #F5FBFD;
    --color-surface-strong: #E6F4FA;
    --color-surface-deep: #D7EDF5;
    --color-white: #ffffff;
    --color-text: #173F5B;
    --color-text-soft: #587589;
    --color-border: rgba(10, 61, 102, 0.12);
    --shadow-soft: 0 22px 52px rgba(8, 61, 102, 0.10);
    --shadow-card: 0 18px 38px rgba(11, 54, 88, 0.08);
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 14px;
    --container: 1210px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    max-width: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    max-width: 100%;
    overflow-x: hidden;
    font-family: "Inter", "Segoe UI", sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background: linear-gradient(180deg, #e7f5fa 0%, #ffffff 220px, #ffffff 100%);
}

img {
    max-width: 100%;
    display: block;
}

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

button,
input,
textarea {
    font: inherit;
}

.container {
    width: min(var(--container), calc(100% - 30px));
    margin: 0 auto;
}

.section-block {
    padding: 56px 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(13, 75, 147, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 88px;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--color-primary-deep);
    min-width: 0;
}

.brand-mark {
    display: block;
    width: clamp(120px, 12vw, 180px);
    height: auto;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    object-fit: contain;
    flex-shrink: 0;
}

.brand-mark.small {
    width: 38px;
    height: 38px;
    font-size: 0.72rem;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
    min-width: 0;
}

.brand-copy strong {
    font-size: 1.05rem;
    font-weight: 800;
}

.brand-copy small {
    color: var(--color-text-soft);
    letter-spacing: 0.09em;
    text-transform: uppercase;
    font-size: 0.68rem;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--color-text-soft);
    font-size: 0.96rem;
    font-weight: 600;
}

.main-nav a {
    transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
    color: var(--color-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 46px;
    height: 46px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: var(--color-white);
    cursor: pointer;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    margin: 0 auto;
    background: var(--color-primary-deep);
    border-radius: 999px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 24px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    letter-spacing: 0.01em;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 16px 28px rgba(9, 93, 162, 0.15);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    box-shadow: 0 16px 30px rgba(21, 139, 199, 0.22);
}

.btn-small {
    min-height: 44px;
    padding: 0 18px;
    font-size: 0.85rem;
}

.btn-secondary {
    background: rgba(13, 75, 147, 0.06);
    color: var(--color-primary-deep);
    border-color: rgba(13, 75, 147, 0.14);
}

.btn-secondary-light {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.28);
}

.btn-light {
    background: var(--color-white);
    color: var(--color-primary-deep);
}

.btn-nav {
    min-height: 46px;
    padding-inline: 18px;
}

.hero {
    padding: 24px 0 16px;
    overflow: hidden;
    background:
        radial-gradient(circle at 12% 14%, rgba(42, 171, 197, 0.16), transparent 30%),
        linear-gradient(135deg, #e2f3f8 0%, #f7fcfd 52%, #d9edf4 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    align-items: center;
    gap: 14px;
    max-width: 100%;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 18px;
    color: var(--color-primary);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
}

.eyebrow.light {
    color: rgba(255, 255, 255, 0.9);
}

.eyebrow.light::before {
    background: rgba(255, 255, 255, 0.76);
}

.hero-copy h1 {
    margin: 0;
    font-size: clamp(2.4rem, 4.8vw, 4.6rem);
    line-height: 0.96;
    letter-spacing: -0.045em;
    color: var(--color-primary-deep);
}

.hero-copy h1 span {
    display: block;
    color: var(--color-secondary);
}

.lead {
    max-width: 620px;
    margin: 12px 0 0;
    color: var(--color-text-soft);
    font-size: 1.02rem;
    line-height: 1.55;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
}

.hero-trust {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 34px;
}

.hero-trust div {
    padding: 18px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.74);
    box-shadow: 0 14px 26px rgba(12, 53, 97, 0.04);
}

.hero-trust strong {
    display: block;
    color: var(--color-primary-deep);
    font-size: 1rem;
    margin-bottom: 5px;
}

.hero-trust span {
    color: var(--color-text-soft);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 600px;
    margin-top: -8px;
    z-index: 0;
    max-width: 100%;
    overflow: hidden;
}

.hero-visual::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 18px;
    width: 460px;
    height: 28px;
    transform: translateX(-50%);
    border-radius: 50%;
    background: rgba(8, 53, 94, 0.10);
    filter: blur(18px);
}

.visual-glow {
    position: absolute;
    width: 76%;
    height: 76%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(31, 169, 216, 0.22), rgba(13, 75, 147, 0.06) 38%, transparent 72%);
    opacity: 0.95;
    filter: blur(24px);
    z-index: 0;
}

.tank-scene {
    position: relative;
    width: min(630px, 100%);
    height: 560px;
    z-index: 1;
    isolation: isolate;
    max-width: 100%;
    overflow: hidden;
}

.tank {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 40px 40px 58px 58px;
    border: 4px solid rgba(12, 64, 116, 0.14);
}

.tank-back {
    display: none;
}

.tank-front {
    bottom: 10px;
    width: min(500px, 92%);
    height: 530px;
    background: transparent;
    border: none;
    box-shadow: none;
    overflow: visible;
    z-index: 4;
}

.tank-asset {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center bottom;
    display: block;
    filter: drop-shadow(0 18px 18px rgba(12, 67, 116, 0.18));
    z-index: 5;
}

.tank-front::before {
    content: "";
    position: absolute;
    inset: 18px 28px auto 28px;
    height: 34px;
    border-radius: 18px 18px 12px 12px;
    background: rgba(255, 255, 255, 0.38);
    border: 1px solid rgba(255, 255, 255, 0.32);
    z-index: 6;
}

.tank-front::after {
    content: "";
    position: absolute;
    inset: 62px 0 32px 0;
    background: linear-gradient(90deg, rgba(255,255,255,0.22), transparent 32%, rgba(255,255,255,0.12) 56%, transparent 100%);
    z-index: 6;
    pointer-events: none;
}

.tank-shine {
    position: absolute;
    left: 18%;
    top: 84px;
    width: 30%;
    height: 60%;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.03));
    transform: skewX(-12deg);
    z-index: 7;
}

.badge-mid { display: none; }
.badge-bottom { display: none; }

.section-heading {
    margin-bottom: 32px;
    text-align: center;
}

.section-heading.left-aligned {
    text-align: left;
}

.section-heading h2 {
    margin: 0;
    font-size: clamp(2.1rem, 3vw, 3.2rem);
    line-height: 1.08;
    letter-spacing: -0.05em;
    color: var(--color-primary-deep);
}

.trust-strip {
    padding: 20px 0 0;
    background: linear-gradient(180deg, rgba(215, 237, 245, 0.58), rgba(255, 255, 255, 0));
}

.strip-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    padding: 18px 0 0;
}

.strip-item {
    display: grid;
    gap: 8px;
    padding: 22px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(231, 244, 255, 0.82));
    box-shadow: var(--shadow-card);
}

.strip-kicker {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-soft);
}

.strip-item strong {
    display: block;
    color: var(--color-primary-deep);
    font-size: 1.1rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.product-card {
    display: flex;
    flex-direction: column;
    padding: 20px 22px 22px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, #fafdff 0%, #eef7fb 100%);
    box-shadow: var(--shadow-card);
}

.featured-card {
    background: linear-gradient(180deg, #eaf6fb 0%, #ffffff 100%);
    border-color: rgba(13, 75, 147, 0.16);
}

.summary-card {
    background: linear-gradient(180deg, #f8f5eb 0%, #ffffff 100%);
    border-color: rgba(217, 179, 91, 0.24);
}

.product-visual {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    min-height: clamp(190px, 20vw, 224px);
    padding: 16px 18px 18px;
    margin-bottom: 16px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(226, 241, 255, 0.8), rgba(255, 255, 255, 0.96));
    border: 1px solid rgba(13, 75, 147, 0.08);
    overflow: hidden;
    isolation: isolate;
}

/* Generic image placeholder used across the site to reserve photo space */
.img-placeholder {
    position: relative;
    display: grid;
    place-items: center;
    color: var(--color-text-soft);
    background: linear-gradient(180deg, rgba(223, 247, 255, 0.9), rgba(245, 253, 255, 0.98));
    border: 1px dashed rgba(10, 61, 102, 0.08);
    border-radius: 14px;
    padding: 10px;
    text-align: center;
    overflow: hidden;
}

.img-placeholder img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    border-radius: inherit;
}

.img-placeholder .placeholder-note {
    display: none;
    font-size: 0.78rem;
    color: var(--color-text-soft);
    font-weight: 600;
    opacity: 0.95;
}

/* Hero placeholder sits inside the tank scene and reserves a large photo area */
.img-placeholder.hero-photo {
    position: absolute;
    left: 50%;
    top: 6%;
    transform: translateX(-50%);
    width: min(760px, 86%);
    height: 74%;
    border-radius: 20px;
    z-index: 0;
    opacity: 0.9;
}

/* Ensure CSS tank visuals remain visible above placeholders */
.tank, .mini-tank { z-index: 2; }

/* Product card placeholders — smaller reserved area within product visual */
.img-placeholder.product-photo {
    position: relative;
    z-index: 1;
    width: min(100%, 260px);
    height: clamp(150px, 16vw, 180px);
    max-height: 100%;
    margin: 0 auto;
    border-radius: 12px;
    aspect-ratio: 4 / 3;
}

.product-photo img,
.app-visual img,
.compare-visual img {
    width: 100%;
    height: 100% !important;
    object-fit: contain;
    object-position: center;
}

/* Prominent product frame for hero area - reserves large portrait/vertical product photo */
.product-frame {
    display: grid;
    place-items: center;
    width: min(820px, 88%);
    max-width: 92vw;
    aspect-ratio: 4 / 5;
    height: auto;
    left: 50%;
    top: 6%;
    transform: translateX(-50%);
    border-radius: 18px;
    padding: 14px;
    background: linear-gradient(180deg, rgba(245, 253, 255, 0.9), rgba(232, 249, 255, 0.98));
    border: 1px solid rgba(10, 61, 102, 0.06);
    box-shadow: 0 18px 40px rgba(11, 54, 88, 0.06);
    z-index: 0;
}

/* Technical image placeholder inside the tech diagram */
.img-placeholder.tech-photo {
    position: relative;
    z-index: 2;
    width: min(100%, 360px);
    height: 220px;
    max-height: 100%;
    margin: 0 auto 12px;
    border-radius: 18px;
}

.img-placeholder.tech-photo img {
    object-fit: contain;
}

/* Application card visuals */
.app-visual {
    position: relative;
    width: 100%;
    height: 160px;
    margin-bottom: 14px;
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Compare card visuals */
.compare-visual {
    position: relative;
    width: 100%;
    height: 120px;
    margin-bottom: 12px;
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-visual::before {
    content: "";
    position: absolute;
    inset: auto 22px 12px;
    height: 18px;
    border-radius: 50%;
    background: rgba(6, 45, 89, 0.08);
    filter: blur(12px);
}

.mini-tank {
    position: absolute;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    display: block;
    width: 120px;
    height: 118px;
    border-radius: 24px 24px 34px 34px;
    border: 4px solid rgba(13, 75, 147, 0.16);
    box-shadow: 0 18px 30px rgba(8, 53, 94, 0.12);
    z-index: 0;
}

.mini-tank::before {
    content: "";
    position: absolute;
    inset: 12px 16px auto 16px;
    height: 20px;
    border-radius: 14px 14px 10px 10px;
    background: rgba(255, 255, 255, 0.34);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.mini-tank::after {
    content: "";
    position: absolute;
    left: 14px;
    top: 32px;
    width: 20px;
    height: 52px;
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,255,255,0.06));
    transform: skewX(-12deg);
}

.tank-aqua {
    background: linear-gradient(180deg, #edf8ff 0%, #c7e5ff 20%, #a0ceff 46%, #2a78d5 100%);
}

.tank-cool {
    background: linear-gradient(180deg, #f7fbff 0%, #dfeeff 18%, #b1d9ff 46%, #387ec9 100%);
}

.tank-standard {
    background: linear-gradient(180deg, #f3f7ff 0%, #d9ebff 18%, #9ac2ef 46%, #285dba 100%);
}

.product-header {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.chip {
    display: inline-flex;
    align-self: flex-start;
    padding: 8px 10px;
    border-radius: 999px;
    background: rgba(13, 75, 147, 0.06);
    color: var(--color-primary);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.product-card h3 {
    margin: 0;
    font-size: 2rem;
    line-height: 1.08;
    letter-spacing: -0.05em;
    color: var(--color-primary-deep);
}

.product-card p {
    margin: 18px 0 20px;
    color: var(--color-text-soft);
}

.product-card ul {
    list-style: none;
    margin: 0 0 22px;
    padding: 0;
    display: grid;
    gap: 10px;
    color: var(--color-text);
    font-weight: 600;
}

.product-card li::before {
    content: "•";
    color: var(--color-accent);
    margin-right: 10px;
}

.product-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: auto;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: 700;
}

.text-link::after {
    content: "→";
    transition: transform 0.2s ease;
}

.text-link:hover::after,
.text-link:focus-visible::after {
    transform: translateX(4px);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.feature-box {
    padding: 20px 18px 18px;
    border: 1px solid var(--color-border);
    border-radius: calc(var(--radius-lg) - 6px);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow-card);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(13, 75, 147, 0.1), rgba(31, 169, 216, 0.12));
    color: var(--color-primary);
    font-weight: 800;
    margin-bottom: 18px;
}

.feature-box h3 {
    margin: 0 0 10px;
    font-size: 1.28rem;
    color: var(--color-primary-deep);
}

.feature-box p {
    margin: 0;
    color: var(--color-text-soft);
}

.technology-wrap {
    display: grid;
    gap: 24px;
}

.technology-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: center;
}

.tech-diagram {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    min-height: 280px;
    padding: 22px 18px 20px;
    border-radius: calc(var(--radius-xl) - 6px);
    background: linear-gradient(180deg, #edf7ff 0%, #ffffff 100%);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    isolation: isolate;
}

.tech-layer {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: grid;
    place-items: center;
    width: min(320px, 72%);
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(107, 181, 255, 0.8), rgba(22, 142, 220, 0.7));
    color: var(--color-white);
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    box-shadow: 0 16px 28px rgba(13, 75, 147, 0.12);
    z-index: 1;
    pointer-events: none;
}

.layer-one {
    bottom: 56px;
    height: 88px;
}

.layer-two {
    bottom: 28px;
    width: min(350px, 80%);
    height: 104px;
    background: linear-gradient(135deg, rgba(62, 142, 198, 0.84), rgba(9, 93, 162, 0.82));
}

.layer-three {
    bottom: 0;
    width: min(380px, 88%);
    height: 120px;
    background: linear-gradient(135deg, rgba(17, 111, 192, 0.84), rgba(5, 64, 129, 0.82));
}

.tech-copy {
    display: grid;
    gap: 18px;
}

.tech-card {
    padding: 30px 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-card);
}

.tech-card h3 {
    margin: 0 0 10px;
    font-size: 1.35rem;
    color: var(--color-primary-deep);
}

.tech-card p {
    margin: 0;
    color: var(--color-text-soft);
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.application-card {
    position: relative;
    padding: 28px 22px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.application-card::before {
    content: "";
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
}

.app-tag {
    display: inline-flex;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(13, 75, 147, 0.06);
    color: var(--color-primary);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.application-card h3 {
    margin: 18px 0 10px;
    font-size: 1.6rem;
    color: var(--color-primary-deep);
    letter-spacing: -0.04em;
}

.application-card p {
    margin: 0;
    color: var(--color-text-soft);
}

.compare-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.compare-card {
    padding: 28px 22px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
}

.compare-card.emphasis {
    background: linear-gradient(180deg, rgba(13, 75, 147, 0.06), rgba(255, 255, 255, 0.96));
}

.compare-title {
    display: inline-block;
    margin-bottom: 12px;
    color: var(--color-primary);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.compare-card strong {
    display: block;
    margin-bottom: 10px;
    color: var(--color-primary-deep);
    font-size: 1.8rem;
    letter-spacing: -0.04em;
}

.compare-card p {
    margin: 0;
    color: var(--color-text-soft);
}

.care-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.care-card {
    padding: 28px 22px;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, #f6fbff 0%, #ffffff 100%);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
}

.care-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(13, 75, 147, 0.1), rgba(31, 169, 216, 0.12));
    color: var(--color-primary);
    font-weight: 800;
    margin-bottom: 16px;
}

.care-card h3 {
    margin: 0 0 10px;
    font-size: 1.28rem;
    color: var(--color-primary-deep);
}

.care-card p {
    margin: 0;
    color: var(--color-text-soft);
}

.faq-wrap {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 26px;
    align-items: start;
}

.faq-list {
    display: grid;
    gap: 14px;
}

.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-white);
    box-shadow: 0 12px 24px rgba(12, 42, 78, 0.04);
    overflow: hidden;
}

.faq-question {
    position: relative;
    width: 100%;
    padding: 20px 52px 20px 20px;
    background: transparent;
    border: 0;
    color: var(--color-primary-deep);
    font-size: 1.02rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
}

.faq-question::after {
    content: "+";
    position: absolute;
    right: 20px;
    top: 18px;
    width: 22px;
    height: 22px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(13, 75, 147, 0.06);
    color: var(--color-primary);
    font-size: 1.3rem;
    font-weight: 700;
}

.faq-item.active .faq-question::after {
    content: "−";
}

.faq-answer {
    padding: 0 20px 20px;
    color: var(--color-text-soft);
}

.faq-answer p {
    margin: 0;
}

.final-cta {
    padding-top: 0;
}

.enquiry {
    padding-top: 72px;
}

.enquiry-grid {
    display: grid;
    grid-template-columns: 1fr 0.95fr;
    gap: 20px;
    align-items: start;
}

.enquiry-copy h2 {
    margin: 0 0 16px;
    color: var(--color-primary-deep);
    font-size: clamp(2rem, 3vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.05em;
}

.enquiry-copy p {
    margin: 0;
    color: var(--color-text-soft);
}

.trust-points {
    list-style: none;
    margin: 20px 0 0;
    padding: 0;
    display: grid;
    gap: 12px;
    color: var(--color-primary-deep);
    font-weight: 700;
}

.trust-points li::before {
    content: "✓";
    margin-right: 10px;
    color: var(--color-accent);
}

.enquiry-form {
    display: grid;
    gap: 14px;
    padding: 20px 18px;
    border: 1px solid var(--color-border);
    border-radius: calc(var(--radius-xl) - 6px);
    background: linear-gradient(180deg, #ffffff 0%, #f4fbff 100%);
    box-shadow: var(--shadow-soft);
}

.enquiry-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.field-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.enquiry-form label {
    display: grid;
    gap: 10px;
    color: var(--color-primary-deep);
    font-weight: 700;
}

.enquiry-form input,
.enquiry-form textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid rgba(13, 75, 147, 0.14);
    border-radius: 12px;
    background: var(--color-white);
    color: var(--color-text);
}

.enquiry-form input:focus,
.enquiry-form textarea:focus {
    outline: none;
    border-color: rgba(14, 165, 212, 0.5);
    box-shadow: 0 0 0 4px rgba(14, 165, 212, 0.1);
}

.final-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 34px 36px;
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--color-primary-deep), var(--color-primary), var(--color-secondary));
    box-shadow: 0 24px 48px rgba(9, 93, 162, 0.18);
}

.final-cta-inner h2 {
    margin: 0;
    max-width: 620px;
    color: var(--color-white);
    font-size: clamp(2rem, 3vw, 3rem);
    letter-spacing: -0.05em;
    line-height: 1.1;
}

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

.dealer-section {
    padding-top: 24px;
}

.dealer-layout {
    display: grid;
    gap: 20px;
}

.dealer-highlight {
    padding: 28px 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, #ffffff 0%, #f3fbff 100%);
    box-shadow: var(--shadow-card);
}

.dealer-highlight p {
    margin: 0 0 18px;
    color: var(--color-text-soft);
}

.dealer-points,
.dealer-reference ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
    color: var(--color-primary-deep);
    font-weight: 600;
}

.dealer-points li::before,
.dealer-reference li::before {
    content: "•";
    color: var(--color-accent);
    margin-right: 10px;
}

.dealer-reference {
    margin-top: 22px;
}

.dealer-reference h3 {
    margin: 0 0 12px;
    font-size: 1.1rem;
    color: var(--color-primary-deep);
}

.partner-card {
    display: flex;
    align-items: center;
    gap: 24px;
    max-width: 760px;
    margin: 0 auto;
    padding: 20px 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #ffffff 0%, #edf7fb 100%);
    box-shadow: var(--shadow-card);
}

.partner-logo {
    width: 60px;
    height: 60px;
    flex: 0 0 60px;
    object-fit: contain;
    object-position: center;
}

.partner-content {
    min-width: 0;
}

.partner-content h3 {
    margin: 0;
    color: var(--color-primary-deep);
    font-size: 1.45rem;
    line-height: 1.1;
}

.partner-role {
    margin: 5px 0 14px;
    color: var(--color-primary);
    font-weight: 700;
}

.partner-content > p:not(.partner-role),
.partner-services {
    margin: 0;
    color: var(--color-text-soft);
    font-size: 0.9rem;
}

.partner-services {
    margin-top: 3px;
}

.partner-link {
    display: inline-block;
    margin-top: 12px;
    color: var(--color-primary-deep);
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.dealer-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.site-footer {
    padding: 46px 0 20px;
    background: #eff8ff;
    border-top: 1px solid rgba(13, 75, 147, 0.08);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-primary-deep);
}

.footer-brand strong,
.footer-brand small {
    display: block;
}

.footer-brand strong {
    font-size: 1.05rem;
}

.footer-brand small {
    color: var(--color-text-soft);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    color: var(--color-text-soft);
    font-weight: 600;
}

.footer-bottom {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid rgba(13, 75, 147, 0.08);
    color: var(--color-text-soft);
    text-align: center;
}

.footer-contact {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 18px;
    margin: 18px auto 10px;
    font-weight: 600;
}

.footer-contact a {
    color: var(--color-primary-deep);
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(13, 75, 147, 0.14);
    border-radius: 50%;
    background: var(--color-white);
    color: var(--color-primary-deep);
    box-shadow: 0 10px 18px rgba(9, 93, 162, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.social-link:hover,
.social-link:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(13, 75, 147, 0.22);
    color: var(--color-primary);
    box-shadow: 0 14px 22px rgba(9, 93, 162, 0.14);
    outline: none;
}

.social-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

@media (max-width: 980px) {
    .hero-grid,
    .technology-layout,
    .faq-wrap,
    .application-grid,
    .compare-grid,
    .care-grid,
    .product-grid,
    .feature-grid,
    .strip-grid,
    .enquiry-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero-grid,
    .technology-layout,
    .faq-wrap,
    .enquiry-grid {
        grid-template-columns: 1fr;
    }

    .product-grid,
    .feature-grid,
    .application-grid,
    .compare-grid,
    .care-grid,
    .strip-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-visual {
        min-height: 160px;
    }

    .tech-diagram {
        min-height: 260px;
    }

    .img-placeholder.hero-photo {
        width: 92%;
        height: 48%;
        top: 8%;
    }

    .product-frame {
        width: 86%;
        aspect-ratio: 3 / 4;
        top: 8%;
    }

    .img-placeholder.product-photo {
        width: min(100%, 250px);
        height: 170px;
    }

    .final-cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 760px) {
    .header-inner {
        position: relative;
        min-height: 78px;
    }

    .nav-toggle {
        display: flex;
    }

    .main-nav {
        position: absolute;
        top: calc(100% + 12px);
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 18px 16px;
        border: 1px solid var(--color-border);
        border-radius: 18px;
        background: rgba(255, 255, 255, 0.98);
        box-shadow: var(--shadow-soft);
    }

    .main-nav.is-open {
        display: flex;
    }

    .main-nav a {
        padding: 8px 10px;
    }

    .btn-nav {
        width: 100%;
    }

    .hero {
        padding-top: 28px;
    }

    .hero-trust,
    .product-grid,
    .feature-grid,
    .application-grid,
    .compare-grid,
    .care-grid,
    .strip-grid,
    .field-row {
        grid-template-columns: 1fr;
    }

    .section-block {
        padding: 48px 0;
    }

    .hero-visual {
        width: 100%;
        min-height: 360px;
        margin-top: 0;
        overflow: hidden;
    }

    .visual-glow {
        width: 88%;
        height: 88%;
    }

    .product-visual {
        min-height: 190px;
    }

    .tech-diagram {
        min-height: 240px;
    }

    .tank-scene {
        width: min(340px, 100%);
        height: 340px;
        max-width: 100%;
    }

    .tank-back {
        width: 205px;
        height: 260px;
        bottom: 18px;
        transform: translateX(-58%) rotate(-5deg);
        max-width: 100%;
    }

    .tank-front {
        width: min(270px, 78%);
        height: 310px;
        bottom: 0;
        max-width: 100%;
    }

    .tank-asset {
        inset: 0;
        width: 100%;
        height: 100%;
    }

    .final-cta-inner {
        padding: 28px 22px;
    }

    .footer-inner {
        display: grid;
        gap: 18px;
    }

    .partner-card {
        align-items: flex-start;
    }

    .partner-logo {
        width: 50px;
        height: 50px;
        flex-basis: 50px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}