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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #14313f;
    background: #f4fbfd;
    line-height: 1.6;
    overflow-x: hidden;
}

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

button,
input,
textarea {
    font: inherit;
}

.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.section {
    padding: 82px 0;
    position: relative;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(244, 251, 253, 0.88);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(4, 91, 122, 0.12);
}

.nav-wrap {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at 30% 25%, rgba(255,255,255,0.92), transparent 30%),
        linear-gradient(145deg, var(--secondary), var(--primary));
    box-shadow: 0 14px 28px rgba(4, 91, 122, 0.25);
}

.drop {
    width: 17px;
    height: 23px;
    display: block;
    background: #fff;
    border-radius: 55% 55% 55% 10%;
    transform: rotate(45deg);
}

.brand strong {
    display: block;
    font-size: 1rem;
    color: #073348;
    line-height: 1.1;
}

.brand small {
    display: block;
    color: #5e7f8d;
    font-size: 0.78rem;
    margin-top: 2px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-nav a {
    padding: 10px 13px;
    border-radius: 999px;
    color: #315b6b;
    font-weight: 700;
    font-size: 0.92rem;
    transition: 0.25s ease;
}

.main-nav a:hover {
    background: rgba(14, 165, 183, 0.12);
    color: var(--primary);
}

.main-nav .nav-cta {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 14px 30px rgba(4, 91, 122, 0.22);
}

.main-nav .nav-cta:hover {
    background: var(--secondary);
    color: #fff;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 26px rgba(4, 91, 122, 0.12);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--primary);
    margin: 5px auto;
    border-radius: 99px;
    transition: 0.25s ease;
}

.hero {
    padding: 92px 0 62px;
    min-height: 690px;
    overflow: hidden;
    background:
        radial-gradient(circle at top left, rgba(14, 165, 183, 0.22), transparent 32%),
        radial-gradient(circle at 85% 15%, rgba(245, 197, 66, 0.20), transparent 28%),
        linear-gradient(180deg, #eefbff 0%, #f7fdff 60%, #ffffff 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.bubble {
    position: absolute;
    border-radius: 999px;
    border: 1px solid rgba(14, 165, 183, 0.3);
    background: rgba(255,255,255,0.34);
    animation: floatBubble 8s ease-in-out infinite;
}

.bubble-one {
    width: 190px;
    height: 190px;
    top: 14%;
    left: -60px;
}

.bubble-two {
    width: 110px;
    height: 110px;
    top: 21%;
    right: 12%;
    animation-delay: 1.4s;
}

.bubble-three {
    width: 72px;
    height: 72px;
    bottom: 16%;
    left: 42%;
    animation-delay: 2.2s;
}

.wave-line {
    position: absolute;
    width: 420px;
    height: 110px;
    border: 2px solid rgba(14, 165, 183, 0.18);
    border-color: rgba(14, 165, 183, 0.18) transparent transparent transparent;
    border-radius: 50%;
}

.wave-one {
    right: -80px;
    top: 45%;
    transform: rotate(-15deg);
}

.wave-two {
    left: 5%;
    bottom: 4%;
    transform: rotate(8deg);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.02fr 0.98fr;
    align-items: center;
    gap: 46px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.78rem;
    margin-bottom: 14px;
}

.eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    background: var(--accent);
    border-radius: 99px;
}

.hero h1,
.section-heading h2,
.about-content h2,
.faq-intro h2,
.final-card h2 {
    color: #073348;
    line-height: 1.06;
    letter-spacing: -0.045em;
}

.hero h1 {
    font-size: clamp(2.8rem, 7vw, 5.7rem);
    max-width: 780px;
}

.hero-text {
    margin-top: 22px;
    color: #426879;
    max-width: 660px;
    font-size: 1.12rem;
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 13px 20px;
    border-radius: 999px;
    font-weight: 800;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: 0 18px 36px rgba(4, 91, 122, 0.24);
}

.btn-light {
    color: var(--primary);
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(14, 165, 183, 0.22);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 38px;
    max-width: 580px;
}

.hero-stats div {
    padding: 18px;
    border-radius: 24px;
    background: rgba(255,255,255,0.72);
    border: 1px solid rgba(14, 165, 183, 0.16);
    box-shadow: 0 16px 40px rgba(4, 91, 122, 0.08);
}

.hero-stats strong {
    display: block;
    color: var(--primary);
    font-size: 1.45rem;
    line-height: 1;
}

.hero-stats span {
    display: block;
    color: #638391;
    font-size: 0.86rem;
    margin-top: 7px;
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.water-card {
    position: relative;
    width: min(420px, 100%);
    min-height: 520px;
    border-radius: 42px;
    background:
        radial-gradient(circle at 25% 12%, rgba(255,255,255,0.95), transparent 24%),
        linear-gradient(165deg, rgba(255,255,255,0.82), rgba(194, 240, 248, 0.66));
    border: 1px solid rgba(255,255,255,0.85);
    box-shadow:
        0 35px 70px rgba(4, 91, 122, 0.20),
        inset 0 0 0 1px rgba(14, 165, 183, 0.12);
    padding: 38px;
    display: grid;
    place-items: center;
    overflow: hidden;
}

.water-card::before {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(14,165,183,0.20), transparent 68%);
    bottom: -120px;
    right: -110px;
}

.water-tank {
    position: relative;
    width: 190px;
    height: 330px;
    border-radius: 44px 44px 62px 62px;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.7), transparent 18%, transparent 78%, rgba(255,255,255,0.4)),
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(102, 218, 236, 0.55));
    border: 2px solid rgba(4, 91, 122, 0.16);
    box-shadow: inset 0 -28px 65px rgba(14, 165, 183, 0.34), 0 30px 50px rgba(4, 91, 122, 0.18);
    overflow: hidden;
}

.tank-cap {
    position: absolute;
    width: 72px;
    height: 30px;
    left: 50%;
    top: -1px;
    transform: translateX(-50%);
    background: var(--primary);
    border-radius: 0 0 14px 14px;
}

.tank-shine {
    position: absolute;
    width: 28px;
    height: 190px;
    left: 32px;
    top: 58px;
    border-radius: 999px;
    background: rgba(255,255,255,0.56);
}

.tank-wave,
.tank-wave-two {
    position: absolute;
    left: -28%;
    bottom: 30px;
    width: 156%;
    height: 76px;
    background: rgba(14, 165, 183, 0.34);
    border-radius: 45%;
    animation: waveMove 5s ease-in-out infinite;
}

.tank-wave-two {
    bottom: 70px;
    background: rgba(4, 91, 122, 0.14);
    animation-delay: 0.8s;
}

.delivery-card,
.purity-meter {
    position: absolute;
    z-index: 3;
    background: rgba(255,255,255,0.86);
    border: 1px solid rgba(14, 165, 183, 0.16);
    box-shadow: 0 18px 45px rgba(4, 91, 122, 0.15);
    backdrop-filter: blur(14px);
}

.delivery-card {
    left: 22px;
    top: 62px;
    border-radius: 24px;
    padding: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.delivery-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 15px;
    background: rgba(245,197,66,0.22);
}

.delivery-card strong,
.purity-meter strong {
    display: block;
    color: #073348;
}

.delivery-card small {
    color: #668592;
}

.purity-meter {
    right: 22px;
    bottom: 68px;
    width: 190px;
    border-radius: 26px;
    padding: 17px;
}

.purity-meter span {
    color: #668592;
    font-size: 0.86rem;
}

.meter-track {
    margin-top: 12px;
    width: 100%;
    height: 9px;
    border-radius: 999px;
    background: rgba(4, 91, 122, 0.12);
    overflow: hidden;
}

.meter-track span {
    display: block;
    width: 88%;
    height: 100%;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    border-radius: inherit;
}

.quick-contact {
    margin-top: -22px;
    position: relative;
    z-index: 5;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    padding: 16px;
    background: #fff;
    border-radius: 28px;
    box-shadow: 0 22px 50px rgba(4, 91, 122, 0.12);
    border: 1px solid rgba(14, 165, 183, 0.12);
}

.quick-grid a,
.quick-grid div {
    padding: 18px;
    border-radius: 20px;
    background: #f4fbfd;
}

.quick-grid span {
    display: block;
    color: #72909c;
    font-size: 0.84rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.quick-grid strong {
    display: block;
    color: #073348;
    word-break: break-word;
}

.section-heading {
    max-width: 720px;
    margin-bottom: 34px;
}

.section-heading.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.section-heading h2,
.about-content h2,
.faq-intro h2,
.final-card h2 {
    font-size: clamp(2rem, 4vw, 3.4rem);
}

.section-heading p,
.about-content p,
.faq-intro p,
.final-card p {
    color: #5a7b89;
    margin-top: 14px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.service-card {
    position: relative;
    min-height: 360px;
    padding: 28px;
    border-radius: 32px;
    background: #fff;
    border: 1px solid rgba(14, 165, 183, 0.13);
    box-shadow: 0 24px 58px rgba(4, 91, 122, 0.08);
    overflow: hidden;
    transition: 0.28s ease;
}

.service-card::after {
    content: "";
    position: absolute;
    width: 160px;
    height: 160px;
    right: -70px;
    top: -70px;
    border-radius: 50%;
    background: rgba(14, 165, 183, 0.10);
}

.service-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 30px 70px rgba(4, 91, 122, 0.14);
}

.service-card.featured {
    background:
        radial-gradient(circle at top right, rgba(245, 197, 66, 0.20), transparent 32%),
        linear-gradient(145deg, var(--primary), #073348);
    color: #fff;
}

.service-card.featured h3,
.service-card.featured p,
.service-card.featured li {
    color: #fff;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: grid;
    place-items: center;
    border-radius: 20px;
    background: rgba(14, 165, 183, 0.13);
    font-size: 1.55rem;
    margin-bottom: 22px;
}

.service-card.featured .service-icon {
    background: rgba(255,255,255,0.16);
}

.service-card h3 {
    color: #073348;
    font-size: 1.45rem;
    line-height: 1.15;
    margin-bottom: 12px;
}

.service-card p {
    color: #5a7b89;
}

.service-card ul {
    list-style: none;
    display: grid;
    gap: 10px;
    margin-top: 20px;
}

.service-card li {
    color: #426879;
    padding-left: 24px;
    position: relative;
}

.service-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 900;
}

.about {
    background:
        linear-gradient(180deg, #ffffff 0%, #eefbff 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 46px;
    align-items: center;
}

.quality-panel {
    min-height: 470px;
    border-radius: 42px;
    background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,0.95), transparent 22%),
        linear-gradient(150deg, rgba(14,165,183,0.16), rgba(4,91,122,0.12));
    border: 1px solid rgba(14, 165, 183, 0.16);
    box-shadow: 0 24px 65px rgba(4, 91, 122, 0.11);
    padding: 32px;
    display: grid;
    place-items: center;
}

.quality-ring {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle, #fff 0 46%, transparent 47%),
        conic-gradient(var(--secondary), var(--accent), var(--primary), var(--secondary));
    box-shadow: 0 24px 50px rgba(4, 91, 122, 0.18);
}

.quality-ring span {
    font-size: 2.7rem;
    font-weight: 900;
    color: var(--primary);
}

.quality-list {
    width: 100%;
    display: grid;
    gap: 12px;
    margin-top: 28px;
}

.quality-list p {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255,255,255,0.72);
}

.quality-list strong {
    color: #073348;
}

.quality-list span {
    color: #668592;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 28px;
}

.trust-grid div {
    padding: 20px;
    border-radius: 24px;
    background: #fff;
    border: 1px solid rgba(14, 165, 183, 0.12);
    box-shadow: 0 18px 45px rgba(4, 91, 122, 0.07);
}

.trust-grid strong {
    display: block;
    color: #073348;
    margin-bottom: 7px;
}

.trust-grid span {
    display: block;
    color: #668592;
    font-size: 0.94rem;
}

.process {
    background: #073348;
    color: #fff;
    overflow: hidden;
}

.process::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    top: -220px;
    right: -160px;
    border-radius: 50%;
    background: rgba(14, 165, 183, 0.16);
}

.process .section-heading h2,
.process .eyebrow {
    color: #fff;
}

.process .section-heading p {
    color: rgba(255,255,255,0.74);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    position: relative;
    z-index: 1;
}

.process-step {
    min-height: 260px;
    padding: 28px;
    border-radius: 30px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 22px 60px rgba(0,0,0,0.12);
}

.process-step span {
    display: inline-grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 18px;
    background: var(--accent);
    color: #073348;
    font-weight: 900;
    margin-bottom: 28px;
}

.process-step h3 {
    font-size: 1.4rem;
    line-height: 1.2;
    margin-bottom: 12px;
}

.process-step p {
    color: rgba(255,255,255,0.74);
}

.showcase {
    background: #ffffff;
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr 0.9fr;
    grid-template-rows: 220px 220px;
    gap: 18px;
}

.showcase-card {
    position: relative;
    padding: 26px;
    border-radius: 32px;
    background:
        radial-gradient(circle at top right, rgba(14, 165, 183, 0.13), transparent 34%),
        #f4fbfd;
    border: 1px solid rgba(14, 165, 183, 0.13);
    overflow: hidden;
    box-shadow: 0 22px 55px rgba(4, 91, 122, 0.07);
}

.showcase-card.tall {
    grid-row: span 2;
    background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,0.8), transparent 20%),
        linear-gradient(145deg, #c8f4fb, #f7fdff);
}

.showcase-card.dark {
    background:
        radial-gradient(circle at top right, rgba(245,197,66,0.2), transparent 30%),
        linear-gradient(145deg, var(--primary), #073348);
    color: #fff;
}

.showcase-card.dark h3,
.showcase-card.dark p,
.showcase-card.dark .showcase-label {
    color: #fff;
}

.showcase-label {
    display: inline-flex;
    padding: 7px 12px;
    border-radius: 999px;
    color: var(--primary);
    background: rgba(255,255,255,0.72);
    font-size: 0.78rem;
    font-weight: 900;
    margin-bottom: 18px;
}

.showcase-card h3 {
    color: #073348;
    font-size: 1.5rem;
    line-height: 1.15;
    max-width: 330px;
}

.showcase-card p {
    color: #5a7b89;
    margin-top: 10px;
    max-width: 330px;
}

.bottle-row {
    position: absolute;
    left: 28px;
    right: 28px;
    bottom: 32px;
    display: flex;
    align-items: end;
    justify-content: center;
    gap: 18px;
}

.bottle-row span {
    display: block;
    width: 70px;
    border-radius: 24px 24px 34px 34px;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.8), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,0.78), rgba(14,165,183,0.34));
    border: 1px solid rgba(4,91,122,0.15);
    box-shadow: 0 18px 30px rgba(4,91,122,0.12);
}

.bottle-row span:nth-child(1) {
    height: 150px;
}

.bottle-row span:nth-child(2) {
    height: 220px;
}

.bottle-row span:nth-child(3) {
    height: 180px;
}

.testimonials {
    background:
        linear-gradient(180deg, #ffffff 0%, #eefbff 100%);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.testimonial-card {
    padding: 28px;
    border-radius: 30px;
    background: #fff;
    border: 1px solid rgba(14, 165, 183, 0.13);
    box-shadow: 0 22px 55px rgba(4, 91, 122, 0.08);
}

.testimonial-card p {
    color: #426879;
    font-size: 1.02rem;
}

.testimonial-card p::before {
    content: "“";
    color: var(--secondary);
    font-size: 3rem;
    line-height: 0;
    vertical-align: -0.35em;
    margin-right: 4px;
}

.testimonial-card strong {
    display: block;
    color: #073348;
    margin-top: 22px;
}

.testimonial-card span {
    display: block;
    color: #7895a0;
    font-size: 0.9rem;
}

.faq {
    background: #fff;
}

.faq-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 36px;
    align-items: start;
}

.faq-list {
    display: grid;
    gap: 13px;
}

.faq-item {
    border-radius: 24px;
    background: #f4fbfd;
    border: 1px solid rgba(14, 165, 183, 0.13);
    overflow: hidden;
}

.faq-item button {
    width: 100%;
    border: 0;
    background: transparent;
    color: #073348;
    padding: 20px 22px;
    text-align: left;
    display: flex;
    justify-content: space-between;
    gap: 14px;
    font-weight: 900;
    cursor: pointer;
}

.faq-item button span {
    color: var(--secondary);
    font-size: 1.2rem;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}

.faq-answer p {
    padding: 0 22px 20px;
    color: #5a7b89;
}

.faq-item.active .faq-answer {
    max-height: 160px;
}

.faq-item.active button span {
    transform: rotate(45deg);
}

.final-cta {
    background:
        radial-gradient(circle at 10% 20%, rgba(245,197,66,0.25), transparent 26%),
        linear-gradient(145deg, var(--primary), #073348);
}

.final-card {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 24px;
    align-items: center;
    padding: 34px;
    border-radius: 38px;
    background: rgba(255,255,255,0.10);
    border: 1px solid rgba(255,255,255,0.16);
    box-shadow: 0 32px 70px rgba(0,0,0,0.18);
}

.final-card h2,
.final-card .eyebrow {
    color: #fff;
}

.final-card p {
    color: rgba(255,255,255,0.78);
}

.contact-card {
    display: grid;
    gap: 12px;
}

.contact-card a {
    display: block;
    padding: 18px;
    border-radius: 22px;
    background: rgba(255,255,255,0.92);
    transition: 0.25s ease;
}

.contact-card a:hover {
    transform: translateY(-3px);
    background: #fff;
}

.contact-card span {
    display: block;
    color: #6f8f9c;
    font-size: 0.84rem;
    font-weight: 800;
}

.contact-card strong {
    display: block;
    color: #073348;
    margin-top: 3px;
    word-break: break-word;
}

.contact-card .whatsapp-link {
    background: var(--accent);
}

.site-footer {
    padding: 28px 0 90px;
    background: #073348;
    color: rgba(255,255,255,0.72);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.footer-grid strong {
    display: block;
    color: #fff;
    margin-bottom: 6px;
}

.footer-grid span {
    display: block;
    text-align: right;
}

.floating-whatsapp {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 60;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 16px;
    border-radius: 999px;
    background: #21c063;
    color: #fff;
    font-weight: 900;
    box-shadow: 0 18px 36px rgba(0,0,0,0.22);
    transition: 0.25s ease;
}

.floating-whatsapp:hover {
    transform: translateY(-3px);
}

.floating-whatsapp span {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: rgba(255,255,255,0.18);
}

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

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

@keyframes floatBubble {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-22px) scale(1.04);
    }
}

@keyframes waveMove {
    0%, 100% {
        transform: translateX(0) rotate(0deg);
    }
    50% {
        transform: translateX(18px) rotate(2deg);
    }
}

@media (max-width: 980px) {
    .nav-toggle {
        display: block;
    }

    .main-nav {
        position: absolute;
        left: 16px;
        right: 16px;
        top: 82px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 24px;
        background: #fff;
        box-shadow: 0 24px 60px rgba(4, 91, 122, 0.18);
        border: 1px solid rgba(14, 165, 183, 0.12);
    }

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

    .main-nav a {
        border-radius: 16px;
        padding: 13px 14px;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero-grid,
    .about-grid,
    .faq-grid,
    .final-card {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 70px;
    }

    .hero-visual {
        order: -1;
    }

    .water-card {
        min-height: 430px;
    }

    .water-tank {
        width: 150px;
        height: 260px;
    }

    .service-grid,
    .process-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .showcase-grid {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto;
    }

    .showcase-card.tall {
        grid-row: auto;
        min-height: 360px;
    }

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

    .footer-grid {
        flex-direction: column;
    }

    .footer-grid span {
        text-align: left;
    }
}

@media (max-width: 640px) {
    .container,
    .nav-wrap {
        width: min(100% - 24px, 1120px);
    }

    .section {
        padding: 62px 0;
    }

    .hero {
        padding-top: 52px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.55rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }

    .water-card {
        border-radius: 32px;
        padding: 24px;
    }

    .delivery-card,
    .purity-meter {
        position: relative;
        left: auto;
        right: auto;
        top: auto;
        bottom: auto;
        width: 100%;
        margin-top: 16px;
    }

    .water-card {
        display: flex;
        flex-direction: column;
    }

    .trust-grid,
    .showcase-grid {
        grid-template-columns: 1fr;
    }

    .quality-panel {
        min-height: 390px;
    }

    .quality-ring {
        width: 170px;
        height: 170px;
    }

    .quality-ring span {
        font-size: 2.1rem;
    }

    .quality-list p {
        flex-direction: column;
        gap: 3px;
    }

    .final-card {
        padding: 24px;
        border-radius: 30px;
    }

    .floating-whatsapp {
        left: 14px;
        right: 14px;
        justify-content: center;
    }
}