/* =========================
   RESET
========================= */

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f7f9fb;
    color: #10233f;
    line-height: 1.6;
}

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

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

button,
input,
textarea {
    font: inherit;
}


/* =========================
   VARIABLES
========================= */

:root {
    --navy: #0a1d3a;
    --navy-soft: #102b4f;
    --teal: #10b2a6;
    --teal-dark: #0b9189;
    --gray: #6b7176;
    --light: #f7f9fb;
    --white: #ffffff;
    --text: #17304f;
    --muted: #637187;
    --border: #dce4ec;

    --shadow:
        0 20px 50px rgba(10, 29, 58, 0.12);

    --radius: 18px;
}


/* =========================
   LAYOUT
========================= */

.container {
    width: min(1180px, calc(100% - 40px));
    margin-inline: auto;
}


/* =========================
   HEADER
========================= */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(220, 228, 236, 0.8);
}

.header-container {
    min-height: 86px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.brand {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
}

.brand-logo {
    width: 235px;
    height: auto;
}

.navigation {
    display: flex;
    align-items: center;
    gap: 30px;
}

.navigation a {
    position: relative;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--navy);
    transition: color 0.2s ease;
}

.navigation a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 0;
    height: 2px;
    background: var(--teal);
    transition: width 0.25s ease;
}

.navigation a:hover {
    color: var(--teal-dark);
}

.navigation a:hover::after {
    width: 100%;
}

.menu-button {
    display: none;
    border: 0;
    background: transparent;
    color: var(--navy);
    font-size: 1.7rem;
    cursor: pointer;
}


/* =========================
   HERO
========================= */

.hero {
    position: relative;
    overflow: hidden;
    min-height: 680px;
    display: flex;
    align-items: center;
    background:
        radial-gradient(
            circle at 80% 30%,
            rgba(16, 178, 166, 0.18),
            transparent 30%
        ),
        linear-gradient(
            120deg,
            #08192f 0%,
            #0a1d3a 58%,
            #0d2948 100%
        );
    color: var(--white);
}

.hero::before {
    content: "";
    position: absolute;
    width: 560px;
    height: 560px;
    right: -120px;
    top: -100px;
    border-radius: 50%;
    border: 1px solid rgba(16, 178, 166, 0.14);
    box-shadow:
        0 0 0 70px rgba(16, 178, 166, 0.035),
        0 0 0 140px rgba(16, 178, 166, 0.025);
}

.hero::after {
    content: "";
    position: absolute;
    left: -120px;
    bottom: -190px;
    width: 480px;
    height: 480px;
    background: rgba(16, 178, 166, 0.08);
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
    transform: rotate(-9deg);
}

.hero-container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 780px;
    padding: 90px 0;
}

.eyebrow,
.section-label {
    margin: 0 0 16px;
    color: var(--teal);
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.hero h1 {
    margin: 0;
    max-width: 900px;
    font-size: clamp(3rem, 6vw, 5.4rem);
    line-height: 1.02;
    letter-spacing: -0.045em;
}

.hero-text {
    max-width: 680px;
    margin: 28px 0 0;
    font-size: 1.18rem;
    color: rgba(255, 255, 255, 0.78);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 38px;
}


/* =========================
   BUTTONS
========================= */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 24px;
    border-radius: 11px;
    font-weight: 800;
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        background 0.2s ease;
}

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

.button-primary {
    background: var(--teal);
    color: var(--white);
    box-shadow: 0 12px 30px rgba(16, 178, 166, 0.25);
}

.button-primary:hover {
    background: var(--teal-dark);
}

.button-secondary {
    border: 1px solid rgba(255, 255, 255, 0.32);
    color: var(--white);
    background: rgba(255, 255, 255, 0.05);
}

.button-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}


/* =========================
   PHILOSOPHY
========================= */

.philosophy {
    padding: 110px 0;
    background: var(--white);
}

.philosophy .container {
    max-width: 1050px;
}

.philosophy h2 {
    margin: 0;
    max-width: 980px;
    font-size: clamp(2.4rem, 5vw, 4.4rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
    color: var(--navy);
}

.philosophy p:last-child {
    max-width: 770px;
    margin: 28px 0 0;
    font-size: 1.15rem;
    color: var(--muted);
}


/* =========================
   SOLUTIONS
========================= */

.solutions {
    padding: 110px 0;
    background:
        linear-gradient(
            180deg,
            #f5f8fb 0%,
            #edf3f7 100%
        );
}

.solutions h2 {
    margin: 0;
    max-width: none;
    font-size: clamp(2.3rem, 4vw, 3.8rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
    color: var(--navy);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-top: 55px;
}

.solution-card {
    position: relative;
    min-height: 310px;
    padding: 34px;
    border-radius: var(--radius);
    background: var(--white);
    border: 1px solid rgba(220, 228, 236, 0.9);
    box-shadow: 0 10px 35px rgba(10, 29, 58, 0.06);
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        border-color 0.25s ease;
}

.solution-card:hover {
    transform: translateY(-7px);
    box-shadow: var(--shadow);
    border-color: rgba(16, 178, 166, 0.45);
}

.solution-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(16, 178, 166, 0.1);
    color: var(--teal-dark);
    font-size: 0.82rem;
    font-weight: 900;
}

.solution-card h3 {
    margin: 28px 0 14px;
    font-size: 1.45rem;
    color: var(--navy);
}

.solution-card p {
    margin: 0;
    color: var(--muted);
    font-size: 1rem;
}


/* =========================
   PRODUCT - BASIC
========================= */

.product {
    padding: 110px 0;
    background: var(--white);
}

.product-heading {
    max-width: 760px;
    margin-bottom: 45px;
}

.product-heading h2 {
    margin: 0;
    font-size: clamp(2.4rem, 4vw, 4rem);
    color: var(--navy);
    letter-spacing: -0.035em;
}

.product-heading p:last-child {
    margin-top: 16px;
    color: var(--muted);
    font-size: 1.12rem;
}

.product-showcase {
    display: grid;
    grid-template-columns: 1.45fr 1fr;
    gap: 38px;
    align-items: stretch;
}

.product-image {
    min-height: 460px;
    overflow: hidden;
    border-radius: var(--radius);
    background: #020604;
    box-shadow: var(--shadow);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-content {
    padding: 38px;
    border-radius: var(--radius);
    background: var(--navy);
    color: var(--white);
}

.product-content h3 {
    margin-top: 0;
    font-size: 2rem;
    line-height: 1.15;
}

.product-content p {
    color: rgba(255, 255, 255, 0.74);
}

.product-content ul {
    margin: 28px 0;
    padding-left: 20px;
}

.product-content li {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.86);
}

.product-link {
    display: inline-flex;
    margin-top: 8px;
    color: var(--teal);
    font-weight: 800;
}

.product-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
    margin-top: 24px;
}

.product-gallery img {
    width: 100%;
    height: 330px;
    object-fit: cover;
    border-radius: var(--radius);
    box-shadow: 0 12px 35px rgba(10, 29, 58, 0.1);
}


/* =========================
   CONTACT
========================= */

.contact {
    padding: 95px 0;
    background:
        linear-gradient(
            130deg,
            #0a1d3a 0%,
            #0e3155 100%
        );
    color: var(--white);
}

.contact-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.contact h2 {
    margin: 0;
    font-size: clamp(2.3rem, 4vw, 3.8rem);
    letter-spacing: -0.035em;
}

.contact p:not(.section-label) {
    max-width: 650px;
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.72);
}
.contact .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    min-width: 180px;
    padding: 16px 26px;
    white-space: nowrap;
    font-size: 17px;
    font-weight: 700;
    line-height: 1;
}


/* =========================
   FOOTER
========================= */

.footer {
    padding: 28px 0;
    background: #061426;
    color: rgba(255, 255, 255, 0.62);
}

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

.footer p {
    margin: 0;
    font-size: 0.9rem;
}


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 980px) {

    .navigation {
        display: none;
    }

    .menu-button {
        display: inline-block;
    }

    .hero {
        min-height: 600px;
    }

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

    .solution-card {
        min-height: auto;
    }

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

    .contact-container {
        align-items: flex-start;
        flex-direction: column;
    }
}


@media (max-width: 700px) {

    .container {
        width: min(100% - 28px, 1180px);
    }

    .header-container {
        min-height: 72px;
    }

    .brand-logo {
        width: 190px;
    }

    .hero {
        min-height: auto;
    }

    .hero-content {
        padding: 86px 0 78px;
    }

    .hero h1 {
        font-size: clamp(2.65rem, 13vw, 4rem);
    }

    .hero-text {
        font-size: 1.05rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .button {
        width: 100%;
    }

    .philosophy,
    .solutions,
    .product {
        padding: 78px 0;
    }

    .philosophy h2 {
        font-size: 2.55rem;
    }

    .solutions h2,
    .product-heading h2,
    .contact h2 {
        font-size: 2.45rem;
    }

    .solution-card {
        padding: 28px;
    }

    .product-image {
        min-height: 280px;
    }

    .product-content {
        padding: 28px;
    }

    .product-gallery {
        grid-template-columns: 1fr;
    }

    .product-gallery img {
        height: 250px;
    }

    .contact {
        padding: 72px 0;
    }

    .footer-container {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* =========================
   ECHO-VECTOR V2
========================= */

.product-echo {
    background:
        linear-gradient(
            180deg,
            #ffffff 0%,
            #f5f8fb 100%
        );
}

.product-brand {
    margin-bottom: 46px;
}

.product-brand h2 {
    margin: 0;
    font-size: clamp(2.4rem, 4vw, 4rem);
    color: var(--navy);
    letter-spacing: -0.035em;
    line-height: 1.08;
}

.product-intro {
    max-width: 680px;
    color: var(--muted);
    font-size: 1.12rem;
}


.echo-hero-card {
    display: grid;
    grid-template-columns: 1.3fr 0.9fr;
    overflow: hidden;
    border-radius: 24px;
    background: var(--navy);
    box-shadow: var(--shadow);
}


.echo-main-image {
    min-height: 560px;
    background: #020604;
}

.echo-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}


.echo-copy {
    padding: 48px;
    color: var(--white);
}

.echo-kicker {
    display: inline-block;
    margin-bottom: 18px;
    color: var(--teal);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.echo-copy h3 {
    margin: 0;
    font-size: clamp(2rem, 3.4vw, 3.1rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.echo-copy > p {
    margin-top: 24px;
    color: rgba(255, 255, 255, 0.75);
}


.echo-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.echo-feature {
    padding: 18px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.09);
}

.echo-feature strong {
    display: block;
    margin-bottom: 6px;
    color: var(--white);
}

.echo-feature span {
    display: block;
    color: rgba(255, 255, 255, 0.63);
    font-size: 0.9rem;
    line-height: 1.45;
}


.echo-button {
    margin-top: 34px;
}


.echo-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 28px;
}

.echo-gallery-card {
    margin: 0;
    overflow: hidden;
    border-radius: 18px;
    background: var(--white);
    border: 1px solid var(--border);
    box-shadow: 0 10px 32px rgba(10, 29, 58, 0.07);
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

.echo-gallery-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}


.echo-gallery-card img {
    width: 100%;
    height: 330px;
    object-fit: cover;
}

.echo-gallery-card figcaption {
    padding: 22px;
}

.echo-gallery-card strong {
    display: block;
    color: var(--navy);
    font-size: 1.05rem;
}

.echo-gallery-card span {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 0.94rem;
}


/* =========================
   ECHO RESPONSIVE
========================= */

@media (max-width: 980px) {

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

    .echo-main-image {
        min-height: 420px;
    }

    .echo-features {
        grid-template-columns: 1fr 1fr;
    }
}


@media (max-width: 700px) {

    .echo-copy {
        padding: 28px;
    }

    .echo-main-image {
        min-height: 280px;
    }

    .echo-features {
        grid-template-columns: 1fr;
    }

    .echo-gallery {
        grid-template-columns: 1fr;
    }

    .echo-gallery-card img {
        height: 240px;
    }
}
/* =========================
   MENU MOBILE
========================= */

@media (max-width: 980px) {

    .header-container {
        position: relative;
    }

    .navigation {
        display: none;
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 14px;
        background: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 16px 35px rgba(10, 29, 58, 0.12);
    }

    .navigation.navigation-open {
        display: flex;
    }

    .navigation a {
        padding: 14px 12px;
        border-radius: 8px;
    }

    .navigation a:hover {
        background: rgba(16, 178, 166, 0.08);
    }

    .navigation a::after {
        display: none;
    }

    .menu-button {
        position: relative;
        z-index: 1001;
        width: 44px;
        height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 9px;
    }
}
/* =========================
   MENTIONS LÉGALES
========================= */

.legal-page {
    padding: 90px 0 110px;
    background: #f6f9fc;
    min-height: 100vh;
}

.legal-container {
    max-width: 950px;
}

.legal-page h1 {
    margin: 10px 0 60px;
    color: var(--navy);
    font-size: clamp(2.8rem, 5vw, 4.8rem);
    line-height: 1;
    letter-spacing: -0.04em;
}

.legal-section {
    padding: 35px 0;
    border-top: 1px solid rgba(10, 29, 58, 0.12);
}

.legal-section h2 {
    margin: 0 0 20px;
    color: var(--navy);
    font-size: 1.45rem;
}

.legal-section p {
    margin: 0 0 16px;
    color: #53647a;
    font-size: 1rem;
    line-height: 1.75;
}

.legal-section a {
    color: #0daea8;
    font-weight: 600;
    text-decoration: none;
}

.legal-section a:hover {
    text-decoration: underline;
}

.legal-back {
    display: inline-block;
    margin-top: 40px;
    color: var(--navy);
    font-weight: 700;
    text-decoration: none;
}

.legal-back:hover {
    color: #0daea8;
}


/* VERSION MOBILE */

@media (max-width: 768px) {

    .legal-page {
        padding: 55px 0 75px;
    }

    .legal-page h1 {
        margin-bottom: 35px;
        font-size: 2.7rem;
    }

    .legal-section {
        padding: 28px 0;
    }

    .legal-section h2 {
        font-size: 1.25rem;
    }

    .legal-section p {
        font-size: 0.95rem;
        line-height: 1.7;
    }
}
.footer a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer a:hover {
    color: #16b8b0;
}

.footer-separator {
    margin: 0 10px;
    opacity: 0.45;
}