:root {
    --background: #090909;
    --background-soft: #111111;
    --background-card: #151515;

    --text: #f5f5f5;
    --text-soft: #a8a8a8;

    --orange: #ff6a00;
    --orange-light: #ff8a32;
    --orange-dark: #cf5100;

    --border: rgba(255, 255, 255, 0.08);

    --container-width: 1180px;
    --header-height: 82px;

    --shadow:
        0 24px 70px rgba(0, 0, 0, 0.38);
}


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

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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;

    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    background:
        radial-gradient(
            circle at 80% 10%,
            rgba(255, 106, 0, 0.08),
            transparent 35%
        ),
        var(--background);

    color: var(--text);

    overflow-x: hidden;
}

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

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.container {
    width: min(
        calc(100% - 40px),
        var(--container-width)
    );

    margin-inline: auto;
}


/* =========================
   BACKGROUND EFFECTS
========================= */

.background-glow {
    position: fixed;

    width: 500px;
    height: 500px;

    border-radius: 50%;

    background: rgba(255, 106, 0, 0.06);

    filter: blur(120px);

    pointer-events: none;

    z-index: -1;
}

.glow-one {
    top: -150px;
    right: -180px;
}

.glow-two {
    bottom: -220px;
    left: -200px;

    opacity: 0.55;
}


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

.header {
    position: sticky;
    top: 0;

    height: var(--header-height);

    display: flex;
    align-items: center;

    background: rgba(9, 9, 9, 0.82);

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    border-bottom: 1px solid var(--border);

    z-index: 1000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;

    gap: 13px;
}

.brand-text {
    display: flex;
    align-items: center;

    font-weight: 800;
    letter-spacing: -0.03em;

    font-size: 1.25rem;
}

.brand-main {
    color: white;
}

.brand-accent {
    color: var(--orange);

    margin-left: 4px;
}

.brand-icon {
    position: relative;

    width: 34px;
    height: 34px;

    display: flex;
    align-items: center;
    justify-content: center;

    border:
        1px solid
        rgba(255, 106, 0, 0.35);

    background:
        linear-gradient(
            145deg,
            rgba(255, 106, 0, 0.16),
            rgba(255, 106, 0, 0.03)
        );

    border-radius: 10px;
}

.brand-icon::after {
    content: "";

    width: 7px;
    height: 7px;

    border-radius: 50%;

    background: var(--orange);
}

.fan {
    position: absolute;

    width: 11px;
    height: 5px;

    border-radius: 10px;

    background: var(--orange);
}

.fan-one {
    transform:
        translateY(-7px)
        rotate(90deg);
}

.fan-two {
    transform:
        translate(-6px, 4px)
        rotate(-30deg);
}

.fan-three {
    transform:
        translate(6px, 4px)
        rotate(30deg);
}

.header-contact {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 44px;

    padding: 0 20px;

    color: white;

    border:
        1px solid
        rgba(255, 255, 255, 0.12);

    border-radius: 100px;

    font-size: 0.94rem;
    font-weight: 600;

    transition:
        border-color 0.25s ease,
        background 0.25s ease;
}

.header-contact:hover {
    border-color:
        rgba(255, 106, 0, 0.6);

    background:
        rgba(255, 106, 0, 0.07);
}


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

.hero {
    min-height:
        calc(
            100vh - var(--header-height)
        );

    display: flex;
    align-items: center;

    padding: 70px 0 90px;
}

.hero-container {
    display: grid;

    grid-template-columns:
        minmax(0, 1.08fr)
        minmax(380px, 0.92fr);

    gap: 80px;

    align-items: center;
}

.hero-content {
    max-width: 680px;
}

.status-badge {
    width: fit-content;

    display: flex;
    align-items: center;

    gap: 9px;

    margin-bottom: 26px;

    padding: 9px 13px;

    color: #d5d5d5;

    border:
        1px solid
        rgba(255, 255, 255, 0.1);

    border-radius: 100px;

    background:
        rgba(255, 255, 255, 0.035);

    font-size: 0.83rem;
    font-weight: 600;
}

.status-dot {
    width: 8px;
    height: 8px;

    border-radius: 50%;

    background: var(--orange);

    box-shadow:
        0 0 0 5px
        rgba(255, 106, 0, 0.12);

    animation:
        pulseDot 2s infinite;
}

@keyframes pulseDot {

    0%,
    100% {
        box-shadow:
            0 0 0 4px
            rgba(255, 106, 0, 0.1);
    }

    50% {
        box-shadow:
            0 0 0 9px
            rgba(255, 106, 0, 0);
    }
}

.eyebrow,
.small-title {
    color: var(--orange);

    font-size: 0.76rem;
    font-weight: 800;

    letter-spacing: 0.16em;
}

.hero h1 {
    margin-top: 15px;

    font-size:
        clamp(
            3.4rem,
            7vw,
            6.6rem
        );

    line-height: 0.94;

    letter-spacing: -0.065em;

    max-width: 760px;
}

.hero h1 span {
    display: block;

    color: var(--orange);

    margin-top: 13px;
}

.hero-description {
    max-width: 620px;

    margin-top: 30px;

    color: var(--text-soft);

    font-size: 1.1rem;

    line-height: 1.75;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;

    gap: 12px;

    margin-top: 35px;
}

.button {
    min-height: 52px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    gap: 10px;

    padding: 0 24px;

    border-radius: 13px;

    font-size: 0.95rem;
    font-weight: 700;

    transition:
        transform 0.2s ease,
        background 0.2s ease,
        border-color 0.2s ease;
}

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

.button-primary {
    color: #111;

    background:
        linear-gradient(
            135deg,
            var(--orange-light),
            var(--orange)
        );

    box-shadow:
        0 12px 30px
        rgba(255, 106, 0, 0.18);
}

.button-primary:hover {
    background:
        linear-gradient(
            135deg,
            #ff984c,
            #ff7410
        );
}

.button-secondary {
    color: white;

    border:
        1px solid
        rgba(255, 255, 255, 0.12);

    background:
        rgba(255, 255, 255, 0.035);
}

.button-secondary:hover {
    border-color:
        rgba(255, 106, 0, 0.5);
}

.button-arrow {
    font-size: 1.2rem;
}

.contact-line {
    margin-top: 28px;

    color: #727272;

    font-size: 0.88rem;
}

.contact-line a {
    color: #cfcfcf;

    transition: color 0.2s ease;
}

.contact-line a:hover {
    color: var(--orange);
}


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

.hero-visual {
    position: relative;

    display: flex;
    justify-content: center;
}

.thermo-card {
    position: relative;

    width: min(100%, 470px);

    min-height: 520px;

    padding: 30px;

    border:
        1px solid
        rgba(255, 255, 255, 0.09);

    border-radius: 30px;

    background:
        linear-gradient(
            145deg,
            #181818,
            #101010
        );

    box-shadow: var(--shadow);

    overflow: hidden;
}

.thermo-card::before {
    content: "";

    position: absolute;

    width: 220px;
    height: 220px;

    top: -90px;
    right: -70px;

    border-radius: 50%;

    background:
        rgba(255, 106, 0, 0.13);

    filter: blur(60px);
}

.card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;

    margin-bottom: 55px;

    position: relative;

    z-index: 2;
}

.card-label {
    color: #909090;

    font-size: 0.75rem;
    font-weight: 700;

    letter-spacing: 0.14em;
}

.card-status {
    padding: 7px 10px;

    border-radius: 8px;

    background:
        rgba(255, 106, 0, 0.1);

    color: var(--orange);

    font-size: 0.68rem;
    font-weight: 800;

    letter-spacing: 0.12em;
}

.unit {
    position: relative;

    width: 100%;

    min-height: 250px;

    padding: 22px;

    background:
        linear-gradient(
            145deg,
            #e9e9e9,
            #cfcfcf
        );

    border-radius: 17px;

    box-shadow:
        0 16px 40px
        rgba(0, 0, 0, 0.4);

    transform:
        perspective(800px)
        rotateY(-5deg)
        rotateX(3deg);

    transition:
        transform 0.3s ease;
}

.thermo-card:hover .unit {
    transform:
        perspective(800px)
        rotateY(0deg)
        rotateX(0deg)
        translateY(-3px);
}

.unit-display {
    position: absolute;

    top: 20px;
    left: 22px;

    color: #373737;

    font-size: 0.65rem;
    font-weight: 900;

    letter-spacing: 0.12em;
}

.unit-grille {
    width: 166px;
    height: 166px;

    margin: 26px auto 15px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 50%;

    border: 11px solid #bababa;

    background:
        repeating-radial-gradient(
            circle,
            #373737 0 2px,
            #525252 3px 5px
        );

    box-shadow:
        inset 0 0 18px
        rgba(0, 0, 0, 0.35);
}

.fan-container {
    position: relative;

    width: 100px;
    height: 100px;

    animation:
        fanSpin 12s
        linear infinite;
}

@keyframes fanSpin {
    to {
        transform: rotate(360deg);
    }
}

.fan-blade {
    position: absolute;

    width: 44px;
    height: 25px;

    left: 28px;
    top: 38px;

    border-radius:
        100% 10%
        100% 10%;

    background:
        linear-gradient(
            135deg,
            #444,
            #252525
        );

    transform-origin: 22px 12px;
}

.blade-1 {
    transform:
        translateY(-31px);
}

.blade-2 {
    transform:
        translateX(31px)
        rotate(90deg);
}

.blade-3 {
    transform:
        translateY(31px)
        rotate(180deg);
}

.blade-4 {
    transform:
        translateX(-31px)
        rotate(270deg);
}

.fan-center {
    position: absolute;

    width: 27px;
    height: 27px;

    top: 36px;
    left: 36px;

    border-radius: 50%;

    background: #242424;

    border: 5px solid #555;
}

.unit-bottom-line {
    width: 80%;

    height: 4px;

    margin: 0 auto;

    background: #b9b9b9;

    border-radius: 100px;
}

.air-lines {
    margin-top: 42px;

    display: flex;
    flex-direction: column;

    gap: 10px;

    align-items: center;
}

.air-lines span {
    display: block;

    height: 2px;

    border-radius: 100px;

    background:
        linear-gradient(
            90deg,
            transparent,
            var(--orange),
            transparent
        );

    opacity: 0.65;

    animation:
        airPulse 2.4s
        ease-in-out infinite;
}

.air-lines span:nth-child(1) {
    width: 50%;
}

.air-lines span:nth-child(2) {
    width: 68%;

    animation-delay: 0.25s;
}

.air-lines span:nth-child(3) {
    width: 38%;

    animation-delay: 0.5s;
}

@keyframes airPulse {

    0%,
    100% {
        opacity: 0.2;

        transform:
            scaleX(0.8);
    }

    50% {
        opacity: 0.85;

        transform:
            scaleX(1);
    }
}


/* =========================
   CONSTRUCTION
========================= */

.construction-section {
    padding-bottom: 100px;
}

.construction-card {
    display: grid;

    grid-template-columns:
        80px 1fr;

    gap: 28px;

    align-items: center;

    padding: 35px;

    border:
        1px solid
        rgba(255, 106, 0, 0.16);

    border-radius: 22px;

    background:
        linear-gradient(
            135deg,
            rgba(255, 106, 0, 0.075),
            rgba(255, 255, 255, 0.02)
        );
}

.construction-icon {
    width: 70px;
    height: 70px;

    display: flex;
    flex-direction: column;

    align-items: center;
    justify-content: center;

    gap: 7px;

    border-radius: 18px;

    background:
        rgba(255, 106, 0, 0.1);
}

.construction-icon span {
    width: 37px;
    height: 5px;

    border-radius: 100px;

    background: var(--orange);
}

.construction-icon span:nth-child(2) {
    width: 24px;
}

.construction-card h2 {
    margin-top: 9px;

    font-size:
        clamp(
            1.6rem,
            3vw,
            2.3rem
        );

    letter-spacing: -0.035em;
}

.construction-card p:last-child {
    margin-top: 10px;

    max-width: 720px;

    color: var(--text-soft);

    line-height: 1.7;
}


/* =========================
   SERVICES
========================= */

.services {
    padding:
        100px 0 120px;

    border-top:
        1px solid
        var(--border);
}

.section-heading {
    max-width: 760px;

    margin-bottom: 50px;
}

.section-heading h2 {
    margin-top: 13px;

    font-size:
        clamp(
            2.2rem,
            5vw,
            4rem
        );

    line-height: 1.05;

    letter-spacing: -0.05em;
}

.section-heading > p:last-child {
    margin-top: 20px;

    color: var(--text-soft);

    font-size: 1.05rem;

    line-height: 1.7;
}

.services-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 16px;
}

.service-card {
    min-height: 260px;

    padding: 29px;

    border:
        1px solid
        var(--border);

    border-radius: 20px;

    background:
        var(--background-card);

    transition:
        transform 0.25s ease,
        border-color 0.25s ease;
}

.service-card:hover {
    transform:
        translateY(-5px);

    border-color:
        rgba(255, 106, 0, 0.3);
}

.service-number {
    margin-bottom: 50px;

    color: var(--orange);

    font-size: 0.75rem;
    font-weight: 800;

    letter-spacing: 0.12em;
}

.service-card h3 {
    font-size: 1.25rem;

    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-soft);

    line-height: 1.65;

    font-size: 0.95rem;
}


/* =========================
   CTA
========================= */

.cta-section {
    padding:
        0 0 120px;
}

.cta-card {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 40px;

    padding: 50px;

    border-radius: 26px;

    background:
        linear-gradient(
            135deg,
            #171717,
            #101010
        );

    border:
        1px solid
        rgba(255, 255, 255, 0.08);

    box-shadow: var(--shadow);
}

.cta-card h2 {
    margin-top: 12px;

    font-size:
        clamp(
            1.8rem,
            4vw,
            3rem
        );

    letter-spacing: -0.04em;
}

.cta-card p:last-child {
    margin-top: 10px;

    color: var(--text-soft);
}


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

.footer {
    border-top:
        1px solid
        var(--border);

    padding:
        30px 0 40px;
}

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

    gap: 20px;
}

.footer-brand {
    font-weight: 800;

    letter-spacing: -0.02em;
}

.footer-rm {
    color: white;
}

.footer-thermo {
    color: var(--orange);
}

.footer p {
    color: #666;

    font-size: 0.83rem;
}


/* =========================
   TABLETTE
========================= */

@media (max-width: 900px) {

    .hero {
        padding:
            60px 0 80px;
    }

    .hero-container {
        grid-template-columns: 1fr;

        gap: 60px;
    }

    .hero-content {
        max-width: 720px;
    }

    .hero-visual {
        justify-content: flex-start;
    }

    .thermo-card {
        width:
            min(
                100%,
                520px
            );
    }

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

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

    .service-number {
        margin-bottom: 30px;
    }

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


/* =========================
   MOBILE
========================= */

@media (max-width: 600px) {

    :root {
        --header-height: 74px;
    }

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

    .brand-text {
        font-size: 1.08rem;
    }

    .brand-icon {
        width: 32px;
        height: 32px;
    }

    .header-contact {
        min-height: 40px;

        padding:
            0 14px;

        font-size: 0.82rem;
    }

    .hero {
        min-height: auto;

        padding:
            52px 0 65px;
    }

    .hero h1 {
        font-size:
            clamp(
                3rem,
                15vw,
                4.6rem
            );
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .contact-line {
        line-height: 1.7;
    }

    .contact-line span {
        display: block;
    }

    .thermo-card {
        min-height: auto;

        padding: 22px;

        border-radius: 23px;
    }

    .card-top {
        margin-bottom: 40px;
    }

    .unit {
        min-height: 220px;
    }

    .unit-grille {
        width: 145px;
        height: 145px;
    }

    .construction-section {
        padding-bottom: 75px;
    }

    .construction-card {
        grid-template-columns: 1fr;

        padding: 25px;
    }

    .services {
        padding:
            75px 0 90px;
    }

    .section-heading {
        margin-bottom: 35px;
    }

    .cta-section {
        padding-bottom: 90px;
    }

    .cta-card {
        padding: 30px 24px;
    }

    .footer-container {
        flex-direction: column;

        align-items: flex-start;
    }
}


/* =========================
   ACCESSIBILITÉ
========================= */

@media (
    prefers-reduced-motion:
    reduce
) {

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;

        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;

        transition-duration: 0.01ms !important;
    }
}