.signal-hero {
    position: relative;
    min-height: 550px;
    display: flex;
    align-items: center;
    color: #fff;
    background: url("../../assets/images/signal-flags-banner.png") center center / cover no-repeat;
    overflow: hidden;
}

.signal-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient( 90deg, rgba(9, 15, 25, .94) 0%, rgba(9, 15, 25, .72) 48%, rgba(9, 15, 25, .18) 100% );
}

.signal-hero-content {
    position: relative;
    z-index: 2;
    max-width: 850px;
}

    .signal-hero-content > span,
    .section-label {
        display: inline-block;
        margin-bottom: 14px;
        color: #ff2a42;
        font-size: 14px;
        font-weight: 800;
        letter-spacing: 3px;
        text-transform: uppercase;
    }

    .signal-hero-content h1 {
        max-width: 850px;
        margin: 0 0 18px;
        font-size: clamp(40px, 6vw, 72px);
        line-height: 1.04;
        text-transform: uppercase;
    }

    .signal-hero-content p {
        max-width: 700px;
        margin: 0;
        color: rgba(255,255,255,.88);
        font-size: 19px;
        line-height: 1.7;
    }

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
    font-size: 14px;
}

    .breadcrumbs a {
        color: #fff;
        text-decoration: none;
    }

    .breadcrumbs span:last-child {
        color: #ff7181;
    }

.signal-intro {
    padding: 55px 0;
}

.signal-intro-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 70px;
    align-items: center;
}

.signal-main-image {
    position: relative;
}

    .signal-main-image > img {
        display: block;
        width: 100%;
        min-height: 540px;
        object-fit: contain;
        padding: 18px;
        background: #f5f5f5;
        border-radius: 22px;
        box-shadow: 0 24px 65px rgba(14, 24, 42, .14);
    }

.signal-badge {
    position: absolute;
    left: 28px;
    bottom: 28px;
    display: flex;
    flex-direction: column;
    padding: 22px 28px;
    color: #fff;
    background: #d40620;
    border-radius: 14px;
    box-shadow: 0 16px 35px rgba(212, 6, 32, .3);
}

    .signal-badge strong {
        font-size: 38px;
        line-height: 1;
    }

    .signal-badge span {
        margin-top: 6px;
        font-size: 12px;
        font-weight: 700;
        text-transform: uppercase;
    }

.signal-intro-content h2,
.signal-production-content h2 {
    margin: 0 0 24px;
    color: #171a22;
    font-size: clamp(34px, 4vw, 50px);
    line-height: 1.15;
}

.signal-intro-content > p,
.signal-production-content > p {
    color: #60646c;
    font-size: 17px;
    line-height: 1.85;
}

.signal-summary {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin: 30px 0 36px;
}

.signal-summary-item {
    padding: 20px;
    background: #f6f7f9;
    border-left: 4px solid #d40620;
    border-radius: 10px;
}

    .signal-summary-item strong {
        display: block;
        color: #d40620;
        font-size: 30px;
    }

    .signal-summary-item span {
        color: #4f535b;
        font-weight: 700;
    }

.signal-groups-section {
    padding: 95px 0;
    background: #f7f8fa;
}

.signal-group-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 46px;
}

.signal-group-card {
    min-height: 350px;
    padding: 34px 27px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 15px 42px rgba(19, 27, 43, .08);
    transition: transform .25s ease;
}

    .signal-group-card:hover {
        transform: translateY(-8px);
    }

    .signal-group-card.featured {
        color: #fff;
        background: linear-gradient(145deg, #b90018, #e20825);
    }

.signal-group-number {
    color: rgba(212, 6, 32, .15);
    font-size: 66px;
    font-weight: 900;
    line-height: 1;
}

.signal-group-card.featured .signal-group-number {
    color: rgba(255,255,255,.18);
}

.signal-group-card h3 {
    margin: 15px 0 13px;
    color: #1c1f27;
    font-size: 22px;
}

.signal-group-card p {
    color: #666b73;
    line-height: 1.7;
}

.signal-group-card ul {
    margin: 20px 0 0;
    padding-left: 20px;
}

.signal-group-card li {
    margin-bottom: 9px;
}

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

.signal-chart-section {
    padding: 95px 0;
}

.signal-chart-wrap {
    margin-top: 46px;
    padding: 25px;
    background: #f4f5f7;
    border-radius: 22px;
    box-shadow: 0 18px 55px rgba(18, 27, 43, .1);
}

    .signal-chart-wrap img {
        display: block;
        width: 100%;
        max-width: 1100px;
        margin: auto;
    }

.signal-applications-section {
    padding: 95px 0;
    background: #f7f8fa;
}

.signal-application-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 46px;
}

.signal-application-card {
    padding: 34px 27px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 14px 38px rgba(18, 27, 43, .08);
    text-align: center;
    transition: transform .25s ease;
}

    .signal-application-card:hover {
        transform: translateY(-8px);
    }

.signal-icon {
    width: 66px;
    height: 66px;
    display: grid;
    place-items: center;
    margin: 0 auto 20px;
    color: #fff;
    background: #d40620;
    border-radius: 50%;
    font-size: 29px;
}

.signal-application-card h3 {
    margin: 0 0 11px;
    font-size: 20px;
}

.signal-application-card p {
    margin: 0;
    color: #686c74;
    line-height: 1.7;
}

.signal-production-section {
    padding: 95px 0;
    color: #fff;
    background: #111219;
}

.signal-production-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 65px;
    align-items: center;
}

.signal-production-content h2 {
    color: #fff;
}

.signal-production-content > p {
    color: rgba(255,255,255,.72);
}

.signal-production-content ul {
    margin: 30px 0 0;
    padding: 0;
    list-style: none;
}

.signal-production-content li {
    position: relative;
    padding: 13px 0 13px 34px;
    color: rgba(255,255,255,.86);
    border-bottom: 1px solid rgba(255,255,255,.1);
}

    .signal-production-content li::before {
        content: "✓";
        position: absolute;
        left: 0;
        color: #ff2941;
        font-weight: 900;
    }

.signal-production-image img {
    display: block;
    width: 100%;
    height: 490px;
    object-fit: cover;
    border-radius: 22px;
}

.signal-cta {
    padding: 65px 0;
    color: #fff;
    background: linear-gradient(135deg, #b80018, #df0824);
}

.signal-cta-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.signal-cta span {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.signal-cta h2 {
    margin: 8px 0 12px;
    font-size: clamp(30px, 4vw, 45px);
}

.signal-cta p {
    margin: 0;
    color: rgba(255,255,255,.86);
}

.signal-cta-button {
    flex: 0 0 auto;
    padding: 16px 28px;
    color: #d40620;
    background: #fff;
    border-radius: 8px;
    font-weight: 800;
    text-decoration: none;
    text-transform: uppercase;
}

.form-message {
    margin: 5px 0 0;
    color: #fff;
    font-weight: 700;
}

@media (max-width: 1100px) {
    .signal-group-grid,
    .signal-application-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .signal-intro-grid,
    .signal-production-grid {
        grid-template-columns: 1fr;
    }

    .signal-main-image > img {
        min-height: 400px;
    }

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

@media (max-width: 620px) {
    .signal-hero {
        min-height: 390px;
    }

    .signal-intro,
    .signal-groups-section,
    .signal-chart-section,
    .signal-applications-section,
    .signal-production-section {
        padding: 65px 0;
    }

    .signal-group-grid,
    .signal-application-grid,
    .signal-summary {
        grid-template-columns: 1fr;
    }

    .signal-intro-grid,
    .signal-production-grid {
        gap: 38px;
    }

    .signal-main-image > img {
        min-height: 0;
        height: auto;
    }

    .signal-production-image img {
        height: 350px;
    }

    .signal-badge {
        left: 16px;
        bottom: 16px;
    }
}