:root {
    --bg-app: #edf2f8;
    --surface: #ffffff;
    --surface-soft: #f7fbff;
    --ink-strong: #0d2f61;
    --ink-body: #1a3555;
    --ink-muted: #5a6f8b;
    --line: #d6e2ef;
    --brand-navy: #0a2a60;
    --brand-blue: #1c72be;
    --brand-cyan: #79d8e1;
    --brand-cyan-deep: #52bfd0;
    --brand-cloud: #dbf4fa;
    --focus: #5ec7da;
    --danger: #b52a43;
    --success-bg: #d7f3ea;
    --error-bg: #f9dde4;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    font-family: "Poppins", "Segoe UI", "Trebuchet MS", sans-serif;
    background:
        radial-gradient(circle at top left, rgba(121, 216, 225, 0.25), transparent 30%),
        linear-gradient(180deg, #f8fbff 0%, var(--bg-app) 100%);
    color: var(--ink-body);
}

.page-shell {
    width: min(1320px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 18px 0 42px;
}

.site-header {
    position: sticky;
    top: 14px;
    z-index: 30;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
    padding: 14px 20px;
    border: 1px solid rgba(214, 226, 239, 0.9);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.9);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    box-shadow: 0 14px 30px rgba(16, 41, 86, 0.08);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    color: var(--brand-navy);
    text-decoration: none;
    font-weight: 700;
}

.brand-mark img {
    width: 52px;
    height: 52px;
    object-fit: contain;
    flex: 0 0 auto;
}

.brand-mark span {
    font-size: 0.96rem;
    line-height: 1.2;
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    flex: 1;
    min-height: 1px;
}

.site-nav a,
.contact-pill,
.login-pill,
.signup-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    color: var(--brand-navy);
    background: #dce9f7;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
    transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.site-nav a:hover,
.contact-pill:hover,
.login-pill:hover,
.signup-pill:hover {
    background: #cde1f5;
}

.contact-pill {
    border-color: #c2d4e8;
    background: #edf4fb;
}

.login-pill {
    border-color: #c2d4e8;
    background: #edf4fb;
}

.signup-pill {
    background: linear-gradient(135deg, var(--brand-cyan), #a7e8ee);
    border-color: #8ed4de;
}

.site-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.launcher-widget {
    display: none;
    z-index: 70;
}

.launcher-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.launcher-item {
    text-decoration: none;
}

.hero-stage {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(330px, 0.9fr);
    gap: 22px;
    align-items: stretch;
}

.hero-media {
    position: relative;
    min-height: 540px;
    padding: 36px;
    border-radius: 34px;
    overflow: hidden;
    background:
        linear-gradient(110deg, rgba(10, 42, 96, 0.78), rgba(10, 42, 96, 0.2) 40%, rgba(121, 216, 225, 0.12) 100%),
        linear-gradient(135deg, #83d9df 0%, #376ea2 55%, #0a2a60 100%);
    box-shadow: 0 28px 52px rgba(10, 42, 96, 0.18);
}

.hero-media::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, transparent 0 44%, rgba(255, 255, 255, 0.15) 44% 58%, transparent 58%),
        linear-gradient(90deg, rgba(255, 255, 255, 0.14), transparent 38%);
}

.hero-media-overlay {
    position: absolute;
    inset: auto 0 0 0;
    height: 120px;
    background: linear-gradient(180deg, transparent, rgba(10, 42, 96, 0.32));
}

.hero-visual-copy {
    position: relative;
    z-index: 2;
    width: min(540px, 100%);
    color: #ffffff;
}

.hero-kicker {
    margin: 0 0 10px;
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.78);
}

.hero-visual-copy h1 {
    margin: 0;
    font-size: clamp(2.2rem, 4.8vw, 4rem);
    line-height: 1.02;
    font-weight: 700;
}

.hero-lead {
    margin: 18px 0 0;
    max-width: 52ch;
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.88);
}

.hero-watermark {
    position: absolute;
    right: -70px;
    bottom: -70px;
    width: 360px;
    height: 360px;
    opacity: 0.18;
    filter: saturate(0) brightness(2);
}

.hero-watermark img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.hero-track-panel {
    display: grid;
    gap: 18px;
}

.track-panel-card {
    border-radius: 26px;
    border: 1px solid #d6e2ef;
    background: linear-gradient(180deg, #ffffff 0%, var(--surface-soft) 100%);
    box-shadow: 0 18px 34px rgba(12, 43, 77, 0.1);
}

.track-panel-main {
    padding: 28px;
}

.track-panel-main h2,
.track-panel-side h2,
.promo-copy h2,
.promo-contact-card h3,
.section-heading h2,
.service-card h3 {
    margin: 0;
    color: var(--brand-navy);
}

.track-panel-main p,
.track-panel-side p,
.service-card p,
.promo-list,
.faq-item p {
    color: var(--ink-muted);
}

.track-panel-main p,
.track-panel-side p {
    margin: 10px 0 0;
    font-size: 0.92rem;
    line-height: 1.55;
}

.quick-track-form,
.tariff-form,
.promo-contact-card form {
    margin-top: 18px;
    display: grid;
    gap: 10px;
}

.quick-track-label,
.tariff-grid label {
    display: grid;
    gap: 6px;
    font-size: 0.84rem;
    color: var(--ink-muted);
}

.quick-track-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
}

.quick-track-row input,
.tariff-grid input,
.tariff-grid select,
.promo-contact-card input,
.promo-contact-card textarea {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid #c6d8ea;
    border-radius: 14px;
    background: #ffffff;
    color: var(--ink-body);
    font-size: 0.94rem;
}

.tariff-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.tariff-grid select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, #4f9fd5 50%), linear-gradient(135deg, #4f9fd5 50%, transparent 50%);
    background-position: calc(100% - 20px) calc(50% + 1px), calc(100% - 14px) calc(50% + 1px);
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
    padding-right: 42px;
}

.quick-track-row button,
.tariff-form button,
.promo-contact-card button[type="submit"] {
    border: 0;
    border-radius: 14px;
    padding: 0 20px;
    min-height: 52px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 700;
    color: #073661;
    background: linear-gradient(135deg, var(--brand-cyan), var(--brand-blue));
    box-shadow: 0 14px 24px rgba(28, 114, 190, 0.22);
}

.quick-track-result,
.tariff-result {
    min-height: 20px;
    margin: 0;
    font-size: 0.86rem;
}

.quick-track-result.error,
.tariff-result.error {
    color: var(--danger);
}

.track-panel-side {
    padding: 24px 28px;
    background: linear-gradient(180deg, #f7fcff 0%, #ebfbff 100%);
}

.services-band {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: -44px;
    padding: 0 18px;
    position: relative;
    z-index: 4;
}

.service-card {
    padding: 20px 18px 18px;
    border-radius: 22px;
    border: 1px solid #d8e3ef;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 18px 28px rgba(12, 43, 77, 0.08);
}

.service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--brand-cloud), #ffffff);
    color: var(--brand-blue);
    font-weight: 700;
}

.service-card h3 {
    margin-top: 16px;
    font-size: 1rem;
}

.service-card p {
    margin: 10px 0 0;
    font-size: 0.87rem;
    line-height: 1.6;
}

.promo-section {
    margin-top: 42px;
}

.promo-section {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 36px;
    align-items: center;
    padding: 16px 8px;
}

.promo-visual {
    position: relative;
    min-height: 420px;
    display: grid;
    place-items: center;
}

.promo-visual::before,
.promo-visual::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    border: 1px dashed rgba(28, 114, 190, 0.24);
}

.promo-visual::before {
    width: 280px;
    height: 280px;
}

.promo-visual::after {
    width: 360px;
    height: 360px;
}

.device-stack {
    position: relative;
    width: 360px;
    height: 360px;
}

.device-card {
    position: absolute;
    border-radius: 28px;
    border: 1px solid #d7e3ef;
    background: #ffffff;
    box-shadow: 0 22px 40px rgba(10, 42, 96, 0.12);
}

.device-card-back {
    inset: 34px 92px 78px 40px;
    transform: rotate(-8deg);
    background: linear-gradient(180deg, #f8fbff 0%, #e7f4fb 100%);
}

.device-card-front {
    inset: 20px 74px 44px 64px;
    padding: 16px;
}

.device-screen-header {
    height: 12px;
    width: 42%;
    border-radius: 999px;
    background: #d6e7f6;
}

.device-screen-line {
    height: 10px;
    margin-top: 12px;
    border-radius: 999px;
    background: #e8f1fa;
}

.device-screen-line.short {
    width: 68%;
}

.device-screen-map {
    height: 180px;
    margin-top: 16px;
    border-radius: 22px;
    background:
        linear-gradient(135deg, rgba(121, 216, 225, 0.18), rgba(28, 114, 190, 0.16)),
        repeating-linear-gradient(45deg, #f5f9fc 0 16px, #e8f0f8 16px 32px);
}

.promo-qr {
    position: absolute;
    right: 12px;
    bottom: 28px;
    width: 88px;
    height: 88px;
    border-radius: 12px;
    border: 8px solid #ffffff;
    background:
        linear-gradient(90deg, #ff6666 50%, transparent 50%),
        linear-gradient(#ff6666 50%, transparent 50%),
        repeating-linear-gradient(90deg, #ff4f4f 0 8px, #ffffff 8px 16px),
        repeating-linear-gradient(#ff4f4f 0 8px, #ffffff 8px 16px);
    background-size: 16px 16px, 16px 16px, 16px 16px, 16px 16px;
    box-shadow: 0 14px 26px rgba(255, 79, 79, 0.24);
}

.section-kicker {
    margin: 0 0 8px;
    color: var(--brand-blue);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.promo-copy h2 {
    font-size: clamp(1.9rem, 3vw, 2.9rem);
    line-height: 1.12;
}

.promo-list {
    margin: 20px 0 0;
    padding-left: 20px;
    display: grid;
    gap: 10px;
    font-size: 0.95rem;
    line-height: 1.65;
}

.promo-contact-card {
    margin-top: 24px;
    padding: 22px;
    border: 1px solid #d6e2ef;
    border-radius: 24px;
    background: linear-gradient(165deg, #ffffff, #eef9ff);
    box-shadow: 0 18px 30px rgba(16, 41, 86, 0.08);
}

.promo-contact-card h3 {
    font-size: 1.1rem;
}

.promo-contact-card input,
.promo-contact-card textarea {
    font-family: inherit;
}

.promo-contact-card textarea {
    min-height: 110px;
    resize: vertical;
}

.flash-list {
    margin: 0 0 10px;
    padding: 0;
    list-style: none;
}

.flash {
    border-radius: 12px;
    padding: 10px 12px;
    border: 1px solid transparent;
    font-size: 0.88rem;
}

.flash.success {
    background: var(--success-bg);
    border-color: #8dd0b8;
    color: #13533e;
}

.flash.error {
    background: var(--error-bg);
    border-color: #e098a8;
    color: #7f1f35;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
}

@media (max-width: 1180px) {
    .site-header {
        justify-content: center;
        align-items: center;
        gap: 12px;
    }

    .site-nav,
    .site-actions {
        display: none;
    }

    .launcher-widget {
        position: relative;
        display: block;
        width: min(360px, 100%);
        z-index: 70;
    }

    .launcher-widget summary {
        list-style: none;
        cursor: pointer;
        padding: 12px 16px;
        border: 1px solid rgba(198, 216, 234, 0.9);
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.92);
        color: var(--brand-navy);
        text-align: center;
        font-size: 0.9rem;
        font-weight: 700;
        -webkit-user-select: none;
        user-select: none;
        box-shadow: 0 8px 20px rgba(10, 42, 96, 0.1);
    }

    .launcher-widget summary::-webkit-details-marker {
        display: none;
    }

    .launcher-widget[open] summary {
        border-bottom-left-radius: 10px;
        border-bottom-right-radius: 10px;
    }

    .hero-stage,
    .promo-section {
        grid-template-columns: 1fr;
    }

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

    .services-band {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        margin-top: 18px;
        padding: 0;
    }

    .launcher-nav {
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        right: 0;
        z-index: 90;
        width: 100%;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
        padding: 10px;
        border: 1px solid rgba(198, 216, 234, 0.9);
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.92);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
        box-shadow: 0 12px 28px rgba(10, 42, 96, 0.14);
    }

    .launcher-item {
        min-height: 58px;
        border-radius: 12px;
        border: 1px solid #d8e5f2;
        background: #eff5fc;
        color: var(--brand-navy);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        font-size: 0.8rem;
        font-weight: 700;
    }

    .launcher-item-kicker {
        font-size: 0.67rem;
        font-weight: 600;
        color: var(--brand-blue);
        opacity: 0.95;
    }

    .launcher-item-account {
        background: linear-gradient(135deg, var(--brand-cyan), #a7e8ee);
        border-color: #8ed4de;
    }
}

@media (max-width: 860px) {
    .page-shell {
        width: min(100vw - 20px, 1320px);
        padding-top: 10px;
        padding-bottom: 42px;
    }

    .site-header {
        position: relative;
        z-index: 60;
        overflow: visible;
        flex-direction: column;
        align-items: stretch;
    }

    .brand-mark {
        justify-content: center;
    }

    .hero-media {
        min-height: 420px;
        padding: 24px;
        border-radius: 26px;
    }

    .hero-visual-copy h1 {
        font-size: clamp(1.8rem, 8vw, 2.6rem);
    }

    .hero-track-panel,
    .services-band,
    .tariff-grid {
        grid-template-columns: 1fr;
    }

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

    .quick-track-row button,
    .tariff-form button,
    .promo-contact-card button[type="submit"] {
        width: 100%;
    }

    .promo-visual {
        min-height: 320px;
    }

    .device-stack {
        width: 280px;
        height: 280px;
    }

    .device-card-back {
        inset: 28px 68px 52px 20px;
    }

    .device-card-front {
        inset: 18px 52px 34px 38px;
    }

    .launcher-widget {
        width: 100%;
    }

    .launcher-nav {
        grid-template-columns: 1fr;
        gap: 6px;
        padding: 8px;
        border-radius: 12px;
    }

    .launcher-item {
        min-height: 52px;
        font-size: 0.75rem;
    }

    .launcher-item-kicker {
        font-size: 0.62rem;
    }
}