:root {
    --color-ink: #111827;
    --color-muted: #5f6b7a;
    --color-line: #dce4ee;
    --color-soft: #f4f7fb;
    --color-white: #ffffff;
    --color-dark: #071b22;
    --color-dark-2: #0d2a35;
    --color-red: #c92835;
    --color-blue: #1f63b7;
    --shadow-soft: 0 18px 45px rgba(16, 36, 52, 0.12);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--color-soft);
    color: var(--color-ink);
    font-family: Arial, "Helvetica Neue", sans-serif;
    font-size: 16px;
    line-height: 1.6;
}

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

.container {
    width: min(1160px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid rgba(220, 228, 238, 0.86);
    backdrop-filter: blur(14px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    gap: 28px;
}

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

.brand img {
    display: block;
    width: auto;
    height: 44px;
    object-fit: contain;
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 6px 18px;
}

.main-nav a {
    color: #2c3745;
    font-size: 15px;
    font-weight: 700;
    transition: color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus {
    color: var(--color-blue);
}

.nav-login {
    padding: 9px 14px;
    border: 1px solid var(--color-line);
    border-radius: 999px;
    background: var(--color-white);
}

.nav-login:hover,
.nav-login:focus {
    border-color: rgba(31, 99, 183, 0.45);
}

.section {
    padding: 86px 0;
}

.hero {
    overflow: hidden;
    background:
        radial-gradient(circle at 86% 10%, rgba(31, 99, 183, 0.22), transparent 34%),
        radial-gradient(circle at 10% 18%, rgba(201, 40, 53, 0.16), transparent 28%),
        linear-gradient(135deg, #f9fbfe 0%, #edf4fa 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    gap: 42px;
    align-items: center;
    min-height: 540px;
}

.section-kicker {
    margin: 0 0 12px;
    color: var(--color-red);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 820px;
    margin-bottom: 22px;
    font-size: clamp(38px, 6vw, 68px);
    line-height: 1.06;
    letter-spacing: 0;
}

h2 {
    margin-bottom: 18px;
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.12;
    letter-spacing: 0;
}

h3 {
    margin-bottom: 10px;
    font-size: 20px;
    line-height: 1.25;
}

.hero-lead,
.section-heading p,
.ecosystem-heading p,
.cta-box p {
    color: var(--color-muted);
    font-size: 18px;
}

.hero-lead {
    max-width: 720px;
    margin-bottom: 32px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 13px 22px;
    border: 0;
    border-radius: 999px;
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    line-height: 1.2;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
    background: var(--color-red);
    color: var(--color-white);
    box-shadow: 0 14px 28px rgba(201, 40, 53, 0.22);
}

.btn-primary:hover,
.btn-primary:focus {
    background: #b4212d;
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-blue);
    border: 1px solid var(--color-line);
}

.btn-form {
    width: 100%;
    border: 0;
    background: var(--color-blue);
    color: var(--color-white);
    cursor: pointer;
    box-shadow: 0 14px 28px rgba(31, 99, 183, 0.2);
}

.btn-form:hover,
.btn-form:focus {
    background: #19549c;
}

.hero-panel {
    display: grid;
    gap: 14px;
    padding: 26px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 28px;
    background: linear-gradient(145deg, var(--color-dark), var(--color-dark-2));
    box-shadow: var(--shadow-soft);
}

.hero-tab {
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.07);
    overflow: hidden;
}

.hero-tab-button {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    min-height: 58px;
    padding: 16px 18px;
    border: 0;
    background: transparent;
    color: var(--color-white);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    text-align: left;
}

.hero-tab-button::after {
    content: "+";
    display: grid;
    width: 28px;
    height: 28px;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.86);
}

.hero-tab.is-open .hero-tab-button::after {
    content: "−";
}

.hero-tab-content {
    display: none;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    padding: 0 18px 18px;
}

.hero-tab.is-open .hero-tab-content {
    display: grid;
}

.hero-tab-content p {
    margin: 0;
    color: rgba(255, 255, 255, 0.72);
    font-size: 15px;
    line-height: 1.4;
}

.hero-tab-icon {
    display: grid;
    width: 52px;
    height: 52px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    background:
        linear-gradient(145deg, rgba(31, 99, 183, 0.36), rgba(201, 40, 53, 0.18)),
        rgba(255, 255, 255, 0.08);
}

.hero-tab-icon img {
    display: block;
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.section-heading {
    max-width: 850px;
    margin-bottom: 34px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.info-card,
.audience-card {
    min-height: 100%;
    padding: 26px;
    border: 1px solid var(--color-line);
    border-radius: var(--radius);
    background: var(--color-white);
    box-shadow: 0 12px 30px rgba(16, 36, 52, 0.07);
}

.info-card {
    border-top: 4px solid var(--color-blue);
}

.info-card:nth-child(even) {
    border-top-color: var(--color-red);
}

.info-card p {
    margin-bottom: 0;
    color: var(--color-muted);
}

.ecosystem {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        radial-gradient(circle at 84% 22%, rgba(31, 99, 183, 0.24), transparent 30%),
        radial-gradient(circle at 18% 72%, rgba(201, 40, 53, 0.18), transparent 28%),
        linear-gradient(135deg, #06161d, #0b252e 62%, #07161d);
    background-size: 46px 46px, 46px 46px, auto, auto, auto;
    color: var(--color-white);
}

.ecosystem .section-kicker {
    color: #ff6f7a;
}

.ecosystem-heading {
    max-width: 820px;
    margin-bottom: 38px;
}

.ecosystem-heading p,
.ecosystem-note {
    color: rgba(255, 255, 255, 0.72);
}

.service-cloud {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    align-items: stretch;
}

.service-tile {
    position: relative;
    display: flex;
    min-height: 300px;
    flex-direction: column;
    justify-content: space-between;
    gap: 22px;
    padding: 34px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 26px;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.055)),
        rgba(255, 255, 255, 0.04);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
    transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.service-tile:hover,
.service-tile:focus {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.36);
    background:
        linear-gradient(145deg, rgba(31, 99, 183, 0.28), rgba(201, 40, 53, 0.12)),
        rgba(255, 255, 255, 0.08);
}

.service-tile strong {
    max-width: 78%;
    font-size: clamp(25px, 3.2vw, 36px);
    line-height: 1.08;
}

.service-tile > span:not(.service-mark) {
    color: rgba(255, 255, 255, 0.75);
    font-size: 17px;
}

.service-tile em {
    color: #ffffff;
    font-style: normal;
    font-weight: 800;
}

.service-mark {
    position: absolute;
    top: 26px;
    right: 26px;
    display: grid;
    width: 50px;
    height: 50px;
    place-items: center;
}

.service-mark img {
    display: block;
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.ecosystem-note {
    margin: 24px 0 0;
    font-size: 15px;
}

.interface-section {
    background:
        radial-gradient(circle at 8% 12%, rgba(31, 99, 183, 0.1), transparent 28%),
        radial-gradient(circle at 88% 20%, rgba(201, 40, 53, 0.08), transparent 30%),
        linear-gradient(135deg, #ffffff, #f3f7fb);
}

.interface-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
    gap: 42px;
    align-items: center;
}

.interface-copy {
    min-width: 0;
}

.interface-lead {
    max-width: 760px;
    color: var(--color-muted);
    font-size: 18px;
}

.interface-benefits {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 28px 0 22px;
}

.interface-card {
    padding: 20px;
    border: 1px solid var(--color-line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: 0 12px 30px rgba(16, 36, 52, 0.07);
}

.interface-card h3 {
    margin-bottom: 8px;
    font-size: 18px;
}

.interface-card-metric h3 {
    color: var(--color-red);
    font-size: clamp(22px, 2.2vw, 32px);
    line-height: 1.08;
}

.interface-card p {
    margin-bottom: 0;
    color: var(--color-muted);
    font-size: 15px;
}

.interface-card .interface-card-label {
    margin-bottom: 8px;
    color: var(--color-ink);
    font-size: 16px;
    font-weight: 900;
}

.interface-card-wide {
    grid-column: 1 / -1;
    border-left: 4px solid var(--color-blue);
}

.interface-note {
    margin-bottom: 0;
    padding: 18px 20px;
    border-left: 4px solid var(--color-red);
    border-radius: 16px;
    background: #ffffff;
    color: var(--color-ink);
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(16, 36, 52, 0.06);
}

.interface-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 24px;
}

.interface-preview {
    min-width: 0;
    box-shadow: 0 28px 70px rgba(16, 36, 52, 0.16);
    border-radius: 28px;
}

.interface-preview img {
    display: block;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 28px 46px rgba(16, 36, 52, 0.18));
}

.calculator-section {
    background: linear-gradient(135deg, #ffffff, #f3f7fb);
}

.calculator-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.78fr) minmax(360px, 0.82fr);
    gap: 42px;
    align-items: center;
}

.calculator-grid .section-heading {
    margin-bottom: 0;
}

.calculator-grid .section-heading .btn {
    margin-top: 14px;
}

.calculator-objects {
    display: block;
    width: min(92%, 430px);
    margin-top: 34px;
    margin-left: -26px;
    object-fit: contain;
    pointer-events: none;
}

.calculator-card {
    display: grid;
    gap: 24px;
    padding: 34px;
    border: 1px solid var(--color-line);
    border-radius: 28px;
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.calculator-topline,
.calculator-result {
    display: grid;
    gap: 8px;
}

.calculator-topline span,
.calculator-result span {
    color: var(--color-muted);
    font-weight: 800;
}

.calculator-topline strong {
    color: var(--color-ink);
    font-size: clamp(34px, 5vw, 54px);
    line-height: 1;
}

.calculator-range {
    width: 100%;
    accent-color: var(--color-blue);
}

.calculator-result {
    padding: 24px;
    border-radius: 22px;
    background: linear-gradient(145deg, var(--color-dark), var(--color-dark-2));
    color: var(--color-white);
}

.calculator-result strong {
    font-size: clamp(38px, 6vw, 64px);
    line-height: 1;
}

.calculator-result small {
    color: rgba(255, 255, 255, 0.76);
    font-size: 15px;
    font-weight: 800;
}

.calculator-rules {
    padding: 20px;
    border: 1px solid var(--color-line);
    border-radius: 18px;
    background: #f7fafc;
}

.calculator-rules p {
    margin-bottom: 10px;
    font-weight: 800;
}

.calculator-rules ul {
    display: grid;
    gap: 7px;
    margin: 0;
    padding-left: 20px;
    color: var(--color-muted);
}

.calculator-note {
    margin: 0;
    padding: 14px 16px;
    border: 1px solid rgba(31, 99, 183, 0.2);
    border-radius: 16px;
    background: rgba(31, 99, 183, 0.08);
    color: var(--color-blue);
    font-weight: 800;
}

.feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
    position: relative;
    display: flex;
    min-height: 320px;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
    padding: 22px;
}

.feature-card img {
    position: absolute;
    top: 0;
    right: 14px;
    width: min(62%, 210px);
    height: min(62%, 210px);
    object-fit: contain;
    opacity: 0.88;
    pointer-events: none;
    transform: translate(8%, -14%);
}

.feature-card h3 {
    position: relative;
    z-index: 1;
    width: 100%;
    margin: 0;
    padding: 18px 18px 6px;
    border-radius: 18px 18px 0 0;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(24px);
    box-shadow: 0 -10px 30px rgba(255, 255, 255, 0.18);
}

.feature-card p {
    position: relative;
    z-index: 1;
    width: 100%;
    padding: 0 18px 18px;
    border-radius: 0 0 18px 18px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(24px);
    box-shadow: 0 18px 30px rgba(16, 36, 52, 0.08);
}

.feature-card:first-child img {
    top: 12px;
    width: min(54%, 180px);
    height: min(54%, 180px);
    transform: translate(8%, -6%);
}

.training-section {
    background:
        radial-gradient(circle at 12% 18%, rgba(201, 40, 53, 0.08), transparent 28%),
        radial-gradient(circle at 88% 28%, rgba(31, 99, 183, 0.12), transparent 30%),
        linear-gradient(135deg, #ffffff, #f2f7fb);
}

.training-grid {
    display: grid;
    gap: 28px;
    padding: 46px;
    border: 1px solid var(--color-line);
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: var(--shadow-soft);
}

.training-header {
    max-width: 920px;
}

.training-title {
    margin-bottom: 0;
    color: var(--color-ink);
    text-align: left;
}

.training-copy p {
    max-width: 900px;
    margin: 0 auto;
    color: var(--color-muted);
    font-size: 18px;
    text-align: center;
}

.training-list {
    position: relative;
    z-index: 2;
    display: grid;
    width: min(100% - 48px, 1040px);
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin: -82px auto 0;
    padding: 0;
    list-style: none;
}

.training-list li {
    position: relative;
    min-height: 112px;
    padding: 20px 18px 20px 44px;
    border: 1px solid rgba(255, 255, 255, 0.48);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(24px);
    color: var(--color-ink);
    font-weight: 800;
    box-shadow: 0 18px 38px rgba(16, 36, 52, 0.14);
    transform: translateY(0);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.training-list li:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 48px rgba(16, 36, 52, 0.18);
}

.training-list li::before {
    content: "";
    position: absolute;
    top: 20px;
    left: 18px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-red), var(--color-blue));
}

.training-note {
    max-width: 880px;
    margin-bottom: 0;
    margin-inline: auto;
    padding: 18px 20px;
    border-left: 4px solid var(--color-blue);
    border-radius: 16px;
    background: #f6f9fd;
    font-weight: 800;
    text-align: center;
}

.training-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 0;
}

.training-media {
    position: relative;
    padding: 24px 24px 0;
    border-radius: 28px;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.58)),
        radial-gradient(circle at 72% 18%, rgba(31, 99, 183, 0.15), transparent 36%);
    box-shadow: inset 0 0 0 1px rgba(220, 228, 238, 0.82);
}

.training-media img {
    display: block;
    width: min(100%, 1120px);
    margin: 0 auto;
    max-height: 560px;
    object-fit: contain;
}

.audience-section {
    background: var(--color-white);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.audience-card {
    display: flex;
    align-items: flex-end;
    min-height: 150px;
    border-left: 4px solid var(--color-red);
}

.audience-card h3 {
    margin-bottom: 0;
    font-size: 19px;
}

.referral-section {
    background:
        radial-gradient(circle at 88% 14%, rgba(31, 99, 183, 0.2), transparent 30%),
        linear-gradient(135deg, #f7fafc, #eaf1f8);
}

.referral-box {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(180px, 0.45fr);
    gap: 24px;
    align-items: stretch;
}

.referral-main {
    padding: 40px;
    border: 1px solid var(--color-line);
    border-radius: 28px;
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.referral-main p {
    color: var(--color-muted);
}

.referral-main .btn {
    margin-top: 14px;
}

.referral-lead {
    color: var(--color-ink);
    font-size: 22px;
    font-weight: 800;
    line-height: 1.35;
}

.referral-accent {
    display: flex;
    min-height: 260px;
    flex-direction: column;
    justify-content: center;
    padding: 32px;
    border-radius: 28px;
    background: linear-gradient(145deg, var(--color-dark), var(--color-dark-2));
    color: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.referral-accent span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 22px;
    font-weight: 800;
}

.referral-accent strong {
    font-size: clamp(64px, 8vw, 96px);
    line-height: 0.95;
}

.referral-accent small {
    color: rgba(255, 255, 255, 0.74);
    font-size: 16px;
    font-weight: 800;
}

.referral-cards {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.referral-card {
    min-height: 118px;
    padding: 24px;
    border: 1px solid var(--color-line);
    border-left: 4px solid var(--color-blue);
    border-radius: var(--radius);
    background: var(--color-white);
    color: var(--color-ink);
    font-weight: 800;
    box-shadow: 0 12px 30px rgba(16, 36, 52, 0.07);
}

.referral-card:nth-child(2) {
    border-left-color: var(--color-red);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(7, 27, 34, 0.58);
    backdrop-filter: blur(8px);
}

.modal-overlay.is-open {
    display: flex;
}

.modal-card {
    position: relative;
    width: min(760px, 100%);
    max-height: min(86vh, 920px);
    overflow: auto;
    padding: 34px;
    border: 1px solid var(--color-line);
    border-radius: 28px;
    background: var(--color-white);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
}

.modal-close {
    position: absolute;
    top: 18px;
    right: 18px;
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid var(--color-line);
    border-radius: 50%;
    background: var(--color-white);
    color: var(--color-ink);
    cursor: pointer;
    font: inherit;
    font-size: 24px;
    line-height: 1;
}

.modal-heading {
    max-width: 620px;
    margin-bottom: 24px;
}

.modal-heading p:not(.section-kicker) {
    color: var(--color-muted);
    font-size: 18px;
}

.partner-form {
    display: grid;
    gap: 18px;
}

.registration-section {
    background: var(--color-soft);
}

.registration-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(360px, 0.78fr);
    gap: 42px;
    align-items: start;
}

.registration-form {
    display: grid;
    gap: 18px;
    padding: 34px;
    border: 1px solid var(--color-line);
    border-radius: 28px;
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.form-field {
    display: grid;
    gap: 8px;
    color: var(--color-ink);
    font-weight: 800;
}

.form-field b,
.security-placeholder b {
    color: var(--color-red);
}

.form-field > input,
.form-field > select,
.form-field > textarea,
.password-control input {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    border: 1px solid var(--color-line);
    border-radius: 12px;
    background: #fbfdff;
    color: var(--color-ink);
    font: inherit;
}

.form-field textarea {
    min-height: 118px;
    resize: vertical;
}

.form-field > input:focus,
.form-field > select:focus,
.form-field > textarea:focus,
.password-control input:focus {
    border-color: rgba(31, 99, 183, 0.72);
    outline: 3px solid rgba(31, 99, 183, 0.12);
}

.checkbox-field {
    margin: 0;
    padding: 0;
    border: 0;
}

.checkbox-field legend {
    margin-bottom: 8px;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    min-height: 48px;
    padding: 12px;
    border: 1px solid var(--color-line);
    border-radius: 12px;
    background: #fbfdff;
    color: var(--color-ink);
    font-weight: 700;
}

.checkbox-item input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--color-blue);
    flex: 0 0 auto;
}

.password-control {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.password-control button,
.link-button {
    border: 0;
    background: transparent;
    color: var(--color-blue);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
}

.password-control button {
    min-height: 48px;
    padding: 0 12px;
    border: 1px solid var(--color-line);
    border-radius: 12px;
    background: var(--color-white);
}

.referral-toggle-wrap {
    margin-top: 2px;
}

.link-button {
    padding: 0;
    text-align: left;
}

.referral-code-field {
    display: none;
}

.referral-code-field.is-visible {
    display: grid;
}

.security-placeholder {
    display: grid;
    gap: 8px;
    padding: 18px;
    border: 1px dashed rgba(31, 99, 183, 0.42);
    border-radius: 16px;
    background: #f6f9fd;
}

.security-placeholder span {
    color: var(--color-muted);
}

.honeypot {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form-message {
    padding: 16px 18px;
    border-radius: 14px;
    font-size: 15px;
}

.form-message ul {
    margin: 8px 0 0;
    padding-left: 20px;
}

.form-message-success {
    border: 1px solid rgba(25, 135, 84, 0.28);
    background: #edf8f2;
    color: #145c39;
}

.form-message-error {
    border: 1px solid rgba(201, 40, 53, 0.28);
    background: #fff1f2;
    color: #8d1d26;
}

.login-note {
    margin: 0;
    color: var(--color-muted);
    text-align: center;
}

.login-note a {
    color: var(--color-blue);
    font-weight: 800;
}

.cta-section {
    background: linear-gradient(135deg, #eef4fa, #ffffff);
}

.cta-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 42px;
    border: 1px solid var(--color-line);
    border-radius: 28px;
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.cta-box div {
    max-width: 760px;
}

.cta-note {
    margin: 18px 0 0;
    font-size: 15px;
}

.site-footer {
    padding: 34px 0;
    background: var(--color-dark);
    color: var(--color-white);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.footer-inner p {
    margin: 6px 0 0;
    color: rgba(255, 255, 255, 0.68);
}

.footer-inner span {
    color: rgba(255, 255, 255, 0.68);
}

.login-page {
    min-height: 100vh;
    background:
        radial-gradient(circle at 80% 18%, rgba(31, 99, 183, 0.18), transparent 32%),
        linear-gradient(135deg, #f7fafc, #edf4fa);
}

.login-main {
    min-height: calc(100vh - 73px);
    display: grid;
    align-items: center;
}

.login-card {
    max-width: 760px;
    padding: 46px;
    border: 1px solid var(--color-line);
    border-radius: 28px;
    background: var(--color-white);
    box-shadow: var(--shadow-soft);
}

.login-card h1 {
    font-size: clamp(36px, 5vw, 56px);
}

.login-card p {
    max-width: 620px;
    color: var(--color-muted);
    font-size: 18px;
}

@media (max-width: 900px) {
    .section {
        padding: 68px 0;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .hero-panel {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .card-grid,
    .feature-grid,
    .service-cloud,
    .audience-grid,
    .referral-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .referral-box,
    .calculator-grid,
    .interface-grid,
    .training-grid,
    .registration-grid {
        grid-template-columns: 1fr;
    }

    .interface-preview {
        order: -1;
    }

    .training-grid {
        grid-template-columns: 1fr;
        padding: 34px;
    }

    .training-list {
        width: min(100% - 32px, 720px);
        grid-template-columns: repeat(2, minmax(0, 1fr));
        margin-top: -70px;
    }

    .training-media {
        padding: 20px 20px 0;
    }

    .calculator-objects {
        width: min(72%, 340px);
        margin: 28px 0 0;
    }

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

@media (max-width: 640px) {
    .container {
        width: min(100% - 28px, 1160px);
    }

    .header-inner {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
        padding: 14px 0;
    }

    .main-nav {
        justify-content: flex-start;
        gap: 8px 14px;
    }

    .main-nav a {
        font-size: 14px;
    }

    .brand img {
        height: 36px;
    }

    .section {
        padding: 54px 0;
    }

    .hero-grid {
        gap: 28px;
    }

    .hero-actions,
    .btn {
        width: 100%;
    }

    .hero-panel,
    .card-grid,
    .feature-grid,
    .interface-benefits,
    .service-cloud,
    .audience-grid,
    .referral-cards {
        grid-template-columns: 1fr;
    }

    .hero-panel,
    .service-tile,
    .calculator-card,
    .calculator-result,
    .modal-card,
    .cta-box,
    .referral-main,
    .referral-accent,
    .registration-form,
    .login-card {
        border-radius: 22px;
    }

    .referral-main,
    .calculator-card,
    .training-grid,
    .modal-card,
    .registration-form,
    .cta-box,
    .login-card {
        padding: 26px;
    }

    .password-control {
        grid-template-columns: 1fr;
    }

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

    .service-tile {
        min-height: 250px;
        padding: 28px;
    }

    .calculator-objects {
        width: min(100%, 300px);
        margin: 24px auto 0;
    }

    .interface-actions {
        width: 100%;
    }

    .feature-card {
        min-height: 300px;
        padding: 20px;
    }

    .feature-card img {
        top: 0;
        right: 10px;
        width: min(60%, 170px);
        height: min(60%, 170px);
        transform: translate(8%, -12%);
    }

    .feature-card:first-child img {
        top: 10px;
        width: min(52%, 150px);
        height: min(52%, 150px);
        transform: translate(8%, -4%);
    }

    .feature-card h3 {
        min-height: 0;
        padding: 16px 16px 6px;
    }

    .feature-card p {
        padding: 0 16px 16px;
    }

    .training-copy p {
        text-align: left;
    }

    .training-note {
        text-align: left;
    }

    .training-list {
        width: 100%;
        grid-template-columns: 1fr;
        margin-top: 14px;
    }

    .training-list li {
        min-height: 76px;
    }

    .training-media {
        padding: 16px;
    }

    .training-media img {
        max-height: 300px;
    }

    .service-mark {
        top: 22px;
        right: 22px;
        width: 42px;
        height: 42px;
    }

    .service-mark img {
        width: 38px;
        height: 38px;
    }

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