:root {
    --primary: #243f90;
    --primary-dark: #16245e;
    --primary-soft: #eef2ff;
    --accent: #e63746;
    --accent-soft: #fff0f2;
    --success: #1f7a4d;
    --success-soft: #eaf8f1;
    --ink: #151b2d;
    --muted: #59657d;
    --line: #d7deeb;
    --panel: #ffffff;
    --soft: #f5f7fc;
    --shadow: 0 22px 60px rgba(22, 36, 94, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--soft);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
}

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

section,
#app {
    scroll-margin-top: 92px;
}

.site-header {
    align-items: center;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid rgba(215, 222, 235, 0.9);
    display: flex;
    justify-content: space-between;
    left: 0;
    padding: 15px clamp(18px, 4vw, 58px);
    position: sticky;
    right: 0;
    top: 0;
    z-index: 20;
}

.brand {
    color: var(--primary);
    font-size: 19px;
    font-weight: 900;
}

.site-header nav {
    align-items: center;
    display: flex;
    gap: 18px;
}

.site-header nav a {
    color: var(--muted);
    font-size: 14px;
    font-weight: 800;
}

.site-header nav a:hover {
    color: var(--primary);
}

.site-header .login-link {
    border: 1px solid var(--primary);
    border-radius: 6px;
    color: var(--primary);
    padding: 9px 14px;
}

.hero {
    align-items: center;
    background:
        linear-gradient(90deg, rgba(245, 247, 252, 0.98) 0%, rgba(245, 247, 252, 0.94) 47%, rgba(245, 247, 252, 0.62) 100%),
        url("../img/app-dashboard-captura.png") right 6vw bottom 28px / auto min(78vh, 680px) no-repeat;
    display: grid;
    min-height: min(760px, calc(100vh - 70px));
    overflow: hidden;
    padding: clamp(46px, 8vw, 86px) clamp(18px, 5vw, 72px) 44px;
    position: relative;
}

.hero-copy {
    max-width: 720px;
    position: relative;
    z-index: 2;
}

.eyebrow {
    color: var(--accent);
    display: inline-block;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0.08em;
    margin-bottom: 14px;
    text-transform: uppercase;
}

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

h1 {
    color: var(--primary-dark);
    font-size: clamp(38px, 6vw, 66px);
    line-height: 1.02;
    margin-bottom: 20px;
    max-width: 760px;
}

.hero p,
.workflow p,
.registration-copy p {
    color: var(--muted);
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 28px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn-primary,
.btn-secondary {
    border-radius: 6px;
    display: inline-flex;
    font-weight: 900;
    justify-content: center;
    min-height: 46px;
    padding: 13px 18px;
}

.btn-primary {
    background: var(--primary);
    border: 1px solid var(--primary);
    color: #ffffff;
}

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

.btn-secondary {
    background: #ffffff;
    border: 1px solid var(--line);
    color: var(--primary);
}

.hero-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.hero-highlights span {
    align-items: center;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--muted);
    display: inline-flex;
    font-size: 13px;
    font-weight: 800;
    gap: 7px;
    padding: 11px 13px;
}

.hero-highlights strong {
    color: var(--primary);
    font-size: 18px;
}

.phone-preview {
    display: none;
}

.section-band,
.app-showcase,
.workflow,
.registration-section {
    padding: 62px clamp(18px, 5vw, 72px);
}

.section-band {
    background: #ffffff;
}

.app-showcase {
    align-items: center;
    background: #ffffff;
    display: grid;
    gap: clamp(28px, 5vw, 56px);
    grid-template-columns: minmax(0, 0.85fr) minmax(260px, 0.65fr);
}

.app-copy {
    max-width: 760px;
}

.app-copy p {
    color: var(--muted);
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 22px;
}

.app-points {
    display: grid;
    gap: 10px;
}

.app-points span {
    background: var(--primary-soft);
    border: 1px solid #dbe4ff;
    border-radius: 8px;
    color: var(--primary-dark);
    font-weight: 800;
    padding: 13px 14px;
}

.app-shot {
    justify-self: center;
    max-width: 290px;
    width: 100%;
}

.app-shot img {
    background: #ffffff;
    border: 9px solid #121827;
    border-radius: 28px;
    box-shadow: 0 24px 52px rgba(22, 36, 94, 0.2);
    display: block;
    width: 100%;
}

.section-heading {
    margin: 0 auto 30px;
    max-width: 780px;
    text-align: center;
}

h2 {
    color: var(--primary-dark);
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.12;
    margin-bottom: 12px;
}

.feature-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-grid article {
    align-items: center;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 250px;
    padding: 24px 20px;
    text-align: center;
}

.feature-grid h3,
.form-section h3 {
    color: var(--primary);
    font-size: 18px;
    margin-bottom: 8px;
}

.feature-grid img {
    display: block;
    height: 148px;
    margin-top: 20px;
    max-width: 100%;
    object-fit: contain;
    width: 180px;
}

.workflow {
    align-items: center;
    background: var(--primary-dark);
    color: #ffffff;
    display: grid;
    gap: 34px;
    grid-template-columns: minmax(0, 0.8fr) minmax(280px, 1.2fr);
}

.workflow h2,
.workflow p {
    color: #ffffff;
}

.workflow p {
    opacity: 0.86;
}

.scale-row {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.scale-row span {
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-top: 5px solid var(--accent);
    border-radius: 8px;
    color: var(--primary-dark);
    font-weight: 900;
    padding: 19px 12px;
    text-align: center;
}

.registration-section {
    background: var(--soft);
    display: grid;
    gap: clamp(28px, 5vw, 48px);
    grid-template-columns: minmax(260px, 0.62fr) minmax(0, 1fr);
}

.registration-section.form-collapsed {
    grid-template-columns: minmax(260px, 720px);
    justify-content: center;
}

.registration-copy {
    align-self: start;
    position: sticky;
    top: 100px;
}

.registration-note {
    background: var(--primary-soft);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    color: var(--primary-dark);
    line-height: 1.55;
    margin-bottom: 20px;
    padding: 15px 16px;
}

.register-toggle {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: 1px solid var(--primary);
    border-radius: 8px;
    box-shadow: 0 18px 36px rgba(36, 63, 144, 0.22);
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-size: 22px;
    font-weight: 900;
    justify-content: center;
    min-height: 62px;
    padding: 17px 24px;
    text-align: center;
    width: min(100%, 360px);
}

.register-toggle:hover,
.register-toggle.is-open {
    background: var(--primary-dark);
}

.registration-form-shell {
    display: none;
    scroll-margin-top: 96px;
}

.registration-form-shell.is-open {
    display: block;
}

.registration-form {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: clamp(18px, 4vw, 30px);
}

.form-header {
    align-items: center;
    background: var(--primary-soft);
    border: 1px solid #dbe4ff;
    border-radius: 8px;
    color: var(--primary-dark);
    display: flex;
    gap: 12px;
    justify-content: space-between;
    margin-bottom: 24px;
    padding: 14px 16px;
}

.form-header span {
    font-weight: 900;
}

.form-header strong {
    color: var(--muted);
    font-size: 13px;
}

.form-section + .form-section {
    border-top: 1px solid var(--line);
    margin-top: 26px;
    padding-top: 24px;
}

.form-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
    color: var(--ink);
    display: grid;
    font-size: 13px;
    font-weight: 900;
    gap: 8px;
}

label.full {
    grid-column: 1 / -1;
}

input {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--ink);
    font: inherit;
    min-height: 46px;
    padding: 11px 12px;
    width: 100%;
}

input::placeholder {
    color: #303a50;
    opacity: 1;
}

input:focus {
    border-color: var(--primary);
    outline: 3px solid rgba(36, 63, 144, 0.15);
}

input.is-invalid,
.iti.field-invalid input {
    border-color: var(--accent);
    outline: 3px solid rgba(230, 55, 70, 0.14);
}

.iti {
    width: 100%;
}

.iti input {
    width: 100%;
}

.iti__country-list {
    color: var(--ink);
    font-size: 13px;
    font-weight: 700;
}

.iti__selected-country {
    border-radius: 6px 0 0 6px;
}

.field-error {
    color: #9f1d2b;
    display: none;
    font-size: 12px;
    font-weight: 800;
    line-height: 1.35;
    margin-top: -2px;
}

.field-error.is-visible {
    display: block;
}

input[readonly] {
    background: #f1f4fb;
    color: var(--primary-dark);
    cursor: not-allowed;
    font-weight: 900;
}

.field-note {
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.4;
}

.locked-field {
    background: #f8faff;
    border: 1px dashed #b8c4df;
    border-radius: 8px;
    padding: 14px;
}

.submit-btn {
    margin-top: 26px;
    min-height: 54px;
    width: 100%;
}

.alert {
    border-radius: 8px;
    line-height: 1.45;
    margin-top: 18px;
    padding: 14px 15px;
}

.alert ul {
    margin: 10px 0 0;
    padding-left: 18px;
}

.alert li + li {
    margin-top: 5px;
}

.alert.success {
    background: var(--success-soft);
    border: 1px solid rgba(31, 122, 77, 0.2);
    color: var(--success);
}

.alert.danger {
    background: var(--accent-soft);
    border: 1px solid rgba(230, 55, 70, 0.2);
    color: #9f1d2b;
}

@media (max-width: 980px) {
    .hero {
        background:
            linear-gradient(180deg, rgba(245, 247, 252, 0.98) 0%, rgba(245, 247, 252, 0.92) 100%),
            url("../img/app-dashboard-captura.png") center bottom / auto 420px no-repeat;
        min-height: auto;
        padding-bottom: 420px;
    }

    .registration-copy {
        position: static;
    }

    .app-showcase,
    .workflow,
    .registration-section {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 680px) {
    .site-header {
        align-items: flex-start;
        gap: 12px;
        flex-direction: column;
    }

    .site-header nav {
        flex-wrap: wrap;
        gap: 10px;
    }

    .feature-grid,
    .scale-row,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-header nav a {
        font-size: 13px;
    }
}