:root {
    --platform-primary: #0f172a;
    --platform-secondary: #1d4ed8;
    --platform-accent: #16a34a;
    --platform-line: #dbe3ef;
    --platform-muted: #64748b;
    --platform-soft: #f8fafc;
    --platform-white: #ffffff;
    --platform-ink: #111827;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

.platform-page {
    min-height: 100vh;
    overflow-x: hidden;
}

.platform-container {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.platform-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(219, 227, 239, 0.86);
    background: rgba(248, 250, 252, 0.92);
    backdrop-filter: blur(14px);
}

.platform-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
    padding: 18px 0;
}

.platform-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    white-space: nowrap;
}

.platform-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    color: var(--platform-white);
    background: var(--platform-primary);
    font-size: 14px;
}

.platform-menu,
.platform-actions,
.hero-actions,
.final-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.platform-menu {
    justify-content: center;
    color: #475569;
    font-size: 14px;
    font-weight: 700;
}

.platform-menu a {
    padding: 8px 10px;
    border-radius: 8px;
}

.platform-menu a:hover {
    color: var(--platform-secondary);
    background: #eef4ff;
}

.platform-actions {
    justify-content: flex-end;
}

.platform-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 800;
    line-height: 1;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.platform-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.12);
}

.platform-btn-primary {
    color: var(--platform-white);
    background: var(--platform-secondary);
}

.platform-btn-primary:hover {
    background: #1e40af;
}

.platform-btn-secondary,
.platform-btn-ghost,
.platform-btn-light,
.platform-btn-ghost-dark {
    color: var(--platform-primary);
    border-color: var(--platform-line);
    background: rgba(255, 255, 255, 0.86);
}

.platform-btn-secondary:hover,
.platform-btn-ghost:hover,
.platform-btn-light:hover,
.platform-btn-ghost-dark:hover {
    color: var(--platform-secondary);
    border-color: rgba(29, 78, 216, 0.28);
    background: var(--platform-white);
}

.platform-hero {
    color: var(--platform-white);
    background:
        linear-gradient(120deg, rgba(15, 23, 42, 0.97), rgba(29, 78, 216, 0.86)),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.13) 0 1px, transparent 1px 72px),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.08) 0 1px, transparent 1px 72px);
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
    gap: 46px;
    align-items: center;
    padding: 78px 0 70px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 10px;
    border-radius: 999px;
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.12);
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero-copy h1,
.section-heading h2,
.final-cta h2 {
    margin: 16px 0 0;
    letter-spacing: 0;
}

.hero-copy h1 {
    max-width: 760px;
    font-size: clamp(38px, 5vw, 68px);
    line-height: 1;
}

.hero-copy p {
    max-width: 660px;
    margin: 22px 0 0;
    color: rgba(255,255,255,0.84);
    font-size: 18px;
    line-height: 1.65;
}

.hero-actions {
    margin-top: 28px;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: 660px;
    margin-top: 30px;
}

.hero-metrics div {
    padding: 16px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 8px;
    background: rgba(255,255,255,0.08);
}

.hero-metrics strong,
.hero-metrics span {
    display: block;
}

.hero-metrics strong {
    font-size: 20px;
}

.hero-metrics span {
    margin-top: 6px;
    color: rgba(255,255,255,0.72);
    font-size: 13px;
}

.hero-product {
    min-width: 0;
}

.product-window {
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.24);
    border-radius: 16px;
    background: rgba(255,255,255,0.12);
    box-shadow: 0 34px 90px rgba(15, 23, 42, 0.34);
}

.product-topbar {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    padding: 0 16px;
    border-bottom: 1px solid rgba(255,255,255,0.16);
}

.product-topbar span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.55);
}

.product-topbar strong {
    margin-left: 8px;
    color: rgba(255,255,255,0.86);
    font-size: 13px;
}

.product-layout {
    display: grid;
    grid-template-columns: 112px 1fr;
    gap: 18px;
    padding: 18px;
}

.product-layout aside,
.product-layout section {
    border-radius: 12px;
    background: rgba(255,255,255,0.92);
}

.product-layout aside {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px 12px;
}

.menu-line {
    display: block;
    width: 100%;
    height: 12px;
    border-radius: 99px;
    background: #dbeafe;
}

.menu-line.active {
    background: var(--platform-secondary);
}

.menu-line.short {
    width: 68%;
}

.product-layout section {
    padding: 16px;
}

.product-kpis,
.product-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.product-kpis span,
.product-cards span {
    min-height: 58px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    background: #f8fafc;
}

.product-chart {
    display: flex;
    align-items: end;
    gap: 10px;
    height: 170px;
    margin: 14px 0;
    padding: 16px;
    border-radius: 12px;
    background: #eef4ff;
}

.product-chart span {
    flex: 1;
    min-height: 34px;
    border-radius: 8px 8px 0 0;
    background: linear-gradient(180deg, #1d4ed8, #93c5fd);
}

.product-cards {
    grid-template-columns: repeat(2, 1fr);
}

.platform-section {
    padding: 72px 0;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 28px;
}

.section-heading.compact {
    margin-bottom: 0;
}

.section-heading h2,
.final-cta h2 {
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.08;
}

.section-heading p,
.final-cta p {
    margin: 14px 0 0;
    color: var(--platform-muted);
    font-size: 17px;
    line-height: 1.65;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
}

.feature-card,
.scenario-card,
.screen-card,
.plan-preview-card {
    border: 1px solid var(--platform-line);
    border-radius: 12px;
    background: var(--platform-white);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover,
.scenario-card:hover,
.screen-card:hover,
.plan-preview-card:hover {
    border-color: rgba(29, 78, 216, 0.24);
    box-shadow: 0 20px 46px rgba(15, 23, 42, 0.1);
    transform: translateY(-2px);
}

.feature-card {
    min-height: 210px;
    padding: 20px;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    color: var(--platform-secondary);
    background: #eff6ff;
    font-size: 13px;
    font-weight: 900;
}

.feature-card h3,
.scenario-card h3,
.screen-card h3,
.plan-preview-card h3 {
    margin: 18px 0 0;
    color: var(--platform-ink);
    font-size: 18px;
}

.feature-card p,
.scenario-card p,
.screen-card p,
.plan-preview-card p {
    margin: 10px 0 0;
    color: var(--platform-muted);
    font-size: 14px;
    line-height: 1.55;
}

.growth-section {
    border-top: 1px solid var(--platform-line);
    border-bottom: 1px solid var(--platform-line);
    background: var(--platform-white);
}

.growth-grid {
    display: grid;
    grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
    gap: 32px;
    align-items: start;
}

.scenario-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.scenario-card {
    padding: 22px;
}

.screens-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
}

.screen-card {
    overflow: hidden;
    padding: 0 0 18px;
}

.screen-card h3,
.screen-card p {
    padding: 0 18px;
}

.screen-mock {
    height: 170px;
    padding: 14px;
    background: linear-gradient(135deg, #eaf1ff, #f8fafc);
}

.mock-bar {
    width: 56%;
    height: 14px;
    margin-bottom: 14px;
    border-radius: 999px;
    background: var(--platform-secondary);
}

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

.mock-body span {
    min-height: 54px;
    border: 1px solid #dbe3ef;
    border-radius: 10px;
    background: rgba(255,255,255,0.9);
}

.screen-dashboard .mock-body span:nth-child(1),
.screen-reports .mock-body span:nth-child(4),
.screen-checklist .mock-body span:nth-child(2) {
    background: #dbeafe;
}

.screen-settings .mock-body,
.screen-checklist .mock-body {
    grid-template-columns: 1fr;
}

.plans-preview {
    background: #eef4ff;
}

.plan-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.plan-preview-card {
    position: relative;
    padding: 24px;
}

.plan-preview-card.featured {
    border-color: rgba(29, 78, 216, 0.38);
    box-shadow: 0 22px 54px rgba(29, 78, 216, 0.12);
}

.plan-badge {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    color: #1d4ed8;
    background: #dbeafe;
    font-size: 12px;
    font-weight: 900;
}

.plan-preview-card strong {
    display: block;
    margin-top: 16px;
    color: var(--platform-primary);
    font-size: 34px;
    line-height: 1;
}

.plan-preview-card small {
    color: var(--platform-muted);
    font-size: 14px;
}

.plans-preview-action {
    display: flex;
    justify-content: center;
    margin-top: 24px;
}

.final-cta {
    padding: 70px 0;
    color: var(--platform-white);
    background: var(--platform-primary);
}

.final-cta .eyebrow {
    color: #fde68a;
    background: rgba(245, 158, 11, 0.16);
}

.final-cta p {
    color: rgba(255,255,255,0.72);
}

.final-cta-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 30px;
    align-items: center;
}

.final-actions {
    justify-content: flex-end;
}

@media (max-width: 1100px) {
    .platform-nav {
        align-items: flex-start;
        flex-direction: column;
    }

    .platform-menu,
    .platform-actions {
        justify-content: flex-start;
    }

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

@media (max-width: 900px) {
    .hero-grid,
    .growth-grid,
    .final-cta-inner {
        grid-template-columns: 1fr;
    }

    .hero-grid {
        padding-top: 48px;
    }

    .final-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 720px) {
    .platform-container,
    .platform-nav {
        width: min(100% - 32px, 1180px);
    }

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

    .platform-btn {
        flex: 1 1 170px;
    }

    .hero-metrics,
    .scenario-grid,
    .plan-preview-grid,
    .features-grid,
    .screens-grid {
        grid-template-columns: 1fr;
    }

    .product-layout {
        grid-template-columns: 1fr;
    }

    .product-layout aside {
        display: none;
    }

    .platform-section {
        padding: 54px 0;
    }
}