:root {
    --color-primary: #31C91D;
    --color-secondary: #8D169C;
    --color-accent: #3DF584;
    --color-text: #111827;
    --color-neutral: #f9fafb;
    --color-success: #059669;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --spacing-xs: 8px;
    --spacing-sm: 13px;
    --spacing-md: 21px;
    --spacing-lg: 34px;
    --spacing-xl: 55px;
    --spacing-xxl: 89px;
    --text-xs: 11px;
    --text-sm: 16px;
    --text-base: 23px;
    --text-lg: 32px;
    --text-xl: 45px;
    --text-xxl: 64px;
    --text-hero: 90px;
    --breakpoint-mobile: 450px;
    --breakpoint-tablet: 720px;
    --breakpoint-desktop: 960px;
    --breakpoint-wide: 1280px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background: #ffffff;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-row {
    flex-direction: row;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

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

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

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

.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.gap-xl {
    gap: var(--spacing-xl);
}

.gap-xxl {
    gap: var(--spacing-xxl);
}

.grid {
    display: grid;
}

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

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

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

.grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.col-span-2 {
    grid-column: span 2;
}

.col-span-3 {
    grid-column: span 3;
}

.text-xs {
    font-size: var(--text-xs);
}

.text-sm {
    font-size: var(--text-sm);
}

.text-base {
    font-size: var(--text-base);
}

.text-lg {
    font-size: var(--text-lg);
}

.text-xl {
    font-size: var(--text-xl);
}

.text-xxl {
    font-size: var(--text-xxl);
}

.text-hero {
    font-size: var(--text-hero);
    line-height: 1.1;
    font-weight: 700;
}

.text-center {
    text-align: center;
}

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

.text-right {
    text-align: right;
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.font-medium {
    font-weight: 500;
}

.font-normal {
    font-weight: 400;
}

.bg-primary {
    background-color: var(--color-primary);
}

.bg-secondary {
    background-color: var(--color-secondary);
}

.bg-accent {
    background-color: var(--color-accent);
}

.bg-neutral {
    background-color: var(--color-neutral);
}

.bg-white {
    background-color: #ffffff;
}

.text-primary {
    color: var(--color-primary);
}

.text-secondary {
    color: var(--color-secondary);
}

.text-accent {
    color: var(--color-accent);
}

.text-white {
    color: #ffffff;
}

.text-dark {
    color: var(--color-text);
}

.p-xs {
    padding: var(--spacing-xs);
}

.p-sm {
    padding: var(--spacing-sm);
}

.p-md {
    padding: var(--spacing-md);
}

.p-lg {
    padding: var(--spacing-lg);
}

.p-xl {
    padding: var(--spacing-xl);
}

.p-xxl {
    padding: var(--spacing-xxl);
}

.px-xs {
    padding-left: var(--spacing-xs);
    padding-right: var(--spacing-xs);
}

.px-sm {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

.px-md {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.px-lg {
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.px-xl {
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
}

.py-xs {
    padding-top: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
}

.py-sm {
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.py-md {
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.py-lg {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

.py-xl {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.py-xxl {
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

.m-xs {
    margin: var(--spacing-xs);
}

.m-sm {
    margin: var(--spacing-sm);
}

.m-md {
    margin: var(--spacing-md);
}

.m-lg {
    margin: var(--spacing-lg);
}

.m-xl {
    margin: var(--spacing-xl);
}

.my-xs {
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.my-sm {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.my-md {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.my-lg {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.my-xl {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.mb-xs {
    margin-bottom: var(--spacing-xs);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

.mb-xxl {
    margin-bottom: var(--spacing-xxl);
}

.mt-xs {
    margin-top: var(--spacing-xs);
}

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.rounded-sm {
    border-radius: 4px;
}

.rounded-md {
    border-radius: 8px;
}

.rounded-lg {
    border-radius: 13px;
}

.rounded-xl {
    border-radius: 21px;
}

.rounded-full {
    border-radius: 9999px;
}

.shadow-sm {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.shadow-md {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.shadow-lg {
    box-shadow: 0 8px 21px rgba(0, 0, 0, 0.12);
}

.shadow-xl {
    box-shadow: 0 13px 34px rgba(0, 0, 0, 0.15);
}

.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.max-w-sm {
    max-width: 450px;
}

.max-w-md {
    max-width: 720px;
}

.max-w-lg {
    max-width: 960px;
}

.max-w-xl {
    max-width: 1200px;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.sticky {
    position: sticky;
}

.fixed {
    position: fixed;
}

.z-10 {
    z-index: 10;
}

.z-20 {
    z-index: 20;
}

.z-30 {
    z-index: 30;
}

.z-40 {
    z-index: 40;
}

.z-50 {
    z-index: 50;
}

.overflow-hidden {
    overflow: hidden;
}

.navbar {
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-md) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.logo:hover {
    opacity: 0.8;
}

.main-nav {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    align-items: center;
}

.nav-item {
    display: inline-block;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    transition: color 0.2s ease;
    border-radius: 4px;
}

.nav-link:hover {
    color: var(--color-primary);
    background: rgba(49, 201, 29, 0.08);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--text-lg);
    color: var(--color-text);
    cursor: pointer;
}

.header-main {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, rgba(49, 201, 29, 0.05) 0%, rgba(141, 22, 156, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

.hero-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.hero-circle-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    top: -150px;
    right: -100px;
    z-index: 1;
}

.hero-circle-2 {
    width: 300px;
    height: 300px;
    background: var(--color-secondary);
    bottom: -100px;
    left: -80px;
    z-index: 1;
}

.hero-circle-3 {
    width: 200px;
    height: 200px;
    background: var(--color-accent);
    top: 50%;
    right: 15%;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.primary-banner {
    padding: var(--spacing-xl) 0;
    background: var(--color-neutral);
}

.intro-section {
    padding: var(--spacing-xl) 0;
}

.main-feature {
    padding: var(--spacing-xxl) 0;
    background: #ffffff;
}

.content-section {
    padding: var(--spacing-xl) 0;
}

.info-block {
    padding: var(--spacing-lg);
    background: #ffffff;
    border-radius: 8px;
}

.data-area {
    padding: var(--spacing-lg) 0;
}

.content-zone {
    padding: var(--spacing-xl) 0;
    background: var(--color-neutral);
}

.content-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.layout-system {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.flex-container {
    display: flex;
    gap: var(--spacing-md);
}

.grid-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.info-card {
    background: #ffffff;
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 21px rgba(0, 0, 0, 0.12);
}

.detail-box {
    background: var(--color-neutral);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
}

.content-panel {
    background: #ffffff;
    padding: var(--spacing-xl);
    border-radius: 13px;
}

.info-tile {
    background: #ffffff;
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.action-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: var(--text-sm);
    border: none;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.1s ease;
}

.action-button:hover {
    background: #28a518;
    transform: translateY(-2px);
}

.primary-cta {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-primary);
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: var(--text-base);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 8px rgba(49, 201, 29, 0.2);
}

.primary-cta:hover {
    background: #28a518;
    box-shadow: 0 8px 21px rgba(49, 201, 29, 0.3);
    transform: translateY(-2px);
}

.submit-btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-secondary);
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background 0.2s ease;
}

.submit-btn:hover {
    background: #6d1178;
}

.main-action {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    background: transparent;
    color: var(--color-primary);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    border: 2px solid var(--color-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.main-action:hover {
    background: var(--color-primary);
    color: #ffffff;
}

.split-screen {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 500px;
}

.split-left {
    padding: var(--spacing-xl);
    position: sticky;
    top: 80px;
    height: fit-content;
}

.split-right {
    padding: var(--spacing-xl);
}

.tab-container {
    background: #ffffff;
    border-radius: 13px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
}

.tab-buttons {
    display: flex;
    border-bottom: 2px solid var(--color-neutral);
    background: var(--color-neutral);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    color: var(--color-text);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 3px solid transparent;
}

.tab-btn:hover {
    background: rgba(49, 201, 29, 0.05);
}

.tab-btn.active {
    background: #ffffff;
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
    padding: var(--spacing-xl);
}

.tab-content.active {
    display: block;
}

.footer {
    background: var(--color-text);
    color: #ffffff;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--text-lg);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: var(--text-sm);
    font-family: inherit;
    transition: border-color 0.2s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

@media screen and (max-width: 960px) {
    .container {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }

    .text-hero {
        font-size: var(--text-xxl);
    }

    .text-xxl {
        font-size: var(--text-xl);
    }

    .text-xl {
        font-size: var(--text-lg);
    }

    .grid-cols-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grid-cols-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .split-screen {
        grid-template-columns: 1fr;
    }

    .split-left {
        position: static;
    }

    .py-xxl {
        padding-top: var(--spacing-xl);
        padding-bottom: var(--spacing-xl);
    }

    .py-xl {
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
}

@media screen and (max-width: 720px) {
    .main-nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-xxl) var(--spacing-lg);
        box-shadow: 4px 0 13px rgba(0, 0, 0, 0.1);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 200;
    }

    body.menu-open .main-nav {
        transform: translateX(0);
    }

    .mobile-menu-toggle {
        display: block;
        position: relative;
        z-index: 300;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        width: 100%;
    }

    .grid-cols-2 {
        grid-template-columns: 1fr;
    }

    .grid-cols-3 {
        grid-template-columns: 1fr;
    }

    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

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

    .tab-buttons {
        flex-direction: column;
    }

    .tab-btn {
        text-align: left;
        border-bottom: 1px solid #e5e7eb;
        border-left: 3px solid transparent;
    }

    .tab-btn.active {
        border-bottom-color: #e5e7eb;
        border-left-color: var(--color-primary);
    }

    .hero-circle-1 {
        width: 250px;
        height: 250px;
    }

    .hero-circle-2 {
        width: 180px;
        height: 180px;
    }

    .hero-circle-3 {
        width: 120px;
        height: 120px;
    }
}

@media screen and (max-width: 450px) {
    .text-hero {
        font-size: var(--text-xl);
    }

    .text-xxl {
        font-size: var(--text-lg);
    }

    .text-xl {
        font-size: var(--text-base);
    }

    .p-xl {
        padding: var(--spacing-lg);
    }

    .p-xxl {
        padding: var(--spacing-xl);
    }

    .py-xl {
        padding-top: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }

    .px-xl {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}