/* ===== CSS Variables — светлая тема, акцент #00AAFF ===== */
:root {
    --primary: #00AAFF;
    --primary-dark: #0088CC;
    --primary-darker: #0066AA;
    --primary-light: #33BBFF;
    --primary-ultra: #CCF0FF;
    --accent: #0077DD;

    --dark: #0D1B2A;
    --dark-2: #1A2E44;
    --text: #1A2E44;
    --text-2: #3A5168;
    --text-3: #6B8AA8;

    --white: #FFFFFF;
    --bg: #F5FAFF;
    --bg-2: #EBF5FF;
    --bg-3: #DAEEFF;
    --surface: #FFFFFF;
    --surface-2: #F0F8FF;

    --border: #C8E6FF;
    --border-strong: #7DCEFF;
    --border-focus: #00AAFF;

    --gradient: linear-gradient(135deg, #00AAFF 0%, #0066CC 100%);
    --gradient-h: linear-gradient(90deg, #00AAFF 0%, #0066CC 100%);
    --gradient-soft: linear-gradient(135deg, #E8F6FF 0%, #CCE8FF 100%);
    --gradient-glow: linear-gradient(135deg, #00AAFF 0%, #33CCFF 50%, #0055CC 100%);

    --shadow-sm: 0 1px 4px rgba(0, 100, 180, 0.08);
    --shadow: 0 2px 12px rgba(0, 100, 180, 0.1), 0 0 0 1px var(--border);
    --shadow-lg: 0 8px 32px rgba(0, 100, 180, 0.14), 0 0 0 1px var(--border);
    --shadow-glow: 0 4px 20px rgba(0, 170, 255, 0.25);
    --shadow-glow-lg: 0 8px 40px rgba(0, 170, 255, 0.35);
    --shadow-card: 0 4px 24px rgba(0, 80, 160, 0.08);
    --shadow-card-hover: 0 8px 36px rgba(0, 80, 160, 0.16);

    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Golos Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
    overflow-x: hidden;
}

::selection {
    background: var(--primary);
    color: var(--white);
}

a {
    color: inherit;
}

code {
    background: var(--bg-3);
    border: 1px solid var(--border-strong);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.85em;
    color: var(--primary-darker);
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-weight: 600;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-2);
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 24px rgba(0, 100, 180, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
}

.logo img {
    height: 38px;
    width: auto;
}

.logo span {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.03em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-2);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    letter-spacing: 0.01em;
}

.nav-links a:hover {
    color: var(--primary-dark);
    background: var(--bg-2);
}

.nav-cta {
    background: var(--gradient) !important;
    color: var(--white) !important;
    padding: 8px 20px !important;
    border-radius: 50px !important;
    font-weight: 600 !important;
    box-shadow: var(--shadow-glow);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow-lg) !important;
    background: var(--gradient-glow) !important;
}

/* Wallet buttons in nav */
.nav-wallet {
    background: var(--bg-2) !important;
    color: var(--primary-dark) !important;
    padding: 8px 14px !important;
    border-radius: 50px !important;
    font-weight: 600 !important;
    font-size: 0.82rem !important;
    border: 1px solid var(--border) !important;
    cursor: pointer;
    transition: var(--transition);
}

.nav-wallet:hover {
    background: var(--primary-ultra) !important;
    border-color: var(--primary) !important;
    color: var(--primary-darker) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-dark);
    border: 1.5px solid var(--border-strong);
}

.btn-secondary:hover {
    background: var(--bg-2);
    border-color: var(--primary);
    color: var(--primary-darker);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

/* Donate button */
.btn-donate {
    background: linear-gradient(135deg, #FF6B35 0%, #FF3366 100%);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(255, 51, 102, 0.35);
}

.btn-donate:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(255, 51, 102, 0.45);
}

.btn-ghost {
    background: var(--surface-2);
    color: var(--text-2);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--bg-3);
    color: var(--text);
    border-color: var(--border-strong);
}

/* ===== Badge ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-ultra);
    border: 1px solid var(--border-strong);
    color: var(--primary-darker);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 50px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--primary);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.3;
        transform: scale(0.6);
    }
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: var(--white);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse 900px 700px at 10% 20%, rgba(0, 170, 255, 0.07) 0%, transparent 65%),
        radial-gradient(ellipse 700px 600px at 90% 80%, rgba(0, 100, 204, 0.06) 0%, transparent 65%),
        radial-gradient(ellipse 1200px 800px at 50% 110%, rgba(0, 170, 255, 0.05) 0%, transparent 55%);
}

/* Grid pattern */
.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 170, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 170, 255, 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 40% 40%, black 20%, transparent 75%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 160px;
    background: linear-gradient(to top, var(--bg), transparent);
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 580px;
}

.hero-content h1 {
    font-size: clamp(2.2rem, 4vw, 3.6rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
    color: var(--dark);
}

.hero-content h1 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-2);
    margin-bottom: 40px;
    line-height: 1.75;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
    padding-top: 36px;
    border-top: 1px solid var(--border);
}

.stat {
    text-align: left;
}

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-dark);
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

/* ===== Network Diagram ===== */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.network-diagram {
    position: relative;
    width: 420px;
    height: 340px;
}

.node {
    position: absolute;
    width: 68px;
    height: 68px;
    background: var(--white);
    border: 2px solid var(--border-strong);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    box-shadow: var(--shadow-card);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.node:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    transform: scale(1.1);
}

.node-center {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.node-center:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: var(--shadow-glow-lg);
}

.node-relay {
    background: var(--bg-2);
    border-color: var(--border-strong);
}

.node-client {
    background: var(--white);
    border-color: var(--border);
}

.node-label {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-2);
}

.node-center .node-label {
    color: var(--white);
}

.node:nth-child(2) {
    top: 10%;
    left: 18%;
}

.node:nth-child(3) {
    top: 10%;
    left: 62%;
}

.node:nth-child(4) {
    top: 52%;
    left: 2%;
}

.node:nth-child(5) {
    top: 52%;
    left: 79%;
}

.node:nth-child(6) {
    top: 78%;
    left: 30%;
}

.node:nth-child(7) {
    top: 78%;
    left: 60%;
}

.qr-code {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 1;
    opacity: 0.9;
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

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

.section-alt {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 16px;
    color: var(--dark);
}

.section-header h2 span {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-2);
    line-height: 1.7;
}

/* ===== About Grid ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.about-card {
    background: var(--white);
    border: 1px solid var(--border);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s;
}

.about-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-card-hover);
}

.about-card:hover::before {
    opacity: 1;
}

.about-icon {
    font-size: 2.8rem;
    margin-bottom: 20px;
    display: block;
}

.about-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.about-card p {
    font-size: 0.875rem;
    color: var(--text-2);
    line-height: 1.65;
}

/* ===== Features ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.feature-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}

.feature-icon-wrap {
    width: 52px;
    height: 52px;
    min-width: 52px;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.feature-card:hover .feature-icon-wrap {
    background: var(--gradient);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 1.65;
}

/* ===== Architecture ===== */
.arch-wrapper {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 40px;
    align-items: start;
}

.architecture-diagram {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.arch-layer {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.arch-layer:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-glow);
}

.arch-layer-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin-bottom: 12px;
}

.arch-layer-content {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.arch-component {
    background: var(--bg-2);
    border: 1px solid var(--border);
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-2);
    transition: var(--transition);
    cursor: default;
}

.arch-component:hover {
    background: var(--primary-ultra);
    border-color: var(--border-strong);
    color: var(--primary-darker) !important;
}

.arch-connector {
    display: flex;
    padding: 2px 28px;
}

.arch-connector-line {
    width: 2px;
    height: 26px;
    background: linear-gradient(to bottom, var(--border-strong), var(--primary));
    border-radius: 2px;
    position: relative;
}

.arch-connector-line::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--primary);
}

.arch-side {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.arch-note {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.arch-note h4 {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin-bottom: 16px;
}

.arch-note-item {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.875rem;
    color: var(--text-2);
}

.arch-note-item:last-child {
    border-bottom: none;
}

.arch-note-item strong {
    color: var(--primary-dark);
    min-width: 90px;
    font-size: 0.78rem;
}

.arch-flow-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-card);
}

.arch-flow-card h4 {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin-bottom: 16px;
}

.flow-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 0;
    font-size: 0.875rem;
    color: var(--text-2);
    border-bottom: 1px solid var(--border);
}

.flow-step:last-child {
    border-bottom: none;
}

.flow-num {
    width: 24px;
    height: 24px;
    min-width: 24px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--white);
    box-shadow: 0 2px 8px rgba(0, 100, 204, 0.3);
}

/* ===== Security ===== */
.security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.security-card {
    background: var(--white);
    border: 1px solid var(--border);
    padding: 32px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.security-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-card-hover);
}

.security-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.security-card-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.security-card:hover .security-card-icon {
    background: var(--gradient);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.security-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
}

.security-card ul {
    list-style: none;
}

.security-card li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-2);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
}

.security-card li::before {
    content: '▸';
    color: var(--primary);
    font-size: 0.8rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.security-card li:last-child {
    border-bottom: none;
}

.security-card li strong {
    color: var(--dark);
}

/* ===== Blockchain ===== */
.blockchain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.blockchain-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.blockchain-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s;
}

.blockchain-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-5px);
}

.blockchain-card:hover::after {
    opacity: 1;
}

.bc-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    transition: var(--transition);
}

.blockchain-card:hover .bc-icon {
    background: var(--gradient);
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.blockchain-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.blockchain-card p {
    font-size: 0.875rem;
    color: var(--text-2);
    line-height: 1.65;
}

.tokenomics-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.token-stat-card {
    background: var(--gradient);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    align-items: center;
    gap: 24px;
    box-shadow: var(--shadow-glow);
}

.token-stat-num {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.token-stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

.token-stat-label strong {
    display: block;
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 4px;
}

/* ===== Tech Stack ===== */
.tech-stack {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.tech-item {
    background: var(--white);
    border: 1px solid var(--border);
    padding: 28px 12px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.tech-item:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-glow);
}

.tech-logo {
    width: 56px;
    height: 56px;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--primary-darker);
    letter-spacing: -0.02em;
    transition: var(--transition);
}

.tech-item:hover .tech-logo {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.tech-item h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--dark);
}

.tech-item p {
    font-size: 0.78rem;
    color: var(--text-3);
}

/* ===== Roadmap ===== */
.roadmap {
    position: relative;
    max-width: 820px;
    margin: 0 auto;
}

.roadmap::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--border));
}

.roadmap-item {
    display: flex;
    gap: 32px;
    margin-bottom: 36px;
    position: relative;
}

.roadmap-marker {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
    position: relative;
    z-index: 1;
    border: 2px solid var(--border);
}

.roadmap-marker.done {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.roadmap-marker.active {
    background: var(--white);
    border-color: var(--primary);
    color: var(--primary);
    animation: pulse-ring 2s infinite;
}

.roadmap-marker.planned {
    background: var(--bg-2);
    border-color: var(--border);
    color: var(--text-3);
}

@keyframes pulse-ring {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 170, 255, 0.3);
    }

    70% {
        box-shadow: 0 0 0 10px transparent;
    }

    100% {
        box-shadow: 0 0 0 0 transparent;
    }
}

.roadmap-content {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    flex: 1;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.roadmap-content:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-card-hover);
}

.roadmap-phase {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.roadmap-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 14px;
}

.roadmap-content ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.roadmap-content li {
    font-size: 0.875rem;
    color: var(--text-2);
    display: flex;
    align-items: center;
    gap: 8px;
}

.roadmap-content li::before {
    content: '✓';
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
}

.roadmap-marker.planned~.roadmap-content li::before {
    content: '○';
    color: var(--text-3);
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
    box-shadow: var(--shadow-card);
}

.faq-item.active {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-glow);
}

.faq-question {
    width: 100%;
    padding: 22px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    gap: 16px;
    transition: color 0.3s;
}

.faq-question:hover {
    color: var(--primary-dark);
}

.faq-icon {
    width: 28px;
    height: 28px;
    min-width: 28px;
    border: 1.5px solid var(--border-strong);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--primary);
    transition: transform 0.3s, background 0.3s, border-color 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer-inner {
    padding: 0 28px 24px;
    border-top: 1px solid var(--border);
}

.faq-answer-inner p {
    color: var(--text-2);
    line-height: 1.75;
    padding-top: 16px;
    font-size: 0.95rem;
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 80px 0;
    background: var(--gradient);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 48px 48px;
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 20px;
    color: var(--white);
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--primary-darker);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.cta-section .btn-primary:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.cta-section .btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.5);
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--white);
    color: var(--white);
    box-shadow: none;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0 0;
    border-top: 3px solid var(--primary);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.4fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-brand img {
    height: 44px;
    width: auto;
    margin-bottom: 16px;
}

.footer-brand-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: -0.03em;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    line-height: 1.65;
    max-width: 280px;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 24px;
}

.social-btn {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1rem;
    transition: var(--transition);
    color: rgba(255, 255, 255, 0.5);
}

.social-btn:hover {
    background: var(--primary);
    border-color: transparent;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    padding: 7px 0;
    font-size: 0.9rem;
    transition: color 0.3s;
    border-bottom: 1px solid transparent;
}

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

.footer-bottom {
    padding: 28px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p,
.footer-bottom span {
    color: rgba(255, 255, 255, 0.35);
    font-size: 0.875rem;
}

.tech-pills {
    display: flex;
    gap: 8px;
}

.tech-pill {
    background: rgba(0, 170, 255, 0.12);
    border: 1px solid rgba(0, 170, 255, 0.2);
    color: var(--primary-light);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 50px;
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s ease-out, transform 0.65s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-delay-1 {
    transition-delay: 0.1s;
}

.fade-in-delay-2 {
    transition-delay: 0.2s;
}

.fade-in-delay-3 {
    transition-delay: 0.3s;
}

/* Particle canvas */
#particles-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.6;
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-stack {
        grid-template-columns: repeat(3, 1fr);
    }

    .arch-wrapper {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

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

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

    .hero-visual {
        order: -1;
    }

    .network-diagram {
        width: 320px;
        height: 280px;
    }

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        backdrop-filter: blur(20px);
        box-shadow: 0 8px 32px rgba(0, 80, 160, 0.12);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .section {
        padding: 70px 0;
    }

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

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

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

    .roadmap::before {
        display: none;
    }

    .roadmap-item {
        flex-direction: column;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .network-diagram {
        width: 280px;
        height: 240px;
    }
}

/* ===== Donate Section ===== */
.donate-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.donate-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-card);
}

.donate-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}

.donate-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--primary-darker);
    transition: var(--transition);
}

.donate-card:hover .donate-icon {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.donate-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.donate-address-label {
    font-size: 0.78rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
    font-weight: 600;
}

.donate-address-wrap {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
}

.donate-address {
    background: var(--bg-2);
    border: 1px solid var(--border);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    word-break: break-all;
    text-align: center;
    color: var(--text-2);
    width: 100%;
    font-weight: 500;
}

.donate-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: var(--gradient);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-glow);
}

.donate-copy-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-lg);
}

.donate-message {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    padding: 32px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.donate-message p {
    color: var(--text-2);
    line-height: 1.75;
    margin-bottom: 12px;
    font-size: 1rem;
}

.donate-message p:last-child {
    margin-bottom: 0;
}

.donate-message a {
    color: var(--primary-dark);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.donate-message a:hover {
    color: var(--primary);
}

/* ===== Copy Toast ===== */
.copy-toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--dark);
    color: var(--white);
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease-out, transform 0.35s ease-out;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    text-align: center;
    line-height: 1.5;
}

.copy-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.copy-toast small {
    font-weight: 400;
    opacity: 0.6;
    font-size: 0.75rem;
}

.copy-toast-icon {
    display: inline-block;
    color: #4ADE80;
    margin-right: 4px;
}

@media (max-width: 1100px) {
    .donate-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .donate-grid {
        grid-template-columns: 1fr;
    }

    .copy-toast {
        bottom: 20px;
        left: 20px;
        right: 20px;
        transform: translateY(20px);
    }

    .copy-toast.visible {
        transform: translateY(0);
    }
}

/* ================================================================
   Download Modal — мини-окно подтверждения скачивания APK
   Решает проблему мобильных браузеров, которые блокируют
   программный window.location.href и динамические <a>.click()
   ================================================================ */
.download-overlay {
    position: fixed;
    inset: 0;
    background: rgba(13, 27, 42, 0.65);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-out;
}

.download-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.download-modal {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 400px;
    transform: translateY(16px) scale(0.96);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.download-overlay.active .download-modal {
    transform: translateY(0) scale(1);
}

.download-modal-header {
    padding: 24px 28px 0;
    text-align: center;
}

.download-modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.download-modal-body {
    padding: 20px 28px 28px;
    text-align: center;
}

.download-filename {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--text-3);
    background: var(--bg-3);
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    margin-bottom: 24px;
    word-break: break-all;
    border: 1px solid var(--border);
}

.download-modal-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.download-confirm-link {
    text-align: center;
    font-size: 1rem;
    padding: 14px 28px;
    width: 100%;
    text-decoration: none;
}

.download-cancel-btn {
    width: 100%;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-2);
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 50px;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.download-cancel-btn:hover {
    background: var(--bg-3);
    color: var(--text);
}

/* Мобильная адаптация */
@media (max-width: 480px) {
    .download-modal {
        width: calc(100% - 32px);
        margin: 0 16px;
    }

    .download-modal-header {
        padding: 20px 20px 0;
    }

    .download-modal-body {
        padding: 16px 20px 24px;
    }

    .download-modal-header h3 {
        font-size: 1.15rem;
    }
}