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

:root {
    --bg-white: #ffffff;
    --text-dark: #202124;
    --text-gray: #5f6368;
    --accent: #8ab4f8;
    --border: #e8eaed;
}

body {
    font-family: 'Google Sans', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-white);
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Navigation */
.header-wrapper {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

header {
    max-width: 1440px;
    margin: 0 auto;
    padding: 16px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    font-size: 20px;
    font-weight: 400;
    color: var(--text-dark);
    letter-spacing: -0.3px;
}

nav ul {
    display: flex;
    gap: 32px;
    list-style: none;
}

nav a {
    text-decoration: none;
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.15s;
}

nav a:hover {
    background: #f1f3f4;
    color: var(--text-dark);
}

.nav-button {
    background: var(--text-dark);
    color: white;
    padding: 10px 24px;
    border-radius: 24px;
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-button:hover {
    background: #3c4043;
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-dark);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background 0.15s;
}

.menu-toggle:hover {
    background: #f1f3f4;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: white;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.3s ease, opacity 0.3s ease;
        pointer-events: none;
    }

    nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    nav ul {
        flex-direction: column;
        padding: 20px;
        gap: 0;
    }

    nav a {
        display: block;
        padding: 16px 12px;
        font-size: 16px;
        border-bottom: 1px solid var(--border);
    }

    nav ul li:last-child a {
        border-bottom: none;
    }

    .nav-button {
        display: none;
    }
}

/* Hero Section */
#welcome {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    position: relative;
    background: white;
    overflow: hidden;
}

/* Ring Particles Background */
.ring-container {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.particle-ring {
    position: absolute;
    width: 600px;
    height: 600px;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--text-gray);
    border-radius: 50%;
    opacity: 0.3;
    transition: all 0.3s ease;
}

.particle.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.3;
    }

    50% {
        transform: scale(1.5);
        opacity: 0.6;
    }
}

/* Floating decorative elements */
.floating-element {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.15;
}

.floating-element:nth-child(1) {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    top: 10%;
    left: 5%;
    animation: float-1 20s ease-in-out infinite;
}

.floating-element:nth-child(2) {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    top: 60%;
    right: 10%;
    animation: float-2 18s ease-in-out infinite;
}

.floating-element:nth-child(3) {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    bottom: 15%;
    left: 15%;
    animation: float-3 22s ease-in-out infinite;
}

.floating-element:nth-child(4) {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    top: 30%;
    right: 20%;
    animation: float-4 25s ease-in-out infinite;
}

@keyframes float-1 {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(30px, -30px) rotate(90deg);
    }

    50% {
        transform: translate(-20px, 40px) rotate(180deg);
    }

    75% {
        transform: translate(40px, 20px) rotate(270deg);
    }
}

@keyframes float-2 {

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

    33% {
        transform: translate(-40px, 30px) scale(1.2);
    }

    66% {
        transform: translate(30px, -40px) scale(0.8);
    }
}

@keyframes float-3 {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }

    50% {
        transform: translate(50px, -50px) rotate(360deg) scale(1.3);
    }
}

@keyframes float-4 {

    0%,
    100% {
        transform: translate(0, 0);
    }

    25% {
        transform: translate(-30px, 40px);
    }

    50% {
        transform: translate(40px, -30px);
    }

    75% {
        transform: translate(-40px, -40px);
    }
}

#welcome h1 {
    font-size: 72px;
    font-weight: 400;
    margin-bottom: 24px;
    line-height: 1.1;
    letter-spacing: -1px;
    z-index: 10;
    text-align: center;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
}

#welcome h1::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(138, 180, 248, 0.2) 50%,
            transparent 100%);
    animation: shimmer 3s ease-in-out infinite;
    pointer-events: none;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

#welcome p {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 40px;
    z-index: 10;
    text-align: center;
    max-width: 600px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
}

#welcome p span {
    display: block;
    /* background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #667eea); 
            background-size: 300% 100%;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradientFlow 8s ease infinite;*/
}

@keyframes gradientFlow {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cta {
    display: flex;
    gap: 12px;
    z-index: 10;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.6s forwards;
}

.cta button {
    padding: 12px 32px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
    position: relative;
    overflow: hidden;
}

.cta button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.cta button:hover::before {
    width: 300px;
    height: 300px;
}

.cta button:first-child {
    background: var(--text-dark);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta button:first-child:hover {
    background: #3c4043;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.cta button.secondary {
    background: white;
    color: var(--text-dark);
    border: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cta button.secondary:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.cta button span {
    position: relative;
    z-index: 1;
}

/* Content Sections */
section:not(#welcome) {
    padding: 120px 48px;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 64px;
    text-align: center;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 48px;
}

.feature-card {
    padding: 0;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
    font-size: 16px;
}

/* Benefits */
.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.benefit-item {
    padding: 24px;
    border-left: 2px solid var(--border);
    transition: all 0.3s;
}

.benefit-item:hover {
    border-left-color: var(--text-dark);
    transform: translateX(4px);
}

.benefit-item h4 {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.benefit-item p {
    color: var(--text-gray);
    font-size: 14px;
    line-height: 1.5;
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 120px 48px;
    background: #f8f9fa;
}

.cta-section h2 {
    font-size: 48px;
    margin-bottom: 16px;
}

.cta-section p {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 32px;
}

/* Footer */
footer {
    background: white;
    border-top: 1px solid var(--border);
    padding: 80px 48px 40px;
}

.footer-title {
    max-width: 1200px;
    margin: 0 auto 64px;
    font-size: 96px;
    font-weight: 400;
    color: var(--text-dark);
    letter-spacing: -2px;
}

.footer-title .letter {
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.footer-title .letter:nth-child(1) {
    animation-delay: 0s;
}

.footer-title .letter:nth-child(2) {
    animation-delay: 0.1s;
}

.footer-title .letter:nth-child(3) {
    animation-delay: 0.2s;
}

.footer-title .letter:nth-child(4) {
    animation-delay: 0.3s;
}

.footer-title .letter:nth-child(5) {
    animation-delay: 0.4s;
}

.footer-title .letter:nth-child(6) {
    animation-delay: 0.5s;
}

.footer-title .letter:nth-child(7) {
    animation-delay: 0.6s;
}

.footer-title .letter:nth-child(8) {
    animation-delay: 0.7s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 64px;
    margin-bottom: 64px;
}

.footer-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.footer-section p {
    color: var(--text-gray);
    line-height: 1.6;
    font-size: 14px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.15s;
}

.footer-section a:hover {
    color: var(--text-dark);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    color: var(--text-gray);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.15s;
}

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

/* Scroll Animation */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

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

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 16px 20px;
    }

    header .logo-container {
        flex: 1;
    }

    nav ul {
        display: flex;
    }

    #welcome h1 {
        font-size: 48px;
    }

    #welcome p {
        font-size: 18px;
        padding: 0 20px;
    }

    .cta {
        flex-direction: column;
        width: 100%;
        padding: 0 20px;
    }

    .cta button {
        width: 100%;
        justify-content: center;
    }

    section:not(#welcome) {
        padding: 80px 20px;
    }

    h2 {
        font-size: 36px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-title {
        font-size: 56px;
    }
}