/* XYLOS Ultra Premium Design System - Inspired by Top-Tier Agencies */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Premium Colors */
    --xylos-purple: #d946ef;
    --xylos-purple-dark: #a21caf;
    --xylos-purple-light: #f0abfc;
    --xylos-gold: #eab308;
    --xylos-gold-dark: #ca8a04;
    --xylos-gold-light: #fde047;
    
    /* Dark Theme */
    --xylos-black: #000000;
    --xylos-dark: #0a0a0a;
    --xylos-dark-surface: #141414;
    --xylos-gray: #1a1a1a;
    --xylos-gray-light: #2a2a2a;
    --xylos-gray-border: #333333;
    
    /* Text */
    --xylos-white: #ffffff;
    --xylos-white-90: rgba(255, 255, 255, 0.9);
    --xylos-white-70: rgba(255, 255, 255, 0.7);
    --xylos-white-50: rgba(255, 255, 255, 0.5);
    --xylos-white-30: rgba(255, 255, 255, 0.3);
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --ease-in-out-expo: cubic-bezier(0.87, 0, 0.13, 1);
    --spring: cubic-bezier(0.43, 0.09, 0.38, 2.56);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    background: var(--xylos-black);
}

body {
    font-family: var(--font-body);
    color: var(--xylos-white);
    background: var(--xylos-black);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Cursor */
.cursor {
    width: 40px;
    height: 40px;
    border: 2px solid var(--xylos-purple);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: all 0.3s var(--ease-out-expo);
    z-index: 9999;
    mix-blend-mode: difference;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--xylos-purple);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 10000;
}

.cursor.hover {
    width: 80px;
    height: 80px;
    background: rgba(217, 70, 239, 0.1);
    border-color: var(--xylos-gold);
}

/* Smooth Scroll Container */
.smooth-scroll-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    will-change: transform;
}

/* Loading Screen - Ultimate Minimal Design */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--xylos-black);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 1.2s var(--ease-out-expo),
                transform 1.2s var(--ease-out-expo);
}

.loading-screen.loaded {
    opacity: 0;
    transform: scale(1.1);
    pointer-events: none;
}

.loading-container {
    text-align: center;
    position: relative;
}

/* Logo Wrapper with Lines */
.loading-logo-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 3rem;
}

.logo-line-top,
.logo-line-bottom {
    position: absolute;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--xylos-purple) 20%, 
        var(--xylos-gold) 50%,
        var(--xylos-purple) 80%,
        transparent 100%);
    opacity: 0;
    animation: lineReveal 1.5s ease-out 0.5s forwards;
}

.logo-line-top {
    top: -20px;
    left: 0;
}

.logo-line-bottom {
    bottom: -20px;
    left: 0;
}

@keyframes lineReveal {
    from {
        opacity: 0;
        transform: scaleX(0);
    }
    to {
        opacity: 1;
        transform: scaleX(1);
    }
}

/* Sophisticated Logo Animation */
.loading-logo {
    font-size: 4rem;
    font-weight: 300;
    font-family: var(--font-display);
    letter-spacing: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
}

.logo-letter {
    display: inline-block;
    position: relative;
    color: transparent;
    animation: letterReveal 1s var(--ease-out-expo) forwards;
    transform: translateY(50px);
    opacity: 0;
}

.logo-letter:nth-child(1) { animation-delay: 0.1s; }
.logo-letter:nth-child(2) { animation-delay: 0.2s; }
.logo-letter:nth-child(3) { animation-delay: 0.3s; }
.logo-letter:nth-child(4) { animation-delay: 0.4s; }
.logo-letter:nth-child(5) { animation-delay: 0.5s; }

@keyframes letterReveal {
    0% {
        opacity: 0;
        transform: translateY(50px) rotateX(-90deg);
        filter: blur(10px);
    }
    50% {
        opacity: 1;
        color: var(--xylos-white);
        filter: blur(0);
    }
    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0);
        color: var(--xylos-white);
        filter: blur(0);
    }
}

/* Sophisticated hover effect on letters */
.logo-letter::before {
    content: attr(data-letter);
    position: absolute;
    top: 0;
    left: 0;
    color: var(--xylos-purple);
    opacity: 0;
    transform: translateY(-5px);
    transition: all 0.3s var(--ease-out-expo);
}

.logo-letter::after {
    content: attr(data-letter);
    position: absolute;
    top: 0;
    left: 0;
    color: var(--xylos-gold);
    opacity: 0;
    transform: translateY(5px);
    transition: all 0.3s var(--ease-out-expo);
}

.loading-logo:hover .logo-letter::before {
    opacity: 0.5;
    transform: translateY(-8px);
}

.loading-logo:hover .logo-letter::after {
    opacity: 0.5;
    transform: translateY(8px);
}

/* Minimal Progress Indicator */
.loading-progress-minimal {
    width: 60px;
    height: 1px;
    background: var(--xylos-gray);
    margin: 0 auto 2rem;
    position: relative;
    opacity: 0;
    animation: fadeIn 0.5s ease-out 1s forwards;
}

.progress-dot {
    position: absolute;
    top: 50%;
    left: 0;
    width: 20px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--xylos-purple), transparent);
    transform: translateY(-50%);
    animation: dotSlide 2s ease-in-out infinite;
}

@keyframes dotSlide {
    0% { left: 0; }
    50% { left: calc(100% - 20px); }
    100% { left: 0; }
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Tagline Animation */
.loading-tagline {
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--xylos-white-50);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.2s forwards;
}

.tagline-word {
    display: inline-block;
    margin: 0 0.5rem;
    transition: all 0.3s var(--ease-out-expo);
}

.tagline-dot {
    display: inline-block;
    color: var(--xylos-purple);
    opacity: 0.5;
}

.loading-tagline:hover .tagline-word {
    color: var(--xylos-white-70);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Premium shimmer effect */
.loading-logo-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 45%,
        rgba(217, 70, 239, 0.1) 50%,
        transparent 55%
    );
    animation: shimmer 3s ease-in-out infinite;
}

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 2rem 4rem;
    transition: all 0.6s var(--ease-out-expo);
}

.nav.scrolled {
    padding: 1rem 4rem;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    mix-blend-mode: normal;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1600px;
    margin: 0 auto;
}

.nav-logo {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-display);
    letter-spacing: -0.02em;
    text-decoration: none;
    color: var(--xylos-white);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-symbol {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--xylos-purple) 0%, var(--xylos-gold) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    position: relative;
    overflow: hidden;
}

.logo-symbol::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    transition: all 0.6s;
}

.nav-logo:hover .logo-symbol::before {
    animation: shine 0.6s ease-in-out;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.nav-menu {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    color: var(--xylos-white);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--xylos-purple);
    transform: translateX(-101%);
    transition: transform 0.3s var(--ease-out-expo);
}

.nav-link:hover::before {
    transform: translateX(0);
}

.nav-cta {
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, var(--xylos-purple) 0%, var(--xylos-gold) 100%);
    color: white;
    text-decoration: none;
    border-radius: 100px;
    font-weight: 600;
    transition: all 0.3s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.nav-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--xylos-gold) 0%, var(--xylos-purple) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(217, 70, 239, 0.3);
}

.nav-cta:hover::before {
    opacity: 1;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--xylos-black);
    padding-top: 120px; /* Account for fixed nav */
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.hero-bg-gradient {
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background: radial-gradient(circle at 50% 50%, var(--xylos-purple) 0%, transparent 50%);
    filter: blur(100px);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 700;
    font-family: var(--font-display);
    line-height: 0.9;
    letter-spacing: -0.04em;
    margin-bottom: 2rem;
}

.hero-title-line {
    display: block;
    overflow: hidden;
}

.hero-title-word {
    display: inline-block;
    transform: translateY(100%);
    animation: revealWord 0.8s var(--ease-out-expo) forwards;
}

.hero-title-word:nth-child(1) { animation-delay: 0.1s; }
.hero-title-word:nth-child(2) { animation-delay: 0.2s; }
.hero-title-word:nth-child(3) { animation-delay: 0.3s; }

@keyframes revealWord {
    to { transform: translateY(0); }
}

.hero-title-gradient {
    background: linear-gradient(135deg, var(--xylos-purple) 0%, var(--xylos-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 300;
    color: var(--xylos-white-70);
    max-width: 800px;
    margin: 0 auto 3rem;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.5s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
    from {
        opacity: 0;
        transform: translateY(30px);
    }
}

.hero-cta-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 0.8s var(--ease-out-expo) 0.7s forwards;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 3rem;
    background: linear-gradient(135deg, var(--xylos-purple) 0%, var(--xylos-gold) 100%);
    color: white;
    text-decoration: none;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 3rem;
    background: transparent;
    color: var(--xylos-white);
    text-decoration: none;
    border: 2px solid var(--xylos-gray-border);
    border-radius: 100px;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s var(--ease-out-expo);
}

.btn-secondary:hover {
    border-color: var(--xylos-purple);
    color: var(--xylos-purple);
    transform: translateY(-2px);
}

/* Section Styles */
.section {
    padding: 10rem 0;
    position: relative;
    overflow: hidden;
}

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

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
    position: relative;
    z-index: 2;
}

.section-header {
    margin-bottom: 5rem;
}

.section-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--xylos-purple);
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(20px);
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    font-family: var(--font-display);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--xylos-white-70);
    max-width: 600px;
    opacity: 0;
    transform: translateY(20px);
}

/* Feature Cards with Hover Effects */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--xylos-gray);
    border: 1px solid var(--xylos-gray-border);
    border-radius: 24px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    transition: all 0.5s var(--ease-out-expo);
    opacity: 0;
    transform: translateY(30px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--mouse-x) var(--mouse-y), rgba(217, 70, 239, 0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--xylos-purple);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--xylos-purple) 0%, var(--xylos-gold) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    transition: transform 0.3s var(--ease-out-expo);
}

.feature-card:hover .feature-icon {
    transform: rotate(-10deg) scale(1.1);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.feature-description {
    color: var(--xylos-white-70);
    line-height: 1.7;
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-out-expo);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.8s var(--ease-out-expo);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Parallax Elements */
.parallax-element {
    position: absolute;
    will-change: transform;
}

.parallax-slow {
    transition: transform 0.8s var(--ease-out-expo);
}

/* Sticky Sections */
.sticky-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10rem 0;
}

.sticky-content {
    position: sticky;
    top: 50%;
    transform: translateY(-50%);
}

/* Text Split Animation */
.split-text {
    overflow: hidden;
}

.split-text span {
    display: inline-block;
    transform: translateY(100%);
    transition: transform 0.8s var(--ease-out-expo);
}

.split-text.active span {
    transform: translateY(0);
}

.split-text span:nth-child(1) { transition-delay: 0.05s; }
.split-text span:nth-child(2) { transition-delay: 0.1s; }
.split-text span:nth-child(3) { transition-delay: 0.15s; }
.split-text span:nth-child(4) { transition-delay: 0.2s; }
.split-text span:nth-child(5) { transition-delay: 0.25s; }

/* Mouse Follow Container */
.mouse-follow {
    position: absolute;
    pointer-events: none;
    transition: transform 0.1s linear;
}

/* Blend Modes */
.blend-difference {
    mix-blend-mode: difference;
}

.blend-screen {
    mix-blend-mode: screen;
}

.blend-multiply {
    mix-blend-mode: multiply;
}

/* Noise Texture */
.noise-texture {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    z-index: 1;
    pointer-events: none;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMDAiIGhlaWdodD0iMzAwIj48ZmlsdGVyIGlkPSJhIj48ZmVUdXJidWxlbmNlIGJhc2VGcmVxdWVuY3k9Ii43NSIgbnVtT2N0YXZlcz0iNCIgc3RpdGNoVGlsZXM9InN0aXRjaCIvPjwvZmlsdGVyPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbHRlcj0idXJsKCNhKSIgb3BhY2l0eT0iMSIvPjwvc3ZnPg==');
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        padding: 1.5rem 2rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .container {
        padding: 0 2rem;
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 8vw, 4rem);
    }
    
    .hero-cta-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}