:root {
    --color-primary: #8b5cf6;
    --color-primary-light: #a78bfa;
    --color-primary-dark: #7c3aed;
    --color-accent: #ec4899;
    --color-accent-light: #f472b6;
    --color-accent-dark: #db2777;
    --color-secondary: #06b6d4;
    --color-secondary-light: #22d3ee;
    --color-secondary-dark: #0891b2;
    --color-neon-purple: #c084fc;
    --color-neon-pink: #f0abfc;
    --color-neon-cyan: #67e8f9;
    --color-white: #ffffff;
    --color-gray-50: #faf5ff;
    --color-gray-100: #f3e8ff;
    --color-gray-200: #e9d5ff;
    --color-gray-300: #d8b4fe;
    --color-gray: #7c3aed;
    --color-gray-dark: #5b21b6;
    --color-gray-darker: #4c1d95;
    --color-text: #1e1b4b;
    --color-text-light: #4c1d95;
    --color-text-lighter: #7c3aed;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;

    --bg-light: #faf5ff;
    --bg-card: rgba(255, 255, 255, 0.95);
    --bg-card-hover: rgba(255, 255, 255, 1);
    --bg-gradient-start: #faf5ff;
    --bg-gradient-mid: #f0f9ff;
    --bg-gradient-end: #fef3c7;
    --bg-hero-start: #8b5cf6;
    --bg-hero-mid: #ec4899;
    --bg-hero-end: #06b6d4;

    --font-heading: 'Playfair Display', 'Noto Serif SC', Georgia, serif;
    --font-body: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-code: 'JetBrains Mono', 'Courier New', monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 3rem;
    --text-5xl: 4rem;
    --text-6xl: 5rem;

    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-2xl: 3rem;
    --radius-3xl: 4rem;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 15px rgba(139, 92, 246, 0.1);
    --shadow-md: 0 8px 30px rgba(139, 92, 246, 0.15);
    --shadow-lg: 0 15px 50px rgba(139, 92, 246, 0.25);
    --shadow-xl: 0 25px 80px rgba(139, 92, 246, 0.4);
    --shadow-glow-purple: 0 0 50px rgba(139, 92, 246, 0.5);
    --shadow-glow-pink: 0 0 50px rgba(236, 72, 153, 0.5);
    --shadow-glow-cyan: 0 0 50px rgba(6, 182, 212, 0.5);

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    --max-width: 1400px;
    --max-width-content: 1000px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--color-text);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 10% 10%, rgba(251, 191, 36, 0.06) 0%, transparent 30%);
    pointer-events: none;
    z-index: -1;
    animation: bg-pulse 10s ease-in-out infinite;
}

@keyframes bg-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 1px 1px, rgba(139, 92, 246, 0.1) 1px, transparent 0);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: -1;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--text-5xl);
}

h2 {
    font-size: var(--text-4xl);
}

h3 {
    font-size: var(--text-3xl);
}

h4 {
    font-size: var(--text-2xl);
}

h5 {
    font-size: var(--text-xl);
}

h6 {
    font-size: var(--text-lg);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: all var(--transition-base);
}

a:hover {
    color: var(--color-accent);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

code, pre {
    font-family: var(--font-code);
    background-color: rgba(139, 92, 246, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.9em;
    color: var(--color-primary);
}

pre {
    padding: var(--spacing-lg);
    overflow-x: auto;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

::selection {
    background-color: rgba(236, 72, 153, 0.3);
    color: var(--color-text);
}

::-webkit-scrollbar {
    width: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
    border: 3px solid var(--bg-gradient-start);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.content-wrapper {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.section {
    padding: var(--spacing-4xl) var(--spacing-lg);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-full);
    box-shadow: 0 0 20px rgba(236, 72, 153, 0.4);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-lighter);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

.main-content {
    min-height: calc(100vh - 80px);
    padding-top: 80px;
}

.gradient-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.gradient-hero {
    background: linear-gradient(135deg, #4c1d95 0%, #7c3aed 30%, #db2777 60%, #0891b2 100%);
    position: relative;
    overflow: hidden;
}

.gradient-hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -20%;
    width: 900px;
    height: 900px;
    background: radial-gradient(circle, rgba(192, 132, 252, 0.3) 0%, rgba(240, 171, 252, 0.15) 40%, transparent 70%);
    border-radius: 50%;
    animation: float-orb 15s ease-in-out infinite;
}

.gradient-hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(103, 232, 249, 0.25) 0%, rgba(236, 72, 153, 0.15) 40%, transparent 70%);
    border-radius: 50%;
    animation: float-orb 20s ease-in-out infinite reverse;
}

@keyframes float-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.gradient-light {
    background: linear-gradient(180deg, rgba(192, 132, 252, 0.1) 0%, rgba(250, 245, 255, 0.8) 100%);
}

.bg-gray-50 {
    background-color: rgba(250, 245, 255, 0.5);
}

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

.text-white { color: var(--color-white); }
.text-gray { color: var(--color-text-lighter); }
.text-gray-dark { color: var(--color-text-light); }
.text-primary { color: var(--color-primary); }
.text-primary-light { color: var(--color-primary-light); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }

.text-bold { font-weight: 800; }
.text-semibold { font-weight: 600; }
.text-medium { font-weight: 500; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 14px 32px;
    font-size: var(--text-base);
    font-weight: 700;
    font-family: var(--font-body);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    line-height: 1.5;
    white-space: nowrap;
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 50%, var(--color-secondary) 100%);
    background-size: 200% 200%;
    color: var(--color-white);
    box-shadow: 0 4px 20px rgba(236, 72, 153, 0.4), 0 0 0 1px rgba(236, 72, 153, 0.2);
    animation: gradient-shift-btn 4s ease-in-out infinite;
}

@keyframes gradient-shift-btn {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(236, 72, 153, 0.5), 0 0 0 1px rgba(236, 72, 153, 0.3), var(--shadow-glow-pink);
    color: var(--color-white);
}

.btn-primary:active {
    transform: translateY(-2px) scale(1);
}

.btn-secondary {
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    background: rgba(236, 72, 153, 0.15);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 35px rgba(236, 72, 153, 0.25), var(--shadow-glow-pink);
    color: var(--color-accent);
}

.btn-outline-white {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-white);
    transform: translateY(-4px) scale(1.02);
    color: var(--color-white);
    box-shadow: 0 12px 35px rgba(255, 255, 255, 0.2);
}

.btn-lg {
    padding: 18px 44px;
    font-size: var(--text-lg);
    border-radius: var(--radius-full);
}

.btn-sm {
    padding: 10px 22px;
    font-size: var(--text-sm);
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(139, 92, 246, 0.15);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    border-color: rgba(236, 72, 153, 0.4);
    box-shadow: var(--shadow-xl);
    transform: translateY(-10px) scale(1.02);
    background: var(--bg-card-hover);
}

.card-feature {
    padding: var(--spacing-2xl);
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(139, 92, 246, 0.15);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.card-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card-feature::after {
    content: '';
    position: absolute;
    top: -60%;
    right: -60%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    transition: all var(--transition-base);
}

.card-feature:hover {
    border-color: transparent;
    box-shadow: var(--shadow-xl);
    transform: translateY(-12px) scale(1.02);
}

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

.card-feature:hover::after {
    top: -30%;
    right: -30%;
}

@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }

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

    .section {
        padding: var(--spacing-3xl) var(--spacing-md);
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    h1 {
        font-size: var(--text-4xl);
    }

    h2, .section-title {
        font-size: var(--text-3xl);
    }

    h3 {
        font-size: var(--text-xl);
    }

    .section {
        padding: var(--spacing-2xl) var(--spacing-md);
    }

    .section-header {
        margin-bottom: var(--spacing-2xl);
    }

    .content-wrapper {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .btn {
        padding: 12px 26px;
    }

    .btn-lg {
        padding: 16px 32px;
    }

    .card:hover {
        transform: translateY(-4px) scale(1);
    }

    .card-feature:hover {
        transform: translateY(-4px) scale(1);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }

    h1 {
        font-size: var(--text-3xl);
    }

    h2, .section-title {
        font-size: var(--text-2xl);
    }

    h3 {
        font-size: var(--text-lg);
    }
}