/* ===================================
   VARIABLES & RESET
   =================================== */

:root {
    /* Colorful Palette */
    --color-primary: #667eea;
    --color-secondary: #764ba2;
    --color-accent-1: #f093fb;
    --color-accent-2: #f5576c;
    --color-accent-3: #4facfe;
    --color-accent-4: #00f2fe;
    
    /* Neutrals */
    --color-bg: #0f0f1e;
    --color-bg-light: #1a1a2e;
    --color-bg-lighter: #25254d;
    --color-text: #ffffff;
    --color-text-muted: #a0a0c0;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-main);
    
    /* Effects */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   NAVIGATION
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 15, 30, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-image {
    height: 40px;
    width: auto;
    border-radius: 8px;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent-1));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent-1));
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(240, 147, 251, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.6s ease-out;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.gradient-text {
    display: block;
    background: linear-gradient(135deg, 
        var(--color-primary) 0%, 
        var(--color-accent-1) 50%,
        var(--color-accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: gradientShift 3s ease infinite, fadeInUp 0.6s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Floating Cards Animation */
.hero-decoration {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    border-radius: 20px;
    backdrop-filter: blur(5px);
}

.card-1 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border: 1px solid rgba(102, 126, 234, 0.2);
    animation: float 6s ease-in-out infinite;
    right: 100px;
    top: 50px;
}

.card-2 {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.1), rgba(245, 87, 108, 0.1));
    border: 1px solid rgba(240, 147, 251, 0.2);
    animation: float 8s ease-in-out infinite;
    right: 50px;
    top: 200px;
    backdrop-filter: blur(2px);
}

.card-3 {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1), rgba(0, 242, 254, 0.1));
    border: 1px solid rgba(79, 172, 254, 0.2);
    animation: float 7s ease-in-out infinite;
    right: 200px;
    top: 300px;
    backdrop-filter: blur(2px);
}

/* ===================================
   SECTION STYLES
   =================================== */

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

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

/* ===================================
   ABOUT SECTION
   =================================== */

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

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.skill-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 50px;
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.skill-tag:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

/* ===================================
   PROJECTS SECTION
   =================================== */

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

.project-card {
    background: var(--color-bg-light);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 400px;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
        var(--color-primary), 
        var(--color-accent-1),
        var(--color-accent-2));
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
}

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

.project-icon {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.project-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: rgba(102, 126, 234, 0.15);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    letter-spacing: 0.5px;
    width: fit-content;
}

.project-badge.in-dev {
    background: rgba(79, 172, 254, 0.15);
    color: var(--color-accent-3);
    border-color: var(--color-accent-3);
}

.project-badge.paid {
    background: rgba(240, 147, 251, 0.15);
    color: var(--color-accent-1);
    border-color: var(--color-accent-1);
}

/* ===================================
   FAQ PAGE
   =================================== */

.faq-hero {
    min-height: 60vh;
    padding-top: 100px;
}

.faq-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-light);
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.faq-question {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.faq-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.faq-answer {
    color: var(--color-text-muted);
    line-height: 1.8;
    padding-left: calc(1.5rem + var(--spacing-sm));
}

.faq-answer p {
    margin: 0;
}

.faq-cta {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-description {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.project-tags {
    display: none;
}

.project-links {
    margin-top: auto;
    padding-top: var(--spacing-sm);
}

.project-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    color: var(--color-accent-1);
    transform: translateX(4px);
}

/* ===================================
   CONTACT SECTION
   =================================== */

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

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-description {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.contact-form {
    max-width: 500px;
    margin: 0 auto var(--spacing-lg) auto;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--color-text);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 0.6;
}

.contact-form .btn {
    width: 100%;
    cursor: pointer;
}

.contact-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.contact-button:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-button svg {
    width: 24px;
    height: 24px;
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    padding: var(--spacing-md) 0;
    text-align: center;
    color: var(--color-text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-text {
    font-size: 0.95rem;
    line-height: 1.8;
    margin: 0;
}

.footer-text .node-logo {
    display: inline-block;
    vertical-align: middle;
    color: #68a063;
    margin: 0 0.25rem;
}

/* ===================================
   ANIMATIONS
   =================================== */

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

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

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

/* ===================================
   RESPONSIVE
   =================================== */

@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero-decoration {
        display: none;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        text-align: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .nav-links {
        font-size: 0.9rem;
        gap: var(--spacing-xs);
    }
}