/* ===== CSS Variables ===== */
:root {
    --color-bg: #0c0c0f;
    --color-bg-elevated: #12121a;
    --color-bg-card: #16161f;
    --color-bg-card-hover: #1c1c28;
    --color-surface: #1e1e2a;
    
    --color-text: #f0f0f5;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6a6a7a;
    
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    
    --color-accent: #22d3ee;
    --color-accent-glow: rgba(34, 211, 238, 0.15);
    
    --color-success: #10b981;
    --color-border: #2a2a3a;
    --color-border-light: #3a3a4a;
    
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    --gradient-text: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent) 100%);
    --gradient-glow: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
    
    --font-main: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --transition-fast: 0.15s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px var(--color-accent-glow);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

/* ===== Background Effects ===== */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: -1;
}

.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

.bg-glow-1 {
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: rgba(99, 102, 241, 0.15);
}

.bg-glow-2 {
    bottom: -20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: rgba(34, 211, 238, 0.1);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(12, 12, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.nav.scrolled {
    border-bottom-color: var(--color-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-text);
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 1.125rem;
    color: white;
}

.logo-text {
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-email {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.nav-email:hover {
    color: var(--color-accent);
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    padding: 24px;
    flex-direction: column;
    gap: 16px;
    z-index: 999;
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu a {
    color: var(--color-text);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    padding: 140px 24px 100px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px 8px 10px;
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.2);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.title-line {
    display: block;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.title-line:nth-child(1) { animation-delay: 0.1s; }
.title-line:nth-child(2) { animation-delay: 0.2s; }

.title-accent {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 480px;
    animation: fadeInUp 0.6s ease 0.3s forwards;
    opacity: 0;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    animation: fadeInUp 0.6s ease 0.4s forwards;
    opacity: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    font-family: var(--font-main);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
}

.hero-visual {
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.5s forwards;
    opacity: 0;
}

.code-window {
    width: 100%;
    max-width: 480px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-border-light);
}

.code-dot:nth-child(1) { background: #ff5f57; }
.code-dot:nth-child(2) { background: #febc2e; }
.code-dot:nth-child(3) { background: #28c840; }

.code-title {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.code-content {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-keyword { color: #c792ea; }
.code-func { color: #82aaff; }
.code-type { color: #ffcb6b; }
.code-prop { color: var(--color-accent); }
.code-comment { color: var(--color-text-muted); }

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

/* ===== Stats Section ===== */
.stats {
    padding: 60px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
}

.stats-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.stat-item {
    text-align: center;
    padding: 0 30px;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-text {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent);
}

.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: var(--color-border);
}

/* ===== Section Styles ===== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

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

.section-desc {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== Services Section ===== */
.services {
    padding: 120px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: var(--transition);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card.featured {
    border-color: rgba(99, 102, 241, 0.3);
    background: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, var(--color-bg-card) 100%);
}

.service-card.featured::before {
    transform: scaleX(1);
}

.service-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: var(--gradient-primary);
    border-radius: 100px;
    font-size: 0.6875rem;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius);
    margin-bottom: 24px;
    color: var(--color-primary-light);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: rgba(99, 102, 241, 0.15);
    transform: scale(1.05);
}

.service-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.service-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.service-features {
    list-style: none;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.service-features li {
    position: relative;
    padding-left: 20px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 10px;
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

.service-features li:last-child {
    margin-bottom: 0;
}

/* ===== About Section ===== */
.about {
    padding: 120px 0;
    background: var(--color-bg-elevated);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 28px;
}

.about-text {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-features {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-feature {
    display: flex;
    gap: 16px;
}

.feature-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(34, 211, 238, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-accent);
}

.about-feature h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.about-visual {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.visual-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}

.visual-card:hover {
    border-color: var(--color-border-light);
    transform: translateX(8px);
}

.visual-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.visual-icon {
    font-size: 1.5rem;
}

.visual-title {
    font-weight: 600;
    font-size: 1rem;
}

.visual-card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===== Contact Section ===== */
.contact {
    padding: 120px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.contact-text {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text-muted);
}

.contact-item a {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.response-time {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px;
    background: rgba(34, 211, 238, 0.05);
    border: 1px solid rgba(34, 211, 238, 0.1);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--color-accent);
}

.contact-form-wrapper {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-main);
    font-size: 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    transition: var(--transition);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.form-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 18px;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.form-btn:active {
    transform: translateY(0);
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 40px;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-text);
}

.footer-tagline {
    margin-top: 12px;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
        padding-top: 120px;
    }

    .hero-tagline {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

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

    .services-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-content .section-title {
        text-align: center;
    }

    .about-text {
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .contact-info .section-title {
        text-align: center;
    }

    .contact-text {
        text-align: center;
    }

    .contact-details {
        align-items: center;
    }

    .response-time {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-email {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu {
        display: flex;
    }

    .nav-cta {
        padding: 8px 16px;
    }

    .nav-cta span {
        display: none;
    }

    .hero {
        padding: 100px 20px 60px;
        min-height: auto;
    }

    .hero-visual {
        display: none;
    }

    .stats-grid {
        flex-direction: column;
        gap: 30px;
    }

    .stat-divider {
        width: 60px;
        height: 1px;
    }

    .services {
        padding: 80px 0;
    }

    .about {
        padding: 80px 0;
    }

    .contact {
        padding: 80px 0;
    }

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

    .contact-form-wrapper {
        padding: 28px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .btn {
        padding: 14px 24px;
        width: 100%;
        justify-content: center;
    }

    .hero-actions {
        flex-direction: column;
    }

    .stat-number {
        font-size: 2rem;
    }

    .service-card {
        padding: 28px 24px;
    }
}