:root {
    --primary: #d32f2f;
    --primary-dark: #b71c1c;
    --secondary: #0f172a;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #d32f2f 0%, #991b1b 100%);
    --shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--secondary);
}

.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--secondary);
}

.tech-tag {
    color: var(--primary);
    background: rgba(211, 47, 47, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.95rem;
    transition: 0.3s;
}

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

.nav-btn {
    background: var(--secondary);
    color: white !important;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
}

.nav-btn:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

/* Hero */
.hero {
    padding: 180px 0 100px;
    background: radial-gradient(circle at 10% 20%, rgba(211, 47, 47, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 90% 80%, rgba(15, 23, 42, 0.05) 0%, transparent 50%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    background: rgba(211, 47, 47, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
}

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

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 700;
    transition: 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 10px 15px -3px rgba(211, 47, 47, 0.3);
}

.btn-secondary {
    background: #f1f5f9;
    color: var(--secondary);
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Code Window */
.code-window {
    background: #1e293b;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

.window-header {
    padding: 1rem;
    background: #0f172a;
    display: flex;
    gap: 0.5rem;
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.red { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green { background: #27c93f; }

.code-content {
    padding: 2rem;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    color: #e2e8f0;
}

.keyword { color: #c678dd; }
.class-name { color: #e5c07b; }
.function { color: #61afef; }
.string { color: #98c379; }
.this { color: #e06c75; }

/* About */
.about { padding: 100px 0; }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-image-box img {
    width: 100%;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.sub-title {
    color: var(--primary);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    display: block;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.features-list {
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-item i { color: #22c55e; }

/* Services */
.services {
    padding: 100px 0;
    background: var(--bg-light);
    text-align: center;
}

.section-header { margin-bottom: 4rem; }

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: left;
    transition: 0.3s;
    border: 1px solid #f1f5f9;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    background: rgba(211, 47, 47, 0.05);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Portfolio */
.portfolio { padding: 100px 0; text-align: center; }
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.portfolio-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    height: 400px;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2.5rem;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
    color: white;
    text-align: left;
    opacity: 0;
    transition: 0.3s;
}

.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-item:hover img { transform: scale(1.1); }

/* Contact */
.contact { padding: 100px 0; }
.contact-card {
    background: var(--secondary);
    border-radius: 32px;
    padding: 5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    color: white;
}

.contact-info h2 { font-size: 3rem; margin-bottom: 1.5rem; }
.info-items { margin-top: 3rem; }
.info-item { display: flex; align-items: center; gap: 1.5rem; margin-bottom: 1.5rem; color: #cbd5e1; }
.info-item i { color: var(--primary); font-size: 1.2rem; }

.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.form-group { margin-bottom: 1.25rem; }
input, select, textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
}

.btn-full { width: 100%; justify-content: center; }

/* Footer */
footer { padding: 80px 0 40px; background: #020617; color: #94a3b8; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo { color: white; margin-bottom: 1.5rem; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 0.75rem; }
.footer-links a { color: #94a3b8; text-decoration: none; transition: 0.3s; }
.footer-links a:hover { color: white; }

.social-icons { display: flex; gap: 1rem; margin-top: 1.5rem; }
.social-icons a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: white;
    transition: 0.3s;
}

.social-icons a:hover { background: var(--primary); }

.footer-bottom { border-top: 1px solid rgba(255,255,255,0.05); padding-top: 40px; text-align: center; font-size: 0.9rem; }

/* Mobile */
@media (max-width: 968px) {
    .hero-grid, .about-grid, .contact-card, .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .hero h1 { font-size: 3rem; }
    .contact-card { padding: 3rem 1.5rem; }
    .nav-links {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        z-index: 999;
    }
    .nav-links.active {
        display: flex;
    }
    .nav-btn {
        margin-top: 1rem;
        text-align: center;
    }
    .menu-toggle {
        display: block;
    }
}

/* Scroll Reveal */
.hide {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

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