:root {
    --primary: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --accent: #9333ea;
    --text-main: #0f172a;
    --text-muted: #475569;
    --bg-main: #ffffff;
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;
    --border: #e2e8f0;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-main);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Header */
.header {
    padding: 2rem 0;
    background: transparent;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 6px;
    mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polygon points="12 2 2 7 12 12 22 7 12 2"></polygon><polyline points="2 17 12 22 22 17"></polyline><polyline points="2 12 12 17 22 12"></polyline></svg>') no-repeat center / contain;
    -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="black" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polygon points="12 2 2 7 12 12 22 7 12 2"></polygon><polyline points="2 17 12 22 22 17"></polyline><polyline points="2 12 12 17 22 12"></polyline></svg>') no-repeat center / contain;
}

.logo.logo-white .logo-text {
    color: white;
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
}

/* Hero Section */
.hero {
    padding: 5rem 0 7rem;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(147, 51, 234, 0.15) 0%, rgba(59, 130, 246, 0.1) 30%, transparent 70%);
    z-index: -1;
    border-radius: 0 0 0 50%;
}

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

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(90deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 650px;
}

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

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    border: 1px solid var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

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

.btn-secondary:hover {
    border-color: var(--text-muted);
    background-color: var(--bg-light);
}

/* Sections Common */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
}

.bg-light {
    background-color: var(--bg-light);
    padding: 5rem 0;
}

.grid {
    display: grid;
    gap: 2rem;
}

/* Solutions */
.solutions-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(226, 232, 240, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.blue-icon { background: rgba(59, 130, 246, 0.1); color: var(--primary); }
.purple-icon { background: rgba(147, 51, 234, 0.1); color: var(--accent); }
.green-icon { background: rgba(16, 185, 129, 0.1); color: #10b981; }

.solution-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.solution-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Projects */
.projects {
    padding: 5rem 0;
}

.projects-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 900px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

.project-card {
    border-radius: 1.25rem;
    overflow: hidden;
    color: white;
    display: flex;
    flex-direction: column;
}

.project-info {
    padding: 2.5rem;
}

.project-blue {
    background: linear-gradient(135deg, #3b82f6, #1e40af);
}

.project-dark {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}

.project-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.project-card p {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.project-image {
    margin: 0 2.5rem 0 2.5rem;
    border-radius: 0.5rem 0.5rem 0 0;
    overflow: hidden;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.2);
    margin-top: auto;
}

.project-image img {
    width: 100%;
    display: block;
    object-fit: cover;
    object-position: top;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: white;
    padding: 5rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
}

.footer-brand p {
    color: #94a3b8;
    margin-top: 1rem;
    font-size: 0.95rem;
}

.footer-links h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a, .footer-links li {
    color: #94a3b8;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: left;
    color: #64748b;
    font-size: 0.875rem;
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    background-color: var(--text-muted);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s;
    z-index: 100;
}

.chat-widget:hover {
    transform: scale(1.05);
    background-color: var(--text-main);
}