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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #f8fafc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.5px;
}

.logo-accent {
    color: #2563eb;
}

.nav a {
    text-decoration: none;
    color: #475569;
    font-weight: 500;
    margin-left: 25px;
    transition: color 0.2s;
}

.nav a:hover {
    color: #2563eb;
}

.nav .btn-nav {
    background: #2563eb;
    color: #ffffff;
    padding: 8px 18px;
    border-radius: 6px;
}

.nav .btn-nav:hover {
    background: #1d4ed8;
    color: #ffffff;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    background: rgba(37, 99, 235, 0.2);
    color: #60a5fa;
    border: 1px solid rgba(96, 165, 250, 0.3);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    display: inline-block;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    font-size: 18px;
    color: #94a3b8;
    margin-bottom: 35px;
}

.hero-btns {
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: #2563eb;
    color: #ffffff;
}

.btn-primary:hover {
    background: #1d4ed8;
}

.btn-secondary {
    background: #334155;
    color: #ffffff;
}

.btn-secondary:hover {
    background: #475569;
}

/* Services Section */
.services {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    color: #0f172a;
    margin-bottom: 10px;
}

.section-title p {
    color: #64748b;
    font-size: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.service-card {
    background: #ffffff;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.1);
}

.card-icon {
    font-size: 32px;
    margin-bottom: 15px;
}

.service-card h3 {
    font-size: 20px;
    color: #0f172a;
    margin-bottom: 15px;
}

.service-card ul {
    list-style: none;
}

.service-card li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: #475569;
    font-size: 15px;
}

.service-card li::before {
    content: "•";
    color: #2563eb;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Stack Section */
.stack {
    padding: 80px 0;
    background: #ffffff;
    border-top: 1px solid #e2e8f0;
    border-bottom: 1px solid #e2e8f0;
}

.table-wrapper {
    overflow-x: auto;
}

.stack-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.stack-table th, .stack-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.stack-table th {
    background-color: #0f172a;
    color: #ffffff;
    font-weight: 600;
}

.stack-table tr:hover {
    background-color: #f8fafc;
}

/* Contact & Form Section */
.contact {
    padding: 80px 0;
}

.contact-card {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: #ffffff;
    padding: 50px;
    border-radius: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card h2 {
    font-size: 32px;
    margin-bottom: 10px;
    text-align: center;
}

.contact-card > p {
    color: #94a3b8;
    margin-bottom: 35px;
    font-size: 16px;
    text-align: center;
}

/* Feedback Form Styles */
.feedback-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    text-align: left;
}

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

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: #cbd5e1;
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: #0f172a;
    border: 1px solid #334155;
    border-radius: 6px;
    padding: 12px 15px;
    color: #ffffff;
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.form-group select {
    appearance: none;
    cursor: pointer;
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    grid-column: span 2;
    font-size: 16px;
    padding: 14px;
    margin-top: 10px;
}

.direct-contacts {
    margin-top: 40px;
    padding-top: 25px;
    border-top: 1px solid #334155;
    text-align: center;
}

.direct-contacts p {
    color: #94a3b8;
    font-size: 14px;
    margin-bottom: 15px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 25px;
}

.contact-links a {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.contact-links a:hover {
    color: #ffffff;
}

/* Footer */
.footer {
    background: #0f172a;
    color: #64748b;
    padding: 30px 0;
    text-align: center;
    font-size: 14px;
    border-top: 1px solid #1e293b;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 30px; }
    .services-grid { grid-template-columns: 1fr; }
    .feedback-form { grid-template-columns: 1fr; }
    .form-group.full-width, .btn-submit { grid-column: span 1; }
    .footer-content { flex-direction: column; gap: 10px; }
    .contact-links { flex-direction: column; gap: 10px; }
}