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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #0f0f12;
    color: #fff;
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: #4ade80;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #22c55e;
}

button {
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s;
}

input, select, textarea {
    font-family: inherit;
    transition: all 0.3s;
}

img {
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.section {
    padding: 60px 0;
}

.section.dark {
    background-color: #1a1a1d;
}

.section.light {
    background-color: #0f0f12;
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 40px;
}

.section-title {
    font-size: 32px;
    color: #fff;
    margin-bottom: 15px;
}

.section-underline {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #4ade80, #22c55e);
    margin: 0 auto;
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background: #1a1a1d;
    border: 2px solid #333;
    border-radius: 8px;
    color: #fff;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s;
}

.btn:hover {
    background: #2a2a2f;
    border-color: #4ade80;
}

.btn-primary {
    background: #4ade80;
    border-color: #4ade80;
    color: #000;
}

.btn-primary:hover {
    background: #22c55e;
    border-color: #22c55e;
}

.btn-lg {
    padding: 15px 35px;
    font-size: 16px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.mb-4 { margin-bottom: 40px; }

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mt-4 { margin-top: 40px; }

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 26px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }
}