/* Base Styles & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    line-height: var(--leading-normal);
    color: var(--text-dark);
    background-color: var(--card-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
}

/* Enhanced Typography Scale */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: var(--leading-tight);
    color: var(--text-dark);
    margin-bottom: var(--space-md);
    letter-spacing: -0.025em;
}

h1 { font-size: var(--text-5xl); font-weight: 800; }
h2 { font-size: var(--text-4xl); font-weight: 700; }
h3 { font-size: var(--text-3xl); font-weight: 600; }
h4 { font-size: var(--text-2xl); font-weight: 600; }
h5 { font-size: var(--text-xl); font-weight: 500; }
h6 { font-size: var(--text-lg); font-weight: 500; }

p {
    margin-bottom: var(--space-md);
    line-height: var(--leading-relaxed);
    color: var(--text-light);
}

/* Enhanced Link Styles */
a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition-base);
    position: relative;
}

a:hover {
    color: var(--highlight-color);
}

a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: var(--radius-xs);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-sm);
    }
}

/* Section */
section {
    padding: 80px 0;
    position: relative;
}

.section-sm {
    padding: var(--space-2xl) 0;
}

.section-lg {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-header::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 12px;
    padding: 6px 16px;
    background: rgba(26, 26, 46, 0.05);
    border-radius: 50px;
    border: 1px solid rgba(26, 26, 46, 0.1);
}

.section-title {
    font-size: 36px;
    font-weight: 900;
    color: var(--text-dark);
    margin-top: 12px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-description {
    font-size: 16px;
    color: var(--text-light);
    margin-top: 16px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* Performance Optimizations */
.hero-slide,
.btn,
.service-card,
.service-card-new,
.feature-card,
.feature-button,
.news-card,
.partner-card {
    will-change: transform;
    transform: translateZ(0);
}

/* Responsive Base Styles */
@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .section-description {
        font-size: 15px;
    }
}

@media (max-width: 640px) {
    section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 24px;
    }

    .section-subtitle {
        font-size: 12px;
        letter-spacing: 1px;
    }

    .section-description {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 20px;
    }
}