/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'salis-mvb', sans-serif;
    background-color: #0a0a0a;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.dark {
    color-scheme: dark;
}

/* Common Layout Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
    position: relative;
    z-index: 10;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'dunbar-tall', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.section-title {
    font-family: 'dunbar-tall', sans-serif;
    font-size: 64px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 24px;
    color: #ffffff;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-family: 'salis-mvb', sans-serif;
    font-size: 16px;
    color: #a3a3a3;
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
    font-weight: 400;
    line-height: 1.6;
}

.tagline {
    font-family: 'baskerville-urw', serif;
    font-style: italic;
    font-size: 20px;
    font-weight: 400;
}

/* Backgrounds */
.hero-grid-background {
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
    z-index: 1;
}

/* Particle Background for Sections After Hero */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    opacity: 0;
    transition: opacity 1s ease;
    pointer-events: none;
}

#particles-js.visible {
    opacity: 0.4;
    pointer-events: none;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

.mt-8 {
    margin-top: 2rem;
}

.hidden {
    display: none;
}

.block {
    display: block;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.flex {
    display: flex;
}

.grid {
    display: grid;
}

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

.justify-center {
    justify-content: center;
}

.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.z-10 {
    z-index: 10;
}

/* Brand Gradients */
.gradient-primary {
    background: linear-gradient(135deg, #ff6b9d, #c06cff, #4d9fff);
}

.gradient-cool {
    background: linear-gradient(135deg, #00f5d4, #00d4ff, #4d9fff);
}

.gradient-warm {
    background: linear-gradient(135deg, #c06cff, #ff6b9d, #ffa07a);
}

/* Gradient Border */
.gradient-border {
    position: relative;
    padding: 4px;
    border-radius: 20px;
    background: linear-gradient(135deg, #ff6b9d, #c06cff, #4d9fff, #00d4ff, #00f5d4);
    background-size: 300% 300%;
}

.gradient-border-inner {
    background: #0a0a0a;
    border-radius: 16px;
    padding: 30px;
    height: 100%;
}

/* Brand Colors - Privacy & Developer Focused */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #151515;
    --bg-card: #1a1a1a;
    --bg-terminal: #0d1117;

    --accent-primary: #00f5d4;      /* Privacy/Security Green */
    --accent-secondary: #4d9fff;    /* Python Blue */
    --accent-tertiary: #c06cff;     /* Code Purple */

    --text-primary: #f0eded;
    --text-secondary: #a3a3a3;
    --text-muted: #6b6b6b;

    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-emphasis: rgba(0, 245, 212, 0.3);
}

.bg-deep-black {
    background-color: var(--bg-primary);
}

.bg-carbon-gray {
    background-color: var(--bg-secondary);
}

.bg-terminal {
    background-color: var(--bg-terminal);
}

.bg-silk-white {
    background-color: #f0eded;
}

.text-silk-white {
    color: var(--text-primary);
}

.text-coral-pink {
    color: #ff6b9d;
}

.text-vivid-purple {
    color: var(--accent-tertiary);
}

.text-sky-blue {
    color: var(--accent-secondary);
}

.text-turquoise {
    color: var(--accent-primary);
}

/* Technical/Code styling */
.text-code {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    color: var(--accent-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}