:root {
    --bg-color: #020408;
    --card-bg: rgba(6, 10, 18, 0.85);
    --accent-color: #00f0ff;
    --text-main: #f1f5f9;
    --text-muted: #64748b;
    --border-color: rgba(0, 240, 255, 0.12);
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    margin: 0; padding: 0;
    min-height: 100vh;
    display: flex; justify-content: center; align-items: center;
    position: relative; overflow-x: hidden;
}

.tech-grid {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-image: linear-gradient(rgba(0, 240, 255, 0.015) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(0, 240, 255, 0.015) 1px, transparent 1px);
    background-size: 60px 60px; z-index: 1;
}

.container {
    position: relative; z-index: 2; width: 100%; max-width: 550px; margin: 60px 20px;
}

.container.wide {
    max-width: 1000px;
}

/* Navbar */
.navbar {
    display: flex; justify-content: space-between; align-items: center;
    border-bottom: 1px solid var(--border-color); padding-bottom: 25px; margin-bottom: 70px;
}

.nav-status {
    font-family: monospace; font-size: 0.75rem; color: #00ff66; letter-spacing: 2px;
}

/* Hero Section */
header.hero {
    text-align: center; margin-bottom: 100px;
}

header h1 {
    font-size: 3.4rem; font-weight: 800; letter-spacing: -2px; margin: 0 0 25px 0; line-height: 1.1;
}

.highlight {
    color: var(--accent-color); text-shadow: 0 0 35px rgba(0, 240, 255, 0.35);
}

.subtitle {
    color: var(--text-muted); font-size: 1.25rem; line-height: 1.75; max-width: 850px; margin: 0 auto;
}

.logo {
    font-family: monospace; color: var(--accent-color); letter-spacing: 4px; font-size: 0.85rem; font-weight: bold;
}

/* Info Sections */
.info-section {
    margin-bottom: 110px;
}

.section-title {
    font-family: monospace; color: var(--accent-color); font-size: 0.8rem; letter-spacing: 3px; margin-bottom: 25px;
}

.info-section h2 {
    font-size: 2.2rem; margin: 0 0 25px 0; letter-spacing: -0.75px; font-weight: 700;
}

.info-section > p {
    color: var(--text-muted); font-size: 1.2rem; line-height: 1.8; margin: 0; max-width: 900px;
}

/* Grid Card System */
.features-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(450px, 1fr)); gap: 30px; margin-top: 45px;
}

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

.feature-card {
    background: var(--card-bg); backdrop-filter: blur(12px); border: 1px solid var(--border-color);
    padding: 40px; border-radius: 14px; box-shadow: 0 25px 50px rgba(0,0,0,0.65);
    position: relative; overflow: hidden; transition: border-color 0.3s;
}

.feature-card:hover {
    border-color: rgba(0, 240, 255, 0.35);
}

.card-num {
    position: absolute; top: 20px; right: 30px; font-family: monospace; font-size: 2.5rem;
    font-weight: 900; color: rgba(0, 240, 255, 0.04);
}

.feature-card h3 {
    margin: 0 0 15px 0; font-size: 1.35rem; color: #fff; font-weight: 600;
}

.feature-card p {
    margin: 0; font-size: 1.05rem; color: var(--text-muted); line-height: 1.7;
}

/* Specifications Layout */
.specs-box {
    background: radial-gradient(circle at top left, rgba(0, 240, 255, 0.02), transparent);
    border: 1px solid var(--border-color); padding: 50px; border-radius: 16px;
}

.workflow-step {
    border-left: 2px solid var(--accent-color); padding-left: 30px; margin-bottom: 40px;
}

.workflow-step:last-child { margin-bottom: 0; }
.workflow-step h4 { margin: 0 0 12px 0; font-size: 1.2rem; color: #fff; }
.workflow-step p { margin: 0; font-size: 1.05rem; color: var(--text-muted); line-height: 1.7; }

/* Bottom Action Section */
.cta-banner {
    text-align: center; background: linear-gradient(180deg, transparent, rgba(0,240,255,0.02));
    border: 1px solid var(--border-color); padding: 75px 40px; border-radius: 16px; margin-bottom: 90px;
    box-shadow: 0 0 50px rgba(0, 240, 255, 0.02);
}

.cta-banner h2 { margin: 0 0 20px 0; font-size: 2.2rem; font-weight: 700; }
.cta-banner p { color: var(--text-muted); max-width: 700px; margin: 0 auto 40px auto; font-size: 1.15rem; line-height: 1.7; }

/* Interactive Form Elements */
main {
    background: var(--card-bg); backdrop-filter: blur(16px); border: 1px solid var(--border-color);
    padding: 50px; border-radius: 16px; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.75);
}

.form-group { margin-bottom: 28px; }
label { display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); margin-bottom: 12px; font-weight: 600; }
input, textarea { width: 100%; padding: 16px 20px; background: rgba(2, 4, 8, 0.95); border: 1px solid rgba(255, 255, 255, 0.06); border-radius: 8px; color: #fff; font-size: 1rem; box-sizing: border-box; transition: all 0.3s; }
input:focus, textarea:focus { outline: none; border-color: var(--accent-color); box-shadow: 0 0 15px rgba(0, 240, 255, 0.2); }

.submit-btn {
    display: inline-block; text-decoration: none; text-align: center; box-sizing: border-box;
    width: 100%; padding: 18px; background: transparent; border: 2px solid var(--accent-color); color: var(--accent-color);
    font-size: 0.95rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; border-radius: 8px; cursor: pointer; transition: all 0.3s ease;
}

.submit-btn:hover { background: var(--accent-color); color: var(--bg-color); box-shadow: 0 0 25px rgba(0, 240, 255, 0.45); }
.highlight-btn { background: var(--accent-color); color: var(--bg-color); font-size: 1rem; max-width: 350px; box-shadow: 0 0 20px rgba(0, 240, 255, 0.15); }
.highlight-btn:hover { box-shadow: 0 0 35px rgba(0, 240, 255, 0.55); }

footer { text-align: center; margin-top: 70px; font-family: monospace; font-size: 0.75rem; color: var(--text-muted); border-top: 1px solid rgba(255,255,255,0.03); padding-top: 30px; }