@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:ital,wght@0,100..900;1,100..900&family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200');

/* Reset and Global Styles */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px; /* Offset for sticky header */
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #fff8f0; /* surface */
    color: #1e1b14; /* on-surface */
}

/* Material Symbols Customization */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
    display: inline-block;
    vertical-align: middle;
}

/* Technical / Blueprint Aesthetics */
.blueprint-grid {
    background-image: radial-gradient(rgba(8, 102, 255, 0.1) 1px, transparent 1px);
    background-size: 24px 24px;
}

.blueprint-block {
    background-color: rgba(255, 215, 0, 0.05); /* surveyor-yellow with opacity */
    border-left: 4px solid #FFD700;
    border-top: 1px dashed rgba(126, 118, 101, 0.2);
    border-right: 1px dashed rgba(126, 118, 101, 0.2);
    border-bottom: 1px dashed rgba(126, 118, 101, 0.2);
    border-radius: 0.125rem; /* rounded-sm */
}

/* Glassmorphism Navigation */
.glass-nav {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background-color: rgba(255, 248, 240, 0.85); /* surface/85 */
    border-bottom: 1px solid rgba(207, 198, 177, 0.3); /* outline-variant */
    transition: all 0.3s ease-in-out;
}

.glass-nav.scrolled {
    background-color: rgba(224, 217, 206, 0.9); /* surface-dim/90 */
    box-shadow: 0 4px 20px rgba(13, 13, 13, 0.05);
    border-bottom: 1px solid rgba(126, 118, 101, 0.2); /* outline */
}

/* Fade-In Scroll Animations via Intersection Observer */
.reveal-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-section.active {
    opacity: 1;
    transform: translateY(0);
}

/* Precision Tech Cards & Buttons Styling */
.tech-card {
    background-color: #ffffff;
    border: 1px solid #cfc6b1; /* outline-variant */
    border-radius: 0.25rem; /* rounded */
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.tech-card:hover {
    border-color: #FFD700; /* surveyor-yellow */
    box-shadow: 0 4px 12px rgba(13, 13, 13, 0.06);
    transform: translateY(-2px);
}

/* Technical Details Overlay Custom Style */
.tech-blueprint-overlay {
    position: relative;
}
.tech-blueprint-overlay::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px dashed rgba(8, 102, 255, 0.2); /* technical-blue */
    pointer-events: none;
    border-radius: 0.125rem;
}