/* General Body & Font Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Sans', sans-serif;
    background-color: #000000;
    color: #E5E7EB;
}

.font-serif-header {
    font-family: 'IBM Plex Serif', serif;
    font-size: 28pt;
    line-height: 1.2;
    font-weight: 500;
    color: #ffffff;
}

/* Unified Text Styles */
h2 {
    font-size: 2.25rem; /* 36px */
    line-height: 2.5rem; /* 40px */
    font-weight: 500;
    letter-spacing: -0.025em;
}

h3 {
    font-size: 1.25rem; /* 20px */
    line-height: 1.75rem; /* 28px */
    font-weight: 500;
}

p, .hero-text, .testimonial-text {
    font-size: 18px;
    line-height: 1.75rem; /* 28px */
    color: #AEAEAE;
}

/* Card Styles */
.case-card {
    background-color: #0F0F0F;
    border-radius: 16px;
    position: relative;
    /* overflow: hidden; Removed to allow tooltips to show */
}

.case-card--interactive {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.case-card--interactive:hover {
    transform: translateY(-8px);
    background-color: #1a1a1a;
}

.case-card--interactive .details-link {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-card--interactive:hover .details-link {
    opacity: 1;
}

/* Link Styles */
.styled-link {
    display: inline-flex;
    align-items: center;
    color: #AEAEAE;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 18px;
}

.styled-link:hover {
    color: #ffffff;
}

.styled-link svg {
    transition: transform 0.3s;
    margin-left: 8px;
}

.styled-link:hover svg {
    transform: translateX(4px);
}

/* SVG & Logo Styles */
.svg-logo {
    filter: brightness(0) invert(1);
}

/* New WebGL Animation Container */
.animation-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

#background-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.blueprint-logo-shape {
    position: absolute;
    top: 0;
    left: 0;
    width: auto;
    height: 100%;
    z-index: 2;
}

/* Format Chips & Tooltips */
.format-chip {
    display: inline-block;
    position: relative;
    padding: 4px 10px;
    background-color: #313131;
    color: #ffffff;
    font-size: 14px;
    border-radius: 6px;
    margin-right: 8px;
    margin-bottom: 8px;
    cursor: help;
}

.format-chip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #111111; /* Darker grey for tooltip */
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.875rem; /* 14px */
    line-height: 1.25rem; /* 20px */
    font-weight: 400;
    width: 280px;
    text-align: left;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 50; /* High z-index to appear on top */
    pointer-events: none;
}

.format-chip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* FAQ Section Styles */
.faq-item {
    background-color: #0F0F0F;
    border-radius: 16px;
    margin-bottom: 16px;
    border: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.faq-item:hover {
    border-color: #313131;
}

.faq-item summary {
    font-family: 'IBM Plex Serif', serif;
    font-size: 1.25rem; /* 20px */
    font-weight: 500;
    color: #ffffff;
    padding: 24px;
    cursor: pointer;
    list-style: none; /* remove default arrow */
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.faq-item summary::-webkit-details-marker {
    display: none; /* hide default arrow for chrome */
}

.faq-item .faq-content {
    padding: 0 24px 24px 24px;
    color: #AEAEAE;
    font-size: 18px;
    line-height: 1.75rem;
}
.faq-item .faq-content p, 
.faq-item .faq-content ul {
    max-width: 80ch;
}


/* Icon for open/close state */
.faq-icon {
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item[open] > summary .faq-icon {
    transform: rotate(45deg);
}