/* Variables */
:root {
    --bg-black: #131313;
    --panel-dark: #1E1E1E;
    --amber: #FFB000;
    --dim-amber: rgba(255, 176, 0, 0.35); /* Amber at 35% opacity */
}

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

body {
    background-color: var(--bg-black);
    color: var(--amber);
    font-family: 'IBM Plex Mono', monospace;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4, .headline {
    font-family: 'Silkscreen', monospace;
    color: var(--amber);
    font-weight: 700;
    margin-bottom: 1rem;
}

p {
    color: var(--amber);
    margin-bottom: 1rem;
}

a {
    color: var(--amber);
    text-decoration: none;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--dim-amber);
    padding-bottom: 1rem;
}

/* Navbar */
.navbar {
    border-bottom: 2px solid var(--dim-amber);
    padding: 15px 0;
    background-color: var(--bg-black);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.nav-links a {
    margin-left: 20px;
    font-weight: 500;
    transition: text-shadow 0.2s ease;
}

.nav-links a:hover {
    text-shadow: 0 0 8px var(--amber);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 4px;
    border: 2px solid var(--amber);
    background: transparent;
    color: var(--amber);
    font-weight: 700;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1rem;
    text-align: center;
    transition: all 0.2s ease;
    text-transform: uppercase;
    cursor: pointer;
    letter-spacing: 0.12em;
}

.btn:hover {
    background: var(--amber);
    color: var(--bg-black);
    box-shadow: 0 0 15px rgba(255, 176, 0, 0.4);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 100px 0 60px;
    text-align: center;
    background: radial-gradient(circle at center, #1a1a1a 0%, var(--bg-black) 100%);
}

.hero .headline {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero .sub-headline {
    font-size: 1.1rem;
    margin-bottom: 40px;
    color: var(--amber);
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* Blinking Cursor Effect */
.blink::after {
    content: '_';
    animation: blinker 1s step-start infinite;
}

@keyframes blinker {
    50% { opacity: 0; }
}

/* Split-Flap Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

section {
    padding: 60px 0;
}

.flap-card {
    background: var(--panel-dark);
    border: 2px solid var(--amber);
    border-radius: 4px;
    position: relative;
    text-align: center;
    overflow: hidden;
}

/* Horizontal Midline representing the split flap */
.flap-card::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--bg-black);
    z-index: 1;
    transform: translateY(-50%);
}

/* Wrap card content so it stays above/below the split line visually without overlapping weirdly, though keeping it simple is best */
.card-content {
    position: relative;
    z-index: 2;
    padding: 30px;
}

.flap-card.highlight {
    border-width: 4px;
    box-shadow: 0 0 20px rgba(255, 176, 0, 0.2);
}

/* Specific Card Elements */
.flap-card h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.price {
    font-size: 2.5rem;
    font-family: 'Silkscreen', monospace;
    margin: 20px 0;
}

.price span {
    font-size: 1rem;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--dim-amber);
}

.terminal-list {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.terminal-list li {
    margin-bottom: 10px;
    padding-left: 15px;
    position: relative;
}

.terminal-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--dim-amber);
}

.badge {
    display: inline-block;
    background: var(--amber);
    color: var(--bg-black);
    padding: 4px 12px;
    font-weight: 700;
    margin-bottom: 15px;
}

/* Tags */
.tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tags span {
    border: 1px solid var(--dim-amber);
    padding: 5px 15px;
    font-size: 0.9rem;
}

/* FAQ Tweaks */
.faq-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

/* Footer */
footer {
    border-top: 2px solid var(--dim-amber);
    padding: 40px 0;
    text-align: center;
    background: var(--panel-dark);
}

.grid-links {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.grid-links a:hover {
    text-shadow: 0 0 8px var(--amber);
}

.copyright {
    color: var(--dim-amber);
    font-size: 0.9rem;
}

/* Inner pages generic container */
.page-container {
    max-width: 800px;
    margin: 60px auto;
    padding: 40px;
    background: var(--panel-dark);
    border: 2px solid var(--amber);
}

.page-container h1, .page-container h2 {
    border-bottom: 1px solid var(--dim-amber);
    padding-bottom: 10px;
}

/* Clack Entrance Animation */
@keyframes flapIn {
    0% {
        opacity: 0;
        transform: perspective(600px) rotateX(-90deg);
    }
    100% {
        opacity: 1;
        transform: perspective(600px) rotateX(0deg);
    }
}

.clack-item {
    animation: flapIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
    transform-origin: top;
}

/* Accessibility: Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .clack-item {
        animation: none;
        opacity: 1;
        transform: none;
    }
    .blink::after {
        animation: none;
        opacity: 1;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero .headline { font-size: 2rem; }
    .nav-content { flex-direction: column; text-align: center; }
    .nav-links a { margin: 10px; display: inline-block; }
    .btn { width: 100%; margin-bottom: 15px; }
    .flap-card { margin-bottom: 10px; }
}

/* Floating Action Buttons */
.fab-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}
.fab-btn {
    background: var(--bg-black);
    border: 2px solid var(--amber);
    color: var(--amber);
    padding: 10px 15px;
    border-radius: 4px;
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.5);
    font-size: 0.85rem;
}
.fab-btn:hover {
    background: var(--amber);
    color: var(--bg-black);
    box-shadow: 0 0 15px rgba(255, 176, 0, 0.4);
}
.article-nav {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px dashed var(--dim-amber);
    display: flex;
    justify-content: space-between;
}