/* ============================================
   DRC.Zone — Digital Republic Corp.
   Custom Styles — Technical Edition
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
    --drc-primary: #0a1628;
    --drc-primary-light: #1a2744;
    --drc-accent: #2563eb;
    --drc-accent-light: #3b82f6;
    --drc-accent-glow: rgba(37, 99, 235, 0.3);
    --drc-green: #22c55e;
    --drc-green-dim: rgba(34, 197, 94, 0.15);
    --drc-cyan: #06b6d4;
    --drc-purple: #a78bfa;
    --drc-orange: #f59e0b;
    --drc-text: #e2e8f0;
    --drc-text-muted: #94a3b8;
    --drc-surface: rgba(255, 255, 255, 0.05);
    --drc-glass: rgba(255, 255, 255, 0.04);
    --drc-glass-border: rgba(255, 255, 255, 0.08);
    --drc-radius: 12px;
    --drc-transition: 0.3s ease;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Consolas', monospace;
}

/* --- Base --- */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--drc-primary);
    color: var(--drc-text);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
}

section {
    padding: 6rem 0;
    position: relative;
}

.section-label {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.8rem;
    color: var(--drc-green);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.section-label::before {
    content: '// ';
    opacity: 0.5;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--drc-text-muted);
    font-size: 1.05rem;
    max-width: 600px;
}

/* --- Navbar --- */
.navbar {
    padding: 1rem 0;
    transition: background-color var(--drc-transition), box-shadow var(--drc-transition), padding var(--drc-transition);
    background-color: transparent !important;
    z-index: 1050;
}

.navbar-scrolled {
    background-color: rgba(10, 22, 40, 0.97) !important;
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 var(--drc-glass-border);
    padding: 0.5rem 0;
}

.navbar-brand {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff !important;
    letter-spacing: -0.5px;
}

.navbar-brand .brand-dot {
    color: var(--drc-green);
}

.navbar-brand span {
    font-family: 'Inter', sans-serif;
    font-weight: 400;
    font-size: 0.8rem;
    color: var(--drc-text-muted);
    margin-left: 0.75rem;
    padding-left: 0.75rem;
    border-left: 1px solid var(--drc-glass-border);
}

.navbar-nav .nav-link {
    font-family: var(--font-mono);
    color: var(--drc-text-muted) !important;
    font-size: 0.8rem;
    font-weight: 400;
    padding: 0.5rem 0.85rem !important;
    transition: color var(--drc-transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--drc-green) !important;
}

.btn-nav-cta {
    font-family: var(--font-mono);
    background: transparent;
    color: var(--drc-green) !important;
    border: 1px solid var(--drc-green);
    border-radius: 6px;
    padding: 0.4rem 1rem !important;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all var(--drc-transition);
}

.btn-nav-cta:hover {
    background: var(--drc-green-dim);
    color: var(--drc-green) !important;
}

/* --- Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--drc-primary);
    position: relative;
    overflow: hidden;
}

/* Grid background */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

/* Gradient glow */
.hero::after {
    content: '';
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--drc-green);
    font-weight: 400;
    margin-bottom: 1.5rem;
}

.hero-label .cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--drc-green);
    margin-left: 2px;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

.hero h1 {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    max-width: 650px;
}

.hero h1 .text-gradient {
    background: linear-gradient(135deg, var(--drc-accent-light), #60a5fa, var(--drc-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .hero-desc {
    font-size: 1.05rem;
    color: var(--drc-text-muted);
    max-width: 520px;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.btn-hero-primary {
    font-family: var(--font-mono);
    background: var(--drc-accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.75rem;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--drc-transition);
}

.btn-hero-primary:hover {
    background: var(--drc-accent-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--drc-accent-glow);
}

.btn-hero-outline {
    font-family: var(--font-mono);
    background: transparent;
    color: var(--drc-text-muted);
    border: 1px solid var(--drc-glass-border);
    border-radius: 8px;
    padding: 0.75rem 1.75rem;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--drc-transition);
}

.btn-hero-outline:hover {
    background: var(--drc-surface);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.2);
}

/* Terminal block in hero */
.terminal {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--drc-glass-border);
    border-radius: 10px;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.7;
}

.terminal-header {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 0.75rem;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid var(--drc-glass-border);
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ef4444; }
.terminal-dot.yellow { background: #f59e0b; }
.terminal-dot.green { background: #22c55e; }

.terminal-title {
    color: var(--drc-text-muted);
    font-size: 0.7rem;
    margin-left: 0.5rem;
}

.terminal-body {
    padding: 1rem;
    color: var(--drc-text-muted);
    max-height: 320px;
    overflow: hidden;
}

.terminal-body .line {
    opacity: 0;
    transform: translateY(5px);
    white-space: nowrap;
}

.terminal-body .line.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.terminal-body .prompt {
    color: var(--drc-green);
}

.terminal-body .cmd {
    color: var(--drc-text);
}

.terminal-body .flag {
    color: var(--drc-cyan);
}

.terminal-body .string {
    color: var(--drc-orange);
}

.terminal-body .comment {
    color: #475569;
}

.terminal-body .output {
    color: var(--drc-text-muted);
}

.terminal-body .success {
    color: var(--drc-green);
}

.terminal-body .info {
    color: var(--drc-accent-light);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator i {
    font-size: 1.2rem;
    color: var(--drc-text-muted);
    opacity: 0.5;
}

/* --- Services --- */
.services-section {
    background: var(--drc-primary);
    border-top: 1px solid var(--drc-glass-border);
}

.glass-card {
    background: var(--drc-glass);
    border: 1px solid var(--drc-glass-border);
    border-radius: var(--drc-radius);
    padding: 1.75rem;
    transition: all var(--drc-transition);
    height: 100%;
    position: relative;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--drc-accent), transparent);
    opacity: 0;
    transition: opacity var(--drc-transition);
}

.glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.glass-card:hover::before {
    opacity: 1;
}

.glass-card .card-icon {
    font-size: 1.5rem;
    color: var(--drc-accent-light);
    margin-bottom: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 10px;
}

.glass-card h5 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.65rem;
}

.glass-card p {
    color: var(--drc-text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
    margin-bottom: 0.75rem;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: 0.75rem;
}

.card-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--drc-text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
}

/* --- Architecture / How We Build --- */
.architecture-section {
    background: var(--drc-primary-light);
    border-top: 1px solid var(--drc-glass-border);
    border-bottom: 1px solid var(--drc-glass-border);
}

.arch-step {
    position: relative;
    padding: 1.5rem;
    background: var(--drc-glass);
    border: 1px solid var(--drc-glass-border);
    border-radius: var(--drc-radius);
    text-align: center;
    height: 100%;
}

.arch-step-number {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--drc-accent-light);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 4px;
    padding: 0.15rem 0.5rem;
    display: inline-block;
    margin-bottom: 0.75rem;
}

.arch-step i {
    font-size: 1.75rem;
    color: var(--drc-accent-light);
    margin-bottom: 0.75rem;
    display: block;
}

.arch-step h6 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.arch-step p {
    font-size: 0.85rem;
    color: var(--drc-text-muted);
    margin-bottom: 0;
    line-height: 1.6;
}

.arch-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--drc-glass-border);
    font-size: 1.25rem;
}

/* Code snippet block */
.code-block {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--drc-glass-border);
    border-radius: 10px;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.75;
}

.code-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--drc-glass-border);
}

.code-filename {
    color: var(--drc-text-muted);
    font-size: 0.72rem;
}

.code-lang {
    color: var(--drc-accent-light);
    font-size: 0.65rem;
    background: rgba(37, 99, 235, 0.1);
    padding: 0.1rem 0.45rem;
    border-radius: 3px;
}

.code-body {
    padding: 1rem;
    overflow-x: auto;
}

.code-body .line-num {
    color: #334155;
    user-select: none;
    display: inline-block;
    width: 2ch;
    text-align: right;
    margin-right: 1.25rem;
}

.code-body .keyword { color: var(--drc-purple); }
.code-body .func { color: #60a5fa; }
.code-body .string { color: var(--drc-green); }
.code-body .type { color: var(--drc-cyan); }
.code-body .comment { color: #475569; font-style: italic; }
.code-body .param { color: var(--drc-orange); }
.code-body .operator { color: var(--drc-text-muted); }

/* --- About --- */
.about-section {
    background: var(--drc-primary);
    border-top: 1px solid var(--drc-glass-border);
}

.about-text p {
    color: var(--drc-text-muted);
    line-height: 1.8;
    font-size: 1rem;
}

.stat-card {
    background: var(--drc-glass);
    border: 1px solid var(--drc-glass-border);
    border-radius: var(--drc-radius);
    padding: 1.25rem;
    text-align: center;
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--drc-accent-light);
    line-height: 1;
    margin-bottom: 0.35rem;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--drc-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Status indicator */
.status-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--drc-text-muted);
    margin-top: 1.5rem;
    padding: 0.75rem 1rem;
    background: var(--drc-glass);
    border: 1px solid var(--drc-glass-border);
    border-radius: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--drc-green);
    animation: pulse-dot 2s ease-in-out infinite;
}

/* --- Technology --- */
.tech-section {
    background: var(--drc-primary-light);
    border-top: 1px solid var(--drc-glass-border);
}

.tech-category {
    margin-bottom: 1.5rem;
}

.tech-category-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--drc-text-muted);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.tech-category-label::before {
    content: '$ ';
    color: var(--drc-green);
}

.tech-badge {
    font-family: var(--font-mono);
    display: inline-block;
    background: var(--drc-surface);
    border: 1px solid var(--drc-glass-border);
    border-radius: 6px;
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--drc-text-muted);
    margin: 0.2rem;
    transition: all var(--drc-transition);
}

.tech-badge:hover {
    border-color: var(--drc-accent-light);
    color: #fff;
    background: rgba(37, 99, 235, 0.1);
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.15);
}

/* --- Industries --- */
.industries-section {
    background: var(--drc-primary);
    border-top: 1px solid var(--drc-glass-border);
}

.industry-card {
    background: var(--drc-glass);
    border: 1px solid var(--drc-glass-border);
    border-radius: var(--drc-radius);
    padding: 1.5rem 1rem;
    text-align: center;
    transition: all var(--drc-transition);
    height: 100%;
}

.industry-card:hover {
    transform: translateY(-4px);
    border-color: var(--drc-accent-light);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.industry-card i {
    font-size: 1.75rem;
    color: var(--drc-accent-light);
    margin-bottom: 0.65rem;
}

.industry-card h6 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0;
}

/* --- Contact --- */
.contact-section {
    background: var(--drc-primary-light);
    border-top: 1px solid var(--drc-glass-border);
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--drc-text-muted);
    font-size: 0.95rem;
}

.contact-detail i {
    font-size: 1.1rem;
    color: var(--drc-accent-light);
    width: 24px;
    text-align: center;
}

.form-control-dark {
    font-family: var(--font-mono);
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--drc-glass-border);
    border-radius: 8px;
    color: var(--drc-text);
    padding: 0.7rem 1rem;
    font-size: 0.85rem;
    transition: border-color var(--drc-transition), box-shadow var(--drc-transition);
}

.form-control-dark::placeholder {
    color: #475569;
}

.form-control-dark:focus {
    background: rgba(0, 0, 0, 0.3);
    border-color: var(--drc-accent);
    color: var(--drc-text);
    box-shadow: 0 0 0 3px var(--drc-accent-glow);
    outline: none;
}

.btn-submit {
    font-family: var(--font-mono);
    background: var(--drc-accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 0.7rem 2rem;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--drc-transition);
    width: 100%;
}

.btn-submit:hover {
    background: var(--drc-accent-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--drc-accent-glow);
}

/* --- Footer --- */
.site-footer {
    background: #050d18;
    padding: 3.5rem 0 0;
    border-top: 1px solid var(--drc-glass-border);
}

.footer-brand {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.1rem;
    color: #fff;
    margin-bottom: 0.75rem;
}

.site-footer p {
    color: var(--drc-text-muted);
    font-size: 0.85rem;
    line-height: 1.65;
}

.footer-heading {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--drc-text-muted);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.4rem;
}

.footer-links a {
    color: #475569;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color var(--drc-transition);
}

.footer-links a:hover {
    color: var(--drc-accent-light);
}

.footer-bottom {
    border-top: 1px solid var(--drc-glass-border);
    padding: 1.25rem 0;
    margin-top: 2.5rem;
}

.footer-bottom p {
    font-family: var(--font-mono);
    margin: 0;
    font-size: 0.75rem;
    color: #334155;
}

/* --- Animations --- */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-25px) rotate(3deg); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-6px); }
    60% { transform: translateX(-50%) translateY(-3px); }
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

@keyframes scan-line {
    0% { top: -2px; }
    100% { top: 100%; }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.08s; }
.animate-on-scroll.delay-2 { transition-delay: 0.16s; }
.animate-on-scroll.delay-3 { transition-delay: 0.24s; }
.animate-on-scroll.delay-4 { transition-delay: 0.32s; }
.animate-on-scroll.delay-5 { transition-delay: 0.40s; }
.animate-on-scroll.delay-6 { transition-delay: 0.48s; }

/* --- Responsive --- */
@media (max-width: 991px) {
    section { padding: 4rem 0; }
    .section-title { font-size: 2rem; }
    .stat-number { font-size: 1.75rem; }
    .terminal { display: none; }
    .arch-connector { display: none; }
}

@media (max-width: 767px) {
    section { padding: 3rem 0; }
    .section-title { font-size: 1.6rem; }
    .hero h1 { font-size: 1.65rem; }
    .hero .hero-desc { font-size: 0.95rem; }
    .navbar-brand span { display: none; }
    .code-block { display: none; }
    .btn-hero-primary,
    .btn-hero-outline {
        padding: 0.65rem 1.25rem;
        font-size: 0.85rem;
    }
}