/*
 * CrowdCent Challenge Dark Mode Theme
 */

:root {
    /* Brand Colors */
    --brand-primary: #005380;
    --brand-primary-light: #006ba6;
    --brand-accent: #62e4fb;
    --brand-accent-light: #7bd4ff;

    /* Theme Colors */
    --bg-primary: #001926;
    --bg-secondary: #01334a;
    --bg-dark-subtle: #0a2936;

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.6);

    /* Accent color opacity variants */
    --accent-02: rgba(98, 228, 251, 0.02);
    --accent-05: rgba(98, 228, 251, 0.05);
    --accent-06: rgba(98, 228, 251, 0.06);
    --accent-10: rgba(98, 228, 251, 0.1);
    --accent-15: rgba(98, 228, 251, 0.15);
    --accent-20: rgba(98, 228, 251, 0.2);
    --accent-25: rgba(98, 228, 251, 0.25);
    --accent-30: rgba(98, 228, 251, 0.3);
    --accent-40: rgba(98, 228, 251, 0.4);
    --accent-50: rgba(98, 228, 251, 0.5);

    --border-color: var(--accent-20);
    --card-bg: var(--bg-dark-subtle);
    --card-header-bg: var(--bg-primary);
    --card-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);

    --transition-base: all 0.2s ease-in-out;
}

*, *::before, *::after {
    border-radius: 0 !important;
}

html, body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

body {
    font-family: "Poppins", sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--accent-20);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-40);
}

/* Typography & Colors */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
}

.text-accent {
    color: var(--brand-accent) !important;
}
.lead {
    color: var(--text-primary);
    opacity: 0.9;
    font-size: 1.15rem;
    font-weight: 300;
}

/* Navigation */
.navbar {
    padding: 1rem 0;
    background-color: var(--bg-primary) !important;
    border-bottom: 1px solid var(--accent-10);
}

.navbar-brand img {
    height: 2.3rem;
    width: auto;
}

.navbar-dark .navbar-nav {
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.05em;
    font-size: 0.85em;
    gap: 0.5rem;
}

.navbar-dark .navbar-nav .nav-link {
    color: var(--text-primary);
    padding: 0.25rem 0.75rem;
    transition: var(--transition-base);
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: var(--brand-accent) !important;
}

.dropdown-menu-dark {
    background-color: var(--bg-dark-subtle);
    border: 1px solid var(--accent-20);
    padding: 0.5rem 0;
}

.dropdown-menu-dark .dropdown-item {
    color: var(--text-primary);
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
}

.dropdown-menu-dark .dropdown-item:hover {
    background-color: var(--accent-10);
    color: var(--brand-accent);
}

/* Status Indicator Pill */
.nav-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.15rem 0.45rem;
    background: var(--accent-10);
    border: 1px solid var(--accent-30);
    font-size: 0.7rem;
    color: var(--brand-accent);
    letter-spacing: 0.04em;
    margin-left: 0.5rem;
}

.status-indicator {
    width: 6px;
    height: 6px;
    background-color: var(--brand-accent);
    border-radius: 50% !important;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(98, 228, 251, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(98, 228, 251, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(98, 228, 251, 0); }
}

/* Hero & Grid Overlay */
.grid-overlay {
    position: relative;
    background-image: 
        linear-gradient(to right, var(--accent-02) 1px, transparent 1px),
        linear-gradient(to bottom, var(--accent-02) 1px, transparent 1px);
    background-size: 40px 40px;
}

header h1 {
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.25;
    letter-spacing: -0.02em;
}

/* Buttons */
.btn-primary {
    background-color: var(--brand-accent) !important;
    border-color: var(--brand-accent) !important;
    color: var(--bg-primary) !important;
    font-weight: 600;
    padding: 0.65rem 1.65rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 0.875rem;
    transition: var(--transition-base);
}

.btn-primary:hover {
    background-color: #ffffff !important;
    border-color: #ffffff !important;
    color: var(--bg-primary) !important;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.4);
}

.btn-accent-link {
    display: inline-flex;
    align-items: center;
    color: var(--brand-accent);
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    transition: color 0.2s ease;
}

.btn-accent-link::after {
    content: "\2192";
    margin-left: 0.5rem;
    transition: transform 0.2s ease;
}

.btn-accent-link:hover {
    color: #ffffff;
}

.btn-accent-link:hover::after {
    transform: translateX(4px);
}

/* CSS Tabs System */
.tabs-container {
    width: 100%;
}
.tab-input {
    display: none;
}

.tabs-intro {
    text-align: center;
    margin-bottom: 1rem;
}
.tabs-intro p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.tabs-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.tab-label {
    padding: 0.6rem 1.4rem;
    border: 1px solid var(--accent-30);
    color: var(--brand-accent);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.85rem;
    background: transparent;
}

.tab-label:hover {
    background-color: var(--text-primary);
    border-color: var(--text-primary);
    color: var(--bg-primary);
}

#tab1:checked ~ .tabs-nav .tab1-label,
#tab2:checked ~ .tabs-nav .tab2-label,
#tab3:checked ~ .tabs-nav .tab3-label {
    background-color: var(--brand-accent);
    border-color: var(--brand-accent);
    color: var(--bg-primary);
    box-shadow: 0 0 15px rgba(98, 228, 251, 0.3);
}

.tab-content-container {
    position: relative;
    min-height: 380px;
}

.tab-content {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out, visibility 0s 0.3s;
}

#tab1:checked ~ .tab-content-container #tab1-content,
#tab2:checked ~ .tab-content-container #tab2-content,
#tab3:checked ~ .tab-content-container #tab3-content {
    opacity: 1;
    position: relative;
    visibility: visible;
    transform: translateY(0);
    z-index: 1;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}

/* Terminal Container */
.terminal-container {
    background: var(--bg-primary);
    border: 1px solid var(--accent-40);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.terminal-header {
    background: var(--bg-secondary);
    padding: 0.4rem 0.8rem;
    border-bottom: 1px solid var(--accent-20);
    display: flex;
    align-items: center;
}

.terminal-title {
    font-family: "Courier New", monospace;
    font-size: 0.8rem;
    color: var(--brand-accent);
    letter-spacing: 0.05em;
}

.terminal-body {
    padding: 1rem;
    margin: 0;
    overflow-x: auto;
}

.terminal-code {
    margin: 0;
    font-family: "Courier New", monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.5;
}

.terminal-code .keyword {
    color: #ff79c6;
}

.terminal-code .function {
    color: var(--brand-accent);
}

/* Call to Action */
.call-to-action {
    border-top: 1px solid var(--accent-10);
    border-bottom: 1px solid var(--accent-10);
    background: rgba(1, 51, 74, 0.2);
}

/* Footer */
footer.footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--accent-20);
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
    font-size: 0.9rem;
}

footer a {
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--brand-accent);
}

footer ul {
    list-style: none;
    padding: 0;
}

footer ul li {
    margin-bottom: 0.6rem;
}

footer .products small {
    display: block;
    color: var(--text-muted);
}

.social-links .nav {
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.social-links a {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.social-links a:hover {
    color: var(--brand-accent);
}