:root {
    --bg-color: #000000;
    --text-color: #ffffff;
    --secondary-text: #a0a0a0;
    --accent-color: #00ffff;
    --modal-bg: #111111;
    --border-color: #333333;
    --header-font-size: 0.8rem;
    --nav-font-size: clamp(1.5rem, 4vw, 2.5rem);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    /* Remove gradient background */
    background-color: var(--bg-color);
    /* background-image: repeating-linear-gradient(...) removed */
}

body {
    color: var(--text-color);
    font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-weight: 300;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
    position: relative;
}

/* Background Layer Styling */
.background-layers {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.bg-layer {
    position: absolute;
    top: -5%;
    left: -5%;
    width: 110%; /* Slightly larger for movement */
    height: 110%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out, transform 0.2s linear;
    will-change: transform, opacity;
}

/* Video Background Styling */
.bg-layer video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#bg-layer-3 {
    overflow: hidden;
}

.bg-layer.visible {
    opacity: 1;
}

/* Top Bar Elements */
.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    pointer-events: none;
}

.top-title,
.top-year {
    font-size: var(--header-font-size);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    pointer-events: auto;
}

.top-title {
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
}

.top-title::before {
    content: 'AutoSecure';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.top-title:hover::before {
    opacity: 1;
    animation: glitch 0.3s infinite;
    color: var(--accent-color);
}

.top-title:hover {
    color: transparent;
}

.top-year {
    position: absolute;
    right: 2rem;
}

/* Info Card Styling */
.info-card {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: rgba(17, 17, 17, 0.95);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    width: max-content;
    max-width: 300px;
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0.3s;
    text-transform: none;
    margin-top: 1rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

.info-card::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: rgba(17, 17, 17, 0.95);
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
}

.info-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.info-card p {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-color);
    font-weight: 400;
}

.top-title:hover .info-card {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0s;
}

/* Main Content Container */
.container {
    flex-grow: 1;
    display: flex;
    justify-content: left;
    align-items: center;
    padding: 6rem 2rem 2rem 2rem;
    position: relative;
    z-index: 10;
    overflow-y: auto;
}

.feature-nav {
    text-align: left !important;
}

/* Logo Styling */
.logo {
    position: absolute;
    top: 1rem;
    left: 2rem;
    height: 100%;
    display: flex;
    align-items: center;
}

.logo img {
    height: 8rem;
    width: auto;
}

/* Feature Navigation List - With Glitch Effect */
.feature-nav {
    text-align: center;
    max-width: 800px;
}

.feature-nav ul {
    list-style: none;
}

.feature-nav li {
    margin-bottom: 0.75em;
}

.feature-nav a {
    font-size: var(--nav-font-size);
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: transform 0.3s ease, color 0.3s ease;
    line-height: 1.2;
    text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
    position: relative;
}

.feature-nav a:hover {
    color: var(--accent-color);
    transform: translateX(10px);
    animation: glitch 0.3s infinite;
}

@keyframes glitch {
    0% {
        transform: translateX(10px) skew(0deg);
        text-shadow: -2px 0 var(--accent-color);
    }
    20% {
        transform: translateX(10px) skew(-2deg);
        text-shadow: 2px 0 #ff00ff;
    }
    40% {
        transform: translateX(10px) skew(2deg);
        text-shadow: -2px 0 #00ffff;
    }
    60% {
        transform: translateX(10px) skew(0deg);
        text-shadow: 2px 2px var(--accent-color);
    }
    80% {
        transform: translateX(10px) skew(-1deg);
        text-shadow: -2px -1px #ff00ff;
    }
    100% {
        transform: translateX(10px) skew(0deg);
        text-shadow: 1px 0 #00ffff;
    }
}

/* Details Modal Overlay */
.details-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0s linear 0.4s;
}

.details-modal.active {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.4s ease;
}

/* Modal Content Card */
.modal-content {
    background-color: var(--modal-bg);
    padding: 2rem; /* Padding inside the card */
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    max-width: 700px; /* Max width of the card */
    width: 100%; /* Responsive width */
    position: relative;
    max-height: 85vh; /* Limit height */
    overflow-y: auto; /* Scroll if content overflows */
    transform: scale(0.95);
    transition: transform 0.4s ease;
}

.details-modal.active .modal-content {
    transform: scale(1);
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: 1px solid var(--secondary-text);
    color: var(--secondary-text);
    padding: 0.3em 0.8em;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color 0.3s ease, border-color 0.3s ease;
}

.close-btn:hover {
    color: var(--text-color);
    border-color: var(--text-color);
}

/* Details Content Styling inside Modal */
#details-content-container {
    padding-right: 4rem; /* Space for the close button */
}

.detail-header {
    font-size: 0.8rem;
    color: var(--secondary-text);
    margin-bottom: 1.5em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

#details-content-container h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-color); /* White title in modal */
    margin-bottom: 1em;
    font-weight: 700;
}

.detail-body p {
    color: var(--secondary-text);
    margin-bottom: 1em;
    font-size: 0.95rem;
}

.detail-body ul {
    list-style: none;
    padding-left: 0;
}

.detail-body li {
    margin-bottom: 0.8em;
    position: relative;
    padding-left: 1.5em;
    font-size: 0.95rem;
}

.detail-body li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.detail-body strong {
    color: var(--text-color);
    font-weight: 600;
}

.detail-body em {
    color: #888;
    font-style: normal;
}

/* Hide original detail divs */
.feature-details {
    display: none;
}

/* Footer styles removed */

/* Responsive Adjustments */
@media (max-width: 768px) {
    .top-bar {
        padding: 0.8rem 1rem;
    }
    .top-year {
        right: 1rem;
    }
    .container {
        padding: 5rem 1rem 1rem 1rem;
    }
    .modal-content {
        padding: 1.5rem;
        max-height: 90vh;
    }
    #details-content-container {
        padding-right: 3.5rem;
    }
    .close-btn {
        top: 0.8rem;
        right: 0.8rem;
    }
    .logo {
        top: 0.5rem;
        left: 0.1rem;
    }
    .logo img {
        height: 5rem;
    }
    .info-card {
        max-width: 250px;
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .feature-nav a {
       line-height: 1.3;
    }
    .details-modal {
        padding: 1rem;
    }
     .modal-content {
        padding: 1.5rem 1rem;
    }
    .close-btn {
        padding: 0.2em 0.6em;
    }
     #details-content-container h2 {
        margin-bottom: 0.8em;
     }
     .detail-body p, .detail-body li {
        font-size: 0.9rem;
     }
    .logo img {
        height: 5rem;
    }
    .feature-nav a:hover {
        transform: translateX(5px);
    }
    .info-card {
        max-width: 200px;
        font-size: 0.8rem;
    }
    .info-card h3 {
        font-size: 0.9rem;
    }
    .info-card p {
        font-size: 0.8rem;
    }
}

/* Grain Overlay */
.grain-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.7;
}

.container {
    z-index: 10; /* Ensure this is above the background-layers */
}

/* Mobile Touch Specific Styles */
@media (hover: none) {
    .feature-nav a.glitch-only {
        color: var(--accent-color);
        transform: translateX(10px);
        animation: glitch 0.3s infinite;
    }

    .feature-nav a.show-card {
        color: var(--accent-color);
        transform: translateX(10px);
    }

    .top-title.glitch-only::before {
        opacity: 1;
        animation: glitch 0.3s infinite;
        color: var(--accent-color);
    }

    .top-title.glitch-only {
        color: transparent;
    }

    .top-title.show-card::before {
        opacity: 1;
        color: var(--accent-color);
    }

    .top-title.show-card {
        color: transparent;
    }

    .top-title.show-card .info-card {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0s;
        pointer-events: auto;
    }

    /* Ensure info card is hidden when not showing */
    .info-card {
        pointer-events: none !important;
    }

    .top-title.show-card .info-card {
        pointer-events: auto !important;
    }
}