:root {
    --primary-color: #0c1a2b;
    /* Deep Navy */
    --secondary-color: #c9a050;
    /* Gold */
    --text-color: #e0e0e0;
    --bg-color: #050a12;
    --card-bg: #111e33;
    --input-bg: #1a2a44;
    --success-color: #28a745;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

h1,
h2,
h3 {
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    padding: 10px 0;
    background-color: var(--primary-color);
    border-bottom: 2px solid var(--secondary-color);
    position: relative;
    /* For mobile menu positioning */
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    /* Allow wrapping on small screens */
}

.nav-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
    margin: 0;
    padding: 0;
}

.nav-links li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links li a:hover {
    color: var(--secondary-color);
}

.header-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.auth-buttons {
    display: flex;
    gap: 10px;
}

.btn-sm {
    padding: 5px 15px;
    font-size: 0.9rem;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 4px;
    border: 1px solid var(--secondary-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--secondary-color);
}

.btn-outline:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: var(--secondary-color);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: #fff;
    transform: translateY(-2px);
}

.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(rgba(5, 10, 18, 0.8), rgba(5, 10, 18, 0.8)), url('https://source.unsplash.com/random/1920x1080?office,dark') no-repeat center center/cover;
}

.cards-container {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.card {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 8px;
    width: 300px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #aaa;
}

input,
textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--input-bg);
    border: 1px solid #2a3a55;
    color: #fff;
    border-radius: 4px;
    box-sizing: border-box;
}

input:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.footer {
    text-align: center;
    padding: 40px;
    margin-top: 50px;
    border-top: 1px solid #222;
    color: #666;
}

/* Dashboard Specifics */
.chat-placeholder {
    background-color: var(--card-bg);
    height: 400px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed #444;
}

/* --- Mobile Responsiveness --- */

/* Mobile Menu Button - Hidden by default */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--secondary-color);
    font-size: 2rem;
    cursor: pointer;
}

@media (max-width: 992px) {
    .container {
        padding: 15px;
    }

    .card {
        width: 45%;
        /* 2 cards per row on tablets */
    }
}

@media (max-width: 768px) {

    /* Header & Nav */
    .mobile-menu-btn {
        display: block;
    }

    .logo-img {
        height: 60px !important;
        /* Smaller logo */
    }

    .nav-wrapper {
        display: none;
        /* Hidden by default */
        flex-direction: column;
        width: 100%;
        margin-top: 20px;
        background-color: var(--bg-color);
        padding: 20px 0;
        border-top: 1px solid #222;
    }

    .nav-wrapper.active {
        display: flex;
        /* Show when active */
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        text-align: center;
        gap: 15px;
    }

    .header-actions {
        flex-direction: column;
        width: 100%;
        margin-top: 20px;
    }

    /* Layout Adjustments */
    .hero {
        padding: 60px 15px;
    }

    .cards-container {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .card {
        width: 100%;
        /* Full width cards */
        box-sizing: border-box;
    }

    h1 {
        font-size: 1.8rem;
    }

    .auth-buttons {
        flex-direction: row;
        justify-content: center;
    }
}