:root {
    /* Fine Dining Elegance Palette */
    --primary-color: #D4AF37; /* Metallic Gold */
    --secondary-color: #AA8C2C; /* Darker Gold */
    --accent-color: #F3E5AB; /* Champagne */
    --bg-color: #0a0a0a; 
    --card-bg: rgba(20, 20, 20, 0.4); /* Frosted glass base */
    --text-main: #F8F9FA;
    --text-light: #CCCCCC;
    --border-glass: rgba(255, 255, 255, 0.1);
    --border-gold: rgba(212, 175, 55, 0.4);
    --shadow-soft: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 15px 35px rgba(212, 175, 55, 0.15);
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

/* Custom Webkit Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: rgba(0, 0, 0, 0.3); }
::-webkit-scrollbar-thumb { background: var(--border-gold); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-color); }

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
}

/* --- Video Background --- */
.video-bg {
    position: fixed;
    right: 0; bottom: 0;
    min-width: 100%; min-height: 100%;
    width: auto; height: auto;
    z-index: -2;
    object-fit: cover;
    filter: brightness(0.8);
}

.bg-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(10,10,10,0.85) 0%, rgba(20,20,20,0.6) 100%);
    z-index: -1;
}

/* --- Header & Typography --- */
header {
    width: 100%;
    max-width: 1200px;
    padding: 50px 20px 30px;
    text-align: center;
    position: relative;
}

.arka-logo {
    font-family: 'Playfair Display', serif;
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #111;
    width: 55px; height: 55px;
    border-radius: 50%; /* Classier circular icon */
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 300;
    margin-top: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.welcome-subtitle {
    font-size: 1.2rem;
    color: var(--accent-color);
    font-family: 'Playfair Display', serif;
    font-style: italic;
    margin-top: 15px;
    animation: fadeIn 0.6s ease-out;
}

.welcome-title-text { font-family: 'Montserrat', sans-serif; font-size: 0.85rem; color: var(--text-main); font-style: normal; display: block; margin-top: 4px; letter-spacing: 1px; }
.welcome-desc-text { font-size: 0.8rem; color: var(--text-light); font-style: normal; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Auth Buttons --- */
.auth-container {
    position: absolute;
    top: 20px; right: 20px;
    display: flex; gap: 12px; align-items: center;
}

.auth-btn {
    background: rgba(20, 20, 20, 0.6);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-gold);
    color: var(--primary-color);
    padding: 8px 18px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 500;
    font-family: inherit;
    transition: var(--transition);
}

.auth-btn i { margin-right: 6px; }

.auth-btn:hover {
    background: var(--primary-color);
    color: #111;
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.4);
}

.roles-btn { color: var(--text-main); border-color: var(--border-glass); }
.roles-btn:hover { background: rgba(255, 255, 255, 0.1); color: var(--primary-color); border-color: var(--primary-color); box-shadow: none; }

/* --- Search Bar --- */
.search-container {
    width: 100%; max-width: 600px;
    margin: 0 auto 40px auto;
    position: relative; padding: 0 20px;
}

#searchInput {
    width: 100%;
    padding: 16px 20px 16px 50px;
    font-size: 1.05rem;
    border: 1px solid var(--border-glass);
    border-top: 1px solid rgba(255,255,255,0.2); /* Glassmorphism highlight */
    border-left: 1px solid rgba(255,255,255,0.2);
    border-radius: 30px; 
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-main);
    transition: var(--transition);
    box-shadow: var(--shadow-soft);
    outline: none; font-family: inherit;
}

#searchInput::placeholder { color: #888; font-weight: 300; }
#searchInput:focus { border-color: var(--primary-color); background: rgba(10, 10, 10, 0.7); box-shadow: 0 0 20px rgba(212, 175, 55, 0.2); }

.search-icon {
    position: absolute; left: 40px; top: 50%; transform: translateY(-50%);
    color: var(--text-light); font-size: 1.2rem; pointer-events: none; transition: var(--transition);
}
#searchInput:focus ~ .search-icon { color: var(--primary-color); }

/* --- Grid & Cards --- */
.grid-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px; max-width: 1100px; width: 95%; padding-bottom: 80px;
}

.shortcut-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-top: 1px solid rgba(255,255,255,0.15); /* Beveled glass edge */
    border-left: 1px solid rgba(255,255,255,0.15);
    border-radius: 16px;
    padding: 35px 20px;
    text-decoration: none; color: var(--text-main);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    position: relative; overflow: hidden; cursor: pointer;
}

.icon-wrapper { font-size: 2.2rem; color: var(--primary-color); margin-bottom: 15px; transition: var(--transition); z-index: 2; }
.card-title { font-size: 1.05rem; font-weight: 500; z-index: 2; transition: var(--transition); text-align: center; }

.shortcut-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
    background: rgba(30, 30, 30, 0.6);
}
.shortcut-card:hover .icon-wrapper { transform: scale(1.15); color: var(--accent-color); }
.shortcut-card:hover .card-title { color: var(--primary-color); }

.lock-icon { position: absolute; top: 15px; right: 15px; color: var(--primary-color); font-size: 0.9rem; opacity: 0.7; }

/* --- Modals --- */
.modal-overlay { display: none; position: fixed; z-index: 1000; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); backdrop-filter: blur(5px); }

.close-btn { background: transparent; border: none; color: var(--text-light); font-size: 2rem; cursor: pointer; transition: color 0.2s; line-height: 1; }
.close-btn:hover { color: var(--primary-color); }

/* App Window */
.window-frame {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 95%; height: 95%; max-width: 1400px;
    background: rgba(15, 15, 15, 0.95);
    border: 1px solid var(--primary-color);
    border-radius: 12px; overflow: hidden; box-shadow: 0 25px 50px rgba(0,0,0,0.8);
}
.window-header { background: #000; color: var(--primary-color); padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-gold); font-family: 'Playfair Display', serif; font-size: 1.2rem; letter-spacing: 1px; }
.window-body { height: calc(100% - 53px); position: relative; }

/* Selection & Login Boxes */
.selection-box {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 90%; max-width: 420px;
    background: rgba(20, 20, 20, 0.85); backdrop-filter: blur(20px);
    border: 1px solid var(--border-gold);
    border-top: 1px solid rgba(255,255,255,0.2);
    border-radius: 16px; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.8);
}
.selection-header { background: rgba(0,0,0,0.5); border-bottom: 1px solid var(--border-glass); color: var(--primary-color); padding: 16px 20px; text-align: center; position: relative; font-family: 'Playfair Display', serif; }
.selection-header h3 { margin: 0; font-size: 1.3rem; font-weight: 600; }

.selection-body { padding: 25px; display: flex; flex-direction: column; gap: 12px; }

.selection-btn {
    padding: 15px; background: rgba(255,255,255,0.03); border: 1px solid var(--border-glass);
    border-radius: 8px; color: var(--text-main); font-size: 1rem; cursor: pointer; transition: var(--transition);
    display: flex; align-items: center; gap: 12px; font-family: inherit;
}
.selection-btn i { color: var(--primary-color); }
.selection-btn:hover { background: rgba(212, 175, 55, 0.1); border-color: var(--primary-color); transform: translateX(5px); }

/* Login Specifics */
.login-input {
    width: 100%; padding: 14px; border: 1px solid var(--border-glass); border-radius: 8px; font-size: 1rem; outline: none; transition: var(--transition);
    background: rgba(0,0,0,0.4); color: var(--text-main); font-family: inherit;
}
.login-input:focus { border-color: var(--primary-color); background: rgba(0,0,0,0.7); }
.login-input::placeholder { color: #666; }

.login-btn-submit {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #111; border: none; padding: 14px; border-radius: 8px; font-size: 1.05rem; cursor: pointer; font-weight: 600; transition: var(--transition); font-family: inherit; margin-top: 10px; text-transform: uppercase; letter-spacing: 1px;
}
.login-btn-submit:hover { filter: brightness(1.1); box-shadow: 0 5px 15px rgba(212, 175, 55, 0.4); }

/* --- Loaders & Progress --- */
.loader-container { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(15,15,15,0.9); display: none; flex-direction: column; justify-content: center; align-items: center; z-index: 10; }
.fb-spinner { font-size: 3.5rem; color: var(--primary-color); margin-bottom: 20px; animation: stir-pot 1.5s infinite ease-in-out; }
.loader-text { color: var(--primary-color); font-weight: 400; font-size: 1.2rem; animation: pulse-text 1.5s infinite ease-in-out; font-family: 'Playfair Display', serif; letter-spacing: 1px; }

@keyframes stir-pot { 0% { transform: rotate(-15deg) scale(1); } 50% { transform: rotate(15deg) scale(1.1); color: var(--accent-color); } 100% { transform: rotate(-15deg) scale(1); } }
@keyframes pulse-text { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }

.progress-wrapper { display: none; flex-direction: column; gap: 8px; margin: 15px 0 5px; }
.progress-label { font-size: 0.85rem; color: var(--text-light); display: flex; justify-content: space-between; font-weight: 500; }
.progress-track { width: 100%; height: 6px; background-color: rgba(255,255,255,0.1); border-radius: 10px; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--secondary-color), var(--primary-color)); transition: width 0.4s ease-out; box-shadow: 0 0 10px var(--primary-color); }

/* Roles Modal Specifics */
.role-section { margin-bottom: 15px; font-size: 0.95rem; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 10px; }
.role-section:last-child { border-bottom: none; }
.role-section strong { color: var(--primary-color); display: block; margin-bottom: 6px; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 1px; }
.role-list { margin-left: 20px; margin-top: 5px; color: var(--text-main); font-weight: 300; }
.role-list li { margin-bottom: 4px; }

.hidden { display: none !important; }

/* --- Responsive Design --- */
@media (max-width: 900px) { .grid-container { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { 
    .grid-container { grid-template-columns: repeat(2, 1fr); gap: 15px; } 
    .arka-logo { font-size: 2.2rem; }
    .auth-container { top: 15px; right: 15px; gap: 8px; }
    .auth-btn { padding: 6px 12px; font-size: 0.9rem; }
    header { padding-top: 70px; } /* Room for auth buttons on mobile */
}
@media (max-width: 350px) { .grid-container { grid-template-columns: 1fr; } }