:root {
    --bg-color: #0c0a15;
    --card-bg: rgba(10, 10, 10, 0.75);
    --border-color: rgba(191, 90, 242, 0.25);
    --text-primary: #f8fafc;
    --text-secondary: #bf5af2;
    --accent-color: #bf5af2;
    --accent-hover: #a83fd9;
    --success-color: #00d1ff;
    --danger-color: #ff3333;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at top right, rgba(191, 90, 242, 0.15) 0%, transparent 40%),
                      radial-gradient(circle at bottom left, rgba(0, 209, 255, 0.1) 0%, transparent 40%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
}

nav h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #60a5fa, #bf5af2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logout-btn, .nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: opacity 0.2s;
}

.logout-btn:hover, .nav-link:hover {
    opacity: 0.8;
}

/* Bubble Navbar */
.bubble-nav {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 999px;
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--border-color);
    width: fit-content;
    margin: 0 auto 2rem;
}

.bubble-nav .nav-link {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.bubble-nav .nav-link:hover {
    opacity: 1;
}

/* Buttons */
.btn {
    background-color: var(--accent-color);
    color: var(--bg-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    background-color: var(--accent-hover);
}

.btn:active {
    transform: scale(0.98);
}

/* Form Elements */
.glass-select {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: inherit;
    width: 100%;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    transition: border-color 0.2s, background-color 0.2s;
}

.glass-select:hover {
    background-color: rgba(30, 41, 59, 0.7);
    border-color: rgba(255, 255, 255, 0.2);
}

.glass-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.glass-select option {
    background-color: var(--bg-color);
    color: var(--text-primary);
}

/* Tables */
.client-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}

.client-table th, .client-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.client-table th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-badge.active {
    background-color: rgba(191, 90, 242, 0.2);
    color: #bf5af2;
    border: 1px solid rgba(191, 90, 242, 0.4);
}

.status-badge.offline {
    background-color: rgba(148, 163, 184, 0.2);
    color: #cbd5e1;
}

/* Login specific */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-card {
    padding: 3rem;
    text-align: center;
    max-width: 400px;
    width: 100%;
}

.login-card h1 {
    margin-bottom: 1rem;
    font-size: 2rem;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.btn-google {
    background-color: white;
    color: #1f2937;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
}

.btn-google:hover {
    background-color: #f3f4f6;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .glass-panel {
        padding: 1.5rem !important;
    }
    
    .nav-logo-container {
        flex-direction: column;
        align-items: center !important;
        text-align: center;
        gap: 1rem;
    }
    
    .table-responsive {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .client-table th, .client-table td {
        padding: 0.75rem 0.5rem;
        white-space: nowrap;
    }
    
    nav {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.5rem 1rem;
        text-align: center;
    }

    .user-info {
        flex-direction: column;
        width: 100%;
        gap: 0.75rem;
    }

    .user-info a, .user-info span {
        margin-right: 0 !important;
        width: 100%;
        text-align: center;
    }

    .email {
        font-size: 0.8rem;
        opacity: 0.8;
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 0.5rem;
    }

    .bubble-nav {
        width: 100%;
        border-radius: 12px;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
        flex-wrap: wrap;
    }

    .bubble-nav .nav-link {
        font-size: 0.8rem;
    }
}

/* Table Responsiveness */
.table-container {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Flash Messages */
.flash-message {
    padding: 1rem 1.5rem;
    margin: 0 auto 2rem;
    border-left: 4px solid var(--accent-color);
    font-weight: 500;
    max-width: 1000px;
    width: calc(100% - 4rem);
}

.flash-message.error, .flash-message.danger {
    border-left-color: var(--danger-color);
}

.flash-message.success {
    border-left-color: var(--success-color);
}

/* Routing Path Visualization */
.routing-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    margin-top: 1.5rem;
    padding: 1.5rem;
    flex-wrap: wrap;
}

.routing-card {
    background: rgba(15, 15, 15, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    width: 260px;
    box-shadow: 0 4px 20px rgba(191, 90, 242, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.routing-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(191, 90, 242, 0.15);
    border-color: rgba(191, 90, 242, 0.5);
}

.routing-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.routing-card p {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.routing-card .meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.routing-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.routing-line {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--success-color));
    position: relative;
}

.routing-dot {
    width: 8px;
    height: 8px;
    background-color: var(--success-color);
    border-radius: 50%;
    position: absolute;
    top: -3px;
    left: 0;
    animation: move-dot 2s linear infinite;
    box-shadow: 0 0 8px var(--success-color);
}

@keyframes move-dot {
    0% { left: 0%; }
    100% { left: 100%; }
}

/* Offline/Rolling Animation Overrides */
.routing-arrow.offline .routing-dot {
    animation: none;
    background-color: var(--danger-color);
    box-shadow: 0 0 8px var(--danger-color);
    left: 50%;
    transform: translateX(-50%);
}

.routing-arrow.offline .routing-line {
    background: var(--danger-color);
}

.routing-arrow.rolling .routing-dot {
    animation: none;
    background-color: #ffc107;
    box-shadow: 0 0 8px #ffc107;
    left: 50%;
    transform: translateX(-50%);
}

.routing-arrow.rolling .routing-line {
    background: #ffc107;
}

@media (max-width: 768px) {
    .routing-container {
        flex-direction: column;
        gap: 1.5rem;
    }
    .routing-line {
        width: 2px;
        height: 60px;
        background: linear-gradient(180deg, var(--accent-color), var(--success-color));
    }
    .routing-arrow.offline .routing-line {
        background: var(--danger-color) !important;
    }
    .routing-arrow.rolling .routing-line {
        background: #ffc107 !important;
    }
    .routing-dot {
        width: 8px;
        height: 8px;
        top: 0;
        left: -3px;
        animation: move-dot-vertical 2s linear infinite;
    }
    .routing-arrow.offline .routing-dot,
    .routing-arrow.rolling .routing-dot {
        animation: none;
        top: 50%;
        left: -3px;
        transform: translateY(-50%);
    }
}

@keyframes move-dot-vertical {
    0% { top: 0%; }
    100% { top: 100%; }
}

/* Toggle Switch Styles */
.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .3s;
    border-radius: 24px;
    border: 1px solid var(--border-color);
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-primary);
    transition: .3s;
    border-radius: 50%;
}

.switch input:checked + .slider {
    background-color: var(--accent-color);
    border-color: var(--accent-hover);
    box-shadow: 0 0 8px rgba(191, 90, 242, 0.5);
}

.switch input:checked + .slider:before {
    transform: translateX(24px);
    background-color: white;
}

/* Responsive panel header and layout components */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.roll-form-container {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: flex-end;
}

.admin-add-form {
    display: flex;
    gap: 0.5rem;
}

@media (max-width: 768px) {
    .panel-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1.5rem;
        text-align: center;
    }
    .exit-node-layout {
        text-align: left; /* Keep exit node details left-aligned */
        gap: 2rem;
    }
    .exit-node-layout > div,
    .exit-node-layout > form {
        width: 100%;
    }
    .roll-form-container {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }
    .roll-form-container > div {
        width: 100%;
    }
    .roll-form-container .btn {
        width: 100%;
        text-align: center;
    }
    .admin-add-form {
        flex-direction: column;
        width: 100%;
    }
    .admin-add-form input {
        width: 100%;
    }
    .admin-add-form .btn {
        width: 100%;
        text-align: center;
    }
}