:root {
    --bg-primary: #0a0a0a;
    --bg-topbar: rgba(10,10,10,0.95);
    --bg-card: rgba(20,20,20,0.8);
    --bg-card-hover: rgba(25,25,25,0.9);
    --bg-input: rgba(0,0,0,0.3);
    --bg-input-focus: rgba(0,0,0,0.5);
    --text-primary: #ffffff;
    --text-secondary: #999999;
    --text-tertiary: #666666;
    --text-table: #e5e5e5;
    --border-color: rgba(220,38,38,0.15);
    --border-color-hover: rgba(220,38,38,0.3);
    --accent-red: #dc2626;
    --logo-opacity: 0.05;
    --color-scheme: dark;
    --status-pending: #f59e0b;
    --status-approved: #10b981;
    --status-rejected: #ef4444;
}
:root.light-mode {
    --bg-primary: #f5f5f5;
    --bg-topbar: rgba(255,255,255,0.95);
    --bg-card: rgba(255,255,255,0.95);
    --bg-card-hover: rgba(255,255,255,1);
    --bg-input: rgba(255,255,255,0.9);
    --bg-input-focus: rgba(255,255,255,1);
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-tertiary: #666666;
    --text-table: #2d2d2d;
    --border-color: rgba(220,38,38,0.25);
    --border-color-hover: rgba(220,38,38,0.5);
    --accent-red: #dc2626;
    --logo-opacity: 0.08;
    --color-scheme: light;
}
* { box-sizing: border-box; }
html {
    color-scheme: var(--color-scheme);
}
body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: var(--bg-primary);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    color-scheme: var(--color-scheme);
    transition: background 0.4s ease;
}
body::before {
    content: '';
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 900px;
    height: 900px;
    background-image: url('../gc-logo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center center;
    opacity: var(--logo-opacity);
    z-index: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}
.topbar {
    position: relative;
    z-index: 10;
    background: var(--bg-topbar);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color-hover);
    transition: background 0.4s ease, border-color 0.4s ease;
}
.topbar-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 20px;
}
.logo img {
    height: 45px;
    width: auto;
    opacity: 0.95;
}
.logo-text {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-left: 2px solid #dc2626;
    padding-left: 20px;
    transition: color 0.4s ease;
}
.topbar-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}
.user-info {
    color: var(--text-secondary);
    font-size: 11px;
    letter-spacing: 1px;
    padding-right: 20px;
    border-right: 1px solid var(--border-color);
}
.theme-toggle {
    width: 50px;
    height: 26px;
    background: var(--bg-input);
    border: 1px solid var(--border-color-hover);
    border-radius: 13px;
    position: relative;
    cursor: pointer;
    transition: all 0.4s ease;
}
.theme-toggle:hover {
    border-color: var(--accent-red);
}
.theme-toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--accent-red);
    border-radius: 50%;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
.theme-toggle.active .theme-toggle-slider {
    left: 26px;
    box-shadow: 0 2px 8px rgba(220,38,38,0.4);
}
.theme-toggle-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    transition: opacity 0.3s ease;
}
.theme-toggle-icon.sun {
    left: 6px;
    opacity: 0.5;
}
.theme-toggle-icon.moon {
    right: 6px;
    opacity: 1;
}
.theme-toggle.active .theme-toggle-icon.sun {
    opacity: 1;
}
.theme-toggle.active .theme-toggle-icon.moon {
    opacity: 0.5;
}
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}
.theme-toggle.switching {
    animation: pulse 0.4s ease;
}
.logout {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 10px 30px;
    border: 1px solid var(--border-color-hover);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    transition: all 0.4s ease;
}
.logout:hover {
    color: var(--text-primary);
    border-color: var(--accent-red);
    background: rgba(220,38,38,0.1);
}
.container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px;
}
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 50px;
    margin-bottom: 40px;
    transition: all 0.4s ease;
}
.card:hover {
    border-color: var(--border-color-hover);
    background: var(--bg-card-hover);
}
h2, h3, h4, h5 {
    margin: 0 0 40px 0;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 300;
    letter-spacing: 3px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color-hover);
    padding-bottom: 20px;
}
form { margin-top: 0; }
.form-group {
    margin-bottom: 30px;
}
label {
    display: block;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}
input[type="text"], input[type="date"], input[type="datetime-local"], input[type="time"] {
    width: 100%;
    padding: 16px 20px;
    border: 1px solid var(--border-color-hover);
    border-radius: 0;
    font-size: 14px;
    transition: all 0.3s ease;
    background: var(--bg-input);
    color: var(--text-primary);
    color-scheme: var(--color-scheme);
}
input[type="text"]:focus, input[type="datetime-local"]:focus {
    outline: none;
    border-color: var(--accent-red);
    background: var(--bg-input-focus);
    box-shadow: 0 0 0 1px var(--border-color-hover);
}
input[type="text"]::placeholder {
    color: var(--text-tertiary);
}
input[type="datetime-local"]::-webkit-datetime-edit-text {
    color: var(--text-tertiary);
}
/* Datetime picker styling */
:root input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    filter: invert(0) brightness(1.2);
    cursor: pointer;
    opacity: 0.9;
}
:root.light-mode input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    filter: invert(0) brightness(0.5);
}
input[type="datetime-local"]::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
}
input[type="datetime-local"]::-webkit-datetime-edit {
    color: var(--text-primary);
}
input[type="datetime-local"]::-webkit-datetime-edit-fields-wrapper {
    color: var(--text-primary);
}
textarea {
    width: 100%;
    padding: 16px 20px;
    border: 1px solid var(--border-color-hover);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 14px;
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}
textarea:focus {
    outline: none;
    border-color: var(--accent-red);
    background: var(--bg-input-focus);
}
input[type="submit"], button.btn-submit {
    width: 100%;
    padding: 18px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--accent-red);
    border-radius: 0;
    cursor: pointer;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: all 0.4s ease;
    margin-top: 20px;
    display: block;
    text-align: center;
    text-decoration: none;
}
input[type="submit"]:hover, button.btn-submit:hover {
    background: var(--accent-red);
    color: #ffffff;
    box-shadow: 0 0 30px rgba(220,38,38,0.3);
}
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 30px;
}
th, td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
th {
    background: transparent;
    color: var(--text-tertiary);
    font-weight: 400;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 2px;
}
td {
    color: var(--text-table);
    font-size: 14px;
    font-weight: 400;
}
tr:hover td {
    background: rgba(220,38,38,0.03);
}
tr:last-child td {
    border-bottom: none;
}
.btn {
    padding: 12px 30px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color-hover);
    border-radius: 0;
    cursor: pointer;
    display: inline-block;
    text-decoration: none;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-right: 15px;
    transition: all 0.4s ease;
}
.btn:hover {
    background: rgba(220,38,38,0.1);
    color: var(--text-primary);
    border-color: var(--accent-red);
}
.btn-group {
    margin-top: 40px;
    display: flex;
    gap: 0;
}
.status-badge, .status-badge-table {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 12px;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 2px;
    min-width: 90px;
}
.status-admin-name {
    display: block;
    margin-top: 4px;
    font-size: 10px;
    color: var(--text-tertiary);
    letter-spacing: 0.5px;
    text-transform: none;
}
.status-pending, .status-Pending { background: rgba(245,158,11,0.15); color: var(--status-pending); border: 1px solid var(--status-pending); }
.status-approved, .status-Approved, .status-approved_with_changes { background: rgba(16,185,129,0.15); color: var(--status-approved); border: 1px solid var(--status-approved); }
.status-rejected, .status-denied, .status-Denied { background: rgba(239,68,68,0.15); color: var(--status-rejected); border: 1px solid var(--status-rejected); }

/* VPN Members Styling */
.vpn-members-container { margin-top: 0; }
.vpn-members-header { background: transparent; color: var(--text-primary); padding: 0 0 20px 0; border-bottom: 1px solid var(--border-color-hover); font-weight: 300; font-size: 16px; letter-spacing: 3px; text-transform: uppercase; display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
.vpn-count { background: transparent; padding: 0; border-left: 2px solid var(--accent-red); padding-left: 15px; font-size: 12px; color: var(--text-tertiary); letter-spacing: 1px; }
.vpn-members-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1px; background: var(--border-color-hover); max-height: 600px; overflow-y: auto; }
.vpn-member-card { background: var(--bg-card); padding: 20px 25px; border: none; border-left: 1px solid var(--border-color-hover); transition: all 0.3s ease; }
.vpn-member-card:hover { background: var(--bg-card-hover); border-left-color: var(--accent-red); }
.member-name { font-weight: 400; color: var(--text-primary); font-size: 14px; margin-bottom: 6px; letter-spacing: 0.5px; }
.member-username { color: var(--text-tertiary); font-size: 11px; font-family: 'Courier New', monospace; letter-spacing: 1px; text-transform: uppercase; }

/* Modal styles */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    display: none;
}
.modal.is-open {
    display: block;
}
.modal-content {
    background: var(--bg-card);
    margin: 5% auto;
    padding: 50px;
    border: 1px solid var(--border-color-hover);
    width: 80%;
    max-width: 600px;
    position: relative;
}
.modal-close {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    line-height: 20px;
    cursor: pointer;
    transition: color 0.3s;
}
.modal-close:hover { color: var(--accent-red); }
.modal-form { margin-top: 30px; }
.modal-form label {
    display: block;
    margin-bottom: 10px;
    margin-top: 20px;
}
.action-btn {
    padding: 8px 16px;
    margin: 0 5px;
    background: transparent;
    border: 1px solid var(--border-color-hover);
    cursor: pointer;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}
.action-btn:hover {
    border-color: var(--accent-red);
    color: var(--text-primary);
}
.action-btn.approve { border-color: var(--status-approved); color: var(--status-approved); }
.action-btn.approve:hover { background: rgba(16,185,129,0.1); }
.action-btn.reject { border-color: var(--status-rejected); color: var(--status-rejected); }
.action-btn.reject:hover { background: rgba(239,68,68,0.1); }

/* Scrollbars */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-input);
    border-left: 1px solid var(--border-color);
}
::-webkit-scrollbar-thumb {
    background: var(--accent-red);
    border-radius: 0;
    border: 2px solid var(--bg-card);
}
::-webkit-scrollbar-thumb:hover {
    background: #b91c1c;
    border-color: var(--bg-card-hover);
}