:root[data-theme="dark"] {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --panel-bg: rgba(30, 41, 59, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

:root[data-theme="light"] {
    --bg-color: #f1f5f9;
    --text-color: #0f172a;
    --panel-bg: rgba(255, 255, 255, 0.7);
    --border-color: rgba(0, 0, 0, 0.1);
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
}

button {
    cursor: pointer;
    border: none;
    border-radius: 8px;
    padding: 10px 16px;
    font-weight: 600;
    transition: all 0.2s;
}

#themeToggleBtn {
    background: var(--panel-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    box-shadow: var(--glass-shadow);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.login-container {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.hidden {
    display: none !important;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.brain-icon {
    font-size: 32px;
}

h1 {
    margin: 0;
    font-size: 24px;
}

.subtitle {
    margin-top: 0;
    margin-bottom: 30px;
    opacity: 0.7;
    font-size: 14px;
}

.input-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 14px;
    font-weight: 600;
}

input {
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-color);
    font-family: inherit;
    outline: none;
}

input:focus {
    border-color: var(--primary-color);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    width: 100%;
    padding: 12px;
    font-size: 16px;
}

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

/* Admin Styles */
.admin-container {
    padding: 40px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.admin-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.admin-content header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.admin-content header button {
    width: auto;
}

.table-container {
    max-width: none;
    padding: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

th {
    opacity: 0.7;
    font-weight: 600;
}