:root {
    --pf-bg: #0d1117;
    --pf-panel: #161b22;
    --pf-border: #30363d;
    --pf-text: #e6edf3;
    --pf-muted: #8b949e;
    --pf-blue: #58a6ff;
    --pf-green: #3fb950;
    --pf-red: #f85149;
    --pf-yellow: #d29922;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--pf-bg);
    color: var(--pf-text);
    font-family: 'Segoe UI', Arial, sans-serif;
    min-height: 100vh;
}

a {
    color: var(--pf-blue);
}

.pf-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.5rem;
}

.pf-panel {
    background: var(--pf-panel);
    border: 1px solid var(--pf-border);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.pf-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--pf-border);
    background: var(--pf-panel);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pf-navbar .pf-brand {
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--pf-text);
    text-decoration: none;
}

.pf-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.pf-tab {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--pf-border);
    background: transparent;
    color: var(--pf-text);
    cursor: pointer;
}

.pf-tab.active {
    background: var(--pf-blue);
    border-color: var(--pf-blue);
    color: #05121f;
    font-weight: bold;
}

.pf-section {
    display: none;
}

.pf-section.active {
    display: block;
}

input, select, textarea, button {
    font-family: inherit;
    font-size: 1rem;
}

.pf-field {
    display: block;
    margin-bottom: 1rem;
}

.pf-field label {
    display: block;
    margin-bottom: 0.3rem;
    color: var(--pf-muted);
    font-size: 0.9rem;
}

.pf-field input[type="text"],
.pf-field input[type="email"],
.pf-field input[type="password"],
.pf-field input[type="tel"],
.pf-field input[type="number"],
.pf-field input[type="search"],
.pf-field select,
.pf-field textarea {
    width: 100%;
    padding: 0.6rem;
    background: #0d1117;
    border: 1px solid var(--pf-border);
    border-radius: 6px;
    color: var(--pf-text);
}

.pf-btn {
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    border: none;
    background: var(--pf-blue);
    color: #05121f;
    font-weight: bold;
    cursor: pointer;
}

.pf-btn.pf-btn-danger {
    background: var(--pf-red);
    color: #fff;
}

.pf-btn.pf-btn-secondary {
    background: transparent;
    border: 1px solid var(--pf-border);
    color: var(--pf-text);
}

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

table.pf-table th,
table.pf-table td {
    padding: 0.6rem;
    border-bottom: 1px solid var(--pf-border);
    text-align: left;
}

.pf-note {
    font-size: 0.85rem;
    color: var(--pf-muted);
}

.pf-note-warning {
    color: var(--pf-yellow);
}

.pf-toast {
    position: fixed;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    transition: bottom 0.3s;
    z-index: 2000;
}

.pf-toast-show {
    bottom: 20px;
}

.pf-toast-ok {
    background: var(--pf-green);
    color: #05210c;
}

.pf-toast-error {
    background: var(--pf-red);
    color: #fff;
}

.pf-auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}

.pf-auth-box {
    width: 100%;
    max-width: 420px;
}