:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent: #9d4edd;
    --accent-light: #c77dff;
    --accent-lighter: #e0aaff;
    --border: #404040;
    --success: #00d084;
    --error: #ff6b6b;
}

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

html, body {
    width: 100%;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
}

.auth-container {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.auth-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(90deg, rgba(157, 78, 221, 0.03) 1px, transparent 1px),
        linear-gradient(rgba(157, 78, 221, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    top: 0;
    left: 0;
    z-index: 1;
}

.auth-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 450px;
    padding: 20px;
}

.auth-box {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.auth-header {
    text-align: center;
    margin-bottom: 35px;
}

.auth-header h1 {
    font-size: 36px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 30px;
    background-color: var(--bg-primary);
    border-radius: 8px;
    padding: 4px;
}

.tab-btn {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn.active {
    background-color: var(--bg-tertiary);
    color: var(--accent-light);
    box-shadow: 0 4px 12px rgba(157, 78, 221, 0.2);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

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

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(157, 78, 221, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
}

.auth-btn,
.action-btn,
button[type="submit"],
.icon-btn,
.close-btn,
.close-panel-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
}

.auth-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: #fff;
    margin-top: 10px;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(157, 78, 221, 0.3);
}

.auth-btn:active {
    transform: translateY(0);
}

.message {
    margin-top: 15px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.success {
    background-color: rgba(0, 208, 132, 0.2);
    color: var(--success);
    border: 1px solid rgba(0, 208, 132, 0.3);
}

.message.error {
    background-color: rgba(255, 107, 107, 0.2);
    color: var(--error);
    border: 1px solid rgba(255, 107, 107, 0.3);
}

.message.info {
    background-color: rgba(157, 78, 221, 0.2);
    color: var(--accent-light);
    border: 1px solid rgba(157, 78, 221, 0.3);
}

.auth-footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
}

@media (max-width: 480px) {
    .auth-box {
        padding: 30px 24px;
    }

    .auth-header h1 {
        font-size: 28px;
    }

    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 16px;
    }
}

.action-btn {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    color: var(--accent-light);
    border: 1px solid var(--border);
    font-size: 16px;
}

.action-btn:hover {
    background-color: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.icon-btn {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 8px 12px;
    font-size: 18px;
}

.icon-btn:hover {
    background-color: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.close-btn,
.close-panel-btn {
    background-color: transparent;
    color: var(--text-secondary);
    font-size: 24px;
    padding: 0;
    width: 32px;
    height: 32px;
}

.close-btn:hover,
.close-panel-btn:hover {
    color: var(--error);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
}

.modal-body input {
    width: 100%;
    padding: 10px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.server-tabs,
.friends-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 15px;
    background-color: var(--bg-primary);
    border-radius: 8px;
    padding: 4px;
}

.server-tab-btn,
.friends-tab-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}

.server-tab-btn.active,
.friends-tab-btn.active {
    background-color: var(--bg-tertiary);
    color: var(--accent-light);
}

.server-tab-content,
.friends-tab-content {
    display: none;
}

.server-tab-content.active,
.friends-tab-content.active {
    display: block;
}