:root {
    --bg: #0a0a0f;
    --card: #12121a;
    --primary: #8b5cf6;
    --primary-hover: #7c3aed;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #2a2a3a;
    --error: #ef4444;
    --success: #10b981;
    --glow: 0 0 20px rgba(139, 92, 246, 0.2);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 400px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 32px 26px;
    box-shadow: var(--glow);
    position: relative;
}

.container::after {
    content: '✦';
    position: absolute;
    top: 16px;
    right: 20px;
    color: var(--primary);
    font-size: 1.3rem;
    opacity: 0.4;
}

header {
    text-align: center;
    margin-bottom: 22px;
}

.logo {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 2px;
    color: var(--primary);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 6px;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    margin-bottom: 4px;
}

.subtitle {
    color: var(--muted);
    font-size: 0.9rem;
}

.subdomain-preview {
    font-family: 'Orbitron', monospace;
    color: var(--primary);
    font-size: 1.05rem;
    margin: 6px 0 2px;
    min-height: 1.3em;
    transition: all 0.2s ease;
}

.form-group {
    margin-bottom: 16px;
    position: relative;
}

label {
    display: block;
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

input {
    width: 100%;
    padding: 12px 14px;
    background: #0c0c12;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: all 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

input.valid {
    border-color: var(--success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

input.invalid {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.validation-msg {
    font-size: 0.75rem;
    margin-top: 5px;
    min-height: 16px;
    transition: color 0.2s;
}

.validation-msg.error {
    color: var(--error);
}

.validation-msg.success {
    color: var(--success);
}

.validation-msg.checking {
    color: var(--muted);
}

button {
    width: 100%;
    padding: 13px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: 'Orbitron', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 8px;
}

button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

button:active:not(:disabled) {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.login-link {
    text-align: center;
    margin-top: 16px;
    font-size: 0.8rem;
    color: var(--muted);
}

.login-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.login-link a:hover {
    text-decoration: underline;
}

.success-view {
    display: none;
    text-align: center;
    padding: 10px 0;
}

.success-view h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    margin: 8px 0 6px;
    color: var(--success);
}

.success-view p {
    color: var(--muted);
    font-size: 0.9rem;
}

.user-link {
    display: inline-block;
    margin-top: 16px;
    padding: 12px 18px;
    background: rgba(139, 92, 246, 0.12);
    border: 1px solid var(--primary);
    border-radius: 8px;
    color: var(--primary);
    font-family: 'Orbitron', monospace;
    text-decoration: none;
    transition: 0.2s;
}

.user-link:hover {
    background: rgba(139, 92, 246, 0.2);
}