/* siegechess.com/assets/styles.css */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #f8fafc;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    line-height: 1.5;
}

.main-container {
    width: 100%;
    max-width: 1000px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-section { text-align: left; }

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #cbd5e1;
    margin-bottom: 2rem;
    font-weight: 400;
}

.feature-list { list-style: none; margin-bottom: 2rem; }

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 1rem;
    color: #e2e8f0;
}

.feature-icon {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    margin-right: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.form-section {
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(71, 85, 105, 0.3);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.form-header { text-align: center; margin-bottom: 2rem; }
.form-title { font-size: 1.75rem; font-weight: 600; margin-bottom: 0.5rem; color: #f8fafc; }
.form-subtitle { color: #94a3b8; font-size: 0.95rem; }

.guest-notice {
    background: linear-gradient(135deg, #1e40af, #3730a3);
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    text-align: center;
    border: 1px solid rgba(59, 130, 246, 0.3);
}
.guest-notice a { color: #93c5fd; text-decoration: none; font-weight: 500; }
.guest-notice a:hover { color: #dbeafe; text-decoration: underline; }

.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: #f1f5f9; font-size: 0.9rem; }

.form-input, .form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid rgba(71, 85, 105, 0.5);
    border-radius: 8px;
    color: #f8fafc;
    font-size: 1rem;
    transition: all 0.2s ease;
}
.form-input:focus, .form-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: rgba(15, 23, 42, 0.95);
}
.form-input::placeholder { color: #64748b; }

.btn {
    width: 100%;
    padding: 0.875rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    text-decoration: none;
    display: block;
}
.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.3);
}
.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    box-shadow: 0 6px 20px 0 rgba(59, 130, 246, 0.4);
    transform: translateY(-1px);
}
.btn-cancel {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.4);
}
.btn-cancel:hover { background: rgba(239, 68, 68, 0.3); color: #fecaca; }

.status-message {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
    min-height: 1rem;
}
.status-error { background: rgba(239, 68, 68, 0.1); border: 1px solid rgba(239, 68, 68, 0.3); color: #fca5a5; }
.status-success { background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.3); color: #86efac; }
.status-info { background: rgba(59, 130, 246, 0.1); border: 1px solid rgba(59, 130, 246, 0.3); color: #93c5fd; }

.form-links {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(71, 85, 105, 0.3);
}
.form-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    margin: 0 0.5rem;
    transition: color 0.2s ease;
}
.form-links a:hover { color: #3b82f6; }
.hidden { display: none; }

.welcome-user {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(16, 185, 129, 0.1);
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid rgba(16, 185, 129, 0.3);
    margin-bottom: 1.5rem;
}
.user-info { display: flex; align-items: center; }
.user-avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
    margin-right: 0.75rem;
}
.user-details h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.25rem; }
.user-details p { font-size: 0.85rem; color: #94a3b8; }
.elo-display { font-size: 0.8rem; color: #94a3b8; margin-top: 0.25rem; }

@media (max-width: 768px) {
    .main-container { grid-template-columns: 1fr; gap: 2rem; max-width: 400px; }
    .hero-section { text-align: center; order: 2; }
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1.1rem; }
    .form-section { padding: 1.5rem; }
}

.loading { position: relative; overflow: hidden; }
.loading::after {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}