:root {
    --bg-color: #0d0f12;
    --panel-bg: rgba(20, 24, 30, 0.7);
    --panel-border: rgba(255, 255, 255, 0.1);
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --error: #ef4444;
    --success: #10b981;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Outfit', sans-serif;
}

body, html {
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow: hidden;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Use a cool subtle gradient or image if wanted */
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.15), transparent 40%),
                radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.05), transparent 40%);
    z-index: 1;
}

.container {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    0% { transform: translateY(30px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 8px;
    background: linear-gradient(to right, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-muted);
    font-size: 15px;
}

.section {
    display: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.section.active {
    display: block;
    opacity: 1;
}

/* Login Section */
#loginSection {
    text-align: center;
}
.description {
    color: var(--text-muted);
    margin-bottom: 25px;
    font-size: 15px;
}
.steam-btn {
    display: inline-block;
    transition: transform 0.2s ease, filter 0.2s ease;
}
.steam-btn:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
}

/* User Profile */
.user-profile {
    display: flex;
    align-items: center;
    background: rgba(0,0,0,0.2);
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 25px;
    border: 1px solid rgba(255,255,255,0.05);
}
.user-profile img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    margin-right: 15px;
    border: 2px solid var(--primary);
}
.user-profile div {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.user-name {
    font-weight: 600;
    font-size: 16px;
}
.steam-id {
    font-size: 12px;
    color: var(--text-muted);
}
.logout-btn {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 12px;
    border-radius: 6px;
    background: rgba(255,255,255,0.05);
    transition: all 0.2s;
}
.logout-btn:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

/* Form Styles */
.input-group-row {
    display: flex;
    gap: 15px;
}
.input-group {
    flex: 1;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}
.input-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.input-group input, .input-group select {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    padding: 12px 15px;
    color: white;
    font-size: 15px;
    outline: none;
    transition: all 0.3s ease;
}
.input-group input:focus, .input-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}
.input-group select option {
    background: #1e293b;
    color: white;
}

/* Button */
.submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
}
.submit-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.submit-btn:active {
    transform: translateY(0);
}

.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

.btn-loading .btn-text {
    display: none;
}
.btn-loading .spinner {
    display: block;
}

.message {
    margin-top: 15px;
    font-size: 14px;
    text-align: center;
    padding: 10px;
    border-radius: 8px;
    display: none;
}
.message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}
.message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    border: 1px solid rgba(239, 68, 68, 0.2);
}