/* Modern Website Design System */
:root {
    --bg-main: #0f172a;      
    --bg-nav: #1e293b;       
    --bg-panel: #1e293b;     
    --bg-input: #0b0f19;     
    --text-main: #f8fafc;    
    --text-muted: #94a3b8;   
    --border-color: #334155; 
    --accent: #0ea5e9;       
    --accent-hover: #0284c7; 
    --success: #10b981;      
    --warning: #fbbf24;
    --danger: #ef4444;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ================= LOGIN SECTION ================= */
.login-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: var(--bg-main);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    z-index: 1000;
}
.login-box {
    background: var(--bg-panel);
    padding: 40px; border-radius: 12px; border: 1px solid var(--border-color);
    text-align: center; box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    width: 90%; max-width: 400px;
}
.login-box h2 { color: #38bdf8; margin-top: 0; margin-bottom: 10px; font-weight: 700; letter-spacing: 1px;}
.login-input {
    width: 100%; padding: 14px; margin: 20px 0;
    background: var(--bg-input); color: #fff;
    border: 1px solid var(--border-color); border-radius: 6px;
    box-sizing: border-box; font-family: 'Inter', sans-serif; font-size: 15px;
}
.login-input:focus { border-color: var(--accent); outline: none; }
.login-btn {
    background-color: var(--accent); color: #fff; border: none; padding: 12px; 
    font-weight: 600; font-size: 15px; border-radius: 6px; cursor: pointer; width: 100%; transition: 0.2s;
}
.login-btn:hover { background-color: var(--accent-hover); }

/* ================= MAIN APP ================= */
#mainApp {
    display: none; /* Hidden until login */
    flex-direction: column;
    flex: 1;
}

/* Navigation Bar */
.navbar {
    background-color: var(--bg-nav);
    padding: 16px 40px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    flex-wrap: wrap;
    gap: 15px;
}

.navbar h1 {
    margin: 0; font-size: 22px; color: #38bdf8; font-weight: 700;
    display: flex; align-items: center; gap: 10px;
}
.badge {
    background: rgba(14, 165, 233, 0.2); color: #38bdf8;
    padding: 4px 8px; border-radius: 4px; font-size: 12px; font-weight: 600;
}

/* Main Workspace */
.workspace {
    flex: 1; padding: 30px 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 25px;
}

@media (max-width: 900px) {
    .workspace { grid-template-columns: 1fr; padding: 20px; }
    .navbar { padding: 16px 20px; }
}

/* Panels */
.panel {
    background-color: var(--bg-panel); border: 1px solid var(--border-color);
    border-radius: 10px; display: flex; flex-direction: column; overflow: hidden;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.panel-header {
    padding: 15px 20px; border-bottom: 1px solid var(--border-color);
    display: flex; justify-content: space-between; align-items: center;
    background-color: rgba(0,0,0,0.2); font-size: 15px; font-weight: 600; flex-wrap: wrap; gap: 10px;
}

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.method-selector {
    background-color: var(--bg-input); color: var(--text-main);
    border: 1px solid var(--border-color); padding: 8px 12px;
    border-radius: 6px; font-size: 14px; font-weight: 500; outline: none; cursor: pointer;
}
.method-selector:focus { border-color: var(--accent); }

textarea {
    width: 100%; height: 500px; background-color: var(--bg-input); color: #a6e22e; 
    border: none; padding: 20px; font-family: 'Consolas', 'Courier New', monospace;
    font-size: 14px; resize: none; outline: none; box-sizing: border-box; line-height: 1.5;
}

/* Buttons */
button, .file-upload-label {
    background-color: var(--accent); color: #fff; border: none; padding: 8px 16px;
    font-size: 13px; font-weight: 600; border-radius: 6px; cursor: pointer;
    transition: all 0.2s ease; display: inline-flex; align-items: center; justify-content: center; gap: 6px;
}
button:hover, .file-upload-label:hover { background-color: var(--accent-hover); transform: translateY(-1px); }

input[type="file"] { display: none; }

.btn-outline { background-color: transparent; color: var(--text-main); border: 1px solid var(--border-color); }
.btn-outline:hover { background-color: var(--border-color); }
.btn-success { background-color: var(--success); color: #fff; }
.btn-success:hover { background-color: #059669; }
.btn-danger { background-color: transparent; color: #f87171; border: 1px solid #ef4444; }
.btn-danger:hover { background-color: #ef4444; color: #fff; }

.developer-btn {
    background: linear-gradient(135deg, #0ea5e9, #3b82f6);
    width: 100%; max-width: 600px; margin: 0 auto 30px auto; display: block;
    padding: 15px; font-size: 16px; text-transform: uppercase; letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.4);
}

.hidden-iframes { display: none; }

/* Firebase specific inputs */
.fb-input-group { margin-bottom: 15px; padding: 0 20px;}
.fb-label { display: block; font-size: 13px; color: var(--text-muted); margin-bottom: 5px; margin-top: 15px; }