/* --- THEME DEFINITIONS --- */
:root, .theme-dark {
    --bg: #0b0f1a;
    --bg-sidebar: #0f172a;
    --card: #161e2d;
    --card-hover: #1e293b;
    --border: #2d3748;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --primary: #3b82f6; 
    --primary-hover: #2563eb;
    --secondary: #334155;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    
    --font-base: 12px;
    --radius: 6px;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.3);
}

:root.theme-gaming, .theme-gaming {
    --bg: #050b14;
    --bg-sidebar: #02060d;
    --card: #0b1221;
    --card-hover: #111c30;
    --border: #0891b2; 
    --text: #e0f2fe;
    --text-muted: #67e8f9;
    --primary: #06b6d4; 
    --primary-hover: #0891b2;
    --secondary: #164e63;
    --danger: #e11d48;
    --success: #059669;
    --warning: #d97706;
    
    --radius: 0px; 
    --shadow: 0 0 10px rgba(6, 182, 212, 0.2);
}

/* Light Theme - Clean, Bright & Professional */
:root.theme-light, .theme-light {
    --bg: #f1f5f9;
    --bg-sidebar: #ffffff;
    --card: #ffffff;
    --card-hover: #f8fafc;
    --border: #cbd5e1;
    --text: #0f172a;
    --text-muted: #64748b;
    --primary: #0284c7; 
    --primary-hover: #0369a1;
    --secondary: #e2e8f0;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    
    --radius: 8px;
    --shadow: 0 4px 15px -3px rgba(0,0,0,0.08), 0 2px 6px -2px rgba(0,0,0,0.04);
}

/* --- BASE STYLES FOR INNER PAGES (IFRAMES) --- */
body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: var(--font-base);
    margin: 0;
    padding: 20px; 
    transition: background 0.3s, color 0.3s;
    overflow-x: hidden;
    overflow-y: auto; 
}

/* --- SHELL OVERRIDE (For index.php only) --- */
body.master-shell {
    padding: 0 !important;
    overflow: hidden !important; 
    width: 100vw;
    height: 100vh;
}

/* --- LAYOUT ARCHITECTURE --- */
.app-wrapper {
    width: 100vw;
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.sidebar {
    position: absolute;
    top: 0; bottom: 0; left: 0;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar::-webkit-scrollbar { width: 4px; display: none; }
.sidebar:hover::-webkit-scrollbar { display: block; }
.sidebar::-webkit-scrollbar-thumb { background: var(--card-hover); border-radius: 4px; }

.main-content {
    position: absolute;
    top: 0; right: 0; bottom: 0;
    background: var(--bg);
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.iframe-container { width: 100%; height: 100%; }
.iframe-container iframe { width: 100%; height: 100%; border: none; background: transparent; display: block; }

/* --- 3-STATE SIDEBAR MODES --- */

:root {
    /* Globally sets the width for the sidebar. Reduced from 220px to 190px */
    --sidebar-width: 190px;
    --sidebar-icon-width: 60px;
}

/* 1. Pinned Mode */
.sidebar-pinned .sidebar { width: var(--sidebar-width); transform: translateX(0); }
.sidebar-pinned .main-content { left: var(--sidebar-width); }

/* 2. Icon Mode */
.sidebar-icon .sidebar { width: var(--sidebar-icon-width); transform: translateX(0); }
.sidebar-icon .sidebar:hover { width: var(--sidebar-width); box-shadow: 10px 0 30px rgba(0,0,0,0.5); }
.sidebar-icon .main-content { left: var(--sidebar-icon-width); } 

/* Icon Mode Visual Hiding */
.sidebar-icon .sidebar:not(:hover) .logo-text,
.sidebar-icon .sidebar:not(:hover) .menu-text,
.sidebar-icon .sidebar:not(:hover) .menu-arrow { opacity: 0; pointer-events: none; display: none; }
.sidebar-icon .sidebar:not(:hover) .submenu { max-height: 0 !important; overflow: hidden; border: none; }
.sidebar-icon .sidebar:not(:hover) .logo-img { width: 32px; height: 32px; }
.sidebar-icon .sidebar:not(:hover) .logo-icon { width: 32px; height: 32px; font-size: 16px; margin: 0 auto; border-radius: 8px; }
.sidebar-icon .sidebar:not(:hover) .sidebar-header { justify-content: center; padding: 15px 5px; }
.sidebar-icon .sidebar:not(:hover) .mode-btn { display: none; }

/* 3. Hidden Mode (Auto-hide) */
.sidebar-hidden .sidebar { width: var(--sidebar-width); transform: translateX(-100%); }
.sidebar-hidden .sidebar.show-overlay { transform: translateX(0); box-shadow: 10px 0 50px rgba(0,0,0,0.8); }
.sidebar-hidden .main-content { left: 0; }

/* Floating Hamburger Trigger for Hidden Mode */
.floating-hamburger {
    position: fixed; top: 15px; left: 15px; z-index: 1000;
    background: var(--card); border: 1px solid var(--border); color: var(--primary);
    width: 36px; height: 36px; border-radius: 8px; display: none;
    align-items: center; justify-content: center; cursor: pointer;
    box-shadow: var(--shadow); transition: 0.2s;
}
.floating-hamburger:hover { background: var(--card-hover); color: white; transform: scale(1.05); }
.sidebar-hidden .floating-hamburger { display: flex; }

/* --- SIDEBAR INTERNALS --- */
.sidebar-header {
    position: relative;
    padding: 25px 15px 20px 15px; 
    display: flex; 
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border); 
    text-align: center;
}
.logo-img {
    width: 55px; 
    height: 55px; 
    object-fit: contain; 
    transition: all 0.3s ease;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3));
}
.logo-icon {
    width: 45px; height: 45px; background: var(--primary); border-radius: 10px;
    display: flex; justify-content: center; align-items: center;
    font-weight: 900; font-size: 22px; color: #fff; flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}
.logo-text { 
    margin-top: 12px; 
    font-size: 13px; 
    font-weight: 800; 
    letter-spacing: 0.5px; 
    color: var(--text); 
    line-height: 1.4; 
    white-space: normal; 
    word-wrap: break-word;
    width: 100%;
    transition: opacity 0.2s; 
}
.mode-btn {
    position: absolute;
    top: 8px; right: 8px;
    background: none; border: none; color: var(--text-muted);
    cursor: pointer; padding: 4px; display: flex; align-items: center; justify-content: center;
    border-radius: 4px; transition: 0.2s; outline: none;
}
.mode-btn:hover { color: var(--primary); background: rgba(255,255,255,0.05); }

/* Menus */
.menu-container { padding: 15px 0; flex-grow: 1; }
.menu-item {
    padding: 12px 15px; display: flex; align-items: center; color: var(--text-muted);
    text-decoration: none; cursor: pointer; transition: background 0.2s, color 0.2s;
    white-space: nowrap; border-left: 3px solid transparent;
}
.menu-item:hover { background: rgba(255,255,255,0.02); color: var(--text); }
.menu-item.active { background: rgba(59, 130, 246, 0.05); color: var(--primary); border-left: 3px solid var(--primary); font-weight: 600; }
.menu-icon { width: 24px; display: flex; justify-content: center; align-items: center; flex-shrink: 0; }
.menu-icon svg { width: 16px; height: 16px; stroke-width: 2; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; }

/* Tightened gap between icon and text from 12px to 10px */
.menu-text { margin-left: 10px; font-size: 12px; transition: opacity 0.2s; }
.menu-arrow { margin-left: auto; font-size: 10px; transition: transform 0.2s; opacity: 0.5; }
.menu-item.open .menu-arrow { transform: rotate(180deg); opacity: 1; }

/* Submenu */
.submenu { background: rgba(0,0,0,0.2); max-height: 0; overflow: hidden; transition: max-height 0.3s ease-in-out; border-left: 1px solid var(--border); margin-left: 26px; }
.submenu a {
    display: block; padding: 10px 15px 10px 20px; color: var(--text-muted);
    text-decoration: none; font-size: 11px; white-space: nowrap; transition: 0.2s;
}
.submenu a:hover { color: var(--text); background: rgba(255,255,255,0.02); }
.submenu a.active { color: var(--primary); font-weight: 600; }

/* --- GENERIC COMPONENTS --- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 15px; margin-bottom: 15px; box-shadow: var(--shadow); }
.btn { padding: 6px 14px; border-radius: var(--radius); border: 1px solid transparent; font-weight: bold; cursor: pointer; color: white; text-decoration: none; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; transition: all 0.2s ease; display: inline-flex; align-items: center; justify-content: center; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 0 8px var(--primary-hover); }
.btn-secondary { background: var(--secondary); border-color: var(--border); color: var(--text-muted); }
.btn-secondary:hover { background: var(--card-hover); color: var(--text); }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-warning { background: var(--warning); color: #000; border-color: var(--warning); }