:root {
    /* --- DARK MODE (Default) --- */
    --bg-main: #050505;
    --bg-panel: #0a0a0a;
    --border-color: #222;
    --slot-bg: #111;
    --input-bg: #111;
    --tag-bg: #151515;
    
    --text-primary: #fff;
    --text-secondary: #888;
    --text-muted: #666;
    
    --accent-blue: #3b82f6;
    --accent-green: #22c55e;
    --accent-red: #ef4444;
    
    --gradient-body: none; /* No gradient in dark mode */
}

/* --- LIGHT MODE (Pink Gradient) --- */
:root[data-theme="light"] {
    --bg-main: #fce7f3; /* Fallback */
    --gradient-body: linear-gradient(135deg, #fff1f2 0%, #fce7f3 50%, #fbcfe8 100%);
    
    --bg-panel: #ffffff;
    --border-color: #f9a8d4; /* Soft Pink Border */
    --slot-bg: #fff0f5; /* Lavender Blush */
    --input-bg: #ffffff;
    --tag-bg: #ffe4e6;
    
    --text-primary: #4a042e; /* Dark Maroon (High Contrast) */
    --text-secondary: #831843; /* Dark Pink */
    --text-muted: #be185d;
    
    --accent-blue: #db2777; /* Hot Pink */
    --accent-green: #059669; /* Darker Green for contrast */
    --accent-red: #dc2626;
}

* { box-sizing: border-box; }

body {
    background-color: var(--bg-main);
    background-image: var(--gradient-body);
    background-attachment: fixed; /* Keeps gradient full screen */
    color: var(--text-primary);
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0; min-height: 100vh; display: flex; flex-direction: column;
    transition: background 0.3s, color 0.3s;
}

/* --- HEADER & NAV --- */
.site-header {
    background-color: var(--bg-panel); 
    border-bottom: 1px solid var(--border-color);
    padding: 15px 30px; 
    display: flex; justify-content: space-between; align-items: center;
    transition: background-color 0.3s, border-color 0.3s;
}

.header-left { display: flex; align-items: center; gap: 25px; }
.site-logo { height: 40px; width: auto; display: block; }

.nav-links { display: flex; gap: 20px; }
.nav-link { background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 15px; transition: 0.2s; font-weight: 600; }
.nav-link.active, .nav-link:hover { color: var(--accent-blue); }

.header-right { display: flex; align-items: center; gap: 15px; }

.icon-link, .icon-btn {
    background: none; border: none; color: var(--text-secondary);
    font-size: 20px; cursor: pointer; padding: 5px; display: flex; align-items: center; transition: 0.2s;
    text-decoration: none;
}
.icon-link:hover, .icon-btn:hover { color: var(--text-primary); transform: scale(1.1); }
.discord-icon:hover { color: #5865F2; }

.user-avatar { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--border-color); object-fit: cover; }
#user-info { display: flex; align-items: center; gap: 10px; }
#header-username { font-size: 14px; font-weight: bold; color: var(--text-primary); }

.logout-btn { background: none; border: 1px solid var(--border-color); color: var(--text-secondary); padding: 5px 10px; border-radius: 5px; cursor: pointer; font-size: 12px; }
.logout-btn:hover { border-color: var(--text-primary); color: var(--text-primary); }
.login-btn { background: var(--accent-green); border: none; color: white; padding: 8px 16px; border-radius: 5px; cursor: pointer; font-weight: bold; }
.login-btn:hover { opacity: 0.9; }

main { max-width: 1200px; margin: 40px auto; width: 95%; }
.section { display: none; }
.section.active { display: block; }

/* --- CALCULATOR --- */
.calculator-container { background-color: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 20px; padding: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.calc-header { display: grid; grid-template-columns: 100px 1fr 100px; align-items: center; margin-bottom: 10px; }
.total-display { font-size: 32px; font-weight: 800; white-space: nowrap; color: var(--text-primary); }
.wfl-container { display: flex; flex-direction: column; align-items: center; padding: 0 20px; }
.wfl-labels { display: flex; gap: 15px; font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; }
.progress-track { width: 100%; height: 6px; background: var(--border-color); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; width: 50%; background: var(--text-secondary); transition: width 0.4s; }

.calc-body { display: flex; justify-content: space-between; margin-top: 30px; }
.side-panel { width: 350px; }
.panel-label { text-align: center; font-size: 18px; font-weight: 700; margin-bottom: 15px; color: var(--text-primary); }
.grid-3x3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; }

/* Slot Styling */
.slot { 
    aspect-ratio: 1/1; 
    background-color: var(--slot-bg); 
    border: 1px solid var(--border-color); 
    border-radius: 6px; 
    cursor: pointer; position: relative; display: flex; justify-content: center; align-items: center;
}
.slot:hover { border-color: var(--text-secondary); }

.slot-content { width: 100%; height: 100%; display: flex; justify-content: center; align-items: center; padding: 5px; }
.slot-img { max-width: 85%; max-height: 85%; object-fit: contain; display: block; margin: auto; }

.slot-controls { 
    position: absolute; bottom: 5px; left: 50%; transform: translateX(-50%); 
    display: flex; background: rgba(0,0,0,0.8); border: 1px solid #555; 
    border-radius: 20px; padding: 2px 10px; gap: 10px; z-index: 10; 
}
.ctrl-btn { color: white; font-weight: 900; background: none; border: none; cursor: pointer; width: 20px; display: flex; justify-content: center; }
.ctrl-qty { font-size: 13px; font-weight: 700; color: #ddd; min-width: 15px; text-align: center; }

.center-status { flex: 1; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.result-value { font-size: 42px; font-weight: 900; }
.result-label { font-size: 24px; font-weight: 700; text-transform: uppercase; margin-bottom: 20px; }
.reset-btn { background: var(--input-bg); color: var(--text-primary); border: 1px solid var(--border-color); padding: 8px 24px; border-radius: 6px; cursor: pointer; }

.calc-footer { display: flex; justify-content: flex-end; align-items: center; margin-top: 20px; gap: 10px; }
.mode-switch { background: var(--input-bg); border: 1px solid var(--border-color); border-radius: 20px; display: flex; padding: 2px; cursor: pointer; }
.mode-switch.small { transform: scale(0.9); }
.mode-opt { padding: 4px 16px; border-radius: 16px; color: var(--text-secondary); transition: 0.2s; font-size: 13px; font-weight: 700; }
.mode-opt.active { background: var(--text-primary); color: var(--bg-panel); }

/* --- TRADES FEED (UPDATED LAYOUT) --- */
.trade-toolbar { 
    display: flex; justify-content: space-between; align-items: center; 
    background: var(--bg-panel); padding: 20px; border-radius: 12px; 
    border: 1px solid var(--border-color); margin-bottom: 30px; 
}

.post-ad-btn { 
    background: var(--accent-blue); color: white; border: none; 
    padding: 12px 24px; border-radius: 8px; font-weight: 700; 
    cursor: pointer; display: flex; align-items: center; gap: 10px; font-size: 16px; 
}
.post-ad-btn:disabled { background: var(--text-secondary); cursor: not-allowed; }

.trade-card { 
    background: var(--bg-panel); border: 1px solid var(--border-color); 
    border-radius: 12px; margin-bottom: 20px; overflow: hidden; 
}

.trade-card-header { 
    padding: 15px 25px; border-bottom: 1px solid var(--border-color); 
    display: flex; justify-content: space-between; 
    color: var(--text-secondary); font-size: 15px; font-weight: 600; 
}

.trade-card-body { 
    display: flex; align-items: flex-start; padding: 25px; gap: 30px; 
}

.trade-side { 
    flex: 1; display: flex; flex-direction: column; gap: 15px; 
}

/* Centered Arrows */
.trade-divider { 
    font-size: 32px; color: var(--text-secondary); 
    align-self: center; margin-top: 30px; 
}

.trade-grid-small { 
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; justify-content: center; 
}

/* Headers & Totals */
.side-header { 
    text-align: center; font-size: 16px; font-weight: 800; 
    color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1.5px; 
    margin-bottom: 5px;
}

.side-total { 
    text-align: center; 
    font-size: 20px; 
    font-weight: 900; 
    color: var(--accent-blue); 
    margin-top: 0; 
    margin-bottom: 10px; /* Space between value and items */
}

/* --- BIGGER ITEM CARDS --- */
.mini-slot { 
    background: var(--bg-panel); 
    border: 1px solid var(--border-color); 
    border-radius: 10px; 
    padding: 10px; 
    display: flex; flex-direction: column; align-items: center; 
    position: relative; 
    min-height: 150px; /* Much Taller */
}

/* Bigger Images */
.mini-slot img { 
    width: 85px; height: 85px; /* Much Bigger */
    object-fit: contain; 
    margin-top: 15px; 
}

/* Bigger Text */
.mini-slot .item-name { 
    font-size: 13px; /* Larger Font */
    color: var(--text-primary); 
    margin-top: 8px; 
    text-align: center; 
    width: 100%; 
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; 
    font-weight: 700; 
}

/* Bigger Value Badge */
.mini-slot .value-badge { 
    font-size: 13px; /* Larger Font */
    padding: 4px 10px; 
    margin-top: auto; width: 100%; 
    color: var(--accent-green); 
    background: rgba(34, 197, 94, 0.1); /* Subtle green background */
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 6px;
    font-weight: 800; 
    text-align: center; 
}

/* Corner Icons */
.mini-slot .status-icon { 
    position: absolute; top: 8px; left: 8px; font-size: 14px; 
    color: var(--text-primary); 
}
.mini-slot .demand-badge { 
    position: absolute; top: 8px; right: 8px; 
    font-size: 11px; padding: 2px 6px; 
    background: rgba(0,0,0,0.8); color: white; border-radius: 4px; font-weight: bold;
}

/* Upgrade/Any Tags */
.generic-tag { 
    background: var(--tag-bg); 
    color: var(--text-secondary); 
    border-radius: 10px; border: 2px dashed var(--border-color); 
    margin-top: 0; 
    display: flex; justify-content: center; align-items: center; 
    min-height: 150px; /* Match mini-slot height */
    height: 100%;
    font-weight: 800; font-size: 20px; text-transform: uppercase; letter-spacing: 2px;
}

.trade-card-footer { 
    background: var(--slot-bg); padding: 12px 25px; 
    border-top: 1px solid var(--border-color); 
    display: flex; align-items: center; gap: 10px; 
    color: var(--text-secondary); font-size: 14px; font-weight: 600;
}

/* --- VALUES PAGE --- */
.full-height-container { height: 80vh; display: flex; flex-direction: column; padding: 0; }
.values-toolbar { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; background: var(--bg-panel); border-radius: 20px 20px 0 0; }
.search-bar { background: var(--input-bg); border: 1px solid var(--border-color); padding: 10px 15px; border-radius: 8px; color: var(--text-primary); width: 300px; }
.search-bar::placeholder { color: var(--text-muted); }
.controls-right { display: flex; gap: 15px; align-items: center; }
.sort-select { background: var(--input-bg); border: 1px solid var(--border-color); color: var(--text-primary); padding: 8px 12px; border-radius: 8px; cursor: pointer; outline: none; }

.values-content { display: flex; flex: 1; overflow: hidden; }
.sidebar { width: 200px; padding: 20px; border-right: 1px solid var(--border-color); background: var(--bg-panel); display: flex; flex-direction: column; gap: 5px; }
.filter-btn { background: transparent; border: 1px solid transparent; color: var(--text-secondary); padding: 10px; text-align: left; cursor: pointer; border-radius: 6px; font-weight: 600; }
.filter-btn:hover { background: var(--slot-bg); color: var(--text-primary); }
.filter-btn.active { background: var(--border-color); color: var(--text-primary); }

.values-grid { flex: 1; padding: 20px; overflow-y: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 15px; align-content: start; background: transparent; }

.value-card { background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 10px; padding: 10px; display: flex; flex-direction: column; align-items: center; position: relative; transition: 0.2s; }
.value-card:hover { border-color: var(--text-secondary); transform: translateY(-2px); }
.status-icon { position: absolute; top: 8px; left: 8px; font-size: 14px; }
.status-up { color: var(--accent-green); }
.status-down { color: var(--accent-red); }
.status-flat { color: var(--text-muted); }
.demand-badge { position: absolute; top: 8px; right: 8px; font-size: 11px; font-weight: 700; color: white; background: rgba(0,0,0,0.5); padding: 2px 6px; border-radius: 4px; }
.value-badge { background: var(--slot-bg); color: var(--accent-green); padding: 4px 10px; border-radius: 6px; font-size: 13px; font-weight: 800; margin-top: 8px; border: 1px solid var(--border-color); width: 100%; text-align: center; }

/* --- MODALS --- */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.85); display: none; justify-content: center; align-items: center; z-index: 2000; }

#post-ad-modal { z-index: 2500; }
.post-modal-box { background: var(--bg-panel); width: 700px; border-radius: 12px; border: 1px solid var(--border-color); display: flex; flex-direction: column; max-height: 90vh; }
.post-modal-body { padding: 20px; overflow-y: auto; color: var(--text-primary); }
.post-section { margin-bottom: 25px; }
.grid-2x2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; width: 200px; }
.tag-toggles { display: flex; gap: 10px; margin-bottom: 15px; }
.tag-btn { background: var(--slot-bg); border: 1px solid var(--border-color); color: var(--text-secondary); padding: 8px 16px; border-radius: 20px; cursor: pointer; font-size: 13px; flex: 1; }
.tag-btn.active { background: var(--accent-blue); color: white; border-color: var(--accent-blue); }
.discord-input { width: 100%; background: var(--input-bg); border: 1px solid var(--border-color); padding: 12px; border-radius: 8px; color: var(--text-primary); outline: none; }
.submit-ad-btn { width: 100%; background: var(--accent-blue); color: white; border: none; padding: 15px; border-radius: 8px; font-weight: 700; cursor: pointer; font-size: 18px; }
.draft-total { font-size: 14px; font-weight: 700; color: var(--accent-green); margin-top: 5px; text-align: right; display: block; }

#modal { z-index: 3000; } 
.modal-box { background: var(--bg-panel); width: 95%; max-width: 1200px; height: 90vh; border-radius: 12px; border: 1px solid var(--border-color); display: flex; flex-direction: column; overflow: hidden; }
.modal-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; flex-direction: column; gap: 15px; width: 100%; flex-shrink: 0; color: var(--text-primary); }
.modal-top-row { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.modal-search { width: 100%; box-sizing: border-box; background: var(--input-bg); border: 1px solid var(--border-color); padding: 12px 15px; border-radius: 8px; color: var(--text-primary); font-size: 16px; outline: none; }

.modal-body-flex { display: flex; flex: 1; overflow: hidden; }
.modal-sidebar { width: 180px; background: var(--bg-panel); border-right: 1px solid var(--border-color); padding: 15px; display: flex; flex-direction: column; gap: 8px; overflow-y: auto; }
.modal-filter-btn { background: transparent; border: 1px solid transparent; color: var(--text-secondary); padding: 10px; text-align: left; cursor: pointer; border-radius: 8px; font-weight: 700; font-size: 14px; }
.modal-filter-btn:hover { background: var(--slot-bg); color: var(--text-primary); }
.modal-filter-btn.active { background: var(--border-color); border-color: var(--border-color); color: var(--text-primary); }

.modal-filter-btn.legendary { color: #ffcc00; }
.modal-filter-btn.epic { color: #a335ee; }
.modal-filter-btn.rare { color: #3b82f6; }
.modal-filter-btn.common { color: #9ca3af; }

.modal-grid { flex: 1; padding: 20px; overflow-y: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 15px; align-content: start; }
.modal-item { background: var(--slot-bg); padding: 15px; border-radius: 12px; text-align: center; cursor: pointer; border: 1px solid var(--border-color); position: relative; }
.modal-item:hover { border-color: var(--text-secondary); transform: translateY(-2px); }
.modal-item img { width: 80px; height: 80px; object-fit: contain; }
.modal-item-name { font-size: 13px; margin-top: 10px; color: var(--text-primary); font-weight: 600; }
.modal-demand-badge { position: absolute; top: 8px; right: 8px; background: rgba(0,0,0,0.6); color: white; font-size: 11px; font-weight: 700; padding: 2px 6px; border-radius: 4px; }

/* Auth */
#auth-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--bg-main); z-index: 4000; display: none; flex-direction: column; align-items: center; justify-content: center; }
.auth-box { background: var(--bg-panel); border: 1px solid var(--border-color); padding: 40px; border-radius: 12px; text-align: center; width: 400px; color: var(--text-primary); }
.action-btn { background: var(--accent-green); color: white; padding: 10px 20px; border-radius: 5px; border: none; cursor: pointer; font-size: 1rem; margin-top: 20px; font-weight: bold; }
.phrase-box { background: black; padding: 15px; border: 1px dashed #444; color: #22c55e; margin: 20px 0; font-family: monospace; font-size: 18px; }

/* --- GUIDE SECTION --- */
.guide-container { background: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 20px; padding: 40px; max-width: 1000px; margin: 0 auto; color: var(--text-primary); }
.guide-container h1 { text-align: center; margin-bottom: 40px; font-size: 2.5rem; background: linear-gradient(to right, #3b82f6, #22c55e); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.guide-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.guide-card { background: var(--bg-main); border: 1px solid var(--border-color); border-radius: 12px; padding: 25px; transition: 0.3s; }
.guide-card:hover { border-color: var(--accent-blue); transform: translateY(-5px); }
.guide-card h3 { margin-top: 0; display: flex; align-items: center; gap: 10px; color: var(--text-primary); border-bottom: 1px solid var(--border-color); padding-bottom: 10px; }
.guide-card h3 i { color: var(--accent-blue); }
.guide-list { list-style: none; padding: 0; margin-top: 15px; }
.guide-list li { margin-bottom: 12px; font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 10px; }
.guide-list li strong { color: var(--text-primary); }