:root {
    /* Dark Theme Variables */
    --bg-main: #09090b;
    --glass-bg: rgba(24, 24, 27, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-main: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;
    --logo-text: #ffffff;
    --btn-primary-bg: #3b82f6;
    --btn-primary-text: #ffffff;
    --btn-approve-bg: rgba(255, 255, 255, 0.1);
    --btn-approve-text: #ffffff;
    --btn-approve-border: rgba(255, 255, 255, 0.2);
    --btn-approve-hover: rgba(255, 255, 255, 0.2);
    --sidebar-border: rgba(255, 255, 255, 0.08);
    --bg-gradient-1: rgba(59, 130, 246, 0.05);
    --bg-gradient-2: rgba(56, 189, 248, 0.03);
    --privacy-bg: rgba(16, 185, 129, 0.1);
    --privacy-text: #10b981;
    --privacy-border: rgba(16, 185, 129, 0.2);
    --bottom-nav-bg: rgba(15, 15, 18, 0.9);
}

[data-theme="light"] {
    /* Light Theme Variables */
    --bg-main: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.06);
    --accent-main: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.05);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --logo-text: #0f172a;
    --btn-primary-bg: #3b82f6;
    --btn-primary-text: #ffffff;
    --btn-approve-bg: #ffffff;
    --btn-approve-text: #0f172a;
    --btn-approve-border: rgba(0, 0, 0, 0.15);
    --btn-approve-hover: #f1f5f9;
    --sidebar-border: rgba(0, 0, 0, 0.06);
    --bg-gradient-1: rgba(59, 130, 246, 0.02);
    --bg-gradient-2: rgba(56, 189, 248, 0.02);
    --privacy-bg: rgba(16, 185, 129, 0.08);
    --privacy-text: #059669;
    --privacy-border: rgba(16, 185, 129, 0.15);
    --bottom-nav-bg: rgba(248, 250, 252, 0.9);
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    height: 100vh;
    display: flex;
    overflow: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
    background-image: 
        radial-gradient(circle at 15% 50%, var(--bg-gradient-1), transparent 25%),
        radial-gradient(circle at 85% 30%, var(--bg-gradient-2), transparent 25%);
    padding-bottom: env(safe-area-inset-bottom);
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
    border-radius: 16px;
}

.app-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

.desktop-sidebar { display: none; }
.desktop-queue-sidebar { display: none; }

.app-container { flex: 1; display: flex; overflow: hidden; position: relative; }
.main-scroll-area { flex: 1; padding: 24px 20px; overflow-y: auto; display: flex; flex-direction: column; padding-bottom: 100px; }

/* Mobile Bottom Nav */
.bottom-nav-mobile {
    position: fixed;
    bottom: 0; left: 0; width: 100%;
    height: calc(65px + env(safe-area-inset-bottom));
    background: var(--bottom-nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--sidebar-border);
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav-inner { display: flex; justify-content: space-around; align-items: center; height: 65px; overflow-x: auto; }
.mobile-tab { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--text-muted); font-size: 10px; font-weight: 500; cursor: pointer; padding: 0 10px;}
.mobile-tab.active { color: var(--accent-main); }
.mobile-tab span.icon { font-size: 20px; }

/* Typography */
.header-area { margin-bottom: 24px; }
.page-title { font-size: 24px; font-weight: 400; margin: 0 0 4px 0; color: var(--logo-text);}
.date-subtitle { color: var(--accent-main); font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px;}
.section-header { font-size: 12px; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); margin-bottom: 12px; display: flex; justify-content: space-between; align-items: center;}
.badge { background: var(--accent-main); color: white; padding: 2px 8px; border-radius: 10px; font-weight: 600; font-size: 11px;}

/* Views */
.view-section { display: none; animation: fadeIn 0.3s ease; }
.view-section.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* Approval Queue Cards */
.staged-card { padding: 20px; margin-bottom: 16px; border-left: 3px solid var(--accent-main); position: relative; overflow: hidden; transition: all 0.3s ease; }
.card-type { font-size: 10px; color: var(--accent-main); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; font-weight: 700; }
.card-title { font-size: 15px; font-weight: 600; margin-bottom: 8px; color: var(--logo-text);}
.card-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; margin-bottom: 16px; }

/* Buttons */
.action-buttons { display: flex; gap: 8px; }
.btn { flex: 1; padding: 12px; border-radius: 8px; border: none; font-family: inherit; font-size: 13px; font-weight: 600; cursor: pointer; transition: background 0.2s; }
.btn-primary { background: var(--btn-primary-bg); color: var(--btn-primary-text); }
.btn-secondary { background: transparent; color: var(--text-main); border: 1px solid var(--glass-border); }
.btn-approve { background: var(--btn-approve-bg); color: var(--btn-approve-text); border: 1px solid var(--btn-approve-border); }
.btn-reject { background: transparent; color: var(--text-muted); border: 1px solid var(--glass-border); }

/* Library & Drill-ins */
.domain-group { margin-bottom: 24px; }
.capability-list { display: flex; flex-direction: column; gap: 8px; }
.cap-item { background: var(--glass-bg); padding: 16px; border-radius: 12px; border: 1px solid var(--glass-border); display: flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 500; cursor: pointer; transition: all 0.2s;}
.cap-item:active { transform: scale(0.98); }
.cap-icon { font-size: 18px; }

.back-btn { background: transparent; color: var(--accent-main); border: none; padding: 0; font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer; margin-bottom: 16px; display: flex; align-items: center; }

/* Ask Input */
.ask-input { width: 100%; height: 100px; background: transparent; border: none; color: var(--text-main); font-family: inherit; font-size: 16px; resize: none; box-sizing: border-box; }
.ask-input:focus { outline: none; }

/* Modal */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); display: none; align-items: center; justify-content: center; z-index: 200; padding: 20px; box-sizing: border-box; opacity: 0; transition: opacity 0.3s; }
.modal-overlay.active { display: flex; opacity: 1; }
.modal-content { width: 100%; max-width: 400px; padding: 24px; box-sizing: border-box; }

/* Desktop overrides (Adaptive Dual-Interface) */
@media (min-width: 1024px) {
    body { padding-bottom: 0; }
    
    .app-layout {
        display: grid;
        grid-template-columns: 240px 1fr 340px;
        height: 100vh;
    }

    .bottom-nav-mobile { display: none; }
    #mobile-queue-mount { display: none; }

    .desktop-sidebar {
        display: flex;
        flex-direction: column;
        background: var(--glass-bg);
        border-right: 1px solid var(--glass-border);
        padding: 32px 16px;
    }
    
    .sidebar-header { margin-bottom: 40px; padding: 0 12px; }
    .sidebar-header h2 { margin: 0; font-size: 20px; letter-spacing: 2px; color: var(--logo-text); font-weight: 700; }
    .sidebar-subtitle { font-size: 11px; text-transform: uppercase; color: var(--accent-main); font-weight: 600; margin-top: 4px; letter-spacing: 1px;}
    
    .sidebar-nav { display: flex; flex-direction: column; gap: 8px; }
    .nav-item { padding: 12px 16px; border-radius: 8px; cursor: pointer; color: var(--text-muted); font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 12px; transition: all 0.2s;}
    .nav-item:hover { background: var(--bg-gradient-1); color: var(--text-main); }
    .nav-item.active { background: var(--accent-glow); color: var(--accent-main); }
    .nav-item .icon { font-size: 18px; }

    .main-scroll-area { max-width: 800px; margin: 0 auto; padding: 40px; }

    .desktop-queue-sidebar {
        display: flex;
        flex-direction: column;
        background: var(--glass-bg);
        border-left: 1px solid var(--glass-border);
        padding: 32px 16px;
        overflow: hidden;
    }
    
    .queue-scroll {
        flex: 1;
        overflow-y: auto;
    }
}