:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-sidebar: #020617;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #8b5cf6;
    /* A clear purple */
    --secondary: #3b82f6;
    /* Blue */
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden;
    /* App-like feel */
}

/* Layout */
.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 3rem;
    color: var(--primary);
}

.nav-links {
    list-style: none;
    flex-grow: 1;
}

.nav-links li {
    padding: 1rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
}

.nav-links li:hover,
.nav-links li.active {
    background: rgba(139, 92, 246, 0.15);
    color: var(--primary);
}

.nav-links li i {
    width: 20px;
    text-align: center;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.info {
    display: flex;
    flex-direction: column;
}

.name {
    font-weight: 600;
    font-size: 0.9rem;
}

.status {
    font-size: 0.75rem;
    color: var(--success);
}

/* Main Content */
.main-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 2rem;
    position: relative;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

h1 {
    font-weight: 600;
}

/* Buttons */
button {
    cursor: pointer;
    border: none;
    font-family: inherit;
    border-radius: 8px;
    padding: 0.6rem 1.2rem;
    font-weight: 500;
    transition: 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Sections */
.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dashboard Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.icon-box {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.icon-box.purple {
    background: rgba(139, 92, 246, 0.2);
    color: var(--primary);
}

.icon-box.blue {
    background: rgba(59, 130, 246, 0.2);
    color: var(--secondary);
}

.icon-box.green {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.icon-box.orange {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 4px;
}

.stat-info .value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.trend {
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.trend.up {
    color: var(--success);
}

.trend.down {
    color: var(--danger);
}

/* Charts */
.charts-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-container {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.chart-header select {
    background: var(--bg-dark);
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 6px;
}

/* AI Insight */
.ai-insight-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    padding: 1.5rem;
    border-radius: 16px;
}

.ai-header {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
    color: var(--primary);
}

/* Analysis Page */
.analysis-tabs {
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.sub-tab {
    background: none;
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.sub-tab.active {
    background: var(--bg-card);
    color: var(--text-main);
    font-weight: 600;
}

.analysis-view {
    display: none;
}

.analysis-view.active {
    display: block;
}

.sw-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.sw-box {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 16px;
}

.sw-box.strength h3 {
    color: var(--success);
}

.sw-box.weakness h3 {
    color: var(--danger);
}

.sw-box ul {
    list-style: none;
    margin-top: 1rem;
}

.sw-box li {
    padding: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
}

.sw-box li:last-child {
    border: none;
}

.topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.topic-card {
    background: var(--bg-card);
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
}

.progress-bar-bg {
    background: rgba(255, 255, 255, 0.1);
    height: 6px;
    border-radius: 3px;
    margin-top: 10px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    border-radius: 3px;
}

/* Upload */
.upload-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.file-upload-area {
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    text-align: center;
    transition: 0.2s;
    background: var(--bg-card);
}

.file-upload-area:hover {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.05);
}

.file-upload-area i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.template-download {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
}

/* Study Plan */
.plan-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
}

.plan-column {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.5rem;
    min-height: 400px;
}

.col-title {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.col-title.red {
    color: var(--danger);
}

.col-title.orange {
    color: var(--warning);
}

.col-title.green {
    color: var(--success);
}

.task-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-left: 3px solid transparent;
}

.task-card.priority-high {
    border-left-color: var(--danger);
}

.task-card.priority-med {
    border-left-color: var(--warning);
}

.task-card.priority-low {
    border-left-color: var(--success);
}

/* Mental */
.mental-container {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.mood-icons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.mood-btn {
    font-size: 2.5rem;
    background: var(--bg-card);
    border-radius: 50%;
    width: 70px;
    height: 70px;
    transition: 0.2s;
}

.mood-btn:hover {
    transform: scale(1.1);
    background: var(--primary);
}

/* Generator */
.generator-controls {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 16px;
    margin-bottom: 2rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex-grow: 1;
}

.control-group label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.control-group select,
.control-group input {
    background: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 10px;
    border-radius: 8px;
}

.test-output {
    margin-top: 2rem;
}


/* Responsive */
@media (max-width: 1024px) {
    .charts-row {
        grid-template-columns: 1fr;
    }

    .upload-container,
    .sw-container,
    .plan-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile Toggle - Default Hidden */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    background: none;
    color: var(--text-main);
    border: none;
    cursor: pointer;
    padding: 0;
    margin-right: 15px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    backdrop-filter: blur(2px);
    opacity: 0;
    transition: opacity 0.3s;
}

.sidebar-overlay.active {
    display: block;
    opacity: 1;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .app-container {
        position: relative;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        padding: 1rem;
        width: 100%;
    }

    .top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

    .top-bar > div:first-child {
        display: flex;
        align-items: center;
        width: 100%;
    }

    #page-title {
        font-size: 1.5rem;
    }

    .top-bar .actions {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .top-bar .actions button {
        justify-content: center;
        width: 100%;
        padding: 0.8rem;
        font-size: 0.9rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .stat-card {
        padding: 1.2rem;
    }

    .analysis-tabs {
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 5px;
    }

    /* Finance Form Mobile */
    #transaction-form .row {
        flex-direction: column;
        gap: 1rem !important;
    }
    
    .mood-icons {
        gap: 0.5rem;
    }
    
    .mood-btn {
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
    }
}

@media print {
    @page {
        size: landscape;
        margin: 1cm;
    }

    body {
        background: white;
        color: black;
        overflow: visible;
    }

    .sidebar,
    .top-bar .actions,
    .nav-links,
    .user-profile,
    .floating-action,
    #transaction-form,
    .btn-primary,
    .btn-secondary,
    .mood-tracker-header button,
    .upload-container,
    .generator-controls,
    .menu-toggle, 
    .sidebar-overlay {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
        padding: 0;
        width: 100%;
        overflow: visible;
    }

    .card,
    .stat-card,
    .chart-container,
    .settings-card,
    .day-card,
    .weekly-table-container,
    .plan-column {
        background: white !important;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
        color: black !important;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .stat-card .value {
        color: black !important;
    }

    h1,
    h2,
    h3,
    h4,
    th,
    td,
    strong,
    b,
    span,
    p,
    div {
        color: black !important;
    }

    .excel-table th {
        background: #f0f0f0 !important;
        color: black !important;
        font-weight: bold;
    }

    #weekly-plan-table td,
    #weekly-plan-table th {
        border: 1px solid #000 !important;
    }

    /* Ensure charts are visible */
    canvas {
        max-width: 100%;
        max-height: 400px;
    }

    /* Hide specific sections if needed */
    #upload,
    #settings {
        display: none;
    }
}

/* Print Plan Specific Overrides */
body.printing-plan .sidebar,
body.printing-plan .top-bar,
body.printing-plan .tab-content:not(#study-plan) {
    display: none !important;
}

body.printing-plan #study-plan>*:not(.weekly-plan-container) {
    display: none !important;
}

body.printing-plan .plan-header button,
body.printing-plan .plan-header select {
    display: none !important;
}

body.printing-plan .weekly-plan-container {
    border: none;
    margin: 0;
    padding: 0;
}