:root {
    --bg: #0c0a09;
    --surface-1: rgba(28, 25, 23, 0.6);
    --surface-2: rgba(40, 37, 35, 0.7);
    --glass: rgba(252, 252, 250, 0.04);
    --border-color: rgba(252, 252, 250, 0.15);
    
    --text-primary: #fafaf9;
    --text-secondary: #a8a29e;
    --text-interactive: #0c0a09;

    --accent-primary: #f59e0b;
    --accent-secondary: #f97316;
    --accent-tertiary: #eab308;
    --accent-primary-alpha: rgba(245, 158, 11, 0.1);

    --danger: #ef4444;
    --success: #10b981;

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 3rem;

    --radius: 12px;
    --radius-sm: 8px;
    --radius-full: 9999px;

    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 25px 60px -12px rgba(0, 0, 0, 0.6);
    --glow: 0 0 0 4px var(--accent-primary-alpha);

    --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}


* {
    box-sizing: border-box;
    font-family: var(--font-sans);
    -webkit-tap-highlight-color: transparent;
}

html {
    background-color: var(--bg);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
}

body {
    font-size: var(--font-size-base);
    line-height: 1.6;
    padding: 0;
    margin: 0;
    overflow-x: hidden;
}


::-webkit-scrollbar {
    display: none;
}
body {
    -ms-overflow-style: none;  
    scrollbar-width: none;  
}

.aurora-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}
.aurora-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
}
.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-primary);
    top: -150px;
    left: -150px;
    animation: move 20s infinite alternate;
}
.shape-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-secondary);
    bottom: -200px;
    right: -200px;
    animation: move 25s infinite alternate-reverse;
}
.shape-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-tertiary);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: move 15s infinite;
}
@keyframes move {
    from { transform: translate(0, 0) rotate(0deg); }
    to { transform: translate(100px, 50px) rotate(30deg); }
}



.app-shell {
    width: 100%;
    min-height: 100vh;
    margin: 0 auto;
    padding: clamp(1rem, 4vw, 2rem);
}

.login-shell {
    max-width: 480px;
    margin: 10vh auto;
    padding: clamp(1.5rem, 4vw, 3rem);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: var(--surface-1);
    backdrop-filter: blur(50px) saturate(180%);
    -webkit-backdrop-filter: blur(50px) saturate(180%);
    box-shadow: var(--shadow-lg);
}

main {
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    margin: 0;
    font-size: clamp(2rem, 8vw, var(--font-size-xl));
    font-weight: 700;
    letter-spacing: -0.05em;
}



.card {
    border-radius: var(--radius);
    padding: clamp(1rem, 4vw, 2rem);
    background: var(--surface-1);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(50px) saturate(180%);
    -webkit-backdrop-filter: blur(50px) saturate(180%);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.section-header h2 {
    margin: 0;
    font-size: clamp(1.25rem, 5vw, var(--font-size-lg));
    font-weight: 600;
}
.header-actions {
    display: flex;
    gap: 0.5rem;
}


button {
    border: none;
    cursor: pointer;
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: 0.8rem 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
    position: relative;
}
button:focus-visible {
    outline: none;
    box-shadow: var(--glow);
}
button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
    filter: none !important;
}
button:hover:not(:disabled) {
    transform: translateY(-2px) scale(1.01);
}

.primary {
    background: var(--accent-primary);
    color: var(--text-interactive);
    box-shadow: 0 4px 20px -5px var(--accent-primary);
}
.primary:hover:not(:disabled) {
    filter: brightness(1.15);
    box-shadow: 0 8px 25px -5px var(--accent-primary);
}

.ghost {
    background: var(--glass);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.ghost:hover:not(:disabled) {
    background: var(--border-color);
    border-color: color-mix(in srgb, var(--border-color) 80%, #fff);
}
.ghost.danger:hover:not(:disabled) {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
    box-shadow: 0 0 15px -2px var(--danger);
}

.icon-btn {
    padding: 0;
    width: 38px;
    height: 38px;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
}
.icon-btn:hover:not(:disabled) {
    background: var(--glass);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.icon-btn svg {
    width: 20px;
    height: 20px;
}

.text-btn {
    padding: 0.25rem 0.75rem;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}
.text-btn:hover:not(:disabled) {
    background: var(--glass);
    border-color: var(--border-color);
    color: var(--text-primary);
}
.text-btn.danger:hover:not(:disabled) {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}


.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    align-items: end;
}

label {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

input, .select-wrapper, textarea {
    background: color-mix(in srgb, var(--bg) 50%, transparent);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    transition: all var(--transition-fast);
    height: 48px;
    font-size: 16px; 
}

input[type="month"] {
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a8a29e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'%3E%3C/rect%3E%3Cline x1='16' y1='2' x2='16' y2='6'%3E%3C/line%3E%3Cline x1='8' y1='2' x2='8' y2='6'%3E%3C/line%3E%3Cline x1='3' y1='10' x2='21' y2='10'%3E%3C/line%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 20px;
    cursor: pointer;
}
input[type="month"]::-webkit-calendar-picker-indicator {
    opacity: 0;
    cursor: pointer;
}


textarea {
    height: auto;
    min-height: 80px;
    resize: vertical;
}

input:focus, .select-wrapper:focus-within, textarea:focus {
    border-color: var(--accent-primary);
    outline: none;
    box-shadow: var(--glow);
}


.select-wrapper {
    position: relative;
    padding: 0; 
}
.select-wrapper select {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    padding: 0 1rem; 
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
    
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.select-wrapper::after {
    content: '▾';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none; 
    transition: transform var(--transition-fast);
}

.select-wrapper:focus-within::after {
    transform: translateY(-50%) rotate(180deg);
}

.select-wrapper select option {
    background: var(--surface-2);
    color: var(--text-primary);
}



.context-wrapper {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 2rem;
    transition: all 300ms ease-in-out;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}
.context-wrapper:not(.hidden) {
    max-height: 200px; 
    opacity: 1;
}
.char-count {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    text-align: right;
    margin: 0;
}

.analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    transition: filter var(--transition-fast);
}
.loading-analysis {
    filter: blur(5px) saturate(0.8);
    pointer-events: none;
}

.analysis-card {
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    opacity: 0;
    transform: translateY(15px);
    animation: slideInFade 500ms var(--transition-base) forwards;
}
@keyframes slideInFade {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.analysis-card:nth-child(1) { animation-delay: 100ms; }
.analysis-card:nth-child(2) { animation-delay: 200ms; }

.analysis-card h3 {
    margin: 0 0 1rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--accent-primary);
}
.analysis-card p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
    position: relative;
}
.analysis-card p.typing::after {
    content: '▋';
    animation: blink 1s step-end infinite;
    color: var(--accent-primary);
    margin-left: 0.25rem;
}
@keyframes blink {
    from, to { opacity: 1; }
    50% { opacity: 0; }
}

.ai-disclaimer {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    opacity: 0.8;
    text-align: center;
    margin-top: 1.5rem;
    margin-bottom: 0;
}


.main-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    align-items: stretch;
}


.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}
.project-card {
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: all var(--transition-base);
}
.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px -5px var(--accent-primary);
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.project-card-header h4 {
    margin: 0;
    font-size: var(--font-size-md);
    font-weight: 600;
}
.project-actions {
    display: flex;
    gap: 0.25rem;
}

.project-progress {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.progress-bar {
    flex-grow: 1;
    height: 10px;
    background-color: var(--glass);
    border-radius: var(--radius-full);
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}
.progress-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--accent-primary);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

#savings-projection {
    margin-bottom: 2rem;
}
.projection-text {
    margin: 1rem 0 0;
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.panel-empty {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-style: italic;
    background: var(--glass);
    border-radius: var(--radius-sm);
}


.budget-editor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.budget-input-group {
    display: flex;
    align-items: end;
    gap: 1rem;
}
.budget-input-icon {
    color: var(--accent-primary);
    background: var(--glass);
    border-radius: var(--radius-sm);
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}
.budget-input-group label {
    flex-grow: 1;
    gap: 0.25rem;
}
.budget-input-group input {
    height: 48px;
    padding: 0.5rem 1rem;
    background: color-mix(in srgb, var(--bg) 50%, transparent);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
}
.budget-input-group input:focus {
    box-shadow: var(--glow);
    border-color: var(--accent-primary);
}


.trends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.trend-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--glass);
    padding: 1.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}
.trend-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: grid;
    place-items: center;
}
.trend-icon.danger {
    background: color-mix(in srgb, var(--danger) 20%, transparent);
    color: var(--danger);
}
.trend-icon.success {
    background: color-mix(in srgb, var(--success) 20%, transparent);
    color: var(--success);
}
.trend-details h4 {
    margin: 0;
    font-size: var(--font-size-base);
    font-weight: 600;
}
.trend-details p {
    margin: 0;
    font-size: var(--font-size-md);
    font-weight: 700;
}
.trend-details p.danger { color: var(--danger); }
.trend-details p.success { color: var(--success); }


.charts-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 2rem 0;
}
.chart-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    background: var(--glass);
    min-width: 0; 
}
.chart-card h3 {
    margin: 0 0 1rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}
.chart-card canvas {
    max-height: 200px;
}


.table-wrapper {
    margin-top: 1.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
    overflow-x: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}
th {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
tbody tr:hover {
    background-color: var(--glass);
}
td .table-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: flex-start;
}


#project-dialog, #confirm-dialog {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: clamp(1.5rem, 5vw, 2.5rem);
    background: var(--surface-1);
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    max-height: 85vh;
    overflow-y: auto;
    width: min(500px, 95vw);
}
#project-dialog::backdrop, #confirm-dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
}
.dialog-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
}
#project-form, #confirm-dialog form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
}
#project-form h3, #confirm-dialog h3 {
    margin: 0 0 1rem;
    font-size: var(--font-size-lg);
}
#confirm-dialog p {
    margin: 0;
    color: var(--text-secondary);
}
.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}


#snackbar-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
    z-index: 1000;
}
.snackbar {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    background: rgba(40, 37, 35, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    opacity: 0;
    transform: translateX(100%);
    transition: all 400ms cubic-bezier(0.4, 0, 0.2, 1);
}
.snackbar.show {
    opacity: 1;
    transform: translateX(0);
}
.snackbar.danger {
    background: rgba(239, 68, 68, 0.8);
    color: #fff;
    border-color: rgba(239, 68, 68, 0.9);
}
.snackbar.success {
    background: rgba(16, 185, 129, 0.8);
    color: #fff;
    border-color: rgba(16, 185, 129, 0.9);
}


#app-footer {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}
#app-footer p {
    margin: 0;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}



.hidden {
    display: none !important;
}
.loading > * {
    visibility: hidden;
}
.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin: -8px 0 0 -8px;
    border: 2px solid;
    border-color: currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.error-message {
    color: var(--danger);
    font-size: var(--font-size-sm);
}


.login-shell .form-grid.single-column {
    grid-template-columns: 1fr;
}

.toggle-form {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.toggle-form p {
    margin: 0;
    color: var(--text-secondary);
}

.toggle-form a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.toggle-form a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}


@media (max-width: 768px) {
    .charts-stack, .analysis-grid, .projects-grid, .main-grid, .trends-grid, .budget-editor-grid {
        grid-template-columns: 1fr;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-grid input, .form-grid .select-wrapper {
        width: 100%;
    }
    #snackbar-container {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        align-items: stretch;
    }
    #budget-section .header-actions {
        width: 100%;
    }
    #budget-month-selector {
        width: 100%;
    }
}