:root {
    /* Deep Focus Color Palette */
    --bg-deep: #0e1117;
    --bg-panel: rgba(22, 27, 34, 0.7);
    --border-glass: rgba(255, 255, 255, 0.1);
    --text-main: #c9d1d9;
    --text-muted: #8b949e;

    /* Neons / Accents */
    --accent-blue: #58a6ff;
    --accent-purple: #bc8cff;
    --accent-glow: rgba(88, 166, 255, 0.15);

    /* Grid Heatmap Colors (GitHub style but purple/blue) */
    --heat-0: #161b22;
    --heat-1: #302157;
    --heat-2: #513197;
    --heat-3: #7544d6;
    --heat-4: #a475f9;

    /* Status Colors */
    --status-good: #3fb950;
    --status-warn: #d29922;
    --status-bad: #f85149;

    --font-ui: 'Inter', -apple-system, sans-serif;
    --font-mono: 'Roboto Mono', monospace;
}

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

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-ui);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(88, 166, 255, 0.04), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(188, 140, 255, 0.04), transparent 25%);
}

.mono {
    font-family: var(--font-mono);
}

/* Typography elements */
h1,
h2,
h3 {
    color: #ffffff;
    font-weight: 600;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-purple);
}

.gradient-text {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    border-bottom: 1px solid var(--border-glass);
    background: rgba(14, 17, 23, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.5px;
}

.nav-brand svg {
    color: var(--accent-purple);
}

.nav-brand span {
    font-weight: 300;
    opacity: 0.7;
}

.nav-links a {
    margin-left: 2rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.nav-links a:hover {
    color: #fff;
}

/* Main Container */
.app-container {
    flex-grow: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    width: 100%;
}

.app-header {
    text-align: center;
    margin-bottom: 3rem;
}

.app-header h1 {
    font-size: 2.5rem;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.app-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Glass Panels */
.glass-panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 2rem;
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-glass);
}

.panel-header h2 {
    font-size: 1.25rem;
    font-weight: 500;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.full-width {
    grid-column: 1 / -1;
}

label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input[type="text"],
input[type="number"],
input[type="date"] {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-family: var(--font-ui);
    font-size: 1rem;
    transition: all 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.btn-primary,
.btn-secondary {
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-ui);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: #fff;
    grid-column: 1 / -1;
    margin-top: 1rem;
    font-size: 1.1rem;
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(188, 140, 255, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: #fff;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: 0.2s;
}

.btn-icon:hover {
    color: var(--status-bad);
    background: rgba(248, 81, 73, 0.1);
}

/* Views Toggle */
.active-view {
    display: block;
    animation: fadeIn 0.4s ease;
}

.view-hidden {
    display: none;
}

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

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

/* Dashboard Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 2rem;
    align-items: start;
}

/* Left Col: Stats */
.meta-data {
    margin-bottom: 2rem;
    text-align: center;
}

.meta-data h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.progress-container {
    height: 8px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    width: 0%;
    transition: width 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

.progress-text span {
    color: #fff;
    font-weight: 500;
}

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

.metric-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 1.25rem;
}

.metric-card.highlight {
    border-color: rgba(88, 166, 255, 0.3);
    background: rgba(88, 166, 255, 0.05);
}

.metric-card.warning {
    border-color: rgba(210, 153, 34, 0.3);
}

.metric-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 2rem;
    color: #fff;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.unit-xs {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.metric-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.status-good {
    color: var(--status-good);
}

.status-bad {
    color: var(--status-bad);
}

/* Right Col: Matrix */
.matrix-controls {
    display: flex;
    gap: 0.5rem;
}

.matrix-controls input {
    width: 120px;
    padding: 0.5rem;
}

.matrix-container {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    margin-bottom: 1.5rem;
}

.day-cell {
    aspect-ratio: 1;
    background: var(--heat-0);
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.02);
    position: relative;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}

.day-cell:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.day-cell.s1 {
    background: var(--heat-1);
}

.day-cell.s2 {
    background: var(--heat-2);
}

.day-cell.s3 {
    background: var(--heat-3);
}

.day-cell.s4 {
    background: var(--heat-4);
    box-shadow: 0 0 8px var(--accent-purple);
    border-color: transparent;
}

.day-cell.future {
    opacity: 0.3;
    cursor: not-allowed;
}

.day-cell.today {
    border: 2px solid var(--accent-blue);
}

.day-number {
    position: absolute;
    top: 4px;
    left: 4px;
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.3);
    font-family: var(--font-mono);
}

.matrix-legend {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.legend-scale {
    display: flex;
    gap: 4px;
}

.swatch {
    width: 12px;
    height: 12px;
    border-radius: 2px;
}

.swatch.s0 {
    background: var(--heat-0);
}

.swatch.s1 {
    background: var(--heat-1);
}

.swatch.s2 {
    background: var(--heat-2);
}

.swatch.s3 {
    background: var(--heat-3);
}

.swatch.s4 {
    background: var(--heat-4);
}

.milestone-tracker h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 0.5rem;
}

.milestone-list {
    list-style: none;
}

.milestone-list li {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
}

.ms-day {
    color: var(--accent-purple);
    font-weight: 500;
}

.ms-target {
    color: #fff;
}

.ms-status {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
}

.ms-status.reached {
    color: var(--status-good);
}

.ms-status.missed {
    color: var(--status-bad);
}

/* Ads */
.ad-container-glass {
    background: var(--bg-panel);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    margin-top: 2rem;
    padding: 1rem;
    min-height: 100px;
    display: none;
    /* hidden until loaded */
    text-align: center;
}

.ad-container-glass .ad-link {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ad-container-glass img {
    max-width: 100%;
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.bottom-ad-wrapper {
    margin-top: 3rem;
}

.inline-rect {
    max-width: 728px;
    margin: 0 auto;
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-glass);
    margin-top: auto;
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    margin: 0 1rem;
    font-size: 0.85rem;
}

.copyright {
    color: rgba(255, 255, 255, 0.2);
    font-size: 0.8rem;
}

/* Tooltips for matrix */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    z-index: 100;
    pointer-events: none;
    font-family: var(--font-mono);
    border: 1px solid var(--border-glass);
}

@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }
}