:root {
    --bg-color: #121212;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --accent-blue: #4DA8DA;
    --accent-orange: #E27D60;
    --panel-bg: #1E1E1E;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    overflow-y: auto;
    min-height: 100vh;
    width: 100vw;
}

.dashboard-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 20px;
}

.macro-banner {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
    padding-bottom: 15px;
}

.macro-banner-spacer {
    flex: 0 0 140px;
}

.macro-block {
    flex: 1;
    display: flex;
    flex-direction: column;
    text-align: center;
}

.macro-banner-actions {
    flex: 0 0 140px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.download-icon-btn {
    background: none;
    border: 1px solid #444;
    color: var(--text-primary);
    cursor: pointer;
    padding: 7px 10px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    -webkit-tap-highlight-color: transparent;
    -webkit-transition: border-color 0.2s, color 0.2s;
    transition: border-color 0.2s, color 0.2s;
}

.download-icon-btn:hover {
    border-color: var(--text-secondary);
    color: var(--accent-blue);
}

.download-btn-text {
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.macro-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.pressure-trend-section {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    padding-bottom: 15px;
}

.hero-section {
    /* flex: 1;  */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.zone-title {
    color: var(--text-secondary);
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 5px;
}

.hero-temp {
    font-size: 11rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -2px;
}

@media (max-width: 600px) {
    .hero-temp {
        font-size: 6rem;
    }

    .macro-value {
        font-size: 1.5rem;
    }

    .hero-context {
        font-size: 1.1rem;
    }

    .download-btn-text {
        display: none;
    }

    .macro-banner-spacer,
    .macro-banner-actions {
        flex: 0 0 44px;
    }

    .visualizer-section {
        flex: 0 0 300px; /* Fixed height on small screens to ensure visibility */
        margin-bottom: 20px;
    }
}

.hero-context {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    font-size: 1.5rem; 
    font-weight: 500; 
    color: var(--text-secondary);
}

.divider {
    color: #444;
}

.zone-dropdown-container {
    flex: 0 0 auto;
    display: flex;
    justify-content: center;
    padding: 15px 0;
}

#sensor-dropdown {
    background-color: var(--panel-bg);
    color: var(--text-primary);
    border: none;
    border-radius: 8px;
    padding: 12px 20px;
    font-size: 1.1rem;
    width: 80%;
    max-width: 400px;
    appearance: none;
    text-align: center;
}

.visualizer-section {
    flex: 0 0 auto; /* Matches the pressure section */
    padding: 15px 0 5px 0;
    position: relative;
    display: flex;
    flex-direction: column;
}

.chart-container {
    position: relative;
    width: 100%;
    height: 17vh; /* Hard-lock the height */
}

.sparkline-container {
    position: relative;
    width: 100%;
    height: 17vh; /* Hard-lock the height to match */
}

.wind-history-strip {
    display: flex;
    flex-direction: row;
    height: 50px;
    margin-bottom: 3px;
}

.wind-strip-label {
    flex: 0 0 75px; /* matches Chart.js y-axis afterFit width */
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.wind-strip-label span {
    display: block;
    transform: rotate(-90deg);
    font-size: 10px;
    letter-spacing: 0.15em;
    color: #888;
    white-space: nowrap;
}

#ui-wind-history {
    position: relative;
    flex: 1 1 0;
    height: 100%;
}

.global-telemetry {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 15px;
    border-top: 1px solid #333;
    border-bottom: 1px solid #333;
}

.telemetry-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 100px;
}

.telemetry-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.telemetry-value {
    font-size: 1.4rem;
    font-weight: 300;
}

.telemetry-sub {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-top: 2px;
}


/* ─── Download Modal ─────────────────────────────────────────────────── */

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal {
    background: var(--panel-bg);
    border-radius: 16px;
    width: 90%;
    max-width: 420px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 20px 0 20px;
}

.modal-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    padding: 6px 8px;
    -webkit-tap-highlight-color: transparent;
    line-height: 1;
}

.modal-body {
    padding: 20px;
}

.modal-section {
    margin-bottom: 24px;
}

.modal-section-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.modal-format-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 24px;
}

/* Preset chips */

.preset-chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.preset-chip {
    background: #2a2a2a;
    border: 1px solid #333;
    color: var(--text-secondary);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 0.85rem;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    -webkit-transition: border-color 0.15s, color 0.15s;
    transition: border-color 0.15s, color 0.15s;
}

.preset-chip.active {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* Custom date inputs */

.custom-date-inputs {
    display: none;
    gap: 12px;
}

.date-field {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.date-label {
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.date-input {
    background: #2a2a2a;
    border: 1px solid #333;
    border-radius: 8px;
    color: var(--text-primary);
    padding: 10px;
    font-size: 0.9rem;
    width: 100%;
}

.date-input.error {
    border-color: #ff4444;
}

/* Download button */

.modal-footer {
    padding: 0 20px 20px 20px;
}

.download-csv-btn {
    width: 100%;
    background: var(--accent-blue);
    color: #000;
    border: none;
    border-radius: 10px;
    padding: 16px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}


/* ── Site Nav ─────────────────────────────────────────────────────────────── */

.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #1a1a1a;
    border-bottom: 1px solid #2a2a2a;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 20px;
    height: 56px;
}

.site-nav-brand {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.site-nav-center {
    display: flex;
    justify-content: center;
}

.site-nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
}

.site-nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    padding: 6px 12px;
    border-radius: 6px;
    transition: color 0.15s;
}

.site-nav-link:hover {
    color: var(--text-primary);
}

.site-nav-tour {
    background: var(--accent-blue);
    color: #000;
    border: none;
    border-radius: 8px;
    padding: 10px 28px;
    font-size: 1.05rem;
    font-weight: 800;
    cursor: pointer;
    white-space: nowrap;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

/* Offset anchor targets so the sticky nav doesn't cover them */
#architecture,
#about {
    scroll-margin-top: 56px;
}


/* ── Architecture Section ─────────────────────────────────────────────────── */

.site-section {
    max-width: 960px;
    margin: 0 auto;
    padding: 60px 20px;
}

.site-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-primary);
    text-align: center;
}

.arch-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.arch-card {
    background: var(--panel-bg);
    border-radius: 12px;
    padding: 20px;
}

.arch-card-icon {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.arch-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.arch-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.arch-demo-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: center;
    font-style: italic;
    margin-bottom: 1.5rem;
}


/* ── About Section ────────────────────────────────────────────────────────── */

#about {
    border-top: 1px solid #2a2a2a;
}

.about-body {
    max-width: 640px;
    margin: 0 auto;
}

.about-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.about-github-btn {
    display: block;
    width: fit-content;
    margin-top: 2rem;
    margin-left: auto;
    background: var(--accent-blue);
    color: #000;
    text-decoration: none;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
}


/* ── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 640px) {
    .site-nav {
        grid-template-columns: auto 1fr auto;
    }

    .site-nav-brand {
        display: none;
    }

    .site-nav-tour {
        font-size: 0.875rem;
        padding: 7px 14px;
    }

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

@media (min-width: 641px) and (max-width: 900px) {
    .arch-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* ── Tour button glow pulse ───────────────────────────────────────────────── */

@keyframes tour-glow {
    0%, 100% { box-shadow: 0 0 6px 2px rgba(77, 168, 218, 0.3); }
    50%       { box-shadow: 0 0 28px 10px rgba(77, 168, 218, 0.75), 0 0 6px 2px rgba(77, 168, 218, 0.4); }
}

.site-nav-tour {
    animation: tour-glow 2.2s ease-in-out infinite;
}

.site-nav-tour:hover {
    animation: none;
    box-shadow: 0 0 32px 12px rgba(77, 168, 218, 0.85), 0 0 8px 3px rgba(77, 168, 218, 0.5);
}


/* ── Arch card fade-up animation ─────────────────────────────────────────── */

.arch-animate {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.arch-animate.arch-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger each card slightly */
.arch-animate:nth-child(2) { transition-delay: 0.07s; }
.arch-animate:nth-child(3) { transition-delay: 0.14s; }
.arch-animate:nth-child(4) { transition-delay: 0.21s; }
.arch-animate:nth-child(5) { transition-delay: 0.28s; }
.arch-animate:nth-child(6) { transition-delay: 0.35s; }


/* ── Driver.js theme overrides ───────────────────────────────────────────── */

#driver-popover-content {
    background: #1e1e1e;
    border: 1px solid #2a2a2a;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    max-width: 360px;
    padding: 16px;
}

#driver-popover-title {
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
}

#driver-popover-description {
    color: #d8d8d8;
    font-size: 0.85rem;
    line-height: 1.6;
}

#driver-popover-navigation-btns button {
    background: #2a2a2a;
    border: 1px solid #3a3a3a;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.82rem;
    font-weight: 500;
    padding: 7px 14px;
    cursor: pointer;
    text-shadow: none;
}

#driver-popover-navigation-btns button:hover {
    background: #333;
}

#driver-popover-next-btn {
    background: var(--accent-blue) !important;
    border-color: var(--accent-blue) !important;
    color: #000 !important;
    font-weight: 700 !important;
}

#driver-popover-close-btn {
    color: var(--text-secondary);
    font-size: 1rem;
}

.driver-popover-arrow-side-top.driver-popover-arrow::after    { border-top-color:    #2a2a2a; }
.driver-popover-arrow-side-bottom.driver-popover-arrow::after { border-bottom-color: #2a2a2a; }
.driver-popover-arrow-side-left.driver-popover-arrow::after   { border-left-color:   #2a2a2a; }
.driver-popover-arrow-side-right.driver-popover-arrow::after  { border-right-color:  #2a2a2a; }