/* ==========================================================================
   Carbon Emissions Counter — 2026 theme
   Dark "climate data" look: deep green-black, emerald data, solar-gold accents.
   Fonts are self-hosted (the site's CSP blocks third-party font hosts).
   ========================================================================== */

@font-face {
    font-family: 'Fira Sans';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/fira-sans-latin-400-normal.woff2') format('woff2');
}
@font-face {
    font-family: 'Fira Sans';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/fira-sans-latin-500-normal.woff2') format('woff2');
}
@font-face {
    font-family: 'Fira Sans';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/fira-sans-latin-600-normal.woff2') format('woff2');
}
@font-face {
    font-family: 'Fira Sans';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/fira-sans-latin-700-normal.woff2') format('woff2');
}
@font-face {
    font-family: 'Fira Code';
    font-style: normal;
    font-weight: 300 700;
    font-display: swap;
    src: url('../fonts/fira-code-latin-wght-normal.woff2') format('woff2-variations');
}

:root {
    color-scheme: dark;

    /* Surfaces */
    --color-bg: #050b09;
    --color-bg-2: #08130f;
    --color-surface: rgba(14, 30, 24, 0.72);
    --color-surface-solid: #0d1c17;
    --color-surface-raised: #12261f;
    --color-border: rgba(52, 211, 153, 0.14);
    --color-border-strong: rgba(52, 211, 153, 0.32);

    /* Text */
    --color-text: #ecfdf5;
    --color-text-muted: #a3bfb4;
    --color-text-subtle: #7f9c91;

    /* Brand */
    --color-primary: #10b981;
    --color-primary-bright: #34d399;
    --color-primary-soft: rgba(16, 185, 129, 0.12);
    --color-gold: #fbbf24;
    --color-gold-soft: rgba(251, 191, 36, 0.12);
    --color-danger: #f87171;
    --color-danger-soft: rgba(248, 113, 113, 0.12);

    /* Type */
    --font-sans: 'Fira Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'Fira Code', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;

    /* Shape & depth */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 24px 48px -24px rgba(0, 0, 0, 0.6);
    --glow-primary: 0 0 40px rgba(52, 211, 153, 0.25);

    /* Motion */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --dur-fast: 150ms;
    --dur: 250ms;

    --nav-height: 64px;

    /* Legacy names kept for any inline styles that still reference them */
    --accent-color: var(--color-primary-bright);
    --text-color: var(--color-text);
    --secondary-text: var(--color-text-muted);
    --card-bg: var(--color-surface);
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-height) + 16px);
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    background-image:
        radial-gradient(60rem 40rem at 10% -10%, rgba(16, 185, 129, 0.16), transparent 60%),
        radial-gradient(50rem 36rem at 100% 30%, rgba(251, 191, 36, 0.06), transparent 60%),
        radial-gradient(60rem 40rem at 50% 110%, rgba(16, 185, 129, 0.10), transparent 60%);
    background-attachment: fixed;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Faint data-grid texture */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(52, 211, 153, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(52, 211, 153, 0.045) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
}

img,
svg,
canvas {
    display: block;
    max-width: 100%;
}

a {
    color: var(--color-primary-bright);
    text-decoration: none;
}

button,
select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    background: none;
    border: 0;
}

:focus-visible {
    outline: 2px solid var(--color-primary-bright);
    outline-offset: 3px;
    border-radius: 6px;
}

sub {
    font-size: 0.7em;
    vertical-align: -0.2em;
    line-height: 0;
}

.skip-link {
    position: absolute;
    left: 16px;
    top: -100px;
    z-index: 200;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-bright);
    color: #022c22;
    font-weight: 600;
}

.skip-link:focus {
    top: 12px;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: calc(var(--nav-height) + 32px) 24px 0;
}

/* --------------------------------------------------------------------------
   Floating particles (decorative)
   -------------------------------------------------------------------------- */

.background-particles {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    bottom: -10px;
    border-radius: 50%;
    background: var(--color-primary-bright);
    box-shadow: 0 0 12px var(--color-primary-bright);
    opacity: 0;
    animation: particleFloat 16s linear infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(0); opacity: 0; }
    15% { opacity: 0.5; }
    85% { opacity: 0.35; }
    100% { transform: translateY(-105vh); opacity: 0; }
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */

.nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 max(24px, calc((100vw - 1200px) / 2 + 24px));
    background: rgba(5, 11, 9, 0.72);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    border-bottom: 1px solid var(--color-border);
}

.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.nav-brand svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary-bright);
}

.nav-items {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-items a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--dur-fast) ease, background-color var(--dur-fast) ease;
}

.nav-items a:hover {
    color: var(--color-text);
    background: var(--color-primary-soft);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: border-color var(--dur-fast) ease;
}

.nav-toggle:hover {
    border-color: var(--color-border-strong);
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--color-text);
    transition: transform var(--dur) var(--ease-out), opacity var(--dur-fast) ease;
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Disclaimer page back link */
.back-link,
.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    color: var(--color-primary-bright);
    font-weight: 500;
    transition: opacity var(--dur-fast) ease;
}

.back-link:hover,
.back-button:hover {
    opacity: 0.8;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.counter-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.title {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    padding: 32px 0 24px;
}

.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid var(--color-border-strong);
    background: var(--color-primary-soft);
    color: var(--color-primary-bright);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary-bright);
    box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6);
    animation: livePulse 2s ease-out infinite;
}

@keyframes livePulse {
    0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6); }
    70% { box-shadow: 0 0 0 10px rgba(52, 211, 153, 0); }
    100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.title h1 {
    font-size: clamp(2rem, 5.5vw, 3.75rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.03em;
    text-wrap: balance;
    background: linear-gradient(180deg, #ffffff 30%, #a7f3d0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-tagline {
    max-width: 40rem;
    color: var(--color-text-muted);
    font-size: clamp(1rem, 1.6vw, 1.125rem);
    text-wrap: pretty;
}

/* --------------------------------------------------------------------------
   Counter cards
   -------------------------------------------------------------------------- */

.counters-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.counter-box {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 28px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color var(--dur) ease, transform var(--dur) var(--ease-out);
}

/* Thin highlight along the top edge */
.counter-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 24px;
    right: 24px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(52, 211, 153, 0.5), transparent);
}

.counter-box:hover {
    border-color: var(--color-border-strong);
}

.counter-header {
    width: 100%;
    margin-bottom: 12px;
}

.counter-header h2,
.chart-title {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.counter {
    display: flex;
    align-items: baseline;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0 12px;
    margin: 4px 0 8px;
    font-family: var(--font-mono);
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
    font-variant-ligatures: none;
    color: var(--color-text);
    overflow-wrap: anywhere;
}

.counter .unit {
    font-size: 0.45em;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--color-text-muted);
}

.subtitle {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.time-ago,
.time-info,
.time-reference {
    margin-top: 10px;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-text-subtle);
}

.time-ago {
    color: var(--color-primary-bright);
}

/* Country card */
.country-selector {
    width: 100%;
    max-width: 280px;
    margin-top: 16px;
}

.country-dropdown {
    width: 100%;
    min-height: 44px;
    padding: 10px 40px 10px 14px;
    border-radius: 12px;
    border: 1px solid var(--color-border-strong);
    background-color: var(--color-surface-raised);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2334d399' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    color: var(--color-text);
    font-size: 1rem;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
}

.country-dropdown:hover {
    border-color: var(--color-primary-bright);
}

.country-dropdown:focus-visible {
    outline: none;
    border-color: var(--color-primary-bright);
    box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.3);
}

.country-dropdown option {
    background: var(--color-surface-solid);
    color: var(--color-text);
}

p.country-info {
    margin-top: 10px;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-primary-bright);
}

/* Yearly card — the hero number */
.yearly-counter-container {
    display: block;
}

.yearly-counter {
    padding: 40px 24px;
    background:
        radial-gradient(40rem 14rem at 50% 0%, rgba(16, 185, 129, 0.14), transparent 70%),
        var(--color-surface);
}

.yearly-counter .counter {
    font-size: clamp(2rem, 7vw, 4.75rem);
    font-weight: 700;
    background: linear-gradient(180deg, #ecfdf5 0%, var(--color-primary-bright) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 24px rgba(52, 211, 153, 0.25));
}

/* Carbon budget card — warning tone */
.carbon-budget-counter {
    border-color: rgba(251, 191, 36, 0.2);
    background:
        radial-gradient(40rem 14rem at 50% 0%, rgba(251, 191, 36, 0.08), transparent 70%),
        var(--color-surface);
}

.carbon-budget-counter::before {
    background: linear-gradient(90deg, transparent, rgba(251, 191, 36, 0.55), transparent);
}

.carbon-budget-counter:hover {
    border-color: rgba(251, 191, 36, 0.4);
}

.carbon-budget-counter .counter {
    color: var(--color-gold);
}

.progress-container {
    width: 100%;
    max-width: 880px;
    margin: 20px auto 0;
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 12px;
    border-radius: 999px;
    /* The gradient lives on the track; the fill's shadow dims the unused part */
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-gold) 65%, var(--color-danger) 100%);
    border: 1px solid rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.progress {
    height: 100%;
    background: transparent;
    box-shadow: 0 0 0 100vw rgba(13, 24, 20, 0.92);
    transition: width 0.4s var(--ease-out);
}

.progress.critical {
    background: var(--color-danger);
}

.progress-labels {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin-top: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-subtle);
}

#budget-percentage {
    color: var(--color-gold);
    font-weight: 600;
}

.additional-info {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    width: 100%;
    max-width: 880px;
    margin: 20px auto 0;
}

.additional-info p {
    padding: 14px 16px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(0, 0, 0, 0.2);
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.additional-info span {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--color-gold);
}

@keyframes urgentPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.counter-value.urgent {
    color: var(--color-danger);
    animation: urgentPulse 2s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   Info buttons & tooltips
   -------------------------------------------------------------------------- */

.info-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin: -6px 0;
    border-radius: 50%;
    color: var(--color-primary-bright);
    opacity: 0.85;
    transition: opacity var(--dur-fast) ease, background-color var(--dur-fast) ease;
}

.info-button:hover,
.info-button[aria-expanded='true'] {
    opacity: 1;
    background: var(--color-primary-soft);
}

.info-button svg {
    width: 18px;
    height: 18px;
}

.info-tooltip {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    z-index: 50;
    width: max-content;
    max-width: min(340px, calc(100vw - 32px));
    padding: 14px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-strong);
    background: #08130f;
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.7);
    transform: translateX(-50%);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.55;
    letter-spacing: 0;
    text-align: left;
    text-transform: none;
}

/* Lift the card holding an open tooltip above its neighbours */
.counter-box:has(.info-tooltip.is-open),
.chart-section:has(.info-tooltip.is-open) {
    z-index: 30;
}

.info-tooltip.is-open {
    display: block;
    animation: tooltipIn var(--dur) var(--ease-out);
}

.info-tooltip p + p {
    margin-top: 8px;
}

@keyframes tooltipIn {
    from { opacity: 0; transform: translate(-50%, -4px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

/* --------------------------------------------------------------------------
   Info panels
   -------------------------------------------------------------------------- */

.info-panels {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.panel {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 16px;
    align-items: start;
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
}

.panel-icon {
    grid-row: span 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
}

.panel-icon svg {
    width: 22px;
    height: 22px;
}

.panel.impact .panel-icon {
    background: var(--color-gold-soft);
    color: var(--color-gold);
}

.panel.action .panel-icon {
    background: var(--color-primary-soft);
    color: var(--color-primary-bright);
}

.panel h2 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text);
}

.panel p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* --------------------------------------------------------------------------
   Section headings
   -------------------------------------------------------------------------- */

.section-heading {
    margin-bottom: 24px;
    text-align: center;
}

.section-eyebrow {
    display: block;
    margin-bottom: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-primary-bright);
}

.faq-section > h2,
.section-heading h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-text);
    text-align: center;
    text-wrap: balance;
}

/* --------------------------------------------------------------------------
   Charts
   -------------------------------------------------------------------------- */

.chart-section {
    position: relative;
    margin-top: 96px;
    padding: 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-card);
}

.chart-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.chart-titles {
    flex: 1;
    min-width: 0;
    text-align: center;
}

.chart-title {
    font-size: clamp(1.0625rem, 2vw, 1.375rem);
    letter-spacing: -0.01em;
    text-transform: none;
    color: var(--color-text);
}

.chart-title .info-tooltip {
    font-size: 0.875rem;
}

.nav-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--color-border-strong);
    background: var(--color-surface-raised);
    color: var(--color-primary-bright);
    transition: background-color var(--dur-fast) ease, border-color var(--dur-fast) ease, opacity var(--dur-fast) ease;
}

.nav-button:hover:not(.disabled) {
    background: var(--color-primary-soft);
    border-color: var(--color-primary-bright);
}

.nav-button.disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.chart-dots {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin: 12px 0 8px;
}

/* 24px hit area around a small visible dot */
.dot {
    position: relative;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
}

.dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--dur) var(--ease-out), background-color var(--dur-fast) ease;
}

.dot:hover::after {
    background: rgba(255, 255, 255, 0.4);
}

.dot.active::after {
    width: 20px;
    background: var(--color-primary-bright);
}

.charts-wrapper {
    position: relative;
    width: 100%;
}

.chart-container {
    position: relative;
    width: 100%;
    height: 440px;
}

.chart-container canvas {
    width: 100% !important;
}

/* --------------------------------------------------------------------------
   FAQ
   -------------------------------------------------------------------------- */

.faq-section {
    margin-top: 96px;
}

.faq-section > h2 {
    margin-bottom: 32px;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    transition: border-color var(--dur-fast) ease, background-color var(--dur-fast) ease;
}

.faq-item:hover {
    border-color: var(--color-border-strong);
}

.faq-item.active {
    border-color: var(--color-border-strong);
    background: rgba(16, 38, 30, 0.8);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
    min-height: 56px;
    padding: 16px 20px;
    border-radius: inherit;
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.4;
    text-align: left;
}

.arrow-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--color-primary-bright);
    transition: transform var(--dur) var(--ease-out);
}

.faq-item.active .arrow-icon {
    transform: rotate(180deg);
}

.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--dur) var(--ease-out);
}

.faq-answer > p {
    overflow: hidden;
    padding: 0 20px;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    grid-template-rows: 1fr;
}

.faq-item.active .faq-answer > p {
    padding-bottom: 20px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
    margin-top: 96px;
    padding: 40px 0 32px;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
}

.footer-section h3 {
    margin-bottom: 10px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary-bright);
}

.footer-section p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.copyright {
    color: var(--color-text-subtle);
    font-size: 0.875rem;
}

.footer-link {
    color: var(--color-primary-bright);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: rgba(52, 211, 153, 0.4);
    transition: text-decoration-color var(--dur-fast) ease;
}

.footer-link:hover {
    text-decoration-color: currentColor;
}

/* --------------------------------------------------------------------------
   Disclaimer page
   -------------------------------------------------------------------------- */

.disclaimer-page {
    max-width: 820px;
}

.disclaimer-content {
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    margin-bottom: 32px;
}

.disclaimer-content h1 {
    margin-bottom: 24px;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.disclaimer-content h2 {
    margin: 28px 0 10px;
    font-size: 1.25rem;
    color: var(--color-primary-bright);
}

.disclaimer-content p,
.disclaimer-content li {
    color: var(--color-text-muted);
}

.disclaimer-content section {
    margin-bottom: 24px;
}

.disclaimer-content ul {
    margin: 12px 0 0 1.5rem;
    list-style: disc;
}

.disclaimer-content li {
    margin-bottom: 6px;
}

.agreement {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-style: italic;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 860px) {
    .nav-toggle {
        display: inline-flex;
    }

    .nav-items {
        position: absolute;
        top: calc(var(--nav-height) - 1px);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 8px 16px 16px;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 24px 48px -16px rgba(0, 0, 0, 0.8);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity var(--dur) ease, transform var(--dur) var(--ease-out), visibility 0s linear var(--dur);
    }

    .nav-items.show {
        opacity: 1;
        visibility: visible;
        transform: none;
        transition: opacity var(--dur) ease, transform var(--dur) var(--ease-out);
    }

    .nav-items a {
        min-height: 48px;
        padding: 12px 16px;
        border-radius: 12px;
        font-size: 1rem;
    }

    .counters-grid,
    .info-panels {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 600px) {
    :root {
        --nav-height: 60px;
    }

    .container {
        padding: calc(var(--nav-height) + 16px) 16px 0;
    }

    .nav-menu {
        padding: 0 16px;
    }

    .title {
        padding: 20px 0 12px;
    }

    .counter-box {
        padding: 24px 16px;
        border-radius: 20px;
    }

    .yearly-counter {
        padding: 32px 16px;
    }

    .additional-info {
        grid-template-columns: 1fr;
    }

    .progress-labels {
        font-size: 0.6875rem;
    }

    .chart-section {
        margin-top: 64px;
        padding: 20px 12px;
    }

    .chart-container {
        height: 380px;
    }

    .faq-section,
    .site-footer {
        margin-top: 64px;
    }

    .faq-question {
        padding: 14px 16px;
        font-size: 0.9375rem;
    }

    .faq-answer > p {
        padding: 0 16px;
    }

    .disclaimer-content {
        padding: 24px 18px;
    }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .background-particles {
        display: none;
    }

    [data-aos] {
        opacity: 1 !important;
        transform: none !important;
    }
}