/* home.css — Light theme (teal/orange/creme) */

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    padding: 0;
    background-color: #FFFFFF;
    font-family: 'DM Sans', ui-sans-serif, system-ui, sans-serif;
}

canvas {
    display: block;
}

/* Glass card — light variant */
.glass-card {
    position: relative;
    z-index: 0;
    background: rgba(247, 237, 226, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(232, 221, 212, 0.5);
    border-radius: 0.5rem;
    transition: border-color 0.3s ease;
}

.glass-card:has(.output-popover[open]) {
    z-index: 20;
}

.output-popover {
    z-index: 30;
}

.glass-card:hover {
    border-color: #EE964B;
}

.text-glow {
    text-shadow: 0 0 10px rgba(238, 150, 75, 0.3);
}

.grid-gap-custom {
    gap: 24px;
}

.font-label-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-left: 16px;
    border-left: 1px solid rgba(232, 221, 212, 0.6);
}

.navbar-icon-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(232, 221, 212, 0.8);
    border-radius: 9999px;
    color: #6B7F82;
    background: rgba(247, 237, 226, 0.6);
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.navbar-icon-link:hover {
    color: #EE964B;
    border-color: #EE964B;
    background-color: rgba(238, 150, 75, 0.1);
}

.navbar-icon-link svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.navbar-icon-link .material-symbols-outlined {
    font-size: 20px;
    line-height: 1;
}

.navbar-icon-link--labeled {
    width: auto;
    gap: 8px;
    padding: 0 16px;
    height: 44px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Small fixed pill under the header, top right: invites visitors to suggest
   website improvements on the site's own GitHub repo (injected by header.js). */
.improve-banner {
    position: fixed;
    top: 73px; /* fixed header is 65px tall (32px logo + 2x16px py-md + border) */
    right: 16px;
    z-index: 40;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border: 1px solid rgba(232, 221, 212, 0.8);
    border-radius: 9999px;
    color: #6B7F82;
    background: rgba(247, 237, 226, 0.9);
    backdrop-filter: blur(8px);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.improve-banner:hover {
    color: #EE964B;
    border-color: #EE964B;
    background-color: rgba(238, 150, 75, 0.1);
}

.improve-banner .material-symbols-outlined {
    font-size: 14px;
    line-height: 1;
}

@media (min-width: 768px) {
    .improve-banner {
        right: 48px; /* align with px-margin-desktop */
    }
}

@media (max-width: 767.98px) {
    /* Icon-only on mobile so the pill never crowds page headings */
    .improve-banner-label {
        display: none;
    }

    .improve-banner {
        padding: 6px;
    }
}

/* Section nav (indice laterale) */
/* Section nav: dot + hover-expand panel overlay */
.section-nav {
    position: fixed;
    z-index: 40;
    left: 16px;
    margin-top: 0;
}

/* The dot trigger */
.section-nav__dot {
    display: block;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #EE964B;
    border: 3px solid #F7EDE2;
    box-shadow: 0 0 10px rgba(238, 150, 75, 0.35);
    cursor: pointer;
    flex-shrink: 0;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    padding: 0;
    min-width: 22px;
    min-height: 22px;
}

.section-nav__dot:hover,
.section-nav__dot:focus-visible {
    transform: scale(1.25);
    box-shadow: 0 0 22px rgba(238, 150, 75, 0.6);
}

/* The expanded panel - hidden by default, shown on hover/focus */
.section-nav__panel {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%) translateX(-6px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    background: #F7EDE2;
    border: 1px solid #E8DDD4;
    border-radius: 12px;
    padding: 14px 18px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    max-width: min(280px, calc(100vw - 80px));
}

.section-nav:hover .section-nav__panel,
.section-nav:focus-within .section-nav__panel {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(-50%) translateX(0);
}

.section-nav__panel .section-nav__title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(238, 150, 75, 0.5);
    padding: 0 0 6px 0;
    display: block;
    white-space: nowrap;
}

.section-nav__panel a {
    position: relative;
    display: block;
    padding: 6px 14px 6px 0;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.2;
    color: #6B7F82;
    text-decoration: none;
    border-right: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.section-nav__panel a:hover {
    color: #005B63;
}

.section-nav__panel a.is-active {
    color: #EE964B;
    font-weight: 700;
    border-right-color: #EE964B;
}

@media (max-width: 767.98px) {
    .section-nav {
        display: none;
    }
}

@media (max-width: 767.98px) {
    .navbar-actions {
        padding-left: 0;
        border-left: 0;
    }
}

/* Mobile hamburger menu */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: #005B63;
    padding: 8px;
    margin: -8px;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}

.hamburger-btn .material-symbols-outlined {
    font-size: 28px;
}

@media (max-width: 767.98px) {
    .hamburger-btn {
        display: inline-flex;
        margin-left: 12px;
    }
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    z-index: 100;
    background: #F7EDE2;
    border-left: 1px solid #E8DDD4;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    display: flex;
    flex-direction: column;
    padding: 80px 24px 24px;
    gap: 4px;
    overflow-y: auto;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.mobile-menu-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu a {
    display: block;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    color: #6B7F82;
    transition: color 0.15s, background-color 0.15s;
    min-height: 44px;
    display: flex;
    align-items: center;
}

.mobile-menu a:hover,
.mobile-menu a:active {
    color: #005B63;
    background: rgba(0, 91, 99, 0.06);
}

.mobile-menu .mobile-menu-actions {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid #E8DDD4;
    display: flex;
    gap: 12px;
}

.mobile-menu .mobile-menu-actions a {
    flex: 1;
    justify-content: center;
    gap: 8px;
    border: 1px solid #E8DDD4;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: 'JetBrains Mono', monospace;
}

#shader-canvas {
    display: block !important;
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
    pointer-events: none;
    z-index: 0;
}

/* Pulsanti */
.btn-press:active {
    transform: scale(0.95);
}

.transition-all {
    transition: all 0.2s ease-in-out;
}

.no-focus-outline:focus:not(:focus-visible) {
    outline: none !important;
    box-shadow: none !important;
}

.no-focus-outline:focus-visible {
    outline: 2px solid #EE964B;
    outline-offset: 2px;
    border-radius: 6px;
}

.github-btn {
    transition: background-color 0.3s ease-in-out, border-color 0.3s ease-in-out, color 0.3s ease-in-out;
    background-color: transparent;
    border: 1px solid rgba(0, 91, 99, 0.2);
    color: #005B63;
}

.github-btn:hover {
    background-color: #EE964B;
    border-color: #EE964B;
    color: #FFFFFF;
}

.github-btn:hover svg {
    fill: #FFFFFF;
}

summary:focus:not(:focus-visible) {
    outline: none !important;
    box-shadow: none !important;
}

summary:focus-visible {
    outline: 2px solid #EE964B;
    outline-offset: 2px;
    border-radius: 4px;
}

summary {
    cursor: pointer;
    user-select: none;
}

footer a {
    transition: color 0.2s ease-in-out;
}
footer a:hover {
    text-decoration: underline;
    text-underline-offset: 4px;
}

/* Sections */
section {
    background-color: #FFFFFF;
}

.hero-gradient {
    background: linear-gradient(to bottom, rgba(247, 237, 226, 0.3), rgba(255, 255, 255, 0.6), #FFFFFF);
}

.video-container {
    background-color: #F7EDE2;
    border: 1px solid rgba(232, 221, 212, 0.5);
    overflow: hidden;
}

.hud-overlay {
    position: absolute;
    bottom: 16px;
    left: 16px;
    z-index: 10;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: rgba(238, 150, 75, 0.7);
    background-color: rgba(247, 237, 226, 0.8);
    backdrop-filter: blur(4px);
    padding: 4px 8px;
    border: 1px solid rgba(238, 150, 75, 0.2);
}

footer {
    background-color: #F7EDE2 !important;
}

#shader-canvas {
    z-index: -1;
}

#datasets .glass-card {
    background: rgba(247, 237, 226, 0.6) !important;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(238, 150, 75, 0.15);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#datasets .glass-card:hover {
    transform: translateY(-10px);
    border-color: rgba(238, 150, 75, 0.4);
}

.code-container {
    background: #F0E8DE !important;
    border: 1px solid rgba(238, 150, 75, 0.2);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.1);
}

.text-primary-fixed {
    color: #EE964B !important;
}

.glass-card {
    background: linear-gradient(180deg, rgba(247, 237, 226, 0.6) 0%, rgba(255, 255, 255, 0.4) 100%);
    backdrop-filter: blur(20px);
    transition: all 0.5s ease;
}

.glass-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.text-gray-400 {
    color: #6B7F82;
}

/* Touch target sizing */
.navbar-icon-link:not(.navbar-icon-link--labeled) {
    min-width: 44px;
    min-height: 44px;
}

.btn-press {
    min-height: 44px;
    min-width: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.github-btn {
    min-height: 44px;
}

footer a:not(.footer-brand):not(.footer-cta) {
    display: inline-block;
    padding: 10px 0;
    min-height: 44px;
}

/* Terminal window: macOS style with traffic-light dots */
.terminal-window {
    position: relative;
    padding: 42px 18px 18px !important;
    border: 1px solid rgba(255, 255, 255, 0.06) !important;
    border-radius: 12px !important;
    background: #0D2D31 !important;
    color: #C8D6D8 !important;
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.7;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.04) !important;
    overflow-x: auto;
    scrollbar-color: #1F4A4E #0D2D31;
}

/* macOS traffic-light dots */
.terminal-window::before {
    content: "";
    position: absolute;
    top: 14px;
    left: 18px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #FF5F56;
    box-shadow: 16px 0 0 #FFBD2E, 32px 0 0 #27C93F;
    z-index: 1;
}

.terminal-window--card {
    display: flex;
    min-height: 224px;
    flex-direction: column;
}

.terminal-window--card .terminal-code {
    width: max-content;
    min-width: 100%;
    margin: auto 0;
}

.terminal-window [class*="text-primary-fixed/50"],
.terminal-window .terminal-comment {
    color: #6B969B !important;
}

.terminal-window [class*="text-primary-fixed/90"],
.terminal-window .terminal-highlight,
.terminal-window .terminal-string {
    color: #EE964B !important;
}

.terminal-window [class*="text-green-400"],
.terminal-window .terminal-prompt {
    color: #4EC9B0 !important;
}

.terminal-window [class*="text-on-surface-variant"],
.terminal-window .terminal-output {
    color: #8A9CA6 !important;
}

.terminal-window .terminal-keyword {
    color: #569CD6 !important;
}

/* Copy button on dark terminal */
.terminal-control {
    color: #8A9CA6 !important;
    background: #1A3E42 !important;
    border: 1px solid #2A5257;
}

.terminal-control:hover {
    color: #EE964B !important;
    border-color: #EE964B;
}

/* Copy-to-clipboard toast (shown by header.js copy-on-select). */
.copy-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: #005B63;
    color: #FFFFFF;
    padding: 10px 24px;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: none;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}
.copy-toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}