:root {
    --bg-dark: #0a0f1d;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #38bdf8;
    --accent-glow: rgba(56, 189, 248, 0.15);
    --card-bg: rgba(30, 41, 59, 0.4);
    --card-border: rgba(255, 255, 255, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Ambient Living Background Animation */
body::before {
    content: '';
    position: fixed;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle at 30% 40%, rgba(14, 116, 144, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 70% 60%, rgba(56, 189, 248, 0.1) 0%, transparent 50%);
    z-index: -1;
    transform: translate(var(--scroll-x, 0px), var(--scroll-y, 0px));
    will-change: transform;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Second aurora layer */
body::after {
    content: '';
    position: fixed;
    inset: -30%;
    background: radial-gradient(circle at 20% 20%, rgba(56, 189, 248, 0.16) 0%, transparent 45%),
                radial-gradient(circle at 80% 30%, rgba(45, 212, 191, 0.14) 0%, transparent 45%),
                radial-gradient(circle at 50% 80%, rgba(99, 102, 241, 0.12) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
    background-size: 180% 180%;
    animation: auroraDrift 22s ease-in-out infinite alternate;
    will-change: background-position, transform;
}

/* Soft glow following cursor */
#cursor-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.10) 0%, transparent 70%);
    transform: translate3d(var(--glow-x, 50vw), var(--glow-y, 50vh), 0) translate(-50%, -50%);
    z-index: -1;
    pointer-events: none;
    transition: opacity 0.4s ease;
    opacity: 0;
    will-change: transform;
}

body.glow-active #cursor-glow {
    opacity: 1;
}

/* Rising bubble particles canvas */
#bubble-field {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

@keyframes auroraDrift {
    0% {
        background-position: 0% 0%;
        transform: rotate(0deg) scale(1);
    }
    50% {
        background-position: 60% 40%;
        transform: rotate(2deg) scale(1.05);
    }
    100% {
        background-position: 100% 100%;
        transform: rotate(-2deg) scale(1.02);
    }
}

@media (prefers-reduced-motion: reduce) {
    body::after {
        animation: none;
    }
    #bubble-field,
    #cursor-glow {
        display: none;
    }
}

/* Scroll progress bar */
#scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: var(--scroll-progress, 0%);
    background: linear-gradient(to right, #0e7490, var(--accent), #7dd3fc);
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.6);
    z-index: 1000;
    transition: width 0.1s linear;
}

/* Scroll cue chevron */
.scroll-cue {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    cursor: pointer;
    margin-top: 1.5rem;
    letter-spacing: 0.03em;
    transition: color 0.3s ease;
    width: 100%;
}

.scroll-cue:hover {
    color: var(--accent);
}

.scroll-cue-arrow {
    font-size: 1.4rem;
    line-height: 1;
    animation: chevronBounce 1.8s ease-in-out infinite;
}

@keyframes chevronBounce {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(6px); opacity: 1; }
}

/* Back to top button */
#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-main);
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px) rotate(0deg);
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s;
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    transform: translateY(-4px) rotate(-8deg);
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3), 0 0 20px var(--accent-glow);
}

/* Visible focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible,
.card:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
    box-shadow: 0 0 0 6px rgba(56, 189, 248, 0.15);
    border-radius: 4px;
}

/* Suite search box */
.suite-search-wrap {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.suite-search {
    width: 100%;
    max-width: 420px;
    padding: 0.85rem 1.25rem;
    border-radius: 100px;
    border: 1px solid var(--card-border);
    background: rgba(30, 41, 59, 0.4);
    color: var(--text-main);
    font-size: 0.95rem;
    font-family: inherit;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.suite-search::placeholder {
    color: var(--text-muted);
}

.suite-search:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.5);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}

/* Suite chip filter */
.suite-chips {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin: 0.25rem 0 0.5rem 0;
}

.chip {
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    background: rgba(30, 41, 59, 0.35);
    border: 1px solid var(--card-border);
    border-radius: 100px;
    padding: 0.4rem 0.95rem;
    cursor: pointer;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
}

.chip:hover {
    color: var(--text-main);
    border-color: rgba(56, 189, 248, 0.3);
}

.chip.is-active {
    color: var(--bg-dark);
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 18px var(--accent-glow);
}

.chip.is-active:hover {
    color: var(--bg-dark);
    background: #7dd3fc;
    border-color: #7dd3fc;
}

.chip:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.suite-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    padding: 2rem 0;
}

.card.filtered-out {
    display: none;
}

/* Card 3D Perspective */
.suite-grid {
    perspective: 1200px;
}

.card {
    transform-style: preserve-3d;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.5s ease,
                box-shadow 0.5s ease;
}

/* Ambient Audio Toggle */
#audio-toggle-wrap {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    z-index: 500;
}

#yt-audio-player {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

#audio-toggle {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-main);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

#audio-toggle:hover {
    transform: scale(1.08);
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 0 20px var(--accent-glow);
}

#audio-toggle[aria-pressed="true"] {
    border-color: rgba(56, 189, 248, 0.6);
    color: var(--accent);
}

/* Click Bite Feedback */
.card.bite-active {
    animation: cardBite 0.4s ease;
}

@keyframes cardBite {
    0% { transform: scale(1); }
    35% { transform: scale(0.96); }
    60% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.bite-mark {
    position: absolute;
    font-size: 1.6rem;
    pointer-events: none;
    z-index: 5;
    animation: biteMarkPop 0.6s ease forwards;
}

@keyframes biteMarkPop {
    0% { opacity: 0; transform: scale(0.4) rotate(-10deg); }
    40% { opacity: 1; transform: scale(1.1) rotate(4deg); }
    100% { opacity: 0; transform: scale(1.3) rotate(8deg); }
}

/* Swarm Easter Egg */
#shark-swarm {
    position: fixed;
    inset: 0;
    z-index: 9998;
    pointer-events: none;
    overflow: hidden;
}

.swarm-shark {
    position: absolute;
    font-size: 1.8rem;
    opacity: 0.9;
    animation: swarmSwim linear forwards;
    transform: scaleX(-1);
}

@keyframes swarmSwim {
    from { transform: scaleX(-1) translateX(0); }
    to { transform: scaleX(-1) translateX(calc(100vw + 100px)); }
}

@media (prefers-reduced-motion: reduce) {
    .scroll-cue-arrow,
    .card.bite-active,
    .bite-mark,
    .swarm-shark {
        animation: none;
    }
}

/* Header Navigation */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 8%;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background: rgba(10, 15, 29, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    animation: slideDown 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.02);
}

.logo span {
    color: var(--accent);
}

/* Ambient AI Pulse Animation */
.logo .ai-glow {
    color: var(--accent);
    position: relative;
    display: inline-block;
    text-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
    animation: aiPulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    will-change: opacity, text-shadow;
}

.logo:hover .ai-glow {
    animation: aiCompute 1s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    color: #fff;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    margin-left: 2.5rem;
    position: relative;
    padding: 0.2rem 0;
    transition: color 0.3s ease;
    display: inline-block;
}

nav a:hover {
    color: var(--text-main);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 8rem 2rem 4rem 2rem;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.badge {
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--accent);
    padding: 0.5rem 1.2rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
    animation: fadeIn 1s ease-out;
    cursor: pointer;
    user-select: none;
    transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.badge:hover {
    background: rgba(56, 189, 248, 0.2);
    transform: scale(1.03);
}

.badge.shark-active {
    background: rgba(244, 63, 94, 0.15);
    border-color: rgba(244, 63, 94, 0.4);
    color: #f43f5e;
}

.badge.shark-active:hover {
    background: rgba(244, 63, 94, 0.25);
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    animation: slideUp 1s cubic-bezier(0.16, 1, 0.3, 1);
}

h1 span {
    background: linear-gradient(to right, #fff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 3rem;
    animation: slideUp 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Interactive Suite Grid */
.suite-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1100px;
    padding: 4rem 2rem;
    margin: 0 auto;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), 
                border-color 0.5s ease, 
                box-shadow 0.5s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(350px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(56, 189, 248, 0.08), transparent 60%);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.card:hover::before {
    opacity: 1;
}

.card:hover {
    transform: translateY(-6px) scale(1.01);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px var(--accent-glow);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
    display: inline-block;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), filter 0.3s ease;
}

.card:hover .card-icon {
    transform: scale(1.2) rotate(5deg);
}

.card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
    transition: color 0.3s ease;
}

.card:hover h3 {
    color: var(--accent);
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Custom Dynamic Shark Cursor Layout */
.shark-cursor-mode, .shark-cursor-mode * {
    cursor: none !important;
}

#custom-shark-cursor {
    position: fixed;
    top: 0;
    left: 0;
    font-size: 2.5rem;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    display: none;
    user-select: none;
    will-change: transform;
}

.shark-cursor-mode #custom-shark-cursor {
    display: block;
}

/* Black & White Emojis with Hover Color Effect */
.card-icon,
#custom-shark-cursor,
.swarm-shark,
.fin,
.audio-icon,
.scroll-cue-arrow {
    filter: grayscale(100%);
    transition: filter 0.3s ease, transform 0.3s ease;
}

.card-icon:hover,
#custom-shark-cursor:hover,
.swarm-shark:hover,
.fin:hover,
.audio-icon:hover,
.scroll-cue-arrow:hover,
.card:hover .card-icon {
    filter: grayscale(0%);
}

/* Footer */
footer {
    text-align: center;
    padding: 4rem 2rem;
    color: rgba(148, 163, 184, 0.4);
    font-size: 0.85rem;
    border-top: 1px solid var(--card-border);
    max-width: 1100px;
    margin: 0 auto;
}

/* Keyframe Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes aiPulse {
    0%, 100% {
        opacity: 0.8;
        text-shadow: 0 0 8px rgba(56, 189, 248, 0.1);
        transform: scale(1);
    }
    50% {
        opacity: 1;
        text-shadow: 0 0 18px rgba(56, 189, 248, 0.6), 0 0 28px rgba(56, 189, 248, 0.2);
        transform: scale(1.03);
    }
}

@keyframes aiCompute {
    0%, 100% {
        text-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
    }
    50% {
        text-shadow: 0 0 22px rgba(56, 189, 248, 0.8), 0 0 30px rgba(56, 189, 248, 0.4);
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    header { padding: 1.5rem 5%; }
    nav { display: none; }
}

.hero-title {
  color: #f8fafc;
  font-family: system-ui, sans-serif;
  font-size: 3.5rem;
  font-weight: 800;
}

.shimmer-word {
  background: linear-gradient(
    to right,
    #38bdf8 20%,
    #ffffff 40%,
    #ffffff 60%,
    #38bdf8 80%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: textShimmer 3.5s linear infinite;
}

@keyframes textShimmer {
  0% {
    background-position: 200% center;
  }
  100% {
    background-position: -200% center;
  }
}

/* ============================================================
   Feature: Keyboard Shortcuts Overlay (#5)
   ============================================================ */
.overlay {
    position: fixed;
    inset: 0;
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: rgba(10, 15, 29, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: overlayFadeIn 0.18s ease-out;
}

.overlay[hidden] {
    display: none;
}

@keyframes overlayFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.overlay-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem 2.25rem;
    max-width: 480px;
    width: 100%;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 30px var(--accent-glow);
    animation: overlayCardIn 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes overlayCardIn {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.overlay-card h2 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
    color: var(--text-main);
}

.overlay-sub {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.shortcut-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}

.shortcut-list li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-main);
    font-size: 0.95rem;
}

.shortcut-list li span {
    color: var(--text-muted);
}

.shortcut-list .shortcut-list-kbd-group {
    display: inline-flex;
    gap: 0.3rem;
}

.overlay kbd {
    display: inline-block;
    min-width: 1.6rem;
    text-align: center;
    padding: 0.15rem 0.5rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-main);
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid var(--card-border);
    border-bottom-width: 2px;
    border-radius: 6px;
    line-height: 1.2;
}

.overlay-close {
    background: var(--accent);
    color: var(--bg-dark);
    border: none;
    border-radius: 100px;
    padding: 0.55rem 1.4rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.overlay-close:hover {
    background: #7dd3fc;
    transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
    .overlay,
    .overlay-card {
        animation: none;
    }
}

/* ============================================================
   Feature: Card Sonar Ping (#8)
   ============================================================ */
.sonar-ping {
    position: absolute;
    inset: 0;
    pointer-events: none;
    border: 1px solid var(--accent);
    border-radius: inherit;
    opacity: 0;
    transform: scale(0);
    z-index: 2;
    animation: sonarPing 0.7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes sonarPing {
    0%   { opacity: 0.6; transform: scale(0); }
    100% { opacity: 0;   transform: scale(1.4); }
}

@media (prefers-reduced-motion: reduce) {
    .sonar-ping {
        animation: none;
        display: none;
    }
}

/* ============================================================
   Feature: SharkBoard Pop-up Panel
   ============================================================ */

/* SharkBoard Toggle Button */
.sharkboard-toggle {
    position: fixed;
    bottom: 2rem;
    right: 5.5rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-main);
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.sharkboard-toggle:hover {
    transform: scale(1.08);
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 0 20px var(--accent-glow);
}

.sharkboard-icon {
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.sharkboard-toggle:hover .sharkboard-icon {
    filter: grayscale(0%);
}

/* SharkBoard Panel */
.sharkboard-panel {
    position: fixed;
    right: 0;
    top: 0;
    width: min(420px, 100vw);
    height: 100vh;
    background: rgba(10, 15, 29, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-left: 1px solid var(--card-border);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.4);
    z-index: 8500;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.sharkboard-panel:not([hidden]) {
    transform: translateX(0);
}

.sharkboard-panel[hidden] {
    display: none;
}

.sharkboard-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--card-border);
    position: relative;
}

.sharkboard-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-main);
}

.sharkboard-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

.sharkboard-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.8rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    transition: background 0.2s ease, color 0.2s ease;
}

.sharkboard-close:hover {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent);
}

.sharkboard-content {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sharkboard-section {
    padding: 1.5rem;
    border-bottom: 1px solid var(--card-border);
}

.sharkboard-section h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-main);
    letter-spacing: 0.02em;
}

.sharkboard-textarea {
    width: 100%;
    height: 120px;
    padding: 0.75rem;
    border: 1px solid var(--card-border);
    background: rgba(30, 41, 59, 0.4);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 0.9rem;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.sharkboard-textarea::placeholder {
    color: var(--text-muted);
}

.sharkboard-textarea:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.5);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.sharkboard-input-info {
    display: flex;
    justify-content: flex-end;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.sharkboard-submit {
    width: 100%;
    padding: 0.65rem 1rem;
    margin-top: 1rem;
    background: var(--accent);
    color: var(--bg-dark);
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.sharkboard-submit:hover {
    background: #7dd3fc;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}

.sharkboard-submit:active {
    transform: translateY(0);
}

.sharkboard-posts {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sharkboard-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem 1rem;
    font-size: 0.9rem;
}

.sharkboard-post {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 1rem;
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.sharkboard-post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.sharkboard-post-author {
    font-weight: 600;
    color: var(--accent);
}

.sharkboard-post-content {
    color: var(--text-main);
    font-size: 0.9rem;
    line-height: 1.5;
    word-wrap: break-word;
    margin-bottom: 0.75rem;
}

.sharkboard-post-actions {
    display: flex;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.sharkboard-post-action {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: color 0.2s ease, background 0.2s ease;
}

.sharkboard-post-action:hover {
    color: var(--accent);
    background: rgba(56, 189, 248, 0.1);
}

@media (max-width: 640px) {
    .sharkboard-panel {
        width: 100vw;
    }
    
    .sharkboard-toggle {
        bottom: 1rem;
        right: 4.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .sharkboard-panel {
        transition: none;
    }
    
    .sharkboard-post {
        animation: none;
    }
}