/* Pogu Chat UI */
/* Design: Cyber-futuristic digital space. Minimal, readable, energetic accents. */

:root {
    /* Colors - cyber space palette */
    --bg-primary: #0a0e17;
    --bg-secondary: #070b12;
    --bg-tertiary: #111827;
    --bg-input: #0d1220;

    --text-primary: #e0e6f0;
    --text-secondary: #8892a8;
    --text-muted: #4a5568;

    --accent: #00e5ff;
    --accent-soft: rgba(0, 229, 255, 0.12);
    --accent-hover: #33ecff;
    --accent-secondary: #a78bfa;
    --accent-secondary-soft: rgba(167, 139, 250, 0.12);

    --border: rgba(0, 229, 255, 0.05);
    --border-focus: rgba(0, 229, 255, 0.4);

    --user-bubble: rgba(0, 229, 255, 0.06);
    --user-bubble-border: rgba(0, 229, 255, 0.12);
    --ai-bubble: transparent;

    --success: #4ade80;
    --warning: #fbbf24;
    --error: #f87171;

    /* Glow */
    --glow-accent: 0 0 20px rgba(0, 229, 255, 0.15);
    --glow-accent-strong: 0 0 30px rgba(0, 229, 255, 0.25);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Sizing */
    --max-width: 720px;
    --header-height: 56px;
    --input-min-height: 48px;

    /* Animation */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: linear-gradient(
        135deg,
        #060a12 0%,
        #0a1020 25%,
        #0d0a1a 45%,
        #120a18 65%,
        #0a0f1e 85%,
        #080e18 100%
    );
    background-size: 100% 100%;
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
}

/* Nebula glow — top-left focal point */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    background: radial-gradient(
        ellipse at 12% 18%,
        rgba(0, 200, 255, 0.12) 0%,
        rgba(167, 139, 250, 0.07) 25%,
        rgba(200, 120, 255, 0.04) 40%,
        transparent 65%
    );
    pointer-events: none;
}

/* Particle canvas behind everything */
#particle-canvas {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    will-change: transform;
}

/* App container */
#app {
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
}

/* Chat container */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

/* Header */
.chat-header {
    height: var(--header-height);
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 14, 23, 0.4);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-emoji {
    font-size: 1.25rem;
}

.header-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--warning);
    transition: background var(--transition-normal);
    box-shadow: 0 0 8px rgba(251, 191, 36, 0.4);
}

.status-indicator.connected .status-dot {
    background: var(--success);
    box-shadow: 0 0 8px rgba(74, 222, 128, 0.4);
}

.status-indicator.error .status-dot {
    background: var(--error);
    box-shadow: 0 0 8px rgba(248, 113, 113, 0.4);
}

/* Messages area */
.messages-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.messages-spacer {
    flex: 1;
    min-height: var(--spacing-lg);
}

/* Message bubbles */
.message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    animation: messageIn 0.2s ease-out;
}

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

.message.user {
    align-self: flex-end;
}

.message.assistant {
    align-self: flex-start;
}

.message-content {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 16px;
    font-size: 0.9375rem;
    line-height: 1.55;
    word-wrap: break-word;
}

.message.user .message-content {
    position: relative;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.08) 0%, rgba(0, 200, 255, 0.04) 100%);
    border: 1px solid rgba(167, 139, 250, 0.10);
    border-radius: 20px;
    border-bottom-right-radius: 6px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 0 16px rgba(167, 139, 250, 0.06), 0 0 2px rgba(167, 139, 250, 0.04);
}

.message.assistant .message-content {
    position: relative;
    background: linear-gradient(145deg, rgba(200, 120, 255, 0.05) 0%, rgba(167, 139, 250, 0.03) 50%, transparent 100%);
    border: 1px solid rgba(200, 120, 255, 0.08);
    border-left-color: transparent;
    border-radius: 20px;
    border-bottom-left-radius: 6px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-lg);
    box-shadow: 0 0 20px rgba(200, 120, 255, 0.04), 0 0 4px rgba(200, 120, 255, 0.02);
    color: var(--text-primary);
}

.message.assistant .message-content::before {
    content: '';
    position: absolute;
    left: 0; top: 12px; bottom: 12px;
    width: 2px;
    border-radius: 1px;
    background: linear-gradient(180deg, transparent 0%, rgba(200, 120, 255, 0.25) 20%, rgba(200, 120, 255, 0.35) 50%, rgba(200, 120, 255, 0.25) 80%, transparent 100%);
    box-shadow: 0 0 8px rgba(200, 120, 255, 0.20);
    pointer-events: none;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) 0;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: typing 1.4s infinite both;
    opacity: 0.6;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-4px);
    }
}

/* Input area */
.input-container {
    padding: var(--spacing-md);
    background: rgba(10, 14, 23, 0.4);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-shrink: 0;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
    background: transparent;
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 0;
    padding: var(--spacing-sm) 0;
    transition: border-color var(--transition-fast);
}

.input-wrapper:focus-within {
    border-top-color: rgba(255, 255, 255, 0.12);
}

#message-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--text-primary);
    resize: none;
    min-height: 24px;
    max-height: 120px;
    padding: 10px 0;
    line-height: 1.4;
}

#message-input::placeholder {
    color: var(--text-muted);
}

.send-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(0, 229, 255, 0.2);
    background: transparent;
    color: var(--accent);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    flex-shrink: 0;
}

.send-button:hover:not(:disabled) {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
    transform: scale(1.05);
    box-shadow: var(--glow-accent);
}

.send-button:active:not(:disabled) {
    transform: scale(0.95);
}

.send-button:disabled {
    opacity: 0.2;
    cursor: not-allowed;
}

/* Markdown in messages */
.message-content p {
    margin-bottom: 0.75em;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: rgba(0, 229, 255, 0.08);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    color: var(--accent);
}

.message-content pre {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: 8px;
    overflow-x: auto;
    margin: var(--spacing-sm) 0;
    border: 1px solid var(--border);
}

.message-content pre code {
    background: transparent;
    padding: 0;
    color: var(--text-primary);
}

.message-content a {
    color: var(--accent);
    text-decoration: none;
}

.message-content a:hover {
    text-decoration: underline;
}

.message-content ul, .message-content ol {
    margin: 0.5em 0;
    padding-left: 1.5em;
}

.message-content li {
    margin-bottom: 0.25em;
}

/* ============================================
   AUTH GATE
   ============================================ */
.auth-gate {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    padding: var(--spacing-lg);
}

.auth-gate.hidden {
    display: none;
}

.auth-gate-content {
    max-width: 360px;
    width: 100%;
    text-align: center;
}

.auth-gate-glyph {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.6;
    font-family: var(--font-mono);
    color: var(--accent);
    letter-spacing: 0.3em;
}

.auth-gate h2 {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    letter-spacing: 0.05em;
}

.auth-gate-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-md);
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
    text-align: center;
    letter-spacing: 0.15em;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-gate-input:focus {
    border-color: var(--border-focus);
    box-shadow: var(--glow-accent);
}

.auth-gate-input::placeholder {
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.auth-gate-error {
    color: var(--error);
    font-size: 0.8rem;
    margin-top: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.auth-gate-error.visible {
    opacity: 1;
}

.auth-gate-lore {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 0.7rem;
    font-family: var(--font-mono);
    opacity: 0.3;
    letter-spacing: 0.2em;
    white-space: nowrap;
}

/* ============================================
   WORDLE
   ============================================ */
.wordle-gate {
    position: fixed;
    inset: 0;
    z-index: 150;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    background: var(--bg-primary);
    padding: var(--spacing-lg);
}

.wordle-gate.hidden {
    display: none;
}

.wordle-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-mono);
    text-transform: uppercase;
}

.wordle-grid {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: var(--spacing-lg);
}

.wordle-row {
    display: flex;
    gap: 6px;
}

.wordle-tile {
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    border: 2px solid var(--border);
    border-radius: 4px;
    text-transform: uppercase;
    transition: border-color var(--transition-fast), background var(--transition-fast), transform 0.1s ease;
}

.wordle-tile.filled {
    border-color: rgba(0, 229, 255, 0.25);
    animation: tilePop 0.1s ease;
}

@keyframes tilePop {
    50% { transform: scale(1.08); }
}

.wordle-tile.correct {
    background: #16a34a;
    border-color: #16a34a;
    color: white;
    animation: tileFlip 0.5s ease;
}

.wordle-tile.present {
    background: #ca8a04;
    border-color: #ca8a04;
    color: white;
    animation: tileFlip 0.5s ease;
}

.wordle-tile.absent {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    animation: tileFlip 0.5s ease;
}

@keyframes tileFlip {
    0% { transform: rotateX(0); }
    50% { transform: rotateX(90deg); }
    100% { transform: rotateX(0); }
}

.wordle-keyboard {
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: center;
}

.wordle-keyboard-row {
    display: flex;
    gap: 4px;
}

.wordle-key {
    min-width: 36px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-transform: uppercase;
    transition: background var(--transition-fast), transform 0.05s ease;
    padding: 0 8px;
}

.wordle-key:hover {
    background: rgba(255, 255, 255, 0.14);
}

.wordle-key:active {
    transform: scale(0.95);
}

.wordle-key.wide {
    min-width: 56px;
    font-size: 0.7rem;
}

.wordle-key.correct {
    background: #16a34a;
    color: white;
}

.wordle-key.present {
    background: #ca8a04;
    color: white;
}

.wordle-key.absent {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
}

.wordle-message {
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    min-height: 1.5em;
}

.wordle-continue {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-xl);
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: none;
    transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

.wordle-continue.visible {
    display: block;
}

.wordle-continue:hover {
    background: var(--accent-hover);
    box-shadow: var(--glow-accent);
}

/* ============================================
   ONBOARDING
   ============================================ */
.onboarding {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.onboarding.hidden {
    display: none;
}

.onboarding-content {
    max-width: 420px;
    min-height: 380px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: var(--spacing-xl);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 0 24px rgba(255, 255, 255, 0.03), 0 0 4px rgba(255, 255, 255, 0.02);
}

.onboarding h1 {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.onboarding-intro {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.onboarding-lore {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    opacity: 0.7;
}

/* Onboarding steps */
.onboarding-step {
    text-align: left;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.45;
}

.onboarding-step strong {
    color: rgba(255, 255, 255, 0.85);
    margin-right: 6px;
}

.onboarding-step.hidden {
    display: none;
}

.onboarding-step label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.onboarding-step input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: var(--spacing-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.onboarding-step input:focus {
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.08);
}

.onboarding-step input::placeholder {
    color: var(--text-muted);
}

.onboarding-checklist {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.onboarding-check-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-left: 2px solid rgba(255, 255, 255, 0.10);
    padding-left: 12px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 0 8px 8px 0;
    margin-bottom: 4px;
}

.onboarding-check-icon {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.75rem;
    margin-top: 2px;
    flex-shrink: 0;
    font-family: var(--font-mono);
}

.onboarding-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.onboarding-button {
    flex: 1;
    padding: var(--spacing-md);
    border-radius: 12px;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.onboarding-button.primary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.85);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9rem;
}

.onboarding-button.primary:hover {
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.08);
}

.onboarding-button.secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.onboarding-button.secondary:hover {
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

.onboarding-close {
    margin-top: var(--spacing-md);
    width: 100%;
    padding: var(--spacing-md);
    border-radius: 16px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.85);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.onboarding-close:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-1px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.08);
}

/* Onboarding password error */
.onboarding-pw-error {
    color: #f87171;
    font-size: 0.8rem;
    margin-top: var(--spacing-sm);
}

/* Onboarding progress dots */
.onboarding-progress {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}
.onboarding-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    opacity: 0.3;
    transition: opacity 0.3s ease, background 0.3s ease, width 0.3s ease, border-radius 0.3s ease;
}
.onboarding-dot.active {
    width: 24px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.9);
    opacity: 1;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
}

/* ============================================
   SCROLLBAR (hidden — trackpad/wheel only)
   ============================================ */
.messages-container::-webkit-scrollbar {
    display: none;
}

/* ============================================
   MOBILE GATE
   ============================================ */
.mobile-gate {
    position: fixed; inset: 0; z-index: 250;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 1rem;
    letter-spacing: 0.1em;
    text-align: center;
    padding: var(--spacing-lg);
}
.mobile-gate-sub {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: var(--spacing-sm);
}
@media (min-width: 769px) {
    .mobile-gate { display: none; }
}

/* ============================================
   LIMINAL GATE
   ============================================ */
.liminal-gate {
    position: fixed; inset: 0; z-index: 175;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-primary);
}
.liminal-gate.hidden { display: none; }
.liminal-text {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    opacity: 0;
    animation: liminalFadeIn 2s ease-out 0.5s forwards;
}
@keyframes liminalFadeIn {
    from { opacity: 0; }
    to   { opacity: 0.7; }
}

/* ============================================
   PRE-CHAT HIDDEN UTILITY
   ============================================ */
.pre-chat-hidden {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}
.pre-chat-reveal {
    transition: opacity 0.6s ease, visibility 0.6s ease;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
}

/* ============================================
   TRANSITION ANIMATIONS
   ============================================ */

/* Unified gate exit (simple fade) */
.gate-exit {
    animation: gateExit 0.5s ease-out forwards;
    pointer-events: none;
}
@keyframes gateExit {
    from { opacity: 1; }
    to   { opacity: 0; }
}

/* Unified gate enter (fade from dark) */
.gate-enter {
    animation: gateEnter 0.8s ease-out forwards;
}
@keyframes gateEnter {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* Wordle grid shake on wrong guess */
.wordle-grid.shake {
    animation: gridShake 0.5s ease;
}
@keyframes gridShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* Green tile glow on correct letter */
.wordle-tile.correct {
    box-shadow: 0 0 12px rgba(22, 163, 74, 0.4);
}

/* Chat emerge after onboarding */
#chat-container.entering {
    animation: chatEmerge 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes chatEmerge {
    0%   { opacity: 0; transform: scale(0.97); }
    40%  { opacity: 0.5; transform: scale(0.99); }
    100% { opacity: 1; transform: scale(1); }
}

/* ============================================
   MOBILE
   ============================================ */
@media (max-width: 480px) {
    :root {
        --spacing-md: 12px;
        --header-height: 52px;
    }

    .message {
        max-width: 90%;
    }

    .chat-header {
        padding: 0 var(--spacing-sm);
    }

    .wordle-tile {
        width: 48px;
        height: 48px;
        font-size: 1.25rem;
    }

    .wordle-key {
        min-width: 28px;
        height: 42px;
        font-size: 0.7rem;
    }
}

/* Safe area for notched phones */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .input-container {
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}