/* ===== CSS Custom Properties (Claude Theme) ===== */
:root {
    --bg-primary: #FAF9F5;
    --bg-surface: #FFFFFF;
    --text-primary: #1A1A19;
    --text-secondary: #5A5A58;
    --text-muted: #8A8A88;
    --accent: #D97757;
    --accent-hover: #C4654A;
    --accent-light: #F5E6DF;
    --border: #E5E3DB;
    --border-focus: #D97757;
    --shadow: rgba(0, 0, 0, 0.06);
    --radius: 12px;
    --radius-sm: 8px;
    --font-serif: Georgia, 'Times New Roman', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    --transition: 200ms ease;
}

/* ===== Dark Mode ===== */
[data-theme="dark"] {
        --bg-primary: #1A1A19;
        --bg-surface: #242422;
        --text-primary: #F0EFE9;
        --text-secondary: #A8A8A5;
        --text-muted: #6E6E6B;
        --accent: #E08A6D;
        --accent-hover: #D97757;
        --accent-light: #3D2A22;
        --border: #3A3A37;
        --border-focus: #E08A6D;
        --shadow: rgba(0, 0, 0, 0.3);
    }

    .btn-copy:hover {
        background-color: #4D3328;
    }

    .usage-counter.exhausted {
        background: #3D2218;
    }

    .share-x:hover { border-color: #E0E0E0; color: #E0E0E0; }

    .fake-cursor {
        filter: drop-shadow(1px 2px 2px rgba(0,0,0,0.4)) invert(1);
    }
}

/* ===== Theme Toggle ===== */
.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: 1.5px solid var(--border);
    border-radius: 50%;
    background: var(--bg-surface);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: border-color var(--transition), color var(--transition), background-color var(--transition);
    z-index: 100;
}

.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun { display: none; }

[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

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

html, body {
    height: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== Layout ===== */
.container {
    max-width: 620px;
    margin: 0 auto;
    padding: 60px 24px 40px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hidden {
    display: none !important;
}

/* ===== Typography ===== */
.title {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    font-weight: 400;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.anim-title {
    margin-bottom: 40px;
}

.subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 40px;
    max-width: 480px;
    line-height: 1.7;
}

/* ===== Search Box ===== */
.search-wrapper {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.search-box {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    font-family: var(--font-sans);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-surface);
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

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

.search-box:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-light);
}

/* ===== Buttons ===== */
.btn {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition), transform 100ms ease;
    user-select: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    padding: 12px 28px;
    background-color: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-copy {
    padding: 10px 18px;
    background-color: var(--accent-light);
    color: var(--accent);
    font-weight: 600;
    flex-shrink: 0;
}

.btn-copy:hover {
    background-color: #ECDAD0;
}

/* ===== Character Selector ===== */
.character-selector {
    width: 100%;
    margin-top: 4px;
}

.character-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    text-align: center;
}

.character-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    width: 100%;
}

.char-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 4px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    cursor: pointer;
    transition: border-color var(--transition), background-color var(--transition), transform 100ms ease;
    font-family: var(--font-sans);
}

.char-btn:hover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.char-btn.selected {
    border-color: var(--accent);
    background: var(--accent-light);
    box-shadow: 0 0 0 2px var(--accent-light);
}

.char-btn:active {
    transform: scale(0.95);
}

svg.char-icon {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.char-btn.selected svg.char-icon {
    color: var(--accent);
}

.char-btn:hover svg.char-icon {
    color: var(--accent);
}

.char-name {
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.2;
}

.char-btn.selected .char-name {
    color: var(--accent);
    font-weight: 600;
}

/* ===== Surprise Toggle ===== */
.surprise-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
    user-select: none;
}

.surprise-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* ===== Share Buttons ===== */
.share-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1.5px solid var(--border);
    border-radius: 50%;
    background: var(--bg-surface);
    cursor: pointer;
    transition: border-color var(--transition), background-color var(--transition), transform 100ms ease, color var(--transition);
    color: var(--text-secondary);
}

.share-btn:hover {
    transform: scale(1.1);
}

.share-btn:active {
    transform: scale(0.95);
}

.share-x:hover { border-color: #000; color: #000; }
.share-whatsapp:hover { border-color: #25D366; color: #25D366; }
.share-telegram:hover { border-color: #0088cc; color: #0088cc; }
.share-reddit:hover { border-color: #FF4500; color: #FF4500; }
.share-linkedin:hover { border-color: #0A66C2; color: #0A66C2; }
.share-email:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Result Area ===== */
.result-area {
    width: 100%;
    margin-top: 32px;
    animation: fadeSlideIn 300ms ease forwards;
}

.result-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    text-align: center;
}

.link-row {
    display: flex;
    gap: 8px;
    width: 100%;
}

.link-display {
    flex: 1;
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-primary);
    outline: none;
    cursor: text;
}

.link-display:focus {
    border-color: var(--border-focus);
}

.action-row {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

/* ===== Toast ===== */
.toast {
    text-align: center;
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
    animation: fadeIn 200ms ease;
}

/* ===== Footer ===== */
.footer {
    margin-top: auto;
    padding-top: 40px;
    font-size: 0.85rem;
}

.footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition);
}

.footer a:hover {
    color: var(--accent);
}

/* ===== Mock Interface (Animation Mode) ===== */
.mock-interface {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

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

.mock-search {
    cursor: default;
    caret-color: var(--accent);
}

.mock-search.typing {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.mock-btn {
    min-width: 140px;
}

.mock-btn.pressed {
    background-color: var(--accent-hover);
    transform: scale(0.95);
}

/* ===== Snarky Message ===== */
.snarky {
    margin-top: 36px;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--text-primary);
    text-align: center;
    opacity: 0;
    animation: none;
}

.snarky.show {
    display: block !important;
    animation: fadeIn 600ms ease forwards;
}

/* ===== Claude Response Area ===== */
.response-area {
    width: 100%;
    margin-top: 24px;
    opacity: 0;
    animation: none;
}

.response-area.show {
    display: block !important;
    animation: fadeIn 600ms ease forwards;
}

.response-header {
    margin-bottom: 8px;
}

.response-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.response-content {
    background: var(--bg-surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-primary);
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
    min-height: 60px;
}

.response-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--accent);
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}

.response-cursor.done {
    display: none;
}

.response-error {
    color: var(--accent);
    font-style: italic;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* ===== Redirect Area ===== */
.redirect-area {
    margin-top: 24px;
    text-align: center;
    opacity: 0;
    animation: none;
}

.redirect-area.show {
    display: block !important;
    animation: fadeIn 600ms ease forwards;
}

.btn-go {
    padding: 14px 32px;
    font-size: 1.05rem;
}

.redirect-hint {
    margin-top: 10px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Usage Counter ===== */
.usage-counter {
    margin-top: 16px;
    padding: 8px 16px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    border-radius: var(--radius-sm);
    background: var(--accent-light);
}

.usage-counter.warning {
    color: var(--accent);
    font-weight: 500;
}

.usage-counter.exhausted {
    color: var(--accent-hover);
    font-weight: 600;
    background: #F5E0D8;
}

/* ===== Fake Cursor ===== */
.fake-cursor {
    position: fixed;
    width: 24px;
    height: 24px;
    pointer-events: none;
    z-index: 9999;
    transition: none;
    filter: drop-shadow(1px 2px 2px rgba(0,0,0,0.15));
}

.fake-cursor.moving {
    transition: left 700ms cubic-bezier(0.25, 0.1, 0.25, 1),
                top 700ms cubic-bezier(0.25, 0.1, 0.25, 1);
}

.fake-cursor.clicking {
    animation: cursorClick 200ms ease;
}

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

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

@keyframes cursorClick {
    0% { transform: scale(1); }
    50% { transform: scale(0.85); }
    100% { transform: scale(1); }
}

/* ===== Accessibility ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (prefers-reduced-motion: reduce) {
    .fake-cursor {
        display: none !important;
    }

    body.animating,
    body.animating * {
        cursor: auto !important;
    }

    .fake-cursor.moving {
        transition: none !important;
    }

    .snarky.show,
    .redirect-area.show {
        animation: none !important;
        opacity: 1;
    }
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
    .container {
        padding: 40px 16px 32px;
    }

    .title {
        font-size: 1.8rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }

    .search-box {
        padding: 12px 14px;
        font-size: 0.95rem;
    }

    .link-row {
        flex-direction: column;
    }

    .btn-copy {
        width: 100%;
    }

    .character-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Hide real cursor during animation */
body.animating {
    cursor: none;
}

body.animating * {
    cursor: none !important;
}

/* Touch device: skip cursor, show tap effect */
@media (hover: none) and (pointer: coarse) {
    .fake-cursor {
        display: none !important;
    }

    body.animating,
    body.animating * {
        cursor: auto !important;
    }

    .mock-btn.tap-flash {
        animation: tapFlash 300ms ease;
    }
}

@keyframes tapFlash {
    0% { background-color: var(--accent); }
    50% { background-color: var(--accent-light); }
    100% { background-color: var(--accent-hover); }
}