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

:root {
    --bg:            #06060f;
    --surface:       rgba(12, 12, 30, 0.85);
    --surface-solid: #0c0c1e;
    --border:        rgba(0, 240, 255, 0.1);
    --border-focus:  rgba(0, 240, 255, 0.4);
    --text:          #d0d0e8;
    --text-bright:   #f0f0ff;
    --text-dim:      #55557a;
    --accent:        #00f0ff;
    --accent-glow:   rgba(0, 240, 255, 0.25);
    --danger:        #ff2d55;
    --danger-glow:   rgba(255, 45, 85, 0.25);
    --success:       #00ff88;
    --success-glow:  rgba(0, 255, 136, 0.25);
    --warning:       #ffaa00;
    --warning-glow:  rgba(255, 170, 0, 0.25);
    --mono:          'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --sans:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius:        8px;
}

html { font-size: 15px; }

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ── Ambient background ── */
.grid-bg {
    position: fixed; inset: 0;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: -2;
}
.scanlines {
    position: fixed; inset: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.02) 0px,
        rgba(0, 0, 0, 0.02) 1px,
        transparent 1px,
        transparent 3px
    );
    pointer-events: none;
    z-index: 9999;
}

/* ── Particle canvas ── */
.particles-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ── Layout ── */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.5rem 3rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── Header ── */
.header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.logo {
    font-family: var(--mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-shadow: 0 0 20px var(--accent-glow);
    animation: logoGlow 4s ease-in-out infinite;
}
@keyframes logoGlow {
    0%, 100% { text-shadow: 0 0 20px var(--accent-glow); }
    50%      { text-shadow: 0 0 30px var(--accent-glow), 0 0 60px rgba(0, 240, 255, 0.15); }
}
.logo-bracket { color: var(--text-dim); font-weight: 400; }
.tagline {
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* ── Main ── */
main { flex: 1; }

/* ── Panel ── */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.panel-success { border-color: rgba(0, 255, 136, 0.2); }
.panel-danger  { border-color: rgba(255, 45, 85, 0.2); }
.panel-warning { border-color: rgba(255, 170, 0, 0.2); }

.panel-title {
    font-family: var(--mono);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 1rem;
    letter-spacing: 0.04em;
}
.panel-text {
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.status-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1;
}
.panel-success .status-icon { color: var(--success); text-shadow: 0 0 30px var(--success-glow); }
.panel-danger  .status-icon { color: var(--danger);  text-shadow: 0 0 30px var(--danger-glow);  }
.panel-warning .status-icon { color: var(--warning); text-shadow: 0 0 30px var(--warning-glow); }

.pulse { animation: pulse 2s ease-in-out infinite; }
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.4; }
}

/* ── Forms ── */
.label {
    display: block;
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-dim);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.label-hint {
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: none;
    opacity: 0.6;
}
.form-group       { margin-bottom: 1.5rem; }
.form-row         { display: flex; gap: 1rem; }
.form-row-options { flex-wrap: wrap; }
.flex-1           { flex: 1; min-width: 200px; }

.textarea, .input, .select {
    width: 100%;
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--text-bright);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    caret-color: var(--accent);
}
.textarea:focus, .input:focus, .select:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow), inset 0 0 20px rgba(0, 240, 255, 0.03);
}
.textarea {
    resize: vertical;
    min-height: 200px;
    line-height: 1.5;
}
.textarea::placeholder { color: var(--text-dim); }

.select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2355557a' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
    padding-right: 2.5rem;
}
.select option { background: var(--surface-solid); color: var(--text); }

/* ── Password input ── */
.password-input-wrap {
    position: relative;
}
.password-input-wrap .input {
    padding-right: 3rem;
}
.btn-inside {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.4rem;
    border: none;
}

/* ── Input group (slug) ── */
.input-group {
    display: flex;
    align-items: stretch;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.input-group:focus-within {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.input-prefix {
    display: flex;
    align-items: center;
    padding: 0 0.75rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    background: rgba(0, 0, 0, 0.3);
    border-right: 1px solid var(--border);
    white-space: nowrap;
    user-select: none;
}
.input-group .input {
    border: none;
    border-radius: 0;
    background: rgba(0, 0, 0, 0.4);
    min-width: 0;
}
.input-group .input:focus { box-shadow: none; }
.input-group .btn {
    border: none;
    border-left: 1px solid var(--border);
    border-radius: 0;
    padding: 0 0.9rem;
    font-size: 1.1rem;
    background: rgba(0, 0, 0, 0.3);
}

/* ── Mode selector ── */
.mode-selector {
    display: flex;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.mode-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.7rem 0.5rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--text-dim);
    background: rgba(0, 0, 0, 0.3);
    border: none;
    border-right: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
}
.mode-btn:last-child { border-right: none; }
.mode-btn:hover { color: var(--text); background: rgba(0, 240, 255, 0.05); }
.mode-btn.active {
    color: var(--accent);
    background: rgba(0, 240, 255, 0.08);
    box-shadow: inset 0 -2px 0 var(--accent);
}
.mode-icon { font-size: 1rem; line-height: 1; }

/* ── Toggle switch ── */
.toggle-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.toggle-label {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text);
    letter-spacing: 0.04em;
}
.toggle-hint {
    width: 100%;
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
    padding-left: 3.5rem;
}
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.3s;
}
.toggle-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background: var(--text-dim);
    border-radius: 50%;
    transition: all 0.3s;
}
.toggle-switch input:checked + .toggle-slider {
    background: rgba(0, 240, 255, 0.15);
    border-color: var(--accent);
}
.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(20px);
    background: var(--accent);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--accent);
    background: transparent;
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    padding: 0.65rem 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: 0 0 15px var(--accent-glow);
}
.btn:active { transform: scale(0.97); }
.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
}

.btn-primary {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: 0 0 15px var(--accent-glow);
}
.btn-primary:hover {
    background: rgba(0, 240, 255, 0.2);
    box-shadow: 0 0 25px var(--accent-glow), 0 0 50px rgba(0, 240, 255, 0.1);
}

.btn-secondary {
    color: var(--text-dim);
    border-color: var(--border);
}
.btn-secondary:hover {
    color: var(--text);
    border-color: var(--text-dim);
    background: rgba(255, 255, 255, 0.03);
    box-shadow: none;
}

.btn-danger {
    color: var(--danger);
    border-color: var(--danger);
}
.btn-danger:hover {
    background: rgba(255, 45, 85, 0.1);
    box-shadow: 0 0 15px var(--danger-glow);
}

.btn-large { padding: 0.85rem 2.5rem; font-size: 0.85rem; width: 100%; }
.btn-small { padding: 0.4rem 1rem; font-size: 0.7rem; letter-spacing: 0.08em; }
.btn-icon {
    padding: 0.5rem;
    border-color: var(--border);
    color: var(--text-dim);
    line-height: 1;
}
.btn-icon:hover { color: var(--accent); border-color: var(--accent); }
.btn-icon svg { display: block; }
.btn-tiny { padding: 0.2rem 0.5rem; font-size: 1rem; line-height: 1; }

.btn-copied { border-color: var(--success) !important; color: var(--success) !important; }
.copied { font-size: 0.7rem; letter-spacing: 0.1em; }

.spin { animation: spin 0.3s ease; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* ── URL display ── */
.url-display {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    overflow-x: auto;
}
.url-display code {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--success);
    flex: 1;
    word-break: break-all;
}

/* ── Tags ── */
.meta-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.tag {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.3rem 0.7rem;
    border-radius: 4px;
    border: 1px solid var(--border);
    color: var(--text-dim);
}
.tag-accent  { color: var(--accent);  border-color: rgba(0, 240, 255, 0.3);  background: rgba(0, 240, 255, 0.08); }
.tag-danger  { color: var(--danger);  border-color: rgba(255, 45, 85, 0.3);  background: rgba(255, 45, 85, 0.08); }
.tag-success { color: var(--success); border-color: rgba(0, 255, 136, 0.3);  background: rgba(0, 255, 136, 0.08); }
.tag-warning { color: var(--warning); border-color: rgba(255, 170, 0, 0.3);  background: rgba(255, 170, 0, 0.08); }
.tag-dim     { color: var(--text-dim); }

/* ── Paste content ── */
.paste-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.paste-content {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    overflow-x: auto;
}
.paste-content pre {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--text-bright);
    white-space: pre-wrap;
    word-wrap: break-word;
    line-height: 1.6;
    margin: 0;
}

/* ── Paste toolbar ── */
.paste-toolbar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}
.paste-toolbar .btn-small.active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(0, 240, 255, 0.08);
}

/* ── Encrypted notice ── */
.encrypted-notice {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: var(--radius);
    background: rgba(0, 240, 255, 0.05);
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--accent);
    font-family: var(--mono);
}
.encrypted-icon { font-size: 1.1rem; }

/* ── File drop zone ── */
.file-drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}
.file-drop-zone:hover,
.file-drop-zone.drag-over {
    border-color: var(--accent);
    background: rgba(0, 240, 255, 0.03);
}
.file-drop-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dim);
    font-size: 0.85rem;
}
.file-drop-text svg { color: var(--text-dim); }
.file-drop-text em { color: var(--accent); font-style: normal; }
.file-input-hidden {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    overflow: hidden;
}
.file-preview {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--mono);
    font-size: 0.8rem;
}
.file-preview-name {
    color: var(--text-bright);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 300px;
}
.file-preview-size { color: var(--text-dim); flex-shrink: 0; }

/* ── File attachment on view ── */
.file-attachment {
    margin-top: 1rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(0, 0, 0, 0.2);
}
.file-attachment-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-family: var(--mono);
    font-size: 0.8rem;
}
.file-attachment-info svg { color: var(--text-dim); flex-shrink: 0; }
.file-name { color: var(--text-bright); }
.file-size { color: var(--text-dim); }
.file-preview-img {
    margin-bottom: 0.75rem;
    border-radius: var(--radius);
    overflow: hidden;
}
.file-preview-img img {
    max-width: 100%;
    max-height: 400px;
    display: block;
    border-radius: var(--radius);
}

/* ── QR code ── */
.qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin: 1.5rem 0;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(0, 0, 0, 0.2);
}
.qr-container canvas {
    border-radius: 4px;
}
.qr-actions {
    display: flex;
    gap: 0.5rem;
}
.qr-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(8px);
}
.qr-modal-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
}
.qr-modal-content canvas {
    border-radius: 8px;
}

/* ── Status link ── */
.status-link {
    margin-bottom: 1.5rem;
}

/* ── Countdown ── */
.countdown {
    font-family: var(--mono);
    font-size: 3rem;
    font-weight: 700;
    color: var(--danger);
    text-shadow: 0 0 40px var(--danger-glow);
    text-align: center;
    margin: 2rem 0;
    letter-spacing: 0.1em;
}

/* ── Attempts warning ── */
.attempts-warning {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 170, 0, 0.2);
    border-radius: var(--radius);
    background: rgba(255, 170, 0, 0.05);
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
    color: var(--warning);
    font-family: var(--mono);
}

/* ── Markdown body ── */
.markdown-body {
    font-family: var(--sans);
    font-size: 0.95rem;
    color: var(--text-bright);
    line-height: 1.7;
}
.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
    font-family: var(--mono);
    color: var(--accent);
    margin: 1.5rem 0 0.75rem;
    line-height: 1.3;
}
.markdown-body h1 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5rem; }
.markdown-body h2 { font-size: 1.25rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; }
.markdown-body h3 { font-size: 1.1rem; }
.markdown-body p { margin-bottom: 1rem; }
.markdown-body a { color: var(--accent); text-decoration: underline; }
.markdown-body a:hover { text-shadow: 0 0 8px var(--accent-glow); }
.markdown-body code {
    font-family: var(--mono);
    font-size: 0.85em;
    padding: 0.15em 0.4em;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--accent);
}
.markdown-body pre {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
}
.markdown-body pre code {
    padding: 0;
    background: none;
    border: none;
    color: var(--text-bright);
    font-size: 0.85rem;
}
.markdown-body blockquote {
    border-left: 3px solid var(--accent);
    padding: 0.5rem 1rem;
    margin: 1rem 0;
    background: rgba(0, 240, 255, 0.03);
    color: var(--text);
}
.markdown-body ul, .markdown-body ol {
    margin: 0.5rem 0 1rem 1.5rem;
}
.markdown-body li { margin-bottom: 0.3rem; }
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}
.markdown-body th, .markdown-body td {
    border: 1px solid var(--border);
    padding: 0.5rem 0.75rem;
    text-align: left;
}
.markdown-body th {
    background: rgba(0, 240, 255, 0.05);
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
}
.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 1.5rem 0;
}
.markdown-body img {
    max-width: 100%;
    border-radius: var(--radius);
}

/* ── highlight.js overrides ── */
.paste-content pre.hljs {
    background: transparent;
    padding: 0;
    margin: 0;
    font-family: var(--mono);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ── Toast ── */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    font-family: var(--mono);
    font-size: 0.8rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    background: var(--surface-solid);
    border: 1px solid var(--border);
    color: var(--text);
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 10000;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-error { border-color: rgba(255, 45, 85, 0.4); color: var(--danger); }
.toast-success { border-color: rgba(0, 255, 136, 0.4); color: var(--success); }

/* ── Footer ── */
.footer {
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer-text {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* ── Animations ── */
.animate-in {
    animation: fadeSlideIn 0.4s ease;
}
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 600px) {
    html { font-size: 14px; }
    .container { padding: 1.5rem 1rem; }
    .panel { padding: 1.5rem; }
    .header { flex-direction: column; gap: 0.3rem; }
    .tagline { font-size: 0.65rem; }
    .input-prefix { font-size: 0.7rem; padding: 0 0.5rem; }
    .mode-btn { font-size: 0.65rem; padding: 0.6rem 0.3rem; }
    .countdown { font-size: 2.2rem; }
    .url-display { flex-direction: column; align-items: stretch; }
    .url-display code { font-size: 0.8rem; }
    .form-row-options { flex-direction: column; gap: 0; }
    .flex-1 { min-width: 0; }
    .file-preview-name { max-width: 150px; }
}