/* ─── Mode Capsule (Encrypt/Decrypt) ─── */
.mode-capsule {
    display: flex;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 100px;
    padding: 6px;
    gap: 6px;
    box-shadow: var(--shadow-sm);
}
.mode-btn {
    border: none;
    background: transparent;
    padding: 10px 24px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 8px;
}
.mode-btn.active {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
}
.mode-btn i {
    font-size: 0.8rem;
}

/* ─── Layout Compression ─── */
.tool-hero { padding: 1.5rem 0 !important; border-bottom: 1px solid var(--border); }
.tool-hero-inner { gap: 1rem !important; }
.tool-page-icon { font-size: 2rem !important; }
.tool-hero-text h1 { font-size: 1.6rem !important; margin-bottom: 2px !important; }
.tool-hero-text p { font-size: 0.85rem !important; opacity: 0.8; }

.tool-workspace { padding-top: 1.5rem !important; padding-bottom: 2rem !important; }

/* ─── Config Card ─── */
.config-card {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}
.config-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.config-item { display: flex; flex-direction: column; gap: 4px; }
.config-item.wide { grid-column: span 3; }

/* ─── Panels ─── */
.editor-panel {
    background: var(--surface-1);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}
.form-control { height: 36px; font-size: 0.85rem; border-radius: var(--radius-md); }
textarea.code-textarea, textarea.code-output { min-height: 120px; font-size: 0.85rem; padding: 12px; }

.btn-primary.btn-lg { padding: 0.5rem 2rem !important; font-size: 0.9rem !important; border-radius: 50px !important; }

/* ─── Switch & Controls ─── */
.switch-row { height: 36px; gap: 8px; }
.switch-label { font-size: 0.8rem; font-weight: 600; }

/* ─── Sections ─── */
.tool-section { padding: 3rem 0 !important; }
.tool-section-alt { background: var(--bg-alt); }

.config-item label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 4px;
    display: block;
}

.config-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.config-label-row label {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}
.key-hint {
    font-size: 0.7rem;
    font-family: var(--font-mono);
    font-weight: 700;
}
.key-hint.ok { color: var(--success); }
.key-hint.warn { color: var(--warn); }

/* ─── Input with Icons ─── */
.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}
.input-with-icon .icon-left {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.input-with-icon .icon-right {
    position: absolute;
    right: 14px;
    color: var(--text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.2s;
}
.input-with-icon .icon-right:hover { color: var(--accent); }
.input-with-icon .form-control {
    padding-left: 40px;
    padding-right: 40px;
}

/* ─── Type Tabs ─── */
.type-tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}
.type-tab {
    background: transparent;
    border: none;
    padding: 8px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}
.type-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ─── Dropzone ─── */
.file-dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-1);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}
.file-dropzone:hover {
    border-color: var(--accent);
    background: rgba(var(--accent-rgb), 0.02);
}
.dropzone-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: var(--space-md);
    opacity: 0.8;
}
.dropzone-sub {
    display: block;
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.file-hidden-input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* ─── Switch Row ─── */
.switch-row {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    height: 38px;
}
.switch-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text);
}

.source-toggle {
    display: flex;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
}
.source-btn {
    border: none;
    background: transparent;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}
.source-btn.active {
    background: var(--surface-1);
    color: var(--accent);
    box-shadow: var(--shadow-sm);
}
.source-btn i { font-size: 0.7rem; }

@media (max-width: 768px) {
    .config-grid { grid-template-columns: 1fr; }
    .config-item.wide { grid-column: span 1; }
    .panel-flex-header { flex-direction: column; align-items: flex-start !important; gap: var(--space-md); }
}

/* ─── Pulse Animation ─── */
.badge-pulse {
    background: var(--accent);
    color: white;
    font-weight: 800;
    border-radius: 4px;
    box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.7);
    animation: badge-pulse-anim 2s infinite;
    z-index: 10;
    pointer-events: none;
}

@keyframes badge-pulse-anim {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(var(--accent-rgb), 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0); }
}