/* ═══════════════════════════════════════════════
   tobot Components — Buttons, Inputs, Cards, etc.
   ═══════════════════════════════════════════════ */

/* ── Buttons ── */
.tb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 40px;
    padding: 0 var(--tb-space-4);
    font-family: var(--tb-font-body);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--tb-radius-md);
    transition: all var(--tb-duration) var(--tb-ease);
    white-space: nowrap;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.tb-btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.tb-btn-primary {
    background: var(--tb-blue);
    color: var(--tb-white);
}
.tb-btn-primary:hover {
    background: var(--tb-blue-hover);
    box-shadow: var(--tb-shadow-md);
}

.tb-btn-dark {
    background: var(--tb-gray-900);
    color: var(--tb-white);
}
.tb-btn-dark:hover {
    background: var(--tb-gray-800);
    box-shadow: var(--tb-shadow-md);
}

.tb-btn-secondary {
    background: var(--tb-gray-50);
    color: var(--tb-gray-800);
    border: var(--tb-border);
}
.tb-btn-secondary:hover {
    background: var(--tb-gray-100);
}

.tb-btn-ghost {
    background: transparent;
    color: var(--tb-gray-600);
}
.tb-btn-ghost:hover {
    background: var(--tb-gray-50);
    color: var(--tb-gray-900);
}

.tb-btn-outline {
    background: transparent;
    color: var(--tb-blue);
    border: 1.5px solid var(--tb-gray-200);
}
.tb-btn-outline:hover {
    border-color: var(--tb-blue);
    background: var(--tb-blue-pale);
}

.tb-btn-destructive {
    background: var(--tb-red);
    color: var(--tb-white);
}
.tb-btn-destructive:hover {
    background: #DC2626;
}

.tb-btn-lg {
    height: 48px;
    padding: 0 var(--tb-space-6);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--tb-radius-md);
}

.tb-btn-sm {
    height: 34px;
    padding: 0 var(--tb-space-3);
    font-size: 0.8125rem;
}

.tb-btn-full { width: 100%; }

.tb-btn:disabled, .tb-btn[disabled] {
    opacity: 0.5;
    pointer-events: none;
}

.tb-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--tb-blue-ring);
}

/* ── Inputs ── */
.tb-input, .tb-select, .tb-textarea {
    width: 100%;
    height: 40px;
    padding: 0 var(--tb-space-3);
    font-family: var(--tb-font-body);
    font-size: 0.875rem;
    color: var(--tb-gray-900);
    background: var(--tb-white);
    border: 1.5px solid var(--tb-gray-200);
    border-radius: var(--tb-radius-md);
    transition: border-color var(--tb-duration), box-shadow var(--tb-duration);
    -webkit-appearance: none;
}

.tb-input::placeholder, .tb-textarea::placeholder {
    color: var(--tb-gray-400);
}

.tb-input:focus, .tb-select:focus, .tb-textarea:focus {
    border-color: var(--tb-blue);
    box-shadow: 0 0 0 3px var(--tb-blue-ring);
}

.tb-input.error, .tb-textarea.error {
    border-color: var(--tb-red);
    box-shadow: 0 0 0 3px rgba(239,68,68,0.1);
}

.tb-textarea {
    height: auto;
    min-height: 120px;
    padding: var(--tb-space-3);
    resize: vertical;
    line-height: 1.5;
}

.tb-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpath d='m4 6 4 4 4-4'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 36px;
}

.tb-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--tb-gray-700);
    margin-bottom: 6px;
}

.tb-label-required::after {
    content: ' *';
    color: var(--tb-red);
}

.tb-field {
    margin-bottom: var(--tb-space-5);
}

.tb-field-error {
    font-size: 0.75rem;
    color: var(--tb-red);
    margin-top: 4px;
    display: none;
    align-items: center;
    gap: 4px;
    font-family: var(--tb-font-mono);
}
.tb-field-error.visible { display: flex; }

.tb-field-help {
    font-size: 0.75rem;
    color: var(--tb-gray-400);
    margin-top: 4px;
}

/* ── Cards ── */
.tb-card {
    background: var(--tb-white);
    border: 1px solid var(--tb-gray-100);
    border-radius: var(--tb-radius-lg);
    box-shadow: var(--tb-shadow-sm);
    padding: var(--tb-space-6);
    transition: box-shadow var(--tb-duration), border-color var(--tb-duration);
}

.tb-card-hover:hover {
    box-shadow: var(--tb-shadow-md);
    border-color: var(--tb-gray-200);
    cursor: pointer;
}

/* ── Badges ── */
.tb-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--tb-radius-full);
}

.tb-badge-blue   { background: var(--tb-blue-pale); color: var(--tb-blue); }
.tb-badge-green  { background: var(--tb-green-pale); color: var(--tb-green); }
.tb-badge-red    { background: var(--tb-red-pale);   color: var(--tb-red); }
.tb-badge-amber  { background: var(--tb-amber-pale); color: var(--tb-amber); }
.tb-badge-gray   { background: var(--tb-gray-100);   color: var(--tb-gray-600); }

/* ── Toast ── */
.tb-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 12px 20px;
    font-size: 0.875rem;
    font-family: var(--tb-font-body);
    border-radius: var(--tb-radius-md);
    box-shadow: var(--tb-shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 9999;
    transition: transform 0.35s var(--tb-ease);
    white-space: nowrap;
    background: var(--tb-gray-900);
    color: var(--tb-white);
}

.tb-toast.show { transform: translateX(-50%) translateY(0); }
.tb-toast-error   { background: var(--tb-red); }
.tb-toast-success { background: var(--tb-green); }

/* ── Spinner ── */
.tb-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: tb-spin 0.6s linear infinite;
    flex-shrink: 0;
    display: none;
}
.tb-spinner.visible { display: block; }

@keyframes tb-spin {
    to { transform: rotate(360deg); }
}

/* ── Separator ── */
.tb-separator {
    border: none;
    height: 1px;
    background: var(--tb-gray-100);
    margin: var(--tb-space-6) 0;
}

/* ── Divider with text ── */
.tb-divider-text {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--tb-gray-400);
    font-size: 0.75rem;
    font-family: var(--tb-font-mono);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin: var(--tb-space-6) 0;
}
.tb-divider-text::before,
.tb-divider-text::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--tb-gray-200);
}

/* ── Channel pills ── */
.tb-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--tb-gray-700);
    background: var(--tb-white);
    border: 1px solid var(--tb-gray-200);
    border-radius: var(--tb-radius-full);
    transition: all var(--tb-duration);
}
.tb-pill:hover {
    border-color: var(--tb-blue);
    background: var(--tb-blue-pale);
    color: var(--tb-blue);
}
.tb-pill svg { width: 16px; height: 16px; }

/* ── Password strength bars ── */
.tb-pwd-strength {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}
.tb-pwd-bar {
    flex: 1;
    height: 3px;
    background: var(--tb-gray-200);
    border-radius: 2px;
    transition: background 0.2s;
}
.tb-pwd-bar.weak   { background: var(--tb-red); }
.tb-pwd-bar.medium { background: var(--tb-amber); }
.tb-pwd-bar.strong { background: var(--tb-green); }

.tb-pwd-label {
    font-size: 0.75rem;
    color: var(--tb-gray-400);
    margin-top: 4px;
    font-family: var(--tb-font-mono);
    transition: color 0.2s;
}