/* =============================================================================
   4. UI CONTROLS & BRANDING — STATE OF THE ART INTERACTIVE ENGINE
   ============================================================================= */

/* ─── Brand Component ─── */
.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-main);
    font-weight: var(--fw-extrabold);
    font-size: var(--text-lg);
    user-select: none;
    cursor: default;
}

.brand i {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--color-primary), var(--blue-700));
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.15rem;
    transition: transform var(--dur-norm) var(--ease-elastic), box-shadow var(--dur-norm) var(--ease-out);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.brand:hover i {
    transform: rotate(-10deg) scale(1.1);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
}

.brand-text {
    color: var(--color-text-main);
    letter-spacing: -0.025em;
    font-weight: var(--fw-extrabold);
}

/* ─── View Switcher (Mobile Toggle Bar) ─── */
.view-switch {
    display: none;
    background: var(--color-bg-input);
    padding: 4px;
    border-radius: var(--radius-full);
    gap: 4px;
    user-select: none;
    border: 1px solid var(--color-border);
}

.view-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-text-mute);
    transition: all var(--dur-norm) var(--ease-out);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.view-btn span {
    display: none;
}

.view-btn:hover {
    color: var(--color-text-main);
}

.view-btn.active {
    background: var(--color-bg-panel);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* ─── Control Bar Buttons ─── */
.controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: var(--radius-md);
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    color: var(--color-text-body);
    font-size: 1rem;
    transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-elastic), box-shadow var(--dur-fast) var(--ease-out);
    position: relative;
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.icon-btn:hover {
    background: var(--color-bg-app);
    border-color: var(--color-border-hov);
    color: var(--color-text-main);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.icon-btn:active {
    transform: translateY(0) scale(0.96);
}

.icon-btn:focus-visible {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-ring);
}

.icon-btn.primary {
    background: var(--color-primary);
    color: #ffffff;
    border: 1px solid transparent;
    padding: 0 16px;
    width: auto;
    font-weight: var(--fw-semibold);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.icon-btn.primary:hover {
    background: var(--color-primary-hov);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.icon-btn.primary:active {
    transform: translateY(0) scale(0.97);
}

.icon-btn .btn-label {
    font-size: var(--text-sm);
    font-weight: var(--fw-semibold);
}

.icon-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ─── Add New Entry Button ─── */
.btn-add {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px dashed var(--color-border-hov);
    border-radius: var(--radius-md);
    color: var(--color-text-body);
    font-weight: var(--fw-semibold);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--dur-norm) var(--ease-out);
    background: transparent;
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn-add:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-sub);
    transform: translateY(-1px);
}

.btn-add:active {
    transform: translateY(0) scale(0.99);
}

.btn-add i {
    transition: transform var(--dur-norm) var(--ease-elastic);
}

.btn-add:hover i {
    transform: rotate(90deg) scale(1.1);
}